Elpida EBJ81UG8BAS0-DJ-F 8gb ddr3 sdram so-dimm Datasheet

DATA SHEET
8GB DDR3 SDRAM SO-DIMM
EBJ81UG8BAS0 (1024M words × 64 bits, 2 Ranks)
Specifications
Features
• Density: 8GB
• Organization
 1024M words × 64 bits, 2 ranks
• Mounting 16 pieces of 4G bits DDR3 SDRAM sealed
in FBGA
• Package: 204-pin socket type small outline dual in
line memory module (SO-DIMM)
 PCB height: 30.0mm
 Lead pitch: 0.6mm
 Lead-free (RoHS compliant) and Halogen-free
• Power supply: VDD = 1.5V ± 0.075V
• Data rate: 1600Mbps/1333Mbps (max.)
Backward compatible to1066Mbps/800Mbps/667Mbps
• Eight internal banks for concurrent operation
(components)
• Interface: SSTL_15
• Burst lengths (BL): 8 and 4 with Burst Chop (BC)
• /CAS Latency (CL): 5, 6, 7, 8, 9, 10, 11
• /CAS write latency (CWL): 5, 6, 7, 8
• Precharge: auto precharge option for each burst
access
• Refresh: auto-refresh, self-refresh
• Refresh cycles
 Average refresh period
7.8µs at 0°C ≤ TC ≤ +85°C
3.9µs at +85°C < TC ≤ +95°C
• Operating case temperature range
 TC = 0°C to +95°C
• Double-data-rate architecture: two data transfers per
clock cycle
• The high-speed data transfer is realized by the 8 bits
prefetch pipelined architecture
• Bi-directional differential data strobe (DQS and /DQS)
is transmitted/received with data for capturing data at
the receiver
• DQS is edge-aligned with data for READs; centeraligned 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
• Posted /CAS by programmable additive latency for
better command and data bus efficiency
• On-Die-Termination (ODT) for better signal quality
 Synchronous ODT
 Dynamic ODT
 Asynchronous ODT
• Multi Purpose Register (MPR) for pre-defined pattern
read out
• ZQ calibration for DQ drive and ODT
• Programmable Partial Array Self-Refresh (PASR)
• /RESET pin for Power-up sequence and reset
function
• SRT range:
 Normal/extended
• Programmable Output driver impedance control
Document No. E1717E50 (Ver. 5.0)
Date Published May 2011 (K) Japan
Printed in Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2010-2011
EBJ81UG8BAS0
Ordering Information
Part number
Data rate
Mbps (max.)
EBJ81UG8BAS0-GN-F
1600
EBJ81UG8BAS0-DJ-F
1333
Component
JEDEC speed bin
(CL-tRCD-tRP)
Package
Contact
pad
DDR3-1600K (11-11-11) 204-pin SO-DIMM Gold
(lead-free and
DDR3-1333H (9-9-9)
halogen-free)
Mounted devices
EDJ4208BASE-GN-F
EDJ4208BASE-GN-F
EDJ4208BASE-DJ-F
Detailed Information
For detailed electrical specifications and further information, please refer to the component DDR3 SDRAM datasheet
EDJ4204BASE, EDJ4208BASE (E1705E).
Data Sheet E1717E50 (Ver. 5.0)
2
EBJ81UG8BAS0
Pin Configurations
Front side
Back side
Front side
Back side
Front side
Back side
Pin
No.
Pin name
Pin
No.
Pin name
Pin
No.
Pin
No.
Pin
No.
Pin name
Pin
No.
