Product Summary

The DS1232L is a micromonitor chip. It monitors three vital conditions for a microprocessor: power supply, software execution, and external override. The second function it performs is pushbutton reset control. The DS1232L debounces the pushbutton input and guarantees an active reset pulse width of 250 ms minimum. The third function is a watchdog timer. The DS1232L has an internal timer that forces the reset signals to the active state if the strobe input is not driven low prior to timeout. The watchdog timer function can be set to operate on timeout settings of approximately 150 ms, 600 ms, and 1.2 seconds.

Parametrics

DS1232L absolute maximum ratings: (1)Voltage on V CC Pin Relative to Ground: -0.5V to +7.0V; (2)Voltage on I/O Relative to Ground: -0.5V to VCC + 0.5V; (3)Operating Temperature: 0℃ to 70℃; (4)Operating Temperature (Industrial Version): -40℃ to +85℃; (5)Storage Temperature: -55℃ to +125℃; (6)Soldering Temperature: 260℃ for 10 seconds.

Features

DS1232L features: (1)Halts and restarts an out-of-control microprocessor; (2)Holds microprocessor in check during power transients; (3)Automatically restarts microprocessor after power failure; (4)Monitors pushbutton for external override; (5)Accurate 5% or 10% microprocessor power supply monitoring; (6)Eliminates the need for discrete components; (7)Space-saving, 8-pin mini-DIP; (8)Optional 16-pin SOIC surface mount package; (9)Industrial temperature -40℃ to +85℃ available, designated N.

Diagrams

 DS1232L pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS1232LP
DS1232LP
Maxim Integrated Products
Supervisory Circuits Low Power MicroMonitor Chip
Data Sheet
0-36440: $0.77
DS1232LP+
DS1232LP+
Maxim Integrated Products
Supervisory Circuits Low Power MicroMonitor Chip
Data Sheet
0-1: $1.53
1-25: $1.02
25-50: $0.72
50-250: $0.71
DS1232LPN
DS1232LPN
Maxim Integrated Products
Supervisory Circuits Low Power MicroMonitor Chip
Data Sheet
0-36250: $0.89
DS1232LPN+
DS1232LPN+
Maxim Integrated Products
Supervisory Circuits Low Power MicroMonitor Chip
Data Sheet
0-1: $1.76
1-25: $1.18
25-50: $0.85
DS1232LPS
DS1232LPS
Maxim Integrated Products
Supervisory Circuits Low Power MicroMonitor Chip
Data Sheet
0-36080: $0.95
DS1232LPS/T&R
DS1232LPS/T&R
Maxim Integrated Products
Supervisory Circuits Low Power MicroMonitor Chip
Data Sheet
0-1000: $0.89
1000-39600: $0.89
DS1232LPS+
DS1232LPS+
Maxim Integrated Products
Supervisory Circuits Low Power MicroMonitor Chip
Data Sheet
0-1: $1.87
1-25: $1.25
25-50: $0.89
50-250: $0.87
DS1232LPS+T&R
DS1232LPS+T&R
Maxim Integrated Products
Supervisory Circuits Low Power MicroMonitor Chip
Data Sheet
0-790: $0.82
790-1000: $0.82