Macronix unveils low-pin-count OctaBus memory subsystem solution for IoT and auto electronics markets


Press release; Jessie Shen, DIGITIMES [Monday 14 November 2016]

Macronix International has unveiled a new-generation 12 pin-count bus interface. The design keeps the high speed, high efficiency features of OctaFlash and uses only 12 pins, sharing the same data I/O, to enable simplicity in system design and optimizes PCB space, resulting in significant cost savings and dramatically enhancing the performance, according to the company.

Macronix introduced its OctaFlash, a fast and high-efficiency 8 I/O serial NOR flash with 400MB/s data transfer rate, in 2015.

The new generation of Macronix' OctaBus memory interface keeps the low pin count feature of OctaFlash and combines both OctaFlash and the new OctaRAM components on a single bus. The two products can share the same data I/O and certain signal control pins and are designed to be compatible with each other with regards to their modified memory protocols. This enables chipset providers to combine PCB layout designs for OctaFlash and OctaRAM or even use a common PCB design, the company indicated.

In the new OctaBus memory subsystem, OctaFlash is recognized as an industry leader based on its 200MHz high performance frequency; while in tandem, OctaRAM enables designers to optimize their system design with significant cost savings through efficient pin sharing.

With its strengths in low pin count and sharing of the I/O bus, OctaBus memory is expected to achieve great success also in the MCP (multi chip package) market, Macronix indicated.

The original design of MCP chips, using separate buses, typically requires a BGA package with 80 pins. A design adopting OctaBus can have the package dimension reduced from 9x9mm to 6x8mm, Macronix said. In particular, an MCP combining OctaBus advantages of OctaFlash and OctaRAM in KGD form (known good die) provides even further simplicity of design and reduced complexity to satisfy system manufacturers' critical demands of cost reduction and design flexibility.

Macronix added its OctaBus memory subsystem will include three major product lines: Macronix's own OctaFlash series, an OctaMCP product line and a discrete OctaRAM line provided by other memory ecosystem and supply chain partners.​