DATA SHEET 256MB DDR2 SDRAM SO-DIMM EBE25UD6ABSA (32M words × 64 bits, 1 Rank) Description Features The EBE25UD6ABSA is 32M words × 64 bits, 1 rank DDR2 SDRAM Small Outline Dual In-line Memory Module, mounting 4 pieces of 512M bits DDR2 SDRAM sealed in FBGA package. 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 4 bits prefetch-pipelined architecture. Data strobe (DQS and /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. This module provides high density mounting without utilizing surface mount technology. Decoupling capacitors are mounted beside each FBGA on the module board. • 200-pin socket type small outline dual in line memory module (SO-DIMM) PCB height: 30.0mm Lead pitch: 0.6mm Lead-free • 1.8V power supply • Data rate: 533Mbps/400Mbps (max.) • 1.8V (SSTL_18 compatible) I/O • Double-data-rate architecture: two data transfers per clock cycle • Bi-directional, differential data strobe (DQS and /DQS) is transmitted/received with data, to be used in 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 • Four internal banks for concurrent operation (Component) • Data mask (DM) for write data • Burst lengths: 4, 8 • /CAS Latency (CL): 3, 4, 5 • Auto precharge operation for each burst access • Auto refresh and self refresh modes • 7.8µs average periodic refresh interval • Posted CAS by programmable additive latency for better command and data bus efficiency • Off-Chip-Driver Impedance Adjustment and On-DieTermination for better signal quality • /DQS can be disabled for single-ended Data Strobe operation. Note: Do not push the components or drop the modules in order to avoid mechanical defects, which may result in electrical defects. Document No. E0553E21 (Ver. 2.1) Date Published February 2006 (K) Japan URL: http://www.elpida.com Elpida Memory, Inc. 2004-2006 EBE25UD6ABSA Ordering Information Part number Data rate Mbps (max.) Component JEDEC speed bin (CL-tRCD-tRP) EBE25UD6ABSA-5C-E 533 DDR2-533 (4-4-4) EBE25UD6ABSA-4A-E 400 DDR2-400 (3-3-3) Contact pad Package 200-pin SO-DIMM Gold (lead-free) Mounted devices EDE5116ABSE-5C EDE5116ABSE-5C, -4A Pin Configurations Front side 1 pin 39 pin 41 pin 199 pin 2 pin 40 pin 42 pin 200 pin Back side Front side Back side Pin No. Pin name Pin No. Pin name Pin No. Pin name Pin No. Pin name 1 VREF 51 DQS2 2 VSS 52 DM2 3 VSS 53 VSS 4 DQ4 54 VSS 5 DQ0 55 DQ18 6 DQ5 56 DQ22 7 DQ1 57 DQ19 8 VSS 58 DQ23 9 VSS 59 VSS 10 DM0 60 VSS 11 /DQS0 61 DQ24 12 VSS 62 DQ28 13 DQS0 63 DQ25 14 DQ6 64 DQ29 15 VSS 65 VSS 16 DQ7 66 VSS 17 DQ2 67 DM3 18 VSS 68 /DQS3 19 DQ3 69 NC 20 DQ12 70 DQS3 21 VSS 71 VSS 22 DQ13 72 VSS 23 DQ8 73 DQ26 24 VSS 74 DQ30 25 DQ9 75 DQ27 26 DM1 76 DQ31 27 VSS 77 VSS 28 VSS 78 VSS 29 /DQS1 79 CKE0 30 CK0 80 NC 31 DQS1 81 VDD 32 /CK0 82 VDD 33 VSS 83 NC 34 VSS 84 NC 35 DQ10 85 NC 36 DQ14 86 NC 37 DQ11 87 VDD 38 DQ15 88 VDD 39 VSS 89 A12 40 VSS 90 A11 41 VSS 91 A9 42 VSS 92 A7 43 DQ16 93 A8 44 DQ20 94 A6 45 DQ17 95 VDD 46 DQ21 96 VDD 47 VSS 97 A5 48 VSS 98 A4 49 /DQS2 99 A3 50 NC 100 A2 101 A1 151 DQ42 102 A0 152 DQ46 Data Sheet E0553E21 (Ver. 2.1) 2 EBE25UD6ABSA Front side Back side Pin No. Pin name Pin No. Pin name Pin No. Pin name Pin No. Pin name 103 VDD 153 DQ43 104 VDD 154 DQ47 105 A10/AP 155 VSS 106 BA1 156 VSS 107 BA0 157 DQ48 108 /RAS 158 DQ52 109 /WE 159 DQ49 110 /CS0 160 DQ53 111 VDD 161 VSS 112 VDD 162 VSS 113 /CAS 163 NC 114 ODT0 164 CK1 115 NC 165 VSS 116 NC 166 /CK1 117 VDD 167 /DQS6 118 VDD 168 VSS 119 NC 169 DQS6 120 NC 170 DM6 121 VSS 171 VSS 122 VSS 172 VSS 123 DQ32 173 DQ50 124 DQ36 174 DQ54 125 DQ33 175 DQ51 126 DQ37 176 DQ55 127 VSS 177 VSS 128 VSS 178 VSS 129 /DQS4 179 DQ56 130 DM4 180 DQ60 131 DQS4 181 DQ57 132 VSS 182 DQ61 133 VSS 183 VSS 134 DQ38 184 VSS 135 DQ34 185 DM7 136 DQ39 186 /DQS7 137 DQ35 187 VSS 138 VSS 188 DQS7 139 VSS 189 DQ58 140 DQ44 190 VSS 141 DQ40 191 DQ59 142 DQ45 192 DQ62 143 DQ41 193 VSS 144 VSS 194 DQ63 145 VSS 195 SDA 146 /DQS5 196 VSS 147 DM5 197 SCL 148 DQS5 