EDI8L24129V
White Electronic Designs
128Kx24 SRAM 3.3 Volt
FEATURES
DESCRIPTION
ꢀ
128Kx24 bit CMOS Static
The EDI8L24129VxxBC is a 3.3V, three megabit SRAM
constructed with three 128Kx8 die mounted on a multi-
layer laminate substrate. With 10 to 15ns access times,
x24 width and a 3.3V operating voltage, the EDI8L24129V
is ideal for creating a single chip memory solution for the
Motorola DSP5630x (Figure 3) or a two chip solution for
the Analog Devices SHARCTM DSP (Figure 4).
ꢀ
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
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 BGA package is 58ꢀ 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 BGAprovides a 44ꢀ space
savings over using 128Kx8, 300mil wide SOJs and the BGA
package has a maximum height of 100 mils compared to
148 mils for the SOJ packages. The BGA package also
allows the use of the same manufacturing and inspection
techniques as the Motorola DSP, which is also in a BGA
package.
Single +3.3V ( 5ꢀ) Supply Operation
DSP Memory Solution
Motorola DSP5630xTM
Analog Devices SHARCTM
PIN CONFIGURATION
PIN NAMES
AØ-A16
E#
Address Inputs
1
NC
2
AO
3
A1
4
A2
5
A3
6
A4
7
NC
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
Chip Enable
NC
A5
NC
A6
NC
E#
A7
NC
A8
NC
NC
I/00
I/01
I/02
I/03
I/04
I/05
NC
W#
Master Write Enable
Master Output Enable
I/012
I/013
I/014
I/015
I/016
I/017
NC
NC
G#
VCC
GND
VCC
GND
VCC
GND
VCC
GND
VCC
GND
VCC
NC
GND
VCC
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
NC
GND
VCC
GND
VCC
VCC
GND
VCC
GND
VCC
GND
VCC
GND
VCC
GND
VCC
NC
DQØ-DQ23 Common Data Input/Output
VCC
GND
NC
Power (3.3V 5ꢀ%
Ground
GND
VCC
No Connection
GND
VCC
GND
VCC
I/018
I/019
I/020
I/021
I/022
I/023
NC
GND
VCC
GND
VCC
I/06
I/07
I/08
I/09
I/010
I/011
NC
GND
VCC
GND
VCC
GND
NC
GND
NC
A9
A10
A14
W#
A11
A12
A16
NC
A13
G#
A15
NC
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
March 2005
Rev. 5
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com