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LY622568PL-45LLIT Datasheet(PDF) 2 Page - Lyontek Inc. |
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LY622568PL-45LLIT Datasheet(HTML) 2 Page - Lyontek Inc. |
2 / 14 page LY622568 Rev. 2.4 256K X 8 BIT LOW POWER 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 : 45/55/70ns Low power consumption: Operating current : 50/40/30mA (TYP.) Standby current : 3 μA@5V(TYP.) LL/SL version 2 μA@3V(TYP.) SL version Single 4.5V ~ 5.5V 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 8mm x 20mm TSOP-I 32-pin 8mm x 13.4mm STSOP 32-pin 450 mil SOP 32-pin 600 mil P-DIP GENERAL DESCRIPTION The LY622568 is a 2,097,152-bit low power CMOS static random access memory organized as 262,144 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 LY622568 is well designed for very low power system applications, and particularly well suited for battery back-up nonvolatile memory application. The LY622568 operates from a single power supply of 4.5V ~ 5.5V and all inputs and outputs are fully TTL compatible PRODUCT FAMILY Product Family Operating Temperature Vcc Range Speed Power Dissipation Standby(ISB1,TYP.) Operating(Icc,TYP.) LY622568(LL) 0 ~ 70℃ 4.5 ~ 5.5V 45/55/70ns - 3µA@5V 50/40/30mA LY622568(LLE) -20 ~ 80℃ 4.5 ~ 5.5V 45/55/70ns - 3µA@5V 50/40/30mA LY622568(LLI) -40 ~ 85℃ 4.5 ~ 5.5V 45/55/70ns - 3µA@5V 50/40/30mA LY622568(SL) 0 ~ 70℃ 4.5 ~ 5.5V 45/55/70ns 2µA@3V 3µA@5V 50/40/30mA LY622568(SLE) -20 ~ 80℃ 4.5 ~ 5.5V 45/55/70ns 2µA@3V 3µA@5V 50/40/30mA LY622568(SLI) -40 ~ 85℃ 4.5 ~ 5.5V 45/55/70ns 2µA@3V 3µA@5V 50/40/30mA FUNCTIONAL BLOCK DIAGRAM DECODER I/O DATA CIRCUIT CONTROL CIRCUIT 256Kx8 MEMORY ARRAY COLUMN I/O A0-A17 Vcc Vss DQ0-DQ7 CE# WE# OE# CE2 PIN DESCRIPTION SYMBOL DESCRIPTION A0 - A17 Address Inputs DQ0 – DQ7 Data Inputs/Outputs CE#, CE2 Chip Enable Inputs WE# Write Enable Input OE# Output Enable Input VCC Power Supply VSS Ground NC No Connection |
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