NA556, NE556, SA556, SE556
DUAL PRECISION TIMERS
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SLFS023G–APRIL 1978–REVISED JUNE 2006
Absolute Maximum Ratings(1)
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
18
UNIT
V
VCC
VI
Supply voltage(2)
Input voltage
CONT, RESET, THRES, and TRIG
VCC
±225
86
V
IO
Output current
mA
D package
N package
NS package
J package
θJA
Package thermal impedance(3)(4)
80
°C/W
76
θJC
Package thermal impedance(5)(6)
15.05
150
300
260
150
°C/W
°C
TJ
Operating virtual junction temperature
Lead temperature 1,6 mm (1/16 in) from case for 60 s
Lead temperature 1,6 mm (1/16 in) from case for 10 s
Storage temperature range
J package
°C
D, N, or NS package
°C
Tstg
–65
°C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.
(3) Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
(4) The package thermal impedance is calculated in accordance with JESD 51-7.
(5) Maximum power dissipation is a function of TJ(max), θJC, and TC. The maximum allowable power dissipation at any allowable case
temperature is PD = (TJ(max) – TC)/θJC. Operating at the absolute maximum TJ of 150°C can affect reliability.
(6) The package thermal impedance is calculated in accordance with MIL-STD-883.
Recommended Operating Conditions
MIN
4.5
MAX
16
UNIT
NA556, NE556, SA556
SE556
VCC
Supply voltage
V
4.5
18
VI
IO
Input voltage
CONT, RESET, THRES, and TRIG
VCC
±200
105
70
V
Output current
mA
NA556
NE556
SA556
SE556
–40
0
TA
Operating free-air temperature
°C
–40
–55
85
125
3
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