Answered

• SN74HC138: Y5/Y6Y7 output level behavior

  

  Henry Wang3

  Resolved

  Part Number: SN74HC138 Tool/software: Hi Sir, My customer found that the SN74HC138 Y5/Y6/Y7 output level does not follow the function table change level when C=1, B=0 to 1; A=1 to 0. Could you review the related waveform on attachment and provide…

  • Resolved

  • 12 days ago
  • Logic
  • Logic forum
Answered

• SN74HC138: What is the difference between the PWT (obsoleted on digikey) and the PWR variants?

  

  Anirudh Nair

  Resolved

  Part Number: SN74HC138 Tool/software: What is the difference between the SN74HC138PWT (obsoleted on DigiKey) and the SN74HC138PWR variants? They seem to be the exact same but I would like to confirm any changes made between them. Thanks!

  • Resolved

  • over 1 year ago
  • Logic
  • Logic forum

• SN74HC138: SN74HC138D vs SN74HC138DR

  

  Roberto Yergas

  TI Thinks Resolved

  Part Number: SN74HC138 Good morning! I received a few days ago a PDN ( 20230420004.3 ) for several Texas Instruments P/Ns with small packages that were becoming obsolete, for example P/N SN74HC138D. The direct alternate for P/N SN74HC138D seems…

  • over 2 years ago
  • Logic
  • Logic forum
Answered

• SN74HC138: SN74HC138DR vs SN74HC138BDR

  

  Chase7071949597

  Resolved

  Part Number: SN74HC138 Is there a difference between the 138DBR and the 138DR?

  • Resolved

  • over 3 years ago
  • Logic
  • Logic forum
Answered

• SN74HC138: Difference between SN74HC138A

  

  Tsukui Yusuke

  Resolved

  Part Number: SN74HC138 Hi, Could you please let me know the difference between SN74HC138 and SN74HC138A? From the datasheet, I understood that the SN74HC138A is higher switching characteristics version. And these device is same device. Difference is test…

  • Resolved

  • over 5 years ago
  • Logic
  • Logic forum

• RE: SN74HC138: About SN74HC series FMEA information

  

  Clemens Ladisch

  TI makes FMEA analyses only for safety-critical devices. The following is an unofficial FMEA analysis for all HC/HCT devices . class A: possible damage to device; likely affects application functionality class B: no damage; possibly affects application…

  • over 5 years ago
  • Logic
  • Logic forum

• SN74HC138: IBIS model for SN74HC138NS, SN74HC139NS

  

  Kazusa Suzuki

  TI Thinks Resolved

  Part Number: SN74HC138 Other Parts Discussed in Thread: SN74HCS138 , , SN74HC00 , SN74HCS00 , SN74HCS139 Hello do we have IBIS model for the SN74HC138NS, SN74HC139NS? best regards, kazusa suzuki

  • over 5 years ago
  • Logic
  • Logic forum

• SN74HC138: Propagation delay estimate for 3.3V supply

  

  M.A.M

  TI Thinks Resolved

  Part Number: SN74HC138 Hi, My customer wants to estimate what propagation delay might be most likely for 3.3V supply voltage. Let's say the Tpd_Max values over temp range, for ABC to Y, EN to Y and IN to Y. We can just assume that the Tpd curves are…

  • over 5 years ago
  • Logic
  • Logic forum
Answered

• SN74HC138 thermal parameter

  

  Mike Wang2

  Resolved

  Other Parts Discussed in Thread: SN74HC138 Hi team, Could you please provide the Junction-to-case thermal resistance of SN74HC138? we don't spec it in datasheet. Thanks BR, Mike

  • Resolved

  • over 8 years ago
  • Logic
  • Logic forum
Answered

• CD74hc138 vs SN74hc138

  

  Shelly Dodge

  Resolved

  Other Parts Discussed in Thread: CD74HC138 , SN74HC138 Hello! Is there anything that shows if the CD74hc138 and the SN74hc138 are exactly the same or what differences they may have? thank you!

  • Resolved

  • over 14 years ago
  • Logic
  • Logic forum

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