LAPIS Semiconductor provides a wide variety of products ranging from parallel page mode products with 16bit / 8bit BUS width which are widely used for NOR Flash and Mask ROM, to large density and high speed products with expanded BUS width which are ideal for sound / image data storage.
A broad range of BUS widths are offered in addition to switchable ×8bit / ×16bit models, including ×16bit / ×32bit switchable, ×32bit, and ×64bit products. A variety of memory densities are also available (16Mbit-8Gbit), enabling the selection of the ideal solution to fit set needs. Expanded BUS widths result in higher data transfer speeds while decreasing the number of parts required. Ideal for storing image data.
All pins, excluding those specific to Flash memory such as one for rewrite, are compatible with Flash memory. Flash-specific pins, including WE# and Reset#, are designated NC (Not Connected) in LAPIS Semiconductor's P2ROM™, preventing malfunction in the event voltage is supplied. This allows for easy replacement without troublesome and costly board modifications. To replace a Mask ROM, simply select the pin-compatible version from our extensive lineup.
For customers requiring socket mounting, LAPIS Semiconductor offers 70pin SSOP and 44pin SOP models with high-strength pins. Since these packages are compatible with sockets of any makers, they can be used without worry.
Like NAND Flash, LAPIS Semiconductor's LVNROM I/F P2ROM™ series features command control interface and outputs data sequentially via a 32bit BUS. In addition, proprietary fast readout circuit and memory cell array technologies reduce readout time significantly, making them ideal for applications requiring random access. Readout operation can be started from an arbitrary address and continued until the final logical address is reached, a stop command (00F0h) is entered, or the CE# pin is set to “H”. tBSY is only 1.55µs - approx. 1/16 of conventional NAND Flash memory, resulting in faster readout than NAND Flash. Put another way, LAPIS Semiconductor's LVNROM I/F P2ROM™ requires only 2/3 the time of NAND Flash to read 1056bytes of data.
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