NXP? PCF8574T/3,512.? 芯片, 輸入/輸出擴展器, I2C, 8位, 16SOIC
NXP? PCF8574T/3,518? 輸入/輸出擴展, 8bit, 100 kHz, I2C, 2.5 V, 6 V, SOIC
I2C 總線輸入/輸出擴展器,Texas Instruments ### 串行 I/O 擴展器
NXP? PCF8574AT/3,512? 輸入/輸出擴展, 8bit, 100 kHz, I2C, 2.5 V, 6 V, SOIC
TEXAS INSTRUMENTS? PCF8574N? 輸入/輸出擴展, 8bit, 100 kHz, I2C, 2.5 V, 6 V, DIP