Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module DESCRIPTION The MH8D64AKQC is 8388608 - word x 64-bit Double Data Rate(DDR) Sy nchronous DRAM mounted module. This consists of 4 industry standard 8M x 16 DDR Sy nchronous DRAMs in TSOP with SSTL_2 interf ace which achiev es v ery high speed data rate up to 133MHz. This socket-ty pe memory m odule is suitable f or main memory in computer systems and easy to interchange or add modules. FEATURES Max. Frequency Type name CLK Access Time [component level] MH8D64AKQC-75 133MHz + 0.75ns MH8D64AKQC-10 100MHz + 0.8ns - Utilizes industry standard 8M X 16 DDR Synchronous DRAMs in TSOP package , industry standard EEPROM(SPD) in TSSOP package - 200pin SO-DIMM - Vdd=Vddq=2.5v ±0.2V - Double data rate architecture; two data transf ers per clock cy c le - Bidirectional, data strobe (DQS) is transmitted/receiv ed with data - Dif f erential clock inputs (CLK and /CLK) - DLL aligns DQ and DQS transitions with CLK transition edges of DQS - Commands entered on each positiv e CLK edge - Data and data mask ref erenced to both edges of DQS - 4bank operation concontrolled by BA0,BA1(Bank Address ,discrete) - /CAS latency - 2.0/2.5 (programmable) - Burst length- 2/4/8 (programmable) - Burst Ty pe - sequential/interleav e(programmable) - Auto precharge / All bank precharge controlled by A10 - 4096 ref resh cy c les /64ms - Auto ref resh and Self ref resh - Row address A0-11 / Column address A0-8 - SSTL_2 Interf ace - Module 1bank Conf igration APPLICATION Main memory unit for Note PC, Mobile etc. PCB Outline (Front) (Back) MIT-DS-0419-0.1 1 2 199 200 MITSUBISHI ELECTRIC 17.May.2001 1 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module PIN CONFIGURATION PIN NO. PIN NAME Vref PIN NO. 85 PIN NO. PIN NO. PIN NO. 1 86 PIN NAME NC 169 PIN NAME DQS6 170 PIN NAME DM6 3 Vss 4 Vss 87 Vss 88 Vss 171 DQ50 172 DQ54 5 DQ0 6 DQ4 89 CK2 90 Vss 173 Vss 174 Vss 7 DQ1 8 DQ5 91 /CK2 92 Vdd 175 DQ51 176 DQ55 9 Vdd 10 Vdd 93 Vdd 94 Vdd 177 DQ56 178 DQ60 11 DQS0 12 DM0 95 CKE1 96 CKE0 179 Vdd 180 Vdd 13 DQ2 14 DQ6 97 NC 98 NC 181 DQ57 182 DQ61 15 Vss 16 Vss 99 A12 100 A11 183 DQS7 184 DM7 17 DQ3 18 DQ7 101 A9 102 A8 185 Vss 186 Vss 19 DQ8 20 DQ12 103 Vss 104 Vss 187 DQ58 188 DQ62 21 Vdd 22 Vdd 105 A7 106 A6 189 DQ59 190 DQ63 23 DQ9 24 DQ13 107 A5 108 A4 191 Vdd 192 Vdd 25 DQS1 26 DM1 109 A3 110 A2 193 SDA 194 SA0 27 Vss 28 Vss 111 A1 112 A0 195 SCL 196 SA1 29 DQ10 30 DQ14 113 Vdd 114 Vdd 197 VddSPD 198 SA2 31 DQ11 32 DQ15 115 A10/AP 116 BA1 199 VddID 200 NC 33 Vdd 34 Vdd 117 BA0 118 /RAS 35 CK0 36 Vdd 119 /WE 120 /CAS 37 /CK0 38 Vss 121 /S0 122 /S1 39 Vss 40 Vss 123 NC 124 NC 41 DQ16 42 DQ20 125 Vss 126 Vss 43 DQ17 44 DQ21 127 DQ32 128 DQ36 45 Vdd 46 Vdd 129 DQ33 130 DQ37 47 DQS2 48 DM2 131 Vdd 132 Vdd 49 DQ18 50 DQ22 133 DQS4 134 DM4 51 Vss 52 Vss 135 DQ34 136 DQ38 53 DQ19 54 DQ23 137 Vss 138 Vss 55 DQ24 56 DQ28 139 DQ35 140 DQ39 57 Vdd 58 Vdd 141 DQ40 142 DQ44 59 DQ25 60 DQ29 143 Vdd 144 Vdd 61 DQS3 62 DM3 145 DQ41 146 DQ45 63 Vss 64 Vss 147 DQS5 148 DM5 65 DQ26 66 DQ30 149 Vss 150 Vss 67 DQ27 68 DQ31 151 DQ42 152 DQ46 69 Vdd 70 Vdd 153 DQ43 154 DQ47 71 NC 72 NC 155 Vdd 156 Vdd 73 NC 74 NC 157 Vdd 158 /CK1 75 Vss 76 Vss 159 Vss 160 CK1 77 NC 78 NC 161 Vss 162 Vss 79 NC 80 NC 163 DQ48 164 DQ52 81 Vdd 82 Vdd 165 DQ49 166 DQ53 83 NC 84 NC 167 Vdd 168 Vdd MIT-DS-0419-0.1 PIN NO. 2 PIN NAME NC PIN NAME Vref MITSUBISHI ELECTRIC NC: No Connect 17.May.2001 2 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module Block Diagram /S0 DQS0 DM0 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQS1 DM1 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 LDQS LDM DQS2 DM2 DQ16 DQ17 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 DQS3 DM3 DQ24 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 LDQS LDM I/O I/O I/O I/O I/O I/O I/O I/O DQS4 DM4 DQ32 DQ33 DQ34 DQ35 DQ36 DQ37 DQ38 DQ39 DQS5 DM5 DQ40 DQ41 DQ42 DQ43 DQ44 DQ45 DQ46 DQ47 /S 0 1 D0 2 3 4 5 6 7 UDQS UDM I/O I/O I/O I/O I/O I/O I/O I/O 8 9 10 11 12 13 14 15 /S I/O I/O I/O I/O I/O I/O I/O I/O 0 1 D1 2 3 4 5 6 7 I/O I/O I/O I/O I/O I/O I/O I/O 8 9 10 11 12 13 14 15 UDQS UDM 22Ω CKE0 /RAS /CAS /WE BA0,BA1,A<11:0> D0 - D3 D0 D0 D0 D0 - D3 D3 D3 D3 VddSPD SPD Vref D0 - D3 Vdd D0 - D3 Vss D0 - D3 I/O I/O I/O I/O I/O I/O I/O I/O /S 0 1 D2 2 3 4 5 6 7 UDQS UDM I/O I/O I/O I/O I/O I/O I/O I/O LDQS LDM DQS7 DM7 DQ56 DQ57 DQ58 DQ59 DQ60 DQ61 DQ62 DQ63 UDQS UDM CK0 /CK0 CK1 /CK1 CK2 /CK2 MITSUBISHI ELECTRIC I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O /S 8 9 10 11 12 13 14 15 DQS6 DM6 DQ48 DQ49 DQ50 DQ51 DQ52 DQ53 DQ54 DQ55 VddID MIT-DS-0419-0.1 LDQS LDM /S 0 1 D3 2 3 4 5 6 7 8 9 10 11 12 13 14 15 SERIAL PD 2loads SCL SA0 SA1 2loads SA2 A0 A1 A2 SDA WP 0loads NOTE: DQ wiring may differ from that described in this drawing; however DQ/DM/DQS relationships are maintained as shown. Vdd ID strap connections: (for memory device Vdd, VddQ) Strap out (open): Vdd=VddQ Strap in (closed): Vdd=VddQ 17.May.2001 3 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module PIN FUNCTION SYMBOL TYPE DESCRIPTION Input Clock: CK0-2 and /CK0-2 are dif f erential clock inputs. All address and control input signals are sampled on the crossing of the positiv e edge of CK0-2 and negativ e edge of /CK0-2. Output (read) data is ref erenced to the crossings of CK0-2 and /CK0-2 (both directions of c rossing). CKE0 Input Clock Enable: CKE0-1 controls internal clock. When CKE0-1 is low, internal clock f or the f ollowing cy c le is ceased. CKE0-1 is also used to select auto / self ref resh. After self ref resh mode is started, CKE0-1 becomes asy nchronous input. Self ref resh is maintained as long as CKE0-1 is low. /S0 Input Chip Select: When /S0-1 is high, any command means No Operation. Input Combination of /RAS, /CAS, /WE defines basic commands. CK0-2,/CK0-2 /RAS, /CAS, /WE A0-11 Input A0-11 specif y the Row / Column Address in conjunction with BA0,1. The Row Address is specif ied by A0-11. The Column Address is specif ied by A0-8. A10 is also used to indicate