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74MMC221N中文資料仙童半導(dǎo)體數(shù)據(jù)手冊(cè)PDF規(guī)格書

74MMC221N
廠商型號(hào)

74MMC221N

功能描述

Dual Monostable Multivibrator

文件大小

65.019 Kbytes

頁面數(shù)量

6

生產(chǎn)廠商

FAIRCHILD Fairchild Semiconductor

中文名稱

仙童半導(dǎo)體 飛兆/仙童半導(dǎo)體公司

網(wǎng)址

網(wǎng)址

數(shù)據(jù)手冊(cè)

下載地址一下載地址二到原廠下載

更新時(shí)間

2025-8-22 11:17:00

人工找貨

74MMC221N價(jià)格和庫存,歡迎聯(lián)系客服免費(fèi)人工找貨

74MMC221N規(guī)格書詳情

General Description

The MM74C221 dual monostable multivibrator is a monolithic complementary MOS integrated circuit. Each multivibrator features a negative-transition-triggered input and a positive-transition-triggered input, either of which can be used as an inhibit input, and a clear input.

Once fired, the output pulses are independent of further transitions of the A and B inputs and are a function of the external timing components CEXT and REXT. The pulse width is stable over a wide range of temperature and VCC. Pulse stability will be limited by the accuracy of external timing components. The pulse width is approximately defined by the relationship tW(OUT) ≈ CEXT REXT. For further information and applications, see AN-138.

特性 Features

■ Wide supply voltage range: 4.5V to 15V

■ Guaranteed noise margin: 1.0V

■ High noise immunity: 0.45 VCC (typ.)

■ Low power TTL compatibility: fan out of 2 driving 74L

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