White Electronic Designs
1Mx8 STATIC RAM CMOS, MODULE
FEATURES
1Mx8 bit CMOS Static RAM
• Access Times 20 through 35ns
• TTL Compatible Inputs and Outputs
• Fully Static, No Clocks
High Density Packaging
• JEDEC Aproved, Revolutionary Pinout
• 36 Pin DIP, No. 179
Single +5V (±10%) Supply Operation
EDI8F81026C
DESCRIPTION
The EDI8F81026C is an 8Mb CMOS Static RAM based
on two 512Kx8 Static RAMs mounted on a multi-layered
epoxy laminate (FR4) substrate.
The EDI8F81026C is packaged in a 36 pin DIP and features
the JEDEC approved, revolutionary pinout.
All inputs and outputs are TTL compatible and operate from
a single 5V supply.
Fully asynchronous, the EDI8F81026C requires no clocks
or refreshing for operation.
Pin Configuration
A0
A1
A2
A3
A4
E#
DQ0
DQ1
V
CC
V
SS
DQ2
DQ3
W#
A5
A6
A7
A8
A9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
NC
A19
A18
A17
A16
G#
DQ7
DQ6
V
SS
V
CC
DQ5
DQ4
A15
A14
A13
A12
A11
A10
Pin Description
A0-A19
E#
W#
G#
DQ0-DQ7
V
CC
V
SS
NC
Address Inputs
Chip Enable
Write Enable
Output Enable
Common Data Input/Output
Power (+5V±10%)
Ground
No Connection
Block Diagram
A0-A18
W#
G#
512k
x8
DQ0-DQ7
512k
x8
A19
E#
DECODER
July 2004
Rev. 0
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
ABSOLUTE MAXIMUM RATINGS*
Voltage on any pin relative to V
SS
Operating Temperature T
A
(Ambient)
Commercial
Industrial
Storage Temperature
Power Dissipation
Output Current
-0.5V to 7.0V
0°C to +70°C
-40°C to +85°C
-55°C to +125°C
2.0 Watt
20 mA
EDI8F81026C
RECOMMENDED DC OPERATING CONDITIONS
Parameter
Supply Voltage
Supply Voltage
Input High Voltage
Input Low Voltage
Sym
V
CC
V
SS
V
IH
V
IL
Min
4.5
0
2.2
-0.3
Typ
5.0
0
—
—
Max
5.5
0
6.0
0.8
Units
V
V
V
V
* Stress greater than those listed under "Absolute Maximum Ratings" may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions greater than those indicated
in the operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect reliability.
AC TEST CONDITIONS
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing Levels
Output Load
(Note: For t
EHQZ
, t
GHQZ
and t
WLQZ
, CL=5pF)
V
SS
to 3.0V
5ns
1.5V
1TTL, CL =35pF
TRUTH TABLE
G#
X
H
L
X
E#
H
L
L
L
W#
X
H
H
L
Mode
Standby
Output Deselect
Read
Write
Output
High Z
High Z
D
OUT
D
IN
Power
I
CC
2, I
CC
3
I
CC
1
I
CC
1
I
CC
1
CAPACITANCE
(f=1.0MHz, V
IN
=V
CC
or V
SS
)
Parameter
Address Lines
Data Lines
Chip Enable Line
Write and Output Enable Lines
These parameters are sampled, not 100% tested.
Sym
CI
CD/Q
CC
CW
Max
12
43
10
32
Unit
pF
pF
pF
pF
DC ELECTRICAL CHARACTERISTICS
Parameter
Operating Power Supply Current
Standby (TTL) Power Supply Current
Full Standby Power Supply Current (CMOS)
Input Leakage Current
Output Leakage Current
Output High Voltage
Output Low Voltage
*Typical: T
A
= 25°C, V
CC
= 5.0V
Sym
I
CC1
I
CC2
I
CC3
I
LI
I
LO
V
OH
V
OL
Conditions
W#, E# = V
IL
, I
I/O
= 0mA, Min Cycle
E > V
IH
, V
IN
< V
IL,
V
IN
> V
IH
E > V
CC
-0.2V, V
IN
> V
CC
-0.2V or V
IN
< 0.2V
V
IN
= 0V to V
CC
V I/O = 0V to V
CC
I
OH
=-4.0mA
I
OL
= 8.0mA
Min
—
—
—
—
—
2.4
—
Typ*
212
35
20
—
—
—
—
Max
120
50
12
±10
±10
—
0.4
Units
mA
mA
mA
µA
µA
V
V
July 2004
Rev. 0
2
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
AC CHARACTERISTICS READ CYCLE
Parameter
Read Cycle Time
Address Access Time
Chip Enable Access Time
Chip Enable to Output in Low Z (1)
Chip Disable to Output in High Z (1)
Output Hold from Address Change
Output Enable to Output Valid
Output Enable to Output in Low Z (1)
Output Disable to Output in High Z(1)
Note 1: Parameter guaranteed, but not tested
EDI8F81026C
Symbol
JEDEC
t
AVAV
t
AVQV
t
ELQV
t
ELQX
t
EHQZ
t
AVQX
t
GLQV
t
GLQX
t
GHQZ
Alt.
