EM681FV16AU Series Low Power, 512Kx16 SRAM Document Title 512K x16 bit Low Power and Low Voltage Full CMOS Static RAM Revision History2.1 Revision No. History Draft Date Remark 0.0 Initial Draft Oct. 26, 2006 Preliminary 0.1 0.1 Revision Production code change from EM681FV16U-45LL to EM681FV16U-45LF Jan. 18, 2007 0.2 0.2 Revision Production code change from EM681FV16U-45LF to EM681FV16AU-45LF April. 10, 2007 0.3 0.3 Revision Product code table update June 15, 2007 0.4 0.4 Revision Fix typo error Nov. 12, 2007 Emerging Memory & Logic Solutions Inc. 4F Korea Construction Financial Cooperative B/D, 301-1 Yeon-Dong, Jeju-Si, Jeju-Do, Rep.of Korea Tel : +82-64-740-1712 Fax : +82-64-740-1749~1750 / Homepage : www.emlsi.com Zip Code : 690-719 The attached data sheets are provided by EMLSI reserve the right to change the specifications and products. EMLSI will answer to your questions about device. If you have any questions, please contact the EMLSI office. 1 EM681FV16AU Series Low Power, 512Kx16 SRAM FEATURES GENERAL DESCRIPTION • • • • • • The EM681FV16AU is fabricated by EMLSI’s advanced full CMOS process technology. The families support industrial temperature range and Chip Scale Package for user flexibility of system design. The families also supports low data retention voltage for battery back-up operation with low data retention current. Process Technology : 0.15µm Full CMOS Organization : 512K x 16 bit Power Supply Voltage : 2.7V ~ 3.6V Low Data Retention Voltage : 1.5V (Min.) Three state output and TTL Compatible Package Type : 44-TSOP2 PRODUCT FAMILY Power Dissipation Product Family Operating Temperature Vcc Range Speed Standby (ISB1, Typ.) Operating (ICC1.Max) PKG Type EM681FV16AU-45LF Industrial (-40 ~ 85oC) 2.7V~3.6V 45ns 2 µA 4mA 44-TSOP2 EM681FV16AU-55LF Industrial (-40 ~ 85oC) 2.7V~3.6V 55ns 2 µA 4mA 44-TSOP2 EM681FV16AU-70LF Industrial (-40 ~ 85oC) 2.7V~3.6V 70ns 2 µA 4mA 44-TSOP2 FUNCTIONAL BLOCK DIAGRAM PIN DESCRIPTION Pre-charge Circuit A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 Row Select VCC I/O0 ~ I/O7 Data Cont Data Cont I/O8 ~ I/O15 VSS Memory Array 2048 x 4096 I/O Circuit Column Select A11 A12 A13 A14 A15 A16 A17 A18 44-TSOP2 : Top view Name Function Name Function CS Chip select inputs Vcc Power Supply OE Output Enable input Vss Ground WE Write Enable input UB Upper Byte (I/O8~15) Address Inputs LB Lower Byte (I/O0~7) NC No Connected A0~A18 I/O0~I/O15 Data Inputs/outputs WE OE UB LB CS 2 Control Logic EM681FV16AU Series Low Power, 512Kx16 SRAM ABSOLUTE MAXIMUM RATINGS * Parameter Symbol Minimum VIN, VOUT -0.2 to 4.0V V Voltage on Vcc supply relative to Vss VCC -0.2 to 4.0V V Power Dissipation PD 1.0 W Operating Temperature TA -40 to 85 Voltage on Any Pin Relative to Vss Unit o C * Stresses greater than those listed above “Absolute Maximum Ratings” may cause permanent damage to the device. Functional operation should be restricted to recommended operating condition. Exposure to absolute maximum rating conditions for extended periods may affect reliability. FUNCTIONAL DESCRIPTION CS OE WE LB UB I/O0-7 I/O8-15 Mode Power H X X X X High-Z High-Z Deselected Stand by X X X H H High-Z High-Z Deselected Stand by L H H X X High-Z High-Z Output Disabled Active L L H L H Data Out High-Z Lower Byte Read Active L L H H L High-Z Data Out Upper Byte Read Active L L H L L Data Out Data Out Word Read Active L X L L H Data In High-Z Lower Byte Write Active L X L H L High-Z Data In Upper Byte Write Active L X L L L Data In Data In Word Write Active Note: X means don’t care. (Must be low or high state) 3 EM681FV16AU Series Low Power, 512Kx16 SRAM RECOMMENDED DC OPERATING CONDITIONS 1) Parameter Symbol Min Supply voltage VCC 2.7 3.3 3.6 V Ground VSS 0 0 0 V Input high voltage VIH 2.2 - VCC + 0.22) V Input low voltage VIL -0.23) - 0.6 V 1. 2. 