【NXP Semiconductors】PCF8570TD,静态随机存取存储器 256X8-BIT CMOS RAM/I2C BUS
【Texas Instruments】PCF8574ADGVR,IC I/O EXPANDER I2C 8B 20TVSOP
【Texas Instruments】PCF8574ADGVRE4,IC I/O EXPANDER I2C 8B 20TVSOP
【Texas Instruments】PCF8574ADGVRG4,IC I/O EXPANDER I2C 8B 20TVSOP
【Texas Instruments】PCF8574ADWE4,IC I/O EXPANDER I2C 8B 16SOIC
【Texas Instruments】PCF8574ADWG4,IC I/O EXPANDER I2C 8B 16SOIC