198 SA0 149 VSS 199 VDDSPD 150 VSS 200 SA1 Data Sheet E0553E21 (Ver. 2.1) 3 EBE25UD6ABSA Pin Description Pin name Function A0 to A12 Address input Row address Column address A10 (AP) Auto precharge BA0, BA1 Bank select address DQ0 to DQ63 Data input/output /RAS Row address strobe command A0 to A12 A0 to A9 /CAS Column address strobe command /WE Write enable /CS0 Chip select CKE0 Clock enable CK0, CK1 Clock input /CK0, /CK1 Differential clock input 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 Serial address input VDD Power for internal circuit VDDSPD Power for serial EEPROM VREF Input reference voltage VSS Ground ODT0 ODT control NC No connection Data Sheet E0553E21 (Ver. 2.1) 4 EBE25UD6ABSA Serial PD Matrix Byte No. 0 1 Function described Number of bytes utilized by module manufacturer Total number of bytes in serial PD device Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments 1 0 0 0 0 0 0 0 80H 128 bytes 0 0 0 0 1 0 0 0 08H 256 bytes 2 Memory type 0 0 0 0 1 0 0 0 08H DDR2 SDRAM 3 Number of row address 0 0 0 0 1 1 0 1 0DH 13 4 Number of column address 0 0 0 0 1 0 1 0 0AH 10 5 Number of DIMM ranks 0 1 1 0 0 0 0 0 60H 1 6 Module data width 0 1 0 0 0 0 0 0 40H 64 7 Module data width continuation 0 0 0 0 0 0 0 0 00H 0 8 Voltage interface level of this assembly 0 0 0 0 0 1 0 1 05H SSTL 1.8V 9 DDR SDRAM cycle time, CL = 5 -5C 0 0 1 1 1 1 0 1 3DH 3.75ns* 0 1 0 1 0 0 0 0 50H 5.0ns* 1 0 1 0 1 0 0 0 0 50H 0.5ns* 1 0 1 1 0 0 0 0 0 60H 0.6ns* 1 -4A 10 SDRAM access from clock (tAC) -5C -4A 11 DIMM configuration type 0 0 0 0 0 0 0 0 00H None. 12 Refresh rate/type 1 0 0 0 0 0 1 0 82H 7.8µs 13 Primary SDRAM width 0 0 0 1 0 0 0 0 10H × 16 14 Error checking SDRAM width 0 0 0 0 0 0 0 0 00H None. Reserved 0 0 0 0 0 0 0 0 00H 0 0 0 0 0 1 1 0 0 0CH 4,8 0 0 0 0 0 1 0 0 04H 4 0 0 1 1 1 0 0 0 38H 3, 4, 5 15 16 17 18 SDRAM device attributes: Burst length supported SDRAM device attributes: Number of banks on SDRAM device SDRAM device attributes: /CAS latency 1 19 Reserved 0 0 0 0 0 0 0 0 00H 0 20 DIMM type information 0 0 0 0 0 1 0 0 04H SO-DIMM 21 SDRAM module attributes 0 0 0 0 0 0 0 0 00H Normal 22 SDRAM device attributes: General 0 0 0 0 0 0 0 1 01H Weak driver 23 Minimum clock cycle time at CL = 4 -5C 0 0 1 1 1 1 0 1 3DH 3.75ns* 0 1 0 1 0 0 0 0 50H 5.0ns* 1 Maximum data access time (tAC) from clock at CL = 4 0 -5C 1 0 1 0 0 0 0 50H 0.5ns* 1 0 1 1 0 0 0 0 0 60H 0.6ns* 1 -4A 24 -4A 25 Minimum clock cycle time at CL = 3 0 1 0 1 0 0 0 0 50H 5.0ns* 1 26 Maximum data access time (tAC) from 0 clock at CL = 3 1 1 0 0 0 0 0 60H 0.6ns* 1 27 Minimum row precharge time (tRP) 0 0 1 1 1 1 0 0 3CH 15ns 28 Minimum row active to row active delay (tRRD) 0 0 1 0 1 0 0 0 28H 10ns 29 Minimum /RAS to /CAS delay (tRCD) 0 0 1 1 1 1 0 0 3CH 15ns 30 Minimum active to precharge time (tRAS) 0 0 1 0 1 0 0 0 28H 40ns Data Sheet E0553E21 (Ver. 2.1) 5 1 EBE25UD6ABSA Byte No. Function described Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments 31 Module rank density 0 1 0 0 0 0 0 0 40H 256M bytes 32 Address and command setup time before clock (tIS) -5C 0 0 1 0 0 1 0 1 25H 0.25ns* 1 0 0 1 1 0 1 0 1 35H 0.35ns* 1 Address and command hold time after clock (tIH) 0 -5C 0 1 1 1 0 0 0 38H 0.38ns* 1 0 1 0 0 1 0 0 0 48H 0.48ns* 1 0 0 0 1 0 0 0 0 10H 0.10ns* 1 0 0 0 1 0 1 0 1 15H 0.15ns* 1 0 0 1 0 0 0 1 1 23H 0.23ns* 1 0 0 1 0 1 0 0 0 28H 0.28ns* 1 -4A 33 -4A 34 Data input setup time before clock (tDS) -5C -4A 35 Data input hold time after clock (tDH) -5C -4A 1 36 Write recovery time (tWR) 0 0 1 1 1 1 0 0 3CH 15ns* 37 Internal write to read command delay (tWTR) -5C 0 0 0 1 1 1 1 0 1EH 7.5ns* 0 0 1 0 1 0 0 0 28H 10ns* 0 0 0 1 1 1 1 0 1EH 7.5ns* 39 Memory analysis probe characteristics 0 0 0 0 0 0 0 0 00H TBD 40 Extension of Byte 41 and 42 0 0 0 0 0 0 0 0 00H Undefined 41 Active command period (tRC) 0 0 1 1 0 1 1 1 37H 55ns* 42 Auto refresh to active/ Auto refresh command cycle (tRFC) 0 1 1 0 1 0 0 1 