NA555, NE555, SA555, SE555
PRECISION TIMERS
www.ti.com
SLFS022F–SEPTEMBER 1973–REVISED JUNE 2006
ORDERING INFORMATION
VTHRES
MAX
TA
PACKAGE(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
VCC = 15 V
PDIP – P
SOIC – D
SOP – PS
TSSOP – PW
PDIP – P
SOIC – D
PDIP – P
SOIC – D
PDIP – P
SOIC – D
Tube of 50
NE555P
NE555P
Tube of 75
Reel of 2500
Reel of 2000
Tube of 150
Reel of 2000
Tube of 50
Tube of 75
Reel of 2000
Tube of 50
Tube of 75
Reel of 2000
Tube of 50
Tube of 75
Reel of 2500
Tube of 50
Tube of 55
NE555D
NE555
N555
NE555DR
NE555PSR
NE555PW
NE555PWR
SA555P
0°C to 70°C
11.2 V
N555
SA555P
SA555
NA555P
NA555
SE555P
SE555D
–40°C to 85°C
–40°C to 105°C
11.2 V
11.2 V
SA555D
SA555DR
NA555P
NA555D
NA555DR
SE555P
SE555D
–55°C to 125°C
10.6
SE555DR
SE555JG
SE555FK
CDIP – JG
LCCC – FK
SE555JG
SE555FK
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
FUNCTION TABLE
TRIGGER
THRESHOLD
VOLTAGE(1)
DISCHARGE
SWITCH
RESET
OUTPUT
VOLTAGE(1)
Low
High
High
High
Irrelevant
<1/3 VDD
>1/3 VDD
>1/3 VDD
Irrelevant
Irrelevant
>2/3 VDD
<2/3 VDD
Low
High
Low
On
Off
On
As previously established
(1) Voltage levels shown are nominal.
2
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