In the hardware design related to industry and vehicle,IS61WV102416EDALL is a 16Mbit high-speed asynchronous SRAM with hardware ECC error correction function of ISSI.With the ability of SEC‑DED single-error correction and double-error detection,IS61WV102416EDALL has strong adaptability to electromagnetic interference environment,and is mostly used in cache scenes that require high data reliability.Affected by the fluctuation of overseas storage supply chain,the replacement model of NETSOL SRAM is gradually adopted as the BOM backup scheme of ISSI project.

 

First,characteristics of IS61WV102416EDALL chip
 

IS61WV102416EDALL storage architecture is 1M×16bit,and it is manufactured by high-performance CMOS technology,with access speed of 10ns and 12ns.The power supply interval is 1.65V‑2.2V With the ERR1 and ERR2 status output pins,the single-bit error correction and double-bit error detection status can be fed back respectively,and the byte-level ECC mechanism can effectively reduce the risk of system soft errors.

IS61WV102416EDALL SRAM chip belongs to completely static asynchronous SRAM,which needs no clock and refresh.Enter low-power standby mode by CS#chip selection,WE#read-write control,UB#/LB#support independent access of high and low bytes;Three-state output is convenient for multi-chip storage bit expansion.The device is available in 48-lead miniature BGA(6mm×8mm)and 48‑TSOP‑I JEDEC standard packages,covering industrial-grade and vehicle temperature specifications,and lead-free versions are available.

 

Second,NETSOL SRAM alternative scheme
 

NETSOL SRAM introduces pin‑to‑pin compatibility scheme,which can carry out alternative evaluation for IS61WV102416EDALL,align the package pins with the existing PCB,and reduce the cost of board modification.It can provide compatible power supply voltage and access speed gears.When the original system relies on hardware ECC for data protection,it can completely reproduce the error correction detection logic.Complete the board-level full temperature zone test to check standby power consumption,byte reading and writing,and bus timing margin.This kind of high-speed SRAM with ECC is mostly used for data caching of communication equipment,industrial control boards and vehicle-mounted equipment.When evaluating the replacement of IS61WV102416EDALL by NETSOL SRAM,engineers can use samples to verify all working conditions,such as reading and writing,error correction output and high and low temperature.Sample application can be consulted with Yingshang Microelectronics.