WED9LC6816V
White Electronic Designs
256Kx32 SSRAM/4Mx32 SDRAM
EXTERNAL MEMORY SOLUTION FOR TEXAS INSTRUMENTS
TMS320C6000 DSP
DESCRIPTION
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.
FEATURES
Clock speeds:
SSRAM: 200, 166,150, and 133 MHz
SDRAMs: 125 and 100 MHz
DSP Memory Solution
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 .
Texas Instruments TMS320C6201
Texas Instruments TMS320C6701
Packaging:
153 pin BGA, JEDEC MO 163
3.3V Operating supply voltage
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.
Direct control interface to both the SSRAM and
SDRAM ports on the “C6x”
Common address and databus
The WED9LC6816V is available in both commercial and
industrial temperature ranges.
65% space savings vs. monolithic solution
Reduced system inductance and capacitance
This product is subject to change without notice.
FIG. 1 PIN CONFIGURATION
TOP VIEW
PIN DESCRIPTION
1
2
3
4
5
6
7
8
9
A0-17
Address Bus
Data Bus
A
B
C
D
E
F
DQ19
DQ18
VCCQ
DQ17
DQ16
VCCQ
NC
DQ23
DQ22
VCCQ
DQ21
DQ20
VCCQ
NC
VCC
VCC
VSS
VSS
VSS
VSS VCC DQ24 DQ28
DQ0-31
SDCE# VSS VCC DQ25 DQ29
SSCK#
SSADC#
SSWE#
SSOE#
SDCK
SSRAM Clock
VCC SDWE# SDA10 NC VCC VCCQ VCCQ
SSRAM Address Status Control
SSRAM Write Enable
VCC
VCC
VCC
VSS
VSS
VSS
VSS
SDCK
VSS
VSS VCC DQ26 DQ30
VSS VCC DQ27 DQ31
SSRAM Output Enable
VSS
VCC
A2
VCCQ VCCQ
SDRAM Clock
G
H
J
NC SDRAS# SDCAS# VSS
A4
A3
A5
SDRAS#
SDCAS#
SDWE#
SDA10
SDRAM Row Address Strobe
SDRAM Column Address Strobe
SDRAM Write Enable
NC
NC
A8
A9
VSS
VSS
VSS
VSS
VSS
VSS
NC
NC
A1
A10
A12
A14
A16
A6
A7
A0
A11
A13
A15
K
L
A17
NC/A18 NC/A19
NC NC
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
NC
NC
NC BWE2# BWE3# NC NC
BWE0-3
SSCE
SDCE
VCC
#
M
N
P
R
T
VCCQ
DQ12
DQ13
VCCQ
DQ14
DQ15
VCCQ
DQ11
DQ10
VCCQ
DQ9
DQ8
VCC BWE0# BWE1# NC VCC VCCQ VCCQ
VCC
VCC
VCC
VSS
VSS
VSS
VSS
SSCK
VSS
VSS VCC DQ4 DQ0
VSS VCC DQ5 DQ1
VSS
VCC
VCCQ VCCQ
VCCQ
VSS
VCC SSADC# SSWE# NC VCC DQ6 DQ2
SSOE# SSCE# NC DQ7 DQ3
U
VCC
VCC
NC
No Contact
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