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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT45R35V датащи(PDF) 6 Page - Holtek Semiconductor Inc |
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HT45R35V датащи(HTML) 6 Page - Holtek Semiconductor Inc |
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6 / 42 page  Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD VCC Conditions IOH3 BZO/BZO Source Current 5V 18V VOH= 0.9VCC -15 -30 ¾ mA 24V TBD TBD mA IOL4 Grid/Segment Sink Current 5V 18V VOL= 0.1VCC 2.5 5.0 ¾ mA 24V TBD TBD ¾ mA IOH4 Grid/Segment Source Current 5V 18V VOH= 0.9VCC -6 -12 ¾ mA 24V TBD TBD ¾ mA A.C. Characteristics Ta=25 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions fSYS System Clock (Crystal OSC, RC OSC) ¾ 2.2V~5.5V 400 ¾ 4000 kHz ¾ 3.3V~5.5V 400 ¾ 8000 kHz fTIMER Timer I/P Frequency ¾ 2.2V~5.5V 0 ¾ 4000 kHz ¾ 3.3V~5.5V 0 ¾ 8000 kHz tWDTOSC Watchdog Oscillator Period 3V ¾ 45 90 180 ms 5V ¾ 32 65 130 ms tWDT1 Watchdog Time-out Period (WDT RC OSC) 3V Without WDT prescaler 11 23 46 ms 5V 8 17 33 ms tWDT2 Watchdog Time-out Period (System Clock/4) ¾ Without WDT prescaler ¾ 1024 ¾ tSYS tRES External Reset Low Pulse Width ¾¾ 1 ¾¾ ms tSST System Start-up Timer Period ¾ Wake-up from HALT ¾ 1024 ¾ tSYS tINT Interrupt Pulse Width ¾¾ 1 ¾¾ ms tLVR Low Voltage Reset Time ¾¾ 0.25 1 2 ms tPHL, tPLH Propagation Delay Time (Clock to VFD Output) ¾ VCC=15V ¾ 100 200 ns Propagation Delay Time (Strobe to VFD Output) ¾ VCC=15V ¾ 100 200 ns tTHL, tTLH Output Transition Time ¾ VCC=15V ¾ 40 80 ns tSU Data Setup Time ¾ VCC=15V ¾ 10 20 ns tCS Setup Time (Clock to Strobe) VCC=15V ¾ 10 20 ns tH Hold Time (Data to Clock) VCC=15V ¾ 10 20 ns tSC Hold Time (Clock to Strobe) VCC=15V ¾ 75 150 ns tr,tf Clock Input Rise or Fall Time ¾ VCC=15V ¾¾ 20 ns tWC Clock Pulse Width ¾ VCC=15V ¾ 40 83 ns tWL Strobe Pulse Width ¾ VCC=15V ¾ 35 70 ns fmax Maximum Clock Input Fre- quency ¾ VCC=15V ¾ 8 ¾ MHz Note: *tSYS=1/fSYS HT45R35V Rev. 1.00 6 January 15, 2009 |
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