MAX791EJE Maxim Integrated, MAX791EJE Datasheet - Page 17

• Manufacturer Part Number: MAX791EJE
• Description: Supervisory Circuits
• Manufacturer: Maxim Integrated
• Series: MAX791r

Specifications of MAX791EJE

• Number Of Voltages Monitored: 1
• Monitored Voltage: 4.65 V
• Undervoltage Threshold: 4.5 V
• Overvoltage Threshold: 4.75 V
• Output Type: Active Low, Open Drain, Push-Pull
• Manual Reset: Resettable
• Watchdog: Watchdog
• Battery Backup Switching: Backup
• Power-up Reset Delay (typ): 280 ms
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Package / Case: CDIP-16
• Chip Enable Signals: Yes
• Maximum Power Dissipation: 800 mW
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: Yes
• Supply Current (typ): 150 uA
• Supply Voltage - Min: 0 V

Figure 17. Watchdog Flow Diagram
______________________________________________________________________________________
OR PROGRAM LOOP,
SUBROUTINE
SET WDI
RETURN
START
HIGH
LOW
WDI
END
SET
Microprocessor Supervisory Circuit
TRANSISTOR COUNT: 729
SUBSTRATE CONNECTED TO V
BATT ON
GND
PFO
V
CC
PFI
SWT
V
OUT
(1.778mm)
MR LOWLINE
0.07"
VBATT
Chip Topography
WDPO
OUT
RESET
WDO
CE IN
WDI
CE
OUT
(2.794mm)
0.11"
17