DP8344 datasheet(129/184 Pages) NSC

129 / 184 page

50 Device Specifications (Continued)

TABLE 5-27 Remote Interface WAIT Timing (Note 1)

(Continued)

Symbol

Parameter

Formula

Min

Max

Units

tH-WT-RD

WAIT Rising after READ Falling

(nDWTaTHab4ns

(Buffered Read and Latched Read) (Note 2)

(nDWa1)TaTHab30

tH-WT-WR

WAIT Rising after WRITE Falling (Slow Buffered Write

(nDW)TaTHab5ns

Fast Buffered Write and Latched Write) (Note 2)

(nDWa1)TaTHab34

tH-WT-IWR

WAIT Rising after IWR Falling (Slow Buffered Write

(nIWa1)TaTHab5ns

Fast Buffered Write and Latched Write) (Note 2)

(nIWa2)TaTHab38

tPD-WT-X

WAIT Rising to XACK Rising (Buffered Read Latched

TLa

0ns

Read Slow Buffered Write and Fast Buffered Write)

TaTLa

tPD-WT-LCL

WAIT Rising to LCL Falling (Latched Write)

TaTLa

1ns

2TaTLa

tPD-WT-WR

WAIT Rising to WRITE Rising (Latched Write)

TLa

2ns

TaTLa

tPD-WT-IWR

WAIT Rising to IWR Rising (Latched Write)

TLa

4ns

TaTLa

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

Note 2

The maximum value for this parameter is the latest WAIT can be removed without adding an additional T-state The formula assumes a minimum external

wait of one T-state

TLF9336 – B5

(a) Buffered Read Latched Read Slow Buffered

Write and Fast Buffered Write

TLF9336 – B6

(b) Latched Write

FIGURE 5-27 Remote Interface WAIT Timing

129

DP8344 Datasheet(PDF) 129 Page - National Semiconductor (TI)

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