precharge option. When A10 is high at a read / write command, an auto precharge is perf ormed. When A10 is high at a precharge command, all banks are precharged. BA0-1 Input Bank Address: BA0-1 specif y one of f our banks in SDRAM to which a command is applied. BA0-1 must be set with ACT, PRE, READ, WRITE commands. DQ 0-64 Input / Output Data Input/Output: Data bus DQS0-7 Input / Output DM0-7 Vdd, Vss Vddspd Vref Input Data Strobe: Output with read data, input with write data. Edge-aligned with read data, centered in write data. Used to capture write data. Input Data Mask: DM is an input mask signal for write data. Input data is masked when DM0-7 is sampled HIGH along with that input data during a WRITE access. DM0-7 are sampled on both edges of DQS0-7. Although DM pins are input only, the DM0-7 loading matches the DQ0-63 and DQS0-7 loading. Power Supply Power Supply for the memory array and peripheral circuitry. Power Supply Input Power Supply for SPD SSTL_2 reference voltage. This is a bidirectional pin used to transf er data into or out of the SPD EEPROM. SDA Input / Output A resistor must be connected to Vdd to act as a pullup. SCL Input / Output may be connected f rom the SCL to Vdd to act as a pullup. This signal is used to clock data into and out of the SPD EEPROM. A resistor SA0-2 Input VddID Output MIT-DS-0419-0.1 Address pins used to select the Serial Presence Detect. Vdd identif ication f lag MITSUBISHI ELECTRIC 17.May.2001 4 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module BASIC FUNCTIONS The MH8D64AKQC provides basic functions, bank (row) activate, burst read / write, bank (row) precharge, and auto / self refresh. Each command is defined by control signals of /RAS, /CAS and /WE at CLK rising edge. In addition to 3 signals, /CS ,CKE and A10 are used as chip select, refresh option, and precharge option, respectively. To know the detailed definition of commands, please see the command truth table. /CK0 CK0 /S0 Chip Select : L=select, H=deselect /RAS Command /CAS Command /WE Command CKE0 A10 def ine basic commands Ref resh Option @ref resh command Precharge Option @precharge or read/write command Activate (ACT) [/RAS =L, /CAS =/WE =H] ACT command activates a row in an idle bank indicated by BA. Read (READ) [/RAS =H, /CAS =L, /WE =H] READ command starts burst read from the active bank indicated by BA. First output data appears after /CAS latency. When A10 =H at this command, the bank is deactivated after the burst read (auto-precharge,READA) Write (WRITE) [/RAS =H, /CAS =/WE =L] WRITE command starts burst write to the active bank indicated by BA. Total data length to be written is set by burst length. When A10 =H at this command, the bank is deactivated after the burst write (auto-precharge, WRITEA). Precharge (PRE) [/RAS =L, /CAS =H, /WE =L] PRE command deactivates the active bank indicated by BA. This command also terminates burst read /write operation. When A10 =H at this command, all banks are deactivated (precharge all, PREA). Auto-Refresh (REFA) [/RAS =/CAS =L, /WE =CKE0 =H] REFA command starts auto-refresh cycle. Refresh address including bank address are generated internally. After this command, the banks are precharged automatically. MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 5 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module COM M AND TRUTH TABLE COMMAND MNEMONIC CKE n-1 CKE n Deselect DESEL H X NOP H Row Address Entry & Bank Activate ACT Single Bank Precharge Precharge All Banks A0-9, note 11 /RAS /CAS /WE BA0,1 A10 /AP H X X X X X X X L H H H X X X H H L L H H V V V PRE H H L L H L V L X PREA H H L L H L X H X WRIT E H H L H L L V L V WRITEA H H L H L L V H V READ H H L H L H V L V READA H H L H L H V H V REFA H H L L L H X X X Self-Refresh Entry REFS H L L L L H X X X Self-Refresh Exit REFSX L H H X X X X X X L H L H H H X X X Burst Terminate TERM H H L H H L X X X 1 Mode Register Set MRS H H L L L L L L V 2 No Operation Column Address Entry & Write Column Address Entry & Write with Auto-Precharge Column Address Entry & Read Column Address Entry & Read with Auto-Precharge Auto-Refresh /S H=High Level, L=Low Level, V=Valid, X=Don't Care, n=CLK cycle number NOTE: 1. Applies only to read bursts with autoprecharge disabled; this command is undefined (and should not be used) for read bursts with autoprecharge enabled, and for write bursts. 2. BA0-BA1 select either the Base or the Extended Mode Register (BA0 = 0, BA1 = 0 selects Mode Register; BA0 = 1, BA1 = 0 selects Extended Mode Register; other combinations of BA0-BA1 are reserved; A0-A11 provide the op-code to be written to the selected Mode Register. MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 6 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module FUNCTION TRUTH TABLE Current State /S IDLE H X X X X DESEL NOP L H H H X NOP NOP L H H L BA TERM ILLEGAL 2 L H L X BA, CA, A10 READ / WRITE ILLEGAL 2 L L H H BA, RA ACT L L H L BA, A10 PRE / PREA L L L H X L L L L H X X X X DESEL NOP L H H H X NOP NOP L H H L BA TERM NOP L H L H BA, CA, A10 L H L L BA, CA, A10 L L H H BA, RA ACT L L H L BA, A10 PRE / PREA L L L H X L L L L H X X X X DESEL NOP (Continue Burst to END) L H H H X NOP NOP (Continue Burst to END) L H H L BA TERM Terminate Burst ROW ACTIVE READ (AutoPrecharge Disabled) /RAS /CAS /WE Address Command Op-Code, Mode-Add Action Notes Bank Active, Latch RA NOP 4 REFA Auto-Refresh 5 MRS Mode Register Set 5 READ / READA Begin Read, Latch CA, Determine Auto-Precharge WRITE / Begin Write, Latch CA, WRITEA Determine Auto-Precharge Op-Code, Mode-Add 2 Bank Active / ILLEGAL Precharge / Precharge All REFA ILLEGAL MRS ILLEGAL Terminate Burst, Latch CA, L H L H BA, CA, A10 READ / READA Begin New Read, Determine 3 Auto-Precharge MIT-DS-0419-0.1 WRITE L H L L BA, CA, A10 L L H H BA, RA ACT L L H L BA, A10 PRE / PREA L L L H X L L L L WRITEA Op-Code, Mode-Add MITSUBISHI ELECTRIC ILLEGAL 2 Bank Active / ILLEGAL Terminate Burst, Precharge REFA ILLEGAL MRS ILLEGAL 17.May.2001 7 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module