EM641FT8T Series Low Power, 512Kx8 SRAM Document Title 512K x8 bit Low Power Full CMOS Static RAM Revision History Revision No. History Draft Date Remark 0.0 Initial Draft Nov. 20, 2007 Preliminary 0.1 0.1 Revision IDR Current from 1.5uA to 7uA Dec. 5, 2007 tOE from 25nsec to 30nsec with 55ns part 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 EM641FT8T Series Low Power, 512Kx8 SRAM 512K x8 Bit Low Power CMOS Static RAM GENERAL DESCRIPTION FEATURES - Very high speed : 45ns - Process Technology : 0.15um Full CMOS - Organization : 512K x8 - Power Supply Voltage => EM641FT8T : 4.5V~5.5V - Low Data Retention Voltage : 1.5V (MIN) - Three state output and TTL Compatible - Packaged product designed for 45/55/70ns - Package Type: 32-TSOP The EM641FT8T 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. The EM641FT8T is available in KGD, JEDEC standard 32 pin 8.0mm x 20.0mm TSOP package. PRODUCT FAMILY Power Dissipation Operating Temperature Vcc Range Speed EM641FT8T-45LF Industrial (-40 ~ 85oC) 4.5V~5.5V 45ns EM641FT8T-55LF Industrial (-40 ~ 85oC) 4.5V~5.5V EM641FT8T-70LF Industrial (-40 ~ 85oC) 4.5V~5.5V PIN DESCRIPTION A11 A9 A8 A13 WE A17 A15 VCC A18 A16 A14 A12 A7 A6 A5 A4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Operating (ICC1.Max) PKG Type 1.5 µA 7mA 32-TSOP 55ns 1.5 µA 7mA 32-TSOP 70ns 1.5 µA 7mA 32-TSOP Standby (ISB1, Typ.) FUNCTIONAL BLOCK DIAGRAM 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 EM641FT8T Pre-charge Circuit OE A10 CS I/O7 I/O6 I/O5 I/O4 I/O3 VSS I/O2 I/O1 I/O0 A0 A1 A2 A3 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 VCC VSS Row Select Product Family I/O0 ~ I/O7 Data Cont Memory Array 512K x 8 I/O Circuit Column Select A11 A12 A13 A14 A15 A16 A17 A18 Name Function Name Function CS Chip select input VCC Power Supply WE OE Output Enable input VSS Ground OE WE Write Enable input A0~A18 Address Inputs I/O0~I/O7 Data Inputs/Outputs CS 2 Control Logic EM641FT8T Series Low Power, 512Kx8 SRAM ABSOLUTE MAXIMUM RATINGS Parameter Symbol Voltage on Any Pin Relative to VSS Minimum Unit VIN, VOUT -0.5 to 6.0V V Voltage on Vcc supply relative to VSS VCC -0.5 to 6.0V V Power Dissipation PD 1.0 W Operating Temperature TA -40 to 85 o C Note : 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 I/O0-7 Mode Power H X X High-Z Deselected/ Power down Stand by L L H Data Out Read Active L X L Data In Write Active L H H High-Z Selected, Output Disabled Active Note : X means don’t care. (Must be low or high state) 3 EM641FT8T Series Low Power, 512Kx8 SRAM RECOMMENDED DC OPERATING CONDITIONS 1) Parameter Symbol Supply voltage VCC 2) Min Typ Max Unit 4.5 - 5.5 V Ground VSS 0 0 0 V Input high voltage VIH 2.2 - VCC + 0.53) V Input low voltage VIL -0.54) - 0.6 V Notes : 1. TA= -40 to 85oC, otherwise specified 2. Overshoot: VCC +1.0 V in case of pulse width < 20ns 3. Undershoot: -1.0 V in case of pulse width < 20ns 4. Overshoot and undershoot are sampled, not 100% tested. CAPACITANCE (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 Note : Capacitance is sampled, not 100% tested. DC ELECTRICAL CHARACTERISTICS (TA = -40oC to +85oC) 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 VIO=VSS to VCC -1 - 1 uA Operating power supply ICC IIO=0mA, CS=VIL, VIN=VIH or VIL - - 5 mA ICC1 Cycle time=1µs, 100% duty, IIO=0mA, CS<0.2V, VIN<0.2V or VIN>VCC-0.2V - - 7 mA 45ns - - 65 ICC2 Cycle time = Min, IIO=0mA, 100% duty, CS=VIL, VIN=VIL or VIH 55ns - - 55 70ns - - 45 Average operating current mA Output low voltage VOL IOL = 2.1mA - - 0.4 V Output high voltage VOH IOH = -1.0mA 2.4 - - V Standby Current (TTL) ISB CS=VIH, Other inputs=VIH or VIL - - 1 mA - 1.51) 20 uA CS>VCC-0.2V Standby Current (CMOS) ISB1 Other inputs = 0~VCC (Typ. condition : VCC=5V @ 25oC) (Max. condition : VCC=5.5V @ 85oC) NOTES : 1.Typical values are measured at Vcc=5V, TA=25oC and not 100% tested. 