8Mx64 bits PC133 SDRAM SO DIMM based on 8Mx16 SDRAM with LVTTL, 4 banks & 4K Refresh HYM71V8M635A(L)T6 Series DESCRIPTION The Hynix HYM71V8M635AT6 Series are 8Mx64bits Synchronous DRAM Modules. The modules are composed of four 8Mx16bits CMOS Synchronous DRAMs in 400mil 54pin TSOP-II package, one 2Kbit EEPROM in 8pin TSSOP package on a 168pin glass-epoxy printed circuit board. Two 0.33uF and one 0.1uF decoupling capacitors per each SDRAM are mounted on the PCB. The Hynix HYM71V8M635AT6 Series are Dual In-line Memory Modules suitable for easy interchange and addition of 64Mbytes memory. The Hynix HYM71V8M635AT6 Series are fully synchronous operation referenced to the positive edge of the clock . All inputs and outputs are synchronized with the rising edge of the clock input. The data paths are internally pipelined to achieve very high bandwidth. FEATURES • PC133/PC100MHz support • SDRAM internal banks : four banks • 144pin SDRAM SO DIMM • Module bank : one physical bank • Serial Presence Detect with EEPROM • Auto refresh and self refresh • 1.00” (25.40mm) Height PCB with double sided components • 4096 refresh cycles / 64ms • Programmable Burst Length and Burst Type • Single 3.3±0.3V power supply • All device pins are compatible with LVTTL interface • Data mask function by DQM - 1, 2, 4 or 8 or Full page for Sequential Burst - 1, 2, 4 or 8 for Interleave Burst • Programmable CAS Latency ; 2, 3 Clocks ORDERING INFORMATION Part No. Clock Frequency Internal Bank Ref. Power SDRAM Package Plating TSOP-II Gold HYM71V8M635AT6-K Normal HYM71V8M635AT6-H 133MHz 4 Banks 4K HYM71V8M635ALT6-K Low Power HYM71V8M635ALT6-H This document is a general product description and is subject to change without notice. Hyundai Electronics does not assume any responsibility for use of circuits described. No patent licenses are implied. Rev. 1.2/Apr. 01 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series PIN DESCRIPTION PIN PIN NAME DESCRIPTION CK0, CK1 Clock Inputs The system clock input. All other inputs are registered to the SDRAM on the rising edge of CLK CKE0 Clock Enable Controls internal clock signal and when deactivated, the SDRAM will be one of the states among power down, suspend or self refresh /S0 Chip Select Enables or disables all inputs except CK, CKE and DQM BA0, BA1 SDRAM Bank Address Selects bank to be activated during /RAS activity Selects bank to be read/written during /CAS activity A0 ~ A11 Address Row Address : RA0 ~ RA11, Column Address : CA0 ~ CA8 Auto-precharge flag : A10 /RAS, /CAS, /WE Row Address Strobe, Column Address Strobe, Write Enable /RAS, /CAS and /WE define the operation Refer