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M50FLW080A датащи(PDF) 44 Page - STMicroelectronics |
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M50FLW080A датащи(HTML) 44 Page - STMicroelectronics |
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44 / 64 page ![]() DC and AC parameters M50FLW080A, M50FLW080B 44/64 Figure 14. FWH/LPC interface AC signal timing waveforms CLK FWH0-FWH3/ LAD0-LAD3 VALID tCHQV tCHQZ tCHQX tCHDX tDVCH VALID OUTPUT DATA FLOAT OUTPUT DATA VALID INPUT DATA AI09700 tCHFH tFLCH FWH4 START CYCLE Table 26. FWH/LPC Interface AC signal timing characteristics Symbol PCI Symbol Parameter Value Unit tCHQV tval CLK to Data Out Min 2 ns Max 11 ns tCHQX (1) ton CLK to Active (Float to Active Delay) Min 2 ns tCHQZ toff CLK to Inactive (Active to Float Delay) Max 28 ns tAVCH tDVCH tsu Input Set-up Time(2) Min 7 ns tCHAX tCHDX th Input Hold Time(2) Min 0 ns tFLCH Input Set-up time on FWH4 Min 10 ns tCHFH Input Hold time on FWH4 Min 5 ns 1. The timing measurements for Active/Float transitions are defined when the current through the pin equals the leakage current specification. 2. Applies to all inputs except CLK and FWH4. |
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