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型号 功能描述 生产厂家 企业 LOGO 操作
HD74LS191P

Synchronous Up / Down 4-bit Binary Counter (single clock line)

Synchronous Up / Down 4-bit Binary Counter (single clock line) Synchronous operation is provided by having all flip-flops clocked simultaneously so that the steering logic. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple clock) counters.

RENESAS

瑞萨

HD74LS191P

Synchronous Up / Down 4-bit Binary Counter (single clock line)

RENESAS

瑞萨

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

替换型号 功能描述 生产厂家 企业 LOGO 操作

Synchronous 4-Bit Up/Down Counter with Mode Control

FAIRCHILD

仙童半导体

Synchronous 4-Bit Up/Down Counters with Mode Control

NSC

国半

Ouadruple 2-input Positive NAND Gates

HITACHIHitachi Semiconductor

日立日立公司

Synchronous Up / Down 4-bit Binary Counter (single clock line)

RENESAS

瑞萨

Synchronous Up/Down 4-bit Binary Counters(single clock line)

HITACHIHitachi Semiconductor

日立日立公司

SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

TI

德州仪器

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

MOTOROLA

摩托罗拉

SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

TI

德州仪器

HD74LS191P产品属性

  • 类型

    描述

  • 型号

    HD74LS191P

  • 制造商

    Renesas Electronics

  • 功能描述

    74LS Counter

  • 制造商

    Renesas Electronics

  • 功能描述

    74LS Counter Bulk

更新时间:2026-8-3 11:28:00
IC供应商 芯片型号 品牌 批号 封装 库存 备注 价格
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01+
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21
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23+
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10000
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2700
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35772
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DIP
59126
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4580
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