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MPC823 датащи(PDF) 50 Page - Freescale Semiconductor, Inc |
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MPC823 датащи(HTML) 50 Page - Freescale Semiconductor, Inc |
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50 / 70 page ![]() MPC823 ELECTRICAL SPECIFICATIONS Table 13. Serial Communication Controller in NMSI External Timing NUM CHARACTERISTIC 25MHZ 40MHZ 50MHZ UNIT MIN MAX MIN MAX MIN MAX 100 RCLK1 and TCLK1 width high1 CLKOUT F Ñ CLKOUT F Ñ CLKOUT F Ñ MHz 101 RCLK1 and TCLK1 width low CLKOUT +5ns Ñ CLKOUT +5ns Ñ CLKOUT +5ns Ñns 102 RCLK1 and TCLK1 rise and fall times Ñ 15 Ñ 15 Ñ 15 ns 103 TXD2 active delay (from TCLK1 falling edge) 050050050 ns 104 RTS1 active/inactive delay (from TCLK1 falling edge) 050050050 ns 105 CTS1 setup time to TCLK1 rising edge 5Ñ5Ñ5Ñ ns 106 RXD2 setup time to RCLK1 rising edge 5Ñ5Ñ5Ñ ns 107 RXD2 hold time from RCLK1 rising edge2 5Ñ5Ñ5Ñ ns 108 CD1 setup time to RCLK1 rising edge 5Ñ5Ñ5Ñ ns NOTES: 1. The ratio SyncCLK/RCLK1 and SyncCLK/TCLK1 must be greater than or equal to 2.25/1. 2. Applies to CD and CTS hold time when they are used as external sync signals. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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