White Electronic Designs
2Mx16x 4 Banks Synchronous DRAM
FEATURES
Single 3.3V power supply
Fully Synchronous to positive Clock Edge
SDRAM CAS Latentency = 3 (100MHz), 2 (83MHz)
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 Refresh (CBR) and Self Refresh
• 4096 refresh cycles across 64ms
Automatic and Controlled Precharge Commands
Suspend Mode and Power Down Mode
WED416S8030A-SI
DESCRIPTION
The WED416S8030AxxSI is 134,217,728 bits of
synchronous high data rate DRAM organized as 4 x
2,097, 152 words x 16 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.
Available in a 54 pin TSOP type II package the
WED416S4030AxxSI is tested over the industrial temp
range (-40°C to +85°C) providing a solution for rugged
main memory applications.
PIN CONFIGURATIONS
PIN DESCRIPTION
CLK
CKE
RAS#
CAS#
WE#
CE#
A0-A11
BA0, BA1
DQ0-DQ15
L(U)DQM
V
CC
V
CCQ
V
SS
V
SSQ
NC
Clock Input
Clock Enable
Row Address Strobe
Column Address Strobe
Write Enable
Chip Select
Address Inputs
Bank Select Address
Data Input/Output
Data Input/Output Mask
Power (+3.3V ±10%)
Data Output Power
Ground
Data Output Ground
No Connection
V
CC
DQ
0
V
CCQ
DQ
1
DQ
2
V
SSQ
DQ
3
DQ
4
V
CCQ
DQ
5
DQ
6
V
SSQ
DQ
7
V
CC
LDQM
WE#
CAS#
RAS#
CE#
BA
0
BA
1
A
10
/AP
A
0
A
1
A
2
A
3
V
CC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
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
V
SS
DQ
15
V
SSQ
DQ
14
DQ
13
V
CCQ
DQ
12
DQ
11
V
SSQ
DQ
10
DQ
9
V
CCQ
DQ
8
V
SS
NC/RFU
UDQM
CK
CKE
NC
A
11
A
9
A
8
A
7
A
6
A
5
A
4
V
SS
TERMINAL CONNECTIONS
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
October 2004
Rev. 4
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
(TOP VEIW)
WEDC [ WHITE ELECTRONIC DESIGNS CORPORATION ]
