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SMS1242 参数 Datasheet PDF下载

SMS1242图片预览
型号: SMS1242
PDF下载: 下载PDF文件 查看货源
内容描述: 2.5V , 3V , 3.3V和5V双电压,双复位的微处理器监控电路 [2.5V, 3V, 3.3V & 5V Dual Voltage, Dual Reset Microprocessor Supervisory Circuits]
分类和应用: 微处理器监控
文件页数/大小: 11 页 / 78 K
品牌: SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
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SMS1242
PIN NAMES
Pin
Signal
Function
PIN CONFIGURATION
8-Pin SOIC
1
Active low output with weak pullup.
Driven low by: V
SENSE
below thresh-
old; or V
CC
below threshold while
RESET1#
MR# is below threshold. Remains
low for 150ms after V
SENSE
, or V
CC
and MR#, is above threshold.
RESET2#
V
SENSE
GND
Same as Reset1#, except open
drain connection
Threshold detector input for the
Resets
Ground
RESET1#
RESET2#
V
SENSE
GND
1
2
3
4
8
7
6
5
V
CC
MR#
SCL
SDA
2
3
4
5
6
7
8
2038 T PCon 2.0
SDA/GND SMS1243 Data I/O, or ground
SCL/GND SMS1243 Data Clock, or ground
MR#
V
CC
Manual input for Resets
Supply voltage
2038 Pin Table 2.0
V
CC
V
RST
V
RST
t
RST
RESET#
MR#
V
IL
t
MR
V
IH
t
RST
t
RST
V
SENSE
Figure 1. Reset Waveforms
V
SNS
2038 T Fig01 2.0
2038 2.0 6/8/00
SUMMIT MICROELECTRONICS, Inc.
3