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  • PCF8575 크랙: [PCF8575 ]If there is a default pull-down resistor in output mode

    Resolved
    Part Number: PCF8575 Other Parts Discussed in Thread: TCA9535 , PCA9535 VCC 3.3V 입력, 포트는 출력 모드로 사용 중이다. 출력 라인에 기본 풀다운 저항(10Kohm)이 있는 경우 높은 출력 레벨은 3.3V가 아닌 약 2V 레벨로 출력됩니다. 무엇이 문제일까요?
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    • Answered

  • PCF8575: Pin Output Power Consumption

    Resolved
    Part Number: PCF8575 For PCF8575, how to estimate the power consumption of the pins, which are used as output GPIO? Is Ioh the parameter to use? In the data sheet, Ioh appears in several places with different value: 6.1: -4mA +-100mA (so big?) 6.3:…
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  • PCF8575: Use PCF8575 as input

    TI Thinks Resolved
    Part Number: PCF8575 Dears, Thanks for your support in advance. 1. Below is the Block Diagram of PCF8575 from datasheet( I marked 1,2,3 three MOSFETS,), in my understanding this P-port is push-pull output (MOSFET2 and MOSFET3), my question is: when configure…

  • RE: PCF8575: FLT voltage level connected to TPS26625

    Hi Bobby Thank you for the reply. Yes. I found the root cause of the problem. We have connected a pull-up resistor on the line between the TPS26625 and the PCF8575. This pull-up resistor is falsly connected to 3.3V and this caused the wrong voltage level…

  • TPS2662: FLT voltage level connected to PCF8575

    TI Thinks Resolved
    Part Number: TPS2662 Other Parts Discussed in Thread: PCF8575 Hello I have a custom board on which the FLT pin of the TPS26625 is directly connected to an IO-Expander PCF8575 input. There is no additional resistor in line or a pull-up or pull-down resistor…
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  • PCF8575: HTOL Test Result

    Resolved
    Part Number: PCF8575 Hi, HTOL is not mentioned in the reliability test results. I have no doubt that the test result is "PASS", but I need to answer the customer. Could you please provide the following information? "Min lot qty" "SS / lot" "Condition…
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  • PCF8575: what is reading slave address

    Resolved
    Part Number: PCF8575 Other Parts Discussed in Thread: C2000WARE , Hello, I am developing the driver for IO expander PCF8575. The spec says the writing address is 0x40 and the reading address is 0x41. But I scanned the I2C device and got the slave address…
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  • PCF8575: PCF8575

    Resolved
    Part Number: PCF8575 In our products we use PCF8575PW, but due to unavailability am not able to find the part. What is difference between PCF8575.PCF8575C,PCF8575D ? Can you suggest PCF8575 replacement ?
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  • PCF8575: PCF8575 Markings Decoding

    TI Thinks Resolved
    Part Number: PCF8575 I am trying to determine the markings on a pair of PCF8575 IC's to confirm if they are functionally equivalent. Both are TSSOP-24 packages. One IC is marked PF575 13G4 A8GH The other is marked PF575 OBG4 A3KQ I understand the…

  • PCF8575: Clarification of Individual Pin's Input and Output Mode

    Part Number: PCF8575 I have a few questions: First, what's the default mode of all the pins P0-P7 and P10-P17 after powered up. Second, it is about the pins' mode. Based on the description in section 8.4, Device Functional Mode, of its data sheet…

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