2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM Features DDR2 SDRAM RDIMM MT36HTF25672PZ – 2GB MT36HTF51272PZ – 4GB MT36HTF1G72PZ – 8GB Features Figure 1: 240-Pin RDIMM (MO-256 R/C L) • 240-pin, registered dual in-line memory module • Fast data transfer rates: PC2-3200, PC2-4200, PC2-5300, or PC2-6400 • 2GB (256 Meg x 72), 4GB (512 Meg x 72), 8GB (1 Gig x 72) • Supports ECC error detection and correction • VDD = V DDQ = +1.8V • VDDSPD = 1.7–3.6V • JEDEC-standard 1.8V I/O (SSTL_18-compatible) • Differential data strobe (DQS, DQS#) option • 4n-bit prefetch architecture • Dual rank • Multiple internal device banks for concurrent operation • Programmable CAS# latency (CL) • Posted CAS# additive latency (AL) • WRITE latency = READ latency - 1 tCK • Programmable burst lengths (BL): 4 or 8 • Adjustable data-output drive strength • 64ms, 8192-cycle refresh • On-die termination (ODT) • Serial presence-detect (SPD) with EEPROM • Gold edge contacts • Halogen-free Module height: 30.0mm (1.181in) Options Marking • Parity • Operating temperature – Commercial (0°C ≤ T C ≤ +70°C) – Industrial (–40°C ≤ T C ≤ +85°C)1 • Package – 240-pin DIMM (halogen-free) • Frequency/CL2 – 2.5ns @ CL = 5 (DDR2-800) – 2.5ns @ CL = 6 (DDR2-800) – 3.0ns @ CL = 5 (DDR2-667) Notes: P None I Z -80E -800 -667 1. Contact Micron for industrial temperature module offerings. 2. CL = CAS (READ) latency; registered mode will add one clock cycle to CL. Table 1: Key Timing Parameters Data Rate (MT/s) tRCD tRP tRC (ns) (ns) (ns) 12.5 12.5 55 15 15 55 400 15 15 55 553 400 15 15 55 400 400 15 15 55 Speed Grade Industry Nomenclature CL = 6 CL = 5 CL = 4 CL = 3 -80E PC2-6400 800 800 533 400 -800 PC2-6400 800 667 533 400 -667 PC2-5300 – 667 553 -53E PC2-4200 – – -40E PC2-3200 – – PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 1 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. Products and specifications discussed herein are subject to change by Micron without notice. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM Features Table 2: Addressing Parameter Refresh count Row address 2GB 4GB 8GB 8K 8K 8K 16K A[13:0] 16K A[13:0] 32K A[14:0] Device bank address 4 BA[1:0] 8 BA[2:0] 8 BA[2:0] Device configuration 512Mb (128 Meg x4) 1Gb (256 Meg x 4) 2Gb (512 Meg x 4) 2K A[11, 9:0] 2K A[11, 9:0] 2K A[11, 9:0] 2 S#[1:0] 2 S#[1:0] 2 S#[1:0] Column address Module rank address Table 3: Part Numbers and Timing Parameters – 2GB Base device: MT47H128M4,1 512Mb DDR2 SDRAM Module Part Number2 Density Configuration Module Bandwidth Memory Clock/ Data Rate Clock Cycles (CL-tRCD-tRP) MT36HTF25672P(I)Z-80E__ 2GB 512 Meg x 72 6.4 GB/s 2.5ns/800 MT/s 5-5-5 MT36HTF25672P(I)Z-800__ 2GB 512 Meg x 72 6.4 GB/s 2.5ns/800 MT/s 6-6-6 MT36HTF25672P(I)Z-667__ 2GB 512 Meg x 72 5.3 GB/s 3.0ns/800 MT/s 5-5-5 Module Bandwidth Memory Clock/ Data Rate Clock Cycles (CL-tRCD-tRP) Table 4: Part Numbers and Timing Parameters – 4GB Base device: MT47H256M4,1 1Gb DDR2 SDRAM Module Part Number2 Density Configuration MT36HTF51272P(I)Z-80E__ 4GB 512 Meg x 72 6.4 GB/s 2.5ns/800 MT/s 5-5-5 MT36HTF51272P(I)Z-800__ 4GB 512 Meg x 72 6.4 GB/s 2.5ns/800 MT/s 6-6-6 MT36HTF51272P(I)Z-667__ 4GB 512 Meg x 72 5.3 GB/s 3.0ns/800 MT/s 5-5-5 Module Bandwidth Memory Clock/ Data Rate Clock Cycles (CL-tRCD-tRP) Table 5: Part Numbers and Timing Parameters – 8GB Base device: MT47H512M4,1 2Gb DDR2 SDRAM Module Part Number2 Density Configuration MT36HTF1G72P(I)Z-80E__ 8GB 1 Gig x 72 6.4 GB/s 2.5ns/800 MT/s 5-5-5 MT36HTF1G72P(I)Z-800__ 8GB 1 Gig x 72 6.4 GB/s 2.5ns/800 MT/s 6-6-6 MT36HTF1G72P(I)Z-667__ 8GB 1 Gig x 72 5.3 GB/s 3.0ns/800 MT/s 5-5-5 Notes: 1. Data sheets for the base device can be found on Micron’s Web site. 2. All part numbers end with a two-place code (not shown) that designates component and PCB revisions. Consult factory for current revision codes. Example: MT36HTF51272PZ-80EM1. PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 2 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM Pin Assignments Pin Assignments Table 6: Pin Assignments 240-Pin RDIMM Front Pin Symbol Pin 1 VREF 31 Symbol DQ19 240-Pin RDIMM Back Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol 61 A4 91 VSS 121 VSS 151 VSS 181 VDDQ 211 DQS14 2 VSS 32 VSS 62 VDDQ 92 DQS5# 122 DQ4 152 DQ28 182 A3 212 DQS14# 3 DQ0 33 DQ24 63 A2 93 DQS5 123 DQ5 153 DQ29 183 A1 213 VSS 4 DQ1 34 DQ25 64 VDD 94 VSS 124 VSS 154 VSS 184 VDD 214 DQ46 5 VSS 35 VSS 65 VSS 95 DQ42 125 DQS9 155 DQS12 185 CK0 215 DQ47 6 DQS0# 36 DQS3# 66 VSS 96 DQ43 126 DQS9# 156 DQS12# 186 CK0# 216 VSS 7 DQS0 37 DQS3 67 VDD 97 VSS 127 VSS 157 VSS 187 VDD 217 DQ52 8 VSS 38 VSS 68 Par_In 98 DQ48 128 DQ6 158 DQ30 188 A0 218 DQ53 9 DQ2 39 DQ26 69 VDD 99 DQ49 129 DQ7 159 DQ31 189 VDD 219 VSS 10 DQ3 40 DQ27 70 A10/AP 100 VSS 130 VSS 160 VSS 190 BA1 220 NC 11 VSS 41 VSS 71 BA0 101 SA2 131 DQ12 161 CB4 191 VDDQ 221 NC 12 DQ8 42 CB0 72 VDDQ 102 NC 132 DQ13 162 CB5 192 RAS# 222 VSS 13 DQ9 43 CB1 73 WE# 103 VSS 133 VSS 163 VSS 193 S0# 223 DQS15 14 VSS 44 VSS 74 CAS# 104 DQS6# 134 DQS10 164 DQS17 194 