IS41C4405X IS41LV4405X SERIES ISSI ® 4M x 4 (16-MBIT) DYNAMIC RAM WITH FAST PAGE MODE JUNE 2001 FEATURES DESCRIPTION • Fast Page Mode Access Cycle • TTL compatible inputs and outputs • Refresh Interval: -- 2,048 cycles/32 ms -- 4,096 cycles/64 ms • Refresh Mode: RAS-Only, CAS-before-RAS (CBR), and Hidden • Single power supply: 5V±10% or 3.3V ± 10% • Byte Write and Byte Read operation via two CAS • Industrial temperature range -40°C to 85°C The ISSI 4405x Series is a 4,194,304 x 4-bit high-performance CMOS Dynamic Random Access Memory. The Fast Page Mode allows 2,048 or 4096 random accesses within a single row with access cycle time as short as 20 ns per 4-bit word. These features make the 4405x Series ideally suited for high-bandwidth graphics, digital signal processing, high-performance computing systems, and peripheral applications. The 4405x Series is packaged in a 24-pin 300-mil SOJ with JEDEC standard pinouts. PRODUCT SERIES OVERVIEW KEY TIMING PARAMETERS Part No. Refresh Voltage IS41C44052 2K 5V ± 10% IS41C44054 4K 5V ± 10% IS41LV44052 2K 3.3V ± 10% IS41LV44054 4K 3.3V ± 10% Parameter RAS Access Time (tRAC) CAS Access Time (tCAC) Column Address Access Time (tAA) Fast Page Mode Cycle Time (tPC) Read/Write Cycle Time (tRC) -50 50 13 25 20 84 -60 60 15 30 25 104 Unit ns ns ns ns ns PIN CONFIGURATION 24 (26) Pin SOJ PIN DESCRIPTIONS VCC 1 24 GND I/O0 2 23 I/O3 I/O1 3 22 I/O2 A0-A11 Address Inputs (4K Refresh) A0-A10 Address Inputs (2K Refresh) I/O0-3 Data Inputs/Outputs WE 4 21 CAS WE Write Enable RAS 5 20 OE *A11(NC) 6 19 A9 OE Output Enable RAS Row Address Strobe CAS Column Address Strobe A10 7 18 A8 A0 8 17 A7 A1 9 16 A6 Vcc Power A2 10 15 A5 GND Ground A3 11 14 A4 VCC 12 13 GND NC No Connection * A11 is NC for 2K Refresh devices. ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. © Copyright 2001, Integrated Silicon Solution, Inc. Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 1 IS41C4405X IS41LV4405X SERIES ISSI ® FUNCTIONAL BLOCK DIAGRAM OE WE CAS CONTROL LOGIC CAS WE CONTROL LOGICS CAS WE OE CONTROL LOGIC OE DATA I/O BUS RAS RAS CLOCK GENERATOR COLUMN DECODERS SENSE AMPLIFIERS ROW DECODER REFRESH COUNTER ADDRESS BUFFERS A0-A10(A11) MEMORY ARRAY 4,194,304 x 4 DATA I/O BUFFERS RAS I/O0-I/O3 TRUTH TABLE Function RAS CAS WE OE Address tR/tC I/O Standby H H X X X High-Z Read L L H L ROW/COL DOUT Write: Word (Early Write) L L L X ROW/COL DIN Read-Write L L H→L L→H ROW/COL DOUT, DIN L→H→L L→H→L L L H L L X ROW/COL ROW/COL DOUT DOUT RAS-Only Refresh H→L H X X ROW/NA High-Z CBR Refresh H→L L X X X High-Z Hidden Refresh Read Write(1) Note: 1. EARLY WRITE only. 2 Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 IS41C4405X IS41LV4405X SERIES ISSI ® Functional Description Auto Refresh Cycle The IS41C4405x and IS41LV4405x are CMOS DRAMs optimized for high-speed bandwidth, low power applications. During READ or WRITE cycles, each bit is uniquely addressed through the 11 or 12 address bits. These are entered 11 bits (A0-A10) at a time for the 2K refresh device or 12 bits (A0-A11) at a time for the 4K refresh device. The row address is latched by the Row Address Strobe (RAS). The column address is latched by the Column Address Strobe (CAS). RAS is used to latch the first nine bits and CAS is used the latter ten bits. To retain data, 2,048 refresh cycles are required in each 32 ms period, or 