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| White Electronic Designs 1Mx8 STATIC RAM CMOS, MODULE FEATURES 1Mx8 bit CMOS Static RAM * Access Times 20 through 35ns * TTL Compatible Inputs and Outputs * Fully Static, No Clocks High Density Packaging * JEDEC Aproved, Revolutionary Pinout * 36 Pin DIP, No. 179 Single +5V (10%) Supply Operation EDI8F81026C DESCRIPTION The EDI8F81026C is an 8Mb CMOS Static RAM based on two 512Kx8 Static RAMs mounted on a multi-layered epoxy laminate (FR4) substrate. The EDI8F81026C is packaged in a 36 pin DIP and features the JEDEC approved, revolutionary pinout. All inputs and outputs are TTL compatible and operate from a single 5V supply. Fully asynchronous, the EDI8F81026C requires no clocks or refreshing for operation. Pin Configuration A0 A1 A2 A3 A4 E# DQ0 DQ1 VCC VSS DQ2 DQ3 W# A5 A6 A7 A8 A9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 NC A19 A18 A17 A16 G# DQ7 DQ6 VSS VCC DQ5 DQ4 A15 A14 A13 A12 A11 A10 Pin Description A0-A19 E# W# G# DQ0-DQ7 VCC VSS NC Address Inputs Chip Enable Write Enable Output Enable Common Data Input/Output Power (+5V10%) Ground No Connection Block Diagram A0-A18 W# G# 512k x8 DQ0-DQ7 512k x8 A19 E# DECODER July 2004 Rev. 0 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 Industrial Storage Temperature Power Dissipation Output Current -0.5V to 7.0V 0C to +70C -40C to +85C -55C to +125C 2.0 Watt 20 mA EDI8F81026C RECOMMENDED DC OPERATING CONDITIONS Parameter Supply Voltage Supply Voltage Input High Voltage Input Low Voltage 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 * 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 =35pF TRUTH TABLE G# X H L X E# H L L L W# X H H L Mode Standby Output Deselect Read Write Output High Z High Z DOUT DIN Power ICC2, ICC3 ICC1 ICC1 ICC1 CAPACITANCE (f=1.0MHz, VIN=VCC or VSS) Parameter Address Lines Data Lines Chip Enable Line Write and Output Enable Lines These parameters are sampled, not 100% tested. Sym CI CD/Q CC CW Max 12 43 10 32 Unit pF pF pF pF 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, 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 -- -- -- -- -- 2.4 -- Typ* 212 35 20 -- -- -- -- Max 120 50 12 10 10 -- 0.4 Units mA mA mA A A V V July 2004 Rev. 0 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 Time 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) Note 1: Parameter guaranteed, but not tested EDI8F81026C Symbol JEDEC tAVAV tAVQV tELQV tELQX tEHQZ tAVQX tGLQV tGLQX tGHQZ Alt. tRC tAA tACS tCLZ tCHZ tOH tOE tLOZ tOHZ Min 20 20ns Max 20 20 3 10 3 8 3 8 3 3 3 Min 25 25ns Max 25 25 3 12 3 10 3 10 Min 35 35ns Max 35 35 15 12 12 Units ns ns ns ns ns ns ns ns ns FIGURE 2 - READ CYCLE 1 - W# HIGH, G#, E# LOW tAVAV A ADDRESS 1 tAVQV Q ADDRESS 2 tAVQX DATA 1 DATA 2 FIGURE 3 - READ CYCLE 2 - W# HIGH tAVAV A tAVQV E# tELQV tELQX G# tGLQV tGLQX Q tGHQZ tEHQZ July 2004 Rev. 0 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) Note 1: Parameter guaranteed, but not tested. EDI8F81026C Symbol JEDEC tAVAV tELWH tELEH tAVWL tAVEL tAVWH tAVEH tWLWH tWLEH 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 20 15 15 0 0 15 15 15 15 0 0 0 0 0 12 12 3 20ns Max Min 25 20 20 0 0 15 15 20 20 0 0 0 0 0 15 15 3 25ns Max Min 35 30 30 0 0 20 20 25 25 0 0 0 0 0 20 20 3 35ns Max Units ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns 8 12 15 FIGURE 4 - WRITE CYCLE 1 - W# CONTROLLED tAVAV A E# tELWH tAVWH tWLWH W# tAVWL tDVWH tWHDX DATA VALID tWLQZ Q tWHQX tWHAX D HIGH Z July 2004 Rev. 0 4 White Electronic Designs Corporation * (602) 437-1520 * www.wedc.com White Electronic Designs FIGURE 5 - WRITE CYCLE 2 E# CONTROLLED tAVAV A tAVEL E# tAVEH tWLEH W# tDVEH tEHDX DATA VALID tEHAX tELEH EDI8F81026C D Q HIGH Z ORDERING INFORMATION Standard Power EDI8F81026C20M6C EDI8F81026C85M6C EDI8F81026C35M6C Speed (ns) 20 25 35 Package No. 179 179 179 Height* 7.37 (0.290") 7.37 (0.290") 7.37 (0.290") Note: To order an Industrial grade product substitute the letter C in the Suffix with the letter I, eg. EDI8F81026C20M6C becomes EDI8F81026C20M6I. PACKAGE DESCRIPTION Package No. 179: 36 Pin Dual-in-line Package 55.50 (2.185) MAX. 15.88 (0.625) MAX. P1 3.81 (0.150) REF. 7.34 (0.290) MAX. 2.54 (0.100) TYP. 17 X 2.54 (0.100) 43.18 (1.700) REF. 4.45 (0.175) 3.18 (0.125) 15.75 (0.620) 14.99 (0.590) * ALL DIMENSIONS ARE IN MILLIMETERS AND (INCHES). July 2004 Rev. 0 5 White Electronic Designs Corporation * (602) 437-1520 * www.wedc.com White Electronic Designs Document Title 1M X 8 SRAM Module EDI8F81026C Revision History Rev # Rev 0 History 0.1 Updated datasheet format 0.2 Added package height 0.3 Added metric measurements 0.4 Added new document title page Release Date 7-2004 Status Final July 2004 Rev. 0 6 White Electronic Designs Corporation * (602) 437-1520 * www.wedc.com |
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