FUNCTION TRUTH TABLE (continued) Current State /S WRIT E (AutoPrecharge Disabled) H X X X L H H L H H /RAS /CAS /WE Address Command Action Notes X DESEL NOP (Continue Burst to END) H X NOP NOP (Continue Burst to END) L BA TERM ILLEGAL Terminate Burst, Latch CA, L H L H BA, CA, A10 READ / READA Begin Read, Determine AutoPrecharge WRITE / 3 Terminate Burst, Latch CA, Begin Write, Determine AutoPrecharge 3 Bank Active / ILLEGAL 2 L H L L BA, CA, A10 L L H H BA, RA ACT L L H L BA, A10 PRE / PREA L L L H X L L L L READ with H X X X X DESEL NOP (Continue Burst to END) AUTO PRECHARGE L H H H X NOP NOP (Continue Burst to END) L H H L BA TERM ILLEGAL L H L H BA, CA, A10 L H L L BA, CA, A10 L L H H BA, RA ACT Bank Active / ILLEGAL 2 L L H L BA, A10 PRE / PREA PRECHARGE/ILLEGAL 2 L L L H X REFA ILLEGAL L L L L Op-Code, Mode-Add MRS ILLEGAL WRITE with H X X X X DESEL NOP (Continue Burst to END) AUTO PRECHARGE L H H H X NOP NOP (Continue Burst to END) L H H L BA TERM ILLEGAL L H L H BA, CA, A10 L H L L BA, CA, A10 L L H H BA, RA ACT Bank Active / ILLEGAL 2 L L H L BA, A10 PRE / PREA PRECHARGE/ILLEGAL 2 L L L H X REFA ILLEGAL L L L L Op-Code, Mode-Add MRS ILLEGAL MIT-DS-0419-0.1 WRITEA Op-Code, Mode-Add Terminate Burst, Precharge REFA ILLEGAL MRS ILLEGAL READ / READA ILLEGAL WRITE / WRITEA ILLEGAL READ / READA ILLEGAL WRITE / WRITEA MITSUBISHI ELECTRIC ILLEGAL 17.May.2001 8 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module FUNCTION TRUTH TABLE (continued) Current State /S PRE - H X X X X DESEL NOP (Idle after tRP) CHARGING L H H H X NOP NOP (Idle after tRP) L H H L BA TERM ILLEGAL 2 L H L X BA, CA, A10 READ / WRITE ILLEGAL 2 L L H H BA, RA ACT L L H L BA, A10 PRE / PREA L L L H X L L L L H X X X X DESEL NOP (Row Active after tRCD) L H H H X NOP NOP (Row Active after tRCD) L H H L BA TERM ILLEGAL 2 L H L X BA, CA, A10 READ / WRITE ILLEGAL 2 L L H H BA, RA ACT ILLEGAL 2 L L H L BA, A10 PRE / PREA ILLEGAL 2 L L L H X REFA ILLEGAL L L L L MRS ILLEGAL WRITE RE- H X X X X DESEL NOP COVERING L H H H X NOP NOP L H H L BA TERM ILLEGAL L H L X BA, CA, A10 L L H H BA, RA ACT ILLEGAL 2 L L H L BA, A10 PRE / PREA ILLEGAL 2 L L L H X REFA ILLEGAL L L L L MRS ILLEGAL ROW ACTIVATING MIT-DS-0419-0.1 /RAS /CAS /WE Address Command Op-Code, Mode-Add Op-Code, Mode-Add Action Notes ILLEGAL 2 NOP (Idle after tRP) 4 REFA ILLEGAL MRS ILLEGAL 2 2 READ / WRITE ILLEGAL Op-Code, Mode-Add MITSUBISHI ELECTRIC 17.May.2001 9 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module FUNCTION TRUTH TABLE (continued) Current State /S /RAS /CAS /WE Address Command Action RE- H X X X X DESEL NOP (Idle after tRC) FRESHING L H H H X NOP NOP (Idle after tRC) L H H L BA TERM ILLEGAL L H L X BA, CA, A10 L L H H BA, RA ACT ILLEGAL L L H L BA, A10 PRE / PREA ILLEGAL L L L H X REFA ILLEGAL L L L L MRS ILLEGAL MODE H X X X X DESEL NOP (Idle after tRSC) REGISTER L H H H X NOP NOP (Idle after tRSC) SETTING L H H L BA TERM ILLEGAL L H L X BA, CA, A10 L L H H BA, RA ACT ILLEGAL L L H L BA, A10 PRE / PREA ILLEGAL L L L H X REFA ILLEGAL L L L L MRS ILLEGAL Notes READ / WRITE ILLEGAL Op-Code, Mode-Add READ / WRITE ILLEGAL Op-Code, Mode-Add ABBREVIATIONS: H=High Level, L=Low Level, X=Don't Care BA=Bank Address, RA=Row Address, CA=Column Address, NOP=No Operation NOTES: 1. All entries assume that CKE was High during the preceding clock cycle and the current clock cycle. 2. ILLEGAL to bank in specified state; function may be legal in the bank indicated by BA, depending on the state of that bank. 3. Must satisfy bus contention, bus turn around, write recovery requirements. 4. NOP to bank precharging or in idle state. May precharge bank indicated by BA. 5. ILLEGAL if any bank is not idle. ILLEGAL = Device operation and/or data-integrity are not guaranteed. MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 10 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module FUNCTION TRUTH TABLE for CKE Current State CKE0 CKE0 /S0 /RAS /CAS /WE n n-1 Add Action Notes H X X X X X X INVALID 1 L H H X X X X Exit Self-Refresh (Idle after tRC) 1 L H L H H H X Exit Self-Refresh (Idle after tRC) 1 L H L H H L X ILLEGAL 1 L H L H L X X ILLEGAL 1 L H L L X X X ILLEGAL 1 L L X X X X X NOP (Maintain Self-Refresh) 1 POWER H X X X X X X INVALID DOWN L H X X X X X Exit Power Down to Idle L L X X X X X NOP (Maintain Self-Refresh) H H X X X X X Refer to Function Truth Table 2 H L L L L H X Enter Self-Refresh 2 H L H X X X X Enter Power Down 2 H L L H H H X Enter Power Down 2 H L L H H L X ILLEGAL 2 H L L H L X X ILLEGAL 2 H L L L X X X ILLEGAL 2 L X X X X X X Refer to Current State =Power Down 2 ANY STATE H H X X X X X Refer to Function Truth Table other than H L X X X X X Begin CLK Suspend at Next Cycle 3 listed above L H X X X X X Exit CLK Suspend at Next Cycle 3 L L X X X X X Maintain CLK Suspend SELFREFRESH ALL BANKS IDLE ABBREVIATIONS: H=High Level, L=Low Level, X=Don't Care NOTES: 1. CKE Low to High transition will re-enable CK0 and other inputs asynchronously . A minimum setup time must be satisfied before any command other than EXIT. 2. Power-Down and Self-Refresh can be entered only from the All Banks Idle State. 3. Must be legal command. MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 11 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module SIMPLIFIED STATE DIAGRAM POWER APPLIED POWER ON PRE CHARGE ALL PREA SELF REFRESH REFS MRS MODE REGISTER SET REFSX MRS REFA AUTO REFRESH IDLE CKEL CKEH Active Power Down ACT POWER DOWN CKEL CKEH ROW ACTIVE WRITE BURST STOP READ WRITE READ WRITEA READA READ WRIT E WRITEA READ TERM READA READA PRE WRITEA PRE READA PRE PRE CHARGE Automatic Sequence Command Sequence MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 12 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module POWER ON SEQUENCE Before starting normal operation, the following power on sequence is necessary to prevent a SDRAM from damaged or multifunctioning. 