• TCAL9539-Q1: TCAL9539-Q1

  

  N LAXMAN

  TI Thinks Resolved

  Part Number: TCAL9539-Q1 Other Parts Discussed in Thread: TCAL9539 Tool/software: Hello TI, I am using TCAL9539-Q1 for Programmable wakeup, Inputs will be Ignition and CAN. What will be the Input voltage threshold values (VIH, VIL) when GPIO Pins acts…

  • 22 days ago
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Answered

• TCAL9539-Q1: register writing order

  

  lelian cao

  Resolved

  Part Number: TCAL9539-Q1 Other Parts Discussed in Thread: TCAL9539 Tool/software: hi team: We are using TCAL9539-Q1 as IO expander, and occasionally there are some chips have the issue that I2C cannot be found and all output are set to high. In our case…

  • Resolved

  • 1 month ago
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Answered

• TCAL9539-Q1: Questions about tRT, tFT, tTRR_GND and tTRR_POR50.

  

  Leo Ma

  Resolved

  Part Number: TCAL9539-Q1 Tool/software: Hi Expert, Hope you have a nice day! How to understand the tRT, tFT, tTRR_GND and tTRR_POR50? Is my understanding right as below? tRT, tFT (in red rectangular) are the features of TCAL9539-Q1 itself, that…

  • Resolved

  • 1 month ago
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Answered

• TCAL9539-Q1: I2C communication failure

  

  Leo Ma

  Resolved

  Part Number: TCAL9539-Q1 Other Parts Discussed in Thread: TCAL9539 Tool/software: Hi Expert, Have a nice day! Customer use TCAL9539-Q1 and find some issues need your help. Issue: When the MCU meet I2C communication failure (Such as I2C busy), then…

  • Resolved

  • 1 month ago
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Answered

• TCAL9539-Q1: Does TI have IO Expander support Clock Stretching?

  

  Leo Ma

  Resolved

  Part Number: TCAL9539-Q1 Tool/software: Hi Expert, Have a nice day. Does TI have IO Expander support Clock Stretching? Thanks! Best, Leo

  • Resolved

  • 1 month ago
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• TCAL9539-Q1: Valid Operation for I2C General Call Write Usage for TMAG5173-Q1

  

  Egemen Aksoy

  Answer Suggested

  Part Number: TCAL9539-Q1 Other Parts Discussed in Thread: TMAG5173-Q1 , , TCAL9539 Tool/software: Hello, We are using multiple TMAG5173-Q1 and a single TCAL9539-Q1 IC on the same I2C bus in our project. If we start the measurement simultaneously on all…

  • 1 month ago
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• TCA39306-Q1: Design support for interfacing of I2C between MCU and I/O Expander TCAL9539-Q1 with different voltage level

  

  N LAXMAN

  TI Thinks Resolved

  Part Number: TCA39306-Q1 Other Parts Discussed in Thread: TCAL9539-Q1 , Tool/software: Hi, Good day. Application is that Programmable wakeup from (1. Ignition, 2. Secondary wake up and CAN Wake). I2C Communication has to be established between MCU and …

  • 1 month ago
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Answered

• TCAL9539-Q1: What is the I/O state during I2C error?

  

  Leo Ma

  Resolved

  Part Number: TCAL9539-Q1 Tool/software: Hi expert, Have a nice day! About TCAL9539-Q1, what are the I/O states during I2C error or other fault cases? Is that Hi-Z, low or other? Best Wishes, Leo Ma

  • Resolved

  • 3 months ago
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Answered

• TCAL9539-Q1: Digital input level

  

  ? ??

  Resolved

  Part Number: TCAL9539-Q1 Other Parts Discussed in Thread: TCAL9539 Tool/software: Hello experts, In document of TCAL9539-Q1, the digital input levels are not described at the recommended operation conditions chapter. In document of TCA6408-Q1, the digital…

  • Resolved

  • 5 months ago
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• TCAL9539-Q1: Sink-Source Current to Supply Magnetometer Sensor

  

  Egemen Aksoy

  TI Thinks Resolved

  Part Number: TCAL9539-Q1 Other Parts Discussed in Thread: TMAG5173-Q1 Tool/software: Hello, We shall use TCAL9539-Q1 I/O expander's pins to supply TMAG5173B2QDBVRQ1 in our design. TCAL9539-Q1 I/O shall be supplied a total of 16 TMAG5173B2QDBVRQ1. …

  • 5 months ago
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