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HT9302C Datasheet(PDF) 5 Page - Holtek Semiconductor Inc |
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HT9302C Datasheet(HTML) 5 Page - Holtek Semiconductor Inc |
5 / 27 page Absolute Maximum Ratings Supply Voltage ........................................... -0.3V to 6V Storage Temperature ........................... -50°Cto125°C Input Voltage .............................. VSS -0.3 to VDD+0.3V Operating Temperature .......................... -20°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 reliabil- ity. Electrical Characteristics fOSC=3.5795MHz, Ta=25 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VDD Operating Voltage ¾¾ 2 ¾ 5.5 V IDD Operating Current 2.5V Pulse Off-hook Keypad entry No load ¾ 0.2 1 mA Tone ¾ 0.6 2 mA ISTB Standby Current 1V On-hook, no load No entry ¾¾ 1 mA VR Memory Retention Voltage ¾¾ 1 ¾ 5.5 V IR Memory Retention Current 1V On-hook ¾ 0.1 0.2 mA VIL Input Low Voltage ¾¾ VSS ¾ 0.2VDD V VIH Input High Voltage ¾¾ 0.8VDD ¾ VDD V IXMO XMUTE Leakage Current ¾ VXMUTE=12V No entry ¾¾ 1 mA IOLXM XMUTE Sink Current 2.5V VXMUTE=0.5V 1 ¾¾ mA IHKS HKS Pin Input Current 2.5V VHKS=2.5V ¾¾ 0.1 mA RHFI HFI Pull-low Resistance 2.5V VHFI=2.5V ¾ 200 ¾ k W RHDI HDI Pull-high Resistance 2.5V VHDI=0V ¾ 200 ¾ k W IOH1 Keypad Pin Source Current 2.5V VOH=0V -4 ¾ 40 mA IOL1 Keypad Pin Sink Current 2.5V VOL=2.5V 200 400 ¾mA IOH2 HFO Pin Source Current 2.5V VOH=2V -1 ¾¾ mA IOL2 HFO Pin Sink Current 2.5V VOL=0.5V 1 ¾¾ mA IOH3 HDO Pin Source Current 2.5V VOH=2V -1 ¾¾ mA IOL3 HDO Pin Sink Current 2.5V VOL=0.5V 1 ¾¾ mA tFP Pause Time After Flash ¾ Control key ¾ 0.2 ¾ s Digit key ¾ 1 ¾ tRP One-key Redialing Pause Time ¾ One-key redialing ¾ 1 ¾ s tDB Key-in Debounce Time ¾¾ ¾ 20 ¾ ms tBRK Break Time for One-key Redialing ¾ One-key redialing ¾ 1.2 ¾ s fOSC System Frequency ¾ Crystal=3.5795MHz 3.5759 3.5795 3.5831 MHz HT9302 Series Rev. 1.20 5 September 30, 2002 |
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