EDD5104ADTA Datasheet, PDF (1/49 Pages) Elpida Memory – 512M bits DDR SDRAM

DATA SHEET
512M bits DDR SDRAM
EDD5104ADTA (128M words × 4 bits)
EDD5108ADTA (64M words × 8 bits)
EDD5116ADTA (32M words × 16 bits)
Description
The EDD5104AD, the EDD5108AD and the
EDD5116AD are 512M bits Double Data Rate (DDR)
SDRAM. Read and write operations are performed at
the cross points of the CK and the /CK. This high-
speed data transfer is realized by the 2 bits prefetch-
pipelined architecture. Data strobe (DQS) both for
read and write are available for high speed and reliable
data bus design. By setting extended mode register,
the on-chip Delay Locked Loop (DLL) can be set
enable or disable. It is packaged in standard 66-pin
plastic TSOP (II).
Features
• Power supply: VDD, VDDQ = 2.5V ± 0.2V
• Data Rate: 333Mbps/266Mbps (max.)
• Double Data Rate architecture; two data transfers per
clock cycle
• Bi-directional, data strobe (DQS) is transmitted
/received with data, to be used in capturing data at
the receiver
• Data inputs, outputs, and DM are synchronized with
DQS
• 4 internal banks for concurrent operation
• DQS is edge aligned with data for READs; center
aligned with data for WRITEs
• Differential clock inputs (CK and /CK)
• DLL aligns DQ and DQS transitions with CK
transitions
• Commands entered on each positive CK edge; data
and data mask referenced to both edges of DQS
• Data mask (DM) for write data
• Auto precharge option for each burst access
• SSTL_2 compatible I/O
• Programmable burst length (BL): 2, 4, 8
• Programmable /CAS latency (CL): 2, 2.5
• Programmable output driver strength: normal/weak
• Refresh cycles: 8192 refresh cycles/64ms
 7.8µs maximum average periodic refresh interval
• 2 variations of refresh
 Auto refresh
 Self refresh
Pin Configurations
/xxx indicates active low signal.
VDD VDD VDD
NC DQ0 DQ0
VDDQ VDDQ VDDQ
NC
NC DQ1
DQ0 DQ1 DQ2
VSSQ VSSQ VSSQ
NC
NC DQ3
NC DQ2 DQ4
VDDQ VDDQ VDDQ
NC
NC DQ5
DQ1 DQ3 DQ6
VSSQ VSSQ VSSQ
NC
NC DQ7
NC
NC
NC
VDDQ VDDQ VDDQ
NC
NC LDQS
NC
NC
NC
VDD VDD VDD
NC
NC
NC
NC
NC LDM
/WE /WE /WE
/CAS /CAS /CAS
/RAS /RAS /RAS
/CS /CS /CS
NC
NC
NC
BA0 BA0 BA0
BA1 BA1 BA1
A10(AP) A10(AP) A10(AP)
A0
A0
A0
A1
A1
A1
A2
A2
A2
A3
A3
A3
VDD VDD VDD
66-pin Plastic TSOP(II)
1
66
2
65
3
64
4
63
5
62
6
61
7
60
8
59
9
58
10
57
11
56
12
55
13
54
14
53
15
52
16
51
17
50
18
49
19
48
20
47
21
46
22
45
23
44
24
43
25
42
26
41
27
40
28
39
29
38
30
37
31
36
32
35
33
34
VSS VSS VSS
DQ15 DQ7 NC
VSSQ VSSQ VSSQ
DQ14 NC NC
DQ13 DQ6 DQ3
VDDQ VDDQ VDDQ
DQ12 NC NC
DQ11 DQ5 NC
VSSQ VSSQ VSSQ
DQ10 NC NC
DQ9 DQ4 DQ2
VDDQ VDDQ VDDQ
DQ8 NC NC
NC NC NC
VSSQ VSSQ VSSQ
UDQS DQS DQS
NC NC NC
VREF VREF VREF
VSS VSS VSS
UDM DM DM
/CK /CK /CK
CK CK CK
CKE CKE CKE
NC NC NC
A12 A12 A12
A11 A11 A11
A9 A9 A9
A8 A8 A8
A7 A7 A7
A6 A6 A6
A5 A5 A5
A4 A4 A4
VSS VSS VSS
X 16
X8
X4
A0 to A12
BA0, BA1
DQ0 to DQ15
DQS, LDQS, UDQS
/CS
/RAS
/CAS
/WE
DM, LDM, UDM
CK
/CK
CKE
VREF
VDD
VSS
VDDQ
VSSQ
NC
(Top view)
Address input
Bank select address
Data-input/output
Input and output data strobe
Chip select
Row address strobe command
Column address strobe command
Write enable
Input mask
Clock input
Differential clock input
Clock enable
Input reference voltage
Power for internal circuit
Ground for internal circuit
Power for DQ circuit
Ground for DQ circuit
No connection
Document No. E0384E30 (Ver. 3.0)
Date Published January 2004 (K) Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2003-2004