NA556, NE556, SA556, SE556
DUAL PRECISION TIMERS
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SLFS023G–APRIL 1978–REVISED JUNE 2006
Operating Characteristics
VCC = 5 V and 15 V
NA556
NE556
SA556
SE556
UNIT
TEST
PARAMETER
CONDITIONS(1)
MIN
TYP
MAX
MIN
TYP
MAX
Each timer,
1
3
0.5
1.5(4)
monostable(3)
Initial error of timing
TA = 25°C
interval(2)
Each timer, astable(5)
2.25%
1.5%
Timer 1 – Timer 2
±1
±0.5
Each timer,
50
30
100(4)
monostable(3)
Temperature
coefficient of timing
interval
TA = MIN to MAX
ppm/°C
Each timer, astable(5)
150
90
Timer 1 – Timer 2
±10
±10
Each timer,
0.1
0.5
0.05
0.2(4)
monostable(3)
Supply voltage
sensitivity of timing
interval
TA = 25°C
%/V
Each timer, astable(5)
0.3
0.15
Timer 1 – Timer 2
±0.2
±0.1
CL = 15 pF,
TA = 25°C
Output-pulse rise time
Output-pulse fall time
100
100
300
300
100
100
200(4)
200(4)
ns
ns
CL = 15 pF,
TA = 25°C
(1) For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
(2) Timing-interval error is defined as the difference between the measured value and the average value of a random sample from each
process run.
(3) Values specified are for a device in a monostable circuit similar to Figure 2, with the following component values: RA = 2 kΩ to 100 kΩ,
C = 0.1 µF.
(4) On products compliant to MIL-PRF-38535, this parameter is not production tested.
(5) Values specified are for a device in an astable circuit similar to Figure 1, with the following component values: RA = 1 kΩ to 100 kΩ,
C = 0.1 µF.
5
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