WED9LC6416V
Advanced*
128Kx32 SSRAM/4Mx32 SDRAM
External Memory Solution for Texas Instruments TMS320C6000 DSP
FEATURES
DESCRIPTION
■ Clock speeds:
• SSRAM: 200, 166,150, and 133 MHz
The WED9LC6416VxxBC is a 3.3V, 128K x 32 Synchronous
Pipeline SRAM and a 4Mx32 Synchronous DRAM array con-
structed with one 128K x 32 SBSRAM and two 4Mx16 SDRAM die
mounted on a multilayer laminate substrate. The device is
packaged in a 153 lead, 14mm by 22mm, BGA.
• SDRAMs: 125 and 100 MHz
■ DSP Memory Solution
• Texas Instruments TMS320C6201
• Texas Instruments TMS320C6701
■ Packaging:
The WED9LC6416VxxBC 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, and 133 MHz, allowing the user to develop a fast
external memory for the SSRAM interface port .
• 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 WED9LC6416V is available in both commercial and industrial
temperature ranges.
■ 65% space savings vs. monolithic solution
■ Reduced system inductance and capacitance
* This data sheet describes a product that may or may not be under development and
is subject to change or cancellation without notice.
FIG. 1 PIN CONFIGURATION
TOP VIEW
PIN DESCRIPTION
1
2
3
4
5
6
7
8
9
A0-16
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
VCC
VCC
VCC
VCC
VSS
VSS
VSS
VSS
VSS
NC
VSS
VCC
VCC
VCC
VCC
VCC
VCC
A2
DQ24
DQ25
VCCQ
DQ26
DQ27
VCCQ
A4
DQ28
DQ29
VCCQ
DQ30
DQ31
VCCQ
A5
A
B
C
D
E
F
DQ0-31
SSCLK
SDCE
SSRAM Clock
SDWE SDA10
SSADC SSRAM Address Status Control
VSS
VSS
VSS
VSS
SSWE
SSOE
SSRAM Write Enable
SSRAM Output Enable
SDRAM Clock
SDCLK VSS
VSS
VSS
VSS
NC
NC
NC
NC
NC
VSS
SDCLK
SDRAS
G
H
J
NC SDRAS SDCAS
G
H
J
SDRAM Row Address Strobe
NC
NC
A8
A9
VSS
VSS
VSS
VSS
VSS
A1
A3
A10
SDCAS SDRAM Column Address Strobe
SDWE SDRAM Write Enable
SDA10 SDRAM Address 10/auto precharge
A6
A7
A0
A11
A12
K NC / A17 NC / A18 NC / A19 VSS
NC
NC
VCC
VCC
VCC
VCC
VCC
VCC
7
A13
A14
K
L
M
N
P
L
NC
VCCQ
DQ12
DQ13
VCCQ
DQ14
DQ15
1
NC
VCCQ
DQ11
DQ10
VCCQ
DQ9
DQ8
2
NC
VCC
VCC
VCC
VCC
VCC
VCC
3
BWE2 BWE3
BWE0 BWE1
A15
A16
BWE0-3
SSRAM Byte Write Enables
SDRAM SDQM 0 - 3
M
N
P
VCCQ
DQ4
DQ5
VCCQ
DQ6
DQ7
8
VCCQ
DQ0
DQ1
VCCQ
DQ2
DQ3
9
VSS
VSS
VSS
VSS
SSCE
SDCE
VCC
Chip Enable SSRAM Device
Chip Enable SDRAM Device
Power Supply pins, 3.3V
SSCLK VSS
R
T
VSS
VSS
NC
NC
6
R
T
U
SSADC SSWE
SSOE SSCE
VCCQ
Data Bus Power Supply pins,
3.3V (2.5V future)
U
4
5
VSS
NC
Ground
No Connect
1
White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com
January 20001