【NXP Semiconductors】74HC191PW,112,IC 4BIT BINARY UP/DN CNT 16TSSOP
【NXP Semiconductors】74HC191PW,118,IC 4BIT BINARY UP/DN CNT 16TSSOP
【NXP Semiconductors】74HC193D,652,IC COUNTER UP/DOWN SYNC 16SOIC
【NXP Semiconductors】74HC193D,653,IC 4BIT BINAR UP/DN COUNT 16SOIC
【NXP Semiconductors】74HC193DB,计数器 IC 4BIT BIN UP/DN CNTER SYNCHRONOUS