LY62256 Rev. 2.9 32K X 8 BIT LOW POWER CMOS SRAM REVISION HISTORY Revision Description Issue Date Rev. 1.0. Initial Issue Jul.25.2004 Rev. 2.0. Revised Vcc Range(Vcc=4.5~5.5V => 2.7~5.5V) May.4.2005 Rev. 2.1. Revised ISB1 May.13.2005 Rev. 2.2 Adding PKG type : skinny P-DIP Aug.29.2005 Rev. 2.3 Revised VIH(min)=2.4V, VIL(max)=0.6V Feb.24.2006 Rev. 2.4 Revised VIH(min)=2.4V, VIL(max)=0.6V (VCC=2.7~3.6V) Jul.31.2006 VIH(min)=2.4V, VIL(max)=0.8V (VCC=4.5~5.5V) Rev. 2.5 Revised STSOP Package Outline Dimension Mar.26.2008 Rev. 2.6 Added SL grade Mar.30.2009 Added I /I values when T = 25 and T = 40 SB1 DR A A FEATURES ORDERING INFORMATION Revised & Lead free and green package available to Green package available Added packing type in ORDERING INFORMATION Revised I SB1(MAX) Revised V to V and V TERM T1 T2 Revised Test Condition of I /I SB1 DR Deleted T in ABSOLUTE MAXIMUN RATINGS SOLDER Rev. 2.7 Dec.18.2009 Revised PACKAGE OUTLINE DIMENSION in page 8 & 9 Rev. 2.8 May.7.2010 Revised PACKAGE OUTLINE DIMENSION in page 10 Rev. 2.9 Aug.25.2010 ORDERING INFORMATION Revised in page 12 Revised PACKAGE OUTLINE DIMENSION in page 9 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 LY62256 Rev. 2.9 32K X 8 BIT LOW POWER CMOS SRAM FEATURES GENERAL DESCRIPTION The LY62256 is a 262,144-bit low power CMOS Fast access time : 35/55/70ns static random access memory organized as 32,768 Low power consumption: words by 8 bits. It is fabricated using very high Operating current : 20/15/10mA (TYP.) performance, high reliability CMOS technology. Its Standby current : 1 A (TYP.) standby current is stable within the range of Single 2.7~5.5V power supply operating temperature. All inputs and outputs TTL compatible Fully static operation The LY62256 is well designed for low power Tri-state output application, and particularly well suited for battery Data retention voltage : 1.5V (MIN.) back-up nonvolatile memory application. Green package available Package : 28-pin 600 mil PDIP The LY62256 operates from a single power 28-pin 330 mil SOP supply of 2.7~5.5V and all inputs and outputs are 28-pin 8mm x 13.4mm STSOP fully TTL compatible 28-pin 300 mil Skinny P-DIP PRODUCT FAMILY Product Operating Power Dissipation Vcc Range Speed Family Temperature Standby(ISB1,TYP.) Operating(Icc,TYP.) 0 ~ 70 LY62256 2.7 ~ 5.5V 35/55/70ns 1A 20/15/10mA -20 ~ 80 LY62256(E) 2.7 ~ 5.5V 35/55/70ns 1A 20/15/10mA LY62256(I) -40 ~ 85 2.7 ~ 5.5V 35/55/70ns 1A 20/15/10mA FUNCTIONAL BLOCK DIAGRAM PIN DESCRIPTION SYMBOL DESCRIPTION A0 - A14 Address Inputs Vcc Vss DQ0 DQ7 Data Inputs/Outputs CE Chip Enable Input 32Kx8 A0-A14 DECODER MEMORY ARRAY WE Write Enable Input OE Output Enable Input V Power Supply CC V Ground SS I/O DATA DQ0-DQ7 COLUMN I/O CIRCUIT CE CONTROL WE CIRCUIT OE 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