Pin name
1
VREFDQ
2
VSS
143
DQ35
144
VSS
3
VSS
4
DQ4
145
VSS
146
DQ44
5
DQ0
6
DQ5
75
VDD
76
VDD
147
DQ40
148
DQ45
7
DQ1
8
VSS
77
NC
78
A15
149
DQ41
150
VSS
9
VSS
10
/DQS0
79
BA2
80
A14
151
VSS
152
/DQS5
11
DM0
12
DQS0
81
VDD
82
VDD
153
DM5
154
DQS5
13
VSS
14
VSS
83
A12(/BC)
84
A11
155
VSS
156
VSS
15
DQ2
16
DQ6
85
A9
86
A7
157
DQ42
158
DQ46
17
DQ3
18
DQ7
87
VDD
88
VDD
159
DQ43
160
DQ47
19
VSS
20
VSS
89
A8
90
A6
161
VSS
162
VSS
21
DQ8
22
DQ12
91
A5
92
A4
163
DQ48
164
DQ52
23
DQ9
24
DQ13
93
VDD
94
VDD
165
DQ49
166
DQ53
25
VSS
26
VSS
95
A3
96
A2
167
VSS
168
VSS
27
/DQS1
28
DM1
97
A1
98
A0
169
/DQS6
170
DM6
29
DQS1
30
/RESET
99
VDD
100
VDD
171
DQS6
172
VSS
31
VSS
32
VSS
101
CK0
102
CK1
173
VSS
174
DQ54
33
DQ10
34
DQ14
103
/CK0
104
/CK1
175
DQ50
176
DQ55
35
DQ11
36
DQ15
105
VDD
106
VDD
177
DQ51
178
VSS
37
VSS
38
VSS
107
A10(AP)
108
BA1
179
VSS
180
DQ60
39
DQ16
40
DQ20
109
BA0
110
/RAS
181
DQ56
182
DQ61
41
DQ17
42
DQ21
111
VDD
112
VDD
183
DQ57
184
VSS
43
VSS
44
VSS
113
/WE
114
/CS0
185
VSS
186
/DQS7
45
/DQS2
46
DM2
115
/CAS
116
ODT0
187
DM7
188
DQS7
Pin name
Pin name
KEY
73
CKE0
74
CKE1
47
DQS2
48
VSS
117
VDD
118
VDD
189
VSS
190
VSS
49
VSS
50
DQ22
119
A13
120
ODT1
191
DQ58
192
DQ62
51
DQ18
52
DQ23
121
/CS1
122
NC
193
DQ59
194
DQ63
53
DQ19
54
VSS
123
VDD
124
VDD
195
VSS
196
VSS
55
VSS
56
DQ28
125
NC
126
VREFCA
197
SA0
198
NC
57
DQ24
58
DQ29
127
VSS
128
VSS
199
VDDSPD
200
SDA
59
DQ25
60
VSS
129
DQ32
130
DQ36
201
SA1
202
SCL
61
VSS
62
/DQS3
131
DQ33
132
DQ37
203
VTT
204
VTT
63
DM3
64
DQS3
133
VSS
134
VSS
65
VSS
66
VSS
135
/DQS4
136
DM4
67
DQ26
68
DQ30
137
DQS4
138
VSS
69
DQ27
70
DQ31
139
VSS
140
DQ38
71
VSS
72
VSS
141
DQ34
142
DQ39
Data Sheet E1717E50 (Ver. 5.0)
3
EBJ81UG8BAS0
Pin Description
Pin name
Function
A0 to A15
Address input
Row address
Column address
A10 (AP)
Auto precharge
A0 to A15
A0 to A9
A12 (/BC)
Burst chop
BA0, BA1, BA2
Bank select address
/RAS
Row address strobe
/CAS
Column address strobe
/WE
Write enable
/CS0, /CS1
Chip select
CKE0, CKE1
Clock enable
CK0, CK1
Clock input
/CK0, /CK1
Differential clock input
ODT0, ODT1
ODT control
DQ0 to DQ63
Data input/output
DQS0 to DQS7, /DQS0 to /DQS7
Input and output data strobe
DM0 to DM7
Input mask
SCL
Clock input for serial PD
SDA
Data input/output for serial PD
SA0, SA1
VDD*
1
Address input for serial PD
Power for internal circuit
VDDSPD
Power for serial PD
VREFCA
Reference voltage for CA
VREFDQ
Reference voltage for DQ
VSS
Ground
VTT
I/O termination supply for SDRAM
/RESET
Set DRAM to a known state
NC
No connection
Note: 1. The VDD and VDDQ pins are tied common to a single power-plane on these designs.
Front side
1 pin
71 pin 73 pin
203 pin
2 pin
72 pin 74 pin
204 pin
Back side
Data Sheet E1717E50 (Ver. 5.0)
4
EBJ81UG8BAS0
Serial PD Matrix
-DJ
-GN
Byte No.
Function described
Hex
Comments
Hex
Comments
0
Number of serial PD bytes written/
SPD device size/CRC coverage
92h
176/256/0-116
92h
176/256/0-116
1
SPD revision
10h
Rev.1.0
10h
Rev.1.0
2
Key byte/DRAM device type
0Bh
DDR3 SDRAM
0Bh
DDR3 SDRAM
3
Key byte/module type
03h
SO-DIMM
03h
SO-DIMM
4
SDRAM density and banks
04h
4G bits, 8 banks
04h
4G bits, 8 banks
5
SDRAM addressing
21h
16 rows, 10 columns
21h
16 rows, 10 columns
6
Module nominal voltage, VDD
00h
1.5V
00h
1.5V
7
Module organization
09h
2 ranks/×8 bits
09h
2 ranks/×8 bits
8
Module memory bus width
03h
64 bits/non-ECC
03h
64 bits/non-ECC
9
Fine timebase (FTB) dividend/divisor
52h
5/2
52h
5/2
10
Medium timebase (MTB) dividend
01h
1
01h
1
11
Medium timebase (MTB) divisor
08h
8
08h
8
12
SDRAM minimum cycle time (tCK (min.))
