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256MB - 32Mx64 SDRAM UNBUFFERED
FEATURES
PC100 and PC133 compatible Burst Mode Operation Auto and Self Refresh capability LVTTL compatible inputs and outputs Serial Presence Detect with EEPROM Fully synchronous: All signals are registered on the positive edge of the system clock Programmable Burst Lengths: 1, 2, 4, 8 or Full Page 3.3V 0.3V Power Supply 144 Pin SO-DIMM JEDEC * Package height Option: JD1: 31.75mm (1.25")
WED3DG6435V-D1 -JD1
DESCRIPTION
The WED3DG6435V is a 32Mx64 synchronous DRAM module which consists of eight 32Mx8 SDRAM components in TSOP II package, and one 2Kb EEPROM in an 8 pin TSOP package for Serial Presence Detect which are mounted on a 144 pin SO-DIMM multilayer FR4 Substrate.
* This product is subject to change without notice. NOTE: Consult factory for availability of: * RoHS compliant products * Vendor source control options * Industrial temperature option
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
PINOUT PIN 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 FRONT VSS DQ0 DQ1 DQ2 DQ3 VCC DQ4 DQ5 DQ6 DQ7 VSS DQMB0 DQMB1 VCC A0 A1 A2 VSS DQ8 DQ9 DQ10 DQ11 VCC DQ12 PIN 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 BACK VSS DQ32 DQ33 DQ34 DQ35 VCC DQ36 DQ37 DQ38 DQ39 VSS DQMB4 DQMB5 VCC A3 A4 A5 VSS DQ40 DQ41 DQ42 DQ43 VCC DQ44 PIN 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 FRONT DQ13 DQ14 DQ15 VSS NC NC CK0 VCC RAS# WE# CS0# NC NC VSS NC NC VCC DQ16 DQ17 DQ18 DQ19 VSS DQ20 DQ21 PIN 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 BACK DQ45 DQ46 DQ47 VSS NC NC CKE0 VCC CAS# NC A12 NC CK1 VSS NC NC VCC DQ48 DQ49 DQ50 DQ51 VSS DQ52 DQ53 PIN 97 99 101 103 105 107 109 111 113 115 117 119 121 123 125 127 129 131 133 135 137 139 141 143 BACK DQ22 DQ23 VCC A6 A8 VSS A9 A10 VCC DQMB2 DQMB3 VSS DQ24 DQ25 DQ26 DQ27 VCC DQ28 DQ29 DQ30 DQ31 VSS SDA VCC PIN 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 BACK DQ54 DQ55 VCC A7 BA0 VSS BA1 A11 VCC DQMB6 DQMB7 VSS DQ56 DQ57 DQ58 DQ59 VCC DQ60 DQ61 DQ62 DQ63 VSS SCL VCC
PIN NAMES
A0 - A12 BA0-1 DQ0-63 CK0, CK1 CKE0 CS0 RAS# CAS# WE# DQMB0-7 VCC VSS SDA SCL DNU NC Address Input (Multiplexed) Select Bank Data Input/Output Clock Input Clock Enable Input Chip Select Input Row Address Strobe Column Address Strobe Write Enable DQM Power Supply (3.3V) Ground Serial Data I/O Serial Clock Do Not Use No Connect
** These pins should be NC in the system which does not support SPD.
July 2005 Rev. 5
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FUNCTIONAL BLOCK DIAGRAM
WED3DG6435V-D1 -JD1
WE# S0# DQMB0 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQMB1 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQMB2 DQ16 DQ17 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 DQMB3 DQ24 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 DQM I/O 0 I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7 S0# WE# DQ56 DQ57 DQ58 DQ59 DQ60 DQ61 DQ62 DQ63 DQM I/O 0 I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7 S0# WE# DQ48 DQ49 DQ50 DQ51 DQ52 DQ53 DQ54 DQ55 DQMB7 DQM I/O 0 I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7 S0# WE# DQM I/O 0 I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7 S0# WE# DQ40 DQ41 DQ42 DQ43 DQ44 DQ45 DQ46 DQ47 DQMB6 DQM I/O 0 I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7 S0# WE# DQM I/O 0 I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7 S0# WE# DQ32 DQ33 DQ34 DQ35 DQ36 DQ37 DQ38 DQ39 DQMB5 DQM I/O 0 I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7 S0# WE# DQMB4 DQM I/O 0 I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7 S0# WE#
NOTE: DQ writing may differ than described in this drawing, however DQ/DQMB/CKE/S relationships must be maintained as shown. RAS# CAS# CKE0 BA0-BA1 A0-A12 RAS#: SDRAM CAS#: SDRAM CKE0: SDRAM BA0-BA1: SDRAM A0-A12: SDRAM *CLOCK WIRING CLOCK SDRAMS INPUT *CK0 4 - SDRAMS *CK1 4 - SDRAMS
*Wire per Clock Loading Table/Wiring Diagrams
VCC VSS
SDRAM SDRAM SCL
SERIAL PD SDA A0 A1 A2
Note: All resister values are 10 unless otherwise specified.