VDDQ 224 DQS15# 15 DQS1# 45 DQS8# 75 VDDQ 105 135 DQS10# 165 DQS17# 195 ODT0 225 VSS 16 DQS1 46 DQS8 76 S1# 106 VSS 136 VSS 166 VSS 196 A13 226 DQ54 17 VSS 47 VSS 77 ODT1 107 DQ50 137 NC 167 CB6 197 VDD 227 DQ55 18 RESET# 48 CB2 78 VDDQ 108 DQ51 138 NC 168 CB7 198 VSS 228 VSS DQS6 19 NC 49 CB3 79 VSS 109 VSS 139 VSS 169 VSS 199 DQ36 229 DQ60 20 VSS 50 VSS 80 DQ32 110 DQ56 140 DQ14 170 VDDQ 200 DQ37 230 DQ61 21 DQ10 51 VDDQ 81 DQ33 111 DQ57 141 DQ15 171 CKE1 201 VSS 231 VSS 22 DQ11 52 CKE0 82 VSS 112 VSS 142 VSS 172 VDD 202 DQS13 232 DQS16 23 VSS 53 VDD 83 DQS4# 113 DQS7# 143 DQ20 173 A15 203 DQS13# 233 DQS16# 24 DQ16 54 BA2 84 DQS4 114 DQS7 144 DQ21 174 A14 204 VSS 234 VSS 25 DQ17 55 Err_Out# 85 VSS 115 VSS 145 VSS 175 VDDQ 205 DQ38 235 DQ62 26 VSS 56 VDDQ 86 DQ34 116 DQ58 146 DQS11 176 A12 206 DQ39 236 DQ63 27 DQS2# 57 A11 87 DQ35 117 DQ59 147 DQS11# 177 A9 207 VSS 237 VSS 28 DQS2 58 A7 88 VSS 118 VSS 148 VSS 178 VDD 208 DQ44 238 VDDSPD 29 VSS 59 VDD 89 DQ40 119 SDA 149 DQ22 179 A8 209 DQ45 239 SA0 30 DQ18 60 A5 90 DQ41 120 SCL 150 DQ23 180 A6 210 VSS 240 SA1 PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 3 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM Pin Descriptions Pin Descriptions The pin description table below is a comprehensive list of all possible pins for all DDR2 modules. All pins listed may not be supported on this module. See Pin Assignments for information specific to this module. Table 7: Pin Descriptions Symbol Type Description Ax Input Address inputs: Provide the row address for ACTIVE commands, and the column address and auto precharge bit (A10) for READ/WRITE commands, to select one location out of the memory array in the respective bank. A10 sampled during a PRECHARGE command determines whether the PRECHARGE applies to one bank (A10 LOW, bank selected by BAx) or all banks (A10 HIGH). The address inputs also provide the op-code during a LOAD MODE command. See the Pin Assignments Table for density-specific addressing information. BAx Input Bank address inputs: Define the device bank to which an ACTIVE, READ, WRITE, or PRECHARGE command is being applied. BA define which mode register (MR0, MR1, MR2, and MR3) is loaded during the LOAD MODE command. CKx, CK#x Input Clock: Differential clock inputs. All control, command, and address input signals are sampled on the crossing of the positive edge of CK and the negative edge of CK#. CKEx Input Clock enable: Enables (registered HIGH) and disables (registered LOW) internal circuitry and clocks on the DDR2 SDRAM. DMx Input Data mask (x8 devices only): DM is an input mask signal for write data. Input data is masked when DM is sampled HIGH, along with that input data, during a write access. Although DM pins are input-only, DM loading is designed to match that of the DQ and DQS pins. ODTx Input On-die termination: Enables (registered HIGH) and disables (registered LOW) termination resistance internal to the DDR2 SDRAM. When enabled in normal operation, ODT is only applied to the following pins: DQ, DQS, DQS#, DM, and CB. The ODT input will be ignored if disabled via the LOAD MODE command. Par_In Input Parity input: Parity bit for Ax, RAS#, CAS#, and WE#. RAS#, CAS#, WE# Input Command inputs: RAS#, CAS#, and WE# (along with S#) define the command being entered. RESET# Input Reset: Asynchronously forces all registered outputs LOW when RESET# is LOW. This signal can be used during power-up to ensure that CKE is LOW and DQ are High-Z. S#x Input Chip select: Enables (registered LOW) and disables (registered HIGH) the command decoder. SAx Input Serial address inputs: Used to configure the SPD EEPROM address range on the I2C bus. SCL Input Serial clock for SPD EEPROM: Used to synchronize communication to and from the SPD EEPROM on the I2C bus. CBx I/O Check bits. Used for system error detection and correction. DQx I/O Data input/output: Bidirectional data bus. DQSx, DQS#x I/O Data strobe: Travels with the DQ and is used to capture DQ at the DRAM or the controller. Output with read data; input with write data for source synchronous operation. DQS# is only used when differential data strobe mode is enabled via the LOAD MODE command. PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 4 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM Pin Descriptions Table 7: Pin Descriptions (Continued) Symbol Type SDA I/O Serial data: Used to transfer addresses and data into and out of the SPD EEPROM on the I2C bus. RDQSx, RDQS#x Output Redundant data strobe (x8 devices only): RDQS is enabled/disabled via the LOAD MODE command to the extended mode register (EMR). When RDQS is enabled, RDQS is output with read data only and is ignored during write data. When RDQS is disabled, RDQS becomes data mask (see DMx). RDQS# is only used when RDQS is enabled and differential data strobe mode is enabled. Err_Out# Description Output Parity error output: Parity error found on the command and address bus. (open drain) VDD/VDDQ Supply Power supply: 1.8V ±0.1V. The component VDD and VDDQ are