Tool/software:
レベルシフタ SN74AXC4T774PWR の遅延をオシロで確認したところ、
(1) SPI Read:3.3V ⇒ 1.2V バッファ遅延時間 = 28ns
(2) SPI Write:1.2V ⇒ 3.3V バッファ遅延時間 = 14ns
の結果となり、方向により遅延時間に大きな差異が見受けられました。
このことについて以下の質問にご回答お願いいたします。
・方向によって遅延時間が違う場合があるか…
Tool/software:
レベルシフタ SN74AXC4T774PWR の遅延をオシロで確認したところ、
(1) SPI Read:3.3V ⇒ 1.2V バッファ遅延時間 = 28ns
(2) SPI Write:1.2V ⇒ 3.3V バッファ遅延時間 = 14ns
の結果となり、方向により遅延時間に大きな差異が見受けられました。
このことについて以下の質問にご回答お願いいたします。
・方向によって遅延時間が違う場合があるか…
Tool/software:
I want to convert the level of an OD output signal through this level shifter, so I place a pull-up resistor at the input. However, this level shifter is a CMOS push-pull output.Does the output not require a…
Tool/software:
Hi expert,
Is there an active HIGH enable version of SN74AXC4T774? Or a way to configure this as active HIGH?
Thank you,
McKenna
Tool/software:
Please recommend several level conversion chips for SPI communication. The maximum communication speed we use is 10MHz
Thank you so much!
Tool/software:
Hi team,
Customer is using SN74AXC4T774 - Q1 for SPI interface. Is there any limitation of the layout?
Please see below for 2 paths…
Tool/software:
Dear Team,
Could you please clarify on how the thermal pad of the SN74AXC4T774BQBR level translator should be terminated?
Should it be left unconnected (NC) or connected to ground?
Tool/software:
Dear TI support team,
Could you provide me SN74AVC4T774 and SN74AXC4T774 Ioz polarity and value depending on junction temperature ?
We found an issue on our design…
Tool/software:
Hi Team,
Need to confirm if SN74AXC4T774 can support NCSI.
Thanks.
Tool/software:
Hi,
I'm trying to run SPI at 50MHz and I need to translate voltages from 1.8V to 1.2V ~ 3.3V.
I'm using the SN74AVC4T774 which works perfectly at up to 30MHz…
Hello,
I have read in the data sheet (chapter 7.3.9) that the internal resistors are static 71k. However, in the FAQ (https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1101096/faq-why-is-there-a-voltage-offset-at-the…
Hi,
We are planning to use LSF0108QPWRQ1 for bidirectional GPIOs of our processor board, wherein each line can be configured…
Hey,
I would like to use multiple TXS0104E in application where I have 1.8V signal output translated to 5V level, connected via cable to 1 or more TXS0104E as inputs.
In the datasheet…
As communication with the phone, we use TXB0104 to level shift our controller‘s IOs to GDDR6 DRAMs’s JTAG, we found the JTAG link is not stable especially when the G6…
Hello,
I'm looking at the SN74AXC8T245 and SN74AXC4T774. Where in the datasheet can I find the drive current capacity for each output pin? I took a quick look, but was having trouble…
Hi,
According to our measurements the B port rise up when voltage on VCCB is turn on.
The OE in this case connected to GND.
According…
This is a question for both the AVX and the AVC parts.
Hello,
I am looking for a bi-directional level translator that has V_CCA of 1.8V and V_CCB of 3.3V OR 1.8V.
The IO voltage is 1.8V and some applications require 3.3V. I am looking…
I'm looking into use the TXU0304 in an SPI application converting from 1.8V to 2.5-3.3V. Speed of SCK is 32MHz. At a first glance the TXU0304 should be suitable, but when investigating…
Hi myTI support
I want SN74AXC8T245's PSpice model.
Or SN74AXC4T245 or SN74AXC2T245 is fine.
Thanks,
Ueyama
While communicating through the level translator one bit of both MISO and MOSI lines were missing
Hi Sirs;
I need help for SN74AVC4T774RSV.
目前这个器件A port 是3.3V， B port是1.8V，但在使用过程中3.3V会比1.8V早上电。
当3.3V已经上电 1.8V 上电过程中，B2 信号会被传送到A2嘛？
我有做一个实验，在B2给了一个1.8V + 10k的上拉，同时捕获A2 和B2 的信号进行对比…
Hi Team,
We are using "SN74AVC4T774PWR" level translator in our project. We want our circuit should be always enable, so we connected #OE pin to ground through 10K ohm resistor…
Hi ,
In my design I using SN74AVC4T774 between MCU to SPI peripherals.
In my design the inputs of the SN74AVC4T774 are placed in Hi-Z when my MCU is in reset.
In the data sheet of…
Hi team,
My customer mow is using NXP's NXB0108PW.
And now they have a test condition: 5 ns voltage pulse.
Could you please kindly…