69H 105ns* 43 SDRAM tCK cycle max. (tCK max.) 1 0 0 0 0 0 0 0 80H 8ns* 44 Dout to DQS skew -5C 0 0 0 1 1 1 1 0 1EH 0.30ns* 1 0 0 1 0 0 0 1 1 23H 0.35ns* 1 0 0 1 0 1 0 0 0 28H 0.40ns* 1 0 0 1 0 1 1 0 1 2DH 0.45ns* 1 0 0 0 0 0 0 0 0 00H Undefined 0 0 0 0 0 0 0 0 00H -4A 38 Internal read to precharge command delay (tRTP) -4A 45 Data hold skew (tQHS) -5C -4A 46 PLL relock time 47 to 61 62 SPD Revision 0 0 0 1 0 0 0 0 10H 63 Checksum for bytes 0 to 62 -5C 0 1 1 1 1 0 1 1 7BH 1 1 1 1 1 1 1 1 FFH -4A 1 1 1 1 1 1 Rev. 1.0 64 to 65 Manufacturer’s JEDEC ID code 0 1 1 1 1 1 1 1 7FH Continuation code 66 Manufacturer’s JEDEC ID code 1 1 1 1 1 1 1 0 FEH Elpida Memory 67 to 71 Manufacturer’s JEDEC ID code 0 0 0 0 0 0 0 0 00H 72 Manufacturing location × × × × × × × × ×× Data Sheet E0553E21 (Ver. 2.1) 6 (ASCII-8bit code) EBE25UD6ABSA Byte No. Function described Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments 73 Module part number 0 1 0 0 0 1 0 1 45H E 74 Module part number 0 1 0 0 0 0 1 0 42H B 75 Module part number 0 1 0 0 0 1 0 1 45H E 76 Module part number 0 0 1 1 0 0 1 0 32H 2 77 Module part number 0 0 1 1 0 1 0 1 35H 5 78 Module part number 0 1 0 1 0 1 0 1 55H U 79 Module part number 0 1 0 0 0 1 0 0 44H D 80 Module part number 0 0 1 1 0 1 1 0 36H 6 81 Module part number 0 1 0 0 0 0 0 1 41H A 82 Module part number 0 1 0 0 0 0 1 0 42H B 83 Module part number 0 1 0 1 0 0 1 1 53H S 84 Module part number 0 1 0 0 0 0 0 1 41H A 85 Module part number 0 0 1 0 1 1 0 1 2DH — 86 Module part number -5C 0 0 1 1 0 1 0 1 35H 5 0 0 1 1 0 1 0 0 34H 4 0 1 0 0 0 0 0 1 41H A -4A 87 Module part number -4A 0 1 0 0 0 0 1 1 43H C 88 Module part number 0 0 1 0 1 1 0 1 2DH — 89 Module part number 0 1 0 0 0 1 0 1 45H E 90 Module part number 0 0 1 0 0 0 0 0 20H (Space) 91 Revision code 0 0 1 1 0 0 0 0 30H Initial 92 Revision code 0 0 1 0 0 0 0 0 20H (Space) 93 Manufacturing date × × × × × × × × ×× 94 Manufacturing date × × × × × × × × ×× 95 to 98 Module serial number 99 to 127 Manufacture specific data -5C Note: These specifications are defined based on component specification, not module. Data Sheet E0553E21 (Ver. 2.1) 7 Year code (BCD) Week code (BCD) EBE25UD6ABSA Block Diagram ODT0 CKE0 /CS0 RS2 RS2 RS2 /CS CKE ODT /LDQS RS1 /DQS0 RS1 DQS0 DM0 DQ0 to DQ7 DQS4 LDQS LDM 8 RS1 DM4 /UDQS RS1 DQ32 to DQ39 RS1 /DQS5 DQS5 DQ40 to DQ47 /CS CKE ODT /LDQS /DQS6 LDQS DQS6 I/O8 to I/O15 /CS CKE ODT /LDQS RS1 RS1 RS1 DQS2 RS1 I/O0 to I/O7 RS1 /UDQS RS1 DQ48 to DQ55 D1 /DQS7 UDQS DQS3 RS1 DQS7 8 RS1 I/O0 to I/O7 RS1 /UDQS RS1 D3 UDQS RS1 UDM DM3 LDM DM6 8 RS1 DQ16 to DQ23 LDQS RS1 LDM DM2 DM7 8 RS1 UDM 8 RS1 DQ24 to DQ31 /WE UDM 8 RS1 RS1 /CAS UDQS DM5 I/O8 to I/O15 /DQS2 /RAS D2 RS1 8 RS1 A0 to A12 /UDQS RS1 UDM DQ8 to DQ15 BA0 to BA1 I/O0 to I/O7 RS1 D0 UDQS DQS1 LDM 8 RS1 I/O0 to I/O7 RS1 /DQS3 LDQS RS1 RS1 /DQS1 DM1 /CS CKE ODT /LDQS RS1 /DQS4 RS1 I/O8 to I/O15 DQ56 to DQ63 I/O8 to I/O15 RS2 BA0 to BA1: SDRAMs (D0 to D3) Serial PD RS2 A0 to A12: SDRAMs (D0 to D3) RS2 SCL SCL SA0 A0 SA1 A1 SDA SDA /RAS: SDRAMs (D0 to D3) RS2 /CAS: SDRAMs (D0 to D3) RS2 /WE: SDRAMs (D0 to D3) A2 CK0 /CK0 2 loads CK1 /CK1 2 loads U0 WP Notes : 1. DQ wiring may be changed within a byte. VDDSPD VREF SPD 2. DQ, DQS, /DQS, ODT, DM, CKE, /CS relationships SDRAMs (D0 to D3) must be meintained as shown. VDD SDRAMs (D0 to D3) VDD and VDDQ VSS SDRAMs (D0 to D3) SPD * D0 to D3 : 512M bits DDR2 SDRAM U0 : 2k bits EEPROM Rs1 : 22Ω Rs2 : 3.0Ω Data Sheet E0553E21 (Ver. 2.1) 8 EBE25UD6ABSA Electrical Specifications • All voltages are referenced to VSS (GND). Absolute Maximum Ratings Parameter Symbol Value Unit Voltage on any pin relative to VSS VT –0.5 to +2.3 V Supply voltage relative to VSS VDD –0.5 to +2.3 V Short circuit output current IOS 50 mA Power dissipation PD 4 W Operating case temperature TC 0 to +85 °C Storage temperature Tstg –55 to +100 °C Note 1 Note: DDR2 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. DC Operating