White Electronic Designs
Asynchronous SRAM, 3.3V, 512Kx24
FEATURES
512Kx24 bit CMOS Static
Random Access Memory Array
Fast Access Times: 10, 12, and 15ns
Master Output Enable and Write Control
TTL Compatible Inputs and Outputs
Fully Static, No Clocks
119 Lead BGA (JEDEC MO-163), No. 391
Small Footprint, 14mmx22mm
Multiple Ground Pins for Maximum Noise
Immunity
WED8L24513V
DESCRIPTION
The WED8L24513VxxBC is a 3.3V, twelve megabit SRAM
constructed with three 512Kx8 die mounted on a multi-layer
laminate substrate. With 10 to 15ns access times, x24 width
and a 3.3V operating voltage, the WED8L24513V is ideal
for creating a single chip memory solution for the Motorola
DSP5630x (Figure 7) or a two chip solution for the Analog
Devices SHARC
TM
DSP (Figure 8).
The single or dual chip memory solutions offer improved
system performance by reducing the length of board traces
and the number of board connections compared to using
multiple monolithic devices.
The JEDEC Standard 119 lead BGA provides a 61% space
savings over using three 512Kx8, 400 mil wide SOJs and the
BGA package has a maximum height of 110 mils compared
to 148 mils for the SOJ packages.
Surface Mount Package
Single +3.3V (±5%) Supply Operation
DSP Memory Solution
Motorola DSP5630x
Analog Devices SHARC
TM
PIN CONFIGURATION
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
1
NC
NC
I/012
I/013
I/014
I/015
I/016
I/017
NC
I/018
I/019
I/020
I/021
I/022
I/023
NC
NC
2
AO
A5
NC
V
CC
GND
V
CC
GND
V
CC
GND
V
CC
GND
V
CC
GND
V
CC
A18
A9
A13
3
A1
A6
NC
GND
V
CC
GND
V
CC
GND
V
CC
GND
V
CC
GND
V
CC
GND
NC
A10
A14
4
A2
E#
NC
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
NC
W#
G#
5
A3
A7
NC
GND
V
CC
GND
V
CC
GND
V
CC
GND
V
CC
GND
V
CC
GND
NC
A11
A15
6
A4
A8
NC
V
CC
GND
V
CC
GND
V
CC
GND
V
CC
GND
V
CC
GND
V
CC
A17
A12
A16
7
NC
NC
I/00
I/01
I/02
I/03
I/04
I/05
NC
I/06
I/07
I/08
I/09
I/010
I/011
NC
NC
A0-18
E#
W#
G#
DQ0-23
V
CC
GND
NC
PIN NAMES
Address Inputs
Chip Enable
Master Write Enable
Master Output Enable
Common Data Input/Output
Power (3.3V ±5%)
Ground
No Connection
BLOCK DIAGRAM
A0-A18
G#
W#
E#
19
512K x 24
Memory
Array
DQ0-7
DQ8-15
DQ16-23
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
Aug, 2002
Rev. 0A
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
ABSOLUTE MAXIMUM RATINGS
Voltage on any pin relative to VSS
Operating Temperature TA (Ambient)
Commercial
Industrial
Storage Temperature
Power Dissipation
Output Current.
-0.5V to 4.6V
0°C to + 70°C
-40°C to +85°C
-55°C to +125°C
1.5 Watts
50 mA
Parameter
Supply Voltage
Supply Voltage
Input High Voltage
Input Low Voltage
Sym
V
CC
V
SS
V
IH
V
IL
WED8L24513V
RECOMMENDED DC OPERATING CONDITIONS
Min
3.135
0
2.2
-0.3
Typ
3.3
0
--
--
Max
3.465
0
V
CC
+0.3
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.
