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G693 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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G693 Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 7 page  Ver: 1.0 Sep 23, 2002 TEL: 886-3-5788833 http://www.gmt.com.tw 1 G692/G693 Global Mixed-mode Technology Inc. 4-Pin µP Voltage Monitors with Manual Reset Input Features Precision Monitoring of +3V, +3.3V, and +5V Power-Supply Voltages Fully Specified Over Temperature Available in Three Output Configurations Push-Pull RESET Output (G692L) Push-Pull RESET Output (G692H) Open-Drain RESET Output (G693L) 140ms min Power-On Reset Pulse Width 5µA Supply Current Guaranteed Reset Valid to VCC = +1V Power Supply Transient Immunity No External Components Manual Reset Input 4-Pin SOT143 Package Applications Computers Controllers Intelligent Instruments Critical µP and µC Power Monitoring Portable / Battery-Powered Equipment Automotive General Description The G692/G693 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V- pow- ered circuits. The G692/G693 also provide a de- bounced manual reset input. These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The G693L has an open-drain output stage, while the G692 have push-pull outputs. The G693L’s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The G692L have an active-low RESET output, while the G692H has an active-high RESET output. The reset com- parator is designed to ignore fast transients on VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1V. Low supply current makes the G692/G693 ideal for use in portable equipment. The G692/G693 are avail- able in a 4-pin SOT143 packages. Ordering Information PART TEMP. RANGE PIN-PACKAGE G692H(L)xxxTC -40°C ~ +105°C SOT143 G693LxxxTC -40°C ~ +105°C SOT143 * xxx specifies the threshold voltage. e.g. 263 denotes the 2.63V threshold voltage. Pin Configuration Typical Operating Circuit RESET INPUT GND µP V CC RESET (RESET) GND G692/G693 V CC R PULL-UP V CC * *G693 ONLY MR V CC SOT143 G692/G693 4 GND 2 RESET(RESET) MR 3 ()is for G692H 1 RESET INPUT GND µP V CC RESET (RESET) GND G692/G693 V CC R PULL-UP V CC * *G693 ONLY MR RESET INPUT GND µP V CC RESET (RESET) GND G692/G693 V CC R PULL-UP V CC * *G693 ONLY MR V CC SOT143 G692/G693 4 GND 2 RESET(RESET) MR 3 ()is for G692H 1 V CC SOT143 G692/G693 4 GND 2 RESET(RESET) MR 3 ()is for G692H 1 |
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