July 2005 Rev. 5
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ABSOLUTE MAXIMUM RATINGS
Parameter Voltage on any pin relative to VSS Voltage on VCC supply relative to VSS Storage Temperature Power Dissipation Short Circuit Current Symbol VIN, VOUT VCC, VCCQ TSTG PD IOS
WED3DG6435V-D1 -JD1
Value -1.0 ~ 4.6 -1.0 ~ 4.6 -55 ~ +150 9 50
Units V V C W mA
Note: Permanent device damage may occur if "ABSOLUTE MAXIMUM RATINGS" are exceeded. Functional operation should be restricted to recommended operating condition. Exposure to higher than recommended voltage for extended periods of time could affect device reliability.
RECOMMENDED DC OPERATING CONDITIONS
Voltage Referenced to: VSS = 0V, TA = 0C to +70C Parameter Supply Voltage Input High Voltage Input Low Voltage Output High Voltage Output Low Voltage Input Leakage Current Symbol VCC VIH VIL VOH VOL ILI Min 3.0 2.0 -0.3 2.4 -- -10 Typ 3.3 3.0 -- -- -- -- Max 3.6 VCCQ+0.3 0.8 -- 0.4 10 Unit V V V V V A 1 2 IOH= -2mA IOL= -2mA 3 Note
Note: 1. VIH (max)= 5.6V AC. The overshoot voltage duration is 3ns. 2. VIL (min)= -2.0V AC. The undershoot voltage duration is 3ns. 3. Any input 0V VIN VCCQ Input leakage currents include Hi-Z output leakage for all bi-directional buffers with Tri-State outputs.
CAPACITANCE
TA = 25C, f = 1MHz, VCC = 3.3V, VREF = 1.4V 200mV
Parameter Input Capacitance (A0-A12) Input Capacitance (RAS#,CAS#,WE#) Input Capacitance (CKE0) Input Capacitance (CK0) Input Capacitance (CS0#) Input Capacitance (DQM0-DQM7) Input Capacitance (BA0-BA1) Data Input/Output Capacitance (DQ0-DQ63) Symbol CIN1 CIN2 CIN3 CIN4 CIN5 CIN6 CIN7 COUT Max 36 36 36 16 36 7 36 10 Unit pF pF pF pF pF pF pF pF
July 2005 Rev. 5
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OPERATING CURRENT CHARACTERISTICS
VCC = 3.3V, TA = 0C to +70C
WED3DG6435V-D1 -JD1
Version Parameter Operating Current (One bank active) Precharge Standby Current in Power Down Mode Active Standby Current in Non-Power Down Mode Symbol ICC1 Conditions Burst Length = 1 tRC tRC(min) IOL = 0mA CKE VIL(max), tCC = 10ns CKE VIH(min), CS VIH(min), tcc = 10ns Input signals are changed one time during 20ns Io = mA Page burst 4 Banks activated tCCD = 2CK tRC tRC(min) CKE 0.2V 100/133 1080 Units mA Note 1
ICC2P ICC3N ICC4
16 360
mA mA
Operating Current (Burst mode)
1,200
mA
1
Refresh Current Self Refresh Current
Notes: 1. Measured with outputs open. 2. Refresh period is 64ms.
ICC5 ICC6
2,280 24
mA mA
2
July 2005 Rev. 5
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AC TIMING PARAMETERS
Speed Grade 100MHz Symbol tCK tCH tCL tIS tIH tAC Parameter Clock Period Clock High Time Rated @1.5V Clock Low Time Input Setup Times Min 10 3 3 2 2 1 1 Max
WED3DG6435V-D1 -JD1
Speed Grade 133MHz Min 7.5 2.5 2.5 1.5 1.5 0.8 0.8 Max Units ns ns ns ns ns ns ns ns Notes
tOH tOHZ tCCD tCBD tCKE tRP tRAS tRCD tRRD tRC tDQD tDWD tMRD tROH tDQZ tDQM tDPL tDAL tSB tSRX tPDE tCKSTP tREF tRFC
1. 2. 3. 4. 5. 6.
