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SGM809-ZXN3L Datasheet(PDF) 1 Page - SG Micro Corp

Part # SGM809-ZXN3L
Description  Microprocessor Supervisory Circuit in 3-Pin SOT23
Download  9 Pages
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Manufacturer  SGMICRO [SG Micro Corp]
Direct Link  http://www.sg-micro.com
Logo SGMICRO - SG Micro Corp

SGM809-ZXN3L Datasheet(HTML) 1 Page - SG Micro Corp

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SGM803
SGM809
SGM810
GENERAL DESCRIPTION
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
RESET output remains
operational with VCC as low as 1 V. The SGM803/SGM809
provides an active low reset signal (
RESET ) while the
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.
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 17
µA makes the
SGM803/SGM809/SGM810 ideal for use in portable, battery
operated equipment. They are available in the 3-pin SOT23
package.
APPLICATIONS
Microprocessor Systems
Controllers
Intelligent Instruments
Automotive Systems
Safety Systems
Portable Instruments
TYPICAL OPERATION CIRCUIT
MICROPROCESSOR
SYSTEM
SGM803/SGM809
GND
RESET
RESET
GND
VCC
VCC
RPULL-UP
SGM803 only
Microprocessor Supervisory
Circuit in 3-Pin SOT23
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
Open-Drain RESET Output(SGM803)
Push-Pull RESET Output (SGM809)
Push-Pull RESET Output (SGM810)
Compact 3-Pin SOT23 Package
PIN CONFIGURATIONS(TOP VIEW)
SGM803
SGM809
SGM810
1
2
3
SOT23-3
GND
VCC
RESET/RESET
SGM809-
ZXN3L
(only)
1
2
3
SOT23-3(L-Type)
GND
VCC
RESET
REV. B
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com


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