Logic forum - Recent Threads

SN74AUP2G34: Can component be underfilled?

Jaz Kallirai — Mon, 14 Sep 2026 22:44:15 GMT

Part Number: SN74AUP2G34

Hi,

We are planning to use TI PN SN74AUP2G34YFPR on our Cuircut Board. Can the TI part be underfilled after soldereed onto the board?

Thank you,

Jaz

SN74LVTH244A: SN74LVTH244A connection

sim hk — Mon, 14 Sep 2026 10:40:55 GMT

Part Number: SN74LVTH244A

Hi,

I have some questions regarding my schematic.

1OE is unsued. I connecting 1OE directly to VCC with no pull up resistor.

1A1,1A2, 1A3,1A4 connect directy to GND

1Y1, 1Y2, 1Y3, 1Y4 is left unocnnected

2OE is connected to a GPIO output pin of a FPGA. There is a pull up resistor to 3.3V

unused input is connected directly to GND

unused output is left connected

Vcc is connected to 3.3V via a 10nF capacitor

LSF0102: LSF0102 voltage

XIN XIE — Mon, 14 Sep 2026 09:31:21 GMT

Part Number: LSF0102

In the above picture, the SMB signal is sometimes 1.8V and sometimes 3.3V. Can this circuit communicate normally even when the signal is 1.8V? That is, 1.8V to 1.8V

In Figure 2, SMB2 signal is 3.3V, and the voltage of POW1 can vary, either 3.3V or 1.8V. Can the two sides communicate normally when POW1 is 3.3V?

TXU0204: Availability of Functional Safety Manual for TXU0204RUTR

Hori Shota — Mon, 14 Sep 2026 05:27:35 GMT

Part Number: TXU0204

Hi team,

Could you please let us know whether a Functional Safety Manual is available for TXU0204RUTR?

If available, please share the document or provide information on how to obtain it.

Best Regards,
Shota

SN74HCS541: Schematic review on SN74HCS541

Subhash R — Fri, 11 Sep 2026 15:35:41 GMT

Part Number: SN74HCS541

Hi Team,

I am using the SN74HCS541 Schmitt-trigger buffer to interface the inputs from the rotary switch and toggle switch. Could you please review the attached schematic and provide your feedback?

Also, do I need to add a pull-up resistor on the output side, or is the device output sufficient

The schematic is attached below.

Buffer-1.pdf

Thanks
Subhash R

SN74LVC2G125: Green status - SN74LVC2G125DCT3

Carsten Consultant Rothmann — Fri, 11 Sep 2026 10:55:15 GMT

Part Number: SN74LVC2G125

The SN74LVC2G125DCT3 does not have green status for chemicals but the SN74LVC2G125DCTR has.

Seems it is because Bond wire and Lead Frame Plating has not been tested for Halogen.

How to get green status on the SN74LVC2G125DCT3 for high quantities?

TXU0104: Schematic review for TXU0104PWR

Subhash R — Fri, 11 Sep 2026 10:36:42 GMT

Part Number: TXU0104

Hi Team,

We are interfacing the TXU0104PWR with an encoder that operates at 5 V and is compatible with CMOS and TTL logic levels. The translated signals will be connected to the FPGA.

Could you please review the schematic and provide your feedback? Specifically, I would like to know whether any external pull-up resistors are required on the encoder inputs or outputs, considering the TXU0104PWR interface.

SN74LVC2G74-Q1: Request functional safety report

Chase Jeong — Fri, 11 Sep 2026 08:08:35 GMT

Part Number: SN74LVC2G74-Q1

Dear TI experts,

Could you check the functional safety report of SN74LVC2G74QDCURQ1 and SN74LVC541AQPWRQ1?

I cannot find the document in TI.com

Best regards,

Chase

SN74AHC1G04: RMA-2026-13215 / CPR261155336

Ximena Chavez — Thu, 10 Sep 2026 21:27:11 GMT

Part Number: SN74AHC1G04
Other Parts Discussed in Thread: SN74AHC1G14, SN74LVC1GU04

Hello, Kidly advise previously I create the CPR261155336 and I was direct in here. We are trying to receive an RMA for FA and replacements for the below failure.

