RoHS Compliant
2GB DDR3 SDRAM SO-DIMM
Product Specifications
December 31, 2015
Version 1.2
Apacer Technology Inc.
1F., No.32, Zhongcheng Rd., Tucheng Dist., New Taipei City 236, Taiwan
Tel: +886-2-2267-8000 Fax: +886-2-2267-2261
www.apacer.com
©Apacer Technology Inc.
1
Table of Contents
General Description ....................................................................................................... 2
Ordering Information ..................................................................................................... 2
Key Parameters .............................................................................................................. 2
Specifications: ................................................................................................................ 3
Features: ......................................................................................................................... 4
Pin Assignments ............................................................................................................. 5
Pin Descriptions ............................................................................................................. 7
Functional Block Diagram ............................................................................................. 8
Absolute Maximum Ratings .......................................................................................... 9
DRAM Component Operating Temperature Range ..................................................... 10
Operating Conditions ................................................................................................... 11
Mechanical Drawing .................................................................................................... 12
©Apacer Technology Inc.
2
General Description
Apacer 78.A2GC9.4000C is a 256M x 64 DDR3 SDRAM (Synchronous
DRAM) SO-DIMM. This high-density memory module consists of 8 pieces
256M x 8 bits with 8 banks DDR3 synchronous DRAMs in BGA packages and
a 2K EEPROM. The module is a 204-pins small-outlined, dual in-line memory
module and is intended for mounting into a connector socket. Decoupling
capacitors are mounted on the printed circuit board for each DDR3 SDRAM.
The following provides general specifications of this module.
Ordering Information
Part Number Bandwidth Speed Grade Max Freque n cy CAS Latency
78.A2GC9.4000C 10.6 GB/sec 1333 Mbps 666 MHz CL9
Density Organization Component Rank
2GB 256M x 64 256M x8*8 1
Key Parameters
MT/s DDR3-1066 DDR3-1333 DDR3-1600 Unit
Grade -CL7 -CL9 -CL11
tCK (min) 1.875 1.5 1.25 ns
CAS latency 7 9 11 tCK
tRCD (min) 13.125 13.5 13.75 ns
tRP (min) 13.125 13.5 13.75 ns
tRAS (min) 37.5 36 35 ns
tRC (min) 50.625 49.5 48.75 ns
CL-tRCD-tRP 7-7-7 9-9-9 11-11-11 tCK
©Apacer Technology Inc.
3
Specifications:
On-DIMM thermal sensor : No
Organization: 256 words x 64 bits, 1 rank
Integrating 8 pieces of 2G 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 0.6 mm (pin), lead-free (RoHS compliant)
Power supply VDD: 1.5V ± 0.075V
Serial Presence Detect (SPD)
Eight Internal banks for concurrent operation (components)
Interface: SSTL_15
Burst lengths (BL): 8 and 4 with Burst Chop (BC)
CAS Latency (CL): 6, 7, 8, 9
CAS Write Latency (CWL): 5, 6, 7
Supports auto pre-charge option for each burst access
Supports auto-refresh/self-refresh
Refresh cycles: 7.8 at 0 TC +85
©Apacer Technology Inc.
4
Features:
Double-date-rate architecture: 2 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: edge-aligned with data for read; center-aligned with data for write
Differential clock inputs (CK and /CK)
DLL aligns DQ and DQS transitions with CK transitions
Data mask (DM) for writing data
Posted CAS by programmable additive latency for enhanced command
and data bus efficiency
On-Die-Termination (ODT) for improved signal quality: Synchronous
ODT/Dynamic ODT/Asynchronous ODT
Multi-Purpose Register (MPR) for temperature 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, auto/manual self-refresh
Programmable output driver impedance control
©Apacer Technology Inc.