Conditions (TC = 0 to +85°C) (DDR2 SDRAM Component Specification) Parameter Symbol min. typ. max. Unit Notes Supply voltage VDD, VDDQ 1.7 1.8 1.9 V 4 VSS 0 0 0 V VDDSPD 1.7 — 3.6 V Input reference voltage VREF 0.49 × VDDQ 0.50 × VDDQ 0.51 × VDDQ V 1, 2 Termination voltage VTT VREF − 0.04 VREF VREF + 0.04 V 3 DC input logic high VIH (DC) VREF + 0.125 VDDQ + 0.3V V DC input low VIL (DC) −0.3 VREF – 0.125 V AC input logic high VIH (AC) VREF + 0.250 V AC input low VIL (AC) VREF − 0.250 V Notes: 1. The value of VREF may be selected by the user to provide optimum noise margin in the system. Typically the value of VREF is expected to be about 0.5 × VDDQ of the transmitting device and VREF are expected to track variations in VDDQ. 2. Peak to peak AC noise on VREF may not exceed ±2% VREF (DC). 3. VTT of transmitting device must track VREF of receiving device. 4. VDDQ must be equal to VDD. Data Sheet E0553E21 (Ver. 2.1) 9 EBE25UD6ABSA DC Characteristics 1 (TC = 0 to +85°C, VDD = 1.8V ± 0.1V) Parameter Symbol Grade max. Unit Operating current (ACT-PRE) IDD0 -5C -4A 620 560 mA Operating current (ACT-READ-PRE) IDD1 -5C -4A 680 620 mA Precharge power-down standby current IDD2P -5C -4A 40 32 mA Precharge quiet standby IDD2Q current -5C -4A 100 80 mA Idle standby current IDD2N -5C -4A 120 100 mA IDD3P-F -5C -4A 160 140 mA IDD3P-S -5C -4A 100 80 mA Active standby current IDD3N -5C -4A 340 300 mA Operating current (Burst read operating) IDD4R -5C -4A 960 800 mA Operating current (Burst write operating) IDD4W -5C -4A 960 800 mA Active power-down standby current Data Sheet E0553E21 (Ver. 2.1) 10 Test condition one bank; tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS min.(IDD); CKE is H, /CS is H between valid commands; Address bus inputs are SWITCHING; Data bus inputs are SWITCHING one bank; IOUT = 0mA; BL = 4, CL = CL(IDD), AL = 0; tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS min.(IDD); tRCD = tRCD (IDD); CKE is H, /CS is H between valid commands; Address bus inputs are SWITCHING; Data pattern is same as IDD4W all banks idle; tCK = tCK (IDD); CKE is L; Other control and address bus inputs are STABLE; Data bus inputs are FLOATING all banks idle; tCK = tCK (IDD); CKE is H, /CS is H; Other control and address bus inputs are STABLE; Data bus inputs are FLOATING all banks idle; tCK = tCK (IDD); CKE is H, /CS is H; Other control and address bus inputs are SWITCHING; Data bus inputs are SWITCHING all banks open; Fast PDN Exit tCK = tCK (IDD); MRS(12) = 0 CKE is L; Other control and address bus Slow PDN Exit inputs are STABLE; Data bus inputs are FLOATING MRS(12) = 1 all banks open; tCK = tCK (IDD), tRAS = tRAS max.(IDD), tRP = tRP (IDD); CKE is H, /CS is H between valid commands; Other control and address bus inputs are SWITCHING; Data bus inputs are SWITCHING all banks open, continuous burst reads, IOUT = 0mA; BL = 4, CL = CL(IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS max.(IDD), tRP = tRP (IDD); CKE is H, /CS is H between valid commands; Address bus inputs are SWITCHING; Data pattern is same as IDD4W all banks open, continuous burst writes; BL = 4, CL = CL(IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS max.(IDD), tRP = tRP (IDD); CKE is H, /CS is H between valid commands; Address bus inputs are SWITCHING; Data bus inputs are SWITCHING EBE25UD6ABSA Parameter Symbol Auto-refresh current IDD5 Self-refresh current IDD6 Operating current (Bank interleaving) IDD7 Grade -5C -4A -5C -4A max. Unit 1000 920 mA 24 mA 2000 1920 mA Test condition tCK = tCK (IDD); Refresh command at every tRFC (IDD) interval; CKE is H, /CS is H between valid commands; Other control and address bus inputs are SWITCHING; Data bus inputs are SWITCHING Self Refresh Mode; CK and /CK at 0V; CKE ≤ 0.2V; Other control and address bus inputs are FLOATING; Data bus inputs are FLOATING all bank interleaving reads, IOUT = 0mA; BL = 4, CL = CL(IDD), AL = tRCD (IDD) −1 × tCK (IDD); tCK = tCK (IDD), tRC = tRC (IDD), tRRD = tRRD(IDD), tRCD = 1 × tCK (IDD); CKE is H, CS is H between valid commands; Address bus inputs are STABLE during DESELECTs; Data pattern is same as IDD4W; Notes: 1. 