LM556/NE556
3
Electrical Characteristics
(T
A
= 25°C, V
CC
= 5 ~ 15V, unless otherwise specified)
Notes:
*1. Supply current when output is high is typically 1.0mA less at V
CC
= 5V
*2. Tested at V
CC
= 5V and V
CC
= 15V
*3. This will determine the maximum value of R
A
+ R
B
for 15V operation.
The maximum total R = 20MΩ, and for 5V operation the maximum total R = 6.6MΩ.
*4. Matching characteristics refer to the difference between performance characteristics of each timer section in the monostable
mode.
*5. As reset voltage lowers, timing is inhibited and then the output goes low.
Parameter Symbol Conditions Min. Typ. Max. Units
Supply Voltage V
CC
-4.5-16V
Supply Current *
1
(two timers)
(low state)
I
CC
V
CC
= 5V, R
L
= ∞
V
CC
= 15V, R
L
= ∞
-
5
16
12
30
mA
mA
Timing Error *
2
(monostable)
Initial Accuracy
Drift with Temperature
Drift with Supply Voltage
ACCUR
∆t/∆T
∆t/∆V
CC
R
A
= 2KΩ to 100KΩ
C = 0.1µF
T = 1.1RC
-
0.75
50
0.1
-
%
ppm/°C
%/V
Control Voltage V
C
V
CC
= 15V 9.0 10.0 11.0 V
V
CC
= 5V 2.6 3.33 4.0 V
Threshold Voltage V
TH
V
CC
= 15V 8.8 10.0 11.2 V
V
CC
= 5V 2.4 3.33 4.2 V
Threshold Current*
3
I
TH
- - 30 250 nA
Trigger Voltage V
TR
V
CC
= 15V 4.5 5.0 5.6 V
V
CC
= 5V 1.1 1.6 2.2 V
Trigger Current I
TR
V
TR
= 0V - 0.01 2.0 µA
Reset Voltage*
5
V
RST
- 0.4 0.6 1.0 V
Reset Current I
RST
- - 0.03 0.6 mA
Low Output Voltage V
OL
V
CC
= 15V
I
SINK
= 10mA
I
SINK
= 50mA
I
SINK
= 100mA
I
SINK
= 200mA
V
CC
= 5V
I
SINK
= 8mA
I
SINK
= 5mA
-
0.1
0.4
2.0
2.5
0.25
0.15
0.25
0.75
3.2
0.35
0.25
V
V
High Output Voltage V
OH
V
CC
= 15V
I
SOURCE
= 200mA
I
SOURCE
= 100mA 12.75
12.5
13.3
-V
V
CC
= 5V
I
SOURCE
= 100mA 2.75 3.3
-
V
Rise Time of Output t
R
- - 100 300 ns
Fall Time of Output t
F
- - 100 300 ns
Discharge Leakage Current I
LKG
- - 10 100 nA
Matching Characteristics*
4
Initial Accuracy
Drift with Temperature
Drfit with Supply Voltage
ACCUR
∆t/∆T
∆t/∆V
CC
--
1.0
10
0.2
2.0
0.5
%
ppm/°C
%/V
Timing Error (astable)*
2
Initial Accuracy
Drift with Temperature
Drift with Supply Voltage
ACCUR
∆t/∆T
∆t/∆Vcc
V
CC
= 15V
R
A
,R
B
= 1KΩ to 100KΩ
C = 0.1µF
-
2.25
150
0.3
-
%
ppm/°C
%/V