4,096 refresh cycles are required in each 64ms period. There are two ways to refresh the memory: Memory Cycle A memory cycle is initiated by bring RAS LOW and it is terminated by returning both RAS and CAS HIGH. To ensures proper device operation and data integrity any memory cycle, once initiated, must not be ended or aborted before the minimum tRAS time has expired. A new cycle must not be initiated until the minimum precharge time tRP, tCP has elapsed. Read Cycle A read cycle is initiated by the falling edge of CAS or OE, whichever occurs last, while holding WE HIGH. The column address must be held for a minimum time specified by tAR. Data Out becomes valid only when tRAC, tAA, tCAC and tOEA are all satisfied. As a result, the access time is dependent on the timing relationships between these parameters. 1. By clocking each of the 2,048 row addresses (A0 through A10) or 4096 row addresses (A0 through A11) with RAS at least once every 32 ms or 64ms respectively. Any read, write, read-modify-write or RAS-only cycle refreshes the addressed row. 2. Using a CAS-before-RAS refresh cycle. CAS-before-RAS refresh is activated by the falling edge of RAS, while holding CAS LOW. In CAS-before-RAS refresh cycle, an internal 9-bit counter provides the row addresses and the external address inputs are ignored. CAS-before-RAS is a refresh-only mode and no data access or device selection is allowed. Thus, the output remains in the High-Z state during the cycle. Power-On After application of the VCC supply, an initial pause of 200 µs is required followed by a minimum of eight initialization cycles (any combination of cycles containing a RAS signal). During power-on, it is recommended that RAS track with VCC or be held at a valid VIH to avoid current surges. Write Cycle A write cycle is initiated by the falling edge of CAS and WE, whichever occurs last. The input data must be valid at or before the falling edge of CAS or WE, whichever occurs last. Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 3 IS41C4405X IS41LV4405X SERIES ISSI ® ABSOLUTE MAXIMUM RATINGS(1) Symbol Parameters Rating Unit VT Voltage on Any Pin Relative to GND 5V 3.3V –1.0 to +7.0 –0.5 to +4.6 V VCC Supply Voltage 5V 3.3V –1.0 to +7.0 –0.5 to +4.6 V IOUT Output Current 50 mA PD Power Dissipation 1 W TA Commercial Operation Temperature Industrial Operation Temperature 0 to +70 -40 to +85 °C TSTG Storage Temperature –55 to +125 °C Note: 1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. RECOMMENDED OPERATING CONDITIONS (Voltages are referenced to GND.) Symbol Parameter VCC Supply Voltage VIH Input High Voltage VIL Input Low Voltage TA Commercial Ambient Temperature Industrial Ambient Temperature 5V 3.3V 5V 3.3V 5V 3.3V Min. Typ. Max. Unit 4.5 3.0 2.4 2.0 –1.0 –0.3 0 -40 5.0 3.3 — — — — — — 5.5 3.6 VCC + 1.0 VCC + 0.3 0.8 0.8 70 85 V V V °C °C CAPACITANCE(1,2) Symbol CIN1 CIN2 CIO Parameter Input Capacitance: A0-A10(A11) Input Capacitance: RAS, CAS, WE, OE Data Input/Output Capacitance: I/O0-I/O3 Max. Unit 5 7 7 pF pF pF Notes: 1. Tested initially and after any design or process changes that may affect these parameters. 