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HT95A20P Datasheet(PDF) 3 Page - Holtek Semiconductor Inc |
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HT95A20P Datasheet(HTML) 3 Page - Holtek Semiconductor Inc |
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3 / 42 page  Pin Assignment Pin Description Pin Name I/O Description CPU VDD ¾ Positive power supply VSS ¾ Negative power supply, ground X1 I A 32768Hz crystal (or resonator) should be connected to this pin and X2. X2 O A 32768Hz crystal (or resonator) should be connected to this pin and X1. XC I External low pass filter used for frequency up conversion circuit. RES I Schmitt trigger reset input, active low. INT/TMR1 I Schmitt trigger input for external interrupt or Timer/Event Counter 1. No internal pull-high resistor. For INT: Edge trigger activated on a falling edge. For TMR1: Activated on falling or rising transition edge, selected by software. TMR0 I Schmitt trigger input for Timer/Event Counter 0. No internal pull-high resistor. Activated on falling or rising transition edge, selected by software. LCD Driver SEG0~SEG15 O LCD panel segment outputs. SEG16~SEG19 (PE0~PE3) O or I/O LCD panel segment outputs. SEG16~SEG19 can be nibble optioned to PE0~PE3 by software. COM0~COM7 O LCD panel common outputs. VLCD I LCD driver power source. HT95L100/10P Rev. 0.10 3 October 1, 2002 Preliminary S E G 6 S E G 7 S E G 8 S E G 9 S E G 1 0 S E G 1 1 S E G 1 2 S E G 1 3 S E G 1 4 S E G 1 5 S E G 1 6 / P E 0 S E G 1 7 / P E 1 S E G 1 8 / P E 2 S E G 1 9 / P E 3 V L C D M U S I C R E S T M R 0 D T M . 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 5 1 5 0 4 9 4 8 4 7 4 6 4 5 4 4 4 3 4 2 4 1 4 0 3 9 3 8 3 7 3 6 3 5 3 4 3 3 6 1 6 0 5 9 5 8 5 7 5 6 5 5 5 4 5 3 5 2 6 4 6 3 6 2 C O M 0 P A 7 P A 6 P A 5 P A 4 P A 3 P A 2 P A 1 P A 0 P B 7 P B 6 P B 5 P B 4 P B 3 P B 2 P B 1 P B 0 X M U T E D N P O H T 9 5 L 1 0 0 / 1 0 P 6 4 Q . P - A |
Similar Part No. - HT95A20P |
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Similar Description - HT95A20P |
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