5
Pin Assignments
Pin No. Pin name Pin No. Pin name Pin No. Pin name Pin No. Pin name
1 VREFDQ 53 DQ19 105 VDD 157 DQ42
3 VSS 55 VSS 107 A10(AP) 159 DQ43
5 DQ0 57 DQ24 109 BA0 161 VSS
7 DQ1 59 DQ25 111 VDD 163 DQ48
9 VSS 61 VSS 113 /WE 165 DQ49
11 DM0 63 DM3 115 /CAS 167 VSS
13 VSS 65 VSS 117 VDD 169 /DQS6
15 DQ2 67 DQ26 119 A13 171 DQS6
17 DQ3 69 DQ27 121 /CS1 173 VSS
19 VSS 71 VSS 123 VDD 175 DQ50
21 DQ8 73 CKE0 125 NC 177 DQ51
23 DQ9 75 VDD 127 VSS 179 VSS
25 VSS 77 NC 129 DQ32 181 DQ56
27 /DQS1 79 BA2 131 DQ33 183 DQ57
29 DQS1 81 VDD 133 VSS 185 VSS
31 VSS 83 A12(BC) 135 /DQS4 187 DM7
33 DQ10 85 A9 137 DQS4 189 VSS
35 DQ11 87 VDD 139 VSS 191 DQ58
37 VSS 89 A8 141 DQ34 193 DQ59
39 DQ16 91 A5 143 DQ35 195 VSS
41 DQ17 93 VDD 145 VSS 197 SA0
43 VSS 95 A3 147 DQ40 199 VDDSPD
45 /DQS2 97 A1 149 DQ41 201 SA1
47 DQS2 99 VDD 151 VSS 203 VTT
49 VSS 101 CK0 153 DM5
51 DQ18 103 /CK0 155 VSS
©Apacer Technology Inc.
6
Pin No. Pin name Pin No. Pin name Pin No. Pin name Pin No. Pin name
2 VSS 54 VSS 106 VDD 158 DQ46
4 DQ4 56 DQ28 108 BA1 160 DQ47
6 DQ5 58 DQ29 110 /RAS 162 VSS
8 VSS 60 VSS 112 VDD 164 DQ52
10 /DQS0 62 /DQS3 114 /CS0 166 DQ53
12 DQS0 64 DQS3 116 ODT0 168 VSS
14 VSS 66 VSS 118 VDD 170 DM6
16 DQ6 68 DQ30 120 ODT1 172 VSS
18 DQ7 70 DQ31 122 NC 174 DQ54
20 VSS 72 VSS 124 VDD 176 DQ55
22 DQ12 74 CKE1 126 VREFCA 178 VSS
24 DQ13 76 VDD 128 VSS 180 DQ60
26 VSS 78 A15(NC) 130 DQ36 182 DQ61
28 DM1 80 A14(NC) 132 DQ37 184 VSS
30 /RESET 82 VDD 134 VSS 186 /DQS7
32 VSS 84 A11 136 DM4 188 DQS7
34 DQ14 86 A7 138 VSS 190 VSS
36 DQ15 88 VDD 140 DQ38 192 DQ62
38 VSS 90 A6 142 DQ39 194 DQ63
40 DQ20 92 A4 144 VSS 196 VSS
42 DQ21 94 VDD 146 DQ44 198 /EVENT
44 VSS 96 A2 148 DQ45 200 SDA
46 DM2 98 A0 150 VSS 202 SCL
48 VSS 100 VDD 152 /DQS5 204 VTT
50 DQ22 102 CK1 154 DQS5
52 DQ23 104 /CK1 156 VSS
©Apacer Technology Inc.
