EDI8L24128C
White Electronic Designs
128Kx24 Asynchronous SRAM, 5V
FEATURES
DESCRIPTION
128Kx24 bit CMOS Static
The EDI8L24128CxxBC is a 5V, three megabit SRAM
constructed with three 128Kx8 die mounted on a multi-
layer laminate substrate. With 12 to 15ns access times, x24
width and a 5V operating voltage, the EDI8L2418C is ideal
for creating a single chip memory solution for the Motorola
DSP5600x or a two chip solution for the Analog Devices
SHARC™ DSP.
Random Access Memory Array
Fast Access Times: 12 and 15ns
Master Output Enable and Write Control
TTL Compatible Inputs and Outputs
Fully Static, No Clocks
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. For example, the capacitance
load on the data lines for the BGApackage is 58% less than
a monolithic SOJ solution.
Surface Mount Package
119 Lead BGA (JEDEC MO-163), No. 391
Small Footprint, 14mm x 22mm
Multiple Ground Pins for Maximum Noise
Immunity
The JEDEC Standard 119 lead BGA provides a 44% space
savings over using 128Kx8, 300mm wide SOJs and the
BGA package has a height of 100mm compared to 148mm
for the SOJ packages.
Single +5V (±10%) Supply Operation
DSP Memory Solution
Motorola DSP5600x™
Analog Devices SHARC™
FIG. 1 PIN CONFIGURATION
Pin DESCRIPTION
1
2
3
4
5
6
7
A0-16
E#
Address Inputs
Chip Enables
A
B
C
D
E
F
NC
A
A
0
A
A
1
A
2
A
A
3
A
A
4
NC
NC
NC
5
6
E
7
8
W#
Master Write Enable
Master Output Enable
Common Data
Input/Output
DQ12
DQ13
NC
NC
NC
NC
NC
DQ
0
G3
VCC
GND GND GND
VCC
DQ
1
2
3
4
5
DQ0-23
DQ14 GND VCC GND
DQ15 VCC GND GND GND
DQ16 GND VCC GND
VCC
GND DQ
DQ
GND DQ
VCC
VCC
GND
NC
Power (+5V±10%)
Ground
G
H
I
VCC
DQ17
NC
VCC
GND GND GND
GND VCC GND
GND GND GND
VCC
GND
VCC
DQ
NC
DQ
No Connection
VCC
J
DQ18
VCC
6
K
L
DQ19 GND VCC GND
DQ20 VCC GND GND GND
DQ21 GND VCC GND
VCC
GND DQ
DQ
GND DQ
7
8
9
A0-A16
G#
VCC
M
N
O
P
Q
VCC
128K x 24
Memory
Array
W#
DQ22
DQ23
NC
VCC
GND GND GND
VCC
DQ10
DQ11
NC
E#
DQ0-DQ7
NC
NC
NC
W
NC
NC
DQ8-DQ15
DQ16-DQ23
A
9
A
A
10
A
11
A
A
12
NC
A
13
14
G
A
15
16
NC
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
January 2002
Rev. 1
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com