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SMS2902SA Datasheet(PDF) 1 Page - Summit Microelectronics, Inc. |
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SMS2902SA Datasheet(HTML) 1 Page - Summit Microelectronics, Inc. |
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 © SUMMIT MICROELECTRONICS, Inc. 2000 2028 5.1 8/2/00 Characteristics subject to change without notice SUMMIT MICROELECTRONICS, Inc. FEATURES • Precision Voltage Monitor –VCC Supply Monitor - Complementary reset outputs for complex microcontroller systems - Integrated memory write lockout function - No external components required •Watchdog Timer – 1600 ms, internal • Two Wire Serial Interface (I2C™) • Extended Programmable Functions available on SMS24 • High Reliability – Endurance: 100,000 erase/write cycles – Data retention: 100 years • 8-Pin SOIC Packages Voltage Supervisory Circuit With Watchdog Timer SMS2902/SMS2904/SMS2916 OVERVIEW The SMS29xx is a power supervisory circuit that monitors VCC and will generate complementary reset outputs. The reset pins also act as I/Os and may be used for signal conditioning. The SMS29xx also has an on-board watch- dog timer. The SMS29xx integrates a nonvolatile serial memory. It features the industry standard I2C serial interface allowing quick implementation in an end-users’ system. BLOCK DIAGRAM + – GND VCC 8 4 RESET# 2 VTRIP RESET CONTROL RESET 7 1.26V SCL 6 SDA 5 WATCHDOG TIMER WDI# 1 2028 T BD 2.0 WRITE CONTROL NONVOLATILE MEMORY ARRAY PROGRAMMABLE RESET PULSE GENERATOR |
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