7
Pin Descriptions
Pin Name Description
Ax* SDRAM address bus
BAx SDRAM bank select
DQx DIMM memory data bus
/RAS SDRAM row address strobe
/CAS SDRAM column address strobe
/WE SDRAM write enable
/CSx SDRAM Chip select lines
CKEx SDRAM clock enable lines
CKx SDRAM clock input
/CKx SDRAM Differential clock input
DQSx SDRAM data strobes(positive line of differential pair)
/DQSx SDRAM data strobes(negative line of differential pair)
DMx SDRAM input mask
SCL Clock input for serial PD
SDA Data input/output for serial PD
SAx Serial address input
VDD Power for internal circuit
VDDSPD Serial EEPROM positive power supply
VREFDQ SDRAM I/O reference supply
VREFCA SDRAM command/address reference supply
VSS Power supply return(ground)
VTT SDRAM I/O termination supply
/RESET Set DRAM to known state
ODTx On-die termination control lines
NC Spare pins(no connect)
/EVENT An output of the thermal sensor to indicate critical module temperature
*IC Component Composition: 128Mx8 A0~A13
256Mx8 A0~A14
512Mx8 A0~A15
1024Mx8 A0~A15
©Apacer Technology Inc.
8
Functional Block Diagram
DQS
DQS
DM
DQ [0:7]
DQS0
DQS0
DM0
DQ [0:7]
CS
RAS
CAS
WE
CK
CK
CKE
ODT
A[0:N]\BA[0:N]
S0
RAS
CAS
WE
CK0
CK0
CKE0
ODT0
A[0:N]\BA[0:N
]
DQS2
DQS2
DM2
DQ [16:23]
DQS4
DQS4
DM4
DQ [32::39]
DQS6
DQS6
DM6
DQ [48::55]
DQS1
DQS1
DM1
DQ [8:15]
DQS3
DQS3
DM3
DQ [24:31]
DQS5
DQS5
DM5
DQ [40:47]
DQS7
DQS7
DM7
DQ [56::63]
D0
SCL SCL
SA0 A0 (SPD) SDA
SA1 A1
A2 WP
Vtt Vtt
D0 D1 D2 D3
D4 D5 D6 D7
V1 V2 V3 V4
V1 V2 V3 V4
Address and Control lines
Vtt Vtt
VDDSPD SPD / TS
V
REFCA D0-D7
V
REFDQ D0-D7
V
DD D0-D7
V
SS D0-D7, SPD, Temp sensor
CK0 D0-D7
CK0D0-D7
CK1 Terminated at near
CK1card edge
S1 NC
ODT1 NC
CKE1 NC
EVENT Temp Sensor
RESET D0-D7
NOTES
1. DQ wiring may differ from that shown
however ,DQ, DM, DQS, and DQS
relationships are maintained as shown
Vtt Vtt
VDD
DQS
DQS
DM
DQ [0:7]
CS
RAS
CAS
WE
CK
CK
CKE
ODT
A[0:N]\BA[0:N]
D4
DQS
DQS
DM
DQ [0:7]
CS
RAS
CAS
WE
CK
CK
CKE
ODT
A[0:N]\BA[0:N]
D1
DQS
DQS
DM
DQ [0:7]
CS
RAS
CAS
WE
CK
CK
CKE
ODT
A[0:N]\BA[0:N]
D5
DQS
DQS
DM
DQ [0:7]
CS
RAS
CAS
WE
CK
CK
CKE
ODT
A[0:N]\BA[0:N]
D2
DQS
DQS
DM
DQ [0:7]
CS
RAS
CAS
WE
CK
CK
CKE
ODT
A[0:N]\BA[0:N]
D6
DQS
DQS
DM
DQ [0:7]
CS
RAS
CAS
WE
CK
CK
CKE
ODT
A[0:N]\BA[0:N]
D3
DQS
DQS
DM
DQ [0:7]
CS
RAS
CAS
WE
CK
CK
CKE
ODT
A[0:N]\BA[0:N]
D7
ZQ
240ohm
+/-1%
ZQ
240ohm
+/-1% ZQ
240ohm
+/-1%
ZQ
240ohm
+/-1%
ZQ
240ohm
+/-1%
ZQ
240ohm
+/-1%
ZQ
240ohm
+/-1%
ZQ
240ohm
+/-1%
©Apacer Technology Inc.
