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

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....)

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

FairchildFairchild Semiconductor

仙童半导体飞兆/仙童半导体公司

Synchronous 4-Bit Up/Down Counters with Mode Control

文件:174.74 Kbytes Page:8 Pages

NSCNational Semiconductor (TI)

美国国家半导体美国国家半导体公司

更新时间:2025-9-25 18:00:00
IC供应商 芯片型号 品牌 批号 封装 库存 备注 价格
TI(德州仪器)
23+
13650
公司只做原装正品,假一赔十
MOTOROLA/摩托罗拉
23+
DIP16
30000
原装现货,假一赔十.
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
TI
25+
模块
18000
原厂直接发货进口原装
TI
1824+
DIP16
4000
原装现货专业代理,可以代拷程序
TEXA
24+
DIP16P
6868
原装现货,可开13%税票
TI
25+
DIP
4500
全新原装、诚信经营、公司现货销售!
SN74LS192N
7
7
TI原装现货特价
DIP
1000
原装长期供货!
TI
17+
DIP16
60000
保证进口原装可开17%增值税发票

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