connected to the module VDD. VDDSPD Supply SPD EEPROM power supply: 1.7–3.6V. VREF Supply Reference voltage: VDD/2. VSS Supply Ground. NC – No connect: These pins are not connected on the module. NF – No function: These pins are connected within the module, but provide no functionality. NU – Not used: These pins are not used in specific module configurations/operations. RFU – Reserved for future use. PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 5 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM Functional Block Diagram Functional Block Diagram Figure 2: Functional Block Diagram VSS RS0# RS1# U6, U26 DQS0 DQS0# DQ0 DQ1 DQ2 DQ3 DQS1 DQS1# DQ8 DQ9 DQ10 DQ11 DQS2 DQS2# DQ16 DQ17 DQ18 DQ19 DQS3 DQS3# DQ24 DQ25 DQ26 DQ27 DQS8 DQS8# CB0 CB1 CB2 CB3 DQS4 DQS4# DQ32 DQ33 DQ34 DQ35 DQS5 DQS5# DQ40 DQ41 DQ42 DQ43 DQS6 DQS6# DQ48 DQ49 DQ50 DQ51 DQS7 DQS7# DQ56 DQ57 DQ58 DQ59 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ U12 U40 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ U13 U39 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ U14 U38 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ U15 U37 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ U16 U36 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ U8 U25 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ U9 U24 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ U10 U23 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ U11 PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN U22 DQS9 DQS9# DQ4 DQ5 DQ6 DQ7 DQS10 DQS10# DQ12 DQ13 DQ14 DQ15 DQS11 DQS11# DQ20 DQ21 DQ22 DQ23 DQS12 DQS12# DQ28 DQ29 DQ30 DQ31 DQS17 DQS17# CB4 CB5 CB6 CB7 DQS13 DQS13# DQ36 DQ37 DQ38 DQ39 DQS14 DQS14# DQ44 DQ45 DQ46 DQ47 DQS15 DQS15# DQ52 DQ53 DQ54 DQ55 DQS16 DQS16# DQ60 DQ61 DQ62 DQ63 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ U1 U31 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ U2 U30 DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ DM CS# DQS DQS# DQ DQ DQ DQ DM CS# DQS DQS# DQ DQ DQ DQ DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ U34 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ A1 A2 SDA RESET# VDDSPD DDR2 SDRAM x 4 DDR2 SDRAM x 4 DDR2 SDRAM x 4 DDR2 SDRAM x 4 DDR2 SDRAM x 4 DDR2 SDRAM x 4 DDR2 SDRAM x 4 DDR2 SDRAM x 4 DDR2 SDRAM x 4 Register x 2 SPD EEPROM VDD/VDDQ DDR2 SDRAM VREF DDR2 SDRAM VSS DDR2 SDRAM U33 DM CS# DQS DQS# DM CS# DQS DQS# DQ DQ DQ DQ DQ DQ DQ DQ 6 WP A0 PLL U35 DM CS# DQS DQS# U21 SPD EEPROM U7 CK0 CK0# DQ DQ DQ DQ U20 SCL U27 DM CS# DQS DQS# U19 RODT0: Rank 0 RODT1: Rank 1 ERR_OUT# VSS SA0 SA1 SA2 DQ DQ DQ DQ U18 RCAS#: DDR2 SDRAM RWE#: DDR2 SDRAM RCKE0: Rank 0 RCKE1: Rank 1 U17 U28 DM CS# DQS DQS# U5 RBA[2/1:0]: DDR2 SDRAM RA[14/13:0]: DDR2 SDRAM RRAS#: DDR2 SDRAM Rank 0 = U1–U5, U8–U16, U18–U21 Rank 1 = U22–U25, U27–U40 U29 DM CS# DQS DQS# U4 RS0#: Rank 0 RS1#: Rank 1 R e g i s t e r s RESET# DM CS# DQS DQS# U3 S0# S1# BA[2:0] A[15:0] RAS# CAS# WE# CKE0 CKE1 ODT0 ODT1 PAR_IN U32 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM General Description General Description DDR2 SDRAM modules are high-speed, CMOS dynamic random access memory modules that use internally configured 4 or 8-bank DDR2 SDRAM devices. DDR2 SDRAM modules use DDR architecture to achieve high-speed operation. DDR2 architecture is essentially a 4n-prefetch architecture with an interface designed to transfer two data words per clock cycle at the I/O pins. A single read or write access for the DDR2 SDRAM module effectively consists of a single 4n-bit-wide, one-clock-cycle data transfer at the internal DRAM core and eight corresponding n-bit-wide, one-half-clock-cycle data transfers at the I/O pins. DDR2 modules use two sets of differential signals: DQS, DQS# to capture data and CK and CK# to capture commands, addresses, and control signals. Differential clocks and data strobes ensure exceptional noise immunity for these signals and provide precise crossing points to capture input signals. A bidirectional data strobe (DQS, DQS#) is transmitted externally, along with data, for use in data capture at the receiver. DQS is a strobe transmitted by the DDR2 SDRAM device during READs and by the memory controller during WRITEs. DQS is edge-aligned with data for READs and center-aligned with data for WRITEs. DDR2 SDRAM modules operate from a differential clock (CK and CK#); the crossing of CK going HIGH and CK# going LOW will be referred to as the positive edge of CK. Commands (address and control signals) are registered at every positive edge of CK. Input data is registered on both edges of DQS, and output data is referenced to both edges of DQS, as well as to both edges of CK. Serial Presence-Detect EEPROM Operation DDR2 SDRAM modules incorporate serial presence-detect. The SPD data is stored in a 256-byte EEPROM. The first 128 bytes are programmed by Micron to identify the module type and various SDRAM organizations and timing parameters. The remaining 128 bytes of storage are available for use by the customer. System READ/WRITE