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TC7116ACPL Datasheet(PDF) 5 Page - TelCom Semiconductor, Inc |
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TC7116ACPL Datasheet(HTML) 5 Page - TelCom Semiconductor, Inc |
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5 / 14 page  3-207 TELCOM SEMICONDUCTOR, INC. 7 6 5 4 3 1 2 8 PIN DESCRIPTION 40-Pin PDIP/ 44-Pin 40-PinCerDIP Plastic Quad Pin Number Flat Package Normal Pin Number Symbol Description 1 8 HLDR Hold pin, Logic 1 holds present display reading. 29 D1 Activates the D section of the units display. 310 C1 Activates the C section of the units display. 411 B1 Activates the B section of the units display. 512 A1 Activates the A section of the units display. 613 F1 Activates the F section of the units display. 714 G1 Activates the G section of the units display. 815 E1 Activates the E section of the units display. 916 D2 Activates the D section of the tens display. 10 17 C2 Activates the C section of the tens display. 11 18 B2 Activates the B section of the tens display. 12 19 A2 Activates the A section of the tens display. 13 20 F2 Activates the F section of the tens display. 14 21 E2 Activates the E section of the tens display. 15 22 D3 Activates the D section of the hundreds display. 16 23 B3 Activates the B section of the hundreds display. 17 24 F3 Activates the F section of the hundreds display. 18 25 E3 Activates the E section of the hundreds display. 19 26 AB4 Activates both halves of the 1 in the thousands display. 20 27 POL Activates the negative polarity display. 21 28 BP LCD backplane drive output (TC7116/TC7116A). GND Digital ground (TC7117/TC7117A). 22 29 G3 Activates the G section of the hundreds display. 23 30 A3 Activates the A section of the hundreds display. 24 31 C3 Activates the C section of the hundreds display. 25 32 G2 Activates the G section of the tens display. 26 34 V– Negative power supply voltage. 27 35 VINT Integrator output. Connection point for integration capacitor. See Integration Capacitor section for additional details. 28 36 VBUFF Integration resistor connection. Use a 47 k Ω resistor for 200 mV full-scale range and a 470 k Ω resistor for 2V full-scale range. 29 37 CAZ The size of the auto-zero capacitor influences system noise. Use a 0.47 µF capacitor for 200 mV full scale and a 0.047 µF capacitor for 2V full scale. See Auto-Zero Capacitor paragraph for more details. 30 38 V – IN The analog LOW input is connected to this pin. 31 39 V + IN The analog HIGH input is connected to this pin. 39 40 COMMON This pin is primarily used to set the analog common- mode COMMON voltage for battery operation or in systems where the input signal is referenced to the power supply. See Analog Common paragraph for more details. It also acts as a reference voltage source. TC7116 TC7116A TC7117 TC7117A 3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD |
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