function truth table for details DQM0~DQM7 Data Input/Output Mask Controls output buffers in read mode and masks input data in write mode DQ0 ~ DQ63 Data Input/Output Multiplexed data input / output pin VCC Power Supply (3.3V) Power supply for internal circuits and input buffers VSS Ground Ground SCL SPD Clock Input Serial Presence Detect Clock input SDA SPD Data Input/Output Serial Presence Detect Data input/output SA0~2 SPD Address Input Serial Presence Detect Address Input WP Write Protect for SPD Write Protect for Serial Presence Detect on DIMM NC No Connection No connection Rev. 1.2/Apr. 01 3 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series PIN ASSIGNMENTS FRONT SIDE BACK SIDE PIN NO. NAME PIN NO. 1 VSS 3 DQ0 5 7 FRONT SIDE BACK SIDE NAME PIN NO. NAME PIN NO. 2 VSS 71 NC 72 NC 4 DQ32 73 NC 74 *CK1 DQ1 6 DQ33 75 VSS 76 VSS DQ2 8 DQ34 77 NC 78 NC 9 DQ3 10 DQ35 79 NC 80 NC 11 VCC 12 VCC 81 VCC 82 VCC 13 DQ4 14 DQ36 83 DQ16 84 DQ48 15 DQ5 16 DQ37 85 DQ17 86 DQ49 17 DQ6 18 DQ38 87 DQ18 88 DQ50 19 DQ7 20 DQ39 89 DQ19 90 DQ51 21 VSS 22 VSS 91 VSS 92 VSS 23 DQM0 24 DQM4 93 DQ20 94 DQ52 25 DQM1 26 DQM5 95 DQ21 96 DQ53 27 VCC 28 VCC 97 DQ22 98 DQ54 29 A0 30 A3 99 DQ23 100 DQ55 31 A1 32 A4 101 VCC 102 VCC 33 A2 34 A5 103 A6 104 A7 35 VSS 36 VSS 105 A8 106 BA0 37 DQ8 38 DQ40 107 VSS 108 VSS 39 DQ9 40 DQ41 109 A9 110 BA1 41 DQ10 42 DQ42 111 A10/AP 112 A11 43 DQ11 44 DQ43 113 VCC 114 VCC 45 VCC 46 VCC 115 DQM2 116 DQM6 47 DQ12 48 DQ44 117 DQM3 118 DQM7 49 DQ13 50 DQ45 119 VSS 120 VSS 51 DQ14 52 DQ46 121 DQ24 122 DQ56 53 DQ15 54 DQ47 123 DQ25 124 DQ57 55 VSS 56 VSS 125 DQ26 126 DQ58 57 NC 58 NC 127 DQ27 128 DQ59 59 NC 60 NC 129 VCC 130 VCC 131 DQ28 132 DQ60 DQ61 Voltage Key NAME 133 DQ29 134 61 CK0 62 CKE0 135 DQ30 136 DQ62 63 VCC 64 VCC 137 DQ31 138 DQ63 65 /RAS 66 /CAS 139 VSS 140 VSS 67 /WE 68 NC 141 SDA 142 SCL 69 /S0 70 NC 143 VCC 144 VCC Note : * CK1 are connected with termination R/C (Refer to the Block Diagram) Rev. 1.2/Apr. 01 4 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series BLOCK DIAGRAM S0 DQMB0 DQ 0 DQ 1 DQ 2 DQ 3 DQ 4 DQ 5 DQ 6 DQ 7 DQML DQ 0 DQ 1 DQ 2 DQ 3 DQ 4 DQ 5 DQ 6 DQ 7 DQMB1 DQ 32 DQ 33 DQ 34 DQ 35 DQ 36 DQ 37 DQ 38 DQ 39 DQMU DQMB2 DQ 16 DQ17 DQ 18 DQ 19 DQ 20 DQ 21 DQ 22 DQ 23 DQML DQ 0 DQ 1 DQ 2 DQ 3 DQ 4 DQ 5 DQ 6 DQ 7 CS U0 DQ 8 DQ 9 DQ 10 DQ 11 DQ 12 DQ 13 DQ 14 DQ 15 DQMU DQMB3 DQ 48 DQ 49 DQ 50 DQ 51 DQ 52 DQ53 DQ 54 DQ 55 CS U1 U0 - U3 RAS U0 - U3 CAS U0 - U3 WE U0 - U3 CKE0 U0 - U3 DQML DQ 0 DQ 1 DQ 2 DQ 3 DQ 4 DQ 5 DQ 6 DQ 7 DQMB5 DQ 40 DQ 41 DQ 42 DQ 43 DQ 44 DQ 45 DQ 46 DQ 47 DQMU DQMB6 DQ 24 DQ25 DQ26 DQ 27 DQ 28 DQ 29 DQ 30 DQ 31 DQML DQ 0 DQ 1 DQ 2 