Date: 16th May 2011
NAND flash controller IP supports ONFI
3.0
Arasan Chip Systems, Inc. has made available NAND Flash
Controllers supporting the newest Open NAND Flash Interface
(ONFI) 3.0 specification.
Designed to support both SLC and MLC flash memories, this
new controller IP works with any suitable memory device
up to 128 Gb from leading memory providers such as Micron,
Samsung, Toshiba, Hynix, ST-Micro, and others. Arasan's
NAND Flash Controller supports fast transfer modes up to
400MTS with differential signaling on clock and data, and
double data-rate transfers (DDR). This IP incorporates all
of the new features of ONFI 3.0 such as eight chip enables,
page sizes up to 8K and ECC up to 64 bits with dynamic configuration,
warm-up cycles. All ONFI 3.0 commands are supported and
the controller is backward compatible with earlier versions
of ONFI.
The IP core supports the Open NAND Flash Interface Working
Group (ONFI) 3.0 standard and is backwards compatible. It
uses differential signaling on the clock and data lines
and clocks at any frequency up to 200 MHz.
Arasan said its NAND Flash Controller is architected to
handle the growing raw error bit rates as NAND memory migrates
to finer process geometries by processing information contained
in the Extended ECC Information data structure stored in
NAND memory. In addition, the controller supports booting
directly from NAND memory. The IP core is easily implemented
using a generic standard cell based flow combined with delay
components that are part of a typical ASIC cell library,
adds Arasan.
"SoC designers would like to exploit advances in NAND
memory technology without having to develop proprietary
interfaces, thereby ensuring compatibility," said Prakash
Kamath, Vice-President of Engineering at Arasan. "With
Arasan's NAND Flash Controllers, designers can seamlessly
interface to any ONFI 3.0 compliant memory, independent
of the underlying NAND memory technology."
"Consumer and mobile device manufacturers are constantly
exploring options to reduce the cost of their system solutions,
particularly memory components," said Somnath Viswanath,
Product Marketing Manager at Arasan. "By integrating
Arasan's NAND Flash Controller, they now have the option
to integrate the most cost effective ONFI based memory over
the life of the host processor."
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