Datasheet

Figure 4. MAX691A/MAX693A/MAX800L/MAX800M Block Diagram
Figure 5. Reset and Chip-Enable Timing
MAX691A
MAX693A
MAX800L
MAX800M
CHIP-ENABLE
OUTPUT
CONTROL
V
CC
3
1
13
7
11
9
VBATT
CE IN
OSC IN
WDI
PFI
RESET
GENERATOR
TIMEBASE FOR
RESET AND
WATCHDOG
WATCHDOG
TRANSITION
DETECTOR
WATCHDOG
TIMER
8
OSC SEL
1.25V
GND
4
4.65V*
6
LOW LINE
5
2
12
15
16
14
PFO
WDO
RESET
RESET
CE OUT
10
V
OUT
BATT ON
* 4.4V FOR THE MAX693A/MAX800M
V
CC
CE IN
RESET
THRESHOLD
CE OUT
RESET
RESET
100µs
15µs
100µs
5.0V
4.0V
5.0V
0V
5V
0V
5V
0V
0V
5V
LOGIC LEVELS SHOWN ARE FROM 0V TO 5V.
MAX691A/MAX693A/
MAX800L/MAX800M
Microprocessor Supervisory Circuits
www.maximintegrated.com
Maxim Integrated │ 10