operations between the master (system logic) and the slave EEPROM device occur via a standard I2C bus using the DIMM’s SCL (clock) SDA (data), and SA (address) pins. Write protect (WP) is connected to V SS, permanently disabling hardware write protection. Register and PLL Operation DDR2 SDRAM modules operate in registered mode, where the command/address input signals are latched in the registers on the rising clock edge and sent to the DDR2 SDRAM devices on the following rising clock edge (data access is delayed by one clock cycle). A phase-lock loop (PLL) on the module receives and redrives the differential clock signals (CK, CK#) to the DDR2 SDRAM devices. The registers and PLL minimize system and clock loading. PLL clock timing is defined by JEDEC specifications and ensured by use of the JEDEC clock reference board. Registered mode will add one clock cycle to CL. Parity Operations The registering clock driver can accept a parity bit from the system’s memory controller, providing even parity for the control, command, and address bus. Parity errors are flagged on the Err_Out# pin. Systems not using parity are expected to function without issue if Par_In and Err_Out# are left as no connects (NC) to the system. PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 7 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM Electrical Specifications Electrical Specifications Stresses greater than those listed may cause permanent damage to the module. This is a stress rating only, and functional operation of the module at these or any other conditions outside those indicated in each device's data sheet is not implied. Exposure to absolute maximum rating conditions for extended periods may adversely affect reliability. Table 8: Absolute Maximum Ratings Symbol Parameter Min Max Units VDD/VDDQ VDD/VDDQ supply voltage relative to VSS –0.5 2.3 V VIN, VOUT Voltage on any pin relative to VSS –0.5 2.3 V Input leakage current; Any input 0V ≤ VIN ≤ Command/Address RAS#, VDD;VREF input 0V ≤ VIN ≤ 0.95V; (All other CAS#, WE# S#, CKE, ODT, BA pins notunder test = 0V) CK, CK# –10 10 µA II IOZ IVREF 1 –250 250 Output leakage current; 0V ≤ VOUT ≤ VDDQ; DQ, DQS, DQS# DQs and ODT are disabled –10 10 µA VREF leakage current; VREF = Valid VREF level –72 72 µA 0 85 °C –40 95 0 70 –40 85 TC DDR2 SDRAM device operating case temperature2 Commercial TA Module ambient operating temperature Commercial Industrial Industrial Notes: PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN °C 1. The refresh rate is required to double when TC exceeds 85°C. 2. For further information, refer to technical note TN-00-08: "Thermal Applications," available on Micron’s Web site. 8 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM DRAM Operating Conditions DRAM Operating Conditions Recommended AC operating conditions are given in the DDR2 component data sheets. Component specifications are available on Micron's Web site. Module speed grades correlate with component speed grades. Table 9: Module and Component Speed Grades DDR2 components may exceed the listed module speed grades; module may not be available in all listed speed grades Module Speed Grade Component Speed Grade -1GA -187E -80E -25E -800 -25 -667 -3 -53E -37E -40E -5E Design Considerations Simulations Micron memory modules are designed to optimize signal integrity through carefully designed terminations, controlled board impedances, routing topologies, trace length matching, and decoupling. However, good signal integrity starts at the system level. Micron encourages designers to simulate the signal characteristics of the system's memory bus to ensure adequate signal integrity of the entire memory system. Power Operating voltages are specified at the DRAM, not at the edge connector of the module. Designers must account for any system voltage drops at anticipated power levels to ensure the required supply voltage is maintained. PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 9 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM IDD Specifications IDD Specifications Table 10: DDR2 IDD Specifications and Conditions – 2GB (Die Revision G) Values shown for MT47H1286M4 DDR2 SDRAM only and are computed from values specified in the 512Mb (128 Meg x 4) component data sheet -80E/ Parameter Symbol -800 -667 Units Operating one bank active-precharge current:tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS MIN (I ); CKE is HIGH, S# is HIGH between valid commands; Address DD bus inputs are switching; Data bus inputs are switching IDD01 1296 1206 mA Operating one bank active-read-precharge current: IOUT = 0mA; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS MIN (IDD), tRCD = tRCD (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data pattern is same as IDD4W IDD11 1476 1386 mA Precharge power-down current: All device banks idle; tCK = tCK (IDD); CKE is LOW; Other control and address bus inputs are stable; Data bus inputs are floating IDD2P2 252 252 mA Precharge quiet standby current: All device banks idle; tCK = tCK (IDD); CKE is HIGH, S# is HIGH; Other control and address bus inputs are stable; Data bus inputs are floating IDD2Q2 864 792 mA Precharge standby current: All device banks idle; tCK = tCK (IDD); CKE is HIGH, S# is HIGH; Other control and address bus inputs are switching; Data bus inputs are switching IDD2N2 1008 900 mA Active power-down current: All device banks open; tCK = tCK Fast PDN exit (IDD); CKE is LOW; Other control and address bus inputs are stable; MR[12] = 0 Data bus inputs are floating Slow PDN exit MR[12] = 1 IDD3P2 648 540 mA 324 324 Active standby current: All device banks open; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Other control and address bus inputs are switching; Data bus inputs are switching IDD3N2 1188 1080 mA Operating burst write current: All device banks open; Continuous burst writes; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data bus inputs are switching IDD4W1 2376 2196 mA Operating burst read current: All device banks open; Continuous burst read, IOUT = 0mA; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data bus inputs are switching IDD4R1 2286 2106 mA Burst refresh current:tCK = tCK (IDD); REFRESH command at every tRFC (IDD) interval; CKE is HIGH, S# is HIGH between valid commands; Other control and address bus inputs are switching; Data bus inputs are switching IDD52 1836 1746 mA Self refresh current: CK and CK# at 0V; CKE ≤ 0.2V; Other control and address bus inputs are floating; Data bus inputs are floating IDD62 252 252 mA PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 10 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM IDD Specifications Table 10: DDR2 IDD Specifications and Conditions – 2GB (Die Revision G) (Continued) Values shown for MT47H1286M4 DDR2 SDRAM only and are computed from values specified in the 512Mb (128 Meg x 4) component data sheet -80E/ Parameter Symbol -800 -667 Units IDD71 Operating bank interleave read current: All device banks interleaving reads, IOUT = 0mA; BL = 4, CL = CL (IDD), AL = tRCD (IDD) - 1 × tCK (IDD); tCK = tCK (IDD), tRC = tRC (I ), tRRD = tRRD (I ), tRCD = tRCD (I ); CKE is HIGH, S# is HIGH between valid DD DD DD commands; Address bus inputs are stable during deselects; Data bus inputs are switching Notes: 2826 2646 mA 1. Value calculated as one module rank in this operating condition. All other module ranks in IDD2P (CKE LOW) mode. 2. Value calculated reflects all module ranks in this operating condition. Table 11: DDR2 IDD Specifications and Conditions – 4GB (Die Revision H) Values shown for MT47H256M4 DDR2 SDRAM only and are computed from values specified in the 2Gb (256 Meg x 4) component data sheet -80E/ Parameter Symbol -800 -667 Units Operating one bank active-precharge current:tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS MIN (I ); CKE is HIGH, S# is HIGH between valid commands; Address DD bus inputs are switching; Data bus inputs are switching IDD01 1296 1206 mA Operating one bank active-read-precharge current: IOUT = 0mA; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS MIN (IDD), tRCD = tRCD (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data pattern is same as IDD4W IDD11 1476 1386 mA Precharge power-down current: All device banks idle; tCK = tCK (IDD); CKE is LOW; Other control and address bus inputs are stable; Data bus inputs are floating IDD2P2 252 252 mA Precharge quiet standby current: All device banks idle; tCK = tCK (IDD); CKE is HIGH, S# is HIGH; Other control and address bus inputs are stable; Data bus inputs are floating IDD2Q2 864 864 mA Precharge standby current: All device banks idle; tCK = tCK (IDD); CKE is HIGH, S# is HIGH; Other control and address bus inputs are switching; Data bus inputs are switching IDD2N2 1008 864 mA Active power-down current: All device banks open; tCK = tCK Fast PDN exit (IDD); CKE is LOW; Other control and address bus inputs are stable; MR[12] = 0 Data bus inputs are floating Slow PDN exit MR[12] = 1 IDD3P2 720 540 mA 360 360 Active standby current: All device banks open; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Other control and address bus inputs are switching; Data bus inputs are switching IDD3N2 1188 1080 mA Operating burst write current: All device banks open; Continuous burst writes; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data bus inputs are switching IDD4W1 2376 2196 mA PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 11 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM IDD Specifications Table 11: DDR2 IDD Specifications and Conditions – 4GB (Die Revision H) (Continued) Values shown for MT47H256M4 DDR2 SDRAM only and are computed from values specified in the 2Gb (256 Meg x 4) component data sheet -80E/ Parameter Symbol -800 -667 Units Operating burst read current: All device banks open; Continuous burst read, IOUT = 0mA; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data bus inputs are switching IDD4R1 2286 2106 mA Burst refresh current:tCK = tCK (IDD); REFRESH command at every tRFC (IDD) interval; CKE