S-19400 Datasheet, PDF (13/36 Pages) Seiko Instruments Inc – Watchdog operation voltage range

FOR AUTOMOTIVE 125°C OPERATION LOW CURRENT CONSUMPTION WATCHDOG TIMER WITH RESET FUNCTION
Rev.2.1_00
S-19400/19401 Series
VDD
CPOR
CWDT WDO
WDI
WEN
RST
A
VSS
Figure 14 Test Circuit 7
VDD
CPOR
CWDT WDO
WDI
WEN
RST A
VSS
Figure 16 Test Circuit 9
VDD
CPOR
CWDT
WDO
WDI
+
WEN
V
W/T
VSS
Figure 18 Test Circuit 11
VDD
CPOR
CWDT WDO
WDI
WEN
RST A
VSS
Figure 15 Test Circuit 8
VDD
CPOR
CWDT
WDO
WDI
WEN
+
V
W/T
VSS
Figure 17 Test Circuit 10
VDD
CPOR
CWDT
WDO
WDI
WEN
A
W/T
VSS
Figure 19 Test Circuit 12
13