SN74LS191D

計(jì)數(shù)器 IC 4-Bit Sync Up/Down

SN74LS191DE4

計(jì)數(shù)器 IC 4-Bit Sync Up/Down

SN74LS191DG4

計(jì)數(shù)器 IC Sync 4B Up Down Counters

SN74LS191DR

計(jì)數(shù)器 IC 4-Bit Sync Up/Down

SN74LS191DRE4

計(jì)數(shù)器 IC 4-Bit Sync Up/Down

SN74LS191DRG4

計(jì)數(shù)器 IC Sync 4B Up Down Counters

SN74LS191J

SN74LS191N

計(jì)數(shù)器 IC 4-Bit Sync Up/Down

SN74LS191NE4

計(jì)數(shù)器 IC 4-Bit Sync Up/Down

SN74LS191NSR

計(jì)數(shù)器 IC 4-Bit Sync Up/Down

SN74LS191NSRE4

計(jì)數(shù)器 IC 4-Bit Sync Up/Down

SN74LS191NSRG4

計(jì)數(shù)器 IC Sync 4B Up Down Counters