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NE556 Datasheet(PDF) 3 Page - STMicroelectronics

Part No. NE556
Description  GENERAL PURPOSE DUAL BIPOLAR TIMERS
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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NE556-SA556-SE556
3/8
ELECTRICAL CHARACTERISTICS Tamb = +25°C, VCC = +5V to +15V (unless otherwise specified)
Symbol
Parameter
SE556
NE556 - SA556
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
ICC
Supply Current (RL
∝) - note 1) (2 timers)
Low Stage
VCC = +5V
VCC = +15V
High State
VCC = +5V
1. Supply current when output is high is typically 1mA less.
6
20
4
10
24
6
20
4
12
30
mA
Timing Error (monostable)
(RA = 2k to 100kΩ, C = 0.1µF)
Initial Accuracy - note 2)
Drift with Temperature
Drift with Supply Voltage
2. Tested at VCC = +5V and VCC = +15V
0.5
30
0.05
2
100
0.2
1
50
0.1
3
0.5
%
ppm/°C
%/V
Timing Error (astable)
(RA, RB = 1kΩ to 100kΩ, C = 0.1µF, VCC = +15V)
Initial Accuracy - see note 2
Drift with Temperature
Drift with Supply Voltage
1.5
90
0.15
2.25
150
0.3
%
ppm/°C
%/V
VCL
Control Voltage Level
VCC = +15V
VCC = +5V
9.6
2.9
10
3.33
10.4
3.8
9
2.6
10
3.33
11
4
V
Vth
Threshold Voltage
VCC = +15V
VCC = +5V
9.4
2.7
10
3.33
10.6
4
8.8
2.4
10
3.33
11.2
4.2
V
Ith
Threshold Current - note 3)
3. This will determine the maximum value of RA + RB for +15V operation the max total is R = 20MΩ and for 5V operation the max total R = 3.5MΩ
0.1
0.25
0.1
0.25
µA
Vtrig
Trigger Voltage
VCC = +15V
VCC = +5V
4.8
1.45
5
1.67
5.2
1.9
4.5
1.1
5
1.67
5.6
2.2
V
Itrig
Trigger Current (Vtrig = 0V)
0.5
0.9
0.5
2.0
µA
Vreset
Reset Voltage 4)
4. Specified with trigger input high
0.4
0.7
1
0.4
0.7
1
V
Ireset
Reset Current
Vreset = +0.4V
Vreset = 0V
0.1
0.4
0.4
1
0.1
0.4
0.4
1.5
mA
VOL
Low Level Output Voltage
VCC = +15V
IO(sink) = 10mA
IO(sink) = 50mA
IO(sink) = 100mA
IO(sink) = 200mA
VCC = +5V
IO(sink) = 8mA
IO(sink) = 5mA
0.1
0.4
2
2.5
0.1
0.05
0.15
0.5
2.2
0.25
0.2
0.1
0.4
2
2.5
0.3
0.25
0.25
0.75
2.5
0.4
0.35
V
VOH
High Level Output Voltage
VCC = +15V
IO(sink) = 200mA
IO(sink) = 100mA
VCC = +5V
IO(sink) = 100mA
13
3
12.5
13.3
3.3
12.75
2.75
12.5
13.3
3.3
V
Idis(off)
Discharge Pin Leakage Current
(output high) (Vdis = 10V)
20
100
20
100
nA
Vdis(sat)
Discharge pin Saturation Voltage
(output low) - note 5)
VCC = +15V, Idis = 15mA
VCC = +5V, Idis = 4.5mA
5. No protection against excessive pin 7 current is necessary, providing the package dissipation rating will not be exceeded
180
80
480
200
180
80
480
200
mV
tr
tf
Output rise Time
Output Fall Time
100
100
200
200
100
100
300
300
ns
toff
Turn off Time - note 6) (Vreset = VCC)
6. Time measured from a positive going input pulse from 0 to 0.8x Vcc into the threshold to the drop from high to low of the output trigger is tied to threshold.
0.5
0.5
µs




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