欢迎访问ic37.com |
会员登录 免费注册
发布采购

SGM812-ZXN5 参数 Datasheet PDF下载

SGM812-ZXN5图片预览
型号: SGM812-ZXN5
PDF下载: 下载PDF文件 查看货源
内容描述: 微处理器监控电路,带有手动复位输入 [Microprocessor Supervisory with Manual Reset Input]
分类和应用: 微处理器监控
文件页数/大小: 9 页 / 481 K
品牌: SGMICRO [ Shengbang Microelectronics Co, Ltd ]
 浏览型号SGM812-ZXN5的Datasheet PDF文件第2页浏览型号SGM812-ZXN5的Datasheet PDF文件第3页浏览型号SGM812-ZXN5的Datasheet PDF文件第4页浏览型号SGM812-ZXN5的Datasheet PDF文件第5页浏览型号SGM812-ZXN5的Datasheet PDF文件第6页浏览型号SGM812-ZXN5的Datasheet PDF文件第7页浏览型号SGM812-ZXN5的Datasheet PDF文件第8页浏览型号SGM812-ZXN5的Datasheet PDF文件第9页  
SGM811
SGM812
GENERAL DESCRIPTION
The SGM811/SGM812 supervisory circuits monitor the
power supply voltage in microprocessor and digital
systems. The SGM811/SGM812 is designed to monitor
seven different voltages, these voltages have been selected
for the effective monitoring of 2.5V, 3 V, 3.3 V, and 5 V
supply voltage levels.
They provide a reset output during power-up,
power-down and brownout conditions. On power-up, an
internal timer holds reset asserted for 240 ms. This holds
the microprocessor in a reset state until conditions have
stabilized. The
RESET
output remains operational with
V
CC
as low as 1 V. The SGM811 provides an active low reset
signal (
RESET
) while the SGM812 provides an active high
signal (RESET) output.
The SGM811/SGM812 has a manual reset input. The
manual reset function is very useful, especially if the circuit
in which the SGM811/SGM812 is operating enters into a
state that can only be detected by the user. Allowing the
user to reset a system manually can reduce the damage or
danger that could otherwise be caused by an out-of-control
or locked system. The devices come in a 4-pin SOT143
and 5-pin SOT23 packages.
Microprocessor Supervisory
with Manual Reset Input
FEATURES
Superior Upgrade for MAX811/MAX812 and
ADM811/ADM812
Specified over Temperature
Low Power Consumption (17
μA
Typ)
Precision Voltage Monitor: 2.5V,3 V, 3.3 V, 5 V
Options
Reset Assertion Down to 1 V V
CC
160 ms Min Power-On Reset
Logic Low
RESET
Output (SGM811)
Logic High RESET Output (SGM812)
Manual Reset Input
Compact 4-Pin SOT143 and 5-Pin SOT23 Packages
PIN CONFIGURATIONS(TOP VIEW)
SOT143-4
GND
1
4
V
CC
RESET/RESET
2
3
MR
APPLICATIONS
Microprocessor Systems
Controllers
Intelligent Instruments
Automotive Systems
Safety Systems
Portable Instruments
SOT23-5
GND
NC
RESET/RESET
1
2
3
4
MR
5
V
CC
TYPICAL OPERATION CIRCUIT
V
CC
V
CC
MICROPROCESSOR
SYSTEM
RESET
100KO
GND
GND
SGM811
RESET
MR
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com
Nov 2006