圣邦微电子

SGM706 Low-Cost, Microprocessor Supervisory Circuit

GENERAL DESCRIPTION

The SGM706 microprocessor supervisory circuit reduces the complexity and number of components required to monitor power-supply and monitor microprocessor activity. It significantly improves system reliability and accuracy compared to separate ICs or discrete components.

The SGM706 provides power-supply monitoring circuitry that generates a reset output during power-up, power-down and brownout conditions. The reset output remains operational with VCC as low as 1V. Independent watchdog monitoring circuitry is also provided. This is activated if the watchdog input has not been toggled within 1.6 seconds.

In addition, there is a 1.25V threshold detector for power-fail warning, low-battery detection, or monitoring an additional power supply. An active-low manual-reset input (/MR) is also included.

The SGM706 is available in Green SOIC-8 package. It operates over an ambient temperature range of -40to +85.


PIN CONFIGURATIONS


FEATURES

• Precision Supply-Voltage Monitor
    4.65V for SGM706-L
    4.40V for SGM706-M
    4.0V for SGM706-J
    3.08V for SGM706-T
    2.93V for SGM706-S
    2.63V for SGM706-R
• Guaranteed 
/RESET Valid at VCC = 1V
• 200ms Reset Pulse Width
• Debounced TTL/CMOS-Compatible
    Manual-Reset Input
• Independent Watchdog Timer (1.6sec) Timeout
• Voltage Monitor for Power-Fail or Low-Battery Warning
• -
40 to +85 Operating Temperature Range
• Green SOIC-8 Package

APPLICATIONS

Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical μP Power Monitoring


ORDERING INFORMATION

Part Number Status Package Pins Pb-Free Temp Range
SGM706-LYS8G/TR Production SOIC-8 8 Y -40℃ to +85℃ Samples
SGM706-MYS8G/TR Production SOIC-8 8 Y -40℃ to +85℃ Samples
SGM706-JYS8G/TR Production SOIC-8 8 Y -40℃ to +85℃ Samples
SGM706-TYS8G/TR Production SOIC-8 8 Y -40℃ to +85℃ Samples
SGM706-SYS8G/TR Production SOIC-8 8 Y -40℃ to +85℃ Samples
SGM706-RYS8G/TR Production SOIC-8 8 Y -40℃ to +85℃ Samples

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