型号 功能描述 生产厂家 企业 LOGO 操作
SN74LS191DR.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:2025-11-20 11:40:00
IC供应商 芯片型号 品牌 批号 封装 库存 备注 价格
MOT
06+
PDIP
1000
自己公司全新库存绝对有货
TI/德州仪器
2023+
DIP16
6000
一级代理优势现货,全新正品直营店
TI(德州仪器)
2021+
PDIP-16
499
TI
23+
DIP-16
8560
受权代理!全新原装现货特价热卖!
TI
98+
DIP
45
原装
24+
N/A
82000
一级代理-主营优势-实惠价格-不悔选择
ADI
23+
DIP
8000
只做原装现货
TI/德州仪器
23+
SOIC-16
50000
全新原装正品现货,支持订货
TI
18+
DIP-16
85600
保证进口原装可开17%增值税发票
TI
21+
DIP
1523
公司现货,不止网上数量!原装正品,假一赔十!

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