【NXP Semiconductors】74HC390PW,计数器 IC DUAL DECADE RIPPLE COUNTER
【NXP Semiconductors】74HC390PW,112,IC DUAL DEC RIPPLE COUNT 16TSSOP
【NXP Semiconductors】74HC390PW,118,IC DUAL DEC RIPPLE COUNT 16TSSOP
【NXP Semiconductors】74HC390PW-T,计数器 IC DUAL DECADE RIPPLE COUNTER
【NXP Semiconductors】74HC393BQ,115,IC DUAL 4BIT BINAR RIPP 14DHVQFN