®
LY621024
128K X 8 BIT LOW POWER CMOS SRAM
Rev. 1.7
FEATURES
GENERAL DESCRIPTION
The LY621024 is a 1,048,576-bit low power CMOS
static random access memory organized as 131,072
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 : 35/55/70ns
Low power consumption:
Operating current : 24/17/15mA (TYP.)
Standby current : 2μA@5V(TYP.) LL/SL version
0.8μA@3V(TYP.) SL version
Single 5V power supply
All inputs and outputs TTL compatible
Fully static operation
Tri-state output
Data retention voltage : 1.5V (MIN.)
Green package available
Package : 32-pin 450 mil SOP
32-pin 600 mil P-DIP
The LY621024 is well designed for very low power
system applications, and particularly well suited for
battery back-up nonvolatile memory application.
The LY621024 operates from a single power
supply of 5V and all inputs and outputs are fully TTL
compatible
32-pin 8mm x 20mm TSOP-I
32-pin 8mm x 13.4mm STSOP
36-ball 6mm x 8mm TFBGA
PRODUCT FAMILY
Power Dissipation
Speed
Product
Family
Operating
Temperature
0 ~ 70℃
Vcc Range
Standby(ISB1,TYP.)
Operating(Icc,TYP.)
24/17/15mA
24/17/15mA
24/17/15mA
24/17/15mA
24/17/15mA
24/17/15mA
LY621024(LL)
LY621024(LLE)
LY621024(LLI)
LY621024(SL)
LY621024(SLE)
LY621024(SLI)
4.5 ~ 5.5V 35/55/70ns
4.5 ~ 5.5V 35/55/70ns
4.5 ~ 5.5V 35/55/70ns
4.5 ~ 5.5V 35/55/70ns
4.5 ~ 5.5V 35/55/70ns
4.5 ~ 5.5V 35/55/70ns
-
2µA@5V
2µA@5V
2µA@5V
2µA@5V
2µA@5V
2µA@5V
-20 ~ 80℃
-40 ~ 85℃
0 ~ 70℃
-
-
0.8µA@3V
0.8µA@3V
0.8µA@3V
-20 ~ 80℃
-40 ~ 85℃
FUNCTIONAL BLOCK DIAGRAM
PIN DESCRIPTION
SYMBOL
DESCRIPTION
Address Inputs
A0 - A16
Vcc
Vss
DQ0 – DQ7 Data Inputs/Outputs
CE#, CE2
WE#
OE#
Chip Enable Inputs
Write Enable Input
Output Enable Input
Power Supply
128Kx8
MEMORY ARRAY
A0-A16
DECODER
VCC
VSS
Ground
NC
No Connection
I/O DATA
CIRCUIT
DQ0-DQ7
COLUMN I/O
CE#
CE2
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
1
LYONTEK [ Lyontek Inc. ]
