White Electronic Designs
256Kx32 SSRAM/4Mx32 SDRAM
FEATURES
WED9LC6816V
EXTERNAL MEMORY SOLUTION FOR TEXAS INSTRUMENTS
TMS320C6000 DSP
DESCRIPTION
Clock speeds:
The WED9LC6816V is a 3.3V, 256K x 32 Synchronous
Pipeline SRAM and a 4Mx32 Synchronous DRAM array
constructed with one 256K x 32 SBSRAM and two 4Mx16
SDRAM die mounted on a multilayer laminate substrate.
The device is packaged in a 153 lead, 14mm x 22mm,
BGA.
The WED9LC6816V provides a total memory solution
for the Texas Instruments TMS320C6201 and the
TMS320C6701 DSPs The Synchronous Pipeline SRAM
is available with clock speeds of 200, 166,150,v and 133
MHz, allowing the user to develop a fast external memory
for the SSRAM interface port .
The SDRAM is available in clock speeds of 125 and 100
MHz, allowing the user to develop a fast external memory
for the SDRAM interface port.
The WED9LC6816V is available in both commercial and
industrial temperature ranges.
This product is subject to change without notice.
SSRAM: 200, 166,150, and 133 MHz
SDRAMs: 125 and 100 MHz
DSP Memory Solution
Texas Instruments TMS320C6201
Texas Instruments TMS320C6701
153 pin BGA, JEDEC MO 163
Packaging:
3.3V Operating supply voltage
Direct control interface to both the SSRAM and
SDRAM ports on the “C6x”
Common address and databus
65% space savings vs. monolithic solution
Reduced system inductance and capacitance
FIG. 1 PIN CONFIGURATION
TOP VIEW
4
V
SS
V
SS
SDWE#
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
BWE
2
#
BWE
0
#
V
SS
V
SS
V
SS
SSOE#
PIN DESCRIPTION
6
V
SS
V
SS
NC
V
SS
V
SS
V
SS
NC
NC
NC
NC
NC
V
SS
V
SS
V
SS
NC
NC
1
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
2
DQ
23
DQ
22
V
CCQ
DQ
21
DQ
20
V
CCQ
NC
NC
A
7
NC
V
CCQ
DQ
11
DQ
10
V
CCQ
DQ
9
DQ
8
3
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
NC
A
8
A
9
NC
V
CC
V
CC
V
CC
V
CC
V
CC
5
V
SS
SDCE#
SDA
10
V
SS
SDCK
V
SS
V
SS
V
SS
V
SS
BWE
3
#
BWE
1
#
V
SS
SSCK
V
SS
SSCE#
7
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
A
2
A
1
A
0
NC
NC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
8
DQ
24
DQ
25
V
CCQ
DQ
26
DQ
27
V
CCQ
A
4
A
3
A
11
A
13
A
15
V
CCQ
DQ
4
DQ
5
V
CCQ
DQ
6
DQ
7
9
DQ
28
DQ
29
V
CCQ
DQ
30
DQ
31
V
CCQ
A
5
A
10
A
12
A
14
A
16
V
CCQ
DQ
0
DQ
1
V
CCQ
DQ
2
DQ
3
A
0-17
DQ
0-31
SSCK#
SSADC#
SSWE#
SSOE#
SDCK
SDRAS#
SDCAS#
SDWE#
SDA
10
BWE
0-3
#
SSCE
SDCE
V
CC
V
CCQ
V
SS
NC
Address Bus
Data Bus
SSRAM Clock
SSRAM Address Status Control
SSRAM Write Enable
SSRAM Output Enable
SDRAM Clock
SDRAM Row Address Strobe
SDRAM Column Address Strobe
SDRAM Write Enable
SDRAM Address 10/auto precharge
SSRAM Byte Write Enables SDRAM SDQM 0-3
Chip Enable SSRAM Device
Chip Enable SDRAM Device
Power Supply pins, 3.3V
Data Bus Power Supply pins, 3.3V (2.5V future)
Ground
No Contact
DQ
19
DQ
18
V
CCQ
DQ
17
DQ
16
V
CCQ
NC
NC
A
6
A
17
NC
V
CCQ
DQ
12
DQ
13
V
CCQ
DQ
14
DQ
15
SDRAS# SDCAS# V
SS
NC/A
18
NC/A
19
V
CC
SSADC# SSWE#
Contact factory for ordering information.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
September, 2003
Rev. 1
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
WEDC [ WHITE ELECTRONIC DESIGNS CORPORATION ]
