AD9854ASQ Analog Devices Inc, AD9854ASQ Datasheet - Page 34

• Manufacturer Part Number: AD9854ASQ
• Manufacturer: Analog Devices Inc

Specifications of AD9854ASQ

• Lead Free Status / RoHS Status: Not Compliant

AD9854
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
t
RDLOV
ADV
VALUE
15ns
5ns
15ns
10ns
Figure 53. Parallel Port Write Timing Diagram
Figure 52. Parallel Port Read 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
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t
DESCRIPTION
ADDRESS SETUP TIME TO WR SIGNAL ACTIVE
DATA SETUP TIME TO WR SIGNAL ACTIVE
ADDRESS HOLD TIME TO WR SIGNAL INACTIVE
DATA HOLD TIME TO WR SIGNAL INACTIVE
WR SIGNAL MINIMUM LOW TIME
WR SIGNAL MINIMUM HIGH TIME
MINIMUM WRITE TIME
DSU
A2
D2
A2
D2
t
AHD
t
DHD
A3
D3
A3
D3