Dallas DS1232LP/LPS
Pin
Sipex Alternative Part Number
Pin Number
Function
Number
DIP or
SOIC
Pin
Description
Sipex Part
Pin Description
DIP or
SOIC
Number
µSOIC
3
SP705-708/
813L/813M
Manual Reset
WDI Time Delay Set
VCC Trip 4.6V
VCC Trip 4.4V
Ground
1
2
3
3
4
PBRST
TD
1
MR
SP705-708/
813L/813M
N/A
N/A
N/A
3
N/A
N/A
N/A
5
1.6sec by design
4.6V by design
4.4V by design
GND
SP705/707/
813L
TOL=GND
TOL=VCC
GND
SP706/708/
813M
SP705-708/
813L/813M
Reset Active HIGH
Reset Active HIGH
Reset Active LOW
5
5
6
RST
RST
RST
SP707/708
SP813L/813M
SP705-708
8
7
7
2
1
1
RESET
RESET
RESET
SP705/706/
813L/813M
Watchdog Input
Voltage Input
7
ST (H to L)
VCC
6
2
4
5
8
8
4
6
7
2
WDI (any trans.)
SP705-708/
813L/813M
8
VCC
PFI
SP705-708/
813L/813M
Power Fail Input
Power Fail Output
Watchdog Output
N/A
N/A
N/A
N/A
SP705-708/
813L/813M
N/A
PFO
WDO
SP705/706/
813L/813M
N/A
Table 2. Device Overview on Dallas Semiconductor
June 2008 Rev C
SP705 Low Power Microprocessor Supervisory Circuits
© 2008 Exar Corporation
14
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