Customer Comment: Our customer, Synchrony Magnetic Bearings, a division of Johnson Controls, is seeing field failures on product built with parts marked 1R6. Their engineering team has driven this to root cause: with 1R6 parts, the sensor circuits will not start oscillating at power-up. X-ray comparison of 1R6 versus ACJ confirms a die revision between the two codes. Parts marked AC3 or ACJ function correctly. We understand TI has already acknowledged to Synchrony that the difference between these markings relates to design revision, manufacturing location, and lot code.
This has escalated into the parent organization, so if there is a TI account team assigned to Johnson Controls.

SN54LVC14A-SP: 2.5V level translator

Robert — Thu, 10 Sep 2026 19:34:44 GMT

Part Number: SN54LVC14A-SP
Other Parts Discussed in Thread: SN54AC14-SP, SN54HC14-SP,

Hello,

I have a 2.5V device that needs to communicate with a 3.3V system. I plan on using the SN54LVC14A-SP to translate the 3.3V signals down to 2.5V, and I'm wondering if I can use the same device to translate from 2.5V up to 3.3V. The datasheet says this part can be used to translate between 3.3V and 5V, and I would think it's even safer to translate 2.5V up to 3.3V given the lower total voltage across the PMOS input gate when the input is at 2.5V. Is this device a good candidate for this up-translation? It also looks like SN54HC14-SP and SN54AC14-SP could do the same translation with a possibly lower Vt+ threshold. I just want to make sure using a lower input than Vcc but higher than Vt+ won't cause any harm to the input PMOS.

Thanks,

Robert

SN74LVCC3245A: Questions regarding quality and implementation

eiichi tsujimoto — Thu, 10 Sep 2026 11:08:57 GMT

Part Number: SN74LVCC3245A

Confidential_pn_touroku_TsuC_ver52_260910e.xlsx

If there is a suitable point of contact, please provide details.

I would like support in Japanese.

As the attached file is confidential, it must not be forwarded to E2E.

Inquiry Items

1. Implementation Using Lead Free Solder

The target solder is lead free solder Sn 3.0Ag 0.5Cu.

1.1 Reflow Implementation

Is reflow implementation in accordance with J STD 020 possible?

Please answer Yes, No, or Unknown.

If the answer is Yes, no answer is required for Section 1.2.

If the answer is No or Unknown, please answer whether the product is compatible with our reflow conditions. Please also indicate whether it can withstand the specified temperature conditions and two reflow cycles.

Reference material:

Confidential_pn_touroku_TsuC_ver5_260218.xlsx, table No. 19 and the graph in the Lead Free column

1.2 Automatic Mounting

Is the product compatible with automatic mounting?

Please answer whether the product has a shape suitable for automatic mounting equipment. Please answer Yes or No.

1.3 Wave Soldering

Is the product compatible with wave soldering?

Please answer Yes, No, or Unknown.

If the answer is Yes, please provide the recommended implementation conditions.

2. Implementation Using Leaded Solder

2.1 Compatibility with Leaded Solder

Is the product compatible with leaded solder?

Please answer Yes, No, or Unknown.

2.2 Reflow Implementation

Is reflow implementation using leaded solder in accordance with J STD 020?

Please answer Yes, No, or Unknown.

If the answer is Yes, no answer is required for Section 2.3.

Reference material:

Confidential_pn_touroku_TsuC_ver5_260218.xlsx, table No. 20 and the graph in the Leaded column

2.3 Compatibility with Our Reflow Conditions

If the product is compatible with leaded solder, is it compatible with our reflow conditions?

Please provide the applicable temperature conditions and indicate whether two reflow cycles are possible.

3. Hand Soldering and Rework Conditions

3.1 Hand Soldering

Is the product compatible with hand soldering at a temperature of 350 degrees C for 3 seconds?

This condition will be used to correct soldering defects after reflow implementation.

3.2 Recommended Rework Conditions

If the product is not compatible with 350 degrees C for 3 seconds, please provide the recommended rework conditions.

Please specify the recommended temperature, heating time, number of heating cycles, and any other precautions.

4. Cleaning Requirements

4.1 Necessity of Cleaning

Is cleaning after implementation mandatory?

4.2 No Clean Use

Can the product be used without cleaning?

We plan to use no clean solder with a halogen content of less than 0.02 percent.

4.3 Reason Cleaning Is Required

If no clean use is not possible, please explain the reason.

4.4 Precautions for No Clean Use

If no clean use is possible, please provide any precautions for use.

4.5 Reference Document

We could not find any description regarding no clean use in Snoa550h.pdf. However, cleaning conditions are described in the document.

Please confirm whether no clean use is possible and specify any necessary conditions.