t
RC
t
AA
t
ACS
t
CLZ
t
CHZ
t
OH
t
OE
t
LOZ
t
OHZ
Min
20
20ns
Max
20
20
3
10
3
8
3
8
3
3
3
Min
25
25ns
Max
25
25
3
12
3
10
3
10
Min
35
35ns
Max
35
35
15
12
12
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
FIGURE 2 – READ CYCLE 1 - W# HIGH, G#, E# LOW
t
AVAV
A
ADDRESS 1
t
AVQV
Q
ADDRESS 2
t
AVQX
DATA 1
DATA 2
FIGURE 3 – READ CYCLE 2 - W# HIGH
t
AVAV
A
t
AVQV
E#
t
ELQV
t
ELQX
G#
t
GLQV
t
GLQX
Q
t
GHQZ
t
EHQZ
July 2004
Rev. 0
3
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
AC CHARACTERISTICS WRITE CYCLE
Parameter
Write Cycle Time
Chip Enable to End of Write
Address Setup Time
Address Valid to End of Write
Write Pulse Width
Write Recovery Time
Data Hold Time
Write to Output in High Z (1)
Data to Write Time
Output Active from End of Write (1)
Note 1: Parameter guaranteed, but not tested.
EDI8F81026C
Symbol
JEDEC
t
AVAV
t
ELWH
t
ELEH
t
AVWL
t
AVEL
t
AVWH
t
AVEH
t
WLWH
t
WLEH
t
WHAX
t
EHAX
t
WHDX
t
EHDX
t
WLQZ
t
DVWH
t
DVEH
t
WHQX
Alt.
t
WC
t
CW
t
CW
t
AS
t
AS
t
AW
t
AW
t
WP
t
WP
t
WR
t
WR
t
DH
t
DH
t
WHZ
t
DW
t
DW
t
WLZ
Min
20
15
15
0
0
15
15
15
15
0
0
0
0
0
12
12
3
20ns
Max
Min
25
20
20
0
0
15
15
20
20
0
0
0
0
0
15
15
3
25ns
Max
Min
35
30
30
0
0
20
20
25
25
0
0
0
0
0
20
20
3
35ns
Max
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
8
12
15
FIGURE 4 – WRITE CYCLE 1 - W# CONTROLLED
t
AVAV
A
E#
t
ELWH
t
AVWH
t
WLWH
W#
t
AVWL
t
DVWH
t
WHDX
DATA VALID
t
WLQZ
Q
t
WHQX
t
WHAX
D
HIGH Z
July 2004
Rev. 0
4
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
FIGURE 5 – WRITE CYCLE 2 E# CONTROLLED
t
AVAV
A
t
AVEL
E#
t
AVEH
t
WLEH
W#
t
DVEH
t
EHDX
DATA VALID
t
EHAX
t
ELEH
EDI8F81026C
D
Q
HIGH Z
ORDERING INFORMATION
Standard Power
EDI8F81026C20M6C
EDI8F81026C85M6C
EDI8F81026C35M6C
Speed (ns)
20
25
35
Package No.
179
179
179
Height*
7.37 (0.290")
7.37 (0.290")
7.37 (0.290")
Note: To order an Industrial grade product substitute the letter C in the Suffix with the letter I,
eg. EDI8F81026C20M6C becomes EDI8F81026C20M6I.
PACKAGE DESCRIPTION
Package No. 179: 36 Pin Dual-in-line Package
55.50
(2.185) MAX.
15.88
(0.625)
MAX.
P1
3.81
(0.150)
REF.
7.34
(0.290)
MAX.
2.54 (0.100) TYP.
17 X 2.54 (0.100)
43.18 (1.700) REF.
4.45 (0.175)
3.18 (0.125)
15.75 (0.620)
14.99 (0.590)
* ALL DIMENSIONS ARE IN MILLIMETERS AND (INCHES).
July 2004
Rev. 0
5
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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