EDI8G322048V 2048K x 32 Static RAM CMOS, High Speed Module Features DESCRIPTION n 2048K x 32 bit CMOS Static n Random Access Memory The EDI8G322048V is a high speed 64 megabit Static RAM module organized as 2048K words by 32 bits. This module is constructed from sixteen 1024K x 4 Static RAMs in SOJ packages on an epoxy laminate (FR4) board. • Access Times: 20, 25, and 35ns • Individual Byte Selects Four chip enables (EØ-E3) and the highest order address line are used to independently enable the four bytes as well as the low or high block of addressable memory space. Reading or writing can be executed on individual bytes or any combination of multiple bytes through proper use of selects. • Fully Static, No Clocks • TTL Compatible I/O n High Density Package • 72 lead SIMM The EDI8G322048V is offered in a 72 lead SIMM package, which enables 64 megabits of memory to be placed in less than 1.3 square inches of board space. • Common Data Inputs and Outputs n Single +3.3V (±10%) Supply Operation All inputs and outputs are TTL compatible and operate from a single 3.3V supply. Fully asynchronous circuitry requires no clocks or refreshing for operation and provides equal access and cycle times for ease of use. *Pins PD1- PD4, are used to identify module memory density in applications where alternate modules can be interchanged. PIN CONFIGURATION P * February 2002 Rev 0 ECO # 14885 1 IN N AMES AØ-A20 Address Inputs E1-E4 Chip Enables W Write Enable G Output Enable DQØ-DQ31 Common Data Input/Output VCC Power (+3.3V±10%) VSS Ground NC No Connection PD1 Open PD2 VSS PD3 VSS PD4 Open White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com EDI8G322048V BLOCK DIAGRAM A0-A19 A20 E1\ E2\ DECODER W\ G\ E3\ E4\ DECODER A20 U1 1Mx4 DQ0-DQ3 U3 1Mx4 DQ4-DQ7 U9 1Mx4 DQ0-DQ3 U11 1Mx4 DQ4-DQ7 U2 1Mx4 DQ8-DQ11 U4 1Mx4 DQ12-DQ15 U10 1Mx4 DQ8-DQ11 U12 1Mx4 DQ12-DQ15 U5 1Mx4 DQ16-DQ19 U7 1Mx4 DQ20-DQ23 U13 1Mx4 DQ16-DQ19 U15 1Mx4 DQ20-DQ23 U6 1Mx4 DQ24-DQ27 U8 1Mx4 DQ28-DQ31 U14 1Mx4 DQ24-DQ27 U16 1Mx4 DQ28-DQ31 8G322048C White Electronic Designs Corporation • Westborough, MA • (508) 366-5151 2 EDI8G322048V A BSOLUTE M AXIMUM R ATINGS Voltage on any pin relative to VSS Operating Temperature TA (Ambient) Commercial Storage Temperature, Plastic Power Dissipation Output Current * R Parameter -0.5V to 4.6V Supply Voltage Supply Voltage Input High Voltage Input Low Voltage 0°C to +70°C -55°C to +125°C 7.0 Watts 20 mA *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 greater than those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. DC O ECOMMENDED C PERATING ONDITIONS Sym Min Typ Max Units VCC VSS VIH VIL 3.0 0 2.2 -0.3 3.3 0 — — 3.6 0 VCC+0.3 0.8 V V V V AC T C EST ONDITIONS Input Pulse Levels Input Rise and Fall Times Input and Output Timing Levels Output Load VSS to 3.0V 3ns 1.5V 1TTL, CL = 30pF (NOTE: For tEHQZ , tGHQZ and tWLQZ, CL = 5pF) DC E C LECTRICAL HARACTERISTICS Parameter Sym Conditions Operating Power Supply Current Standby (TTL) Power Supply Current Full Standby Power Supply Current CMOS Input Leakage Current Output Leakage Current Output High Voltage Output Low