5. Second Reflow and Upside Down Reflow

5.1 Second Reflow

Is the product compatible with a second reflow cycle?

Please answer Possible or Not Possible.

5.2 Upside Down Reflow

After reflow soldering, is it possible to turn the board over and perform reflow with the component side facing downward?

Please answer Possible or Not Possible.

5.3 Reason if Not Possible

If a second reflow or upside down reflow is not possible, please specify the reason.

Please select all applicable items from the following:

The component is prohibited from reflow
The maximum allowable number of reflow cycles is one
The component may fall off during reflow
Other

6. Plating Specifications for Soldering Electrodes

6.1 Plating Structure and Materials

Please provide the plating structure and materials of the soldering electrodes.

The datasheet indicates that the electrode plating material is NiPdAu. If the actual specifications differ, please provide the latest specification sheet or datasheet.

6.2 Plating Thickness

Please provide the thickness of each plating layer.

Base layer 1, Ni: minimum value to maximum value
Base layer 2, Pd: minimum value to maximum value
Surface layer, Au: minimum value to maximum value

7. Market Quality and Quality Performance

7.1 Market Defect Rate

Please provide the following information:

Target value or control value
Actual market defect rate for the applicable product or a similar product

7.2 Yield or Good Product Rate

Please select the applicable category:

90 percent or higher
70 percent or higher and less than 90 percent
50 percent or higher and less than 70 percent
Less than 50 percent
Other, such as confidential information

7.3 Market Quality Claims

Have there been any market quality claims?

Please answer Yes or No.

If the answer is Yes, please describe the claim details to the extent possible.

7.4 Market Share

Please provide the market share of the applicable series.

7.5 Previous Process Changes

Have there been any previous process changes for the applicable part number or series?

Please answer Yes or No.

If the answer is Yes, please describe the change details and implementation date to the extent possible.

8. Production System and Production Capacity

8.1 Production Facilities and Related Departments

Please provide information on the following facilities and departments:

Device manufacturing plant
Assembly plant
Inspection plant
Failure analysis department
Country where each plant or department is located

8.2 Production Capacity

Please provide the production capacity for the applicable part number or series.

Planned production volume: ______ units per month
Actual production volume: ______ units per month

8.3 Production Start Date

Please provide the production start date.

Year and month: ______

8.4 Future Production Continuity

Please provide the planned production continuation period.

Planned continuation period: ______ years

8.5 Lead Time

Please provide the standard lead time from order placement to delivery.

If the lead time differs between normal and peak periods, please provide both lead times.

9. Shipment and Delivery Record

9.1 Shipment Record for Communication Equipment Applications

Have you supplied products for communication equipment applications to other companies in the same industry?

Please answer Yes or No.

If the answer is Yes, please provide the following information to the extent possible:

Applicable product field or customer
Delivery quantity
Delivery period

10. Device Specifications

10.1 Design Rule

Please provide the design rule.

Please use micrometers as the unit.

10.2 Wafer Size

Please provide the wafer size of the device.

Examples include 6 inches, 8 inches, and 12 inches.

10.3 Die Cross Section

Please provide a cross sectional diagram of the die structure.

Please include the material used for each layer.

If it is difficult to provide the document, please provide a URL where the information can be accessed.

11. Bonding Wire

11.1 Bonding Wire Material

Please provide the material of the bonding wire.

The Material Content table appears to indicate copper without surface coating. Please confirm whether this understanding is correct.

If the information differs, please provide the following:

Wire material
Whether surface coating is present
Coating material, if surface coating is present

11.2 Bonding Wire Diameter

Please provide the bonding wire diameter.

Please use micrometers as the unit.

12. Package Specifications

12.1 Package Cross Section

Please provide a cross sectional diagram of the package structure.

Please include the material used for each component.

If it is difficult to provide the document, please provide a URL where the information can be accessed.

12.2 Confidential Package

Is this a confidential package?

Please answer Yes, No, or Unknown.

If the answer is Yes, please explain the structure or specifications used to maintain confidentiality to the extent possible.

13. Mass Production Start Date

13.1 Mass Production Start Date

Please provide the mass production start date for the applicable part.

Year and month: ______

13.2 Production Volume at the Start of Mass Production

Please provide the production volume at the start of mass production.

Please state the quantity in thousands of units per month.

13.3 Definition of Production Start Date

If the production start date and the mass production start date have different definitions, please provide both dates separately.

