X88064 Datasheet, PDF (12/15 Pages) Xicor Inc. – E2 Micro-Peripheral

X88064
WR Controlled Write Cycle
Symbol
tLHLL
tAVLL
tLLAX
tDVWH
tWHDX
tELLL
tWLWH
tWRS
tWRH
tBLC
t_WC ⁽⁷⁾
Parameter
ALE Pulse Width
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Chip Enable Setup Time
WR Pulse Width
WR Setup Time
WR Hold Time
Byte Load Time (Page Write)
Write Cycle Time
X88064 – 60
Min.
Max.
60
10
20
50
30
7
100
20
20
0.5
100
5
X88064
Min.
Max.
80
10
20
50
30
7
120
30
20
0.5
100
5
WR Controlled Write Timing Diagram
CE
ALE
A/D₀ –A/D₇
t_LHLL
t_ELLL
t_AVLL
A_IN
t_LLAX
A₈ –A₁₂
t_WRS
WRH
t
t_WRH
t_WLWH
D_IN
t_DVWH
t_WHDX
ADDRESS
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ms
7023 FRM T11
WR
7023 FRM T12
Notes: (7) TWC is the minimum cycle time to be allowed from the system perspective unless polling techniques are used. It is the maximum time
the device requires to automatically complete the internal write operation.
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