Answered

• PCA9539: Write problem

  

  sagar shah54

  Resolved

  Part Number: PCA9539 Other Parts Discussed in Thread: TCA9539 When I am trying to write the registers of PCA after 100us delay, It hangs and stops at while (I2caRegs.I2CSTR.bit.SCD != 1) {} that is Stop condition is not detected. I am using 28379D to communicate…

  • Resolved

  • over 6 years ago
  • Interface
  • Interface forum
Answered

• PCA9539: Protection against output short to gnd fault?

  

  Cassidy

  Resolved

  Part Number: PCA9539 Hi, If an output port is configured to output HIGH will this part experience damage if an external fault shorts this output to GND? Is there any internal protection against this? If there is protection is it only spec'd for a limited…

  • Resolved

  • over 6 years ago
  • Interface
  • Interface forum
Answered

• PCA9539: Reliability Issue

  

  Ke Su

  Resolved

  Part Number: PCA9539 Other Parts Discussed in Thread: TCA9539 , TCA9539-Q1 Is PCA9539 commercial part? any automatic or EP part (higher reliability grade part) available? Could anyone share the Qual report for this part? 　 Thanks, 　 Ke

  • Resolved

  • over 6 years ago
  • Interface
  • Interface forum
Answered

• DLPC7540EVM: Problem where LED D6 lights up red when the power is turned on.

  

  笹岡 孝至

  Resolved

  Part Number: DLPC7540EVM Other Parts Discussed in Thread: DLPC7540 , PCA9539 , DLPA100 , DLP650TE Hello We set up the purchased DLPC7540EVM and DPL650TEEVM according to the user guide. I confirmed that I ran the Quick Start in Section 2 in order and completed…

  • Resolved

  • 11 months ago
  • DLP®︎ products
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• DLPC7540EVM: USB connection

  

  笹岡 孝至

  TI Thinks Resolved

  Part Number: DLPC7540EVM Other Parts Discussed in Thread: DLP471TEEVM , DLP650TEEVM , , DLPC7540 , PCA9539 , DLPA100 , TXS0102 We have connected between boards and PCs by using USB according to the user's guide. However, it is not recognized by GUI software…

  • over 1 year ago
  • DLP®︎ products
  • DLP products forum

• PCA9539: I/O pin characteristics the same as SCL and SDA pins?

  

  Cassidy

  TI Thinks Resolved

  Part Number: PCA9539 For the PCA9539, the Vol plot is shown in Figure 4 in Section 6.8 and is labeled for I/O pins. I need to know if that also applies to the I2C pins (SDA and SCL). Thank you!

  • over 6 years ago
  • Interface
  • Interface forum

• RE: TCAL9539-Q1: ROTS Driver Inquiry

  

  Clemens Ladisch

  There is no driver. The first eight registers are backwards compatible with the TCA9539/PCA9539.

  • over 1 year ago
  • Interface
  • Interface forum
Answered

• PCA9539: Reset Function

  

  David Schanin

  Resolved

  Part Number: PCA9539 Other Parts Discussed in Thread: TCA9539 Seems that all of the I2C I/O expander parts have these tight power supply power-up requirements which if violated will cause the part to lock up, per the description. I am using this part…

  • Resolved

  • over 7 years ago
  • Interface
  • Interface forum
Answered

• DLPC7540EVM: LED PWM RED signal output is not output

  

  笹岡 孝至

  Resolved

  Part Number: DLPC7540EVM Other Parts Discussed in Thread: PCA9539 , DLPA100 , DLPC7540 , DLP650TE Hello We set up the purchased DLPC7540EVM and DPL650TEEVM according to the user guide. I confirmed that I ran the Quick Start in Section 2 in order and completed…

  • Resolved

  • 11 months ago
  • DLP®︎ products
  • DLP products forum

• TCAL9539: TCAL9539

  

  Eugene Yeh

  Answer Suggested

  Part Number: TCAL9539 Other Parts Discussed in Thread: PCA9539 , TCA9539 Hello, Does TCAL9539 have any sample code for reference? Thanks.

  • over 1 year ago
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  • Interface forum

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