DQ 3 DQ 4 DQ 5 DQ 6 DQ 7 CK0 CS U3 DQ 8 DQ 9 DQ 10 DQ 11 DQ 12 DQ 13 DQ 14 DQ 15 4 SDRAMS 10ohm CK1 10pF U4 SERIAL PD A0 VCC Capacitor two 0.33uF and one 0.1uF per SDRAM Rev. 1.2/Apr. 01 U2 DQMU SCL VSS CS DQ 8 DQ 9 DQ 10 DQ 11 DQ 12 DQ 13 DQ 14 DQ 15 DQMB7 DQ 56 DQ 57 DQ 58 DQ 59 DQ 60 DQ 61 DQ 62 DQ 63 DQ 8 DQ 9 DQ 10 DQ 11 DQ 12 DQ 13 DQ 14 DQ 15 A0 ~ A11, BA0,1 DQMB4 DQ 8 DQ 9 DQ 10 DQ 11 DQ 12 DQ 13 DQ 14 DQ 15 A1 SDA A2 U0 ~ U3 U0 ~ U3 VSS 5 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series SERIAL PRESENCE DETECT BYTE NUMBER FUNCTION DESCRIPTION FUNCTION VALUE -H -K -H -K BYTE0 # of Bytes Written into Serial Memory at Module Manufacturer 128 Bytes 80h BYTE1 Total # of Bytes of SPD Memory Device 256 Bytes 08h BYTE2 Fundamental Memory Type BYTE3 # of Row Addresses on This Assembly SDRAM 04h 12 0Ch BYTE4 # of Column Addresses on This Assembly 9 09h BYTE5 # of Module Banks on This Assembly 1 Bank 01h BYTE6 Data Width of This Assembly 64 Bits 40h BYTE7 Data Width of This Assembly (Continued) - 00h BYTE8 Voltage Interface Standard of This Assembly BYTE9 SDRAM Cycle Time @/CAS Latency=3 7.5ns 7.5ns 75h BYTE10 Access Time from Clock @/CAS Latency=3 5.4ns 5.4ns 54h BYTE11 DIMM Configuration Type BYTE12 Refresh Rate/Type BYTE13 Primary SDRAM Width BYTE14 Error Checking SDRAM Width BYTE15 Minimum Clock Delay Back to Back Random Column Address LVTTL 1 01h 75h 54h None 00h 15.625us / Self Refresh Supported 80h x16 10h None 00h tCCD = 1 CLK 01h 1,2,4,8,Full Page 8Fh 4 Banks 04h /CAS Latency=2,3 06h BYTE16 Burst Lenth Supported BYTE17 # of Banks on Each SDRAM Device BYTE18 SDRAM Device Attributes, /CAS Lataency BYTE19 SDRAM Device Attributes, /CS Lataency /CS Latency=0 01h BYTE20 SDRAM Device Attributes, /WE Lataency /WE Latency=0 01h BYTE21 SDRAM Module Attributes Neither Buffered nor Registered 00h +/- 10% voltage tolerence, Burst Read Single Bit Write, Precharge All, Auto Precharge, Early RAS Precharge 0Eh 2 BYTE22 SDRAM Device Attributes, General BYTE23 SDRAM Cycle Time @/CAS Latency=2 7.5ns 10ns 75h A0h BYTE24 Access Time from Clock @/CAS Latency=2 5.4ns 6ns 54h 60h BYTE25 SDRAM Cycle Time @/CAS Latency=1 - - 00h 00h BYTE26 Access Time from Clock @/CAS Latency=1 - - 00h 00h BYTE27 Minimum Row Precharge Time (tRP) 15ns 20ns 0Fh 14h BYTE28 Minimum Row Active to Row Active Delay (tRRD) 15ns 15ns 0Fh 0Fh BYTE29 Minimum /RAS to /CAS Delay (tRCD) 15ns 20ns 0Fh 14h BYTE30 Minimum /RAS Pulse Width (tRAS) 45ns 45ns 2Dh 2Dh BYTE31 Module Bank Density BYTE32 Command and Address Signal Input Setup Time 1.5ns 1.5ns 15h 15h BYTE33 Command and Address Signal Input Hold Time 0.8ns 0.8ns 08h 08h BYTE34 