SN74LVCC3245A: Regarding the ⊿t/⊿v Measurement Conditions for the SN74LVCC3245A

Kota Morihara — Thu, 10 Sep 2026 01:13:04 GMT

Part Number: SN74LVCC3245A

The datasheet specifies a maximum input transition rate of ⊿t/⊿v = 10ns/V.
For VCCA = 3.3 V and VCCB = 5.0 V, could you please clarify:
1.How are ⊿t and ⊿V defined for this specification?
2.What voltage range should be used to calculate ⊿V?
3.What is the equivalent maximum input rise time/fall time for the A-port and B-port under these supply conditions?
For example, should ⊿V be measured from 0 V to VCC, or between specific input threshold levels?

SN54LVC14A-SP: TID Rating of SN54LVC14A-SP

Scott Hill — Wed, 09 Sep 2026 15:51:30 GMT

Part Number: SN54LVC14A-SP
Other Parts Discussed in Thread: SN54AC14-SP, SN54SC6T14-SEP

Hi, I am looking into using PN: SN54LVC14A-SP for a project with a 30krad TID requirement. The datasheet does not list a TID even though it is a -SP part. What is the TID rating for this component. I see there are three packages, I don't know if it varies depending on the package

SN74LV595A: [EXTERNAL] External Need MSL for

Thilaga Selvamani — Wed, 09 Sep 2026 07:37:18 GMT

Part Number: SN74LV595A

Hello Respected

This is Thilaga from Flex
We are currently working with one of our manufacturing plants to collect below information

