Rainbow-electronics MAX16021 Manual de usuario Pagina 19

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MAX16016/MAX16020/MAX16021
MAX16021
16
V
CC
CEIN
CEOUT
OUT
LL
RESET
BATTOK
BATTON
5
15
6
TQFN
14
7
13
8
*EP
121
112
103
94
BATT
MR
PFI
WDI
RESET
GND
PFO
WDO
MAX16016
10
OUT
BATTON
V
CC
WDI
1
8
3
TDFN
+
+
7
RESETBATT
9
24
6
5
GND
PFO
MR
PFI
*EP
TOP VIEW
Pin Configurations (continued)
MAX16020L
CE
CEIN
GND
RAM
V
CC
PFO
BATT
0.1µF
R1
R2
0.1µF
0.1µF
CEOUT
OUT
RESET
ADDRESS
DECODE
RTC
µP
MR
A0–A15
RST
LL
NMI
WDI
I/O
WDO
I/O
SECONDARY
DC VOLTAGE
3.3V
PFI
0.1µF
(MIN)
V
CC
Typical Application Circuit
Low-Power µP Supervisory Circuits with
Battery-Backup Circuit and Chip-Enable Gating
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