2. 3. 4. IDD specifications are tested after the device is properly initialized. Input slew rate is specified by AC Input Test Condition. IDD parameters are specified with ODT disabled. Data bus consists of DQ, DM, DQS, /DQS, RDQS, /RDQS, LDQS, /LDQS, UDQS, and /UDQS. IDD values must be met with all combinations of EMRS bits 10 and 11. 5. Definitions for IDD L is defined as VIN ≤VIL (AC) (max.) H is defined as VIN ≥VIH (AC) (min.) STABLE is defined as inputs stable at an H or L level FLOATING is defined as inputs at VREF = VDDQ/2 SWITCHING is defined as: inputs changing between H and L every other clock cycle (once per two clocks) for address and control signals, and inputs changing between H and L every other data transfer (once per clock) for DQ signals not including masks or strobes. 6. Refer to AC Timing for IDD Test Conditions. AC Timing for IDD Test Conditions For purposes of IDD testing, the following parameters are to be utilized. DDR2-533 DDR2-400 Parameter 4-4-4 3-3-3 Unit CL(IDD) 4 3 tCK tRCD(IDD) 15 15 ns tRC(IDD) 55 55 ns tRRD(IDD) 10 10 ns tCK(IDD) 3.75 5 ns tRAS(min.)(IDD) 40 40 ns tRAS(max.)(IDD) 70000 70000 ns tRP(IDD) 15 15 ns tRFC(IDD) 105 105 ns Data Sheet E0553E21 (Ver. 2.1) 11 EBE25UD6ABSA DC Characteristics 2 (TC = 0 to +85°C, VDD, VDDQ = 1.8V ± 0.1V) (DDR2 SDRAM Component Specification) Parameter Symbol Value Input leakage current ILI 2 µA VDD ≥ VIN ≥ VSS Output leakage current ILO 5 µA VDDQ ≥ VOUT ≥ VSS VTT + 0.603 V 5 VTT − 0.603 V 5 Output timing measurement reference level VOTR 0.5 × VDDQ V 1 Output minimum sink DC current IOL +13.4 mA 3, 4, 5 Output minimum source DC current IOH −13.4 mA 2, 4, 5 Minimum required output pull-up under AC VOH test load Maximum required output pull-down under VOL AC test load Notes: 1. 2. 3. 4. 5. Unit Notes The VDDQ of the device under test is referenced. VDDQ = 1.7V; VOUT = 1.42V. VDDQ = 1.7V; VOUT = 0.28V. The DC value of VREF applied to the receiving device is expected to be set to VTT. After OCD calibration to 18Ω at TC = 25°C, VDD = VDDQ = 1.8V. DC Characteristics 3 (TC = 0 to +85°C, VDD, VDDQ = 1.8V ± 0.1V) (DDR2 SDRAM Component Specification) Parameter Symbol min. max. Unit Note AC differential input voltage VID (AC) 0.5 VDDQ + 0.6 V 1, 2 AC differential cross point voltage VIX (AC) 0.5 × VDDQ − 0.175 0.5 × VDDQ + 0.175 V 2 AC differential cross point voltage VOX (AC) 0.5 × VDDQ − 0.125 0.5 × VDDQ + 0.125 V 3 Notes: 1. VID(AC) specifies the input differential voltage |VTR -VCP| required for switching, where VTR is the true input signal (such as CK, DQS, LDQS or UDQS) and VCP is the complementary input signal (such as /CK, /DQS, /LDQS or /UDQS). The minimum value is equal to VIH(AC) − VIL(AC). 2. The typical value of VIX(AC) is expected to be about 0.5 × VDDQ of the transmitting device and VIX(AC) is expected to track variations in VDDQ . VIX(AC) indicates the voltage at which differential input signals must cross. 3. The typical value of VOX(AC) is expected to be about 0.5 × VDDQ of the transmitting device and VOX(AC) is expected to track variations in VDDQ . VOX(AC) indicates the voltage at which differential output signals must cross. VDDQ VTR Crossing point VID VIX or VOX VCP VSSQ Differential Signal Levels*1, 2 Data Sheet E0553E21 (Ver. 2.1) 12 EBE25UD6ABSA ODT DC Electrical Characteristics (TC = 0 to +85°C, VDD, VDDQ = 1.8V ± 0.1V) (DDR2 SDRAM Component Specification) Parameter Symbol min. typ. max Unit Notes Rtt effective impedance value for EMRS (A6, A2) = 0, 1; 75 Ω Rtt1(eff) 60 Rtt effective impedance value for EMRS (A6, A2) = 1, 0; 150 Ω Rtt2(eff) 120 75 90 Ω 1 150 180 Ω 1 Deviation of VM with respect to VDDQ/2 ∆VM −3.75 +3.75 % 1 Note: 1. Test condition for Rtt measurements. Measurement