Preliminary EMP216MFAW Series 2Mx16 Pseudo Static RAM Document Title 2M x 16 bit Pseudo SRAM ( EMP216MFAW Series ) Specification Revision History Revision No. History Draft Date Remark 0.0 Initial Draft Oct. 24 , 2005 Preliminary Emerging Memory & Logic Solutions Inc. 4F Korea Construction Financial Cooperative B/D, 301-1 Yeon-Dong, Jeju-Si, Jeju-Do, Rep.of Korea Tel : +82-64-740-1700 Fax : +82-64-740-1749~1750 / Homepage : www.emlsi.com Zip Code : 690-717 The attached datasheets 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. Rev 0.0 Preliminary EMP216MFAW Series 2Mx16 Pseudo Static RAM 2Mb x16 Pseudo Static RAM Specification GENERAL DESCRIPTION The EMP216MFAW series is 33,554,432 bits of Pseudo SRAM which uses DRAM type memory cells, but this device has refresh-free operation and extreme low power consumption technology. Furthermore the interface is compatible to a low power Asynchronous type SRAM. The EMP216MFAW is organized as 2,097,152 Words x 16 bit. FEATURES - Organization :2M x16 - Power Supply Voltage : 2.7 ~ 3.3V - Separated I/O power(VccQ) & Core power(Vcc) - Three state outputs - Byte read/write control by UB# /LB# - Support Direct Deep Power Down control by ZZ# and Auto-TCSR for power saving PRODUCT FAMILY Part Number Operating Temp. EMP216MFAW-70E -25oC to 85oC Power Supply 2.7V to 3.3V Speed (tRC) 70ns Power Dissipation Standby (ISB1, Max.) Operating (ICC2, Max.) 100uA 25mA FUNCTION BLOCK DIAGRAM ZZ# CS# UB# LB# WE# OE# CONTROL LOGIC A0~A20 ADDRESS DECODER DQ0~ DQ15 Self-Refresh CONTROL ROW SELECT COLUMN SELECT Memory Array 2M X 16 Din/Dout BUFFER I/O CIRCUIT Rev 0.0 Preliminary EMP216MFAW Series 2Mx16 Pseudo Static RAM 2Mb x16 Pseudo Static RAM GENERAL WAFER SPECIFICATIONS - Process Technology : 0.125um CMOS Deep trench process - 3 Metal layers including local inter-connection - Wafer thickness : 725 +/- 25um - Wafer Diameter : 8-inch PAD DESCRIPTION Name Function Name Function CS# Chip select inputs LB# Lower byte (DQ0~7) OE# Output enable input UB# Upper byte (DQ8~15) WE# Write enable input VCC Power supply ZZ# Low Power Control VCCQ I/O Power supply DQ0-15 Data In-out VSS(Q) Ground A0-20 NC Address inputs No connection Rev 0.0 Preliminary EMP216MFAW Series 2Mx16 Pseudo Static RAM ABSOLUTE MAXIMUM RATINGS 1) Parameter Symbol Ratings Unit Voltage on Any Pin Relative to Vss VIN, VOUT -0.2 to VCCQ+0.3V V Voltage on Vcc supply relative to Vss VCC, VCCQ -0.22) to 3.6V V Power Dissipation Storage Temperature Operating Temperature PD 1.0 TSTG -65 to 150 o C TA -25 to 85 o C W 1. 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. 2. Undershoot at power-off : -1.0V in case of pulse width < 20ns FUNCTIONAL DESCRIPTION CS# ZZ# OE# WE# LB# UB# DQ0~7 DQ8~15 Mode Power H H X X X X High-Z High-Z Deselected Stand by X L X X X X High-Z High-Z Deselected Deep Power Down X H X X H H High-Z High-Z Deselected Stand by L H H H L X High-Z High-Z Output Disabled Active L H H H X L High-Z High-Z Output Disabled Active L H L H L H Data Out High-Z Lower Byte Read Active L H L H H L High-Z Data Out Upper Byte Read Active L H L H L L Data Out Data Out Word Read Active L H X L L H Data In High-Z Lower Byte Write Active L H X L H L High-Z Data In Upper Byte Write Active L H X L L L Data In Data In Word Write Active Note: X means don’t care. (Must be low or high state) Rev 0.0 Preliminary EMP216MFAW Series 2Mx16 Pseudo Static RAM RECOMMENDED DC OPERATING CONDITIONS 1) Parameter Symbol Min Typ Max Unit VCC 2.7 3.0 3.3 V VCCQ 2.7 3.0 3.3 V VSS, VSSQ 0 0 0 V Input high voltage VIH 0.8 * VCCQ - VCCQ + 0.22) V Input low voltage VIL - 0.2 * VCCQ V Supply voltage Ground 1. 2. 3. 4. -0.23) TA= -25 to 85oC, otherwise specified Overshoot: VCC +1.0 V in case of pulse width < 20ns Undershoot: -1.0 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 - 8 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 VCCQ , VCC=VCCmax -1 - 1 uA Output leakage current ILO CS#=VIH , ZZ#=VIH , OE#=VIH or WE#=VIL , VIO=VSS to VCCQ , VCC=VCCmax -1 - 1 uA ICC1 Cycle time=1µs, 100% duty, IIO=0mA, CS#<0.2V, ZZ#=VIH , VIN<0.2V or VIN>VCCQ-0.2V - - 3 mA ICC2 Cycle time = Min, IIO=0mA, 100% duty, CS#=VIL, ZZ#=VIH, VIN=VIL or VIH - - 25 mA Output low voltage VOL IOL = 0.5mA, VCC=VCCmin - - 0.2*VCCQ V Output high voltage VOH IOH = -0.5mA, VCC=VCCmin 0.8*VCCQ - - V Standby