WED48S8030E
White Electronic Designs
2M x 8 Bits x 4 Banks Synchronous DRAM
FEATURES
DESCRIPTION
Single 3.3V power supply
The WED48S8030E is 67,108,864 bits of synchronous high
data rate DRAM organized as 4 x 2,097,152 words x 8 bits.
Synchronous design allows precise cycle control with the
use of system clock, I/O transactions are possible on every
clock cycle. 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.
Fully Synchronous to positive Clock Edge
Clock Frequency = 125, 100MHz
SDRAM CAS# Latency = 2
Burst Operation
•Sequential or Interleave
•Burst length = programmable 1,2,4,8 or full page
•Burst Read and Write
Available in a 54 pin TSOP type II package the
WED48S8030E is tested over the industrial temp range (-
40C to +85C) providing a solution for rugged main memory
applications.
•Multiple Burst Read and Single Write
DATA Mask Control
Auto Refresh (CBR) and Self Refresh
•4096 refresh cycles across 64ms
Automatic and Controlled Precharge Commands
Suspend Mode and Power Down Mode
Industrial Temperature Range
FIG. 1
Pin Description
Pin Configuration
A
0-11
Address Inputs
Bank Select Addresses
Chip Select
VCC
1
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
VSS
BA0
, BA
1
DQ0
2
DQ7
VCCQ
3
VSSQ
CE#
WE#
CK
NC
4
NC
DQ6
DQ1
5
Write Enable
V
SSQ
6
VCCQ
NC
DQ2
7
NC
DQ5
Clock Input
8
VCCQ
9
VSSQ
CKE
DQ0-7
DQM
RAS#
CAS#
Clock Enable
NC
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
NC
DQ4
DQ3
Data Input/Output
Data Input/Output Mask
Row Address Strobe
Column Address Strobe
Power (3.3V)
V
SSQ
VCCQ
NC
NC
VCC
VSS
NC
NC/RFU
DQM
CK
WE#
CAS#
RAS#
CE#
BA0
BA1
10/AP
A0
CKE
NC
A11
A9
V
CC
V
CCQ
Data Output Power
Ground
A
A8
A7
V
SS
A1
A6
A2
A5
V
SSQ
Data Output Ground
No Connection
A3
A4
VCC
VSS
NC
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
February, 2002
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
Rev. 2