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HT16511 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc |
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HT16511 Datasheet(HTML) 3 Page - Holtek Semiconductor Inc |
3 / 12 page Pad Coordinates Unit: mm Pad No. X Y Pad No. X Y 1 -1110.000 555.300 27 977.250 -720.000 2 -1110.000 450.300 28 977.250 -612.000 3 -1110.000 345.300 29 977.250 -504.000 4 -1110.000 240.300 30 977.250 -396.000 5 -1110.000 135.300 31 977.250 -288.000 6 -1165.900 9.800 32 977.250 -180.000 7 -1110.000 -125.500 33 977.250 -55.150 8 -1110.000 -230.500 34 977.250 49.850 9 -1110.000 -335.500 35 977.250 173.350 10 -1110.000 -440.500 36 977.250 281.350 11 -1110.000 -545.500 37 977.250 389.350 12 -1110.000 -650.500 38 977.250 497.350 13 -1110.000 -755.500 39 977.250 605.350 14 -897.200 -560.300 40 977.250 713.350 15 -782.500 -560.300 41 405.500 545.400 16 -674.500 -560.300 42 297.500 545.400 17 -566.500 -560.300 43 189.500 545.400 18 -458.500 -560.300 44 81.500 545.400 19 -350.500 -560.300 45 -34.700 545.400 20 -242.500 -560.300 46 -173.950 684.850 21 -134.500 -560.300 47 -285.150 684.850 22 -26.500 -560.300 48 -390.150 684.850 23 81.500 -560.300 49 -501.350 684.850 24 189.500 -560.300 50 -606.350 684.850 25 297.500 -560.300 51 -765.200 726.350 26 405.500 -560.300 Pin Description Pin No. Pin Name I/O Description 1~4 SW1~SW4 I 4-bit general purpose input port 5DO O Output serial data at the falling edge of the shift clock, starting from low order bit. This is an NMOS open-drain output pin. 6DI I Input serial data at the rising edge of the shift clock, starting from the low order bit. 7NC ¾ No connection 8 CLK I Reads serial data at the rising edge, and outputs data at the falling edge. 9CS I Initializes serial interface at the rising or falling edge of the HT16511. Then it waits to receive a command. Data input after CS has fallen is processed as a command. While command data is processed, current processing is stopped, and the serial interface is initialized. While CS is high, CLK is ignored. 10~13 K0~K3 I Keying data input to these pins is latched at the end of the display cycle. 14, 33, 45 VDD ¾ Posistive power supply 15~26 S1/K1~S12/K12 O Segment or key source output pins (dual function). This is PMOS open-drain and pull-low resistor output. 27~32, 35~36 S13/G16~S20/G9 O Segment or Grid driver output pins. These pins are selectable for segment or grid driving. This is PMOS open-drain and pull-low resistor output. 34 VEE ¾ VFD power supply 37~44 G8~G1 O Grid driver output pins (Grid only). This is PMOS open-drain and pull-low re- sistor output. 46~50 LED4~LED0 O LED driver output ports. This is a CMOS output pin. 51 VSS ¾ Negative power supply, ground 52 OSC I Connected to an external resistor or an RC oscillator circuit. HT16511 Rev. 1.10 3 September 18, 2003 |
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