M95020-R datasheet(36/46 Pages) STMICROELECTRONICS

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DC and AC parameters

M950x0-W M950x0-R M950x0-DF

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DocID6512 Rev 13

Table 19. AC characteristics (M950x0-R or M95040-DF, device grade 6)(1)

1. The timing values described in this table are recommended for new designs.

Test conditions specified in Table 10 or Table 11 and Table 12(2)

2. If the application uses the M950x0-R or M95040-DF devices at 2.5 V

≤VCC ≤5.5 V and -40 °C ≤TA ≤+85 °C,

please refer to Table 18: AC characteristics (M950x0-W, device grade 6), rather than to the above table.

Symbol

Alt.

Parameter

Min.

Max.

Unit

fSCK Clock frequency

D.C.

MHz

tSLCH

tCSS1 S active setup time

tSHCH

tCSS2 S not active setup time

tSHSL

tCS S deselect time

tCHSH

tCSH S active hold time

tCHSL

-S not active hold time

tCH(3)

3. tCH + tCL must never be lower than the shortest possible clock period, 1/fC(max).

tCLH Clock high time

tCL(3)

tCLL Clock low time

tCLCH(4)

4. Characterized only, not tested in production.

tRC Clock rise time

µs

tCHCL(4)

tFC Clock fall time

µs

tDVCH

tDSU Data in setup time

tCHDX

tDH Data in hold time

tHHCH

Clock low hold time after HOLD not active

tHLCH

Clock low hold time after HOLD active

tCLHL

Clock low set-up time before HOLD active

tCLHH

Clock low set-up time before HOLD not active

tSHQZ(4)

tDIS Output disable time

tCLQV

Clock low to output valid

tCLQX

tHO Output hold time

tQLQH(4)

tRO Output rise time

tQHQL(4)

tFO Output fall time

tHHQV

tLZ HOLD high to output valid

tHLQZ(4)

tHZ HOLD low to output high-Z

tWC Write time

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