Datasheet > NE556D/DT

NE556D/DT

更新时间： 2024-02-08 11:05:06

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
16页	511K
描述
TIMER

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技术参数
数据手册

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NE556D/DT 技术参数

生命周期：	Obsolete	Reach Compliance Code：	compliant
风险等级：	5.69	Base Number Matches：	1

NE556D/DT 数据手册

NE556

SA556 - SE556

General-purpose dual bipolar timers

Features

■ Low turn-off time

■ Maximum operating frequency greater than

500 kHz

■ Timing from microseconds to hours

DIP14

(Plastic package)

■ Operates in both astable and monostable

modes

■ Output can source or sink up to 200 mA

■ Adjustable duty cycle

■ TTL compatible

SO14

■ Temperature stability of 0.005% per °C

(Plastic micropackage)

Description

The NE556, SA556 and SE556 dual monolithic

timing circuits are highly stable controllers

capable of producing accurate time delays or

oscillation. In the time delay mode of operation,

the time is precisely controlled by one external

resistor and capacitor. For a stable operation as

an oscillator, the free running frequency and the

duty cycle are both accurately controlled with two

external resistors and one capacitor.

Pin connections

(top view)

Discharge

Threshold

Control Voltage

Reset

Threshold

The circuits may be triggered and reset on falling

waveforms, and the output structure can source

or sink up to 200 mA.

Control Voltage

Reset

Output

Trigger

GND

Trigger

January 2009

Rev 2

1/16

www.st.com

12 3 4 5 6 7...16

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