1. Apply VDD before or the same time as VDDQ 2. Apply VDDQ before or at the same time as VTT & Vref 3. Maintain stable condition for 200us after stable power and CLK, apply NOP or DSEL 4. Issue precharge command for all banks of the device 5. Issue EMRS 6. Issue MRS for the Mode Register and to reset the DLL 7. Issue 2 or more Auto Refresh commands 8. Maintain stable condition for 200 cycle After these sequence, the SDRAM is idle state and ready for normal operation. MODE REGISTER CK0 Burst Length, Burst Type and /CAS Latency can be programmed by setting the mode register (MRS). The mode register stores these data until /CK0 the next MRS command, which may be issued when all banks in discrete /S0 are in idle state. After tMRD from a MRS command, the DDR DIMM is /RAS ready for new command. /CAS BA1 BA0 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 /WE A1 A0 BA0 0 0 0 0 0 DR 0 LTMODE BT BL BA1 V A11-A0 BL CL Latency Mode DLL Reset MIT-DS-0419-0.1 000 001 010 011 100 101 110 111 0 NO 1 YES /CAS Latency R R 2 R R R Burst Length 2.5 R Burst Type 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 BT= 0 0 1 0 1 0 1 0 1 R 2 4 8 R R R R BT= 1 R 2 4 8 R R R R Sequential Interleaved R: Reserved for Future Use MITSUBISHI ELECTRIC 17.May.2001 13 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module EXTENDED MODE REGISTER DLL disable / enable mode can be programmed by setting the extended mode register (EMRS). The extended mode register stores these data until the next EMRS command, which may be issued when all banks in discrete are in idle state. After tRSC from a EMRS command, the DDR DIMM is ready for new command. CK0 /CK0 /S0 /RAS /CAS /WE BA1 BA0 A11 A10 A9 0 1 0 0 0 A8 A7 A6 A5 A4 A3 0 0 0 0 0 0 A2 A1 A0 BA0 BA1 QFC DS DD A11-A0 DLL Disable Drive Strength QFC MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 0 1 V 0 1 DLL enable DLL disable 0 1 Normal Weak Disable Enable 17.May.2001 14 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module /CLK CLK Command Read Write Y Y Address DQS Q0 Q1 Q2 Q3 DQ Initial Address Burst Length Burst Length /CAS Latency CL= 2 BL= 4 D0 D1 D2 D3 BL Column Addressing A2 A1 A0 Sequential Interleaved 0 0 0 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 0 1 1 2 3 4 5 6 7 0 1 0 3 2 5 4 7 6 0 1 0 2 3 4 5 6 7 0 1 2 3 0 1 6 7 4 5 0 1 1 3 4 5 6 7 0 1 2 3 2 1 0 7 6 5 4 8 1 0 0 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 1 0 1 5 6 7 0 1 2 3 4 5 4 7 6 1 0 3 2 1 1 0 6 7 0 1 2 3 4 5 6 7 4 5 2 3 0 1 1 1 1 7 0 1 2 3 4 5 6 7 6 5 4 3 2 1 0 - 0 0 0 1 2 3 0 1 2 3 - 0 1 1 2 3 0 1 0 3 2 4 - 1 0 2 3 0 1 2 3 0 1 - 1 1 3 0 1 2 3 2 1 0 - - 0 0 1 0 1 1 0 1 0 - - 1 MIT-DS-0419-0.1 2 MITSUBISHI ELECTRIC 17.May.2001 15 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module ABSOLUTE M AXIMUM RATINGS Symbol Parameter Conditions Vdd Supply Voltage with respect to Vss VI Input Voltage with respect to Vss VO Output Voltage IO Output Current Pd Power Dissipation with respect to Vss Ratings Unit -0.5 ~ 3.7 V -0.5 ~ Vdd+0.5 V -0.5 ~ Vdd+0.5 V 50 mA Ta = 25°C 4 W Topr Operating Temperature 0 ~ 70 °C Tstg Storage Temperature -45 ~ 100 °C DC OPERATING CONDITIONS (Ta=0 ~ 70°C , unless otherwise noted) Limits Symbol Parameter Min. Typ. Max. 2.7 Vdd Supply Voltage 2.3 2.5 Vref Input Reference Voltage 0.49*Vdd 0.5*Vdd VIH(DC) High-Level Input Voltage Vref + 0.18 VIL(DC) Low-Level Input Voltage VIN(DC) Input Voltage Level, CK0 and /CK0 VID(DC) Input Differential Voltage, CK0 and /CK0 VTT I/O Termination Voltage 0.51*Vdd Unit Notes V V 5 Vdd+0.3 V -0.3 Vref - 0.18 V -0.3 Vdd + 0.3 V 0.36 Vdd + 0.6 V 7 Vref + 0.04 V 6 Vref - 0.04 CAPACITANCE (Ta=0 ~ 70°C , Vdd = VddQ = 2.5 ± 0.2V, Vss = VssQ = 0V, unless otherwise noted) Symbol Parameter CI(A) Input Capacitance, address pin CI(C) Input Capacitance, control pin CI(K) Input Capacitance, CK0 pin CI/O MIT-DS-0419-0.1 Test Condition VI - 1.25V f =100MHz Limits(max.) 35 pF 11 35 pF 11 30 pF 11 15 pF 11 VI = 25mVrm Input Capacitance, I/O pin MITSUBISHI ELECTRIC Unit Notes 17.May.2001 16 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module AVERAGE SUPPLY CURRENT from Vdd (Ta=0 ~ 70°C , Vdd = VddQ = 2.5 ± 0.2V, Vss = VssQ = 0V, Output Open, unless otherwise noted) Sy m bol Limits(max) Parameter/Test Conditions Unit Notes -75 -10 IDD0 OPERATING CURRENT: One Bank(Discrete); Activ e-Precharge; t RC = t RC MIN; t CK = t CK MIN; DQ, DM and DQS inputs changing twice per clock cy c le; address and control inputs changing once per clock cy c le 480 460 mA IDD1 OPERATING CURRENT: One Bank(Discrete); Activ e-Read-Precharge; Burst = 2; t RC = t RC MIN; CL = 2.5; t CK = t CK MIN; IOUT= 0 mA;Address and control inputs changing once per clock cy c le 540 520 mA IDD2P PRECHARGE POWER-DOWN STANDBY CURRENT: All banks idle; power-down mode; CKE VIL (MAX); t CK = t CK MIN 80 80 mA IDD2N IDLE STANDBY CURRENT: /CS > VIH (MIN); All banks idle; CKE > VIH (MIN); t CK = t CK MIN; Address and other control inputs changing once per clock cy c le 160 160 mA IDD3P ACTIVE POWER-DOWN STANDBY CURRENT: One bank activ e; power-down mode; CKE VIL (MAX); t CK = t CK MIN 160 160 mA IDD3N ACTIVE STANDBY CURRENT: /CS > VIH (MIN); CKE > VIH (MIN); One bank; Activ e-Precharge; t RC = t RAS MAX; t CK = t CK MIN; DQ,DM and DQS inputs changing twice per clock cy c le; address and other control inputs changing once per clock cy c le 300 280 mA IDD4R OPERATING CURRENT: Burst = 2; Reads; Continuous burst;One bank activ e(Discrete); Address and control inputs changing once per clock cy c le; CL = 2.5; t CK = t CK MIN; IOUT = 0 mA 840 800 mA OPERATING CURRENT: Burst = 2; Writes; Continuous burst; One bank activ e(Discrete); Address and control inputs changing once per IDD4W clock cy c le; CL = 2.5; t CK = t CK MIN; DQ, DM and DQS inputs changing twice per clock cy c le 840 800 mA IDD5 AUTO REFRESH CURRENT: t RC = t RFC (MIN) 760 720 mA IDD6 SELF REFRESH CURRENT: CKE 12 12 mA 0.2V 9 AC OPERATING CONDITIONS AND CHARACTERISTICS (Ta=0 ~ 70°C Symbol , Vdd = VddQ = 2.5 ± 0.2V, Vss =VssQ= 0V, unless otherwise noted) Parameter/Test Conditions VIH(AC) High-Level Input Voltage (AC) Limits Min. Vref + 0.35 VIL(AC) Low-Level Input Voltage (AC) Ii V Vdd + 0.6 V 7 0.5*Vdd-0.2 0.5*Vdd+0.2 8 Off-state Output Current /Q floating Vo=0~V DDQ -5 5 V µA Input Current / VIN=0 ~ VddQ -8 8 µA VIX(AC) Input Crossing Point Voltage, CLK and /CLK MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 0.7 Unit Notes V Vref - 0.35 VID(AC) Input Differential Voltage, CLK and /CLK IOZ Max. 17.May.2001 17 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module AC TIMING REQUIREMENTS (Component Level) (Ta=0 ~ 70°C , Vdd = VddQ = 2.5 ± 0.2V, Vss = VssQ = 0V, unless otherwise noted) AC Characteristics Sy m bol -75 -10 Min. Max. Min. Max. Unit DQ Output Valid data delay time f rom CLK//CLK -0.75 +0.75 -0.8 +0.8 ns tDQSCK DQ Output Valid data delay time f rom CLK//CLK -0.75 +0.75 -0.8 +0.8 ns tAC Parameter tCH CLK High lev el width 0.45 0.55 0.45 0.55 tCK tCL CLK Low lev el width 0.45 0.55 0.45 0.55 tCK CL=2.5 7.5 15 8 15 ns tCK CLK cy c le time CL=2 10 15 10 15 ns Notes tDS Input Setup time (DQ,DM) 0.5 0.6 ns tDH Input Hold time(DQ,DM) 0.5 0.6 ns tDIPW DQ and DM input pulse width (f or each input) 1.75 2 ns tHZ Data-out-high impedance time f rom CLK//CLK -0.75 +0.75 -0.8 +0.8 ns 14 tLZ Data-out-low impedance time f rom CLK//CLK -0.75 +0.75 -0.8 +0.8 ns 14 +0.6 ns tDQSQ DQ Valid data delay time f rom DQS +0.5 tCLmin or tCHmin tCLmin or tCHmin ns Output DQS v alid window tHP0.75 tHP-1.0 ns tDQSS Write command to f irst DQS latching transition 0.75 tDQSH DQS input High lev el width 0.35 0.35 tCK tDQSL DQS input Low lev el width 0.35 0.35 tCK tDSS DQS f alling edge to CLK setup time 0.2 0.2 tCK tDSH DQS f alling edge hold time f rom CLK 0.2 0.2 tCK tMRD Mode Register Set command cy c le time 15 15 ns 0 0 ns 16 tCK 15 tHP Clock half period tQH tWPRES Write preamble setup time 1.25 0.75 1.25 tCK tWPST Write postamble 0.4 tWPRE Write preamble 0.25 0.25 tCK tIS Input Setup time (address and control) 0.9 1.1 ns 19 tIH Input Hold time (address and control) 0.9 1.1 ns 19 tRPST Read postamble 0.4 0.6 0.4 0.6 tCK tRPRE Read preamble 0.9 1.1 0.9 1.1 tCK MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 0.6 0.4 0.6 17.May.2001 18 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module AC TIMING REQUIREMENTS(Continues) (Ta=0 ~ 70°C , Vdd = VddQ = 2.5 ± 0.2V, Vss = VssQ = 0V, unless otherwise noted) AC Characteristics -75 Parameter Symbol -10 Min. Max. Min. Max. 120,000 50 120,000 Unit Notes tRAS Row Active time 45 tRC Row Cycle time(operation) 65 70 ns tRFC Auto Ref. to Active/Auto Ref. command period 75 80 ns tRCD Row to Column Delay 20 20 ns tRP Row Precharge time 20 20 ns tRRD Act to Act Delay time 15 15 ns tWR Write Recovery time 15 15 ns tDAL Auto Precharge write recovery + precharge time 35 35 ns tWT R Internal Write to Read Command Delay 1 1 tCK tXSNR Exit Self Ref. to non-Read command 75 80 ns tXSRD Exit Self Ref. to -Read command 200 200 tCK tXPNR Exit Power down to command 1 1 tCK tXPRD Exit Power down to -Read command 1 1 tCK 18 tREFI Average Periodic Refresh interval 15.6 15.6 us 17 ns Output Load Condition (f or component measurement) VREF DQS V TT =V REF DQ VREF 50ohm VO U Zo=50 ohm 30pF MIT-DS-0419-0.1 V REF Output Timing Measurement Reference Point MITSUBISHI ELECTRIC 17.May.2001 19 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module Notes 1. All voltages referenced to Vss. 2. Tests for AC timing, IDD, and electrical, AC and DC characteristics, may be conducted at nominal reference/supply voltage levels, but the related specifications and device operation are guaranteed for the full voltage range specified. 3. AC timing and IDD tests may use a VIL to VIH swing of up to 1.5V in the test environment, but input timing is still referenced to VREF (or to the crossing point for CK//CK), and parameter specifications are guaranteed for the specified AC input levels under normal use conditions. The minimum slew rate for the input signals is 1V/ns in the range between VIL(AC) and VIH(AC). 4. The AC and DC input level specifications are as defined in the SSTL_2 Standard (i.e. the receiver will effectively switch as a result of the signal crossing the AC input level, and will remain in that state as long as the signal does not ring back above (below) the DC input LOW (HIGH) level. 5. VREF is expected to be equal to 0.5*VddQ of the transmitting device, and to track variations in the DC level of the same. Peak-to-peak noise on VREF may not exceed +/-2% of the DC value. 6. VTT is not applied directly to the device. VTT is a system supply for signal termination resistors, is expected to be set equal to VREF, and must track variations in the DC level of VREF. 7. VID is the magnitude of the difference between the input level on CLK and the input level on /CLK. 8. The value of VIX is expected to equal 0.5*VddQ of the transmitting device and must track variations in the DC level of the same. 9. Enables on-chip refresh and address counters. 10. IDD specification are tested after the device is properly initialized. 11. This parameter is sampled. VddQ = +2.5V+/-0.2V, Vdd = +2.5V+/-0.2V, f =100MHz, Ta = 25 C , VOUT(DC)= VddQ/2, VOUT(PEAK TO PEAK) = 25mV, DM inputs are grouped with I/O pins - reflecting the fact that they are matched in laoding (to faciliate trace matching at the board level). 12. The CLK//CLK input reference level (for timing referenced to CLK//CLK) is the point at which CLK and /CLK cross; the input reference level for signals other than CLK//CLK, is VREF. 13. Inputs are not recognized as valid until VREF stabilized. Exception: during the period before VREF stabilizes, CKE=< 0.3VddQ is recognized as LOW. 14. t HZ and tLZ transitions occur in the same access time windows as valid data transitions. These parameters are not referenced to a specific voltage level, but specify when the device output is no longer driving (HZ), or begins driving (LZ). 15. The maximum limit for this parameter is not a device limit. The device will operate with a greater value for this parameter, but system performance (bus turnaround) will degrade accordingly. 