LY62W20488 Rev. 0.1 2048K X 8 BIT LOW POWER CMOS SRAM REVISION HISTORY Revision Description Issue Date Rev. 0.1 Initial Issue Oct.5.2010 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 LY62W20488 Rev. 0.1 2048K X 8 BIT LOW POWER CMOS SRAM FEATURES GENERAL DESCRIPTION The LY62W20488 is a 16,777,216-bit low power Fast access time : 55/70ns CMOS static random access memory organized as Low power consumption: 2,097,152 words by 8 bits. It is fabricated using very Operating current : 45/30mA (TYP.) high performance, high reliability CMOS technology. Standby current : 10 A (TYP.) LL-version Its standby current is stable within the range of Single 2.7V ~ 5.5V power supply operating temperature. All inputs and outputs TTL compatible Fully static operation The LY62W20488 is well designed for very low Tri-state output power system applications, and particularly well Data retention voltage : 1.5V (MIN.) suited for battery back-up nonvolatile memory Green package available application. Package : 44-pin 400 mil TSOP-II The LY62W20488 operates from a single power supply of 2.7V ~ 5.5V and all inputs and outputs are fully TTL compatible PRODUCT FAMILY Power Dissipation Product Operating Vcc Range Speed Family Temperature Standby(ISB1,TYP.) Operating(Icc,TYP.) LY62W20488 0 ~ 70 2.7 ~ 5.5V 55/70ns 10A(LL) 45/30mA LY62W20488(E) -20 ~ 80 2.7 ~ 5.5V 55/70ns 10A(LL) 45/30mA -40 ~ 85 LY62W20488(I) 2.7 ~ 5.5V 55/70ns 10A(LL) 45/30mA FUNCTIONAL BLOCK DIAGRAM PIN DESCRIPTION SYMBOL DESCRIPTION A0 A20 Address Inputs Vcc Vss DQ0 DQ7 Data Inputs/Outputs CE , CE2 Chip Enable Inputs 2048Kx8 A0-A20 DECODER MEMORY ARRAY WE Write Enable Input OE Output Enable Input VCC Power Supply VSS Ground NC No Connection I/O DATA DQ0-DQ7 COLUMN I/O CIRCUIT CE CE2 CONTROL CIRCUIT WE 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