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型号 功能描述 生产厂家 企业 LOGO 操作
DM74LS191M

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

DM74LS191M

Synchronous 4-Bit Up/Down Counters with Mode Control

文件:174.74 Kbytes Page:8 Pages

NSC

国半

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

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 UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

文件:512.63 Kbytes Page:14 Pages

TI

德州仪器

SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

文件:512.63 Kbytes Page:14 Pages

TI

德州仪器

SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

文件:512.63 Kbytes Page:14 Pages

TI

德州仪器

更新时间:2026-5-25 8:14:00
IC供应商 芯片型号 品牌 批号 封装 库存 备注 价格
onsemi(安森美)
25+
SOP16
3238
原装现货,免费供样,技术支持,原厂对接
onsemi(安森美)
25+
SOIC-16
18746
样件支持,可原厂排单订货!
Fairchild Semiconductor
24+25+
16500
全新原厂原装现货!受权代理!可送样可提供技术支持!
TI/德州仪器
25+
SOP16
32360
TI/德州仪器全新特价DM74LS191MX即刻询购立享优惠#长期有货
METHODEELECT
23+
65480
原厂
25+
2500
百分百原装正品 真实公司现货库存 本公司只做原装 可
26+
N/A
64000
一级代理-主营优势-实惠价格-不悔选择
Rochester
25+
电联咨询
7800
公司现货,提供拆样技术支持
NATIONALSEMI
05+
原厂原装
4243
只做全新原装真实现货供应
FSC/ON
23+
原包装原封 □□
6428
原装进口特价供应 特价,原装元器件供应,支持开发样品 更多详细咨询 库存

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