0Ch
1.5ns
0Ah
1.25ns
13
Reserved
00h
—
00h
—
14
SDRAM CAS latencies supported, LSB
7Eh
5, 6, 7, 8, 9, 10
FEh
5, 6, 7, 8, 9, 10, 11
15
SDRAM CAS latencies supported, MSB
00h
—
00h
—
16
SDRAM minimum CAS latencies time (tAA (min.))
69h
13.125ns
69h
13.125ns
17
SDRAM minimum write recovery time (tWR (min.))
78h
15ns
78h
15ns
18
SDRAM minimum /RAS to /CAS delay
(tRCD (min.))
69h
13.125ns
69h
13.125ns
19
SDRAM minimum row active to row active delay
(tRRD (min.))
30h
6ns
30h
6ns
20
SDRAM minimum row precharge time (tRP (min.))
69h
13.125ns
69h
13.125ns
21
SDRAM upper nibbles for tRAS and tRC
11h
—
11h
—
22
SDRAM minimum active to precharge time
(tRAS (min.)), LSB
20h
36ns
18h
35ns
23
SDRAM minimum active to active /auto-refresh time
89h
(tRC (min.)), LSB
49.125ns
81h
48.125ns
24
SDRAM minimum refresh recovery time delay
(tRFC (min.)), LSB
20h
260ns
20h
260ns
25
SDRAM minimum refresh recovery time delay
(tRFC (min.)), MSB
08h
260ns
08h
260ns
26
SDRAM minimum internal write to read
command delay (tWTR (min.))
3Ch
7.5ns
3Ch
7.5ns
27
SDRAM minimum internal read to precharge
command delay (tRTP (min.))
3Ch
7.5ns
3Ch
7.5ns
28
Upper nibble for tFAW
00h
30ns
00h
30ns
29
Minimum four activate window delay time
(tFAW (min.))
F0h
30ns
F0h
30ns
30
SDRAM optional features
83h
DLL-off, RZQ/6, 7
83h
DLL-off, RZQ/6, 7
81h
PASR/2X refresh at
+85ºC to +95ºC
31
SDRAM thermal and refresh options
81h
PASR/2X refresh at
+85ºC to +95ºC
32
Module thermal sensor
00h
Not incorporated
00h
Not incorporated
33
SDRAM device type
00h
Standard
00h
Standard
34 to 59
Reserved
00h
—
00h
—
Data Sheet E1717E50 (Ver. 5.0)
5
EBJ81UG8BAS0
-DJ
-GN
Byte No.
Function described
Hex
Comments
Hex
Comments
60
Module nominal height
0Fh
29 < height ≤ 30mm
0Fh
29 < height ≤ 30mm
61
Module maximum thickness
11h
Dual sides
11h
Dual sides
62
Reference raw card used
65h
Raw Card F3
65h
Raw Card F3
63
Address mapping from edge connector to DRAM
00h
Standard
00h
Standard
64 to 116
Reserved
00h
—
00h
—
117
Module ID: manufacturer’s JEDEC ID code, LSB
02h
Elpida Memory
02h
Elpida Memory
118
Module ID: manufacturer’s JEDEC ID code, MSB
FEh
Elpida Memory
FEh
Elpida Memory
119
Module ID: manufacturing location
××
—
××
—
120
Module ID: manufacturing date
yy
Year code (BCD)
yy
Year code (BCD)
121
Module ID: manufacturing date
ww
Week code (BCD)
ww
Week code (BCD)
122 to 125 Module ID: module serial number
××
—
××
—
126
Cyclical redundancy code (CRC)
9Bh
—
4Eh
—
127
Cyclical redundancy code (CRC)
C8h
—
16h
—
128
Module part number
45h
E
45h
E
129
Module part number
42h
B
42h
B
130
Module part number
