®
LY61L2568A
256K X 8 BIT HIGH SPEED CMOS SRAM
Rev. 1.0
GENERAL DESCRIPTION
FEATURES
The LY61L2568A is a 2,097,152-bit high speed
CMOS static random access memory organized as
262144 words by 8 bits. It is fabricated using very
high performance, high reliability CMOS technology.
Its standby current is stable within the range of
operating temperature.
Fast access time : 8/10/12ns
Low power consumption:
Operating current:
50/40/35mA(TYP.)
Standby current:
2mA(TYP.)
The LY61L2568A operates from a single power
supply of 3.3V and all inputs and outputs are fully
TTL compatible
Single 3.3V power supply
All inputs and outputs TTL compatible
Fully static operation
Tri-state output
Data retention voltage : 1.5V (MIN.)
Green package available
Package : 44-pin 400 mil TSOP-II
PRODUCT FAMILY
Power Dissipation
Speed
Product
Family
Operating
Temperature
Vcc Range
Standby(ISB1,TYP.) Operating(ICC1,TYP.)
2.7 ~ 3.6V
3.0 ~ 3.6V
2.7 ~ 3.6V
3.0 ~ 3.6V
10/12ns
8ns
10/12ns
8ns
2mA
2mA
2mA
2mA
40/35mA
50mA
40/35mA
50mA
0 ~ 70℃
LY61L2568A
-40 ~ 85℃
LY61L2568A(I)
FUNCTIONAL BLOCK DIAGRAM
PIN DESCRIPTION
SYMBOL
DESCRIPTION
A0 - A17
Address Inputs
Vcc
Vss
DQ0 – DQ7 Data Inputs/Outputs
CE#
WE#
OE#
VCC
VSS
Chip Enable Inputs
Write Enable Input
Output Enable Input
Power Supply
256Kx8
MEMORY ARRAY
A0-A17
DECODER
Ground
NC
No Connection
I/O DATA
CIRCUIT
DQ0-DQ7
COLUMN I/O
CE#
WE#
OE#
CONTROL
CIRCUIT
Lyontek Inc. reserves the rights to change the specifications and products without notice.
5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
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LYONTEK [ Lyontek Inc. ]
