Rainbow Electronics MAX16021 - Manual (Page 13)

MAX16016/MAX16020/MAX16021
MAX16020
MAX16021
BATT
RESET
BATTERY
FRESHNESS SEAL
WATCHDOG
TIMER
BATTERY TEST
CIRCUIT
DISABLE
CE OUTPUT
CONTROL
REF
OUT
DELAY
LATCH
V CC
OUT
BATTON MR
PF1
OUT
PFO
CLEAR
WATCHDOG
TRANSITION
DETECTOR
RESET
(RESET)
(MAX16021
ONLY)
WDI
LL
WDO
GND
CEIN CEOUT
BATTOK
BATT_TEST
(MAX16020 ONLY)
100nA
25k Ω
Functional Diagrams (continued)
Low-Power µP Supervisory Circuits with
Battery-Backup Circuit and Chip-Enable Gating
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