Definition for Rtt(eff) Apply VIH (AC) and VIL (AC) to test pin separately, then measure current I(VIH(AC)) and I(VIL(AC)) respectively. VIH(AC), and VDDQ values defined in SSTL_18. Rtt(eff) = VIH(AC) − VIL(AC) I(VIH(AC)) − I(VIL(AC)) Measurement Definition for VM Measure voltage (VM) at test pin (midpoint) with no load. ∆VM = 2 × VM VDDQ − 1 × 100% OCD Default Characteristics (TC = 0 to +85°C, VDD, VDDQ = 1.8V ± 0.1V) (DDR2 SDRAM Component Specification) Parameter min. typ. max. Unit Notes Output impedance 12.6 18 23.4 Ω 1 Pull-up and pull-down mismatch 0 4 Ω 1, 2 Output slew rate 1.5 4.5 V/ns 3, 4 Notes: 1. Impedance measurement condition for output source DC current: VDDQ = 1.7V; VOUT = 1420mV; (VOUT−VDDQ)/IOH must be less than 23.4Ω for values of VOUT between VDDQ and VDDQ−280mV. Impedance measurement condition for output sink DC current: VDDQ = 1.7V; VOUT = 280mV; VOUT/IOL must be less than 23.4Ω for values of VOUT between 0V and 280mV. 2. Mismatch is absolute value between pull up and pull down, both are measured at same temperature and voltage. 3. Slew rate measured from VIL(AC) to VIH(AC). 4. The absolute value of the slew rate as measured from DC to DC is equal to or greater than the slew rate as measured from AC to AC. This is guaranteed by design and characterization. Pin Capacitance (TA = 25°C, VDD = 1.8V ± 0.1V) (DDR2 SDRAM Component Specification) Parameter Symbol Pins min. max. Unit Input capacitance CI1 Address, /RAS, /CAS, /WE, /CS, CKE, ODT 1 2 pF Input capacitance CI2 CK, /CK 1 2 pF Data and DQS input/output capacitance CO DQ, DQS, /DQS, DM 3 4 pF Data Sheet E0553E21 (Ver. 2.1) 13 Note EBE25UD6ABSA AC Characteristics (TC = 0 to +85°C , VDD, VDDQ = 1.8V ± 0.1V, VSS = 0V) (DDR2 SDRAM Component Specification) Frequency (Mbps) Parameter Symbol -5C -4A 533 400 min. max. min. max. Unit /CAS latency CL 4 5 3 5 tCK Active to read or write command delay tRCD 15 15 ns Precharge command period tRP 15 15 ns Active to active/auto refresh command time tRC 55 55 ns DQ output access time from CK, /CK tAC −500 +500 −600 +600 ps Notes DQS output access time from CK, /CK tDQSCK −450 +450 −500 +500 ps CK high-level width tCH 0.45 0.55 0.45 0.55 tCK CK low-level width tCL 0.45 0.55 0.45 0.55 tCK CK half period tHP min. (tCL, tCH) min. (tCL, tCH) ps Clock cycle time tCK 3750 8000 5000 8000 ps DQ and DM input hold time tDH 225 275 ps 5 DQ and DM input setup time tDS 100 150 ps 4 tIPW 0.6 0.6 tCK tDIPW 0.35 0.35 tCK tHZ tAC max. tAC max. ps tLZ tAC min. tAC max. tAC min. tAC max. ps tDQSQ 300 350 ps DQ hold skew factor tQHS 400 450 ps DQ/DQS output hold time from DQS tQH tHP – tQHS tHP – tQHS ps Write command to first DQS latching transition tDQSS WL − 0.25 WL + 0.25 WL − 0.25 WL + 0.25 tCK DQS input high pulse width tDQSH 0.35 0.35 tCK DQS input low pulse width tDQSL 0.35 0.35 tCK DQS falling edge to CK setup time tDSS 0.2 0.2 tCK DQS falling edge hold time from CK tDSH 0.2 0.2 tCK Mode register set command cycle time tMRD 2 2 tCK Control and Address input pulse width for each input DQ and DM input pulse width for each input Data-out high-impedance time from CK,/CK Data-out low-impedance time from CK,/CK DQS-DQ skew for DQS and associated DQ signals Write preamble setup time tWPRES 0 0 tCK Write postamble tWPST 0.4 0.6 0.4 0.6 tCK Write preamble tWPRE 0.25 0.25 tCK Address and control input hold time tIH 375 475 ps 5 Address and control input setup time tIS 250 350 ps 4 Read preamble tRPRE 0.9 1.1 0.9 1.1 tCK Read postamble tRPST 0.4 0.6 0.4 0.6 tCK Active to precharge command tRAS 40 70000 40 70000 ns Active to auto-precharge delay tRAP tRCD min. tRCD min. ns Data Sheet E0553E21 (Ver. 2.1) 14 EBE25UD6ABSA Frequency (Mbps) -5C -4A 533 400 Parameter Symbol min. max. min. max. Unit Active bank A to active bank B command period tRRD 10 10 ns Write recovery time tWR 15 15 ns Auto precharge write recovery + precharge time tDAL (tWR/tCK)+ (tRP/tCK) (tWR/tCK)+ (tRP/tCK) tCK