Rayson eMMC product is a high quality and cost advantage embedded storage solution and compatible with JEDEC standard eMMC5.1 specification. Its strong ECC engine significantly improves error correction enabling longer device lifetime and an increased ability to handle higher raw bit error rate.

The Rayson eMMC product consists of NAND flash and an eMMC controller. The eMMC controller and software directly manage NAND flash, including ECC, wear-leveling, bad block management, garbage collection and performance optimization, and manage interface protocols. This architecture insulates any revision of NAND flash from the eMMC Host, makes the eMMC device easy to integrate and accelerates time-to-market.

eMMC feature overview:

⚫ eMMC 5.1 specification compatibility

Backward compatible to eMMC 4.41/4.51/5.0

Bus mode：

Data bus width: 1 bit (default), 4 bits, 8 bits

Data transfer rate: up to 400MB/s (HS400)

Clock frequency : 0~200MHz

Operating voltage range：

VCC: 2.7 - 3.6V 

VCCQ : 1.7 - 1.95V or 2.7 - 3.6V

Support Hardware ECC engine

Support auto power saving mode

Preventing from sudden-power-off

Support features defined in JEDEC standard：

RPMB

Boot partition 

Write protection 

Erase, discard, trim, sanitize

HPI 

Background operations

Device health report

Field firmware update(FFU)

Sleep / awake

Packed command

Temperature range：

Operation：-25oC ~ 85oC

Storage whitout Operation：-40oC ~ 85oC