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White Electronic Designs

WED3DL3216V Datasheet Preview

WED3DL3216V Datasheet

16Mx32 SDRAM

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White Electronic Designs
WED3DL3216V
16Mx32 SDRAM
FEATURES
40% Space Savings vs. Monolithic Solution
Reduced System Inductance and Capacitance
3.3V Operating Supply Voltage
Fully Synchronous to Positive Clock Edge
Clock Frequencies of 100MHz - 133MHz
Burst Operation
• Sequential or Interleave
• Burst Length = Programmable 1, 2, 4, 8
or Full Page
• Burst Read and Write
• Multiple Burst Read and Single Write
Data Mask Control Per Byte
Auto and Self Refresh
Automatic and Controlled Precharge Commands
Suspend Mode and Power Down Mode
119 Pin BGA, 17mm x 23mm
DESCRIPTION
The WED3DL3216V is an 16Mx32 Synchronous DRAM
configured as 4x4Mx32. The SDRAM BGA is constructed
with two 16Mx16 SDRAM die mounted on a multi-layer
laminate substrate and packaged in a 119 lead, 17mm
by 23mm, BGA.
The WED3DL3216V is available in clock speeds
of 133MHz, 125MHz, and 100MHz. The range of
operating frequencies, programmable burst lengths and
programmable latencies allow the same device to be
useful for a variety of high bandwidth, high performance
memory system applications.
The package and design provides performance
enhancements via a 50% reduction in capacitance vs.
two monolithic devices. The design includes internal
ground and power planes which reduces inductance
on the ground and power pins allowing for improved
decoupling and a reduction in system noise.
PIN CONFIGURATION
(Top view)
123 4 5 67
A VCCQ NC
B NC NC
BA0 NC A10
A12 CAS# A11
A7 VCCQ A
NC NC B
C NC NC BA1 VCC A9 A8 NC C
D DQC NC VSS NC VSS NC DQB D
E DQC DQC VSS CE# VSS DQB DQB E
F VCCQ DQC VSS RAS# VSS DQB VCCQ F
G DQC DQC DQMC NC DQMB DQB DQB G
H DQC DQC VSS CKE VSS DQB DQB H
J VCCQ VCC NC VCC NC VCC VCCQ J
K DQD DQD VSS CK VSS DQA DQA K
L DQD DQD DQMD NC DQMA DQA DQA L
M VCCQ DQD VSS WE# VSS DQA VCCQ M
N DQD DQD VSS A1 VSS DQA DQA N
P DQD NC VSS A0 VSS NC DQA P
R NC A6 NC VCC NC A2 NC R
T NC NC A5 A4 A3 NC NC T
U VCCQ NC NC NC NC NC VCCQ U
123 4 5 67
PIN DESCRIPTION
A0 – A12 Address Bus
BA0-1 Bank Select Addresses
DQ Data Bus
CK Clock
CKE Clock Enable
DQM Data Input/Output Mask
RAS# Row Address Strobe
CAS# Column Address Strobe
CE# Chip Enable
VCC Power Supply pins, 3.3V
VCCQ Data Bus Power Supply pins,3.3V
VSS Ground pins
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
January, 2004
Rev. 0
1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com




White Electronic Designs

WED3DL3216V Datasheet Preview

WED3DL3216V Datasheet

16Mx32 SDRAM

No Preview Available !

www.datasheet4u.com
White Electronic Designs
WED3DL3216V
ADDR0-12
BA0
BA1
DQMA
DQMB
CE#
RAS#
CAS#
WE#
CK
CKE
DQMC
DQMD
16MX32 SDRAM BLOCK DIAGRAM
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
BA0
DQ0-7 DQA
BA1 DQ8-15 DQB
LDQM#
UDQM#
CS#
RAS#
CAS#
WE#
CK
CKE
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9 DQ0-7 DQC
A10
A11
DQ8-15 DQD
A12
BA0
BA1
LDQM#
UDQM#
CS#
RAS#
CAS#
WE#
CK
CKE
DQ0-31
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
January, 2004
Rev. 0
2 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com


Part Number WED3DL3216V
Description 16Mx32 SDRAM
Maker White Electronic Designs
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