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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT86XXX датащи(PDF) 13 Page - Holtek Semiconductor Inc |
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HT86XXX датащи(HTML) 13 Page - Holtek Semiconductor Inc |
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13 / 55 page  Pad Name I/O Mask Option Description INT I Falling Edge Trigger or Falling/Rising Edge Trigger External interrupt Schmitt trigger input without pull-high resistor. Choice falling edge trigger or falling/rising edge trigger by mask option. Falling edge triggered active on a high to low transition. Rising edge triggered active on a low to high transition. Input voltage is the same as operating voltage. OSC1 OSC2 ¾ RC or Crystal OSC1 and OSC2 are connected to an RC network or a crystal (by mask option) for the internal system clock. In the case of RC operation, OSC2 is the output terminal for 1/4 system clock. The system clock may come from the crystal, the two pins cannot be floating. AUD O ¾ Audio output for driving a external transistor or for driving HT82V733 NC ¾¾ No connection TEST ¾¾ No connection (open) 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 .......................... -20°Cto70°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 reliabil- ity. D.C. Characteristics Ta=25 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VDD Operating Voltage ¾ fSYS=4MHz/8MHz 2.4 ¾ 5.2 V ISTB1 Standby Current (Watchdog Off) 3V No load, system HALT ¾¾ 1 mA 5V ¾¾ 2 mA ISTB2 Standby Current (Watchdog On) 3V No load, system HALT ¾¾ 7 mA 5V ¾¾ 10 mA IDD Operating Current (Crystal OSC) 3V No load, fSYS=4MHz ¾¾ 3mA 5V ¾¾ 7mA IOL I/O Port Sink Current 3V VOL=0.1VDD ¾ 4 ¾ mA 5V ¾ 10 ¾ mA IOH I/O Port Source Current 3V VOH=0.9VDD ¾-2 ¾ mA 5V ¾-5 ¾ mA IO AUD Source Current 3V VOH=0.9VDD ¾-3 ¾ mA 5V ¾-6 ¾ mA VIL1 Input Low Voltage for I/O Ports 3V ¾ ¾ 1 ¾ V 5V ¾ 1.8 ¾ V VIH1 Input High Voltage for I/O Ports 3V ¾ ¾ 2 ¾ V 5V ¾ 3 ¾ V HT86XXX Rev. 1.90 13 January 11, 2007 |
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