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S24022SB 参数 Datasheet PDF下载

S24022SB图片预览
型号: S24022SB
PDF下载: 下载PDF文件 查看货源
内容描述: 精密复位控制器和4K I2C存储器既RESET和RESET输出 [Precision RESET Controller and 4K I2C Memory With Both RESET and RESET Outputs]
分类和应用: 存储控制器
文件页数/大小: 14 页 / 157 K
品牌: SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
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SUMMIT
MICROELECTRONICS, Inc.
S24042/S24043
3 and 5 Volt Systems
Precision RESET Controller and 4K I
2
C Memory
With Both RESET and
RESET
Outputs
FEATURES
• Precision Supply Voltage Monitor
— Dual reset outputs for complex
microcontroller systems
— Integrated memory write lockout
• Guaranteed RESET (RESET#) assertion
to V
CC
=1V
• Power-Fail Accuracy Guaranteed
• No External Components
• 3 and 5 Volt system versions
• Low Power CMOS
— Active current less than 3mA
— Standby current less than 25µA
• Memory Internally Organized 512 X 8
— Two Wire Serial Interface (I
2
C™)
– Bidirectional data transfer protocol
– Standard 100KHz and Fast 400KHz
High Reliability
— Endurance: 100,000 erase/write cycles
— Data retention: 100 years
8-Pin SOIC Packages
OVERVIEW
The S24042 and S24043 are power supervisory devices
with 4,096 bits of serial E
2
PROM. They are fabricated
using SUMMIT’s advanced CMOS E
2
PROM technology
and are suitable for both 3 and 5 volt systems.
The memory is internally organized as 512 x 8. It features
the I
2
C serial interface and software protocol allowing
operation on a simple two-wire bus.
The S24042 provides a precision V
CC
sense circuit and
two open drain outputs: one (RESET) drives high and the
other (RESET#) drives low whenever V
CC
falls below
V
TRIP
. The S24043 is identical to the S24042 with the
exception being RESET is not bonded out on pin 7.
BLOCK DIAGRAM
VCC
22
5kHz
OSCILLATOR
RESET
PULSE
GENERATOR
2
RESET#
+
VTRIP
RESET
CONTROL
7
RESET
1.26V
SCL
SDA
6
5
MODE
DECODE
ADDRESS
DECODER
WRITE
CONTROL
DATA I/O
E2PROM
MEMORY
ARRAY
4
2011 T-BD 1.0
GND
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
2011 2.1 8/2/00
Characteristics subject to change without notice
1