NA555, NE555, SA555, SE555
PRECISION TIMERS
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SLFS022F–SEPTEMBER 1973–REVISED JUNE 2006
Absolute Maximum Ratings(1)
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
18
UNIT
VCC
VI
Supply voltage(2)
Input voltage
V
CONT, RESET, THRES, TRIG
VCC
±225
97
V
IO
Output current
mA
D package
P package
85
θJA
Package thermal impedance(3)(4)
°C/W
PS package
PW package
FK package
JG package
95
149
5.61
14.5
150
260
300
150
θJC
Package thermal impedance(5)(6)
°C/W
TJ
Operating virtual junction temperature
Case temperature for 60 s
°C
°C
°C
°C
FK package
JG package
Lead temperature 1, 6 mm (1/16 in) from case for 60 s
Storage temperature range
Tstg
–65
(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 GND.
(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
over operating free-air temperature range (unless otherwise noted)
MIN
4.5
MAX
16
UNIT
NA555, NE555, SA555
SE555
VCC
Supply voltage
V
4.5
18
VI
IO
Input voltage
CONT, RESET, THRES, and TRIG
VCC
±200
105
70
V
Output current
mA
NA555
NE555
SA555
SE555
–40
0
TA
Operating free-air temperature
°C
–40
–55
85
125
4
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