Site: Suzhou

Please provide us the MSL data for the below parts

mpn	mfr_dsca	msl
SN74ALS574BDWRG4	TEXAS INSTRUMENTS
SN74ALS373ADWRG4	TEXAS INSTRUMENTS
SN75ALS160DWRE4	TEXAS INSTRUMENTS
74ACT11623DWR(EOL)	TEXAS INSTRUMENTS
PPS3435CAGBJDDFRQ1	TEXAS INSTRUMENTS
SN74LV595APWT	TEXAS INSTRUMENTS
SN74ALS253DRG4	TEXAS INSTRUMENTS
SN74ALS574BDWRG4	TEXAS INSTRUMENTS
SN74ALS00ADRG4	TEXAS INSTRUMENTS
SN75477DG4	TEXAS INSTRUMENTS
SN75ALS160DWRE4	TEXAS INSTRUMENTS
SN75ALS176DR(LTB 2024/01/12)	TEXAS INSTRUMENTS
CD74HC4052M96G4(LTB20240621 )	TEXAS INSTRUMENTS
SN74AHC08D	TEXAS INSTRUMENTS
SN74AHC08DRG4	TEXAS INSTRUMENTS
SN74LVC1G14DCKRG4	TEXAS INSTRUMENTS
SN74AHCT1G14DBVT	TEXAS INSTRUMENTS
CDCVF25084PWRG4	TEXAS INSTRUMENTS
SN74LVT125PW	TEXAS INSTRUMENTS
SN65LVDS31D	TEXAS INSTRUMENTS
SN74LVC1G34DCKT	TEXAS INSTRUMENTS
MAX3243ECPWRG4	TEXAS INSTRUMENTS
SN74LVC2G04DCKT	TEXAS INSTRUMENTS
PCA9306DCUT	TEXAS INSTRUMENTS
SN74ABT843DBRG4	TEXAS INSTRUMENTS
SN74AUC1G14DCKRG4	TEXAS INSTRUMENTS
SN74LV166ADG4	TEXAS INSTRUMENTS
TPD4S009DBVRG4	TEXAS INSTRUMENTS
SN74LVC2G32DCTRG4	TEXAS INSTRUMENTS
TXB0101DBVTG4	TEXAS INSTRUMENTS
CD74AC74M96	TEXAS INSTRUMENTS
SN75160BDWE4(LTB20231117)	TEXAS INSTRUMENTS
SN74HC594DR	TEXAS INSTRUMENTS
SN74AHCT573DWRG4	TEXAS INSTRUMENTS
SN74ABT162245DLG4	TEXAS INSTRUMENTS
SN754410NEE4	TEXAS INSTRUMENTS
SN75C1168NSR(LTB20240628)	TEXAS INSTRUMENTS
UCC27517DBVT	TEXAS INSTRUMENTS
SN74LVC2G08DCUT	TEXAS INSTRUMENTS
LM311P	TEXAS INSTRUMENTS
LM334Z/NOPB	TEXAS INSTRUMENTS
LF442CN/NOPB	TEXAS INSTRUMENTS
LM78L05ACM/NOPB	TEXAS INSTRUMENTS
LM78L05ACMX/NOPB	TEXAS INSTRUMENTS
DAC0800LCM/NOPB	TEXAS INSTRUMENTS
LM393M/NOPB	TEXAS INSTRUMENTS
LM393MX/NOPB	TEXAS INSTRUMENTS
LM311MX/NOPB	TEXAS INSTRUMENTS
LM79L05ACM/NOPB	TEXAS INSTRUMENTS
LM79L15ACMX/NOPB	TEXAS INSTRUMENTS
LM78L15ACMX/NOPB	TEXAS INSTRUMENTS
LM4040C50IDBZR	TEXAS INSTRUMENTS
LM4040C50IDBZT	TEXAS INSTRUMENTS
LM4040C10IDBZR	TEXAS INSTRUMENTS
TLC1543CDWRG4	TEXAS INSTRUMENTS
TLC1543QDWR	TEXAS INSTRUMENTS
TLC1543QDWRG4	TEXAS INSTRUMENTS
LM324AMX/NOPB	TEXAS INSTRUMENTS
REG1117-3.3/2K5G4	TEXAS INSTRUMENTS
UC3845ANG4	TEXAS INSTRUMENTS
TLC5620CDRG4	TEXAS INSTRUMENTS
TLV1543CDB	TEXAS INSTRUMENTS
TLV1543CDB(LTB03142024)	TEXAS INSTRUMENTS
TL5001CDRG4	TEXAS INSTRUMENTS
LM393PW(LTB2023/11/2)	TEXAS INSTRUMENTS
LM339PWG4	TEXAS INSTRUMENTS
TLC2543CDB	TEXAS INSTRUMENTS
TLC2543IDBRG4Q1	TEXAS INSTRUMENTS
LM337IMPX/NOPB	TEXAS INSTRUMENTS
OPA336N/250G4	TEXAS INSTRUMENTS
LM431ACM3X/NOPB	TEXAS INSTRUMENTS
TPS60400DBVTG4	TEXAS INSTRUMENTS
TPS76625D	TEXAS INSTRUMENTS
TPS76625DRG4	TEXAS INSTRUMENTS
SN105125DBVRG4	TEXAS INSTRUMENTS
TPS75003RHLRG4	TEXAS INSTRUMENTS
UC3845AD8(LTB04292024)	TEXAS INSTRUMENTS
LM4120AIM5X-4.1/NOPB	TEXAS INSTRUMENTS
LP3984IMF-1.8/NOPB(EOL)	TEXAS INSTRUMENTS
TLV71318PDBVR	TEXAS INSTRUMENTS
TS5A3159DCKT(LTB20241212)	TEXAS INSTRUMENTS
REF3125AIDBZT	TEXAS INSTRUMENTS
TS5A3159DBVR	TEXAS INSTRUMENTS
LM3100MH/NOPB	TEXAS INSTRUMENTS
LMC6482IMM/NOPB(EOL)	TEXAS INSTRUMENTS
LMC6482IMMX/NOPB	TEXAS INSTRUMENTS
TLV5616CD	TEXAS INSTRUMENTS
LM4120AIM5X-5.0/NOPB	TEXAS INSTRUMENTS
