LMC555 Datasheet, PDF (4/21 Pages) National Semiconductor (TI) – CMOS Timer

LMC555
SNAS558J – FEBRUARY 2000 – REVISED MARCH 2013
Electrical Characteristics^{(1) (2)}
Test Circuit, T = 25°C, all switches open, RESET to V_S unless otherwise noted
Parameter
Test Conditions
I_S
V_CTRL
V_DIS
V_OL
V_OH
V_TRIG
I_TRIG
V_RES
I_RES
I_THRESH
I_DIS
t
Δt/ΔV_S
Δt/ΔT
f_A
f_MAX
t_R, t_F
t_PD
Supply Current
Control Voltage
Discharge Saturation Voltage
Output Voltage (Low)
Output Voltage
(High)
Trigger Voltage
Trigger Current
Reset Voltage
Reset Current
Threshold Current
Discharge Leakage
Timing Accuracy
Timing Shift with Supply
Timing Shift with Temperature
Astable Frequency
Maximum Frequency
Output Rise and
Fall Times
Trigger Propagation Delay
V_S = 1.5V
V_S = 5V
V_S = 12V
V_S = 1.5V
V_S = 5V
V_S = 12V
V_S = 1.5V, I_DIS = 1 mA
V_S = 5V, I_DIS = 10 mA
V_S = 1.5V, I_O = 1 mA
V_S = 5V, I_O = 8 mA
V_S = 12V, I_O = 50 mA
V_S = 1.5V, I_O = −0.25 mA
V_S = 5V, I_O = −2 mA
V_S = 12V, I_O = −10 mA
V_S = 1.5V
V_S = 12V
V_S = 5V
V_S = 1.5V ⁽³⁾
V_S = 12V
V_S = 5V
V_S = 5V
V_S = 12V
SW 2, 4 Closed
V_S = 1.5V
V_S = 5V
V_S = 12V
V_S = 5V ± 1V
V_S = 5V
SW 1, 3 Closed, V_S = 12V
Max. Freq. Test Circuit, V_S = 5V
Max. Freq. Test Circuit
V_S = 5V, C_L = 10 pF
V_S = 5V, Measure Delay
from Trigger to Output
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Min
Typ
Max
Units
(Limits)
50
150
100
250
µA
150
400
0.8
1.0
1.2
2.9
3.3
3.8
V
7.4
8.0
8.6
75
150
150
300
mV
0.2
0.4
0.3
0.6
V
1.0
2.0
1.0
1.25
4.4
4.7
V
10.5 11.3
0.4
0.5
0.6
3.7
4.0
4.3
V
10
pA
0.4
0.7
1.0
0.4
0.75
1.1
V
10
pA
10
pA
1.0
100
nA
0.9
1.1
1.25
1.0
1.1
1.20
ms
1.0
1.1
1.25
0.3
%/V
75
ppm/°C
4.0
4.8
5.6
kHz
3.0
MHz
15
ns
100
ns
(1) All voltages are measured with respect to the ground pin, unless otherwise specified.
(2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(3) If the RESET pin is to be used at temperatures of −20°C and below V_S is required to be 2.0V or greater.
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