型号 功能描述 生产厂家 企业 LOGO 操作
SN74LS191NSR.A

SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

Counts 8-4-2-1 BCD or Binary Single Down/Up Count Control Line Count Enable Control Input Ripple Clock Output for Cascading Asynchronously Presettable with Load Control Parallel Outputs Cascadable for n-Bit Applications

TI

德州仪器

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

Fairchild

仙童半导体

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....)

HitachiHitachi Semiconductor

日立日立公司

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

Motorola

摩托罗拉

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

Fairchild

仙童半导体

Synchronous 4-Bit Up/Down Counters with Mode Control

文件:174.74 Kbytes Page:8 Pages

NSC

国半

更新时间:2025-11-21 11:54:00
IC供应商 芯片型号 品牌 批号 封装 库存 备注 价格
TI
23+
SOP16
20000
全新原装假一赔十
TI/德州仪器
22+
DIP16
12245
现货,原厂原装假一罚十!
TI(德州仪器)
2511
8790
电子元器件采购降本30%!原厂直采,砍掉中间差价
SN74LS192N
25+
7
7
TI/德州仪器
23+
DIP
3000
原装正品假一罚百!可开增票!
TI/德州仪器
23+
DIP16
11200
原厂授权一级代理、全球订货优势渠道、可提供一站式BO
ADI
23+
DIP
8000
只做原装现货
TI/德州仪器
2447
DIP16
100500
一级代理专营品牌!原装正品,优势现货,长期排单到货
TI/德州仪器
23+
DIP-16
50000
全新原装正品现货,支持订货
TEXA
24+
DIP16P
6868
原装现货,可开13%税票

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