FIG. 1
FIG. 2
V
CC
319
Ω
Q
Z0 = 50Ω
65 pF
R
L
= 50Ω
D
OUT
353
Ω
5 pF
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
, Figure 2
V
SS
to 3.0V
5ns
1.5V
Figure 1
V
L
= 1.5V
DC ELECTRICAL CHARACTERISTICS
Parameter
Operating Power Supply Current
Standby (TTL) Supply Current
Full Standby CMOS
Supply Current
Input Leakage Current
Output Leakage Current
Output High Volltage
Output Low Voltage
Sym
I
CC1
I
CC2
I
CC3
I
LI
I
LO
V
OH
V
OL
Conditions
W# = V
IL
, II/O = 0mA,
Min Cycle
E# > V
IH
, V
IN
< V
IL
or
V
IN
> V
IH
, f=ØMH
Z
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
= 4.0mA
Min
Max
10ns
450
150
90
±10
±10
2.4
0.4
0.4
12-15ns
350
150
90
±10
±10
Units
mA
mA
mA
µA
µA
V
V
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
CC2
,I
CC3
I
CC1
I
CC1
I
CC1
CAPACITANCE
(f = 1.0MH
Z
, V
IN
= V
CC
or V
SS
)
Parameter
Address Lines
Data Lines
Write & Output Enable Lines
Chip Enable Lines
Sym
CA
CD/Q
W#, G#
EØ# - E2#
Max
8
10
8
8
Unit
pF
pF
pF
pF
These parameters are sampled, not 100% tested.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
Aug, 2002
Rev. 0A
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)
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
OLZ
t
OHZ
10ns
Min
10
Max
10
10
3
5
3
5
0
5
0
6
3
6
0
3
6
3
12ns
Min
12
Max
12
12
3
15ns
Min
15
WED8L24513V
Max
15
15
7
7
7
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTE 1: Parameter is guaranteed, but not tested.
FIG. 3 READ CYCLE 1 - W# HIGH, G#, E# LOW
t
AVAV
A
ADDRESS 1
ADDRESS 2
t
AVQV
Q
t
AVQX
DATA 1
DATA 2
FIG. 4 READ CYCLE 2 - W# HIGH
t
AVAV
A
t
AVQV
E#
t
ELQV
t
ELQX
G#
t
EHQZ
t
GLQV
t
GLQX
Q
t
GHQZ
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
Aug, 2002
Rev. 0A
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)
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
10ns
Min
10
8
8
0
0
8
8
8
8
0
0
0
0
0
6
6
3
Max
12ns
Min
12
9
9
0
0
9
9
10
10
0
0
0
0
0
6
6
3
Max
Min
15
9
9
0
0
10
10
11
11
0
0
0
0
0
7
7
3
WED8L24513V
15ns
Max
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5
6
7
NOTE 1: Parameter is guaranteed, but not tested.
FIG. 5 WRITE CYCLE 1 - W# CONTROLLED
t
AVAV
A
t
AVWH
t
ELWH
E#
t
WHAX
t
AVWL
W#
t
WLWH
t
DVWH
D
t
WHDX
DATA VALID
t
WLQZ
Q
HIGH Z
t
WHQX
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
Aug, 2002
Rev. 0A
4
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
FIG. 6 WRITE CYCLE 2 - E# CONTROLLED
WED8L24513V
t
AVAV
A
t
AVEH
t
ELEH
E#
t
EHAX
t
AVEL
W#
t
WLEH
t
DVEH
t
EHDX
D
DATA VALID
HIGH Z
Q
ORDERING INFORMATION
Commercial (0°C to +70)
Part Number
WED8L24513V10BC
WED8L24513V12BC
WED8L24513V15BC
Speed
(ns)
10
12
15
Package
No.
391
391
391
Industrial (-40°C to +85°C)
Part Number
WED8L24513V12BI
WED8L24513V15BI
Speed
(ns)
12
15
Package
No.
391
391
PACKAGE NO. 391
119 LEAD BGA
JEDEC MO-163
7.62 (0.300)
TYP
A
B
C
D
E
F
G
0.110 MAX
14.00 (0.551) TYP
R 1.52 (0.062)
MAX (4x)
A1
CORNER
1.27 (0.050)
TYP
20.32 (0.800)
TYP
H
J
K
L
M
N
P
R
T
U
22.00 (0.866)
TYP
1.27 (0.050) TYP
0.711 (0.028)
MAX
ALL LINEAR DIMENSIONS ARE IN MILLIMETERS AND PARENTHETICALLY IN INCHES
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
Aug, 2002
Rev. 0A
5
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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