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KA555

Single Timer
Features
High Current Drive Capability (200mA) Adjustable Duty Cycle Temperature Stability of 0.005%/ C Timing From sec to Hours Turn Off Time Less Than 2 sec

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

Applications
Precision Timing Pulse Generation Time Delay Generation Sequential Timing

1

8-SOP

1

Internal Block Diagram

R

R

R 8

GND

1

Vcc

Comp.

Trigger

Discharging Tr. 7

2

Discharge

Output

3

OutPut Stage

F/F

6 Comp.

Threshold Control Voltage

Reset

4

5

Vref

Rev. 1.0.3
2002 Fairchild Semiconductor Corporation

KA555 Datasheet Fairchild Download PDF

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KA555 DATASHEET