Single Timer
LM555/NE555/SA555
Single Timer
www.fairchildsemi.com
Features
• High Current Drive Capability (200mA) • Adjustable Dut...
Description
LM555/NE555/SA555
Single Timer
www.fairchildsemi.com
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
Description
The LM555/NE555/SA555 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
LM555/NE555/SA555
Absolute Maximum Ratings (TA = 25°C)
Parameter Supply Voltage Lead Temperature (Soldering 10sec) Power Dissipation Operating Temperature Range LM555/NE555 SA555 Storage Temperature Range
Symbol
Value
Unit
VCC
16
V
TLEAD
300
°C
PD
600
mW
TOPR
0 ~ +70
°C
-40 ~ +85
TSTG
-65 ~ +150
°C
2
LM555/NE555/SA555
Electrical Characteristics
(TA = 25°C, VCC = 5 ~ 15V, unless otherwise specified)
Parameter Supply Voltage
Supply Current (Low Stable) (Note1)
Timing Error (Monostable) Initial Accuracy (Note2) Drift with Temperature (Note4) Drift with Supply Volta...
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