EDI8L32512V
White Electronic Designs
512Kx32 SRAM Module.3.3V
FEATURES
DESCRIPTION
DSP Memory Solution
The EDI8L32512V is a high speed, 3.3V, 16 megabit SRAM.
The device is available with access times of 12, 15, 17 and
20ns allowing the creation of a no wait state DSP and RISC
microprocessor memory solutions.
ADSP-21060L (SHARC)
ADSP-21062L (SHARC)
Texas Instruments TMS320LC31
The device can be configured as a 512K x 32 and used to
create a single chip external data memory solution for TI's
TMS320LC31 (figure 5), or Analog's SHARCTM DSP (figure
6).
RISC Memory Solution
MPC860 (Power Quic)
Random Access Memory Array
The device provides a 56% space savings when compared
to four 512Kx8, 36 pin SOJs. In addition the EDI8K32512V
has only a 10pF load on the data lines vs. 32 pF for four
plastic SOJs.
Fast Access Times: 12, 15, 17, and 20ns
Individual Byte Enables
User configuration organization with Minimal
Additional Logic
The device provides a memory upgrade of the EDI8F32256V
(256K x 32) or the EDI8L32128V (128K x 32) (figure 8).
Alternatively, the device's chip enables can configure it as
a 1M x 16. A 1M x 48 program memory array for Analog's
CHARC DSP is created using three devices (figure 7). If
this memory is too deep, two 512K x 24s (EDI8L24512V)
can be used to create a 512K x 48 array or two 128K x
24s (EDI8L24128V) can be used to create a 128K x 48
array.
Master Output Enable and Write Control
TTL Compatible Inputs and Outputs
Fully Static, No Clocks
Surface Mount Package
68 Lead PLCC, No. 99 JEDEC MO-47AE
Small Footprint, 0.990 Sq. In.
Multiple Ground Pins for Maximum Noise
Immunity
Note: Soldier Reflow Temperature should not exceed 260°C for 10 seconds.
Single +3.3V (±5%) Supply Operation
FIG. 1
PIN DESCRIPTION
A0-A18
Address Inputs
PIN CONFIGURATIONS
E0#-E3#
Chip Enables
(One per Byte)
W#
G#
Master Write Enable
Master Output Enable
60 DQ14
59 DQ13
58 DQ12
DQ17 10
DQ18 11
DQ19 12
DQ0-DQ31
Common Data
Input/Output
57
VSS
V
SS
13
VCC
VSS
NC
Power (+3.3V±5%)
Ground
56 DQ11
55 DQ10
54 DQ9
53 DQ8
52 VCC
51 DQ7
50 DQ6
49 DQ5
48 DQ4
DQ20 14
DQ21 15
DQ22 16
DQ23 17
No Connectiona
V
CC
18
DQ24 19
DQ25 20
DQ26 21
DQ27 22
BLOCK DIAGRAM
A0-18
G#
19
47
VSS
V
SS
23
46 DQ3
45 DQ2
44 DQ1
DQ28 24
DQ29 25
DQ30 26
W#
DQ0-DQ7
512K x 32
Memory
Array
E0#
E1#
E2#
E3#
DQ8-DQ15
DQ16-DQ23
DQ24-DQ31
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
October. 2000
Rev. 3
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com