Internal write to read command delay tWTR 7.5 10 ns Internal read to precharge command delay tRTP 7.5 7.5 ns Exit self refresh to a non-read command tXSNR tRFC + 10 tRFC + 10 ns Exit self refresh to a read command tXSRD 200 200 tCK tXP 2 2 tCK tXARD 2 2 tCK 3 tXARDS 6 − AL 6 − AL tCK 2, 3 tCKE 3 3 tCK Output impedance test driver delay tOIT 0 12 0 12 ns Auto refresh to active/auto refresh command time tRFC 105 105 ns Average periodic refresh interval tREFI 7.8 7.8 µs Minimum time clocks remains ON after CKE asynchronously drops low tDELAY tIS + tCK + tIH Exit precharge power down to any nonread command Exit active power down to read command Exit active power down to read command (slow exit/low power mode) CKE minimum pulse width (high and low pulse width) tIS + tCK + tIH Notes 1 ns Notes: 1. 2. 3. 4. For each of the terms above, if not already an integer, round to the next higher integer. AL: Additive Latency. MRS A12 bit defines which active power down exit timing to be applied. The figures of Input Waveform Timing 1 and 2 are referenced from the input signal crossing at the VIH(AC) level for a rising signal and VIL(AC) for a falling signal applied to the device under test. 5. The figures of Input Waveform Timing 1 and 2 are referenced from the input signal crossing at the VIH(DC) level for a rising signal and VIL(DC) for a falling signal applied to the device under test. DQS CK /DQS /CK tDS tDH tDS tIS tDH tIH tIS tIH VDDQ VIH (AC)(min.) VIH (DC)(min.) VREF VIL (DC)(max.) VIL (AC)(max.) VSS VDDQ VIH (AC)(min.) VIH (DC)(min.) VREF VIL (DC)(max.) VIL (AC)(max.) VSS Input Waveform Timing 1 (tDS, tDH) Input Waveform Timing 2 (tIS, tIH) Data Sheet E0553E21 (Ver. 2.1) 15 EBE25UD6ABSA ODT AC Electrical Characteristics (DDR2 SDRAM Component Specification) Parameter Symbol min. max. Unit ODT turn-on delay tAOND 2 2 tCK ODT turn-on tAON tAC(min) tAC(max) + 1000 ps ODT turn-on (power down mode) tAONPD tAC(min) + 2000 2tCK + tAC(max) + 1000 ps ODT turn-off delay tAOFD 2.5 2.5 tCK ODT turn-off tAOF tAC(min) tAC(max) + 600 ps ODT turn-off (power down mode) tAOFPD tAC(min) + 2000 2.5tCK + tAC(max) + 1000 ps ODT to power down entry latency tANPD 3 3 tCK ODT power down exit latency tAXPD 8 8 tCK Notes 1 2 Notes: 1. ODT turn on time min is when the device leaves high impedance and ODT resistance begins to turn on. ODT turn on time max is when the ODT resistance is fully on. Both are measured from tAOND. 2. ODT turn off time min is when the device starts to turn off ODT resistance. ODT turn off time max is when the bus is in high impedance. Both are measured from tAOFD. AC Input Test Conditions Parameter Symbol Value Unit Notes Input reference voltage VREF 0.5 × VDDQ V 1 Input signal maximum peak to peak swing VSWING(max.) 1.0 V 1 Input signal maximum slew rate SLEW 1.0 V/ns 2, 3 Notes: 1. Input waveform timing is referenced to the input signal crossing through the VREF level applied to the device under test. 2. The input signal minimum slew rate is to be maintained over the range from VIL(DC) (max.) to VIH(AC) (min.) for rising edges and the range from VIH(DC) (min.) to VIL(AC) (max.) for falling edges as shown in the below figure. 3. AC timings are referenced with input waveforms switching from VIL(AC) to VIH(AC) on the positive transitions and VIH(AC) to VIL(AC) on the negative transitions. Start of rising edge input timing Start of falling edge input timing VDDQ VIH (AC)(min.) VIH (DC)(min.) VSWING(max.) VREF VIL (DC)(max.) VIL (AC)(max.) Falling slew = VSS ∆TR ∆TF VIH (DC)(min.) − VIL (AC)(max.) Rising slew = ∆TF VIH (AC) min. − VIL (DC)(max.) AC Input Test Signal Wave forms Measurement point DQ VTT RT =25 Ω Output Load Data Sheet E0553E21 (Ver. 2.1) 16 ∆TR EBE25UD6ABSA Pin Functions CK, /CK (input pin) The CK and the /CK are the master clock inputs. All inputs except DMs, DQSs and DQs are referred to the cross point of the CK rising edge and the VREF level. When a read