9
Absolute Maximum Ratings
Parameter Symbol Description Units
Voltage on VDD pin relative to Vss VDD - 0.4 V ~ 1.975 V V
Voltage on VDDQ pin relative to Vss VDDQ - 0.4 V ~ 1.975 V V
Voltage on any pin relative to Vss VIN, VOUT - 0.4 V ~ 1.975 V V
Storage Temperature TSTG -55 to +100
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. For the measurement
conditions, please refer to JESD51-2 standard.
3. VDD and VDDQ must be within 300mV of each other at all times; and VREF must not be greater than 0.6 x VDDQ,
when VDD and VDDQ are less than 500mV; VREF may be equal to or less than 300mV.
.
©Apacer Technology Inc.
10
DRAM Component Operating Temperature
Range
Symbol Parameter Rating Units Notes
TOPER
Normal Operating Temperature Range 0 to 85 1,2
Extended Temperature Range 85 to 95 1,3
Notes:
1. Operating Temperature TOPER is the case surface temperature on the center / top side of the DRAM. For
measurement conditions please refer to the JEDEC document JESD51-2.
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 - 85 under all operating
conditions.
3. Some applications require operation of the DRAM in the Extended Temperature Range between 85 and 95
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 3.9 µs.
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 A6 = 0b and
MR2 A7 = 1b), in this case IDD6 current can be increased around 10~20% than normal Temperature
range.
©Apacer Technology Inc.
11
Operating Conditions
Recommended DC Operating Conditions - DDR3 (1.5V) operation
Symbol Parameter
Rating
Units
Min. Typ. Max.
VDD Supply Voltage 1.425 1.5 1.575 V
VDDQ Supply Voltage for Output 1.425 1.5 1.575 V
Notes:
1. Under all conditions VDDQ must be less than or equal to VDD..
2. VDDQ tracks with VDD. AC parameters are measured with VDD and VDDQ tied together.
©Apacer Technology Inc.
12
Mechanical Drawing
Unit: mm
(All dimensions are in millimeters with ±0.15mm tolerance unless specified otherwise.)
(Max)
©Apacer Technology Inc.
13
Revision History
Revision Date Description Remark
0.9 08/28/2012 Official release
1.0 08/29/2012 release
1.1 07/23/2013 Changed headquarters address
1.2 05/08/2015 Updated Mechanical Drawing
©Apacer Technology Inc.
14
Global Presence
Taiwan (Headquarters)
Apacer Technology Inc.
1F., No.32, Zhongcheng Rd., Tucheng Dist.,
New Taipei City 236, Taiwan R.O.C.
Tel: +886-2-2267-8000
Fax: +886-2-2267-2261
amtsales@apacer.com
U.S.A.
Apacer Memory America, Inc.
46732 Lakeview Blvd., Fremont, CA 94538
Tel: 1-408-518-8699
Fax: 1-510-249-9568
sa@apacerus.com
Japan
Apacer Technolog y Corp.
5F, Matsura Bldg., Shiba, Minato-Ku
Tokyo, 105-0014, Japan
Tel: 81-3-5419-2668
Fax: 81-3-5419-0018
jpservices@apacer.com
Europe
Apacer Technology B.V.
Science Park Eindhoven 5051 5692 EB Son,
The Netherlands
Tel: 31-40-267-0000
Fax: 31-40-290-0686
sales@apacer.nl
China
Apacer Electronic (Shanghai) Co., Ltd.
Room D, 22/FL, No.2, Lane 600, JieyunPlaza,
Tianshan RD , Shanghai , 200051, China
Tel: 86-21-6228-9939
Fax:86-21-6228-9936
sales@apacer.com.cn
India
Apacer Technologies Pvt Ltd.
Unit No.201, "Brigade Corner", 7th Block Jayanagar,
Yediyur Circle, Bangalore – 560082, India
Tel: 91-80-4152-9061
Fax: 91-80-4170-0215
sales_india@apacer.com