4Ah
J
4Ah
J
131
Module part number
38h
8
38h
8
132
Module part number
31h
1
31h
1
133
Module part number
55h
U
55h
U
134
Module part number
47h
G
47h
G
135
Module part number
38h
8
38h
8
136
Module part number
42h
B
42h
B
137
Module part number
41h
A
41h
A
138
Module part number
53h
S
53h
S
139
Module part number
30h
0
30h
0
140
Module part number
2Dh
—
2Dh
—
141
Module part number
44h
D
47h
G
142
Module part number
4Ah
J
4Eh
N
143
Module part number
2Dh
—
2Dh
—
144
Module part number
46h
F
46h
F
145
Module part number
20h
(Space)
20h
(Space)
146
Module revision code
30h
Initial
30h
Initial
147
Module revision code
20h
(Space)
20h
(Space)
148
SDRAM manufacturer’s JEDEC ID code, LSB
02h
Elpida Memory
02h
Elpida Memory
149
SDRAM manufacturer’s JEDEC ID code, MSB
FEh
Elpida Memory
FEh
Elpida Memory
00h
—
00h
—
150 to 175 Manufacturer's specific data
176 to 255 Open for customer use
Data Sheet E1717E50 (Ver. 5.0)
6
EBJ81UG8BAS0
Block Diagram
/CS0
/CS1
RDQS0
/RDQS0
RDQ[7:0]
RDM0
DQS /CS
/DQS
DQ[7:0]
DM
D0
DQS /CS
/DQS
DQ[7:0]
DM
RDQS1
/RDQS1
RDQ[15:8]
RDM1
DQS /CS
/DQS
DQ[7:0]
DM
D4
DQS /CS
/DQS
DQ[7:0]
DM
RDQS2
/RDQS2
RDQ[23:16]
RDM2
DQS /CS
/DQS
DQ[7:0]
DM
D1
DQS /CS
/DQS
DQ[7:0]
DM
RDQS3
/RDQS3
RDQ[31:24]
RDM3
DQS /CS
/DQS
DQ[7:0]
DM
D13
DQS /CS
/DQS
DQ[7:0]
DM
RDQS4
/RDQS4
RDQ[39:32]
RDM4
DQS /CS
/DQS
DQ[7:0]
DM
D6
DQS /CS
/DQS
DQ[7:0]
DM
RDQS5
/RDQS5
RDQ[47:40]
RDM5
DQS /CS
/DQS
DQ[7:0]
DM
D10
DQS /CS
/DQS
DQ[7:0]
DM
D2
RDQS6
/RDQS6
RDQ[55:48]
RDM6
DQS /CS
/DQS
DQ[7:0]
DM
DQS /CS
/DQS
DQ[7:0]
DM
D7
RDQS7
/RDQS7
RDQ[63:56]
RDM7
DQS /CS
/DQS
DQ[7:0]
DM
DQS /CS
/DQS
DQ[7:0]
DM
D3
/CS0
/CS1
CKE0
CKE1
ODT0
ODT1
BA[2:0]
A[15:0]
/RAS
/CAS
/WE
/RESET
D8
D12
D9
Rank0 SDRAMs
Rank1 SDRAMs
Rank0 SDRAMs
Rank1 SDRAMs
Rank0 SDRAMs
Rank1 SDRAMs
All SDRAMs
All SDRAMs
All SDRAMs
All SDRAMs
All SDRAMs
All SDRAMs
3.3pF
CK0
/CK0
D5
Rank0 SDRAMs
3.3pF
CK1
/CK1
Rank1 SDRAMs
D14
15Ω
D15
D11
DQ[63:0]
DQS[7:0]
/DQS[7:0]
DM[7:0]
RDQ[63:0]
RDQS[7:0]
/RDQS[7:0]
RDM[7:0]
39Ω
BA[2:0]
A[15:0]
/RAS
/CAS
/WE
VTT
39Ω
/CS[1:0]
CKE[1:0]
ODT[1:0]
V2
D12
V1 V9
D13
V8
D14
D15
V3
30Ω
CK[1:0]
V7
V4
D8
V5
D9
VTT
0.1µF
VDD
V6
D10
D11
/CK[1:0]
240Ω
V4
D0
V5
D1
V3
D4
D2
V8
D5
VDDSPD
VDD
VTT
VREFCA
VREFDQ
VSS
V7
V1
D6
ZQ (Each SDRAM)
D3
VTT
V2
VSS
V6
D7
Rank0
V9
Rank1
Serial PD
All SDRAMs
All SDRAMs
All SDRAMs
All SDRAMs, Serial PD
Address, command and control line
Serial PD
SCL
SA0
SA1
VSS
Note :
1. DQ wiring may be changed within a byte.
SCL
SDA
A0
A1
A2 WP
VSS
Data Sheet E1717E50 (Ver. 5.0)
7
SDA
EBJ81UG8BAS0
Electrical Specifications
• All voltages are referenced to VSS (GND).
