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AT83C5111 数据表(PDF) 78 Page - ATMEL Corporation |
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AT83C5111 数据表(HTML) 78 Page - ATMEL Corporation |
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78 / 86 page ![]() 78 AT8xC5111 4190A–8051–11/02 Serial Port Timing - Shift Register Mode Table 6. Symbol Description Table 7. AC Parameters for a Fix Clock Table 8. AC Parameters for a Variable Clock: Derat ing Formula Symbol Parameter T XLXL Serial port clock cycle time T QVHX Output dat a set-up to clock rising edge T XHQX Output dat a hold after clock rising edge T XHDX Input dat a hold after clock rising edge T XHDV Clock rising edge to input dat a valid Speed -L (VCC = 5V) X2 mode 33 MHz 66 MHz equiv. -L (V CC = 5V) Standard Mode 40 MHz -L (VCC = 3V) X2 Mode 33 MHz 66 MHz equiv. -L (V CC = 3V) Standard Mode 40 MHz Units Symbol Min Max Min Max Min Max Min Max TXLXL 180 300 300 300 ns TQVHX 100 200 200 200 ns TXHQX 10 30 30 30 ns TXHDX 0000 ns TXHDV 17 117 17 117 ns Symbol Type Standard Clock X2 Clock -L (Vcc = 5V) -L (Vcc = 3V) Units TXLXL Min 12 T 6 T ns TQVHX Min 10 T - x 5 T - x 50 50 ns TXHQX Min 2 T - x T - x 20 20 ns TXHDX Min x x 0 0 ns TXHDV Max 10 T - x 5 T- x 133 133 ns |
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