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SMS2916SA 查看數據表(PDF) - Summit Microelectronics

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SMS2916SA
Summit-Microelectronics
Summit Microelectronics Summit-Microelectronics
SMS2916SA Datasheet PDF : 14 Pages
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SUMMIT
MICROELECTRONICS, Inc.
SMS2902/SMS2904/SMS2916
Voltage Supervisory Circuit With Watchdog Timer
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 PDIP or SOIC Packages
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
VCC
8
SCL 6
SDA 5
NONVOLATILE
MEMORY
ARRAY
WRITE
CONTROL
PROGRAMMABLE
RESET PULSE
GENERATOR
2 RESET#
+
VTRIP
RESET
CONTROL
WDI# 1
1.26V
WATCHDOG
TIMER
7 RESET
4
GND
2028 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
2028 5.0 4/18/00
Characteristics subject to change without notice
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