IS62/65WVS5128FALL IS62/65WVS5128FBLL JULY 2021 512Kx8 LOW VOLTAGE, SERIAL SRAM with SPI, SDI and SQI INTERFACE KEY FEATURES DESCRIPTION SPI-Compatible Bus Interface: The ISSI IS62/65WVS5128FALL/FBLL are 4M bit Serial - 16/20 MHz Clock rate static RAMs organized as 512K bytes by 8 bits. It is a dual die stack of two 2Mb Serial SRAMs. - SPI/SDI/SQI mode Low-Power CMOS Technology: The device is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus. The bus signals - Read Current: 16 mA(max) at 3.6V, 20 MHz, 85C required are a clock input (SCK) plus separate data in - CMOS Standby Current: 8 A(typ) (SI) and data out (SO) lines. Access the device is 512K x 8-bit Organization: controlled through a Chip Select (CS ) input. - 32-byte page Additionally, SDI (Serial Dual Interface) and SQI (Serial Byte, Page and Sequential mode for Reads and Quad Interface) is supported if your application needs Writes faster data rates. Temperature Ranges Supported: This device also supports unlimited reads and writes to - Industrial (I): -40C to +85C the memory array. - Automotive (A3): -40C to +125C RoHS Compliant The IS62/65WVS5128FALL/FBLL are available in the - 8-pin SOIC package standard 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 IS62/65WVS5128FALL IS62/65WVS5128FBLL BLOCK DIAGRAM SI (SIO0) SI (SIO0) SO (SIO1) SO (SIO1) Die 0 DNU (SIO2) DNU (SIO2) HOLD (SIO3) HOLD (SIO3) VSS VSS VDD VDD CS CS SCK SCK SI (SIO0) SO (SIO1) Die 1 DNU (SIO2) HOLD (SIO3) VSS VDD CS SCK Integrated Silicon Solution, Inc.- www.issi.com 2 Rev. A8 07/06/2021