S-19400 Datasheet, PDF (12/36 Pages) Seiko Instruments Inc – Watchdog operation voltage range

FOR AUTOMOTIVE 125°C OPERATION LOW CURRENT CONSUMPTION WATCHDOG TIMER WITH RESET FUNCTION
S-19400/19401 Series
Rev.2.1_00
 Test Circuits
+
V
VDD
CPOR
CWDT ^WDO
WDI
WEN
+
V
W/T
VSS
A
VDD
CPOR
CWDT ^WDO
WDI
WEN
W/T
VSS
Figure 8 Test Circuit 1
VDD
CPOR
CWDT WDO
WDI
WEN
+
V
W/T
VSS
Figure 10 Test Circuit 3
VDD
CPOR
CWDT WDO
WDI
WEN
RST
+
VSS
V
Figure 9 Test Circuit 2
VDD
CPOR
CWDT WDO
WDI
WEN
+
V
W/T
VSS
Figure 11 Test Circuit 4
VDD
CPOR
CWDT WDO
WDI
WEN
RST
+
VSS
V
Figure 12 Test Circuit 5
Figure 13 Test Circuit 6
12