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HT1650 Datasheet(PDF) 5 Page - Holtek Semiconductor Inc |
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HT1650 Datasheet(HTML) 5 Page - Holtek Semiconductor Inc |
5 / 19 page Pad No. Pad Name I/O Description 46 IRQ O Time base or Watchdog Timer overflow flag, NMOS open drain output. 47, 48 BZ, BZ O 2kHz or 4kHz frequency output pair (tristate output buffer) 49~53 T1~T4, T000 I Vary bias current pin It is usually not connected Absolute Maximum Ratings Supply Voltage ...........................VSS -0.3V to VSS+5.5V Storage Temperature ............................ -50°Cto125°C Input Voltage.............................VSS -0.3V to VDD+0.3V Operating Temperature........................... -25°Cto75°C 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. D.C. Characteristics Ta=25 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VDD Operating Voltage ¾¾ 2.7 ¾ 5.2 V IDD1 Operating Current 3V No load/LCD ON On-chip RC oscillator ¾ 150 250 mA 5V ¾ 250 370 mA IDD2 Operating Current 3V No load/LCD ON Crystal oscillator ¾ 135 200 mA 5V ¾ 200 300 mA IDD11 Operating Current 3V No load/LCD OFF On-chip RC oscillator ¾ 15 30 mA 5V ¾ 50 70 mA IDD22 Operating Current 3V No load/LCD OFF Crystal oscillator ¾ 210 mA 5V ¾ 310 mA ISTB Standby Current 3V No load, Power down mode ¾¾ 1 mA 5V ¾¾ 2 mA VIL Input Low Voltage 3V DB0~DB3, WR,CS,RD 0 ¾ 0.6 V 5V 0 ¾ 1.0 V VIH Input High Voltage 3V DB0~DB3, WR,CS,RD 2.4 ¾ 3V 5V 4.0 ¾ 5V IOL1 BZ, BZ, IRQ Sink Current 3V VOL=0.3V 1.2 2.5 ¾ mA 5V VOL=0.5V 36 ¾ mA IOH1 BZ, BZ Source Current 3V VOH=2.7V -0.9 -1.8 ¾ mA 5V VOH=4.5V -2 -4 ¾ mA IOL2 DB0~DB3 Sink Current 3V VOL=0.3V 1.2 2.5 ¾ mA 5V VOL=0.5V 36 ¾ mA IOH2 DB0~DB3 Source Current 3V VOH=2.7V -0.9 -1.8 ¾ mA 5V VOH=4.5V -2 -4 ¾ mA IOL3 LCD Common Sink Current 3V VOL=0.3V 80 160 ¾mA 5V VOL=0.5V 180 360 ¾mA IOH3 LCD Common Source Current 3V VOH=2.7V -40 -80 ¾mA 5V VOH=4.5V -90 -180 ¾mA HT1650 Rev. 1.80 5 November 9, 2010 PATENTED |
Similar Part No. - HT1650_10 |
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