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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AM79C30AVC 데이터시트(PDF) 83 Page - Advanced Micro Devices |
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AM79C30AVC 데이터시트(HTML) 83 Page - Advanced Micro Devices |
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83 / 101 page  Am79C30A/32A Data Sheet 83 OSC (XTAL2) Timing Note: Frequency = 12.288 MHz ±80 ppm. MCLK Timing Figure 33. External Clock Driver (XTAL2) Timing Parameter Symbol Parameter Description Test Conditions Min Max Units tCLCL Oscillator Period 81.374 81.387 ns tCH High Time 33 ns tCL Low Time 33 ns tCLCH Rise Time 10 ns tCHCL Fall Time 10 ns Parameter Symbol Parameter Description Test Conditions Min Max Units tD XTAL2 VCC/2 to MCLK VCC/2 MCLK Load < 80pF 60 ns tRISE1 Rise Time MCLK Load < 80pF 0.5 V to (VCC–0.5V) 15 ns tRISE2 Rise Time MCLK Load < 40pF 1.0 V to 3.5 V 5ns tFALL1 Fall Time MCLK Load < 80pF (VCC–0.5V) to 0.5 V 15 ns tFALL2 Fall Time MCLK Load < 40pF 3.5 V to 1.0 V 5ns tPWH High Pulse Width 12.288 MHz 6.144 MHz 4.069 MHz 3.072 MHz 1.536 MHz 768 kHz 384 kHz MCLK Load < 80pF 33 73 114 155 317 643 1.294 ns ns ns ns ns ns µs tPWL Low Pulse Width 12.288 MHz 6.144 MHz 4.096 MHz 3.072 MHz 1.536 MHz 768 kHz 384 kHz MCLK Load < 80pF 33 73 114 155 317 1.294 ns ns ns ns ns µs 09893H-25 tCHCL tCLCH tCLCL tCL 0.5 V VCC – 0.5 V* tCH Note: *Not TTL VIH |
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