EDI88128V-RP HI-RELIABILITY PRODUCT 128Kx8 Plastic Monolithic 3.3V SRAM FEATURES ■ Access Times of 15, 20, 25ns WEDC’s ruggedized plastic 128Kx8 SRAM allows the user to capitalize on the cost advantage of using a plastic component while not sacrificing all of the reliability available in a full military device. ■ TTL Compatible Inputs and Outputs ■ Fully Static Operation ■ Center Power and Ground Pins Extended temperature testing is performed with the test patterns developed for use on WEDC’s fully compliant 128Kx8 SRAMs. WEDC fully characterizes devices to determine the proper test patterns for testing at temperature extremes. This is critical because the operating characteristics of device change when it is operated beyond the commercial temperature range. Using commercial test methods will not guarantee a device that operates reliably in the field at temperature extremes. Users of WEDC’s ruggedized plastic benefit from WEDC’s extensive experience in characterizing SRAMs for use in military systems. ■ Industrial and Military Temperature Ranges ■ JEDEC Approved Revolutionary Pinout • 32 pin Plastic SOJ (Package 7) ■ Single +3.3V (±10%) Supply Operation FIG. 1 PIN CONFIGURATION PIN DESCRIPTION TOP VIEW A0 A1 A2 A3 CS I/O0 I/O1 VCC VSS I/O2 I/O3 WE A4 A5 A6 A7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 A16 A15 A14 A13 OE I/O7 I/O6 VSS VCC I/O5 I/O4 A12 A11 A10 A9 A8 AØ-16 BLOCK DIAGRAM I/O0-7 Data Inputs/Outputs A0-16 Address Inputs WE Write Enable CS Chip Select OE Output Enable VCC Power (+3.3V ±10%) VSS Ground NC Not Connected Memory Array Address Buffer Address Decoder I/O Circuits I/OØ-7 WE CS OE July 1999 Rev. 1 1 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com EDI88128V-RP TRUTH TABLE ABSOLUTE MAXIMUM RATINGS Parameter Voltage on any pin relative to Vss Unit OE CS WE Mode Output Power V X H L X H L L L X H H L Standby Output Deselect Read Write High Z High Z Data Out Data In Icc 2 , Icc 3 Icc 1 Icc 1 Icc 1 -0.5 to 4.6 Operating Temperature TA (Ambient) 0 to +70 °C -40 to +85 °C Military -55 to +125 °C Storage Temperature, Plastic -65 to +125 °C Power Dissipation 1.5 W Output Current 20 mA Junction Temperature, TJ 175 °C Commercial Industrial RECOMMENDED OPERATING CONDITIONS Parameter NOTE: 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. Symbol Min Typ Max Supply Voltage VCC 3.0 3.3 3.6 Unit V Supply Voltage VSS 0 0 0 V Input High Voltage VIH 2.2 — 6.0 V Input Low Voltage VIL -0.3 — +0.8 V CAPACITANCE (TA = +25°C) Parameter Symbol Condition Max Unit Address Lines CI VIN = Vcc or Vss, f = 1.0MHz 6 pF Data Lines CO VOUT = Vcc or Vss, f = 1.0MHz 8 pF These parameters are sampled, not 100% tested. DC CHARACTERISTICS (VCC = 5V, TA = -55°C to +125°C) Parameter Symbol Conditions Units Min Max µA Input Leakage Current ILI VIN = 0V to VCC -10 +10 Output Leakage Current ILO VI/O = 0V to VCC -10 +10 µA Operating Power Supply Current I CC1 WE, CS = VIL, II/O = 0mA, Min Cycle — 170 mA Standby (TTL) Power Supply Current I CC2 CS ≥ VIH, VIN ≤ VIL, VIN ≥ VIH — 30 mA Full Standby Power Supply Current I CC3 CS ≥ VCC -0.2V VIN ≥ Vcc -0.2V or VIN ≤ 0.2V — 10 mA Output Low Voltage VOL IOL = 8.0mA — 0.4 V Output High Voltage VOH IOH = -4.0mA 2.4 — V NOTE: DC test conditions: VIL = 0.3V, VIH = Vcc -0.3V White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com 2 EDI88128V-RP AC CHARACTERISTICS – READ CYCLE (VCC = 5.0V, VSS = 0V, TA = -55°C to +125°C) Parameter Symbol JEDEC Alt. Min 15ns Read Cycle Time tAVAV tRC 15 Address Access Time tAVQV tAA Chip Enable Access Time tELQV tACS Chip Enable to Output in Low Z (1) tELQX tCLZ 3 Chip Disable to Output in High Z (1) tEHQZ tCHZ 0 Output Hold from Address Change tAVQX tOH 3 20ns Max Min 20 tGLQV tOE tGLQX tOLZ 0 Output Disable to Output in High Z (1) tGHQZ tOHZ 0 20 3 7 Units 25 ns 25 ns 3 0 8 3 ns 0 10 ns 3 7 ns 8 0 7 Max ns 20 15 Output Enable to Output in Low Z (1) Min 25 15 Output Enable to Output Valid 25ns Max 10 ns 0 0 8 ns 0 10 ns 1. This parameter is guaranteed by design but not tested. AC CHARACTERISTICS – WRITE CYCLE (VCC = 5.0V, VSS = 0V, T A = -55°C to +125°C) Symbol 15ns 20ns Max JEDEC Alt. Min Write Cycle Time tAVAV tWC 15 20 25 ns Chip Enable to End of Write tELWH tELEH tCW tCW 10 10 12 12 17 17 ns ns Address Setup Time tAVWL tAVEL tAS tAS 0 0 0 0 0 0 ns ns Address Valid to End of Write tAVWH tAVEH tAW tAW 10 10 12 12 17 17 ns ns Write Pulse Width tWLWH tWLEH tWP tWP 10 10 12 12 17 17 ns ns Write Recovery Time tWHAX tEHAX tWR tWR 0 0 0 0 0 0 ns ns Data Hold Time tWHDX tEHDX tDH tDH 0 0 0 0 0 0 ns ns 7 Min 25ns Parameter 0 Max 8 Min 0 Max 10 Units Write to Output in High Z (1) tWLQZ tWHZ 0 Data to Write Time tDVWH tDVEH tDW tDW 7 7 10 10 12 12 ns ns ns Output Active from End of Write (1) tWHQX tWLZ 0 0 0 ns 1. This parameter is guaranteed by design but not tested. AC TEST CONDITIONS Figure 1 Figure 2 Vcc 480Ω Input Pulse Levels Input Rise and Fall Times Input and Output Timing Levels Output Load Vcc 480Ω VSS to 3.0V 5ns 1.5V Figure 1 NOTE: For tEHQZ, tGHQZ and tWLQZ, CL = 5pF Figure 2) Q Q 255Ω 30pF 255Ω 5pF 3 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com EDI88128V-RP FIG. 2 TIMING WAVEFORM - READ CYCLE tAVAV ADDRESS tAVQV tAVAV ADDRESS ADDRESS 1 tAVQV DATA I/O CS tELQV tELQX ADDRESS 2 tAVQX DATA 1 tEHQZ OE tGLQV tGLQX DATA 2 DATA I/O READ CYCLE 1 (WE HIGH; OE, CS LOW) READ CYCLE 2 (WE HIGH) FIG. 3 WRITE CYCLE - WE CONTROLLED tAVAV ADDRESS tAVWH tELWH tWHAX CS tAVWL tWLWH WE tDVWH DATA IN tWHDX DATA VALID tWLQZ tWHQX HIGH Z DATA OUT WRITE CYCLE 1, WE CONTROLLED FIG. 4 WRITE CYCLE - CS CONTROLLED tAVAV WS32K32-XHX ADDRESS tAVEH tELEH tEHAX CS tAVEL tWLEH WE tDVEH DATA IN DATA VALID HIGH Z DATA OUT WRITE CYCLE 2, CS CONTROLLED White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com tEHDX 4 tGHQZ EDI88128V-RP PACKAGE 7: 32 PIN PLASTIC SOJ 0.835 0.819 0.146 0.130 0.409 0.394 0.448 0.422 0.374 0.358 0.045 0.033 Pin 1 Indicator 0.031 0.024 0.021 0.013 0.050 Typ 0.025 Min ALL DIMENSIONS ARE IN INCHES ORDERING INFORMATION EDI 8 8 128 V X X X WHITE ELECTRONIC DESIGNS SRAM ORGANIZATION, 128Kx8 3.3V POWER SUPPLY ACCESS TIME (ns) PACKAGE TYPE: M = 32 pin Plasticic SOJ (Package 7) DEVICE GRADE: M = Military Screened I = Industrial -55°C to +125°C -40°C to +85°C 5 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com