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HM17CM256 Datasheet(PDF) 10 Page - Hynix Semiconductor |
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HM17CM256 Datasheet(HTML) 10 Page - Hynix Semiconductor |
10 / 111 page HM17CM256 - 10 - s PIN DESCRIPTION 1 No. NAME I/O FUNCTION 21,22,23, 39,40,41 VDD supply Power pin for logic 27,28,29, 58,59,60 VSS supply GND pin for logic 67,68,69, 88,89,90 VSSH supply High voltage GND pin 31 VDDA supply This pin is internally connected to VDD pin. This pin is used when the voltage of each input pin is fixed to VDD level. caution) Do not use to main power pin. 17,18,19, 34,35,36 VSSA supply This pin is internally connected to VSS pin. This pin is used when the voltage of each input pin is fixed to VSS level. caution) Do not use to main power pin. 70,71,115,116 72,73 74,75 76,77 78,79 VLCD V1 V2 V3 V4 supply/O LCD driver supply voltage • LCD driver power supply port when external power supply is used. When external power is used, voltages should have following relations. VSS<V4<V3<V2<V1<VLCD • VLCD, V1~V4 voltages are generated by voltage booster at master mode operation under power circuit ON. • When internal power supply is used, capacitors must be connected between VLCD, V1~V4 and VSS. 91,92 93,94 C1+ C1- O Capacitor connection pin for voltage converter 95,96 97,98 C2+ C2- O Capacitor connection pin for voltage converter 99,100 101,102 C3+ C3- O Capacitor connection pin for voltage converter 103,104 105,106 C4+ C4- O Capacitor connection pin for voltage converter 107,108 109,110 C5+ C5- O Capacitor connection pin for voltage converter 111,112 113,114 C6+ C6- O Capacitor connection pin for voltage converter 82,83 VBA O Reference voltage output pin for voltage regulating. 84 VREF I Reference voltage input pin for voltage regulating. 85,86,87 VEE supply Voltage supply pin for boosted voltage generation. VDD level at normal status. 117,118 VOUT supply/O Internal DC/DC converter output pin. 80,81 VREG O Voltage regulator output pin. 24 RES I Reset pin Reset when RES= “L” |
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