2. Test conditions: TA = 25°C, f = 1 MHz. 4 Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 IS41C4405X IS41LV4405X SERIES ISSI ® ELECTRICAL CHARACTERISTICS(1) (Recommended Operating Conditions unless otherwise noted.) Symbol Parameter Test Condition IIL Input Leakage Current IIO V CC Min. Max. Unit Any input 0V ≤ VIN ≤ Vcc Other inputs not under test = 0V –5 5 µA Output Leakage Current Output is disabled (Hi-Z) 0V ≤ VOUT ≤ Vcc –5 5 µA VOH Output High Voltage Level IOH = –5.0 mA, Vcc = 5V IOH = –2.0 mA, Vcc = 3.3V 2.4 — V VOL Output Low Voltage Level IOL = 4.2 mA, Vcc = 5V IOL = 2 mA, Vcc = 3.3V — 0.4 V ICC1 Standby Current: TTL RAS, CAS ≥ VIH 2 0.5 3 2 mA — — — Commercial Industrial ICC2 Standby Current: CMOS RAS, CAS ≥ VCC – 0.2V Speed 5V 3.3V 5V 3.3V 5V 3.3V — 0.5 1 mA — ICC3 Operating Current: Random Read/Write(2,3) Average Power Supply Current RAS, CAS, Address Cycling, tRC = tRC (min.) -50 -60 — — 120 110 mA ICC4 Operating Current: Fast Page Mode(2,3,4) Average Power Supply Current RAS= VIL, CAS ≥ VIH tRC = tRC (min.) -50 -60 — — 90 80 mA ICC4 Refresh Current: RAS-Only(2,3) Average Power Supply Current RAS Cycling, CAS ≥ VIH tRC = tRC (min.) -50 -60 — — 120 110 mA ICC5 Refresh Current: CBR(2,3,5) Average Power Supply Current RAS, CAS Cycling tRC = tRC (min.) -50 -60 — — 120 110 mA Notes: 1. An initial pause of 200 µs is required after power-up followed by eight RAS refresh cycles (RAS-Only or CBR) before proper device operation is assured. The eight RAS cycles wake-up should be repeated any time the tREF refresh requirement is exceeded. 2. Dependent on cycle rates. 3. Specified values are obtained with minimum cycle time and the output open. 4. Column-address is changed once each Fast Page cycle. 5. Enables on-chip refresh and address counters. Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 5 IS41C4405X IS41LV4405X SERIES ISSI ® AC CHARACTERISTICS(1,2,3,4,5,6) (Recommended Operating Conditions unless otherwise noted.) -50 Symbol Parameter t RC t RAC t CAC t AA t RAS t RP t CAS t CP t CSH t RCD t ASR t RAH t ASC t CAH t AR Random READ or WRITE Cycle Time Access Time from RAS(6, 7) Access Time from CAS(6, 8, 15) Access Time from Column-Address(6) RAS Pulse Width RAS Precharge Time CAS Pulse Width(23) CAS Precharge Time(9) CAS Hold Time (21) RAS to CAS Delay Time(10, 20) Row-Address Setup Time Row-Address Hold Time Column-Address Setup Time(20) Column-Address Hold Time(20) Column-Address Hold Time (referenced to RAS) RAS to Column-Address Delay Time(11) Column-Address to RAS Lead Time RAS to CAS Precharge Time RAS Hold Time RAS Hold Time from CAS Precharge CAS to Output in Low-Z(15, 24) CAS to RAS Precharge Time(21) Output Disable Time(19, 24) Output Enable Time(15, 16) Output Enable Data Delay (Write) OE HIGH Hold Time from CAS HIGH OE HIGH Pulse Width OE LOW to CAS HIGH Setup Time Read Command Setup Time(17, 20) Read Command Hold Time (referenced to RAS)(12) Read Command Hold Time (referenced to CAS)(12, 17, 21) Write Command Hold Time(17) Write Command Hold Time (referenced to RAS)(17) Write Command Pulse Width(17) WE Pulse Widths to Disable Outputs t RAD t RAL t RPC t RSH t RHCP t CLZ t CRP t OD tOE tOED t OEHC tOEP tOES t RCS t RRH t RCH t WCH t WCR tWP tWPZ 6 -60 Min. Max. Min. Max. Units 84 — — — 50 30 8 9 38 12 0 8 0 8 30 — 50 13 25 10K — 10K — — 37 — — — — — 104 — — — 60 40 10 9 40 14 0 10 0 10 40 — 60 15 30 10K — 10K — — 45 — — — — — ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns 10 25 5 8 30 0 5 3 — 12 5 10 5 0 0 25 — — — — — — 15 12 — — — — — — 12 30 5 10 35 0 5 3 — 15 5 10 5 