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M95640-DF 数据表(PDF) 39 Page - STMicroelectronics |
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M95640-DF 数据表(HTML) 39 Page - STMicroelectronics |
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39 / 53 page ![]() DocID16877 Rev 19 39/53 M95640-W M95640-R M95640-DF DC and AC parameters 41 Table 19. AC characteristics (M95640-R, device grade 6) Test conditions specified in Table 9 and Table 11 Symbol Alt. Parameter Previous products(1) New products(2) Unit VCC ≥ 1.8V VCC ≥ 1.8V VCC ≥ 2.5V VCC ≥ 4.5V Min. Max. Min. Max. Min. Max. Min. Max. fC fSCK Clock frequency - 2 - 5 - 10 - 20 MHz tSLCH tCSS1 S active setup time 150 - 60 - 30 - 15 - ns tSHCH tCSS2 S not active setup time 150 - 60 - 30 - 15 - ns tSHSL tCS S deselect time 200 - 90 - 40 - 20 - ns tCHSH tCSH S active hold time 150 - 60 - 30 - 15 - ns tCHSL -S not active hold time 150 - 60 - 30 - 15 - ns tCH (3) tCLH Clock high time 200 - 80 - 40 - 20 - ns tCL(3) tCLL Clock low time 200 - 80 - 40 - 20 - ns tCLCH(4) tRC Clock rise time - 2 - 2 - 2 - 2 µs tCHCL(4) tFC Clock fall time - 2 - 2 - 2 - 2 µs tDVCH tDSU Data in setup time 50 - 20 - 10 - 5 - ns tCHDX tDH Data in hold time 50 - 20 - 10 - 10 - ns tHHCH - Clock low hold time after HOLD not active 150 - 60 - 30 - 15 - ns tHLCH - Clock low hold time after HOLD active 150 - 60 - 30 - 15 - ns tCLHL - Clock low setup time before HOLD active 0- 0 - 0 - 0 - ns tCLHH - Clock low setup time before HOLD not active 0- 0 - 0 - 0 - ns tSHQZ(4) tDIS Output disable time - 200 - 80 - 40 - 20 ns tCLQV tV Clock low to output valid - 200 - 80 - 40 - 20 ns tCLQX tHO Output hold time 0 - 0 - 0 - 0 - ns tQLQH(4) tRO Output rise time - 200 - 80 - 20 - 10 ns tQHQL(4) tFO Output fall time - 200 - 80 - 20 - 10 ns tHHQV tLZ HOLD high to output valid - 200 - 80 - 40 - 20 ns tHLQZ(4) tHZ HOLD low to output High-Z - 200 - 80 - 40 - 20 ns tW tWC Write time - 5 - 5 - 5 - 5 ms 1. For devices identified by process letter P. 2. For devices identified by process letter K. 3. tCH + tCL must never be less than the shortest possible clock period, 1 / fC(max). 4. Characterized only, not tested in production. |
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