16. The specific requirement is that DQS be valid (HIGH, LOW, or at some point on a valid transition) on or before this CLK edge. A valid transition is defined as monotonic, and meeting the input slew rate specifications of the device. When no writes were previously in progress on the bus, DQS will be transitioning from High-Z to logic LOW. If a previous write was in progress, DQS could be HIGH, LOW, or transitioning from HIGH to LOW at this time, depending on tDQSS. 17. A maximum of eight AUTO REFRESH commands can be posted to any given DDR SDRAM device. 18. tXPRD should be 200 tCLK in the condition of the unstable CLK operation during the power down mode. 19. For command/address and CLK & /CLK slew rate >1.0V/ns. O MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 20 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module (Component Level) Read Operation tCK tCH tCL /CLK CLK tIS Cmd & Add. tIH Valid Data tDQSCK VREF tRPST tRPRE DQS tDQSQ tQH tAC DQ Write Operation / tDQSS=max. /CLK CLK tDQSS DQS tWPST tDSS tWPRES tDQSL tWPRE tDQSH tDS tDH DQ Write Operation / tDQSS=min. /CLK CLK DQS tDSH tDQSS tWPST tWPRES tWPRE tDQSL tDS tDQSH tDH DQ MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 21 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module OPERATIONAL DESCRIPTION (Component Level) BANK ACTIVATE The DDR SDRAM has four independent banks. Each bank is activated by the ACT command with the bank addresses (BA0,1). A row is indicated by the row address A11-0. The minimum activation interval between one bank and the other bank is tRRD. M aximum 2 ACT commands are allowed within tRC,although the number of banks which are active concurrently is not limited. PRECHARGE The PRE command deactivates the bank indicated by BA0,1. When multiple banks are active, the precharge all command (PREA,PRE+A10=H) is available to deactivate them at the same time. After tRP from the precharge, an ACT command to the same bank can be issued. Bank Activation and Precharge All (BL=8, CL=2) /CLK CLK 2 ACT command / tRCmin Command ACT tRRD A0-9,11 Xa tRCmin ACT READ PRE tRAS Xb ACT tRP Xb Y tRCD BL/2 A10 Xa Xb 0 BA0,1 00 01 00 Xb 1 01 DQS DQ Qa Qa Qa Qa Qa Qa Qa Qa Precharge all A precharge command can be issued at BL/2 from a read command without data loss. MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 22 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module READ After tRCD from the bank activation, a READ command can be issued. 1st Output data is available after the /CAS Latency from the READ, followed by (BL-1) consecutive data when the Burst Length is BL. The start address is specified by A11,A8-A0, and the address sequence of burst data is defined by the Burst Type. A READ command may be applied to any active bank, so the row precharge time (tRP) can be hidden behind continuous output data by interleaving the multiple banks. When A10 is high at a READ command, the auto-precharge(READA) is performed. Any command(READ,WRITE,PRE,ACT) to the same bank is inhibited till the internal precharge is complete. The internal precharge starts at BL/2 after READA. The next ACT command can be issued after (BL/2+tRP) from the previous READA. Multi Bank Interleaving READ (BL=8, CL=2) /CLK CLK Command ACT READ ACT READ PRE tRCD A0-9,11 Xa Y Xb Y A10 Xa 0 Xb 0 0 BA0,1 00 00 10 10 00 DQS DQ Qa Qa Qa Qa Qa Qa Qa Qa Qb Qb Qb Qb Qb Qb Qb Qb Burst Length /CAS latency MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 23 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module READ with Auto-Precharge (BL=8, CL=2) /CLK CLK Command BL/2 + tRP ACT READ ACT BL/2 tRCD tRP A0-9,11 Xa Y Xb A10 Xa 1 Xb BA0,1 00 00 00 DQS Qa DQ Qa Qa Qa Qa Qa Qa Qa Internal precharge start READ Auto-Precharge Timing (BL=8) /CLK CLK Command ACT READ BL/2 CL=2.5 DQ CL=2 DQ Qa Qa Qa Qa Qa Qa Qa Qa Qa Qa Qa Qa Qa Qa Qa Qa Internal Precharge Start Timing MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 24 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module WRITE After tRCD from the bank activation, a WRITE command can be issued. 1st input data is set from the WRITE command with data strobe input, following (BL-1) data are written into RAM , when the Burst Length is BL. The start address is specified by A11,A8-A0, and the address sequence of burst data is defined by the Burst Type. A WRITE command may be applied to any active bank, so the row precharge time (tRP) can be hidden behind continuous input data by interleaving the multiple banks. From the last data to the PRE command, the write recovery time (tWRP) is required. When A10 is high at a WRITE command, the auto-precharge(WRITEA) is performed. Any command(READ,WRITE,PRE,ACT) to the same bank is inhibited till the internal precharge is complete. The next ACT command can be issued after tDAL from the last input data cycle. Multi Bank Interleaving WRITE (BL=8) /CLK CLK Command ACT WRITE WRITE ACT PRE PRE tRCD tRCD A0-9,11 Xa Ya Xb Yb A10 Xa Xa 0 Xb 0 0 0 BA0,1 00 00 10 10 00 10 DQS Da0 Da1 Da2 Da3 Da4 Da5 DQ Da6 Da7 Db0 Db1 Db2 Db3 Db4 Db5 Db6 Db7 WRITE with Auto-Precharge (BL=8) /CLK CLK Command ACT WRITE ACT tDAL tRCD A0-9,11 Xa Y Xb A10 Xa 1 Xb BA0,1 00 00 00 DQS DQ MIT-DS-0419-0.1 Da0 Da1 Da2 Da3 Da4 Da5 Da6 Da7 MITSUBISHI ELECTRIC 17.May.2001 25 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module BURST INTERRUPTION [Read Interrupted by Read] Burst read operation can be interrupted by new read of any bank. Random column access is allowed. READ to READ interval is minimum 1CLK. Read Interrupted by Read (BL=8, CL=2) /CLK CLK Command READ READ A0-9,11 A10 BA0,1 READ READ Yi Yj Yk Yl 0 0 0 0 00 00 10 01 DQS Qai0 Qai1 Qaj0 Qaj1 Qaj2 Qaj3 Q a k Q a k Q a k DQ Q a k Q a k Q a k Qal0 Qal1 Qal2 Qal3 Qal4 Qal5 Qal6 Qal7 [Read Interrupted by precharge] Burst read operation can be interrupted by precharge of the same bank. READ to PRE interval is minimum 1 CLK. A PRE command to output disable latency is equivalent to the /CAS Latency. As a result, READ to PRE interval determines valid data length to be output. The figure below shows examples of BL=8. Read Interrupted by Precharge (BL=8) /CLK CLK Command READ PRE DQS DQ Command CL=2.5 READ Q0 Q1 Q2 Q3 Q0 Q1 Q2 Q3 Q0 Q1 Q4 Q5 PRE DQS DQ Command READ PRE DQS DQ MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 26 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module Read Interrupted by Precharge (BL=8) /CLK CLK Command READ PRE DQS Q0 DQ Command CL=2.0 READ Q1 Q2 Q3 Q0 Q1 Q2 Q3 Q0 Q1 Q4 Q5 PRE DQS DQ Command READ PRE DQS DQ MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 27 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module [Read Interrupted by Burst Stop] Burst read operation can be interrupted by a burst stop command(TERM ). READ to TERM interval is minimum 1 CLK. A TERM command to output disable latency is equivalent to the /CAS Latency. As a result, READ to TERM interval determines valid data length to be output. The figure below shows examples of BL=8. Read Interrupted by TERM (BL=8) /CLK CLK Command READ TERM DQS DQ Command CL=2.5 READ Q0 Q1 Q2 Q3 Q0 Q1 Q2 Q3 Q0 Q1 Q4 Q4 Q5 TERM DQS DQ Command READ TERM DQS DQ Command READ TERM DQS Q0 DQ Command CL=2.0 READ Q1 Q2 Q3 Q0 Q1 Q2 Q3 Q0 Q1 Q5 TERM DQS DQ Command READ TERM DQS DQ MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 28 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module [Read Interrupted by Write with TERM] Read Interrupted by TERM (BL=8) /CLK CLK Command CL=2.5 READ TERM DQS Q0 DQ Command CL=2.0 READ Q1 TERM Q2 Q3 D0 D1 D2 D3 D4 D5 D2 D3 D4 D5 D6 D7 WRITE DQS DQ MIT-DS-0419-0.1 WRITE Q0 Q1 MITSUBISHI ELECTRIC Q2 Q3 D0 D1 17.May.2001 29 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module [Write interrupted by Write] Burst write operation can be interrupted by write of any bank. Random column access is allowed. WRITE to WRITE interval is minimum 1 CLK. Write Interrupted by Write (BL=8) /CLK CLK Command A0-9,11 A10 BA0,1 WRITE WRITE WRITE WRITE Yi Yj Yk Yl 0 0 0 0 00 00 10 00 DQS Dai0 DQ Dai1 Daj0 Daj1 Daj2 Daj3 D a k 0 D a k 1 D a k 2 D a k 3 D a k 4 D a k 5 Dal0 Dal1 Dal2 Dal3 Dal4 Dal5 Dal6 Dal7 [Write interrupted by Read] Burst write operation can be interrupted by read of the same or the other bank. Random column access is allowed. Internal WRITE to READ command interval(tWTR) is minimum 1 CLK. The input data on DQ at the interrupting READ cycle is "don't care". tWTR is referenced from the first positive edge after the last data input. Write Interrupted by Read (BL=8, CL=2.5) /CLK CLK Command WRITE READ Yi Yj A10 0 0 BA0,1 00 00 A0-9,11 DM tWT R QS DQ MIT-DS-0419-0.1 Dai0 Dai1 Qaj0 Qaj1 Qaj2 Qaj3 Qaj4 Qaj5 Qaj6 Qaj7 MITSUBISHI ELECTRIC 17.May.2001 30 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module [Write interrupted by Precharge] Burst write operation can be interrupted by precharge of the same or all bank. Random column access is allowed. tWR is referenced from the first positive CLK edge after the last data input. Write Interrupted by Precharge (BL=8, CL=2.5) /CLK CLK Command A0-9,11 WRITE PRE Yi A10 0 BA0,1 00 00 tWR DM QS DQ MIT-DS-0419-0.1 Dai0 Dai1 MITSUBISHI ELECTRIC 17.May.2001 31 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module [Initialize and Mode Register sets] /CLK CLK Command NOP PRE A0-9,11 A10 1 BA0,1 EMRS MRS Code Code Code Code 10 00 PRE AR AR MRS ACT Xa 1 Code Xa 00 Xa DQS DQ tMRD Extended Mode Register Set tMRD tRP tRFC tRFC tMRD Mode Register Set, Reset DLL [AUTO REFRESH] Single cycle of auto-refresh is initiated with a REFA(/CS=/RAS=/CAS=L,/WE=CKE=H) command. The refresh address is generated internally. 4096 REFA cycles within 64ms refresh 128M bits memory cells. The auto-refresh is performed on 4 banks concurrently. Before performing an auto refresh, all banks must be in the idle state. Auto-refresh to auto-refresh interval is minimum tRFC . Any command must not be supplied to the device before tRFC from the REFA command. Auto-Refresh /CLK CLK /CS NOP or DESELECT /RAS /CAS /WE CKE tRFC A0-11 BA0,1 Auto Refresh on All Banks MIT-DS-0419-0.1 Auto Refresh on All Banks MITSUBISHI ELECTRIC 17.May.2001 32 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module [S ELF REFRESH] Self -refresh mode is entered by issuing a REFS command (/CS=/RAS=/CAS=L,/WE=H,CKE=L). Once the self-refresh is initiated, it is maintained as long as CKE is kept low. During the self-refresh mode, CKE is asynchronous and the only enable input, all other inputs including CLK are disabled and ignored, so that power consumption due to synchronous inputs is saved. To exit the self-refresh, supplying stable CLK inputs, asserting DESEL or NOP command and then asserting CKE for longer than tXSNR/tXSRD. Self-Refresh /CLK CLK /CS /RAS /CAS /WE CKE A0-11 BA0,1 X Y X Y tXSRD tXSNR Self Refresh Exit MIT-DS-0419-0.1 MITSUBISHI ELECTRIC Act Read 17.May.2001 33 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module [Asynchronous S ELF REFRESH] Asynchronous Self -refresh mode is entered by CKE=L within 2 tCLK after issuing a REFA command (/CS=/RAS=/CAS=L,/WE=H). Once the self-refresh is initiated, it is maintained as long as CKE is kept low. During the self-refresh mode, CKE is asynchronous and the only enable input, all other inputs including CLK are disabled and ignored, so that power consumption due to synchronous inputs is saved. To exit the self-refresh, supplying stable CLK inputs, asserting DESEL or NOP command and then asserting CKE for longer than tXSNR/tXSRD. Asynchronous Self-Refresh /CLK CLK /CS /RAS /CAS /WE CKE max 2 tCLK A0-11 BA0,1 tXSNR Self Refresh Exit MIT-DS-0419-0.1 MITSUBISHI ELECTRIC Act 17.May.2001 34 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module [Power DOWN] The purpose of CLK suspend is power down. CKE is synchronous input except during the self-refresh mode. A command at cycle is ignored. From CKE=H to normal function, DLL recovery time is NOT required in the condition of the stable CLK operation during the power down mode. Power Down by CKE /CLK CLK Standby