CMOS SRAM. LY6251216 Datasheet

LY6251216 SRAM. Datasheet pdf. Equivalent

Part LY6251216
Description 512K X 16-Bit Low Power CMOS SRAM
Feature ® LY6251216 Rev. 0.4 512K X 16 BIT LOW POWER CMOS SRAM REVISION HISTORY Revision Rev. 0.1 Rev. 0..
Manufacture Lyontek
Datasheet
Download LY6251216 Datasheet



LY6251216
®
Rev. 0.4
LY6251216
512K X 16 BIT LOW POWER CMOS SRAM
REVISION HISTORY
Revision
Rev. 0.1
Rev. 0.2
Rev. 0.3
Rev. 0.4
Description
Initial Issue
Added ISB Spec.
Revised FEATURES & ORDERING INFORMATION
Lead free and green package available to Green package
available
Added packing type in ORDERING INFORMATION
Deleted TSOLDER in ABSOLUTE MAXIMUN RATINGS
Revised VDR
Issue Date
Oct.14.2007
Feb.1.2008
May.20.2009
Sep.11.2009
www.DataSheet4U.com
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
0



LY6251216
®
Rev. 0.4
LY6251216
512K X 16 BIT LOW POWER CMOS SRAM
FEATURES
„ Fast access time : 55/70ns
„ Low power consumption:
Operating current : 45/30mA (TYP.)
Standby current : 8μA (TYP.) LL-version
„ Single 4.5V ~ 5.5V power supply
„ All inputs and outputs TTL compatible
„ Fully static operation
„ Tri-state output
„ Data byte control : LB# (DQ0 ~ DQ7)
UB# (DQ8 ~ DQ15)
„ Data retention voltage : 1.5V (MIN.)
„ Green package available
„ Package : 44-pin 400 mil TSOP-II
48-ball 6mm x 8mm TFBGA
PRODUCT FAMILY
Product
Family
LY6251216
LY6251216(E)
LY6251216(I)
Operating
Temperature
0 ~ 70
-20 ~ 80
-40 ~ 85
Vcc Range
4.5 ~ 5.5V
4.5 ~ 5.5V
4.5 ~ 5.5V
FUNCTIONAL BLOCK DIAGRAM
Vcc
Vss
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A0-A18
DECODER
512Kx16
MEMORY ARRAY
DQ0-DQ7
Lower Byte
DQ8-DQ15
Upper Byte
I/O DATA
CIRCUIT
COLUMN I/O
GENERAL DESCRIPTION
The LY6251216 is a 8,388,608-bit low power CMOS
static random access memory organized as 524,288
words by 16 bits. It is fabricated using very high
performance, high reliability CMOS technology. Its
standby current is stable within the range of
operating temperature.
The LY6251216 is well designed for low power
application, and particularly well suited for battery
back-up nonvolatile memory application.
The LY6251216 operates from a single power
supply of 4.5V ~ 5.5V and all inputs and outputs are
fully TTL compatible
Speed
55/70ns
55/70ns
55/70ns
Power Dissipation
Standby(ISB1,TYP.) Operating(Icc,TYP.)
8µA(LL)
45/30mA
8µA(LL)
45/30mA
8µA(LL)
45/30mA
PIN DESCRIPTION
SYMBOL DESCRIPTION
A0 - A18
Address Inputs
DQ0 – DQ15 Data Inputs/Outputs
CE# Chip Enable Input
WE#
Write Enable Input
OE#
Output Enable Input
LB# Lower Byte Control
UB# Upper Byte Control
VCC Power Supply
VSS Ground
CE#
WE#
OE#
LB#
UB#
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





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