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HT48R065V Datasheet(PDF) 4 Page - Holtek Semiconductor Inc |
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HT48R065V Datasheet(HTML) 4 Page - Holtek Semiconductor Inc |
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4 / 61 page  Pin Name Function OPT I/T O/T Description VDD VDD ¾ PWR ¾ Power supply VSS VSS ¾ PWR ¾ Ground VFD23~VFD0 VFDn ¾¾ HV High voltage grid/segment output for VFD panel VCC VCC ¾ PWR ¾ High voltage positive power supply for driving the VFD fila- ment, F1O, BZO and BZO outputs. An external 10uF capaci- tor is recommended to be connected to ground on the PCB to reduce surge voltages. VO VO ¾¾ PWR LDO regulator output (5V). It ¢s be recommend that connect- ing an external capacitor on PCB layout. BZO, BZO BZO ¾¾ HV High voltage buzzer complement output signals BZO ¾¾ HV F1O F1O ¾¾ HV High voltage filament output signal. Note: I/T: Input type; O/T: Output type OPT: Optional by configuration option (CO) or register option PWR: Power; CO: Configuration option ST: Schmitt Trigger input; CMOS: CMOS output SCOM: Software controlled LCD COM HXT: High frequency crystal oscillator LXT: Low frequency crystal oscillator HV : high voltage output For VFD driver interface, the I/O function should only be configured as outputs. Absolute Maximum Ratings Supply Voltage ...........................VSS -0.3V to VSS+6.0V Storage Temperature ............................ -50°Cto125°C Input Voltage..............................VSS -0.3V to VDD+0.3V Operating Temperature........................... -40°Cto85°C IOL Total ..............................................................100mA IOH Total............................................................ -100mA Total Power Dissipation .....................................500mW Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. HT48R065V Rev. 1.00 4 October 20, 2009 |
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