View ds1233m datasheet:

DS1233M DS1233M EconoReset FEATURES PIN ASSIGNMENT � Automatically restarts microprocessor after power DALLAS failure DS1233 Econo � Maintains reset for 350 ms after VCC returns to an Reset in-tolerance condition RST 1 8 NC VCC 2 7 NC � Reduces need for discrete components NC 3 6 NC � Precision temperature-compensated voltage refer- GND 4 5 NC ence and voltage sensor DS1233M 8�PIN SOIC � Low-cost TO-92 package or surface mount 8�pin (150 MIL) SOIC packages available See Mech. Drawings 1 2 3 Section � Internal 5 K? pull-up resistor � Compatible with Motorola 68XXX series and HC16 Microprocessors 1 2 3 � Pin function compatible with the Motorola MC33064, MC34064, MC33164, and MC34164 DS1233M TO-92 Package � Operating temperature of �40�C to +85�C See Mech. D