White Electronic Designs EDI8L32128V 128KX32 CMOS HIGH SPEED STATIC RAM FEATURES 128Kx32 bit CMOS Static Analog SHARCTM External Memory Solution ADSP-21060L ADSP-21062L Random Access Memory Array Fast Access Times: 12,15 and 20ns User Configurable Organization with Minimal Additional Logic Master Output Enable and Write Control TTL Compatible Inputs and Outputs Fully Static, No Clocks Surface Mount Package 68 Lead PLCC, No. 99 (JEDEC MO-47AE) Small Footprint, 0.990 Sq. In. Multiple Ground Pins for Maximum Noise Immunity Single 3.3V (±5%) Supply Operation The EDI8L32128V is a high speed, 3.3 volt, four megabit density Static RAM. The device is available with access times of 12, 15 and 20ns, allowing the device to support 60MHz DSPs with no wait states. The high speed, 3.3V supply voltage and byte configurability make the device ideal for interfacing with Analog Devices ADSP-21062L or ADSP-21060L SHARC DSPs. The device can be configured as a 128Kx32 and used to create a single chip external data memory solution for the SHARC (figure 1). Providing a 51% space savings when compared to four 128Kx8, 400mil wide plastic SOJs. the EDI8L32128V has a 10pf load on the data lines vs. 24pf for four plastic SOJs. Memory upgrades in the same footprint can be accomplished with the EDI8L32256V (256Kx32) or the EDI8L32512V (512KX32). This is covered in detail in the application report "The EDI's x32 MCM-L SRAM Family: Integrated Memory Solution for the Analog SHARC DSP" Alternatively the device's chip enables can configure it as a 256Kx16. A 256Kx48 program memory array for the SHARC is created using three devices (figure 2). If this memory is too deep, two 128Kx24's (EDI8L24128V) can be used to create a 128Kx48 memory array. PIN CONFIGURATIONS AND BLOCK DIAGRAM Note: Solder Reflow temperature should not exceed 260°C for 10 seconds PIN NAMES AØ-A16 EØ-E3 W G DQØ-DQ31 VCC VSS NC Address Inputs Chip Enables (One per Byte) Master Write Enable Master Output Enable Common Data Input/Output Power (+3.3V±10%) Ground No Connection Note: Pin 2 & 67 on the 64Kx32 (EDI8L3265C) and the 256Kx32 (EDI8L32256C) are word select pins. April 2001 Rev. 5 ECO #8366 1 White Electronic Designs Corporation (508) 485-4000 www.whiteedc.com EDI8L32128V White Electronic Designs RECOMMENDED DC OPERATING CONDITIONS ABSOLUTE MAXIMUM RATINGS* Voltage on any pin relative to VSS Operating Temperature TA (Ambient) Commercial Industrial Storage Temperature Power Dissipation Output Current. Junction Temperature, TJ -0.5V to 4.6V Parameter Supply Voltage Supply Voltage Input High Voltage Input Low Voltage 0°C to + 70°C -40°C to +85°C -55°C to +125°C 3 Watts 20 mA 175°C Sym VCC3. VSS VIH VIL Min 135V 0 2.2 -0.3 Typ 3.3 0 --- Max Units 3.465V V 0 V VCC+0.3 V 0.8 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 Figure 1 (note: For TEHQZ,TGHQZ and TWLQZ, CL = 5pF) (see figure 2) DC ELECTRICAL CHARACTERISTICS Parameter Sym Conditions Min Max 12 15 20 Units ns Operating Power Supply Current ICC1 W= VIL, II/O = 0mA, Min Cycle 680 660 620 mA Standby (TTL) Supply Current