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TC820 数据表(PDF) 3 Page - Microchip Technology |
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TC820 数据表(HTML) 3 Page - Microchip Technology |
3 / 28 page © 2002 Microchip Technology Inc. DS21476B-page 3 TC820 Typical Applications Peak Hold Comparator 3-3/4 Digit A/D Converter Low Battery Detect Decimal Point Drivers Buzzer Driver Function Select Logic Probe Auto-Ranging Frequency Counter Clock Oscillator Triple LCD Drivers Low Drift Voltage Differential Reference Logic High Logic Low Over Range PKHold Low Batt Annunciator Drive Decimal Point Select Buzzer Control Function Select Digital Ground To LCD and Buzzer Peak Hold Logic Probe Input Frequency Input Full Scale Select Under Range Over Range Analog GND Volts Frequency Logic Triplex LCD 9V TC820 Analog Input + EOC Range Frequency Input Triples Drivers Display Latch Comparator A > B A/D Counter (3999 Counts) Logic Low Logic DP0/LO DP1/HI Range/ Frequency Frequency/ Volts Buzzer Driver BUZIN Logic Low OSC3 OSC2 OSC1 Frequency Counter Input A/D Counter Select Range SEL B A Low Batt Low Batt Detect A/D Control DEINT Under Range Over Range Range EOC DGND UR OR EOC/ HOLD PEAK HOLD ANNUNC SEG0 • • • BP3 VDISP 15 To LCD VINT CAZ Common VDD VSS VREF+ VREF- TC820 VIN+ VIN- CREF+CREF-VBUFF ÷2 ÷8 |
类似零件编号 - TC820 |
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类似说明 - TC820 |
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