AD9854/PCB Analog Devices Inc, AD9854/PCB Datasheet - Page 35
AD9854/PCB
Manufacturer Part Number
AD9854/PCB
Description
BOARD EVAL FOR AD9854
Manufacturer
Analog Devices Inc
Datasheet
1.AD9854ASTZ.pdf
(52 pages)
Specifications of AD9854/PCB
Rohs Status
RoHS non-compliant
Module/board Type
Evaluation Board
For Use With/related Products
AD9854
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A<5:0>
D<7:0>
A<5:0>
D<7:0>
WR
RD
A1
D1
A1
t
RDHOZ
SPECIFICATION
t
t
t
t
ADV
AHD
RDLOV
RDHOZ
D1
SPECIFICATION
t
t
t
t
t
t
t
t
t
AHD
ASU
DSU
ADH
DHD
WRLOW
WRHIGH
WR
WRHIGH
t
ASU
t
RDLOV
t
ADV
VALUE
15ns
5ns
15ns
10ns
Figure 52. Parallel Port Read Timing Diagram
Figure 53. Parallel Port Write Timing Diagram
VALUE
8.0ns
3.0ns
0ns
0ns
2.5ns
7ns
10.5ns
t
WR
t
DESCRIPTION
ADDRESS TO DATA VALID TIME (MAXIMUM)
ADDRESS HOLD TIME TO RD SIGNAL INACTIVE (MINIMUM)
RD LOW TO OUTPUT VALID (MAXIMUM)
RD HIGH TO DATA THREE-STATE (MAXIMUM)
WRLOW
Rev. E | Page 35 of 52
t
DATA HOLD TIME TO WR SIGNAL INACTIVE
WR SIGNAL MINIMUM LOW TIME
WR SIGNAL MINIMUM HIGH TIME
DESCRIPTION
ADDRESS SETUP TIME TO WR SIGNAL ACTIVE
DATA SETUP TIME TO WR SIGNAL ACTIVE
ADDRESS HOLD TIME TO WR SIGNAL INACTIVE
MINIMUM WRITE TIME
DSU
A2
D2
A2
D2
t
AHD
t
DHD
A3
D3
A3
D3
AD9854
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