LM397MFX/NOPB	TEXAS INSTRUMENTS
CD4052BPWRG4(LTB2024/03/30)	TEXAS INSTRUMENTS
CD4051BM(LTB20240621)	TEXAS INSTRUMENTS
CD4051BMT(LTB20240621)	TEXAS INSTRUMENTS
CD4053BM(LTB20240621)	TEXAS INSTRUMENTS
CD4053BMT(LTB20240621)	TEXAS INSTRUMENTS
LMC6041IM/NOPB(LTB9/7/2024)	TEXAS INSTRUMENTS
UC3845D8(LTB04292024)	TEXAS INSTRUMENTS
ADC121S021CIMFX/NOPB	TEXAS INSTRUMENTS
TLV70233DBVR	TEXAS INSTRUMENTS
TPS54231D	TEXAS INSTRUMENTS
CD74HC4067PWR	TEXAS INSTRUMENTS
UC3717ANG4	TEXAS INSTRUMENTS
TLC3578IDW	TEXAS INSTRUMENTS
UC2845AD8(LTB04292024)	TEXAS INSTRUMENTS
LM6132AIM/NOPB	TEXAS INSTRUMENTS
UC3843AD8(LTB04292024)	TEXAS INSTRUMENTS
LM1117MPX-2.5/NOPB	TEXAS INSTRUMENTS
TLV71330PDBVR	TEXAS INSTRUMENTS
HDC1080DMBR	TEXAS INSTRUMENTS
INA181A1IDBV	TEXAS INSTRUMENTS
LMC6482IM/NOPB	TEXAS INSTRUMENTS
BZX84C15VDBZR	TEXAS INSTRUMENTS
LMC7101BIM5/NOPB(LTB9/7/2024)	TEXAS INSTRUMENTS
LMC7101BIM5X/NOPB	TEXAS INSTRUMENTS
LM358AM/NOPB	TEXAS INSTRUMENTS
SN74HCT573N	TEXAS INSTRUMENTS
DAC0832LCN NOPB	TEXAS INSTRUMENTS
TL074BCD	TEXAS INSTRUMENTS
SN65LVDS179DR	TEXAS INSTRUMENTS
SN74ALS38BD(OBS02292024)	TEXAS INSTRUMENTS
SN74ALS09D(OBS02292024)	TEXAS INSTRUMENTS
TL431ACDRG4(OBS11302023)	TEXAS INSTRUMENTS
TL594CDRG4(OBS5/20/2024)	TEXAS INSTRUMENTS
LM324ADRG4(OBS05222024)	TEXAS INSTRUMENTS
LM45CIM3/NOPB(OBS02092024)	TEXAS INSTRUMENTS
SN65220DBVT(OBS07312023)	TEXAS INSTRUMENTS
SN65220DBVT(OBS07312024)	TEXAS INSTRUMENTS
TPD1E10B06DPYT(OBS20270427)	TEXAS INSTRUMENTS
MAX3232IDR(OBS02172023)	TEXAS INSTRUMENTS
SN75176BD(OBSAUG132022)	TEXAS INSTRUMENTS
SN75176BDG4(OBSAUG132022)	TEXAS INSTRUMENTS
SN74HC594DW(OBS02292024)	TEXAS INSTRUMENTS
SN75ALS176D(OBS1/12/2024)	TEXAS INSTRUMENTS
SN75ALS176DR(OBS1/12/2024)	TEXAS INSTRUMENTS
SN74ALS843DW(OBS02292024)	TEXAS INSTRUMENTS
SN74AHCT02DG4(OBS02292024)	TEXAS INSTRUMENTS
PCA9306DCUTG4(OBS10212022)	TEXAS INSTRUMENTS
TRS3222EIDBR(OBSJAN-12-2024)	TEXAS INSTRUMENTS
SN75C1168NSR(OBS06282024)	TEXAS INSTRUMENTS
MAX3222CDBR(OBSJAN-12-2024)	TEXAS INSTRUMENTS
TL494CDRG4(OBS5/20/2024)	TEXAS INSTRUMENTS
TL431ACDRG4(OBS11302023)	TEXAS INSTRUMENTS
TL594CDRG4(OBS5/20/2024)	TEXAS INSTRUMENTS
LM45CIM3/NOPB(OBS02092024)	TEXAS INSTRUMENTS
LM339PWG4(OBS09072024)	TEXAS INSTRUMENTS
LM60CIM3/NOPB(OBS02092024)	TEXAS INSTRUMENTS
OPA695IDBVT(OBS09072024)	TEXAS INSTRUMENTS
UC3845AD8(OBS04292024)	TEXAS INSTRUMENTS
LM4120AIM5-4.1/NOPB(OBS03062024)	TEXAS INSTRUMENTS
LM4120AIM5-5.0/NOPB(OBS03062024)	TEXAS INSTRUMENTS
DRV8824PWP(OBS3/19/2025)	TEXAS INSTRUMENTS
CD4051BM(OBS06212024)	TEXAS INSTRUMENTS
CD4051BMT(OBS06212024)	TEXAS INSTRUMENTS
CD4053BM(OBS06212024)	TEXAS INSTRUMENTS
CD4053BMT(OBS06212024)	TEXAS INSTRUMENTS
LMC6041IM/NOPB(OBS09072024)	TEXAS INSTRUMENTS
UC3845D8(OBS04292024)	TEXAS INSTRUMENTS
UC2845AD8(OBS04292024)	TEXAS INSTRUMENTS
LM6132AIM/NOPB(OBS05222024)	TEXAS INSTRUMENTS
UC3843AD8(OBS04292024)	TEXAS INSTRUMENTS
HDC1080DMBT(OBS02092024)	TEXAS INSTRUMENTS
OPA404KP(OBS20261218)	TEXAS INSTRUMENTS
TLV810SDBZT(OBS06152023)	TEXAS INSTRUMENTS
LM7915CT(OBS03182024)	TEXAS INSTRUMENTS
MAX3223IDBR(OBS11172023)	TEXAS INSTRUMENTS