operation, DQSs and DQs are referred to the cross point of the CK and the /CK. When a write operation, DMs and DQs are referred to the cross point of the DQS and the VREF level. DQSs for write operation are referred to the cross point of the CK and the /CK. /CS (input pin) When /CS is low, commands and data can be input. When /CS is high, all inputs are ignored. However, internal operations (bank active, burst operations, etc.) are held. /RAS, /CAS, and /WE (input pins) These pins define operating commands (read, write, etc.) depending on the combinations of their voltage levels. See "Command operation". A0 to A12 (input pins) Row address (AX0 to AX12) is determined by the A0 to the A12 level at the cross point of the CK rising edge and the VREF level in a bank active command cycle. Column address (AY0 to AY9) is loaded via the A0 to the A9 at the cross point of the CK rising edge and the VREF level in a read or a write command cycle. This column address becomes the starting address of a burst operation. A10 (AP) (input pin) A10 defines the precharge mode when a precharge command, a read command or a write command is issued. If A10 = high when a precharge command is issued, all banks are precharged. If A10 = low when a precharge command is issued, only the bank that is selected by BA1, BA0 is precharged. If A10 = high when read or write command, auto-precharge function is enabled. While A10 = low, auto-precharge function is disabled. BA0 and BA1 (input pins) BA0, BA1 are bank select signals (BA). The memory array is divided into bank 0, bank 1, bank 2 and bank 3. (See Bank Select Signal Table) [Bank Select Signal Table] BA0 BA1 Bank 0 L L Bank 1 H L Bank 2 L H Bank 3 H H Remark: H: VIH. L: VIL. CKE (input pin) CKE controls power down and self-refresh. The power down and the self-refresh commands are entered when the CKE is driven low and exited when it resumes to high. The CKE level must be kept for 1 CK cycle at least, that is, if CKE changes at the cross point of the CK rising edge and the VREF level with proper setup time tIS, at the next CK rising edge CKE level must be kept with proper hold time tIH. DQ (input and output pins) Data are input to and output from these pins. DQS and /DQS (input and output pin) DQS and /DQS provide the read data strobes (as output) and the write data strobes (as input). Data Sheet E0553E21 (Ver. 2.1) 17 EBE25UD6ABSA 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) 1.8V is applied. (VDD is for the internal circuit.) VDDSPD (power supply pin) 1.8V is applied (For serial EEPROM). VSS (power supply pin) Ground is connected. Detailed Operation Part and Timing Waveforms Refer to the EDE5104ABSE, EDE5108ABSE, EDE5116ABSE datasheet (E0323E). Data Sheet E0553E21 (Ver. 2.1) 18 EBE25UD6ABSA Physical Outline Unit: mm Front side 11.55 2.00 Min 17.55 3.80 Max (DATUM -A-) 4x Full R 1 199 6.00 4.00 Min Component area (Front) A B 11.40 2.15 2.45 47.40 D 1.00 ± 0.10 67.60 Back side 63.60 2.45 2.15 30.00 Component area (Back) 20.00 4.00 2 200 C (DATUM -A-) Detail A Detail B 0.45 ± 0.03 Detail C FULL R 2.70 4.20 4.00 ± 0.10 0.51 Max 2.55 Min 0.60 1.00 ± 0.10 Detail D Contact pad 0.25 Max 0.51 Max 4.20 2.40 ECA-TS2-0106-01 Data Sheet E0553E21 (Ver. 2.1) 19 EBE25UD6ABSA 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 E0553E21 (Ver. 2.1) 20 EBE25UD6ABSA 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] Elpida Memory, Inc. makes every attempt to ensure that its products are of high quality and reliability. However, users are instructed to contact Elpida Memory's sales office before using 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. [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] This product is not designed to be resistant to electromagnetic waves or radiation. This product must be used in a non-condensing environment. 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. M01E0107 Data Sheet E0553E21 (Ver. 2.1) 21