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EM621FT8GS-70L Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

Part # EM621FT8GS-70L
Description  512K x16 bit Low Power and Low Voltage Full CMOS Static RAM
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EM681FV16AU Series
Low Power, 512Kx16 SRAM
2
FEATURES
• Process Technology : 0.15
µm 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 fami-
lies also supports low data retention voltage for battery
back-up operation with low data retention current.
PRODUCT FAMILY
Product
Family
Operating
Temperature
Vcc Range
Speed
Power Dissipation
PKG Type
Standby
(ISB1, Typ.)
Operating
(ICC1.Max)
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
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)
A0~A18
Address Inputs
LB
Lower Byte (I/O0~7)
I/O0~I/O15 Data Inputs/outputs
NC
No Connected
I/O Circuit
Column Select
Data
Cont
Data
Cont
Pre-charge Circuit
Memory Array
2048 x 4096
A1
A2
A3
A4
A5
A6
A7
A0
A8
A9
A11 A12 A13 A14 A15 A16 A17
WE
OE
UB
LB
CS
I/O0 ~ I/O7
I/O8 ~ I/O15
VCC
VSS
Control Logic
FUNCTIONAL BLOCK DIAGRAM
A10
PIN DESCRIPTION
A18
PIN DESCRIPTION
44-TSOP2 : Top view


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