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S93WD463P-2.7T Datasheet(PDF) 1 Page - Summit Microelectronics, Inc. |
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S93WD463P-2.7T Datasheet(HTML) 1 Page - Summit Microelectronics, Inc. |
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1 / 14 page  SUMMIT MICROELECTRONICS, Inc. • 300 Orchard City Drive, Suite 131 • Campbell, CA 95008 • Telephone 408-378-6461 • Fax 408-378-6586 • www.summitmicro.com 1 S93WD462/S93WD463 © SUMMIT MICROELECTRONICS, Inc. 1998 2029-01 4/14/98 Characteristics subject to change without notice Precision Supply-Voltage Monitor and Reset Controller With a Watchdog Timer and 1k-bit Microwire Memory SUMMIT MICROELECTRONICS, Inc. FEATURES • Precision Monitor & RESET Controller — RESET and RESET RESET RESET RESET RESET Outputs — Guaranteed RESET Assertion to VCC = 1V — 150ms Reset Pulse Width — Internal 1.26V Reference with ±1% Accuracy — ZERO External Components Required • Watchdog Timer — Nominal 1.6 Second Timeout Period — Reset by Any Transition of CS • Memory — 1K-bit Microwire Memory — S93WD462 – Internally Ties ORG Low – 100% Compatible With all 8-bit Implementations – Sixteen Byte Page Write Capability — S93WD463 – Internally Ties ORG High – 100% Compatible With all 16-bit Implementations – Eight Word Page Write Capability OVERVIEW The S93WD462 and S93WD463 are precision power supervisory circuits providing both active high and active low reset output. Both devices also incorporate a watchdog timer with a nominal timeout value of 1.6 seconds. Both devices have 1k-bits of E2PROM memory that is accessible via the industry standard microwire bus. The S93WD462 is configured with an internal ORG pin tied low providing a 8-bit byte organization and the S93WD463 is configured with an internal ORG pin tied high providing a 16-bit word organization. Both the S93WD462 and S93WD463 have page write capabil- ity. The devices are designed for a minimum 1,000,000 program/erase cycles and have data retention in ex- cess of 100 years. BLOCK DIAGRAM + - 7 RESET 6 RESET 8 CS DI DO SK 1 2 3 4 5 GND 2029 ILL2.1 MEMORY ARRAY 1K-Bit E2PROM WRITE CONTROL ADDRESS DECODER MODE DECODE DATA I/O RESET CONTROL WATCHDOG TIMER RESET PULSE GENERATOR 5KHz Oscillator VTRIP 1.26V VCC VCC |
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