Synchronous 4-Bit Up/Down Counter with Mode Control

General Description The DM74LS191 circuit is a synchronous, reversible, up/down counter. Synchronous operation is provided by having all flip-flops clocked simultaneously, so that the outputs change simultaneously when so instructed by the steering logic. This mode of operation eliminates the out

文件：72.73 Kbytes 页数：6 Pages

FairchildFairchild Semiconductor

仙童半导体飞兆/仙童半导体公司

Synchronous Up/Down 4-bit Binary Counters(single clock line)

● Quadrupie 2-Input Positive NAND Gates ● Quadruple 2-Input Positive NAND Gates (with Open Collector Output) (Continue....)

文件：98.42 Kbytes 页数：7 Pages

HitachiHitachi Semiconductor

日立日立公司

Synchronous Up/Down 4-bit Binary Counters(single clock line)

HITACHI

日立

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

PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS The SN54/74LS190 is a synchronous UP/DOWN BCD Decade (8421) Counter and the SN54/74LS191 is a synchronous UP/DOWN Modulo-16 Binary Counter. State changes of the counters are synchronous with the LOW-to-HIGH transit

文件：310.01 Kbytes 页数：10 Pages

Motorola

摩托罗拉