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SGM803

更新时间: 2024-11-10 04:04:51
品牌 Logo 应用领域
圣邦微 - SGMICRO 微处理器监控
页数 文件大小 规格书
9页 504K
描述
Microprocessor Supervisory Circuit in 3-Pin SOT23

SGM803 数据手册

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SGM803  
SGM809  
SGM810  
Microprocessor Supervisory  
Circuit in 3-Pin SOT23  
GENERAL DESCRIPTION  
FEATURES  
Precision Voltage Monitor: 2.5V,3 V, 3.3 V, 5 V  
Options  
Superior Upgrade for MAX803/MAX809/MAX810  
and SGM803/SGM809/SGM810  
Fully Specified over Temperature  
Low Power Consumption (17μA Typ)  
Reset Assertion Down to 1 V VCC  
160 ms Min Power-On Reset  
The SGM803/SGM809/SGM810 supervisory circuits  
monitor the power supply voltage in microprocessor and  
digital systems. 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  
output remains  
RESET  
operational with VCC as low as 1 V. The SGM803/SGM809  
provides an active low reset signal ( ) while the  
RESET  
Open-Drain  
Push-Pull  
Push-Pull RESET Output (SGM810)  
Output(SGM803)  
RESET  
Output (SGM809)  
SGM810 provides an active high signal (RESET) output.  
The SGM809/SGM810 have push-pull outputs, whereas the  
SGM803 has an open-drain output, which requires an  
external pull-up resistor.  
RESET  
Compact 3-Pin SOT23 Package  
Seven reset threshold voltage options are available suitable  
for monitoring 2.5V, 3V, 3.3V, and 5V supply voltages.  
The reset comparator features built-in glitch immunity,  
making it immune to fast transients on VCC  
.
The low supply current of typically 17µA makes the  
SGM803/SGM809/SGM810 ideal for use in portable, battery  
operated equipment. They are available in the 3-pin SOT23  
package.  
PIN CONFIGURATIONSTOP VIEW)  
APPLICATIONS  
GND  
1
Microprocessor Systems  
Controllers  
SGM803  
3
VCC  
SGM809  
SGM810  
Intelligent Instruments  
Automotive Systems  
Safety Systems  
2
RESET/RESET  
Portable Instruments  
SOT23-3  
TYPICAL OPERATION CIRCUIT  
1
2
RESET  
GND  
SGM809-  
ZXN3L  
(only)  
VCC  
SGM803/SGM809  
RESET  
VCC  
3
VCC  
RPULL-UP  
MICROPROCESSOR  
SYSTEM  
SGM803 only  
RESET  
GND  
SOT23-3(L-Type)  
GND  
REV. B  
Shengbang Microelectronics Co, Ltd  
Tel: 86/451/84348461  
www.sg-micro.com  

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