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M95320-R 데이터시트(PDF) 36 Page - STMicroelectronics |
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M95320-R 데이터시트(HTML) 36 Page - STMicroelectronics |
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36 / 48 page ![]() DC and AC parameters M95320-W M95320-R M95320-DR 36/48 Doc ID 5711 Rev 14 Table 17. AC characteristics (M95320-W, device grade 6) Test conditions specified in Table 10 and Table 11 Symbol Alt. Parameter Min. Max. Min. Max. Unit VCC = 2.5 to 5.5 V New products VCC = 4.5 to 5.5 V fC fSCK Clock frequency D.C. 10 D.C. 20 MHz tSLCH tCSS1 S active setup time 30 15 ns tSHCH tCSS2 S not active setup time 30 15 ns tSHSL tCS S deselect time 40 20 ns tCHSH tCSH S active hold time 30 15 ns tCHSL S not active hold time 30 15 ns tCH (1) tCLH Clock high time 42 20 ns tCL (1) tCLL Clock low time 40 20 ns tCLCH (2) tRC Clock rise time 2 2 µs tCHCL (2) tFC Clock fall time 2 2 µs tDVCH tDSU Data in setup time 10 5 ns tCHDX tDH Data in hold time 10 10 ns tHHCH Clock low hold time after HOLD not active 30 15 ns tHLCH Clock low hold time after HOLD active 30 15 ns tCLHL Clock low set-up time before HOLD active 0 0 ns tCLHH Clock low set-up time before HOLD not active 0 0 ns tSHQZ (2) tDIS Output disable time 40 20 ns tCLQV (3) tV Clock low to output valid 40 20 ns tCLQX tHO Output hold time 0 0 ns tQLQH (2) tRO Output rise time 40 20 ns tQHQL (2) tFO Output fall time 40 20 ns tHHQV tLZ HOLD high to output valid 40 20 ns tHLQZ (2) tHZ HOLD low to output high-Z 40 20 ns tW tWC Write time 5 5 ms 1. tCH + tCL must never be lower than the shortest possible clock period, 1/fC(max). 2. Characterized only, not tested in production. 3. tCLQV must be compatible with tCL (clock low time): if the SPI bus master offers a Read setup time tSU = 0 ns, tCL can be equal to (or greater than) tCLQV; in all other cases, tCL must be equal to (or greater than) tCLQV+tSU. |
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