SN74HC191DE4

計數器 IC 4-Bit Synch Up/Down Binary Counter

SN74HC191DG4

計數器 IC 4B SYNC Up Down Binary Counters

SN74HC191DR

計數器 IC 4-Bit Synch Up/Down Binary Counter

SN74HC191DRE4

計數器 IC 4-Bit Synch Up/Down Binary Counter

SN74HC191DRG4

計數器 IC 4B SYNC Up Down Binary Counters

SN74HC191DT

計數器 IC 4-Bit Synch Up/Down Binary Counter

SN74HC191DTE4

計數器 IC 4-Bit Synch Up/Down Binary Counter

SN74HC191DTG4

計數器 IC 4B SYNC Up Down Binary Counters

SN74HC191N

計數器 IC 4-Bit Sync UpDn Bnry

SN74HC191NE4

計數器 IC 4-Bit Synch Up/Down Binary Counter

SN74HC191NSR

計數器 IC 4-Bit Sync UpDn Bnry

SN74HC191NSRE4

計數器 IC 4-Bit Synch Up/Down Binary Counter