Data Signal Input Setup Time 1.5ns 1.5ns 15h 15h BYTE35 Data Signal Input Hold Time 0.8ns 0.8ns 08h BYTE36 ~61 Superset Information (may be used in future) BYTE62 SPD Revision BYTE63 Checksum for Byte 0~62 BYTE64 Manufacturer JEDEC ID Code BYTE65 ~71 ....Manufacturer JEDEC ID Code BYTE72 Manufacturing Location Rev. 1.2/Apr. 01 NOTE 64MB 10h Intel SPD 1.2B - 08h 00h 12h 6F 3, 8 A6h Hynix JEDED ID ADh Unused FFh HSI (Korea Area) HSA (United States Area) HSE (Europe Area) HSJ (Japan Area) ASIA Area 0*h 1*h 2*h 3*h 4*h 10 6 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series Continued BYTE NUMBER FUNCTION DESCRIPTION BYTE73 Manufacturer’s Part Number (Component) BYTE74 Manufacturer’s Part Number (128Mb based) BYTE75 Manufacturer’s Part Number (Voltage Interface) BYTE76 Manufacturer’s Part Number (Memory Width) BYTE78 Manufacturer’s Part Number (Module Type) BYTE78 Manufacturer’s Part Number (Data Width) BYTE79 ....Manufacturer’s Part Number (Data Width) BYTE80 Manufacturer’s Part Number (Refresh, SDRAM Bank) BYTE81 BYTE82 BYTE83 Manufacturer’s Part Number (Component Configuration) BYTE84 Manufacturer’s Part Number (Hyphent) BYTE85 Manufacturer’s Part Number (Min. Cycle Time) BYTE86 ~90 Manufacturer’s Part Number BYTE91 BYTE92 BYTE93 Manufacturing Date BYTE94 ....Manufacturing Date BYTE95 ~98 BYTE99 ~125 FUNCTION VALUE NOTE -H -K -H -K 7 (SDRAM) 37h 4, 5 1 31h 4, 5 V (3.3V, LVTTL) 56h 4, 5 8 38h 4, 5 M (SO DIMM) 4Dh 4, 5 6 36h 4, 5 3 33h 4, 5 5 (4K Refresh, 4Banks) 35h 4, 5 Manufacturer’s Part Number (Generation) A 41h 4, 5 Manufacturer’s Part Number (Package Type) T 54h 4, 5 6 (x16 based) 36h 4, 5 - (Hyphen) 2Dh 4, 5 K H 4Bh 48h 4, 5 Blanks 20h 4, 5 Revision Code (for Component) Process Code - 4, 6 ....Revision Code (for PCB) Process Code - 4, 6 Work Week - 3, 6 Year - 3, 6 Serial Number - 6 None 00h Assembly Serial Number Manufacturer Specific Data (may be used in future) BYTE126 Reserved 100MHz 64h 7, 8, 9 BYTE127 Reserved Refer to Note7 8Fh 7, 8, 9 BYTE128 ~256 Unused Storage Locations - 00h Note : 1. The bank address is excluded 2. 1, 2, 4, 8 for Interleave Burst Type 3. BCD adopted 4. ASCII adopted 5. Basically Hynix writes Part No. except for H ‘ YM’in Byte 73~90 to use the limited 18 bytes from byte 73 to byte 90 6. Not fixed but dependent 7. CK0 connected to DIMM, TBD junction temp, CL2(3) support, Intel defined Concurrent Auto Precharge support 8. Refer to the most recent Intel and JEDEC SPD Specification 9. These values are applied to PC100 applications only per Intel PC SDRAM specification 10. Refer to HSI Web site. Byte 82~86 for L-Part BYTE NUMBER FUNCTION DESCRIPTION FUNCTION -K