STM708 Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
STM708 Datasheet PDF : 32 Pages
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STM705, STM706, STM707, STM708, STM813L
Pin descriptions
2.7
PFO
When PFI is less than VPFI, PFO goes low; otherwise, PFO remains high. Leave open if
unused. Output type is push-pull.
Table 3.
Pin description
Pin
STM813L
1
6
8
—
7
2
4
5
3
—
STM707
STM708
1
—
—
7
8
2
4
5
3
6
STM705
STM706
1
6
8
7
—
2
4
5
3
—
Name
Function
MR
WDI
WDO
RST
RST
VCC
PFI
PFO
VSS
NC
Push-button reset input
Watchdog input
Watchdog output (push-pull)
Active-low reset output
Active-high reset output
Supply voltage
Power-fail input
Power-fail output (push-pull)
Ground
No connect
Figure 7. Block diagram (STM705/706/813L)
WDI
VCC
MR
PFI
WDI
transitional
detector
WATCHDOG
TIMER
VCC
VRST
COMPARE
VPFI
COMPARE
1. For STM813L only.
WDO
trec
generator
RST (RST)(1)
PFO
AI08829
Doc ID 10520 Rev 9
9/33
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