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.
0.0
History
Initial Draft Production code change from EM681FV16U-45LL to EM681FV16U-45LF Production code change from EM681FV16U-45LF to EM681FV16AU-45LF Product code table update Fix typo error
Draft Date
Oct. 26, 2006
Remark
Preliminary
0.1
0.1 Revision
Jan. 18, 2007
0.2 0.3 0.4
0.2 Revision 0.3 Revision 0.4 Revision
April. 10, 2007 June 15, 2007 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
• • • • • • 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
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.
PRODUCT FAMILY
Power Dissipation Product Family EM681FV16AU-45LF EM681FV16AU-55LF EM681FV16AU-70LF Operating Temperature Industrial (-40 ~ 85oC) Industrial (-40 ~ 85oC) Industrial (-40 ~ 85oC) Vcc Range Speed Standby (ISB1, Typ.) 2 µA 2 µA 2 µA Operating (ICC1.Max) 4mA 4mA 4mA PKG Type
2.7V~3.6V 2.7V~3.6V 2.7V~3.6V
45ns 55ns 70ns
44-TSOP2 44-TSOP2 44-TSOP2
PIN DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
Pre-charge Circuit
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10
VCC
Row Select
VSS
Memory Array 2048 x 4096
I/O0 ~ I/O7 I/O8 ~ I/O15
Data Cont
Data Cont
I/O Circuit Column Select
A11 A12 A13 A14 A15 A16 A17 A18
44-TSOP2 : Top view
WE OE UB LB CS
Control Logic
Name CS OE WE A0~A18
Function Chip select inputs Output Enable input Write Enable input Address Inputs
Name Vcc Vss UB LB NC
Function Power Supply Ground Upper Byte (I/O8~15) Lower Byte (I/O0~7) No Connected
I/O0~I/O15 Data Inputs/outputs
2
EM681FV16AU Series
Low Power, 512Kx16 SRAM ABSOLUTE MAXIMUM RATINGS * Parameter
Voltage on Any Pin Relative to Vss Voltage on Vcc supply relative to Vss Power Dissipation Operating Temperature
Symbol
VIN, VOUT VCC PD TA
Minimum
-0.2 to 4.0V -0.2 to 4.0V 1.0 -40 to 85
Unit
V V W
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 H X L L L L L L L OE X X H L L L X X X WE X X H H H H L L L LB X H X L H L L H L UB X H X H L L H L L I/O0-7 High-Z High-Z High-Z Data Out High-Z Data Out Data In High-Z Data In I/O8-15 High-Z High-Z High-Z High-Z Data Out Data Out High-Z Data In Data In Mode Deselected Deselected Output Disabled Lower Byte Read Upper Byte Read Word Read Lower Byte Write Upper Byte Write Word Write Power Stand by Stand by Active Active Active Active Active Active 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 Supply voltage Ground Input high voltage Input low voltage
1. 2. 3. 4.
Symbol VCC VSS VIH VIL
Min 2.7 0 2.2 -0.23)
Typ 3.3 0 -
Max 3.6 0 VCC + 0.22) 0.6
Unit V V V V
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 Input capacitance Input/Ouput capacitance
1. Capacitance is sampled, not 100% tested
Symbol CIN CIO
Test Condition VIN=0V VIO=0V
Min -
Max 8 10
Unit pF pF
DC AND OPERATING CHARACTERISTICS
Parameter Input leakage current Output leakage current Operating power supply Symbol ILI ILO ICC ICC1 Average operating current ICC2 Output low voltage Output high voltage Standby Current (TTL) VOL VOH ISB
VIN=VSS to VCC CS=VIH or OE=VIH or WE=VIL or LB=UB=VIH VIO=VSS to VCC IIO=0mA, CS=VIL, WE=VIH, VIN=VIH or VIL Cycle time=1µs, 100% duty, IIO=0mA, CS