VALUE -H -8 NOTE -P BYTE82 Manufacturer’s Part Number (Power) L 4Ch 4, 5 BYTE83 Manufacturer’s Part Number (Package Type) T 54h 4, 5 BYTE84 Manufacturer’s Part Number (Component Configuration) 6 (x16 based) 36h 4, 5 BYTE85 Manufacturer’s Part Number (Hyphent) - (Hyphen) 2Dh 4, 5 BYTE86 Manufacturer’s Part Number (Min. Cycle Time) Rev. 1.2/Apr. 01 K H 48h 48h 4, 5 7 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series ABSOLUTE MAXIMUM RATINGS Parameter Symbol Rating Unit Ambient Temperature TA 0 ~ 70 °C Storage Temperature TSTG -55 ~ 125 °C Voltage on Any Pin relative to V SS VIN, VOUT -1.0 ~ 4.6 V Voltage on VDD relative to VSS VDD, VDDQ -1.0 ~ 4.6 V Short Circuit Output Current IOS 50 mA Power Dissipation PD 1 W Soldering Temperature ⋅ Time TSOLDER 260 ⋅ 10 °C ⋅ Sec Note : Operation at above absolute maximum rating can adversely affect device reliability. DC OPERATING CONDITION (TA=0 to 70°C) Parameter Symbol Min Typ Max Unit Note Power Supply Voltage VDD, VDDQ 3.0 3.3 3.6 V 1 Input High voltage VIH 2.0 3.0 VDDQ + 0.3 V 1,2 Input Low voltage VIL -0.3 0 0.8 V 1,3 Note Note : 1.All voltages are referenced to VSS = 0V 2.VIH(max) is acceptable 5.6V AC pulse width with <=3ns of duration. 3.VIL(min) is acceptable -2.0V AC pulse width with <=3ns of duration. AC OPERATING TEST CONDITION (TA=0 to 70°C, VDD=3.3±0.3V, VSS=0V) Parameter Symbol Value Unit AC Input High / Low Level Voltage VIH / VIL 2.4/0.4 V Vtrip 1.4 V Input Rise / Fall Time tR / tF 1 ns Output Timing Measurement Reference Level Voltage Voutref 1.4 V CL 50 pF Input Timing Measurement Reference Level Voltage Output Load Capacitance for Access Time Measurement 1 Note : 1.Output load to measure access times is equivalent to two TTL gates and one capacitor (50pF). For details, refer to AC/DC output load circuit Rev. 1.2/Apr. 01 8 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series CAPACITANCE (TA=25°C, f=1MHz) -K/H Parameter Pin Input Capacitance Data Input / Output Capacitance Symbol Unit Min Max CK0 CI1 20 40 pF CKE0 CI2 15 30 pF /S0 CI3 15 30 pF A0~11, BA0, BA1 CI4 20 30 pF /RAS, /CAS, /WE CI5 20 30 pF DQM0~DQM7 CI 6 5 15 pF DQ0 ~ DQ63 CI/O 5 15 pF OUTPUT LOAD CIRCUIT Vtt=1.4V RT=250 Ω Output Output 50pF DC Output Load Circuit Rev. 1.2/Apr. 01 50pF AC Output Load Circuit 9 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series DC CHARACTERISTICS I (TA=0 to 70°C, VDD=3.3±0.3V) Parameter Symbol Min. Max Unit Note Input Leakage Current ILI -4 4 uA 1 Output Leakage Current ILO -1 1 uA 2 Output High Voltage VOH 2.4 - V IOH = -4mA Output Low Voltage VOL - 0.4 V IOL = +4mA Note : 1.VIN = 0 to 3.6V, All other pins are not tested