四位2进制同步可逆计数器

TS871

天水天光

PRESETTABLE BCD/DECADE PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS

TheSN54/74LS190 is asynchronous UP/DOWN BCD Decade (8421) Counterand the SN54/74LS191is a synchronous UP/DOWN Modulo-16 BinaryCounter. State changes of the counters are synchronous with the LOW-to-HIGH transition of the Clock Pulse input.

恩XP

Synchronous 4-Bit Up/Down Counters with Mode Control

文件：174.74 Kbytes 页数：8 Pages

NSC

国半

Synchronous 4-Bit Up/Down Counters with Mode Control

文件：174.74 Kbytes 页数：8 Pages

NSC

国半

Synchronous 4-Bit Up/Down Counters with Mode Control

文件：174.74 Kbytes 页数：8 Pages

NSC

国半