KA555D 查看數據表（PDF） - Fairchild Semiconductor

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KA555D

Single Timer

Fairchild Semiconductor 

KA555

Single Timer

Features

• High Current Drive Capability (200mA)

• Adjustable Duty Cycle

• Temperature Stability of 0.005%/°C

• Timing From µsec to Hours

• Turn Off Time Less Than 2µsec

Applications

• Precision Timing

• Pulse Generation

• Time Delay Generation

• Sequential Timing

www.fairchildsemi.com

Description

The KA555 is a highly stable controller capable of

producing accurate timing pulses. With a monostable

operation, the time delay is controlled by one external

resistor and one capacitor. With an astable operation, the

frequency and duty cycle are accurately controlled by two

external resistors and one capacitor.

8-DIP

1

8-SOP

1

Internal Block Diagram

R

GND 1

Trigger 2

Comp.

R

R

8 Vcc

Discharging Tr.

7 Discharge

Output 3

OutPut

Stage

F/F

Reset 4

Vref

Comp.

6 Threshold

Control

5

Voltage

©2002 Fairchild Semiconductor Corporation

Rev. 1.0.3

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