Power Down CKE Command PRE NOP NOP tXPNR/ tXPRD Active Power Down CKE Command Valid ACT NOP Valid NOP [DM CONTROL] DM is defined as the data mask for writes. During writes,DM masks input data word by word. DM to write mask latency is 0. DM Function(BL=8,CL=2) /CLK CLK Command Write READ Don't Care DM DQS DQ D0 D1 D3 D4 D5 D6 D7 Q0 Q1 Q2 Q3 Q4 Q5 Q6 masked by DM=H MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 35 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module Serial Presence Detect Table I Byte Function described 0 Number of Serial PD Bytes Written during Production SPD enrty data 128 256 Bytes SPD DATA(hex) 80 1 Total # bytes of SPD memory device 2 Fundamental memory type 3 # Row Addresses on this assembly 4 # Column Addresses on this assembly 5 # Module Banks on this assembly 1BANK 01 6 Data Width of this assembly... x64 40 7 ... Data Width continuation 0 00 Voltage interface standard of this assembly SSTL2.5V 04 7.5ns 75 -10 8.0ns 80 -75 +0.75ns 75 -10 +0.8 ns 80 8 9 SDRAM Cycletime at Max. Supported CAS Latency (CL). Cycle time for CL=2.5 10 SDRAM Access from Clock tAC for CL=2.5 11 Refresh Rate/Type 13 SDRAM width,Primary DRAM 15 16 17 -75 9 09 x16 Error Checking SDRAM data width Burst Lengths Supported Number of Device Banks 07 0C 15.625uS/SR MIimum Clock Delay, Random Column Access 08 12 None-parity,Non-ECC DIMM Configuration type (Non-parity,Parity,ECC) 12 14 SDRAM DDR 00 80 10 N/A 00 1 clock 01 2, 4, 8 0E 4bank 2.0, 2.5 04 0C 18 CAS# Latency 19 CS# Latency 0 01 WE Latency 1 02 20 21 SDRAM Module Attributes 22 SDRAM Device Attributes:General 23 SDRAM Cycle time(2nd highest CAS latency) Cycle time for CL=2 24 25 26 SDRAM Access form Clock(2nd highest CAS latency) tAC for CL=2 Differential Clock 20 VDD + 0.2V 00 -75 10ns A0 -10 10ns A0 -75 +0.75ns 75 -10 +0.8ns 80 -75 Undefined 00 -10 Undefined 00 -75 Undefined 00 -10 Undefined 00 SDRAM Cycle time(3rd highest CAS latency) SDRAM Access form Clock(3rd highest CAS latency) 27 Minimum Row Precharge Time (tRP) 20ns 50 28 Minimum Row Active to Row Active Delay (tRRD) 15ns 3C 29 RAS to CAS Delay Minv (tRCD) 30 Active to Precharge Min (tRAS) MIT-DS-0419-0.1 20ns 50 -75 45ns 2D -10 50ns 32 MITSUBISHI ELECTRIC 17.May.2001 36 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module Serial Presence Detect Table II 31 32 33 34 35 Density of each bank on module Command and Address signal input setup time Command and Address signal input hold time Data signal input setup time Data signal input hold time 36-61 Superset Information (may be used in future) 62 SPD Revision 63 Checksum for bytes 0-62 64-71 Manufactures Jedec ID code per JEP-108E 10 0.9nS 90 -10 1.1nS B0 -75 0.9nS 90 -10 1.1nS B0 -75 0.5nS 50 -10 0.6nS 60 -75 0.5nS 50 -10 0.6nS 60 option 00 0 00 Check sum for -75 93 Check sum for -10 19 MITSUBISHI 1CFFFFFFFFFFFFFF Manufacturing location Manufacturing Location Manufactures Part Number MH8D64AKQC-75 4D4838443634414B51432D37352020202020 MH8D64AKQC-10 4D4838443634414B51432D31302020202020 72 73-90 64MByte -75 XX 91-92 Revision Code PCB revision rrrr 93-94 Manufacturing date year/week code yyww serial number ssssssss Undefined 00 Undefined 00 95-98 99-127 128-255 MIT-DS-0419-0.1 Assembly Serial Number Reserved Open for Customer Use MITSUBISHI ELECTRIC 17.May.2001 37 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module EEPROM Components A.C. and D.C. Characteristics Symbol VCC VSS VIH Parameter VIL Supply Voltage Supply Voltage Input High Voltage Input Low Voltage VOL Output Low Voltage Limits Typ. Min. 2.2 0 Vccx0.7 -1 0 Max. 5.5 Units 0 Vcc+0.5 Vccx0.3 V V V V 0.4 V EEPROM A.C.Timing Parameters (Ta=0 to 70°C ) Symbol Limits Min. Max. 100 Parameter SCL Clock Frequency fSCL TI TAA 200 3.5 Noise Supression Time Constant at SCL, SDA inputs SCL Low to SDA Data Out Valid TBUF Time the Bus Must Be Free before a New Transmission Can Start Units KHz ns us 4.7 us Start Condition Hold Time 4.0 us Clock Low Time 4.7 us THIGH Clock High Time 4.0 us TSU:STA Start Condition Setup Time 4.7 us THD:DAT Data In Hold Time 0 us TSU:DAT Data In Setup Time 250 ns TR SDA and SCL Rise Time 1 us TF SDA and SCL Fall Time 300 ns TSU:STO Stop Condition Setup Time 4.0 TDH Data Out Hold Time 100 TWR Write Cycle Time THD:STA TLOW us ns 10 ms tWR is the time from a valid stop condition of a write sequence to the end of the EEPROM internal erase/program cycle. TF T HIGH TR T LOW SCL T SU:STO T SU:STA T HD:DAT T HD:STA T SU:DAT SDA IN T AA T DH T BUF SDA OUT MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 38 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module OUTLINE 31.75 20.00 4.00 6.00 4.00 0.25Max 2.55 MIT-DS-0419-0.1 MITSUBISHI ELECTRIC Unit.mm 17.May.2001 39 Preliminary Spec. MITSUBISHI LSIs Some contents are subject to change without notice. MH8D64AKQC-75,-10 536,870,912-BIT (8,388,608-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module Keep safety first in your circuit designs! Mitsubishi Electric Corporation puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap. 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Please contact Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor product distributor when considering the use of a product contained herein for any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use. 6.The prior written approval of Mitsubishi Electric Corporation is necessary to reprint or reproduce in whole or in part these materials. 7.If these products or technologies are subject to the Japanese export control restrictions, they must be exported under a license from the Japanese government and cannot be imported into a country other than the approved destination. Any diversion or reexport contrary to the export control laws and regulations of Japan and/or the country of destination is prohibited. 8.Please contact Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor product distributor for further details on these materials or the products contained therein. MIT-DS-0419-0.1 MITSUBISHI ELECTRIC 17.May.2001 40