Voltage ICC1 ICC2 ICC3 W, E = VIL, II/O = 0mA, Min Cycle E VIH, VIN VIL or VIN VIH E VCC -0.2V VIN VCC -0.2V or VIN 0.2V VIN = 0V to VCC V I/C = 0V to VCC IOH = -4.0mA IOL = 8.0mA ³ ILO VOH VOL £ ³ ³ ILI Min Typ Max Units 1750 mA 800 mA 160 mA ³ £ — — 2.4 — — — — — ±80 µA ±20 µA — V 0.4 V *Typical: TA = 25°C, VCC = 3.3V T RUTH T ABLE E1 E2 E3 E4 W G Operational Comments H L L * * H L L * * H L L * * H L L * * H H L L H H L H H L Disabled Read Double Word Write Double Word Write One or More Bytes in Double Word Read One or More Bytes in Double Word *Each enable controls one byte (x8) within the x32 (doubleword) and one or more byte enables may be driven valid during this operation. C (f=1.0MH , V =V APACITANCE Z IN CC OR V ) SS Parameter Sym Max Unit Address Lines Data Lines Chip Enable Line Write Line CI C D /Q CC CN 120 20 120 120 pF pF pF pF These parameters are sampled, not 100% tested. 3 White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com EDI8G322048V AC C HARACTERISTICS R EAD Symbol Parameter Read Cycle Time Address Access Time Chip Enable Access Chip Enable to Output in Low Z1 Chip Disable to Output in High Z1 Output Hold from Address Change Output Enable to Output Valid Output Enable to Output in Low Z1 Output Disable to Output in High Z1 YCLE 20ns JEDEC Alt. Min tAVA tRC tAA tACS tCLZ tCHZ tOH tOE tOLZ tOHZ 20 tAVQV tELQV tELQX tEHQZ tAVQX tGLQV tGLQX tGHQZ C 25ns Max Min 35ns Max Min 25 20 20 3 25 25 35 35 3 15 3 3 17 20 3 15 0 3 17 20 0 15 0 17 20 Note 1: Parameter guaranteed, but not tested. Read Cycle 1 - W High, G, E Low TAVAV A ADDRESS 1 ADDRESS 2 TAVQV TAVQX Q DATA 1 DATA 2 Read Cycle 2 - W High TAVAV A TAVQV E TELQV TEHQZ TELQX G TGLQV TGHQZ TGLQX Q White Electronic Designs Corporation • Westborough, MA • (508) 366-5151 4 Max 35 Units ns ns ns ns ns ns ns ns ns EDI8G322048V AC C Parameter Write Cycle Time Chip Enable to End of Write Address Setup Time Address Valid to End of Write Write Pulse Width Write Recovery Time Data Hold Time Write to Output in High Z1 Data to Write Time Output Active from End of Write1 HARACTERISTICS W RITE C YCLE Symbol JEDEC Alt. 20ns 25ns 35ns Min Max Min Max Min Max tAVAV tELWH tWLEH tAVWL tAVEL tAVWH tAVEH tWLWH tELEH tWHAX tEHAX tWHDX tEHDX tWLQZ tDVWH tDVEH tWHQX 20 15 15 0 0 15 15 15 15 0 0 3 3 0 12 12 3 tWC tCW tCW tAS tAS tAW tAW tWP tWP tWR tWR tDH tDH tWHZ tDW tDW tWLZ 25 20 20 0 0 20 20 20 20 0 0 0 0 0 15 15 3 8 12 35 25 25 0 0 25 25 25 25 0 0 0 0 0 20 20 3 15 Units ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Note 1: Parameter guaranteed, but not tested. Write Cycle 1 - W Controlled TAVAV A E TELWH TWHAX TAVWH TWLWH W TAVWL TDVWH D TWHDX DATA VALID TWHQX TWLQZ HIGH Z Q 5 White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com EDI8G322048V Write Cycle 2 - E Controlled TAVAV A TAVEL TELEH E TAVEH TEHAX TWLEH W TDVEH D HIGH Z Q Ordering Information Par t Number Speed (ns) EDI8G322048V20MMC EDI8G322048V25MMC EDI8G322048V35MMC 20 25 35 Package Descriptions 72 LEAD TEHDX DATA VALID SIMM ALL DIMENSIONS ARE IN INCHES White Electronic Designs Corporation • Westborough, MA • (508) 366-5151 6