Address/ Command & CKE Data Input Hold Times Address/Command & CKE Data Output Valid From Clock CAS# Latency = 2 or 3, LVTTL levels, Rated @ 50 pF all outputs switching Output Hold From Clock Rated @ 50 pF (1.8 ns @ 0 pf) Output Valid to Z CAS to CAS Delay CAS Bank Delay CKE to Clock Disable RAS Precharge Time RAS Active Time Activate to Command Delay (RAS to CAS Delay) RAS to RAS Bank Activate Delay RAS Cycle Time DQM to Input Data Delay Write Cmd. to Input Data Delay Mode Register set to Active delay Precharge to O/P in High Z DQM to Data in High Z for read DQM to Data mask for write Data-in to PRE Command Period Data-in to ACT (PRE) Command period (Auto precharge) Power Down Mode Entry Self Refresh Exit Time Power Down Exit Set up Time Clock Stop During Self Refresh or Power Down Refresh Period Row Refresh Cycle Time
6.0 (tco = 5.2) 3 3 1 1 1 20 50 20 20 70 0 0 3 2 0 20 5 1 10 1 200 64 80.0 75.0 10 1 200 2.7 2.7 1 1 1 20 45 20 15 67.5 0 0 3 2 0 15 5
5.4 (tco = 4.6)
1
9
7
CL
CL
1
64
ns ns tCK tCK tCK ns ns ns ns ns tCK tCK tCK tCK tCK tCK ns tCK tCK ns tCK tCK ms ns
2 3
4 5 6
Access times to be measured w/input signals of 1 V/ns edge rate, 0.8 V to 2.0 V, tCO is clock to output with no load. CL = CAS Latency Data Masked on the same clock Self refresh Exit is asynchronous, requiring 10 ns to ensure initiation. Self refresh exit is complete in 10 ns + tRC. Timing is asynchronous. If tIS is not met by rising edge of CK then CKE is assumed latched on next cycle. If the clock is stopped during self refresh or power down, 200 clocks are required before CKE is high.
July 2005 Rev. 5
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ORDERING INFORMATION FOR D1
Ordering Information WED3DG6435V10D1 WED3DG6435V7D1 WED3DG6435V75D1 Speed 100MHz 133MHz 133MHz CAS Latency CL=2 CL=2 CL=3
WED3DG6435V-D1 -JD1
Height* 31.75 (1.250") 31.75 (1.250") 31.75 (1.250")
NOTES: * Consult Factory for availability of RoHS compliant products. (G = RoHS Compliant) * Vendor specific part numbers are used to provide memory components source control. The place holder for this is shown as lower case "x" in the part numbers above and is to be replaced with the respective vendors code. Consult factory for qualified sourcing options. (M = Micron, S = Samsung & consult factory for others) * Consult factory for availability of industrial temperature (-40C to 85C) option
ORDERING INFORMATION FOR JD1
Ordering Information WED3DG6435V10JD1 WED3DG6435V7JD1 WED3DG6435V75JD1 Speed 100MHz 133MHz 133MHz CAS Latency CL=2 CL=2 CL=3 Height* 31.75 (1.250") 31.75 (1.250") 31.75 (1.250")
NOTES: * Consult Factory for availability of RoHS compliant products. (G = RoHS Compliant) * Vendor specific part numbers are used to provide memory components source control. The place holder for this is shown as lower case "x" in the part numbers above and is to be replaced with the respective vendors code. Consult factory for qualified sourcing options. (M = Micron, S = Samsung & consult factory for others) * Consult factory for availability of industrial temperature (-40C to 85C) option
PACKAGE DIMENSIONS FOR D1 AND JD1
67.72 (2.661 Max) 2.01 (0.079 Min) 3.81 (0.150) MAX.
3.99 (0.157)
31.75 (1.250) Max 19.99 (0.787)
23.14 (0.913) 28.2 (1.112)
32.79 (1.291) 4.60 (0.181) 1.50 (0.059)
0.99 (0.039) ( 0.004)
* ALL DIMENSIONS ARE IN MILLIMETERS AND (INCHES).
July 2005 Rev. 5 6 White Electronic Designs Corporation * (602) 437-1520 * www.wedc.com
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Document Title
256MB - 32Mx64 SDRAM UNBUFFERED
WED3DG6435V-D1 -JD1
Revision History Rev #
Rev 0 Rev 1 Rev 2
History
Created Data sheet 1.1 Updated Data sheet 2.1 Removed AD1 package option 2.2 Added JD1 package option
Release Date
6-4-03 3-3-04 9-04
Status
Advanced Preliminary Preliminary
Rev 3
3.1 Added timing parameters 3.2 Moved from Preliminary to Final 3.3 Added D1 package option "Not Recommended for New Designs"
9-04
Final
Rev 4
4.1 Added RoHS compliant notification 4.2 Indicated vendor source options 4.3 Added industrial temperature option
7-05
Final
Rev 5
5.1 Added "ED" to part number
7-05
Final
July 2005 Rev. 5
7
White Electronic Designs Corporation * (602) 437-1520 * www.wedc.com

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