Absolute Maximum Ratings:
Parameter
Symbol
Voltage at any input
V
IN
Supply Voltage
V
DD
Operating Temperature
T
A
Storage Temperature
T
STG
Values
V
SS
- 0.3 to V
DD
+ 0.3
+7.0
-25 to +85
-65 to +150
Unit
V
V
oC
oC
DC Electrical Characteristics.
(T
A
= -25˚C to +85˚C, V
DD
= 3V to 5.5V)
Parameter
Supply Voltage
Supply Current
Input Logic Low
Input Logic High
Output Low Voltage
Output High Voltage
Input Leakage Current
Data Bus Leakage Current
Data Bus Source Current
Data Bus Sink Current
FLGa, FLGb, INT/ Source
FLGa, FLGb, INT/ Sink
Symbol
V
DD
I
DD
V
IL
V
IH
V
OL
V
OH
I
ILK
I
DLK
I
OSRC
I
OSNK
I
OSRC
I
OSNK
Min. Value
3.0
-
-
0.5V
DD
-
V
DD
- 0.5
-
-
3.0
8.0
1.0
6.0
Max.Value
5.5
800
0.15V
DD
-
0.5
-
30
60
-
-
-
-
Unit
V
µA
V
V
V
V
nA
nA
mA
mA
mA
mA
Remarks
-
All clocks off
-
-
I
OSNK
= 5mA, V
DD
= 5V
I
OSRC
= 1mA, V
DD
= 5V
-
Data bus off
V
O
= V
DD
- 0.5V, V
DD
= 5V
V
O
= 0.5V, V
DD
= 5V
V
O
= V
DD
- 0.5V, V
DD
= 5V
V
O
= 0.5V, V
DD
= 5V
Transient Characteristics.
(T
A
= -25˚ to +85˚C)
For V
DD
= 3V to 5.5V
Parameter
Symbol
Min. Value
Read Cycle
(See Fig. 2)
RD/ Pulse Width
t
r1
80
CS/ Set-up Time
t
r2
80
CS/ Hold Time
t
r3
0
RS<2:0> Set-up Time
t
r4
80
RS<2:0> Hold Time
t
r5
10
CHS<1:0> Set-up Time
t
r6
80
CHS<1:0> Hold Time
t
r7
10
DB<7:0> AccessTime
t
r8
80
DB<7:0> Release Time
Back to Back Read delay
Write Cycle
(See Fig. 3)
WR/ Pulse Width
CS/ Set-up Time
CS/ Hold Time
RS<2:0> Set-up Time
RS<2:0> Hold Time
CHS<1:0> Set-up Time
CHS<1:0> Hold Time
DB<7:0> Set-up Time
DB<7:0> Hold Time
Back to Back Write Delay
t
r9
t
r10
-
10
Max.Value
-
-
-
-
-
-
-
-
35
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Remarks
-
-
-
-
-
-
-
Access starts when both
RD/ and CS/ are low.
Release starts when either
RD/ or CS/ is terminated.
-
t
W1
t
W2
t
W3
t
W4
t
W5
t
W6
t
W7
t
W8
t
W9
t
W10
45
45
0
45
10
45
10
45
10
90
-
-
-
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
-
-
-
-
-
-
-
-
-
-
7566R-121405-7
LSI [ LSI COMPUTER SYSTEMS ]
