DS1232

www.maxim-ic.com DS1232 MicroMonitor Chip FEATURES ƒ Halts and restarts an out-of-control microprocessor ƒ Holds microprocessor in check during power transients ƒ Automatically restarts microprocessor after power failure ƒ Monitors pushbutton for external override ƒ Accurate 5% or 10% microprocessor power supply monitoring ƒ Eliminates the need for discrete components ƒ Space-saving, 8-pin mini-DIP ƒ Optional 16-pin SOIC surface mount package ƒ Industrial temperature -40°C to +85°C available, designated N PIN ASSIGNMENT PBRST 1 8 VCC TD 2 TOL 3 7 ST 6 RST GND 4 5 RST DS1232 8-Pin DIP (300-mil) See Mech. Drawings Section NC PBRST NC TD NC TOL NC GND 1 16 2 15 3 14 4 13 5 12 6 11 7 10 89 NC VCC NC ST NC RST NC RST DS1232S 16-Pin SOIC (300-mil) See Mech. Drawings Section PIN DESCRIPTION PBRST TD TOL GND RST - Pushbutton Reset Input - Time Delay Set - Selects 5% or 10% VCC Detect - Ground - Reset Output (Active High) RST - Reset Output (Active Low, open drain) ...