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DP8344 Datasheet(PDF) 123 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP8344
Description  Biphase Communications Processor?좦CP
PDF  184 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP8344 Datasheet(HTML) 123 Page - National Semiconductor (TI)

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50 Device Specifications (Continued)
TABLE 5-24 Latched Write of DMEM (Note 1)
Symbol
ID
Parameter
Formula
Min
Max
Units
tSU-RRW-CO
1
RAE REM-WR Falling before CLK-OUT Rising
24
ns
tH-RRW-CO
2
RAE REM-WR Rising after CLK-OUT Rising (Note 2)
THa
6ns
Tab20
ns
tH-RRW-X
3
RAE REM-WR Rising after XACK Rising
0
ns
tSU-CMD-RRW
4
CMD Valid before RAE REM-WR Falling
0
ns
tH-CMD-RRW
5
CMD Invalid after RAE REM-WR Falling
Ta
26
ns
tPD-RRW-X
6
RAE REM-WR Falling to XACK Falling
26
ns
tPD-LCL-WR
7
LCL Rising to WRITE Falling
Tab5ns
tPD-WR-LCL
8
WRITE Rising to LCL Falling
Tab11
ns
tAZ-AAD-LCL
9
A AD Disabled before LCL Rising
TLab20
ns
tZA-LCL-AAD
10
A AD Enabled after LCL Falling
THab10
ns
tW-WR
11
WRITE Low Time
(nDWa1)Tab10
ns
tPD-RRW-WPND
12
RAE REM-WR Rising to WR-PEND Falling
5
ns
Ta
34
ns
tSU-CMD-WPND
13
CMD Valid before WR-PEND Rising
16
ns
tH-CMD-WPND
14
CMD Invalid after WR-PEND Rising
4
ns
tSU-RRWr-CO
15
RAE REM-WR Rising before CLK-OUT Rising
20
ns
tPD-X-WPND
16
XACK Rising to WR-PEND Rising
13
ns
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 RAE REM-WR can be removed without delaying the remote access by one T-state
TLF9336 – 78
FIGURE 5-24 Latched Write of DMEM
123



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