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HD74LS221中文资料
HD74LS221数据手册规格书PDF详情
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 input circuitry (TTL hysteresis) for B input allows jitter-free triggering from inputs with transition rates as slow as 1 V/s, providing the circuit with excellent noise immunity of typically 1.2 V. A high immunity to VCC noise of typically 1.5 V is also provided by internal latching circuitry. Once fired, the outputs are independent of further transitions of the A and B inputs and are a function of the timing components, or the output pulses can be terminated by the overriding clear. Input pulses may be of any duration relative to the output pulse. Output rise and fall times are TTL compatible and independent of pulse length.
Typical triggering and clearing sequence are illustrated as a part of the switching characteristics waveforms. Pulse width stability is achieved through internal compensation and is virtually independent of VCC and temperature.
HD74LS221产品属性
- 类型
描述
- 型号
HD74LS221
- 制造商
Panasonic Industrial Company
- 功能描述
I.C.
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
RENESAS |
2014+ |
300 |
公司现货库存 |
||||
RENESAS |
23+ |
原厂原装 |
50000 |
全新原装正品现货,支持订货 |
|||
RENESAS |
2019 |
原厂原装 |
45 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
|||
RENESAS |
18+ |
DIP-16 |
85600 |
保证进口原装可开17%增值税发票 |
|||
RENESAS |
23+ |
DIP16 |
59128 |
##公司主营品牌长期供应100%原装现货可含税提供技术 |
|||
RENESAS |
23+ |
DIP16 |
8560 |
受权代理!全新原装现货特价热卖! |
|||
RENESAS |
20+ |
DIP16 |
7909 |
进口原装现货,假一赔十 |
|||
RENESAS |
24+ |
DIP16 |
5000 |
全新原装正品,现货销售 |
|||
RENESAS |
24+ |
DIP16 |
5000 |
只有原装 |
|||
RENESAS |
25+ |
DIP16 |
8800 |
公司只做原装,详情请咨询 |
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