Thank You!!

TMUX1308A-Q1: TMUX output issue

Arunkumar S — Wed, 09 Sep 2026 07:37:08 GMT

Part Number: TMUX1308A-Q1

Hi Team,

We are using the TMUX1308ABQBR in our design, and the channel inputs are configured as follows:

CH1 – 0.75 V
CH2 – 1.8 V
CH3 – 1.1 V
CH4 – 1.8 V
CH5 – 3.3 V
CH6 – 0.85 V

The EN pin has a weak pull-up resistor, while the address pins (A0, A1, and A2) are left floating.

When we power on the board, we observe approximately 3.3 V at the MUX output.

Could you please help us understand why the MUX output is becoming 3.3 V during power-up when the address pins are floating? Also, please advise whether the address pins need to be externally pulled up or pulled down to ensure a defined channel selection.

Thanks & Regards,
Arunkumar S

SN74LVC244A: pls provide the update datasheet for SN74LVC244ADWR after PCN:20260709000.1

Shiky Ma — Wed, 09 Sep 2026 00:52:04 GMT

Part Number: SN74LVC244A

Pls provide the update datasheet of SN74LVC244ADWR after PCN#PCN:20260709000.1,thanks

Product Customer part number
SN74LVC244ADWR 27-306784-000-RP00
SN74LVC244ADWR
SN74LVC244ADWRE4
SN74LVC244ADWR 27-300928-000-R000
SN74LVC244ADWR 27-306784-000-F000
SN74LVC244ADWR 27-306784-000-R000
SN74LVC541ADWR

SN74AHC123A: SN74AHC123A repeatedly outputting pulses.

nelson chang — Tue, 08 Sep 2026 08:03:23 GMT

Part Number: SN74AHC123A
Other Parts Discussed in Thread: TPUL2G223

Following up on the previous question

https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1635499/sn74ahc123a-design-review-uart-transmission-status-led-3-5hz-flashing-using-sn74ahct123a/6327840

We've currently identified an issue: after our system shuts down...

when input signal (1A) is low, we expect output signal (2Q) to be low.

However, it is currently repeatedly outputting pulses.

if considering only part 2:

2A = always L

2B = always H

2CLR = rising edge then keep H

Should 2Q only output one pulse?

Could you please help me check for any design errors?

Thank you.

The original schematic is shown below (NI stands for 'Not Installed').

SN74LV6T07-Q1: Request for Guidance on SN74LV6T07PWR Reset Logic Circuit

Bhakti Jena — Tue, 08 Sep 2026 06:59:47 GMT

Part Number: SN74LV6T07-Q1

Hi Team,

Could you please help me review and design the attached reset logic circuit using the SN74LV6T07PWR?

I have three reset signals in the circuit, and the JTAG_RESET signal is connected to the NRST pin of the MCU. Please refer to the attached circuit diagram for the connection details.

The WD_RST* signal is in a known state, as it is generated by the TPS3705-33DR supervisory IC. However, the other two reset signals may be in different states, including LOW, HIGH, High-Z, or Don't Care, depending on the operating condition.

Could you please help me determine the expected output of the SN74LV6T07PWR for the different combinations of these three reset signals? Specifically, I would like to understand whether the output will be LOW, HIGH, or High-Z under each possible condition.

Additionally, could you please advise what would happen if the supervisory IC is changed to one with an active-low, push-pull output? I would like to understand whether this type of output can be directly interfaced with the SN74LV6T07PWR in the proposed circuit and whether it would affect the expected reset logic or create any potential contention between the outputs.

Please refer to the attached image for the specific signal conditions and circuit configuration.

Your guidance on the correct implementation and expected output behaviour would be greatly appreciated.

