型号 功能描述 生产厂家 企业 LOGO 操作
HD74LS221RPEL

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

更新时间:2025-10-2 20:00:00
IC供应商 芯片型号 品牌 批号 封装 库存 备注 价格
HITACHI/日立
24+
NA/
33
优势代理渠道,原装正品,可全系列订货开增值税票
RENESAS/瑞萨
24+
SOP5.2
880000
明嘉莱只做原装正品现货
HITACHI
05+
DIP
1350
HIT
25+
QFP
3200
全新原装、诚信经营、公司现货销售
HIT
24+
DIP
191
HITACHI/日立
2402+
DIP14
8324
原装正品!实单价优!
HIT
23+
DIP-20
5000
原装正品,假一罚十
RENESAS/瑞萨
24+
SOP5.2
9600
原装现货,优势供应,支持实单!
HITACHI
2023+
SOP-20
50000
原装现货
HIT
88+
DIP
273
原装正品

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