3. 4. Typ Max Unit TA= -40 to 85oC, otherwise specified Overshoot: VCC +2.0 V in case of pulse width < 20ns Undershoot: -2.0 V in case of pulse width < 20ns Overshoot and undershoot are sampled, not 100% tested. CAPACITANCE1) (f =1MHz, TA=25oC) Item Symbol Test Condition Min Max Unit Input capacitance CIN VIN=0V - 8 pF Input/Ouput capacitance CIO VIO=0V - 10 pF 1. Capacitance is sampled, not 100% tested DC AND OPERATING CHARACTERISTICS Parameter Symbol Test Conditions Min Typ Max Unit Input leakage current ILI VIN=VSS to VCC -1 - 1 uA Output leakage current ILO CS=VIH or OE=VIH or WE=VIL or LB=UB=VIH VIO=VSS to VCC -1 - 1 uA Operating power supply ICC IIO=0mA, CS=VIL, WE=VIH, VIN=VIH or VIL - - 2 mA ICC1 Cycle time=1µs, 100% duty, IIO=0mA, CS<0.2V, LB<0.2V or/and UB<0.2V, VIN<0.2V or VIN>VCC-0.2V - - 4 mA ICC2 Cycle time = Min, IIO=0mA, 100% duty, CS=VIL, LB=VIL or/and UB=VIL , VIN=VIL or VIH - - 45 35 25 mA Output low voltage VOL IOL = 2.1mA - - 0.4 V Output high voltage VOH IOH = -1.0mA 2.2 - - V Standby Current (TTL) ISB CS=VIH, Other inputs=VIH or VIL - - 0.5 mA - 2 15 uA Average operating current 45ns 55ns 70ns CS>VCC-0.2V Standby Current (CMOS) ISB1 Other inputs=0 ~ VCC LF (Typ. condition : VCC=3.3V @ 25oC) (Max. condition : VCC=3.6V @ 85oC) 4 EM681FV16AU Series Low Power, 512Kx16 SRAM AC OPERATING CONDITIONS VTM3) Test Conditions (Test Load and Test Input/Output Reference) R12) Input Pulse Level : 0.4 to 2.4V Input Rise and Fall Time : 5ns Input and Output reference Voltage : 1.5V Output Load (See right) : CL1) = 100pF + 1 TTL (70nsec) CL1) = 30pF + 1 TTL (45ns/55ns) 1. Including scope and Jig capacitance 2. R1=3070 ohm, R2=3150 ohm 3. VTM=2.8V 4. CL = 5pF + 1 TTL (measurement with tLZ, tHZ, tOLZ, tOHZ, tWHZ) R22) CL1) READ CYCLE (Vcc =2.7 to 3.6V, Gnd = 0V, TA = -40oC to +85oC) Parameter Symbol 45ns 55ns 70ns Min Max Min Max Min Max Unit Read cycle time tRC 45 - 55 - 70 - ns Address access time tAA - 45 - 55 - 70 ns Chip select to output tco - 45 - 55 - 70 ns Output enable to valid output tOE - 30 - 35 - 35 ns UB, LB access time tBA 70 ns Chip select to low-Z output tLZ 5 - 5 - 5 - ns UB, LB enable to low-Z output tBLZ 5 - 5 - 5 - ns Output enable to low-Z output tOLZ 5 - 5 - 5 - ns Chip disable to high-Z output tHZ 0 20 0 20 0 25 ns UB, LB disable to how-Z output tBHZ 0 20 0 20 0 25 ns Output disable to high-Z output tOHZ 0 20 0 20 0 25 ns tOH 10 - 10 - 10 - ns Output hold from address change 45 55 WRITE CYCLE (Vcc =2.7 to 3.6V, Gnd = 0V, TA = -40oC to +85oC) Parameter Symbol 45ns 55ns 70ns Unit Min Max Min Max Min Max Write cycle time tWC 45 - 55 - 70 - ns Chip select to end of write tCW 45 - 45 - 60 - ns Address setup time tAs 0 - 0 - 0 - ns Address valid to end of write tAW 45 - 45 - 60 - ns UB, LB valid to end of write tBW 45 - 45 - 60 - ns Write pulse width tWP 45 - 45 - 55 - ns Write recovery time tWR 0 - 0 - 0 - ns Write to ouput high-Z tWHZ 0 20 0 20 0 25 ns Data to write time overlap tDW 25 Data hold from write time tDH 0 - 0 End write to output low-Z tOW 5 - 5 30 5 30 - ns 0 - ns 5 - ns EM681FV16AU Series Low Power, 512Kx16 SRAM TIMING DIAGRAMS TIMING WAVEFORM OF READ CYCLE(1). (Address Controlled, CS=OE=VIL, UB or/and LB=VIL) tRC Address tAA tOH Data Out Previous Data Valid Data Valid TIMING WAVEFORM OF READ CYCLE(2) (WE = VIH) tRC Address tAA tOH tCO CS tHZ tBA UB,LB tBHZ tOE OE tOHZ tOLZ Data Out High-Z Data Valid tBLZ tWHZ tLZ NOTES (READ CYCLE) 1. tHZ and tOHZ are defined as the outputs achieve the open circuit conditions and are not referanced to output voltage levels. 2. At any given temperature and voltage condition, tHZ(Max.) is less than tLZ(Min.) both for a given device and from device to device interconnection. 