ICC2 E ³ VIH, VIN VIL or VIN ³ VIH, f=ØMHz 120 120 120 mA 40 40 mA Full Standby CMOS Supply Current Input Leakage Current Output Leakage Current £ ICC3 E ³ VCC-0.2V VIN ³ VCC-0.2V or VIN 0.2V ILI VIN = 0V to VCC 40 £ ILO V I/O = 0V to VCC Output High Volltage VOH IOH = -4.0mA Output Low Voltage VOL IOL = 8.0mA ±10 µA ±10 µA 0.4 V 2.4 V Typical:TA=25°C,VCC=3.3V CAPACITANCE TRUTH TABLE G X H L X E H L L L W Mode X Standby H Output Deselect H Read L Write (f=1.0MHz, VIN=VCC or VSS) Output Power High Z ICC2,ICC3 High Z ICC1 DOUT ICC1 DIN ICC1 Parameter Sym Max Unit Address Lines CA 40 pF Data Lines CD/Q 10 pF Write & Output Enable Lines W, G 40 pF Chip Enable Lines EØ-E3 8 pF These parameters are sampled, not 100% tested. White Electronic Designs Corporation Westborough MA (508) 485-4000 2 EDI8L32128V White Electronic Designs AC CHARACTERISTICS READ CYCLE Symbol 12ns Parameter JEDEC Alt. Min Read Cycle Time TAVAV TRC 12 Max 15ns Min Max 15 20ns Min Max 20 Units ns Address Access Time TAVQV TAA 12 15 20 ns Chip Enable Access Time TELQV TACS 8 10 20 ns Chip Enable to Output in Low Z (1) TELQX TCLZ Chip Disable to Output in High Z (1) TEHQZ TCHZ Output Hold from Address Change TAVQX TOH Output Enable to Output Valid TGLQV TOE Output Enable to Output in Low Z (1) TGLQX TOLZ Output Disable to Output in High Z(1) TGHQZ TOHZ 2 3 7 3 3 8 3 5 2 10 3 6 2 4 ns ns 8 2 5 ns ns ns 8 ns Note 1: Parameter guaranteed, but not tested. READ CYCLE 1 - W HIGH, G, E LOW READ CYCLE 2 - W HIGH 3 White Electronic Designs Corporation (508) 485-4000 www.whiteedc.com EDI8L32128V White Electronic Designs AC CHARACTERISTICS WRITE CYCLE Symbol JEDEC Alt. TAVAV TWC TELWH TCW TELEH TCW Address Setup Time TAVWL TAS TAVEL TAS Address Valid to End of Write TAVWH TAW TAVEH TAW Write Pulse Width TWLWH TWP TWLEH TWP Write Recovery Time TWHAX TWR TEHAX TWR Data Hold Time TWHDX TDH TEHDX TDH Write to Output in High Z (1) TWLQZ TWHZ Data to Write Time TDVWH TDW TDVEH TDW Output Active from End of Write (1) TWHQX TWLZ Parameter Write Cycle Time Chip Enable to End of Write 12ns Min Max 12 8 8 0 0 9 9 9 9 0 0 0 0 0 5 5 5 2 Note 1: Parameter guaranteed, but not tested. WRITE CYCLE 1 - W CONTROLLED White Electronic Designs Corporation Westborough MA (508) 485-4000 4 15ns 20ns Min Max Min 15 20 9 15 9 15 0 0 0 0 10 15 10 15 10 15 10 15 0 0 0 0 0 0 0 0 0 6 0 6 8 6 8 2 2 Max 7 Units ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns EDI8L32128V White Electronic Designs WRITE CYCLE 2 - E CONTROLLED ORDERING INFORMATION Commercial (0°C to 70°C) Part Number Industrial (-40°C to +85°C) Speed (ns) Package No. EDI8L32128V12AC 12 99 EDI8L32128V15AC 15 EDI8L32128V20AC 20 Part Number Speed (ns) Package No. EDI8L32128V12AI 12 99 99 EDI8L32128V15AI 15 99 99 EDI8L32128V20AI 20 99 PACKAGE DESCRIPTION Package No. 99 68 Lead PLCC JEDEC MO-47AE THETA JA=40°C/W THETA JC=15°C/W WEIGHT =4.2G 5 White Electronic Designs Corporation (508) 485-4000 www.whiteedc.com White Electronic Designs Figure 1 Figure 2 White Electronic Designs Corporation Westborough MA (508) 485-4000 6 EDI8L32128V