參數(shù)資料
型號(hào): SMS2904SA
廠商: Summit Microelectronics, Inc.
英文描述: Voltage Supervisory Circuit With Watchdog Timer
中文描述: 電壓監(jiān)控電路,帶有看門(mén)狗定時(shí)器
文件頁(yè)數(shù): 1/14頁(yè)
文件大?。?/td> 161K
代理商: SMS2904SA
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.
Voltage Supervisory Circuit With Watchdog Timer
FEATURES
Precision Voltage Monitor
– V
CC
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 (I
2
C)
Extended Programmable Functions
available on SMS24
High Reliability
– Endurance: 100,000 erase/write cycles
– Data retention: 100 years
8-Pin SOIC Packages
SMS2902/SMS2904/SMS2916
OVERVIEW
The SMS29xx is a power supervisory circuit that monitors
V
CC
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
interface allowing quick implementation in an end-users’
system.
standard
I
2
C
serial
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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SMS2916P-A 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Precision Voltage Supervisory Circuit With Watchdog Timer and 16K I2C Memory