under V IN =0V 2.DOUT is disabled, VOUT=0 to 3.6 DC CHARACTERISTICS II Speed Parameter Operating Current Symbol IDD1 Test Condition Burst length=1, One bank active tRC ≥ tRC(min), IOL=0mA -K -H 440 400 CKE ≤ VIL(max), tCK = 15ns 8 CKE ≤ VIL(max), tCK = ∞ 8 IDD2N CKE ≥ VIH(min), CS ≥ VIH(min), tCK = 15ns Input signals are changed one time during 30ns. All other pins ≥ VDD-0.2V or ≤ 0.2V 80 IDD2NS CKE ≥ VIH(min), tCK = ∞ Input signals are stable. 40 IDD3P CKE ≤ VIL(max), tCK = 15ns 28 IDD3PS CKE ≤ VIL(max), tCK = ∞ 28 IDD3N CKE ≥ VIH(min), CS ≥ VIH(min), tCK = 15ns Input signals are changed one time during 30ns. All other pins ≥ VDD-0.2V or ≤ 0.2V 160 IDD3NS CKE ≥ VIH(min), tCK = ∞ Input signals are stable. 160 Burst Mode Operating Current IDD4 tCK ≥ tCK(min), IOL=0mA All banks active Auto Refresh Current IDD5 tRRC ≥ tRRC(min), All banks active Self Refresh Current IDD6 CKE ≤ 0.2V Precharge Standby Current IDD2P in Power Down Mode IDD2PS Precharge Standby Current in Non Power Down Mode Active Standby Current in Power Down Mode Active Standby Current in Non Power Down Mode Unit Note mA 1 mA mA mA mA CL=3 480 480 CL=2 480 400 960 880 mA 1 mA 2 8 mA 3 3.2 mA 4 Note : 1. IDD1 and IDD4 depend on output loading and cycle rates. Specified values are measured with the output open 2. Min. of tRRC (Refresh RAS cycle time) is shown at AC CHARACTERISTICS II 3.HYM71V8M635AT6-K/H 4.HYM71V8M635ALT6-K/H Rev. 1.2/Apr. 01 10 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series AC CHARACTERISTICS I (AC operating conditions unless otherwise noted) -K Parameter Unit Min System Clock Cycle Time CAS Latency = 3 -H Symbol tCK3 Max 7.5 Min 7.5 1000 CAS Latency = 2 Note Max ns 1000 tCK2 7.5 Clock High Pulse Width tCHW 2.5 - 2.5 - ns 1 Clock Low Pulse Width tCLW 2.5 - 2.5 - ns 1 CAS Latency = 3 tAC3 - 5.4 - 5.4 ns CAS Latency = 2 tAC2 - 5.4 - 6 ns Data-Out Hold Time tOH 2.7 - 2.7 - ns Data-Input Setup Time tDS 1.5 - 1.5 - ns 1 Data-Input Hold Time tDH 0.8 - 0.8 - ns 1 Address Setup Time tAS 1.5 - 1.5 - ns 1 Address Hold Time tAH 0.8 - 0.8 - ns 1 CKE Setup Time tCKS 1.5 - 1.5 - ns 1 CKE Hold Time tCKH 0.8 - 0.8 - ns 1 Command Setup Time tCS 1.5 - 1.5 - ns 1 Command Hold Time tCH 0.8 - 0.8 - ns 1 CLK to Data Output in Low-Z Time tOLZ 1 - 1 - ns Access Time From Clock CLK to Data Output in High-Z Time 10 ns 2 CAS Latency = 3 tOHZ3 2.7 5.4 2.7 5.4 ns CAS Latency = 2 tOHZ2 2.7 5.4 3 6 ns Note : 1.Assume tR / tF (input rise and fall time ) is 1ns If tR & tF > 1ns, then [(tR+tF)/2-1]ns should be added to the parameter 2.Access times to be measured with input signals of 1v/ns edge rate, from 0.8v to 2.0v If tR > 1ns, then (tR/2-0.5)ns should be added to the parameter Rev. 1.2/Apr. 01 11 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series AC CHARACTERISTICS II -K Parameter -H Symbol Unit Min Max Min Max Operation tRC 60 - 65 - ns Auto Refresh tRRC 60 - 65 - ns RAS to CAS Delay tRCD 15 - 20 - ns RAS Active Time tRAS 45 100K 45 100K ns RAS Precharge Time tRP 15 - 20 - ns RAS to RAS Bank Active Delay tRRD 15 - 15 - ns CAS to CAS Delay tCCD 1 - 1 - CLK Write Command to Data-In Delay tWTL 0 - 0 - CLK Data-In to Precharge Command tDPL 2 - 2 - CLK Data-In to Active Command tDAL 4 - 5 - CLK DQM to Data-Out Hi-Z tDQZ 2 - 2 - CLK DQM to Data-In Mask tDQM 0 - 0 - CLK MRS to New Command tMRD 2 - 2 - CLK CAS Latency = 3 tPROZ3 3 - 3 - CLK CAS Latency = 2 tPROZ2 2 - 2 - CLK Power Down Exit Time tPDE 1 - 1 - CLK Self Refresh Exit Time tSRE 1 - 1 - CLK Refresh Time tREF - 64 - 64 ms Note RAS Cycle Time Precharge to Data Output Hi-Z 1 Note : 1. A new command can be given tRRC after self refresh exit Rev. 1.2/Apr. 01 12 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series DEVICE OPERATING OPTION TABLE HYM71V8M635A(L)T6-K CAS Latency tRCD tRAS tRC tRP tAC tOH 133MHz(7.5ns) 2CLKs 2CLKs 6CLKs 8CLKs 2CLKs 5.4ns 2.7ns 125MHz(8ns) 3CLKs 3CLKs 6CLKs 9CLKs 3CLKs 6ns 3ns 100MHz(10ns) 2CLKs 2CLKs 5CLKs 7CLKs 2CLKs 6ns 3ns HYM71V8M635A(L)T6-H CAS Latency tRCD tRAS tRC tRP tAC tOH 133MHz(7.5ns) 3CLKs 3CLKs 6CLKs 9CLKs 3CLKs 5.4ns 2.7ns 125MHz(8ns) 3CLKs 3CLKs 6CLKs 9CLKs 3CLKs 6ns 3ns 100MHz(10ns) 2CLKs 2CLKs 5CLKs 7CLKs 2CLKs 6ns 3ns Rev. 1.2/Apr. 01 13 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series COMMAND TRUTH TABLE Command A10/ AP CKEn-1 CKEn CS RAS CAS WE DQM Mode Register Set H X L L L L X OP code No Operation H X X X Bank Active H ADDR H X X X L H H H X L L H H X H X L H L H X CA H X L H L L X CA H X L L H L X X Burst Stop H X L H H L X X DQM H V X Auto Refresh H H L L H Read Read with Autoprecharge Write Write with Autoprecharge Precharge All Banks Precharge selected Bank Burst-Read-SingleWRITE Self Refresh1 X L L H X Entry H L L L L H X Exit L H Entry H L Exit L H Entry H L Exit L H X X X L H H H H X X X L H H H H X X X L H H H H X X X L V V V X L H V V H X L V X L H L H A9 Pin High (Other Pins OP code) X X Note V X H Precharge power down Clock Suspend L RA BA X X X X X X X Note : 1. Exiting Self Refresh occurs by asynchronously bringing CKE from low to high 2. X = Don′t care, H = Logic High, L = Logic Low. BA =Bank Address, RA = Row Address, CA = Column Address, Opcode = Operand Code, NOP = No Operation Rev. 1.2/Apr. 01 14 PC133 SDRAM SO DIMM HYM71V8M635A(L)T6 Series PACKAGE DEMENSION Rev. 1.2/Apr. 01 15