4 LF EM641FT8T Series Low Power, 512Kx8 SRAM AC OPERATING CONDITIONS Test Conditions (Test Load and Test Input/Output Reference) VTM3) Input Pulse Level : 0V to VCC Input Rise and Fall Time : 1V/ns Input and Output reference Voltage : 0.5VCC Output Load (See right) : CL1) = 100pF + 1 TTL (70ns) CL1) = 30pF + 1 TTL (45ns/55ns) R12) Output Notes : R22) CL1) 1. Including scope and Jig capacitance 2. R1 = 1800 ohm, R2 = 990 ohm 3. VTM = VCC 4. CL = 5pF + 1 TTL (measurement with tLZ, tOLZ, tHZ, tOHZ, tWHZ) READ CYCLE (Vcc = 4.5V to 5.5V, 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 - 25 - 30 - 35 ns Chip select to low-Z output tLZ 10 - 10 - 10 - 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 Output disable to high-Z output tOHZ 0 15 0 20 0 25 ns Output hold from address change tOH 10 - 10 - 10 - ns WRITE CYCLE (Vcc = 4.5V to 5.5V, GND = 0V, TA = -40oC to +85oC) Parameter Symbol 45ns 55ns 70ns Min Max Min Max Min Max Unit 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 Write pulse width tWP 35 - 40 - 50 - ns Write recovery time tWR 0 - 0 - 0 - ns Write to ouput high-Z tWHZ 0 15 0 20 0 20 ns Data to write time overlap tDW 25 Data hold from write time tDH 0 - 0 - 0 - ns End of write to output low-Z tOW 5 - 5 - 5 - ns 5 25 30 ns EM641FT8T Series Low Power, 512Kx8 SRAM TIMING DIAGRAMS TIMING WAVEFORM OF READ CYCLE(1) (Address Transition Controlled) tRC Address tAA tOH Data Out Data Valid Previous Data Valid TIMING WAVEFORM OF READ CYCLE(2) (OE Controlled) tRC Address tAA tOH tCO CS tHZ tOE OE tOHZ tOLZ Data Out High-Z Data Valid tLZ High-Z NOTES (READ CYCLE) 1. tHZ and tOHZ are defined as the outputs achieve the open circuit conditions and are not referenced 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 EM641FT8T Series Low Power, 512Kx8 SRAM TIMING WAVEFORM OF WRITE CYCLE(1) (WE Controlled, OE High During WRITE) tWC Address tCW2) tWR4) CS tAW tWP1) WE tAS3) OE Data in tDH tDW High-Z tOHZ Data out High-Z Data Valid tOW Data Undefined TIMING WAVEFORM OF WRITE CYCLE(2) (CS Controlled) tWC Address tAS3) tCW2) tWR4) CS tAW tWP1) WE tDW Data in Data out Data Valid High-Z High-Z 7 tDH EM641FT8T Series Low Power, 512Kx8 SRAM TIMING WAVEFORM OF WRITE CYCLE(3) (WE Controlled, OE LOW) tWC Address tWR4) tCW2) CS tAW tAS3) tWP1) WE tDW Data in High-Z Data Valid tWHZ Data out Data Undefined NOTES (WRITE CYCLE) 1. A write occurs during the overlap(tWP) of low CS and low WE. A write begins at the latest transition among CS goes low and WE goes low. 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 of write to the address change. tWR applied in case a write ends as CS or WE going high. 8 tDH High-Z EM641FT8T Series Low Power, 512Kx8 SRAM DATA RETENTION CHARACTERISTICS Parameter Symbol VCC for Data Retention VDR Data Retention Current IDR Chip Deselect to Data Retention Time tSDR Operation Recovery Time tRDR Test Condition ISB1 Test Condition (Chip Disabled) 1) ISB1 Test Condition (Chip Disabled) 1) See data retention wave form Min Typ2) Max Unit 1.5 - - V - 1 7 µA 0 - - tRC - - NOTES 1. See the ISB1 measurement condition of data sheet page 4. 2. Typical value is measured at TA=25oC and not 100% tested. DATA RETENTION WAVE FORM tSDR Data Retention Mode Vcc 5V 2.2V VDR VDR CS GND 1.5V CS > Vcc-0.2V 9 tRDR ns EM641FT8T Series Low Power, 512Kx8 SRAM PACKAGE DIMENSIONS 32Pin - TSOP Type1 Unit : millimeters/Inches 10 EM641FT8T Series Low Power, 512Kx8 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 5. Technology 8. Generation 6. Operating Voltage 7. Organization 1. Memory Component EM --------------------- Memory 7. Organization 8 ---------------------- x8 bit 16 ---------------------- x16 bit 2. Product Type 6 ------------------------ SRAM 8. Generation Blank ----------------A ----------------------B ----------------------C ----------------------D ----------------------E ----------------------F ----------------------G ---------------------- 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) 1st generation 2nd generation 3rd generation 4th generation 5th generation 6th generation 7th generation 8th generation 9. Package Blank ---------------- KGD, 48&36FpBGA S ---------------------- 32 sTSOP1 T ---------------------- 32 TSOP1 U ---------------------- 44 TSOP2 V --------------------- 32 SOP 5. Technology F ------------------------- Full CMOS 10. Speed 45 ---------------------55 ---------------------70 ---------------------85 ---------------------10 ---------------------12 ---------------------- 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