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AM186 Datasheet(PDF) 102 Page - Advanced Micro Devices |
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AM186 Datasheet(HTML) 102 Page - Advanced Micro Devices |
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102 / 112 page  102 Am186TMER and Am188TMER Microcontrollers Data Sheet DRAF T Switching Characteristics over Commercial and Industrial Operating Ranges Synchronous Serial Interface (SSI) (25 MHz and 33 MHz) Note: All timing parameters are measured at VCC/2 with 50 pF loading on CLKOUTA, unless otherwise noted. All output test conditions are with CL=50 pF. For switching tests, VIL=0.3 V and VIH =VCC–0.3 V. Switching Characteristics over Commercial and Industrial Operating Ranges Synchronous Serial Interface (SSI) (40 MHz and 50 MHz) Note: All timing parameters are measured at VCC/2 with 50 pF loading on CLKOUTA, unless otherwise noted. All output test conditions are with CL=50 pF. For switching tests, VIL=0.3 V and VIH =VCC–0.3 V. Preliminary Parameter 25 MHz 33 MHz No. Symbol Description Min Max Min Max Unit Synchronous Serial Port Timing Requirements 75 tDVSH Data Valid to SCLK High 10 8 ns 77 tSHDX SCLK High to SPI Data Hold 3 2 ns Synchronous Serial Port Timing Responses 71 tCLEV CLKOUTA Low to SDEN1 or SDEN0 Valid 20 0 15 ns 72 tCLSL CLKOUTA Low to SCLK Low 20 0 15 ns 78 tSLDV SCLK Low to Data Valid 20 0 15 ns Preliminary Parameter 40 MHz 50 MHz No. Symbol Description Min Max Min Max Unit Synchronous Serial Port Timing Requirements 75 tDVSH Data Valid to SCLK High 5 5 ns 77 tSHDX SCLK High to SPI Data Hold 2 2 ns Synchronous Serial Port Timing Responses 71 tCLEV CLKOUTA Low to SDEN1 or SDEN0 Valid 0 12 0 10 ns 72 tCLSL CLKOUTA Low to SCLK Low 0 12 0 10 ns 78 tSLDV SCLK Low to Data Valid 0 12 0 10 ns |
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