dp8344b National Semiconductor Corporation, dp8344b Datasheet - Page 109

• 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
Note 2 The maximum value for this parameter is the latest RAE REM-RD can be removed without adding a T-state to the remote access
SU-RRR-CO
H-RRR-X
SU-CMD-RRR
H-CMD-RRR
PD-RRR-X
PD-X-LCL
PD-LCL-X
PD-RRR-LCL
PD-LCL-RD
PD-RD-X
PD-RRR-RD
AZ-AAD-LCL
ZA-LCL-AAD
W-RD
Symbol
ID
10
11
12
13
14
1
2
3
4
5
6
7
8
9
RAE REM-RD Falling before CLK-OUT Rising
RAE REM-RD Rising after XACK Rising (Note 2)
CMD Valid before RAE REM-RD Falling
CMD Invalid after RAE REM-RD Falling
RAE REM-RD Falling to XACK Falling
XACK Falling to LCL Rising
LCL Rising to XACK Rising
RAE REM-RD Rising to LCL Falling
LCL Rising to READ Falling
READ Falling to XACK Rising
RAE REM-RD Rising to READ Rising
A AD Disabled before LCL Rising
A AD Enabled after LCL Falling
Read Low
TABLE 5-12 Buffered Read of DMEM (Note 1)
(Continued)
FIGURE 5-12 Buffered Read of DMEM
Parameter
109
(n
(n
(n
(n
LW
DW
DW
DW
Formula
T
T
T
T
T
T
a
a
a
a
H
L
a
a
a
a
a
a
1)T
2)T
1)T
1)T
a
a
a
a
b
b
b
b
Min
b
b
b
22
26
0
0
3
1
10
15
20
10
5
5
4
Max
b
26
16
28
8
32
TL F 9336 – 66
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns