EDI8G322048C 2048K x 32 Static RAM CMOS, High Speed Module FEATURES DESCRIPTION 2048K x 32 bit CMOS Static The EDI8G322048C 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. Random Access Memory 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 High Density Package 72 lead SIMM, No. 356 (Straight) The EDI8G322048C 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 Single +5V (±10%) Supply Operation All inputs and outputs are TTL compatible and operate from a single 5V 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 PIN NAMES AØ-A20 Address Inputs EØ-E3 Chip Enables W Write Enable G Output Enable DQØ-DQ31 Common Data Input/Output VCC Power (+5V±10%) VSS Ground NC No Connection 8G322048C Pin Config. June 2001 Rev. 1 ECO #14323 1 White Electronic Designs Corporation (508) 366-5151 www.whiteedc.com EDI8G322048C 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 (508) 366-5151 www.whiteedc.com 2 June 2001 Rev. 1 ECO #14323 EDI8G322048C ABSOLUTE MAXIMUM RATINGS* Voltage on any pin relative to VSS Operating Temperature TA (Ambient) Commercial Storage Temperature, Plastic Power Dissipation Output Current RECOMMENDED DC OPERATING CONDITIONS Parameter Supply Voltage Supply Voltage Input High Voltage Input Low Voltage -0.5V to 7.0V 0°C to +70°C -55°C to +125°C 7.0 Watts 20 mA Sym VCC VSS VIH VIL Min 4.5 0 2.2 -0.3 Typ 5.0 0 --- Max 5.5 0 6.0 0.8 Units V V V V AC TEST CONDITIONS *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. Input Pulse Levels Input Rise and Fall Times Input and Output Timing Levels Output Load VSS to 3.0V 5ns 1.5V 1TTL, CL = 30pF (note: For TEHQZ,TGHQZ and TWLQZ, CL = 5pF) DC ELECTRICAL CHARACTERISTICS Parameter 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 Sym ICC1 ICC2 ICC3 Conditions W, E = VIL, II/O = 0mA, Min Cycle E ³ VIH, VIN £ VIL or VIN ³ VIH E ³ VCC-0.2V VIN ³ VCC-0.2V or VIN £ 0.2V VIN = 0V to VCC V I/O = 0V to VCC IOH = -4.0mA IOL = 8.0mA ILI ILO VOH VOL Min --2.4 -- Typ Max Units 1750 mA 800 mA 160 mA ----- ±80 ±20 -0.4 µA µA V V *Typical: TA = 25°C, VCC = 5.0V TRUTH TABLE E0 H L L * * E1 H L L * * E2 H L L * * E3 H L L * * W H H L L H G H L H H L Operational Comments 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. CAPACITANCE (f=1.0MHz, VIN=VCC or VSS) Parameter Address Lines Data Lines Chip Enable Line Write Line Sym CI CD/Q CC CN Max 120 20 120 120 Unit pF pF pF pF These parameters are sampled, not 100% tested. June 2001 Rev. 1 ECO #14323 3 White Electronic Designs Corporation (508) 366-5151 www.whiteedc.com EDI8G322048C AC CHARACTERISTICS READ CYCLE Symbol JEDEC Alt. TAVAV TRC TAVQV TAA TELQV TACS TELQX TCLZ TEHQZ TCHZ TAVQX TOH TGLQV TOE TGLQX TOLZ TGHQZ TOHZ Parameter Read Cycle Time Address Access Time Chip Enable Access Chip Enable to Output in Low Z (1) Chip Disable to Output in High Z (1) Output Hold from Address Change Output Enable to Output Valid Output Enable to Output in Low Z (1) Output Disable to Output in High Z(1) 20ns Min Max 20 20 20 3 15 3 15 0 15 25ns Min 25 35ns Max Min 35 25 25 3 3 17 3 3 17 0 0 17 Max Units ns 35 ns 35 ns ns 20 ns ns 20 ns ns 20 ns 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 8G322048C Rd Cyc1 READ CYCLE 2 - W HIGH TAVAV A TAVQV E TELQV TEHQZ TELQX G TGLQV TGHQZ TGLQX Q 8G322048C Rd Cyc2 White Electronic Designs Corporation (508) 366-5151 www.whiteedc.com 4 June 2001 Rev. 1 ECO #14323 EDI8G322048C AC CHARACTERISTICS WRITE CYCLE 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 Z (1) Data to Write Time Output Active from End of Write (1) Symbol JEDEC Alt. TAVAV TWC TELWH TCW TWLEH TCW TAVWL TAS TAVEL TAS TAVWH TAW TAVEH TAW TWLWH TWP TELEH TWP TWHAX TWR TEHAX TWR TWHDX TDH TEHDX TDH TWLQZ TWHZ TDVWH TDW TDVEH TDW TWHQX TWLZ Min 20 15 15 0 0 15 15 15 15 0 0 3 3 0 12 12 3 20ns Max 8 Min 25 20 20 0 0 20 20 20 20 0 0 0 0 0 15 15 3 25ns Max 12 35ns Min Max 35 25 25 0 0 25 25 25 25 0 0 0 0 0 15 20 20 3 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 8G322048C Write Cyc1 June 2001 Rev. 1 ECO #14323 5 White Electronic Designs Corporation (508) 366-5151 www.whiteedc.com EDI8G322048C WRITE CYCLE 2 - E CONTROLLED TAVAV A TAVEL TELEH E TAVEH TEHAX TWLEH W TDVEH D TEHDX DATA VALID HIGH Z Q 8G322048C Write Cyc2 ORDERING INFORMATION Part Number EDI8G322048C20MMC EDI8G322048C25MMC EDI8G322048C35MMC Speed (ns) 20 25 35 Package No. 407 407 407 PACKAGE DESCRIPTIONS PACKAGE NO. 407: 72 LEAD SIMM 8G322048C Pkg. ALL DIMENSIONS ARE IN INCHES White Electronic Designs Corporation (508) 366-5151 www.whiteedc.com 6 June 2001 Rev. 1 ECO #14323