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| White Electronic Designs 512Kx32 Static RAM CMOS, High Speed Module FEATURES n n EDI8F32512V DESCRIPTION 512Kx32 bit CMOS Static RAM Random Access Memory n n n n Access Times: 15, 20, and 25ns Individual Byte Selects Fully Static, No Clocks TTL Compatible I/O 72 Pin ZIP, No. 173 72 lead SIMM, No. 174 (Gold Option) Common Data Inputs and Outputs The EDI8F32512V is a high speed 16 Mb Static RAM module organized as 512K words by 32 bits. This module is constructed from four 512Kx8 Static RAMs in SOJ packages on an epoxy laminate (FR4) board. Four chip enables (E0#-E3#) are used to independently enable the four bytes. Reading or writing can be executed on individual bytes or any combination of multiple bytes through proper use of selects. The EDI8F32512V is offered in 72 pin ZIP and 72 lead SIMM packages, which enable 16 Mb of memory to be placed in less than 1.3 square inches of board space. 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 PD0- PD3, are used to identify module memory density in applications where alternate modules can be interchanged. n High Density Package n n n n Single +3.3V (10%) Supply Operation * This product is subject to change without notice. FIG. 1 Pin Configurations and Block Diagram Pin Names A0-A18 E0#-E3# W# G# DQ0-DQ31 VCC VSS NC Address Inputs Chip Enables Write Enable Output Enable Common Data Input/Output Power (+3.3V10%) Ground No Connectiona White Electronic Designs Corp. reserves the right to change products or specifications without notice. Aug, 2002 Rev. 8A 1 White Electronic Designs Corporation * (602) 437-1520 * www.wedc.com White Electronic Designs ABSOLUTE MAXIMUM RATINGS* Voltage on any pin relative to VSS Operating Temperature TA (Ambient) Commercial Storage Temperature, Plastic Power Dissipation Output Current -0.5V to 4.6V 0C to +70C -55C to +125C 2.5 Watts 20 mA EDI8F32512V RECOMMENDED DC OPERATING CONDITIONS Parameter Supply Voltage Supply Voltage Input High Voltage Input Low Voltage Sym VCC VSS VIH VIL Min 3.0 0 2.2 -0.3 Typ 3.3 0 --Max 3.6 0 VCC +0.3 0.8 Units V V V V *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. AC TEST CONDITIONS Input Pulse Levels Input Rise and Fall Times Input and Output Timing Levels Output Load (Note: For tEHQZ,tGHQZ and tWLQZ, CL = 5pF) VSS to 3.0V 5ns 1.5V 1TTL, CL = 30pF 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 *Typical: TA = 25C, VCC = 5.0V Sym ICC1 ICC2 ICC3 ILI ILO VOH VOL Conditions 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/O = 0V TO VCC IOH = -4.0mA IOL = 8.0mA Min Typ* Max 800 240 40 20 20 -0.4 Units mA mA mA A A V V --2.4 -- ----- TRUTH TABLE E# H L L L W# X H L H G# X L X H Mode Standby Read Write Output Deselect Output HIGH Z DOUT DIN HIGH Z Power ICC2/ICC3 ICC1 ICC1 ICC1 Parameter Address Lines Data Lines Chip Enable Line Write Line CAPACITANCE (f=1.0MHz, VIN=VCC or VSS) Sym CI CD/Q CC CN Max 45 20 20 45 Unit pF pF pF pF These parameters are sampled, not 100% tested. White Electronic Designs Corp. reserves the right to change products or specifications without notice. Aug, 2002 Rev. 8A 2 White Electronic Designs Corporation * (602) 437-1520 * www.wedc.com White Electronic Designs AC CHARACTERISTICS READ CYCLE 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 (1) Notes: 1. Parameter guaranteed, but not tested. EDI8F32512V Symbol JEDEC tAVAV tAVQV tELQV tELQX tEHQZ tAVQX tGLQV tGLQX tGHQZ Alt. tRC tAA tACS tCLZ tCHZ tOH tOE tOLZ tOHZ Min 15 15ns Max 15 15 3 7 3 7 0 7 0 3 3 Min 20 20ns Max 20 20 3 10 3 8 0 8 Min 25 25ns Max 25 25 12 10 10 Units ns ns ns ns ns ns ns ns ns FIG. 2 READ CYCLE 1 - W# HIGH, G#, E# LOW FIG. 3 READ CYCLE 2 - W# HIGH White Electronic Designs Corp. reserves the right to change products or specifications without notice. Aug, 2002 Rev. 8A 3 White Electronic Designs Corporation * (602) 437-1520 * www.wedc.com White Electronic Designs 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) Notes: 1. Parameter guaranteed, but not tested. EDI8F32512V Symbol JEDEC tAVAV tELWH tWLEH tAVWL tAVEL tAVWH tAHEH tWLWH tELEH tWHAX tEHAX tWHDX tEHDX tWLQZ tDVWH tDVEH tWHQX Alt. tWC tCW tCW tAS tAS tAW tAW tWP tWP tWR tWR tDH tDH tWHZ tDW tDW tWLZ Min 15 10 10 0 0 10 10 10 10 0 0 0 0 0 7 7 3 15ns Max Min 20 15 15 0 0 15 15 15 15 0 0 0 0 0 9 9 3 20ns Max Min 25 20 20 0 0 15 15 15 15 0 0 0 0 0 10 10 3 25ns Max Units ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns 6 8 12 FIG. 4 WRITE CYCLE 1 - W# CONTROLLED White Electronic Designs Corp. reserves the right to change products or specifications without notice. Aug, 2002 Rev. 8A 4 White Electronic Designs Corporation * (602) 437-1520 * www.wedc.com White Electronic Designs FIG. 5 WRITE CYCLE 2 - E# CONTROLLED EDI8F32512V White Electronic Designs Corp. reserves the right to change products or specifications without notice. Aug, 2002 Rev. 8A 5 White Electronic Designs Corporation * (602) 437-1520 * www.wedc.com White Electronic Designs ORDERING INFORMATION Part Number EDI8F32512V15MMC EDI8F32512V20MMC EDI8F32512V25MMC Speed (ns) 15 20 25 Package No. 174 174 174 Part Number EDI8F32512V15MZC EDI8F32512V20MZC EDI8F32512V25MZC Speed (ns) 15 20 25 EDI8F32512V Package No. 173 173 173 Note: To order gold SIMM option, change from "EDI8F" to "EDI8G". PACKAGE DESCRPTION PACKAGE NO. 173: 72 PIN ZIP PACKAGE NO. 174: 72 LEAD SIMM White Electronic Designs Corp. reserves the right to change products or specifications without notice. Aug, 2002 Rev. 8A 6 White Electronic Designs Corporation * (602) 437-1520 * www.wedc.com |
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