Absolute Maximum Ratings
Parameter
Symbol
Value
Unit
Notes
Power supply voltage
VDD
−0.4 to +1.975
V
1, 3, 4
Input voltage
VIN
−0.4 to +1.975
V
1, 4
Output voltage
VOUT
−0.4 to +1.975
V
1, 4
Reference voltage
VREFCA
−0.4 to 0.6 × VDD
V
3, 4
Reference voltage for DQ
VREFDQ
−0.4 to 0.6 × VDDQ
V
3, 4
1, 2, 4
Storage temperature
Tstg
−55 to +100
°C
Power dissipation
PD
8
W
Short circuit output current
IOUT
50
mA
1, 4
Notes: 1. Stresses greater than those listed under Absolute Maximum Ratings may cause permanent damage to
the device. This is a stress rating only and functional operation of the device at these or any other
conditions above those indicated in the operational sections of this specification is not implied. Exposure
to absolute maximum rating conditions for extended periods may affect reliability.
2. Storage temperature is the case surface temperature on the center/top side of the DRAM.
3. VDD and VDDQ must be within 300mV of each other at all times; and VREF must be not greater than
0.6 × VDDQ, When VDD and VDDQ are less than 500mV; VREF may be equal to or less than 300mV.
4. DDR3 SDRAM component specification.
Caution
Exposing the device to stress above those listed in Absolute Maximum Ratings could cause
permanent damage. The device is not meant to be operated under conditions outside the limits
described in the operational section of this specification Exposure to Absolute Maximum Rating
conditions for extended periods may affect device reliability.
Operating Temperature Condition
Parameter
Symbol
Rating
Unit
Notes
Operating case temperature
TC
0 to +95
°C
1, 2, 3
Notes: 1. Operating temperature is the case surface temperature on the center/top side of the DRAM.
2. The Normal Temperature Range specifies the temperatures where all DRAM specifications will be
supported. During operation, the DRAM case temperature must be maintained between 0°C to +85°C
under all operating conditions.
3. Some applications require operation of the DRAM in the Extended Temperature Range between +85°C
and +95°C case temperature. Full specifications are guaranteed in this range, but the following additional
conditions apply:
a)
Refresh commands must be doubled in frequency, therefore reducing the refresh interval tREFI to
3.9µs. (This double refresh requirement may not apply for some devices.)
b)
If Self-refresh operation is required in the Extended Temperature Range, then it is mandatory to
either use the Manual Self-Refresh mode with Extended Temperature Range capability (MR2 bit
[A6, A7] = [0, 1]) or enable the optional Auto Self-Refresh mode (MR2 bit [A6, A7] = [1, 0]).
Data Sheet E1717E50 (Ver. 5.0)
8
EBJ81UG8BAS0
Recommended DC Operating Conditions (TC = 0°C to +85°C)
Parameter
Symbol
min.
typ.
max.
Unit
Notes
Supply voltage
VDD, VDDQ
1.425
1.5
1.575
V
1, 2, 3
VSS
0
0
0
V
1
VDDSPD
3.0
3.3
3.6
V
VREFCA (DC)
0.49 × VDD
—
0.51 × VDD
V
1, 4, 5
VREFDQ (DC)
0.49 × VDD
—
0.51 × VDD
V
1, 4, 5
Input reference voltage for
address, command inputs
Input reference voltage for
DQ, DM inputs
Notes: 1.
2.
3.
4.
DDR3 SDRAM component specification.
Under all conditions VDDQ must be less than or equal to VDD.
VDDQ tracks with VDD. AC parameters are measured with VDD and VDDQ tied together.
The AC peak noise on VREF may not allow VREF to deviate from VREF(DC) by more than ±1% VDD (for
reference: approx ±15 mV).
5. For reference: approx. VDD/2 ±15 mV.
Data Sheet E1717E50 (Ver. 5.0)
9
EBJ81UG8BAS0
DC Characteristics 1 (TC = 0°C to +85°C, VDD = 1.5V ± 0.075V, VSS = 0V)
Data rate (Mbps)
Parameter
Operating current
(ACT-PRE)
(Another rank is in IDD2P1)
Operating current
(ACT-PRE)
(Another rank is in IDD3N)
Operating current
(ACT-READ-PRE)
(Another rank is in IDD2P1)
Operating current
(ACT-READ-PRE)
(Another rank is in IDD3N)
1600
1333
Symbol
max.
max.
