JM38510-10902BCA Datasheet, PDF (2/19 Pages) Texas Instruments – DUAL PRECISION TIMERS

NA556, NE556, SA556, SE556
DUAL PRECISION TIMERS
SLFS023G – APRIL 1978 – REVISED JUNE 2006
www.ti.com
ORDERING INFORMATION
T_A
0°C to 70°C
–40°C to 85°C
–40°C to 105°C
–55°C to 125°C
V_T (MAX)
V_CC = 15 V
11.2 V
11.2 V
11.2 V
10.6 V
PACKAGE ⁽¹⁾
PDIP – N
SOIC – D
SOP – NS
PDIP – N
PDIP – N
SOIC – D
Tube of 25
Tube of 50
Reel of 2500
Reel of 2000
Tube of 25
Tube of 25
Tube of 50
Reel of 2500
CDIP – J
Tube of 25
ORDERABLE PART NUMBER
NE556N
NE556D
NE556DR
NE556NSR
SA556N
NA556N
NA556D
NA556DR
SE556J
SE556JB
TOP-SIDE MARKING
NE556N
NE556
NE556
SA556N
NA556N
NA556
SE556J
SE556JB
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
RESET
Low
High
High
High
FUNCTION TABLE
(each timer)
TRIGGER
VOLTAGE ⁽¹⁾
Irrelevant
<1/3 V_DD
>1/3 V_DD
>1/3 V_DD
THRESHOLD
VOLTAGE ⁽¹⁾
Irrelevant
Irrelevant
>2/3 V_DD
<2/3 V_DD
OUTPUT
DISCHARGE
SWITCH
Low
On
High
Off
Low
On
As previously established
(1) Voltage levels shown are nominal.
FUNCTIONAL BLOCK DIAGRAM, EACH TIMER
V_CC
RESET
THRES
CONT
OUT
TRIG
DISCH
GND
RESET can override TRIG, which can override THRES.
2
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