型号 功能描述 生产厂家 企业 LOGO 操作
HD74LS221

Dual Monostable Multivibrators

● 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

HD74LS221

Dual Monostable Multivibrators

This multivibrator features a negative-transition-triggered input and a positive-transition-triggered input either of which can be used as an inhibit input. Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input pulse. Schmitt-trigger

RENESAS

瑞萨

HD74LS221

Ouadruple 2-input Positive NAND Gates

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HitachiHitachi Semiconductor

日立日立公司

HD74LS221

Dual Monostable Multivibrators

RENESAS

瑞萨

HD74LS221

Dual Monostable Multivibrators

HitachiHitachi Semiconductor

日立日立公司

Dual Monostable Multivibrators

This multivibrator features a negative-transition-triggered input and a positive-transition-triggered input either of which can be used as an inhibit input. Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input pulse. Schmitt-trigger

RENESAS

瑞萨

Dual Monostable Multivibrators

This multivibrator features a negative-transition-triggered input and a positive-transition-triggered input either of which can be used as an inhibit input. Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input pulse. Schmitt-trigger

RENESAS

瑞萨

74LS221 Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs

General Description The DM74LS221 is a dual monostable multivibrator with Schmitt-trigger input. Each device has three inputs permitting the choice of either leading-edge or trailing-edge triggering. Pin (A) is an active-LOW trigger transition input and pin (B) is an active-HIGH transition Sc

SYC

LOW POWER SCHOTTKY

Dual Monostable Multivibrators with Schmitt-Trigger inputs • SN74LS221 is a Dual Highly Stable One-Shot • Overriding Clear Terminates Output Pulse • Pin Out is Identical to SN74LS123

ONSEMI

安森美半导体

Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs

General Description The DM74LS221 is a dual monostable multivibrator with Schmitt-trigger input. Each device has three inputs permitting the choice of either leading-edge or trailing-edge triggering. Pin (A) is an active-LOW trigger transition input and pin (B) is an active-HIGH transition Schm

FairchildFairchild Semiconductor

仙童半导体飞兆/仙童半导体公司

DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS

DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS Each multivibrator of the LS221 features a negative-transition-triggered input and a positive-transition-triggered inputeither of which can be used as an inhibit input. Pulse triggering occurs at a voltage level and is not related

Motorola

摩托罗拉

LOW POWER SCHOTTKY

Dual Monostable Multivibrators with Schmitt-Trigger inputs • SN74LS221 is a Dual Highly Stable One-Shot • Overriding Clear Terminates Output Pulse • Pin Out is Identical to SN74LS123

ONSEMI

安森美半导体

替换型号 功能描述 生产厂家 企业 LOGO 操作

Dual non-retriggerable monostable multivibrator with reset

Philips

飞利浦

Dual Non-Retriggerable Monostable Multivibrator

FairchildFairchild Semiconductor

仙童半导体飞兆/仙童半导体公司

Dual Monostable Multivibrators (with Schmitt Trigger Input)

HitachiHitachi Semiconductor

日立日立公司

High Speed CMOS Logic Dual Monostable Multivibrator with Reset

TI

德州仪器

LOW POWER SCHOTTKY

ONSEMI

安森美半导体

Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs

FairchildFairchild Semiconductor

仙童半导体飞兆/仙童半导体公司

LOW POWER SCHOTTKY

ONSEMI

安森美半导体

DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS

TI

德州仪器

DUAL MONOSTABLE MULTIVIBRATPORS WITH SCHMITT-TRIGGER INPUTS

TI

德州仪器

DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS

TI

德州仪器

HD74LS221产品属性

  • 类型

    描述

  • 型号

    HD74LS221

  • 制造商

    Panasonic Industrial Company

  • 功能描述

    I.C.

更新时间:2025-10-2 16:38:00
IC供应商 芯片型号 品牌 批号 封装 库存 备注 价格
HIT
25+
SOP-16
3200
全新原装、诚信经营、公司现货销售
24+
DIP
25
TI
HIT
100
正品原装--自家现货-实单可谈
HITACHI/日立
2410+
DIP
1489
原装正品.假一赔百.正规渠道.原厂追溯.
HITACHI/日立
24+
DIP16
33487
郑重承诺只做原装进口现货
RENESAS
24+
DIP16
5000
全新原装正品,现货销售
RENESAS
2014+
300
公司现货库存
TI
17+
HIT
6200
100%原装正品现货
RENESAS
原厂封装
9800
原装进口公司现货假一赔百
HIT
23+
TSSOP
5000
原装正品,假一罚十

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