DP8344 datasheet(100/184 Pages) NSC

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TABLE 5-4 Data Memory Write Timing (Note 1)

50 Device Specifications (Continued)

TABLE 5-4 Data Memory Write Timing (Note 1)

Symbol

Parameter

Formula

Min

Max

Units

tW-ALE

ALE High

(nRWa1)Tab10

tPD-AAD-ALE

A AD (Data Address) Valid to ALE Falling

Tab22

tPD-ALE-AD

ALE Falling to AD (Data Address) Invalid

TLab2ns

tPD-DATA-WR

AD (Data) Valid to WRITE Rising

(MAX(nDW nIWb1)a1)Tab20

tPD-AAD-WR

A AD (Data Address) Valid to WRITE Falling

15Tab28

tPD-WR-DATA

WRITE Falling to AD (Data) Valid

tPD-WR-DATAz

WRITE Rising to AD (Data) Invalid

THab4ns

tW-WR

WRITE Low

(MAX(nDW nIWb1)a1)Tab10

tPD-ALE-AAD

ALE Rising to A AD (Data Address) Valid

(nRW)Ta

tPD-WR-A

WRITE Rising to A Invalid

THab2ns

Note 1

All parameters are individually tested and guaranteed Interpreting this data by numerically adding two or more parameters to create a new timing

specification may lead to invalid results

TLF9336 – 53

FIGURE 5-4 Data Memory Write Timing

100

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