Part Number: TMS320F28379D Other Parts Discussed in Thread: PCF8574A , C2000WARE , ENERGIA , PCF8574 , MSP430G2553 , TCA9534
Hi,
I am using a LaunchXL -F28379D with PCF8574A. For my application, P0-P7 pins are either pulled up or pulled down and I would like…
Part Number: PCF8574A Other Parts Discussed in Thread: TCA9554A We use the subject PCF8574A I/O expander in the SOIC-16 package (DW suffix).
Since they're hard to find, is there a newer more common alternate?
The TCA9554A seems likely, but what is…
Part Number: PCF8574A Hello,
I have seen several posts like this for using PCF8574A to use the Keypad as an I2C peripheral. Some of them are using pullups for the columns and others don't. I have attached my design and I would appreciate the feedback…
Part Number: TCAL9539-Q1 Other Parts Discussed in Thread: PCF8574 , TCA9554 , TCA9554A , TCA9555 , PCF8574A , PCA9554A , PCA9555 , PCA9554 , PCF8575
Tool/software:
Hello Team,
In our design we are going to use TCAL9539RTWRQ1 IC ,we have created the design can…
Part Number: PCF8574A Other Parts Discussed in Thread: TCA9534 Hello,
I successfully communicated with the I / O Expander. However, when I put a pin in output mode in HIGH mode then the measured output voltage is 1.7 and not VCC (5V). Have you found this…
Part Number: PCF8574A I have the PCF8574A chip mounted on a custom bare board. There is an I2C connector, circuit to generate 5V for the I2C I/O chip. The slave address is 0x26. When I try a write and a read I2C transaction, I am getting a NACK back.…
Part Number: PCF8574A Other Parts Discussed in Thread: PCF8575 HI, expert,
Customer have an question,
Customer want to write to data by total 20bit as below.
- Start bit (1bit)
- Slave address (0111 + A2, A1, A0 + 0 + ACK; 8bit + ACK)
- Write Data (Data…
Part Number: PCF8574 Hi,
I have two questions about the PCF8574 device:
1. What are the electrical differences between the PCF8574 and the PCF8574A (beside the address range)? I'm aware of the document scyb031. In one E2E thread I have read that for new…
Part Number: MSP-EXP430FR5969 Other Parts Discussed in Thread: PCF8574A , ENERGIA , PCF8574 hi, please provide me the library file for PCF8574a to support energia,
I2C is working fine but the command for the PCF8574 is not working fine, so please give me …