Unit
IDD0
856
800
mA
IDD0
1080
1000
mA
IDD1
976
920
mA
IDD1
1200
1120
mA
IDD2P1
592
560
mA
Fast PD Exit
Slow PD Exit
Precharge power-down standby
current
IDD2P0
320
320
mA
Precharge standby current
IDD2N
800
720
mA
Precharge standby ODT current
IDD2NT
800
720
mA
Precharge quiet standby current
IDD2Q
800
720
mA
Active power-down current
(Always fast exit)
IDD3P
624
592
mA
Active standby current
IDD3N
1040
960
mA
IDD4R
1576
1400
mA
IDD4R
1800
1600
mA
IDD4W
1616
1440
mA
IDD4W
1840
1640
mA
IDD5B
2936
2880
mA
IDD5B
3160
3080
mA
IDD7
2376
2280
mA
IDD7
2600
2480
mA
IDD8
272
272
mA
Operating current
(Burst read operating)
(Another rank is in IDD2P1)
Operating current
(Burst read operating)
(Another rank is in IDD3N)
Operating current
(Burst write operating)
(Another rank is in IDD2P1)
Operating current
(Burst write operating)
(Another rank is in IDD3N)
Burst refresh current
(Another rank is in IDD2P1)
Burst refresh current
(Another rank is in IDD3N)
All bank interleave read current
(Another rank is in IDD2P1)
All bank interleave read current
(Another rank is in IDD3N)
RESET low current
Data Sheet E1717E50 (Ver. 5.0)
10
Notes
EBJ81UG8BAS0
Self-Refresh Current (TC = 0°C to +85°C, VDD = 1.5V ± 0.075V)
Parameter
Self-refresh current
normal temperature range
Self-refresh current
extended temperature range
Auto self-refresh current (optional)
Symbol
max.
Unit
IDD6
400
mA
IDD6ET
480
mA
IDD6TC

mA
Notes
Timings used for IDD and IDDQ Measurement-Loop Patterns
DDR3-1600
DDR3-1333
Parameter
11-11-11
9-9-9
Unit
CL
11
9
nCK
tCK min.
1.25
1.5
ns
nRCD min.
11
9
nCK
nRC min.
39
33
nCK
nRAS min.
28
24
nCK
nRP min.
11
9
nCK
nFAW
24
20
nCK
nRRD
5
4
nCK
nRFC
208
174
nCK
Data Sheet E1717E50 (Ver. 5.0)
11
EBJ81UG8BAS0
Pin Functions
CK, /CK (input pins)
CK and /CK are differential clock inputs. All address and control input signals are sampled on the crossing of the
positive edge of CK and negative edge of /CK. Output (read) data is referenced to the crossings of CK and /CK
(both directions of crossing).
/CS (input pins)
All commands are masked when /CS is registered high. /CS provides for external rank selection on systems with
multiple ranks. /CS is considered part of the command code.
/RAS, /CAS, and /WE (input pins)
/RAS, /CAS and /WE (along with /CS) define the command being entered.
A0 to A15 (input pins)
Provided the row address for active commands and the column address for read/write commands to select one
location out of the memory array in the respective bank. (A10(AP) and A12(/BC) have additional functions, see
below) The address inputs also provide the op-code during mode register set commands.
[Address Pins Table]
Address (A0 to A15)
Row address (RA)
Column address (CA)
AX0 to AX15
AY0 to AY9
Notes
A10(AP) (input pin)
A10 is sampled during read/write commands to determine whether auto-precharge should be performed to the
accessed bank after the read/write operation. (high: auto-precharge; low: no auto-precharge)
A10 is sampled during a precharge command to determine whether the precharge applies to one bank (A10 = low)
or all banks (A10 = high). If only one bank is to be precharged, the bank is selected by bank addresses (BA).
A12 (/BC) (input pin)
A12 is sampled during read and write commands to determine if burst chop (on-the-fly) will be performed.
(A12 = high: no burst chop, A12 = low: burst chopped.)
BA0 to BA2 (input pins)
BA0, BA1 and BA2 define to which bank an active, read, write or precharge command is being applied. BA0 and
BA1 also determine if a mode register is to be accessed during a MRS cycle.
