dp8344b National Semiconductor Corporation, dp8344b Datasheet - Page 119

• Manufacturer Part Number: dp8344b
• Description: Biphase Communications Processor?bcp
• Manufacturer: National Semiconductor Corporation

t
t
t
t
t
t
t
t
t
t
t
t
t
t
5 0 Device Specifications
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
SU-RRW-CO
H-RRW-X
SU-CMD-RRW
H-CMD-RRW
PD-RRW-X
PD-Xf-LCLr
PD-LCL-X
PD-Xr-LCLf
PD-LCL-WR
PD-WR-X
PD-X-WR
AZ-AAD-LCL
ZA-LCL-AAD
W-WR
Symbol
ID
10
11
12
13
14
1
2
3
4
5
6
7
8
9
RAE REM-WR Falling before CLK-OUT Rising
RAE REM-WR Rising after XACK Rising
CMD Valid before RAE REM-WR Falling
CMD Invalid after RAE REM-WR Falling
RAE REM-WR Falling to XACK Falling
XACK Falling to LCL Rising
LCL Rising to XACK Rising
XACK Rising to LCL Falling
LCL Rising to WRITE Falling
WRITE Falling to XACK Rising
XACK Rising to WRITE Rising
A AD Disabled before LCL Rising
A AD Enabled after LCL Falling
WRITE Low
TABLE 5-21 Fast Buffered Write of DMEM (Note 1)
FIGURE 5-21 Fast Buffered Write of DMEM
(Continued)
Parameter
119
(n
(n
(n
(n
LW
DW
DW
DW
Formula
T
T
T
T
T
a
a
a
a
H
L
a
a
a
a
a
1)T
2)T
1)T
1)T
a
a
a
a
b
b
b
b
b
b
Min
b
b
b
24
26
0
0
10
11
16
20
10
10
5
5
4
Max
26
11
13
8
TL F 9336 – 75
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns