型号 功能描述 生产厂家 企业 LOGO 操作

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

Fairchild

仙童半导体

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 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

更新时间:2025-11-4 10:36:01
IC供应商 芯片型号 品牌 批号 封装 库存 备注 价格
TI
25+23+
NA
17808
绝对原装正品全新进口深圳现货
TI
24+
SMD
20000
一级代理原装现货假一罚十
mot
24+
N/A
6980
原装现货,可开13%税票
TW
00+
DIP16
263
全新原装100真实现货供应
HIT
2023+
DIP-16
58000
进口原装,现货热卖
RENESAS/瑞萨
24+
NA/
3295
原装现货,当天可交货,原型号开票
TI
25+
SOP
2650
原装优势!绝对公司现货
RENESAS(瑞萨)/IDT
24+
7350
现货供应,当天可交货!免费送样,原厂技术支持!!!
ON/安森美
18+
SOP-16
12500
全新原装正品,本司专业配单,大单小单都配
TI
24+
DIP
2300

HD74LS221FPEL数据表相关新闻