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STMicroelectronics - GENERAL PURPOSE DUAL BIPOLAR TIMERS

Numéro de référence SA556
Description GENERAL PURPOSE DUAL BIPOLAR TIMERS
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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SA556 fiche technique
NE556
® SA556 - SE556
GENERAL PURPOSE DUAL BIPOLAR TIMERS
. LOW TURN OFF TIME
. MAXIMUM OPERATING FREQUENCY
GREATER THAN 500kHz
. TIMING FROM MICROSECONDS TO HOURS
. OPERATES IN BOTH ASTABLE AND
MONOSTABLE MODES
. HIGH OUTPUT CURRENT CAN SOURCE OR
SINK 200mA
. ADJUSTABLE DUTY CYCLE
. TTL COMPATIBLE
. TEMPERATURE STABILITY OF 0.005%
PER oC
N
DIP14
(Plastic Package)
D
SO14
(Plastic Micropackage)
DE S CRI P T IO N
The NE556 dual monolithic timing circuit is a highly
stable controller capable of producing accurate time
delays or oscillation. In the time delay mode of op-
eration, the time is precisely controlled by oneexter-
nal resistor and capacitor. For a stable operation as
an oscillator, the freerunningfrequencyand theduty
cycle are both accurately controlled with two exter-
nal resistors and one capacitor. The circuit may be
triggered and reset on falling waveforms, and the
output structure can source or sink up to 200mA.
ORDER CODES
Part
Number
NE556
SA556
SE556
Temperature
Range
0oC, 70oC
–40oC, 105oC
–55oC, 125oC
Pakcage
ND
••
••
••
PIN CONNECTIONS (top view)
Discharge 1
Thres hold 2
Control Voltage 3
Reset 4
Output 5
Trigger 6
GND 7
14 VCC
13 Discharge
12 Thres hold
11 Control Voltage
10 Re set
9 Output
8 Trigge r
July 1998
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