1.Why do you need ISSI SRAM to replace it?
At present,the asynchronous SRAM series of ISSI(Core Semiconductor),such as IS62WV102416BLL-25TLI(16Mbit,1M×16,25ns)and IS62WV51216BLL-55TLI(8Mbit,512K×16,55ns),rely on their nanosecond access speed,no refresh mechanism and However,the supply of ISSI SRAM is tight,the delivery time of some models fluctuates,the price of imported materials is unstable,and the project promotion is prone to risks,so RAMUSN has launched a set of domestic solutions.
2.What domestic alternatives can ISSI SRAM use?
SRAM doesn't need to be refreshed,and it is fast to read and write,and the delay is determined.It is naturally suitable for caching and real-time data processing.ISSI asynchronous SRAM is mostly packaged in TSOP2 and arranged according to JEDEC standard.As long as the ISSI SRAM replacement chip is pin-to-pin compatible,the hardware does not need to be moved,and the verification focuses on timing and power consumption.Faced with the fluctuation of delivery date of some models of ISSI,mature domestic alternatives to ISSI SRAM have appeared in the market.The low-power SRAM series provided by Anhui Weiling Chuangxin(EMI)is highly compatible with ISSI mainstream models in terms of capacity,packaging and electrical specifications,which provides a practical guarantee for supply chain security.
3.ISSI SRAM is a domestic alternative to EMI SRAM memory chip.
The asynchronous SRAM of EMI corresponds to the mainstream model of ISSI in package and pin.The working temperature of EMI SRAM is-40℃~85℃,and the standby current of low power consumption model is as low asμA level.As the domestic replacement of ISSI SRAM,the EMI product line covers from 1Mbit to 32 mbit:EMI 501 corresponds to 64K×16,EMI502 corresponds to 128K×16,EMI504 covers 256K×16 and 512K×8,EMI508 provides 1M×8 and 512K×16 dual organizations,and there is 10ns EMI508NF16VM in high-speed gear.The same capacity has 3.3V and 5V voltage domains,TSOP2 and FBGA package,which is suitable for different main control and board types.
Domestic materials are not affected by the fluctuation of import channels,the supply cycle of conventional models is shorter,and emergency projects can get samples faster.With its rich capacity echelon(1M~8M),complete package compatibility and stable industrial specifications,EMI SRAM provides a reliable second supplier choice for ISSI SRAM series products.If you have domestic replacement demand for ISSI SRAM,please feel free to call us,and we will provide you with a more reliable storage supply chain.
Keywords:ISSI SRAM
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