is HIGH, S# is HIGH between valid commands; Other control and address bus inputs are switching; Data bus inputs are switching IDD52 2736 2646 mA Self refresh current: CK and CK# at 0V; CKE ≤ 0.2V; Other control and address bus inputs are floating; Data bus inputs are floating IDD62 252 252 mA Operating bank interleave read current: All device banks interleaving reads, IOUT = 0mA; BL = 4, CL = CL (IDD), AL = tRCD (IDD) - 1 × tCK (IDD); tCK = tCK (IDD), tRC = tRC (I ), tRRD = tRRD (I ), tRCD = tRCD (I ); CKE is HIGH, S# is HIGH between valid DD DD DD commands; Address bus inputs are stable during deselects; Data bus inputs are switching IDD71 3906 3456 mA Notes: 1. Value calculated as one module rank in this operating condition. All other module ranks in IDD2P (CKE LOW) mode. 2. Value calculated reflects all module ranks in this operating condition. Table 12: DDR2 IDD Specifications and Conditions – 4GB (Die Revisions M) Values shown for MT47H256M4 DDR2 SDRAM only and are computed from values specified in the 1Gb (256 Meg x 4) component data sheet -80E/ Parameter Symbol -800 -667 Units Operating one bank active-precharge current:tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS MIN (I ); CKE is HIGH, S# is HIGH between valid commands; Address DD bus inputs are switching; Data bus inputs are switching IDD01 1350 1260 mA Operating one bank active-read-precharge current: IOUT = 0mA; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS MIN (IDD), tRCD = tRCD (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data pattern is same as IDD4W IDD11 1530 1440 mA Precharge power-down current: All device banks idle; tCK = tCK (IDD); CKE is LOW; Other control and address bus inputs are stable; Data bus inputs are floating IDD2P2 360 360 mA Precharge quiet standby current: All device banks idle; tCK = tCK (IDD); CKE is HIGH, S# is HIGH; Other control and address bus inputs are stable; Data bus inputs are floating IDD2Q2 864 864 mA Precharge standby current: All device banks idle; tCK = tCK (IDD); CKE is HIGH, S# is HIGH; Other control and address bus inputs are switching; Data bus inputs are switching IDD2N2 1008 864 mA PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 12 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM IDD Specifications Table 12: DDR2 IDD Specifications and Conditions – 4GB (Die Revisions M) (Continued) Values shown for MT47H256M4 DDR2 SDRAM only and are computed from values specified in the 1Gb (256 Meg x 4) component data sheet -80E/ Parameter Symbol -800 -667 Units Active power-down current: All device banks open; tCK = tCK Fast PDN exit (IDD); CKE is LOW; Other control and address bus inputs are stable; MR[12] = 0 Data bus inputs are floating Slow PDN exit MR[12] = 1 IDD3P2 Active standby current: All device banks open; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Other control and address bus inputs are switching; Data bus inputs are switching 1008 1008 720 720 IDD3N2 1188 1080 mA Operating burst write current: All device banks open; Continuous burst writes; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data bus inputs are switching IDD4W1 2430 2250 mA Operating burst read current: All device banks open; Continuous burst read, IOUT = 0mA; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data bus inputs are switching IDD4R1 2340 2160 mA Burst refresh current:tCK = tCK (IDD); REFRESH command at every tRFC (IDD) interval; CKE is HIGH, S# is HIGH between valid commands; Other control and address bus inputs are switching; Data bus inputs are switching IDD52 2970 2880 mA Self refresh current: CK and CK# at 0V; CKE ≤ 0.2V; Other control and address bus inputs are floating; Data bus inputs are floating IDD62 252 252 mA Operating bank interleave read current: All device banks interleaving reads, IOUT = 0mA; BL = 4, CL = CL (IDD), AL = tRCD (IDD) - 1 × tCK (IDD); tCK = tCK (IDD), tRC = tRC (I ), tRRD = tRRD (I ), tRCD = tRCD (I ); CKE is HIGH, S# is HIGH between valid DD DD DD commands; Address bus inputs are stable during deselects; Data bus inputs are switching IDD71 3960 3510 mA Notes: mA 1. Value calculated as one module rank in this operating condition. All other module ranks in IDD2P (CKE LOW) mode. 2. Value calculated reflects all module ranks in this operating condition. Table 13: DDR2 IDD Specifications and Conditions – 8GB (Die Revision C) Values shown for MT47H512M4 DDR2 SDRAM only and are computed from values specified in the 2Gb (512 Meg x 4) component data sheet -80E/ Parameter Symbol -800 -667 Units Operating one bank active-precharge current:tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS MIN (I ); CKE is HIGH, S# is HIGH between valid commands; Address DD bus inputs are switching; Data bus inputs are switching IDD01 1566 1476 mA Operating one bank active-read-precharge current: IOUT = 0mA; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS MIN (IDD), tRCD = tRCD (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data pattern is same as IDD4W IDD11 1764 1656 mA PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 13 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM IDD Specifications Table 13: DDR2 IDD Specifications and Conditions – 8GB (Die Revision C) (Continued) Values shown for MT47H512M4 DDR2 SDRAM only and are computed from values specified in the 2Gb (512 Meg x 4) component data sheet -80E/ Parameter Symbol -800 -667 Units Precharge power-down current: All device banks idle; tCK = tCK (IDD); CKE is LOW; Other control and address bus inputs are stable; Data bus inputs are floating IDD2P2 432 432 mA Precharge quiet standby current: All device banks idle; tCK = tCK (IDD); CKE is HIGH, S# is HIGH; Other control and address bus inputs are stable; Data bus inputs are floating IDD2Q2 1080 900 mA Precharge standby current: All device banks idle; tCK = tCK (IDD); CKE is HIGH, S# is HIGH; Other control and address bus inputs are switching; Data bus inputs are switching IDD2N2 1260 1080 mA Active power-down current: All device banks open; tCK = tCK Fast PDN exit (IDD); CKE is LOW; Other control and address bus inputs are stable; MR[12] = 0 Data bus inputs are floating Slow PDN exit MR[12] = 1 IDD3P2 900 900 mA 504 504 Active standby current: All device banks open; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Other control and address bus inputs are switching; Data bus inputs are switching IDD3N2 1800 1620 mA Operating burst write current: All device banks open; Continuous burst writes; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data bus inputs are switching IDD4W1 2556 2196 mA Operating burst read current: All device banks open; Continuous burst read, IOUT = 0mA; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data bus inputs are switching IDD4R1 2556 2196 mA Burst refresh current:tCK = tCK (IDD); REFRESH command at every tRFC (IDD) interval; CKE is HIGH, S# is HIGH between valid commands; Other control and address bus inputs are switching; Data bus inputs are switching IDD52 3276 3186 mA Self refresh current: CK and CK# at 0V; CKE ≤ 0.2V; Other control and address bus inputs are floating; Data bus inputs are floating IDD62 432 432 mA Operating bank interleave read current: All device banks interleaving reads, IOUT = 0mA; BL = 4, CL = CL (IDD), AL = tRCD (IDD) - 1 × tCK (IDD); tCK = tCK (IDD), tRC = tRC (I ), tRRD = tRRD (I ), tRCD = tRCD (I ); CKE is HIGH, S# is HIGH between valid DD DD DD commands; Address bus inputs are stable during deselects; Data bus inputs are switching IDD71 4176 3816 mA Notes: PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 1. Value calculated as one module rank in this operating condition. All other module ranks in IDD2P (CKE LOW) mode. 2. Value calculated reflects all module ranks in this operating condition. 14 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM Register and PLL Specifications Register and PLL Specifications Table 14: Register Specifications SSTU32866 devices or equivalent Parameter Symbol Pins Condition Min Max Units DC high-level input voltage VIH(DC) Control, command, address SSTL_18 VREF(DC) + 125 VDDQ + 250 mV DC low-level input voltage VIL(DC) Control, command, address SSTL_18 0 VREF(DC) - 125 mV AC high-level input voltage VIH(AC) Control, command, address SSTL_18 VREF(DC) + 250 – mV AC low-level input voltage VIL(AC) Control, command, address SSTL_18 – VREF(DC) - 250 mV Output high voltage VOH Parity output LVCMOS 1.2 – V Output low voltage VOL Parity output LVCMOS – 0.5 V Input current II All pins VI = VDD or VSS – ±0.5 µA Static standby IDD All pins RESET# = VSSQ (IO = 0) – 100 µA Static operating IDD All pins RESET# = VSS; VI = VIH(AC) or VIL(DC) IO = 0 – 40 mA Dynamic operating (clock tree) IDDD N/A RESET# = VDD; VI = VIH(DC) or VIL(AC), IO = 0; CK and CK# switching 50% duty cycle – Varies by manufacturer µA Dynamic operating (per each input) IDDD N/A RESET# = VDD; VI = VIH(AC) or VIL(DC), IO = 0; CK and CK# switching 50% duty cycle; One data in/out switching at tCK/2, 50% duty cycle – Varies by manufacturer µA Input capacitance (per device, per pin) CIN All inputs except RESET# VI = VREF ±250mV; VDD = 1.8V 2.5 3.5 pF Input capacitance (per device, per pin) CIN RESET# VI = VDD or VSS Varies by manufacturer Varies by manufacturer pF Note: PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 1. Timing and switching specifications for the register listed are critical for proper operation of the DDR2 SDRAM RDIMMs. These are meant to be a subset of the parameters for the specific device used on the module. Detailed information for this register is available in JEDEC standard JESD82. 