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HD74LS221P規(guī)格書詳情
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.
產(chǎn)品屬性
- 型號:
HD74LS221P
- 制造商:
Panasonic Industrial Company
- 功能描述:
I.C.
供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
---|---|---|---|---|---|---|---|
DIP |
24+ |
NA/ |
100 |
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票 |
詢價 | ||
HITACHI |
1836+ |
DIP16 |
9852 |
只做原裝正品現(xiàn)貨!或訂貨假一賠十! |
詢價 | ||
HIT |
25+ |
QFP |
3200 |
全新原裝、誠信經(jīng)營、公司現(xiàn)貨銷售 |
詢價 | ||
24+ |
DIP |
25 |
詢價 | ||||
HITACHI/日立 |
2410+ |
DIP |
1489 |
原裝正品.假一賠百.正規(guī)渠道.原廠追溯. |
詢價 | ||
TI |
17+ |
HIT |
6200 |
100%原裝正品現(xiàn)貨 |
詢價 | ||
RENESAS |
24+ |
DIP16 |
5000 |
全新原裝正品,現(xiàn)貨銷售 |
詢價 | ||
HIT |
21+ |
DIP16 |
12588 |
原裝正品,自己庫存 假一罰十 |
詢價 | ||
HIT |
23+ |
TSSOP |
5000 |
原裝正品,假一罰十 |
詢價 | ||
RENESAS |
18+ |
DIP-16 |
85600 |
保證進口原裝可開17%增值稅發(fā)票 |
詢價 |