S93463

SUMMIT MICROELECTRONICS, Inc. S93462/S93463 Precision Supply-Voltage Monitor and Reset Controller FEATURES Precision Monitor & RESET Controller www.datasheet4u.com — RESET and RESET Outputs — Guaranteed RESET Assertion to VCC = 1V — 150ms Reset Pulse Width — Internal 1.26V Reference with ±1% Accuracy — ZERO External Components Required Memory — 1K-bit Microwire Memory — S93462 – Internally Ties ORG Low – 100% Compatible With all 8-bit Implementations – Sixteen Byte Page Write Capability — S93463 – Internally Ties ORG High – 100% Compatible With all 16-bit Implementations – Eight Word Page Write Capability OVERVIEW The S93462 and S93463 are precision power supervisory circuits providing both active high and active low reset outputs. Both devices have 1k-bits of E2PROM memory that is accessible via the industry standard microwire bus. The S93462 is configured with an internal ORG pin tied low providing a 8-bit byte organization and the S93463 is configured with an internal ORG pin tied high providing a 16-bit word organization. Both the S93462 and S93463 have page write capability. The devices are designed for a minimum 100,000 program/erase cycles and have data retention in excess of 100 years. BLOCK DIAGRAM VCC 8 5kHz OSCILLATOR RESET PULSE GENERATOR 6 RESET# + – VTRIP RESET CONTROL 7 RESET 1.26V CS 1 WATCHDOG TIMER SK DI 2 3 MODE DECODE ADDRESS DECODER WRITE CONTROL DATA I/O DO 4 5 GND E2PROM MEMORY ARRAY 2021 T BD 2.0 © SUMMIT MICROELECTRONICS, In...