Current (CMOS) ISB - - 100 uA Average operating current CS#,ZZ#>VCCQ-0.2V, Other inputs = 0 ~ VCCQ (Typ. condition : VCC=3.0V @ 25oC) (Max. condition : VCC=3.3V @ 85oC) 1. Maximum Icc specifications are tested with VCC = VCCmax. Rev 0.0 Preliminary EMP216MFAW Series 2Mx16 Pseudo Static RAM AC OPERATING CONDITIONS Test Conditions (Test Load and Test Input/Output Reference) Dout Input Pulse Level : 0.2V to VCCQ-0.2V Input Rise and Fall Time : 5ns Input and Output reference Voltage : VCCQ/2 CL1) 1) Output Load (See right) : CL = 30pF 1. Including scope and Jig capacitance AC CHARACTERISTICS (Vcc = 2.7 to 3.3V, Gnd = 0V, TA = -25C to +85oC) Symbol Parameter List Read Write Speed Min Max Unit Read Cycle Time tRC 70 20k ns Address access time tAA - 70 ns Chip enable to data output tCO - 70 ns Output enable to valid output tOE - 25 ns UB#, LB# enable to data output tBA - 70 ns Chip enable to low-Z output tLZ 10 - ns UB#, LB# enable to low-Z output tBLZ 10 - ns Output enable to low-Z output tOLZ 5 - ns Chip disable to high-Z output tHZ 0 15 ns UB#, LB# disable to high-Z output tBHZ 0 15 ns Output disable to high-Z output tOHZ 0 15 ns Output hold from Address change tOH 5 - ns Write Cycle Time tWC 70 20k ns Chip enable to end of write tCW 60 - ns Address setup time tAS 0 - ns Address valid to end of write tAW 60 - ns UB#, LB# valid to end of write tBW 60 - ns Write pulse width tWP 50 - ns Write recovery time tWR 0 - ns Write to output high-Z tWHZ 0 15 ns Data to write time overlap tDW 20 - ns Data hold from write time tDH 0 - ns End write to output low-Z tOW 5 - ns Rev 0.0 Preliminary EMP216MFAW Series 2Mx16 Pseudo Static RAM TIMING DIAGRAMS READ CYCLE (1) (Address controlled, CS#=OE#=VIL, ZZ#=WE#=VIH, UB# or/and LB#=VIL) tRC Address tAA tOH Data Out Data Valid Previous Data Valid READ CYCLE (2) (ZZ#=WE#=VIH) tRC Address tAA CS# tOH tCO tHZ tBA LB#, UB# tBHZ tOE OE# Data Out High-Z tOLZ tBLZ tOHZ Data Vaild tLZ NOTES (READ CYCLE) 1. tHZ , tBHZ and tOHZ are defined as the time at which the outputs achieve the open circuit conditions and are not referenced to output voltage levels. 2. Do not Access device with cycle timing shorter than tRC for continuous periods > 20us. Rev 0.0 Preliminary EMP216MFAW Series 2Mx16 Pseudo Static RAM WRITE CYCLE (1) (WE# controlled, ZZ#=VIH) tWC Address tAW tCW CS# tBW LB#,UB# WE# tAS Data In tWR tWP tDH tDW High-Z Data Valid tWHZ Data Out tOW Data Undefined WRITE CYCLE (2) (CS# controlled, ZZ#=VIH) tWC Address tAS CS# tWR tCW tAW LB#,UB# tBW WE# tWP tDW Data In Data Out tDH Data Valid High-Z Rev 0.0 Preliminary EMP216MFAW Series 2Mx16 Pseudo Static RAM WRITE CYCLE (3) (UB#,LB# controlled, ZZ#=VIH) tWC Address tWR tCW CS# tAW LB#,UB# tAS tBW tWP WE# tDW Data Valid Data In Data Out tDH High-Z NOTES (WRITE CYCLE) 1. A write occurs during the overlap(tWP) of low CS#, low WE# and low UB# or LB#. A write begins at the last transition among low CS# and low WE# with asserting UB# or LB# low for single byte operation or simultaneously asserting UB# and LB# low for word operation. A write ends at the earliest transition among high CS# and high WE#. The tWP is measured from the beginning of write to the end of write. 2. tCW is measured from CS# going low to end od 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. 5. Do not Access device with cycle timing shorter than tWC for continuous periods > 20us. Rev 0.0 Preliminary EMP216MFAW Series 2Mx16 Pseudo Static RAM LOW POWER MODES ~ ~~ ~ Deep Power Down Mode Entry/Exit CS# tZZCS tCSZZ tZZP ~ ~ ZZ# Deep Power Down Entry tR Normal operation Deep Power Down Exit NOTES ( DEEP POWER DOWN ) During Deep Power Down mode, all referesh related activity are disabled. Parameter Description Min Max Unit tZZCS ZZ# low to CS# low 0 - ns tCSZZ CS# high to ZZ# high 0 - ns tR Operation Recovery Time 200 - us tZZP ZZ# pulse width 20 - ns Low Power Mode Characteristics Parameter Symbol Deep Power Down Current IZZ Test Conditions ZZ# < 0.2V, Other inputs = 0 ~ VCCQ (Max. condition : VCC=3.3V @ 85oC) Min Typ Max Unit - - 10 uA Rev 0.0 Preliminary EMP216MFAW Series 2Mx16 Pseudo Static RAM TIMING WAVEFORM OF POWER UP 200us VCC(Min.) VCC CS# Power Up Mode Normal Operation NOTE ( POWER UP ) 1. After Vcc reaches Vcc(Min.) , wait 200us with CS# high. Then you get into the normal operation. Rev 0.0