IS62/65WVS2568GALL IS62/65WVS2568GBLL JULY 2021 256Kx8 LOW VOLTAGE, FAST SERIAL SRAM with SPI, SDI and SQI INTERFACE KEY FEATURES DESCRIPTION SPI-Compatible Bus Interface: The ISSI IS62/65WVS2568GALL/GBLL are 2M bit Fast - 30/45 MHz Clock rate Serial static RAMs organized as 256K bytes by 8 bits. It - SPI/SDI/SQI mode is fabricated using ISSI s high-performance CMOS technology. Single Power Supply: The device is accessed via a simple Serial Peripheral - VDD = 1.65V - 2.2V (IS62/65WVS2568GALL) Interface (SPI) compatible serial bus. The bus signals - VDD = 2.70V - 3.6V (IS62/65WVS2568GBLL) required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access the device is Read Latency: controlled through a Chip Select (CS ) input. - SPI mode: 8 clocks Additionally, SDI (Serial Dual Interface) and SQI (Serial Quad Interface) is supported if your application - DPI mode: 4 clocks needs faster data rates. - QPI mode: 2 clocks This device also supports unlimited reads and writes to Low-Power CMOS Technology: the memory array. - Read Current: 10 mA(max) at 3.6V, 45 MHz, 85C The IS62/65WVS5128GALL/GBLL are available in the - CMOS Standby Current: 4 A(typ) standard 8-pin SOIC package. 256K x 8-bit Organization: - 32-byte page Byte, Page and Sequential mode for Reads and Writes Temperature Ranges Supported: - Industrial (I): -40C to +85C - Automotive (A3): -40C to +125C RoHS Compliant - 8-pin SOIC package Copyright 2021 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that: a.) the risk of injury or damage has been minimized b.) the user assume all such risks and c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances Integrated Silicon Solution, Inc.- www.issi.com 1 Rev. A8 07/06/2021 IS62/65WVS2568GALL IS62/65WVS2568GBLL BLOCK DIAGRAM Control Logic Status I/O Buffers and Register Data Latches CS SCK SI (SIO0) Y- Decoder SO (SIO1) DNU (SIO2) HOLD X (SIO3) Memory Array Decoder 256Kb x 8 Address Latch& Counter Integrated Silicon Solution, Inc.- www.issi.com 2 Rev. A8 07/06/2021 Serial Peripheral Interface