15 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM Register and PLL Specifications Table 15: PLL Specifications CU877 device or equivalent Parameter Symbol Pins Condition Min Max Units DC high-level input voltage VIH RESET# LVCMOS 0.65 × VDD – V DC low-level input voltage VIL RESET# LVCMOS – 0.35 × VDD V Input voltage (limits) VIN RESET#, CK, CK# – - 0.3 VDD + 0.3 V DC high-level input voltage VIH CK, CK# Differential input 0.65 × VDD – V DC low-level input voltage VIL CK, CK# Differential input – 0.35 × VDD V Input differential-pair cross voltage VIX CK, CK# Differential input (VDDQ/2) - 0.15 (VDD/2) + 0.15 V Input differential voltage VID(DC) CK, CK# Differential input 0.3 VDD + 0.4 V Input differential voltage VID(AC) CK, CK# Differential input 0.6 VDD + 0.4 V RESET# VI = VDD or VSS –10 10 µA CK, CK# VI = VDD or VSS –250 250 µA Input current II Output disabled current IODL RESET# = VSS; VI = VIH(AC) or VIL(DC) 100 – µA Static supply current IDDLD CK = CK# = LOW – 500 µA Dynamic supply IDD N/A CK, CK# = 270 MHz, all outputs open (not connected to PCB) – 300 mA Input capacitance CIN Each input VI = VDD or VSS 2 3 pF Table 16: PLL Clock Driver Timing Requirements and Switching Characteristics Parameter Symbol Min Max Units tL – 15 μs slr(i) 1.0 4.0 V/ns SSC modulation frequency – 30 33 kHz SSC clock input frequency deviation – 0.0 –0.5 % PLL loop bandwidth (–3dB from unity gain) – 2.0 – MHz Stabilization time Input clock slew rate Note: PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 1. PLL timing and switching specifications are critical for proper operation of the DDR2 DIMM. This is a subset of parameters for the specific PLL used. Detailed PLL information is available in JEDEC standard JESD82. 16 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM Serial Presence-Detect Serial Presence-Detect For the latest SPD data, refer to Micron's SPD page: www.micron.com/SPD. Table 17: SPD EEPROM Operating Conditions Parameter/Condition Symbol Min Max Units VDDSPD 1.7 3.6 V Input high voltage: logic 1; All inputs VIH VDDSPD × 0.7 VDDSPD + 0.5 V Input low voltage: logic 0; All inputs VIL –0.6 VDDSPD × 0.3 V Output low voltage: IOUT = 3mA Supply voltage VOL – 0.4 V Input leakage current: VIN = GND to VDD ILI 0.1 3 µA Output leakage current: VOUT = GND to VDD ILO 0.05 3 µA Standby current ISB 1.6 4 µA Power supply current, READ: SCL clock frequency = 100 kHz ICCR 0.4 1 mA Power supply current, WRITE: SCL clock frequency = 100 kHz ICCW 2 3 mA Table 18: SPD EEPROM AC Operating Conditions Parameter/Condition Symbol Min Max Units Notes SCL LOW to SDA data-out valid tAA 0.2 0.9 µs 1 Time bus must be free before a new transition can start tBUF 1.3 – µs Data-out hold time tDH 200 – ns SDA and SCL fall time tF – 300 ns 2 SDA and SCL rise time tR – 300 ns 2 Data-in hold time tHD:DAT 0 – µs Start condition hold time tHD:STA 0.6 – µs tHIGH 0.6 – µs tI – 50 ns tLOW 1.3 – µs tSCL – 400 kHz Data-in setup time tSU:DAT 100 – ns Start condition setup time tSU:STA 0.6 – µs Stop condition setup time tSU:STO 0.6 – µs tWRC – 10 ms Clock HIGH period Noise suppression time constant at SCL, SDA inputs Clock LOW period SCL clock frequency WRITE cycle time Notes: PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 3 4 1. To avoid spurious start and stop conditions, a minimum delay is placed between SCL = 1 and the falling or rising edge of SDA. 2. This parameter is sampled. 3. For a restart condition or following a WRITE cycle. 4. The SPD EEPROM WRITE cycle time (tWRC) is the time from a valid stop condition of a write sequence to the end of the EEPROM internal ERASE/PROGRAM cycle. During the WRITE cycle, the EEPROM bus interface circuit is disabled, SDA remains HIGH due to pull-up resistance, and the EEPROM does not respond to its slave address. 17 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved. 2Gb, 4GB, 8GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM Module Dimensions Module Dimensions Figure 3: 240-Pin DDR2 RDIMM Front view 4.0 (0.157) MAX 133.5 (5.256) 133.2 (5.244) U1 2.0 (0.079) R (4X) U2 U3 U4 U7 U5 U8 U9 U10 U11 U18 U19 U20 U21 U6 U12 U13 U14 U15 U16 2.5 (0.098) D (2X) 30.5 (1.2) 29.85 (1.175) 17.78 (0.7) TYP U17 2.3 (0.091) TYP 0.76 (0.03) R Pin 1 1.0 (0.039) TYP 2.21 (0.087) TYP 1.0 (0.039) TYP 10.0 (0.394) TYP 0.8 (0.031) TYP 1.37 (0.054) 1.17 (0.046) Pin 120 70.66 (2.782) TYP 123.0 (4.840) TYP Back view 45° (4X) U22 U23 U24 U25 U27 U28 U29 U30 U31 U36 U37 U38 U39 U40 U26 U32 3.04 (0.1197) TYP U33 U34 Pin 240 U35 Pin 121 5.0 (0.197) TYP 55.0 (2.165) TYP Notes: 63.0 (2.48) TYP 1. All dimensions are in millimeters (inches); MAX/MIN or typical (TYP) where noted. 2. The dimensional diagram is for reference only. 8000 S. Federal Way, P.O. Box 6, Boise, ID 83707-0006, Tel: 208-368-3900 www.micron.com/productsupport Customer Comment Line: 800-932-4992 Micron and the Micron logo are trademarks of Micron Technology, Inc. All other trademarks are the property of their respective owners. This data sheet contains minimum and maximum limits specified over the power supply and temperature range set forth herein. Although considered final, these specifications are subject to change, as further product development and data characterization sometimes occur. PDF: 09005aef83d65c27 htf36c256_512_1gx72pz.pdf - Rev. E 4/14 EN 18 Micron Technology, Inc. reserves the right to change products or specifications without notice. © 2009 Micron Technology, Inc. All rights reserved.