0 0 30 — — — — — — 15 15 — — — — — — ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns 0 — 0 — ns 8 40 — — 10 50 — — ns ns 8 7 — — 10 7 — — ns ns Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 IS41C4405X IS41LV4405X SERIES ISSI ® AC CHARACTERISTICS (Continued)(1,2,3,4,5,6) (Recommended Operating Conditions unless otherwise noted.) -50 Symbol Parameter tRWL Write Command to RAS Lead Time tCWL -60 Min. Max. Min. Max. Units 13 — 15 — ns Write Command to CAS Lead Time(17, 21) 8 — 10 — ns tWCS Write Command Setup Time(14, 17, 20) 0 — 0 — ns t DHR Data-in Hold Time (referenced to RAS) 39 — 39 — ns t ACH Column-Address Setup Time to CAS Precharge during WRITE Cycle OE Hold Time from WE during READ-MODIFY-WRITE cycle(18) Data-In Setup Time(15, 22) Data-In Hold Time(15, 22) READ-MODIFY-WRITE Cycle Time RAS to WE Delay Time during READ-MODIFY-WRITE Cycle(14) CAS to WE Delay Time(14, 20) Column-Address to WE Delay Time(14) Fast Page Mode READ or WRITE Cycle Time RAS Pulse Width Access Time from CAS Precharge(15) READ-WRITE Cycle Time(24) Data Output Hold after CAS LOW Output Buffer Turn-Off Delay from CAS or RAS(13,15,19, 24) Output Disable Delay from WE CAS Setup Time (CBR REFRESH)(20, 25) CAS Hold Time (CBR REFRESH)( 21, 25) OE Setup Time prior to RAS during HIDDEN REFRESH Cycle Auto Refresh Period 2,048 Cycles 4,096 Cycles Transition Time (Rise or Fall)(2, 3) 15 — 15 — ns 8 — 10 — ns 0 8 108 64 — — — — 0 10 133 77 — — — — ns ns ns ns 26 39 20 — — — 32 47 25 — — — ns ns ns 50 — 56 5 0 100K 30 — — 12 60 — 68 5 0 100K 35 — — 15 ns ns ns ns ns 3 5 8 0 10 — — — 3 5 10 0 10 — — — ns ns ns ns — — 1 32 64 50 — — 1 32 64 50 ms tOEH t DS t DH t RWC t RWD t CWD tAWD t PC tRASP tCPA tPRWC tCOH tOFF tWHZ t CSR t CHR tORD tREF tT (17) ns AC TEST CONDITIONS Output load: Two TTL Loads and 50 pF (Vcc = 5.0V ±10%) One TTL Load and 50 pF (Vcc = 3.3V ±10%) Input timing reference levels: VIH = 2.4V, VIL = 0.8V (Vcc = 5.0V ±10%); VIH = 2.0V, VIL = 0.8V (Vcc = 3.3V ±10%) Output timing reference levels: VOH = 2.0V, VOL = 0.8V (Vcc = 5V ±10%, 3.3V ±10%) Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 7 IS41C4405X IS41LV4405X SERIES ISSI ® Notes: 1. An initial pause of 200 µs is required after power-up followed by eight RAS refresh cycle (RAS-Only or CBR) before proper device operation is assured. The eight RAS cycles wake-up should be repeated any time the tREF refresh requirement is exceeded. 2. VIH (MIN) and VIL (MAX) are reference levels for measuring timing of input signals. Transition times, are measured between VIH and VIL (or between VIL and VIH) and assume to be 1 ns for all inputs. 3. In addition to meeting the transition rate specification, all input signals must transit between VIH and VIL (or between VIL and VIH) in a monotonic manner. 4. If CAS and RAS = VIH, data output is High-Z. 5. If CAS = VIL, data output may contain data from the last valid READ cycle. 6. Measured with a load equivalent to one TTL gate and 50 pF. 7. Assumes that tRCD - tRCD (MAX). If tRCD is greater than the maximum recommended value shown in this table, tRAC will increase by the amount that tRCD exceeds the value shown. 8. Assumes that tRCD • tRCD (MAX). 