  | PCA8574 |  | Remote 8-bit I/O expander for I2C-bus with interrupt |
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| | PCA8574A | | Remote 8-bit I/O expander for I2C-bus with interrupt |
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| | PCA8575 |  | Remote 16-bit I/O expander for I2C-bus with interrupt |
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| | PCA9500 | | 8-Bit I2C I/O Port with 2-Kbit EEPROM |
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| | PCA9501 | | 8-Bit I2C I/O Port with Interrupt, 2-Kbit EEPROM, and Six Address Pins |
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| | PCA9502 | | 8-bit I/O expander for I2C/SPI bus |
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| | PCA9505 | | 40-bit I2C I/O port with reset, output enable, interrupt, and 100kΩ pull-up resistors |
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| | PCA9506 | | 40-bit I2C I/O port with reset, output enable, and interrupt |
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| | PCA9534 | | 8-Bit I2C Low Power I/O Port with Interrupt |
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| | PCA9535 | | 16-Bit I2C Low Power I/O Port with Interrupt |
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| | PCA9535C | | 16-Bit I2C Low Power I/O Port with Interrupt and Open Drain Outputs |
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| | PCA9536 | | 4-bit I2C I/O port |
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| | PCA9537 | | 4-bit I2C low power I/O port with interrupt and reset |
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| | PCA9538 | | 8-bit I2C low power I/O port with interrupt and reset |
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| | PCA9539 | | 16-bit I2C and SMBus low-power I/O port with interrupt and device/register reset |
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| | PCA9539R |  | 16-bit I2C and SMBus low-power I/O port with interrupt and device-only reset |
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| | PCA9554 | | 8-Bit I2C I/O Port with Interrupt |
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| | PCA9554A | | 8-Bit I2C I/O Port with Interrupt |
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| | PCA9555 | | 16-Bit I2C I/O Port with Interrupt |
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| | PCA9556 | | Not recommended for new designs; See PCA9557 |
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| | PCA9557 | | 8-Bit I2C I/O Port with Reset |
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| | PCA9558 | | 5-Bit Multiplexed/1-Bit Latched 6-Bit I2C EEPROM and Octal SMBus Registered Interface with 256-Byte I2C EEPROM |
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| | PCA9574 | | 8-bit I2C-bus and SMBus, level translating, low voltage GPIO with reset and interrupt |
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| | PCA9670 | | Remote 8-bit I/O expander for Fm+ I2C-bus with reset |
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| | PCA9671 | | Remote 16-bit I/O expander for Fm+ I2C-bus with reset |
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| | PCA9672 | | Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt and reset |
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| | PCA9673 | | Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and reset |
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| | PCA9674 | | Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt |
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| | PCA9674A | | Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt |
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| | PCA9675 | | Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt |
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| | PCA9698 | | 40-bit Fm+ I2C advanced I/O port with reset, output enable, and interrupt |
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| | PCA9701 | | 18V tolerant SPI 16-bit GPI with interrupt |
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| | PCA9702 | | 18V tolerant SPI 8-bit GPI with interrupt |
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| | PCF8574 | | Remote 8-Bit I/O Expander for I2C Bus |
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| | PCF8574A | | Remote 8-Bit I/O Expander for I2C Bus with Alternate Slave Address |
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| | PCF8575 | | Remote 16-Bit I/O Expander for I2C Bus |
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| | PCF8575C | | Remote 16-Bit I/O Expander for I2C Bus |
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