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8041
AJ8641AJ8741
A
A.C.
CHARACTERISTICS-PORT 2
TA=O·C
to
70·C,
8041A:
vcc=
+5V
: 10%, 8741A:
Vcc=
+5V
:5%
Symbol
P.arameter
tcp Port Control
Setup Before Failing
Edge of
PROG
tpc Port Control Hold After Falling
Edge of
PROG
tPR
PROG
to Time
P2
Input Must
Be
Valid
tpF
Input Data Hold Time
top
Output Data Setup Time
tpo
Output Data Hold Time
tpp
PROG
Pulse Width
PORT 2 TIMING
EXPANDER
PORT
SYNC
EXPANDER
PORT
INPUT
PROG
PORT
20-3
DATA
PORT
20-3
DATA
A.C.
CHARACTERISTICS-DMA
Symbol Parameter
tACC
DACK
to
WR
or"RD
tCAC
~orWAto~
tAco
DACK
to
Data Valid
tCRO
RD
or
WR
to
ORO
Cleared
WAVEFORMS-DMA
IIIi
'ACC
.:--iCAC-
-
.1,...----,.
)I(
VALID
DATA
BUS
~I-
-
ORa
Min.
110
100
0
250
65
1200
Min.
0
0
l
-
tAce
-
Max. Unit
ns
ns
810
ns
150
ns
ns
ns
ns
Max. Unit
ns
ns
225 ns
200 ns
-ICAe
-
,..---,.
VALID
-
Ii
_.CRJ-
9-129
Telt
Condition.
Test Conditions
C
L
= 150 pF
Da,88A