[Bank Select Signal Table]
BA0
BA1
BA2
Bank 0
L
L
L
Bank 1
H
L
L
Bank 2
L
H
L
Bank 3
H
H
L
Bank 4
L
L
H
Bank 5
H
L
H
Bank 6
L
H
H
Bank 7
H
H
H
Remark: H: VIH. L: VIL.
Data Sheet E1717E50 (Ver. 5.0)
12
EBJ81UG8BAS0
CKE (input pins)
CKE high activates, and CKE low deactivates, internal clock signals and device input buffers and output drivers.
Taking CKE low provides precharge power-down and self-refresh operation (all banks idle), or active power-down
(row active in any bank). CKE is asynchronous for self-refresh exit. After VREF has become stable during the
power-on and initialization sequence, it must be maintained for proper operation of the CKE receiver. For proper
self-refresh entry and exit, VREF must be maintained to this input. CKE must be maintained high throughout read
and write accesses. Input buffers, excluding CK, /CK, ODT and CKE are disabled during power-down. Input buffers,
excluding CKE, are disabled during self-refresh.
DQ (input and output pins)
Bi-directional data bus.
DQS and /DQS (input and output pins)
Output with read data, input with write data. Edge-aligned with read data, centered in write data.
The data strobe DQS is paired with differential signals /DQS to provide differential pair signaling to the system during
READs and WRITEs.
ODT (input pins)
ODT (registered high) enables termination resistance internal to the DDR3 SDRAM. When enabled, ODT is only
applied to each DQ, DQS, /DQS, DM. The ODT pin will be ignored if the mode register (MR1) is programmed to
disable ODT.
DM (input pins)
DM is the reference signal of the data input mask function. DMs are sampled at the cross point of DQS and /DQS.
VDD (power supply pins)
1.5V is applied. (VDD is for the internal circuit.)
VDDSPD (power supply pin)
3.3V is applied (For serial EEPROM).
VSS (power supply pins)
Ground is connected.
VTT (power supply pins)
I/O termination supply for SDRAM.
VREFDQ (power supply pin)
Reference voltage for DQ.
VREFCA (power supply pin)
Reference voltage for CA.
/RESET (input pin)
/RESET is negative active signal (active low) and is referred to VSS.
Data Sheet E1717E50 (Ver. 5.0)
13
EBJ81UG8BAS0
Physical Outline
Unit: mm
Front side
21.15
2.00 Min
9.00
3.80 Max
(DATUM -A-)
Full R
1
203
6.00
4.00 Min
Component area
(Front)
A
B
21.00
2.15
2.45
39.00
D
1.00 ± 0.10
67.60
Back side
63.60
2.45
2.15
20.00
30.00
204
Component area
(Back)
4.00 ± 0.10
2
C
(DATUM -A-)
Detail A
Detail B
0.45 ± 0.03
Detail C
FULL R
1.65
3.00
4.00 ± 0.10
0.35 Max
2.55 Min
0.60
1.00 ± 0.10
Detail D
Contact pad
0.2 Max
0.35 Max
3.00
1.35
ECA-TS2-0215-02
Note: 1. Tolerances on all dimensions ±0.15 unless otherwise specified.
Data Sheet E1717E50 (Ver. 5.0)
14
EBJ81UG8BAS0
CAUTION FOR HANDLING MEMORY MODULES
When handling or inserting memory modules, be sure not to touch any components on the modules, such
as the memory ICs, chip capacitors and chip resistors. It is necessary to avoid undue mechanical stress
on these components to prevent damaging them.
In particular, do not push module cover or drop the modules in order to protect from mechanical defects,
which would be electrical defects.
When re-packing memory modules, be sure the modules are not touching each other.
Modules in contact with other modules may cause excessive mechanical stress, which may damage the
modules.
MDE0202
NOTES FOR CMOS DEVICES
1
PRECAUTION AGAINST ESD FOR MOS DEVICES
Exposing the MOS devices to a strong electric field can cause destruction of the gate
oxide and ultimately degrade the MOS devices operation. Steps must be taken to stop
generation of static electricity as much as possible, and quickly dissipate it, when once
it has occurred. Environmental control must be adequate. When it is dry, humidifier
should be used. It is recommended to avoid using insulators that easily build static
electricity. MOS devices must be stored and transported in an anti-static container,
static shielding bag or conductive material. All test and measurement tools including
work bench and floor should be grounded. The operator should be grounded using
wrist strap. MOS devices must not be touched with bare hands. Similar precautions
need to be taken for PW boards with semiconductor MOS devices on it.
