Technologies

NAND Flash

NAND Flash memory is a type of Flash Memory. It belongs to non-volatile memory that can be electrically erased and reprogrammed. Data stored in a NAND Flash can be maintained without external power supply. NAND Flash offers a maximum chip capacity with relatively low cost. Thus it is being widely used in applications with mass data storage like SSD drive, SD cards as well as embedded systems.

NAND Flash highlights

Parallel SLC NAND: Portfolio

 

SkyHigh: ONFI SLC NAND

  • Density: 1Gbit – 16Gbit
  • Voltage: 3V / 1,8V;
  • Bus width: 8bit, 16bit
  • TSOP-48, BGA-63, BGA-67
  • 100k P/E cycles
  • -40°C to 85°C; -40°C to 105°C

Longsys: ONFI SLC NAND

  • Density: 1Gbit – 8Gbit
  • Voltage: 3V / 1,8V;
  • Bus width: 8bit,
  • TSOP-8, BGA63
  • 100k P/E cycles
  • -40°C to 85°C

Serial NAND: Portfolio

 

SkyHigh Memory SPI NAND

  • 1Gbit – 4Gbit, 3V
  • Up to 104MHz
  • LGA-8, 16-SOIC, 24-BGA
  • 100k P/E cycles
  • -40°C to 85°C; -40°C to 105°C

Etron Technology SPI NAND

  • 1Gbit – 8Gbit, 3V & 1.8V
  • Up to 120MHz, LGA-8, WSON-8
  • 100k P/E cycles
  • -40°C to 85°C

Longsys SPI NAND

  • 512Mbit – 4Gbit, 3V & 1.8V
  • Up to 133MHz, WSON-8
  • -40°C to 85°C

 

Company overview

 

The benefits of NAND Flash

Non-Volatility

Data can be maintained for long time without energy source

High density

with relatively low cost

High speed access

through Quad SPI

Data integrity

built-in ECC available; 1bit or 4bit options supported

Data retention

10 years

How it works

Same as NOR Flash, the NAND Flash memory cell utilizes the charge state of a floating gate to store binary information. Data can be read and written in pages, but they can only be erased at the level of entire blocks consisting of multiple pages.

There are different types of NAND Flash:

SLC: single-level cell: stores one bit per cell.

MLC: multiple-level cell: stores two bits per cell

TLC: triple-level cell: stores three bits per cell.

QLC: quad-level cell: stores four bits per cell.

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