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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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EM78P257AP датащи(PDF) 72 Page - ELAN Microelectronics Corp |
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EM78P257AP датащи(HTML) 72 Page - ELAN Microelectronics Corp |
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72 / 91 page  EM78P257 OTP ROM This specification is subject to change without prior notice. 07.27.2004 (V1.4) 72 6. ELECTRICAL CHARACTERISTICS 6.1 DC Electrical Characteristic (Ta=0~70 °C, VDD=5.0V±5%, VSS=0V) Symbol Parameter Condition Min Typ Max Unit XTAL (VDD to 2.3V) DC 4 MHz XTAL (VDD to 3V) DC 8 MHz XTAL (VDD to 5V) Two cycle with two clocks DC 20 MHz ERC (VDD to 5V) R: 5.1K Ω, C: 100 pF F ±30% 830 F±30% KHz IRC (VDD to 5 V) 4MHz, 1MHz, 455KHz, 32.768KHz F ±35% F F ±35% Hz Fxt IC, ER (VDD to 5V) R: 51K Ω F ±30% 4.3 F ±30% MHz IIL Input Leakage Current for input pins VIN = VDD, VSS ±1 µA VIH1 Input High Voltage (VDD=5V) Ports 5, 6 2.0 V VIL1 Input Low Voltage (VDD=5V) Ports 5, 6 0.8 V VIHT1 Input High Threshold Voltage (VDD=5V) /RESET, TCC 2.0 V VILT1 Input Low Threshold Voltage (VDD=5V) /RESET, TCC 0.8 V VIHX1 Clock Input High Voltage ,(VDD=5V) OSCI 2.5 V VILX1 Clock Input Low Voltage(VDD=5V) OSCI 1.0 V VIH2 Input High Voltage (VDD=3V) Ports 5, 6 1.5 V VIL2 Input Low Voltage (VDD=3V) Ports 5, 6 0.4 V VIHT2 Input High Threshold Voltage (VDD=3V) /RESET, TCC 1.5 V VILT2 Input Low Threshold Voltage (VDD=3V) /RESET, TCC 0.4 V VIHX2 Clock Input High Voltage (VDD=3V) OSCI 1.5 V VILX2 Clock Input Low Voltage (VDD=3V) OSCI 0.6 V VOH1 Output High Voltage (Ports 5, 6) IOH = -9.0 mA 2.4 V VOL1 Output Low Voltage (Ports 5, 6) IOL = 9.0 mA 0.4 V VOH2 Output High Voltage (P67 set to IR OUT) IOH = -20.0 mA 2.4 V VOL2 Output Low Voltage (P67 set to IR OUT) IOL = 20.0 mA 0.4 V IPH Pull-high current Pull-high active, input pin at VSS -50 -100 -240 µA IPD Pull-down current Pull-down active, input pin at VDD 25 50 120 µA ISB1 Power down current All input and I/O pins at VDD, output pin floating, WDT dis abled 1 µA ISB2 Power down current All input and I/O pins at VDD, output pin floating, WDT enabled 1 10 µA ICC1 Operating supply current (VDD=3V) at two clocks /RESET= 'High', Fosc=32KHz (Crystal type, two clocks), output pin floating, WDT disabled 15 30 µA ICC2 Operating supply current (VDD=3V) at two clocks /RESET= 'High', Fosc=32KHz (Crystal type, two clocks), output pin floating, WDT enabled 19 35 µA ICC3 Operating supply current (VDD=5.0V) at two clocks /RESET= 'High', Fosc=2MHz (Crystal type, two clocks), output pin floating 2.0 mA ICC4 Operating supply current (VDD=5.0V) at two clocks /RESET= 'High', Fosc=4MHz (Crystal type, two clocks), output pin floating 4.0 mA * These parameters are characterizes and tested. |
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