9. If CAS is LOW at the falling edge of RAS, data out will be maintained from the previous cycle. To initiate a new cycle and clear the data output buffer, CAS and RAS must be pulsed for tCP. 10. Operation with the tRCD (MAX) limit ensures that tRAC (MAX) can be met. tRCD (MAX) is specified as a reference point only; if tRCD is greater than the specified tRCD (MAX) limit, access time is controlled exclusively by tCAC. 11. Operation within the tRAD (MAX) limit ensures that tRCD (MAX) can be met. tRAD (MAX) is specified as a reference point only; if tRAD is greater than the specified tRAD (MAX) limit, access time is controlled exclusively by tAA. 12. Either tRCH or tRRH must be satisfied for a READ cycle. 13. tOFF (MAX) defines the time at which the output achieves the open circuit condition; it is not a reference to VOH or VOL. 14. tWCS, tRWD, tAWD and tCWD are restrictive operating parameters in LATE WRITE and READ-MODIFY-WRITE cycle only. If tWCS • tWCS (MIN), the cycle is an EARLY WRITE cycle and the data output will remain open circuit throughout the entire cycle. If tRWD • tRWD (MIN), tAWD • tAWD (MIN) and tCWD • tCWD (MIN), the cycle is a READ-WRITE cycle and the data output will contain data read from the selected cell. If neither of the above conditions is met, the state of I/O (at access time and until CAS and RAS or OE go back to VIH) is indeterminate. OE held HIGH and WE taken LOW after CAS goes LOW result in a LATE WRITE (OE-controlled) cycle. 15. Output parameter (I/O) is referenced to corresponding CAS input. 16. During a READ cycle, if OE is LOW then taken HIGH before CAS goes HIGH, I/O goes open. If OE is tied permanently LOW, a LATE WRITE or READ-MODIFY-WRITE is not possible. 17. Write command is defined as WE going low. 18. LATE WRITE and READ-MODIFY-WRITE cycles must have both tOD and tOEH met (OE HIGH during WRITE cycle) in order to ensure that the output buffers will be open during the WRITE cycle. The I/Os will provide the previously written data if CAS remains LOW and OE is taken back to LOW after tOEH is met. 19. The I/Os are in open during READ cycles once tOD or tOFF occur. 20. Determined by falling edge of CAS. 21. Determined by rising edge of CAS. 22. These parameters are referenced to CAS leading edge in EARLY WRITE cycles and WE leading edge in LATE WRITE or READ-MODIFY-WRITE cycles. 23. CAS must meet minimum pulse width. 24. The 3 ns minimum is a parameter guaranteed by design. 25. Enables on-chip refresh and address counters. 8 Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 IS41C4405X IS41LV4405X SERIES ISSI ® FAST-PAGE-MODE READ CYCLE tRC tRAS tRP RAS tCSH tCRP tRSH tCAS tCLCH tRCD tRRH CAS tAR tRAD tASR ADDRESS tRAH tRAL tCAH tASC Row Column Row tRCS tRCH WE tAA tRAC tCAC tCLC I/O tOFF(1) Open Open Valid Data tOE tOD OE tOES Don’t Care Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 9 IS41C4405X IS41LV4405X SERIES ISSI ® FAST PAGE MODE READ-MODIFY-WRITE CYCLE tRASP tRP RAS tPRWC tCAS tCSH tCAS tCRP tRCD tRSH tCAS tCP tCRP tCP CAS tAR tRAH tASR ADDRESS tCPWD tRAL tCAH tCPWD tRAD tASC Row tCAH tAR Column tASC Column tCWL tRWD tAWD tCWD tRCS tCAH tASC Column tCWL tRWL tCWL tAWD tCWD tWP tAWD tCWD tWP tWP WE tAA tAA tCAC tCAC tOEA OE tCAC tOEA tOEZ tOED tRAC tOEA tOEZ tOED OUT IN tOEZ tOED tDH tDH tDS tCLZ tCLZ I/O tAA tDS OUT IN tDH tCLZ OUT tDS IN Don’t Care 10 Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 IS41C4405X IS41LV4405X SERIES ISSI ® FAST-PAGE-MODE EARLY WRITE CYCLE (OE = DON'T CARE) tRC tRAS tRP RAS tCSH