SUMMIT
MICROELECTRONICS, Inc.
S93662/S93663
Precision Supply-Voltage Monitor and Reset Controller
FEATURES
• Precision Monitor & RESET Controller
— RESET and RESET Outputs
— Guaranteed RESET Assertion to V
CC
= 1V
— 200ms Reset Pulse Width
— Internal 1.26V Reference with ±1% Accuracy
— ZERO External Components Required
• Memory
— 4K-bit Microwire Memory
— S93662
– Internally Ties ORG Low
– 100% Compatible With all 8-bit
Implementations
– Sixteen Byte Page Write Capability
— S93663
– Internally Ties ORG High
– 100% Compatible With all 16-bit
Implementations
– Eight Word Page Write Capability
OVERVIEW
The S93662 and S93663 are precision power supervi-
sory circuits providing both active high and active low
reset outputs.
Both devices have 4k-bits of E
2
PROM memory that is
accessible via the industry standard microwire bus. The
S93662 is configured with an internal ORG pin tied low
providing a 8-bit byte organization and the S93663 is
configured with an internal ORG pin tied high providing
a 16-bit word organization. Both the S93662 and
S93663 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
CS
1
1.26V
SK
DI
2
3
MODE
DECODE
ADDRESS
DECODER
WRITE
CONTROL
DATA I/O
DO
4
5
GND
E2PROM
MEMORY
ARRAY
2012 T BD 2.0
SUMMIT MICROELECTRONICS, Inc.
•
300 Orchard City Drive, Suite 131
•
Campbell, CA 95008
•
Telephone 408-378-6461
•
Fax 408-378-6586
•
www.summitmicro.com
© SUMMIT MICROELECTRONICS, Inc. 2000
2012 2.1 8/2/00
1
Characteristics subject to change without notice
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
