Silicon Motion, Inc. 的 SATA, PATA FerriSSD® 规格书

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SATA / PATA
FerriSSD®
Single-Chip SSD
FerriSSD®
Single-Chip SSD
The FerriSSD® is designed optimally for a wide range of embedded applications requiring faster access
speed, small flexible form factor and reliable SATA/PATA storage. By combining industry proven controller
technology, NAND flash and passive components into a small single BGA package, FerriSSD® simplifies
design efforts, reduces time-to-market while protecting from NAND technology migration concerns.
The FerriSSD® family consists of the SATA and legacy PATA series featuring high throughput transfer
rate with optional embedded DRAM to enhance data storage efficiency and high random read/write
IOPS. The 4th generation FerriSSD leveraging Silicon Motion’s most advanced technologies, including
IntelligentScan, DataRefresh, high bandwidth LDPC ECC engine with SMI group RAID, and End-to-end
data path protection to provide unsurpassed data integrity in a non-volatile storage device. All
FerriSSD® series support 3D SLCmode, MLCmode, and TLCmode NAND flash options.
Key Features End to End Data Path Protection
SMI’s FerriSSDs incorporate full data error detection with recovery engines to provide enhanced
data integrity throughout the entire Host-to-NAND-to-Host data path. The FerriSSD® data recovery
algorithm can effectively detect any error in the SSD data path, including hardware (i.e. ASIC) errors,
firmware errors and memory errors arising in SRAM, DRAM or NAND.
NANDXtend™ ECC Engine
Conventional SSDs employ standard BCH and RS ECC (error correction coding) engines for initiate
first-level correction using NAND shift-read-retries. In addition to this first-level error correction,
FerriSSDs also implement a highly efficient second-level correction scheme using an LDPC (low-density
parity check) code and a
Group page RAID algorithm
(a highly efficient redun-
dant backup) to reduce
potential dPPM at customer
site while extending the
service life of SSD.
No error data will
be sent to host!
Write flow w / encode
Host
Encode
CRC
Engine
Write
Encode
Decode
ECC
Engine DRAM
Encode
Decode
ECC
Engine SRAM
Encode
Decode
NAND
ECC
Engine
RAID
Engine
Read flow w / decode
Host
Decode
CRC
Engine
Read
Encode
Decode
ECC
Engine DRAM
Encode
Decode
ECC
Engine SRAM
Encode
Decode
NAND
ECC
Engine
RAID
Engine
20 72 120
LDPC ECC Group Page RAID
protect data further!
STD BCH ECC
Probability of RBER
44 #of Bit Error /1KB
TLC when~Max PE
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FerriSSD®
Why FerriSSD®
Specifications
Easy to use
．Plug & Play only requires format/fdisk prior to use
．Small footprint for space-limited design
Lower total cost of ownership
．Rugged & Reliable (no moving parts)
．Eliminate requalification cost from NAND generation change
．Cost saving with low density FerriSSD, HDD are typically > 160GB capacity
Eliminate down time
．Support S.M.A.R.T. and advanced SSD Telemetry logging features
．IntelligentScan with DataRefresh for Data integrity enhancement
．Full End-to-End data path protection with recovery algorithms
．SMI’s 4th generation LDPC ECC engine with Group Page RAID
．Remote firmware update available via secured digital signature
IntelligentScan and DataRefresh to Enhance Data Integrity
SMI’s proprietary IntelligentScan function will activate automatically to
scan recharge, repair or retire the cell block (DataRefresh) according to the
host behavior and working environment (eg. ambient temperature). As a
result of the combination of IntelligentScan and DataRefresh, FerriSSD®
can effective prolong its service life much beyond typical NAND specifica-
tions.
Key Features
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© Copyright 2021 Silicon Motion, Inc.
Commercial Temp ( 0°C to + 70°C )
Industrial Temp ( -40°C to + 85°C )
SM619
SATA 3Gb/s
SLC
1-32GB
DRAM-Less
SM631
SATA 3Gb/s
SLCmode
1-32GB
DRAM-Less
SM651
SATA 3Gb/s
MLC
2-64GB
DRAM-Less
SM611
PATA
SLC
1-32GB
DRAM-Less
SM621
PATA
SLCmode
1-32GB
DRAM-Less
SM641
PATA
MLC
4-64GB
DRAM-Less
SM601
FERRISSD-PB-202106
Host Interface
NAND
Density
Embedded DRAM
Form Factor
Green Product
Temperature
Support
SATA 6Gb/s
3D SLCmode
3D MLCmode
3D TLCmode
4-480GB*
Yes
20mm x 16mm BGA
Compliant to RoHS (Restriction to Hazardous Substances Directive) 2.0 / Halogen free
IntelligentScan/DataRefresh to proactively extend Data
Retention beyond the typical NAND flash limitation
Based on 1Ynm MLC, @ 1,000 PE
Max ECC
Correctable
Preset / Programmable
Threshold
85℃ data retention simulation
DataRefresh
Error Bits
Month
50
45
40
35
30
25
20
15
10
5
00 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 66 69 72 75 78 81 84 87 90 93 96 99 102 105 108 111114117 120
Not to scale, for illustration purpose
Higher ambient temp
to increase Scan frequency
Thermo impact on NAND Data Retention
75.58 Mo
12 Mo
2.14 Mo
Temp SLC @ max PE MLC @ max PE
40 12 Mo
55 1.88 Mo
70 0.34 Mo
85 0.45 Mo 0.07 Mo
Based on Arrhenius Equation
For more information about FerriSSD®, please go to
www.siliconmotion.com or send e-mail to ferri@siliconmotion.com
*1TB in Q3'2022