6 EM681FV16AU Series Low Power, 512Kx16 SRAM TIMING WAVEFORM OF WRITE CYCLE(1) (WE CONTROLLED) tWC Address tCW(2) tWR(4) CS tAW tBW UB,LB tWP(1) WE tAS(3) Data in tDH tDW High-Z High-Z Data Valid tWHZ Data out tOW Data Undefined TIMING WAVEFORM OF WRITE CYCLE(2) (CS CONTROLLED) tWC Address tAS(3) tCW(2) tWR(4) CS tAW tBW UB,LB tWP(1) WE tDW Data in Data out Data Valid High-Z High-Z 7 tDH EM681FV16AU Series Low Power, 512Kx16 SRAM TIMING WAVEFORM OF WRITE CYCLE(3) (UB, LB CONTROLLED) tWC Address tCW(2) tWR(4) CS tAW tBW UB,LB tAS(3) tWP(1) WE tDW Data in Data out tDH Data Valid High-Z High-Z NOTES (WRITE CYCLE) 1. A write occurs during the overlap(tWP) of low CS and low WE. A write begins when CS goes low and WE goes low with asserting UB or LB for single byte operation or simultaneously asserting UB and LB for double byte operation. A write ends at the earliest transition when CS goes high and WE goes high. The tWP is measured from the beginning of write to the end of write. 2. tCW is measured from the CS going low to end of write. 3. tAS is measured from the address valid to the beginning of write. 4. tWR is measured from the end or write to the address change. tWR applied in case a write ends as CS or WE going high. 8 EM681FV16AU Series Low Power, 512Kx16 SRAM DATA RETENTION CHARACTERISTICS Parameter Symbol VCC for Data Retention VDR Data Retention Current IDR Chip Deselect to Data Retention Time tSDR Test Condition ISB1 Test Condition (Chip Disabled) 1) VCC=1.5V, ISB1 Test Condition (Chip Disabled) 1) Typ Max Unit 1.5 - 3.6 V - - 4 uA 0 - - tRC - - See data retention wave form tRDR Operation Recovery Time Min ns NOTES 1. See the ISB1 measurement condition of data sheet page 4. DATA RETENTION WAVE FORM tSDR Data Retention Mode Vcc 2.7V 2.2V VDR CS > Vcc-0.2V CS GND 9 tRDR EM681FV16AU Series Low Power, 512Kx16 SRAM PACKAGE DIMENSION 44 - TSOP2 (0.8mm pin pitch) 10 EM681FV16AU Series Low Power, 512Kx16 SRAM SRAM PART CODING SYSTEM EM X XX X X X XX X X - XX XX 1. EMLSI Memory 11. Power 2. Product Type 10. Speed 3. Density 4. Function 9. Package 8. Generation 5. Technology 7. Organization 6. Operating Voltage 7. Organization 8 ---------------------- x8 bit 16 ---------------------- x16 bit 1. Memory Component EM --------------------- Memory 2. Product Type 6 ------------------------ SRAM 8. Generation Blank ----------------- 1st generation A ----------------------- 2nd generation B ----------------------- 3rd generation C ----------------------- 4th generation D ----------------------- 5th generation E ----------------------- 6th generation F ----------------------- 7th generation G ---------------------- 8th generation 3. Density 1 ------------------------- 1M 2 ------------------------- 2M 4 ------------------------- 4M 8 ------------------------- 8M 4. Function 0 ----------------------- Dual CS 1 ----------------------- Single CS 2 ----------------------- Multiplexed 3 ------------- Single CS / LBB, UBB(tBA=tOE) 4 ------------- Single CS / LBB, UBB(tBA=tCO) 5 ------------- Dual CS / LBB, UBB(tBA=tOE) 6 ------------- Dual CS / LBB, UBB(tBA=tCO) 9. Package Blank ---------------- KGD, 48&36FpBGA S ---------------------- 32 sTSOP1 T ---------------------- 32 TSOP1 U ---------------------- 44 TSOP2 V ---------------------- 32 SOP 10. Speed 45 ---------------------55 ---------------------70 ---------------------85 ---------------------10 ---------------------12 ---------------------- 5. Technology F ------------------------- Full CMOS 6. Operating Voltage T ------------------------- 5.0V V ------------------------- 3.3V U ------------------------- 3.0V S ------------------------- 2.5V R ------------------------- 2.0V P ------------------------- 1.8V 45ns 55ns 70ns 85ns 100ns 120ns 11. Power LL ---------------------- Low Low Power LF ---------------------- Low Low Power(Pb-Free & Green) L ---------------------- Low Power S ---------------------- Standard Power 11