具有双时钟和清零功能的同步 4 位加/减二进制计数器

XINLUDA

信路达

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

TheSN54/74LS192 is an UP/DOWN BCD Decade (8421) Counter and the SN54/74LS193 is an UP/DOWN MODULO-16 Binary Counter. Separate CountUp and Count Down Clocks are used and in either counting mode the circuits operate synchronously. The outputs change state synchronous with the LOW-to-HIGH transitions

文件：276.15 Kbytes 页数：9 Pages

MOTOROLA

摩托罗拉

Synchronous Up/Down 4-bit Binary Counters(dual clock lines)

Synchronous Up/Down 4-bit Binary Counter with Dual Clock Lines

文件：104.88 Kbytes 页数：7 Pages

HITACHIHitachi Semiconductor

日立日立公司

Synchronous 4-Bit Binary Counter with Dual Clock

General Description The DM74LS193 circuit is a synchronous up/down 4-bit binary counter. Synchronous operation is provided by hav ing all flip-flops clocked simultaneously, so that the outputs change together when so instructed by the steering logic. This mode of operation eliminates the output

文件：74.02 Kbytes 页数：7 Pages

FAIRCHILD

仙童半导体