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:2025-12-30 15:39:01
IC供应商 芯片型号 品牌 批号 封装 库存 备注 价格
FSC
25+
SOP3.9
3200
全新原装、诚信经营、公司现货销售
TI/德州仪器
2450+
NA
9850
只做原装正品现货或订货假一赔十!
FAIRCHILD/仙童
25+
SOP16-5.2MM
600
全新原装正品支持含税
HIT
24+
SOP5.2
80000
只做自己库存 全新原装进口正品假一赔百 可开13%增
TI
1728+
DIP16
6500
只做原装进口,假一罚十
MOTOROLA
25+
TO-220
86720
全新原装进口现货价格优惠 本公司承诺原装正品假一赔
MAT
25+
DIP
880000
明嘉莱只做原装正品现货
HIT
2023+
DIP-16
58000
进口原装,现货热卖
HD
05+
100
原装正品
TI
25+23+
25367
绝对原装正品全新进口深圳现货

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