Greenliant Proprietary & Confidential

Datasheet 01.000

August 2019

These specifications are subject to change without notice.

08/08/2019

© 2019 Greenliant

2

S71469-01

GLS85LS1002E/1004E/1008E/1016E/1032E/1064E

Industrial Grade SATA NANDrive™ EX Series

1.0

GENERAL DESCRIPTION

Each SATA NANDrive contains an integrated SATA NAND flash memory controller and up to eight discrete

NAND flash die in a BGA package. Refer to Figure 2-1 for the SATA NANDrive block diagram.

1.1

Optimized SATA NANDrive

The heart of SATA NANDrive is the SATA NAND

flash memory controller which translates standard

SATA signals into flash media data and control

signals. The following components contribute to

SATA NANDrive’s operation.

1.1.1

Microcontroller Unit (MCU)

The MCU translates SATA commands into data and

control signals required for flash media operation.

1.1.2

Internal Direct Memory Access (DMA)

SATA NANDrive uses internal DMA allowing instant

data transfer from/to buffer to/from flash media. This

implementation eliminates microcontroller overhead

associated

with

the

traditional,

firmware-based

approach, thereby increasing the data transfer rate.

1.1.3

Power Management Unit (PMU)

The PMU controls the power consumption of SATA

NANDrive. The PMU dramatically reduces the power

consumption of SATA NANDrive by putting the part

of the circuitry that is not in operation into sleep

mode.

The Flash File System handles inadvertent power

interrupts and has auto-recovery capability to ensure

SATA NANDrive firmware integrity. For regular

power

management,

the

host

must

send

a

STANDBY_IMMEDIATE (E0h), IDLE_IMMEDIATE

(E1h), STANDBY (E2h) or IDLE (E3h) command

and wait for the command-ready before powering

down SATA NANDrive.

1.1.4

Embedded Flash File System

The embedded flash file system is an integral part of

SATA NANDrive. It contains MCU firmware that

performs the following tasks:

1.

Translates host side signals into flash media

writes and reads

2.

Provides flash media wear leveling to spread

the flash writes across all memory address

space to increase the longevity of flash media

3.

Keeps track of data file structures

4.

Manages system security for the selected

protection zones

1.1.5

Error Correction Code (ECC)

The ECC technology uses advanced algorithms to

detect and correct errors, ensuring data integrity and

extending the SSD lifespan.

1.1.6

Serial Communication Interface (SCI)

The

Serial

Communication

Interface

(SCI)

is

designed for error reporting. During the product

development stage, it is recommended to provide

the SCI port on the PCB to aid in design validation.

1.1.7

Multi-tasking Interface

The multi-tasking interface enables fast, sequential

write performance by allowing concurrent Read,

Program and Erase operations to multiple flash

media.

1.2

SMT Reflow Consideration

Preprogrammed NAND devices have temperature

limits due to data retention. The EnduroSLC™ SATA

NANDrive family uses high-grade SLC NAND flash

which

can

retain

data

in

high

temperature

environments.

Using

Greenliant’s

recommended

reflow profile during production will help prevent

damage to the device and ensure better retention of

any preprogrammed data through the surface-mount

soldering process. See the relevant datasheet

section

describing

the

recommended

reflow

temperature limits.

1.3

Advanced NAND Management

SATA

NANDrive’s

integrated

controller

uses

advanced wear-leveling algorithms to substantially

increase the longevity of NAND flash media. Wear

caused by data writes is evenly distributed across all

or select blocks in the device to prevent “hot spots”

in locations that are programmed and erased

extensively. This effective wear-leveling technique

results in optimized device endurance, enhanced

data retention and higher reliability required by long-

life applications.