tCRP tRSH tCAS tCLCH tRCD CAS tAR tRAD tASR ADDRESS tRAH tRAL tCAH tACH tASC Row Column Row tCWL tRWL tWCR tWCS tWCH tWP WE tDHR tDS I/O tDH Valid Data Don’t Care Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 11 IS41C4405X IS41LV4405X SERIES ISSI ® FAST-PAGE-MODE READ WRITE CYCLE (LATE WRITE and READ-MODIFY-WRITE Cycles) tRWC tRAS tRP RAS tCSH tCRP tRSH tCAS tCLCH tRCD CAS tAR tRAD tRAH tASR tRAL tCAH tASC tACH ADDRESS Row Column Row tRWD tCWL tRWL tCWD tAWD tRCS tWP WE tAA tRAC tCAC tCLZ I/O tDS Open Valid DOUT tOE tOD tDH Valid DIN Open tOEH OE Don’t Care 12 Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 IS41C4405X IS41LV4405X SERIES ISSI ® FAST PAGE MODE EARLY WRITE CYCLE tRASP tRP RAS tCAS tCRP tRHCP tRSH tCAS tPC tCAS tCSH tRCD tCP tCRP tCP CAS tAR tRAL tRAH tRAD tASC tASR ADDRESS Row tCAH tCAH tAR Column tASC Column Column tCWL tWCS tWCH tCAH tASC tCWL tWCH tWCS tWCS tWP tCWL tWP tWCH tWP WE tWCR OE tDHR tDS I/O tDH Valid DIN tDS tDH Valid DIN tDS tDH Valid DIN Don’t Care Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 13 IS41C4405X IS41LV4405X SERIES ISSI ® AC WAVEFORMS READ CYCLE (With WE-Controlled Disable) RAS tCSH tCRP tRCD tCP tCAS CAS tAR tRAD tRAH tASR ADDRESS tCAH tASC Row tASC Column Column tRCS tRCH tRCS WE tAA tRAC tCAC tCLZ Open I/O tWHZ tCLZ Valid Data Open tOE tOD OE Don’t Care RAS-ONLY REFRESH CYCLE (OE, WE = DON'T CARE) tRC tRAS tRP RAS tCRP tRPC CAS tASR ADDRESS I/O tRAH Row Row Open Don’t Care 14 Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 IS41C4405X IS41LV4405X SERIES ISSI ® CBR REFRESH CYCLE (Addresses; WE, OE = DON'T CARE) tRP tRAS tRP tRAS RAS tCHR tRPC tCP tCHR tRPC tCSR tCSR CAS Open I/O Don’t Care HIDDEN REFRESH CYCLE(1) (WE = HIGH; OE = LOW) tRAS tRP tRAS RAS tCRP tRCD tRSH tCHR CAS tAR tRAD tRAH tASC tASR ADDRESS Row tRAL tCAH Column tAA tRAC tOFF(2) tCAC tCLZ I/O Open Valid Data tOE Open tOD tORD OE Don’t Care Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 15 IS41C4405X IS41LV4405X SERIES ISSI ® ORDERING INFORMATION Commercial Range: 0°° C to 70°° C Voltage: 5V Speed (ns) Order Part No. Refresh Package 50 IS41C44052-50J 2K 300-mil SOJ 60 IS41C44052-60J 2K 300-mil SOJ Speed (ns) Order Part No. Refresh Package 50 IS41C44054-50J 4K 300-mil SOJ 60 IS41C44054-60J 4K 300-mil SOJ Refresh Package Voltage: 3.3V Speed (ns) 50 IS41LV44052-50J 2K 300-mil SOJ 60 IS41LV44052-60J 2K 300-mil SOJ Refresh Package Speed (ns) 16 Order Part No. Order Part No. 50 IS41LV44054-50J 4K 300-mil SOJ 60 IS41LV44054-60J 4K 300-mil SOJ Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 IS41C4405X IS41LV4405X SERIES ISSI ® ORDERING INFORMATION Industrial Range: -40°° C to 85°C Voltage: 5V Speed (ns) Order Part No. Refresh Package 50 IS41C44052-50JI 2K 300-mil SOJ 60 IS41C44052-60JI 2K 300-mil SOJ Refresh Package Speed (ns) Order Part No. 50 IS41C44054-50JI 4K 300-mil SOJ 60 IS41C44054-60JI 4K 300-mil SOJ Refresh Package Voltage: 3.3V Speed (ns) Order Part No. 50 IS41LV44052-50JI 2K 300-mil SOJ 60 IS41LV44052-60JI 2K 300-mil SOJ Refresh Package Speed (ns) Order Part No. 50 IS41LV44054-50JI 4K 300-mil SOJ 60 IS41LV44054-60JI 4K 300-mil SOJ ISSI ® Integrated Silicon Solution, Inc. 2231 Lawson Lane Santa Clara, CA 95054 Tel: 1-800-379-4774 Fax: (408) 588-0806 E-mail: [email protected] www.issi.com Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 06/24/01 17