Datasheet

TPS3820-xx-Q1, TPS3823-xx-Q1, TPS3824-xx-Q1, TPS3825-xx-Q1, TPS3828-xx-Q1
PROCESSOR SUPERVISORY CIRCUITS


SGLS143B − DECEMBER 2002 − REVISED JUNE 2008
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
functional block diagram
_
+
Watchdog
Timer Logic
Reset
Logic
Reset
†
Reset
MR
‡
WDI
Transition
Detector
52 kΩ
40 kΩ
V
ref
V
DD
†
TPS3824/5
‡
TPS3820/3/5/8
timing diagram
undefined
undefined
t
d
t
d
t
t(out)
t
d
V
DD
V
IT
1.1 V
RESET
WDI