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LY61256LL Datasheet(PDF) 2 Page - Lyontek Inc.

Part # LY61256LL
Description  32K X 8 BIT HIGH SPEED CMOS SRAM
Download  13 Pages
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Manufacturer  LYONTEK [Lyontek Inc.]
Direct Link  http://www.lyontek.com.tw
Logo LYONTEK - Lyontek Inc.

LY61256LL Datasheet(HTML) 2 Page - Lyontek Inc.

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LY61256
Rev. 1.5
32K X 8 BIT HIGH SPEED CMOS SRAM
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
1
®
FEATURES
Fast access time : 8/10/12/15ns
Low power consumption:
Operating current : 110/100/90/80mA (TYP.)
Standby current : 1mA (TYP.)
2
μA (TYP.) LL-version
Single 5V power supply
All inputs and outputs TTL compatible
Fully static operation
Tri-state output
Data retention voltage : 2.0V (MIN.)
Green package available
Package : 28-pin 300 mil SOJ
28-pin 300 mil Skinny P-DIP
28-pin 8mm x 13.4mm STSOP
GENERAL DESCRIPTION
The LY61256 is a 262,144-bit high speed CMOS
static random access memory organized as 32,768
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.
The LY61256 is well designed for high speed
system application. Easy expansion is provided by
using an active LOW Chip Enable(CE#). The active
LOW Write Enable(WE#) controls both writing and
reading of the memory.
The LY61256 operates from a single power
supply of 5V and all inputs and outputs are fully TTL
compatible
PRODUCT FAMILY
Power Dissipation
Product
Family
Operating
Temperature
Vcc Range
Speed
Standby(ISB1,TYP.) Operating(Icc,TYP.)
LY61256
0 ~ 70℃
4.5 ~ 5.5V
8/10/12/15ns
1mA
110/100/90/80mA
LY61256(E)
-20 ~ 80℃
4.5 ~ 5.5V
8/10/12/15ns
1mA
110/100/90/80mA
LY61256(I)
-40 ~ 85℃
4.5 ~ 5.5V
8/10/12/15ns
1mA
110/100/90/80mA
LY61256(LL)
0 ~ 70℃
4.5 ~ 5.5V
8/10/12/15ns
2
μA(LL)
110/100/90/80mA
LY61256(LLE)
-20 ~ 80℃
4.5 ~ 5.5V
8/10/12/15ns
2
μA(LL)
110/100/90/80mA
LY61256(LLI)
-40 ~ 85℃
4.5 ~ 5.5V
8/10/12/15ns
2
μA(LL)
110/100/90/80mA
FUNCTIONAL BLOCK DIAGRAM
DECODER
I/O DATA
CIRCUIT
CONTROL
CIRCUIT
32Kx8
MEMORY ARRAY
COLUMN I/O
A0-A14
Vcc
Vss
DQ0-DQ7
CE#
WE#
OE#
PIN DESCRIPTION
SYMBOL
DESCRIPTION
A0 - A14
Address Inputs
DQ0 – DQ7
Data Inputs/Outputs
CE#
Chip Enable Input
WE#
Write Enable Input
OE#
Output Enable Input
VCC
Power Supply
VSS
Ground


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