• TCA6408A-Q1: TCA6408A-Q1

  

  Jitendra rana

  TI Thinks Resolved

  Part Number: TCA6408A-Q1 Tool/software: Hi Team, Regarding - TCA6408ARGTR i2c based IO expander Please confirm one thing, after configuration all GPIO by MCU, GPIO status will remain same after supply on/off??. Thanks, Jitendra

  • 5 months ago
  • Interface
  • Interface forum
Answered

• TCA6408A: TCA6408A

  

  Vidhya J

  Resolved

  Part Number: TCA6408A Tool/software: Hi Team, If I have to use 3 of these IO expanders, can interrupts be shorted together and give as single input to CPU? Thanks, Vidhya

  • Resolved

  • 11 months ago
  • Interface
  • Interface forum
Answered

• TCA6408A: TCA6408A UQFN case drawing

  

  YURII LAHOIDYCH

  Resolved

  Part Number: TCA6408A Tool/software: Hello. The datasheet for TCA6408ARSVR does not contain RSV-16 (16-UFQFN) package drawing. Is it possible to fix this error? I can see only CAD models? but it's nit enough.

  • Resolved

  • 10 months ago
  • Interface
  • Interface forum

• TCA6408A: Interface timing requirements

  

  Min Hisen Kao

  TI Thinks Resolved

  Part Number: TCA6408A Hi Support team We use the TI I2C EXP TCA6408ARSVR and implement the SI measurement. We checked the spec and found the criteria of fall time as below; It shows the I2C spec is 20+0.1Cb~300ns. As I know the latest I2C spec is (20…

  • 7 days ago
  • Interface
  • Interface forum

• TCA6408A: Ambiguous information on connection of ADDR select pin

  

  Marvn Arcangel

  TI Thinks Resolved

  Part Number: TCA6408A Hi Experts, I would like to confirm the correct connection for ADDR pin. The datasheet states in table 5-1 Pin Functions (page 3) that ADDR should be connected to VccP or ground. This information is repeated elsewhere in the…

  • 25 days ago
  • Interface
  • Interface forum

• TCA6408A: Can't read correct register value after sending cmd

  

  Richard Liu

  TI Thinks Resolved

  Part Number: TCA6408A Tool/software: after reset, I read registers 0x1 and 0x3 and the values ​​are 0x1 and 0x0. those are different from the TCA6408A datasheet. and even I set P4 high (measure by the pad, it actually high), the value of register 0x3…

  • 2 months ago
  • Interface
  • Interface forum
Answered

• TCA6408A: schmatic review

  

  Sky Kao

  Resolved

  Part Number: TCA6408A Tool/software: Let me double confirm TCA6408ARSVR, if P7 pin setting out put Push-Pull mode , we have not pull down resistor between P7 and MOSFET G pin. When V3P3 drop, does it any concern or not?

  • Resolved

  • 8 months ago
  • Interface
  • Interface forum

• TCA6408A: I2C program

  

  zhang ping

  Part Number: TCA6408A Tool/software: We are debugging with TCA6408A and TMS320F28388, and encountered communication abnormalities. Do you have any relevant configurations and read-write routines for us to test?

  • 9 months ago
  • Interface
  • Interface forum

• TCA6408A: TCA6408APWR

  

  syed S

  TI Thinks Resolved

  Part Number: TCA6408A Tool/software: Hi TI team, Im planning to use the TCA6408APWR as IO expander with vcc=1.8v, while doing DC analysis the VOH, VOL values are not available for the VCC=1.8V in the datasheet, due to which DC is failing if i take Values…

  • over 1 year ago
  • Interface
  • Interface forum

• TCA6408A: TCA6408APWR

  

  syed S

  TI Thinks Resolved

  Part Number: TCA6408A Tool/software: Hi TI team, Im planning to use the TCA6408APWR as IO expander with vcc=1.8v, while doing DC analysis the VOH, VOL values are not available for the VCC=1.8V in the datasheet, due to which DC is failing if i take Values…

  • over 1 year ago
  • Interface
  • Interface forum

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