2
HANDLING OF UNUSED INPUT PINS FOR CMOS DEVICES
No connection for CMOS devices input pins can be a cause of malfunction. If no
connection is provided to the input pins, it is possible that an internal input level may be
generated due to noise, etc., hence causing malfunction. CMOS devices behave
differently than Bipolar or NMOS devices. Input levels of CMOS devices must be fixed
high or low by using a pull-up or pull-down circuitry. Each unused pin should be connected
to VDD or GND with a resistor, if it is considered to have a possibility of being an output
pin. The unused pins must be handled in accordance with the related specifications.
3
STATUS BEFORE INITIALIZATION OF MOS DEVICES
Power-on does not necessarily define initial status of MOS devices. Production process
of MOS does not define the initial operation status of the device. Immediately after the
power source is turned ON, the MOS devices with reset function have not yet been
initialized. Hence, power-on does not guarantee output pin levels, I/O settings or
contents of registers. MOS devices are not initialized until the reset signal is received.
Reset operation must be executed immediately after power-on for MOS devices having
reset function.
CME0107
Data Sheet E1717E50 (Ver. 5.0)
15
EBJ81UG8BAS0
The information in this document is subject to change without notice. Before using this document, confirm that this is the latest version.
No part of this document may be copied or reproduced in any form or by any means without the prior
written consent of Elpida Memory, Inc.
Elpida Memory, Inc. does not assume any liability for infringement of any intellectual property rights
(including but not limited to patents, copyrights, and circuit layout licenses) of Elpida Memory, Inc. or
third parties by or arising from the use of the products or information listed in this document. No license,
express, implied or otherwise, is granted under any patents, copyrights or other intellectual property
rights of Elpida Memory, Inc. or others.
Descriptions of circuits, software and other related information in this document are provided for
illustrative purposes in semiconductor product operation and application examples. The incorporation of
these circuits, software and information in the design of the customer's equipment shall be done under
the full responsibility of the customer. Elpida Memory, Inc. assumes no responsibility for any losses
incurred by customers or third parties arising from the use of these circuits, software and information.
[Product applications]
Be aware that this product is for use in typical electronic equipment for general-purpose applications.
Elpida Memory, Inc. makes every attempt to ensure that its products are of high quality and reliability.
However, this product is not intended for use in the product in aerospace, aeronautics, nuclear power,
combustion control, transportation, traffic, safety equipment, medical equipment for life support, or other
such application in which especially high quality and reliability is demanded or where its failure or
malfunction may directly threaten human life or cause risk of bodily injury. Customers are instructed to
contact Elpida Memory's sales office before using this product for such applications.
[Product usage]
Design your application so that the product is used within the ranges and conditions guaranteed by
Elpida Memory, Inc., including the maximum ratings, operating supply voltage range, heat radiation
characteristics, installation conditions and other related characteristics. Elpida Memory, Inc. bears no
responsibility for failure or damage when the product is used beyond the guaranteed ranges and
conditions. Even within the guaranteed ranges and conditions, consider normally foreseeable failure
rates or failure modes in semiconductor devices and employ systemic measures such as fail-safes, so
that the equipment incorporating Elpida Memory, Inc. products does not cause bodily injury, fire or other
consequential damage due to the operation of the Elpida Memory, Inc. product.
[Usage environment]
Usage in environments with special characteristics as listed below was not considered in the design.
Accordingly, our company assumes no responsibility for loss of a customer or a third party when used in
environments with the special characteristics listed below.
Example:
1) Usage in liquids, including water, oils, chemicals and organic solvents.
2) Usage in exposure to direct sunlight or the outdoors, or in dusty places.
3) Usage involving exposure to significant amounts of corrosive gas, including sea air, CL 2 , H 2 S, NH 3 ,
SO 2 , and NO x .
4) Usage in environments with static electricity, or strong electromagnetic waves or radiation.
5) Usage in places where dew forms.
6) Usage in environments with mechanical vibration, impact, or stress.
7) Usage near heating elements, igniters, or flammable items.
If you export the products or technology described in this document that are controlled by the Foreign
Exchange and Foreign Trade Law of Japan, you must follow the necessary procedures in accordance
with the relevant laws and regulations of Japan. Also, if you export products/technology controlled by
U.S. export control regulations, or another country's export control laws or regulations, you must follow
the necessary procedures in accordance with such laws or regulations.
If these products/technology are sold, leased, or transferred to a third party, or a third party is granted
license to use these products, that third party must be made aware that they are responsible for
compliance with the relevant laws and regulations.
M01E1007
Data Sheet E1717E50 (Ver. 5.0)
16
Similar pages