Datasheet

MAX792/MAX820
Microprocessor and Nonvolatile
Memory Supervisory Circuits
_______________________________________________________________________________________ 9
MAX792
MAX820
INTERNAL/
EXTERNAL
MODE
CONTROL
CHIP-ENABLE
OUTPUT
CONTROL
RESET
GENERATOR
TIMEBASE FOR
RESET AND
WATCHDOG
V
CC
WATCHDOG
TIMER
WATCHDOG
TRANSITION
DETECTOR
OVERVOLTAGE
COMPARATOR
P
N
INTERNAL
EXTERNAL
60mV
V
CC
V
CC
V
CC
1.30V
LOW-LINE
COMPARATOR
MANUAL
RESET
COMPARATOR
RESET
COMPARATOR
V
CC
V
CC
P
V
CC
*
4
5
9
14
8
11
7
6
15
16
13
10
1
2
3
RESET
RESET
LOW LINE
CE OUT
WDPO
WDO
OVO
12
GND
OVI
WDI
SWT
CE IN
MR
LLIN/
REFOUT
RESET IN/
INT
V
CC
* SWITCHES ARE SHOWN IN INTERNAL
THRESHOLD MODE POSITION
Figure 1. MAX792/MAX820 Block Diagram