Thanks and regards,
Bhakti

SN74LVC1G125-EP: SN74LVC1G125-EP: Thermal resistance values

Bryan LEE — Tue, 08 Sep 2026 05:04:16 GMT

Part Number: SN74LVC1G125-EP
Other Parts Discussed in Thread: SN74LVC1G04-EP, SN74LVC1GX04-EP, SN74LVC1G00-EP, LP5912-EP, SN74AUP1G17-EP, SN74LVC2G74-EP, SN74LVC2G04-EP, SN74LVC2G04

SN74LVC1G125-EP: Thermal resistance values

Most of the datasheets for microcircuits include the Thermal resistance Junction to Ambient (thetaJA), but do not include the thermal resistance to the board (thetaJB) or the thermal resistance to the the top of the case (ThetaJC), or max junction temperature. Would you be able to provide these thermal values for the following TI microcircuits?

SN74LVC1G125-EP

SN74LVC1G04-EP,

SN74LVC2G04-EP,

SN74LVC1G00-EP,

SN74AUP1G17-EP,

SN74LVC2G74-EP,

SN74LVC1GX04-EP,

LP5912-EP

SN74LVC1G08: No valid link to download PPAP document

Lena Jie — Tue, 08 Sep 2026 03:30:28 GMT

Part Number: SN74LVC1G08

There is no valida link to download PPAP document for 9022904, no contact person in mail to describe the problem and solve it quickly.

SN74LVC1G08-Q1: Q&A

Daniel Wang (auto) — Tue, 08 Sep 2026 02:52:21 GMT

Part Number: SN74LVC1G08-Q1

Hi team,

We are using the SN74LVC1G08QDCKRQ1 in the SoC reset circuit design and have encountered a few questions. Could you please help confirm the following? Thank you.

When IO_3.3V is not powered but KRST_3.3V is powered, KRST_3.3V will backfeed into the output pin (Y pin) of U1012. Is this application condition acceptable? Could it damage the IC? (purple line)
When both IO_3.3V and KRST_3.3V are not powered, but the input pins (A pin and B pin) of U1012 and U1013 are at a high logic level, is this application condition acceptable? Could it damage the IC? (Blue line)

BR,

Daniel

SN74LVC1G98-Q1: Current Consumption

Marius Pop — Mon, 07 Sep 2026 12:46:24 GMT

Part Number: SN74LVC1G98-Q1

Hello,

I am reviewing a schematic and I am calculating the current consumption for the voltage rails that are used in the project.

The configurable multi-function gate SN74LVC1G98-Q1 is used in the digital interface and it is supplied from 3V3.

I looked into the datasheet and I couldn't find anything related to the current consumption on the VCC pin.

Could you share with me please a graph that shows Ivcc vs Vcc, or tell me please what could be the range of current consumption for an operating temperature range 0deg up to +45deg?

Thank you,

Marius

SN74HCS595-Q1: Abnormal output low level

Frank QIN — Mon, 07 Sep 2026 12:07:59 GMT

Part Number: SN74HCS595-Q1

Hi Team,

In our BMS system, we are experiencing an abnormal drop-out issue with the drive relay during vehicle operation. Below is our application using the SN74HCS595QPWRQ1, where we use the 595's clear and latch functions to implement relay clear, drive, and hold operations. We would like to confirm whether the SN74HCS595QPWRQ1 has any condition under which it may abnormally output a low level, causing an abnormal turn-off of our low-side relay driver.

If such a condition exists, we would like to review the FTA and discuss whether design changes can be made to improve robustness.

Thank you

Regards,

Frank

SN74LVC8T245: SN74LVC8T245 Level Shifter 1.5V to 5V

Yoel Ben-Naim — Mon, 07 Sep 2026 11:20:46 GMT

Part Number: SN74LVC8T245

Hi,

The SN74LVC8T245 datasheet says that the SN74LVC8T245 has an enhanced input voltage that can go down to 1.2V depends on the VinH-min but it is not stated in the list at the reccomended operating electrical charectaristics.

My quenstion is, is it possible to translate from 1.5V to 5V when VCCA is 1.8V and VCCB is 5V and in what rate?

CD14538B: ESD Data for TSSOP package

Jejomar Ildefonso — Mon, 07 Sep 2026 09:51:22 GMT

Part Number: CD14538B

Hi Team,

Is the ESD data discussed on the original thread also applicable for the CD14538BPWR variant?

If not, do we have the data for the TSSOP package variant?

Kind Regards,

Jejomar