Maxim Integrated DS80C390 - Manual (Page 45)

DS80C390
45 of 58 110199
MOVX CHARACTERISTICS (Non-multiplexed address/data bus)
PARAMETER SYMBOL MIN MAX UNITS STRETCH
VALUES
C
ST
(MD2:0)
t
PXIZ
0.5 t
MCS
-5 C
ST
=0
0.75 t
MCS
-5 1
≤
C
ST
≤
3
Input Instruction Float after
PSEN
2.75 t
MCS
-10 ns 4
≤
C
ST
≤
7
PSEN High to Data Address,
Port 4 CE, Port 5 PCE Valid
t
PHAV
0.25 t
MCS
-5 ns
RD Pulse Width
t
RLRH
0.5 t
MCS
-5 ns C
ST
=0
C
ST
•
t
MCS
-10 1
≤
C
ST
≤
7
WR Pulse Width
t
WLWH
0.5 t
MCS
-5 ns C
ST
=0
C
ST
•
t
MCS
-10 1
≤
C
ST
≤
7
RD Low to Valid Data In
t
RLDV
0.5 t
MCS
-20 ns C
ST
= 0
C
ST
•
t
MCS
-20 1
≤
C
ST
≤
7
Data Hold after Read t
RHDX
0 ns
Data Float after Read t
RHDZ
0.5 t
MCS
-5 ns C
ST
= 0
0.75t
MCS
-5 1
≤
C
ST
≤
3
1.75 t
MCS
-5 4
≤
C
ST
≤
7
PSEN High to WR Low
t
PHWL
0.5 t
MCS
-5 ns C
ST
= 0
0.75t
MCS
-5 1
≤
C
ST
≤
3
2.75 t
MCS
-5 4
≤
C
ST
≤
7
Data Float after Read t
PHRL
0.5 t
MCS
-5 ns C
ST
= 0
0.75t
MCS
-5 1
≤
C
ST
≤
3
2.75 t
MCS
-5 4
≤
C
ST
≤
7
t
AVDV1
0.75 t
MCS
-20 ns C
ST
= 0
(C
ST
+0. 5)
•
t
MCS
-20 1
≤
C
ST
≤
3
Port 1 Address, Port 4 CE, Port
5 PCE to Valid Data In
(C
ST
+2.5)
•
t
MCS
-20 4
≤
C
ST
≤
7
t
AVDV2
0.875 t
MCS
-20 ns C
ST
= 0
(C
ST
+0.625)
•
t
MCS
-20 1
≤
C
ST
≤
3
Port 2, 4 Address to Valid Data
In
(C
ST
+2.625)
•
t
MCS
-20 4
≤
C
ST
≤
7
t
AVWL1
0.25 t
MCS
-5 ns C
ST
= 0
0.5t
MCS
-5 1
≤
C
ST
≤
3
Port 0 Address, Port 4 CE, Port
5 PCE to RD or WR Low
2.5 t
MCS
-10 4
≤
C
ST
≤
7
t
AVWL2
0.375 t
MCS
-5 ns C
ST
= 0
0.625t
MCS
-5 1
≤
C
ST
≤
3
Port 2, 4 Address to RD or WR
Low
2.625 t
MCS
-10 4
≤
C
ST
≤
7
Data Valid to WR Transition
t
QVWX
-5 ns
Data hold after WR high
t
WHQX
0.25 t
MCS
-5 ns C
ST
= 0
0.5t
MCS
-5 1
≤
C
ST
≤
3
1.5 t
MCS
-10 4
≤
C
ST
≤
7
t
WHCEH
0 10 ns C
ST
= 0
0.25 t
MCS
-5 0.25 t
MCS
+5 1
≤
C
ST
≤
3
RD or WR High to ALE, Port 4
CE or Port 5 PCE High
1.25 t
MCS
-5 1.25 t
MCS
+5 4
≤
C
ST
≤
7