1.8” SATA S3 SSD Specification
1.8” SATA S3 SSD
Specification
Version 1.3
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Content
1. General Description .................................................................................................... 3
1.1 Overview ........................................................................................................... 3
1.2 Block Diagram................................................................................................... 3
2. Product Specifications ................................................................................................ 5
2.1 Support Capacity ............................................................................................... 5
2.2 Performance ....................................................................................................... 5
2.3 ECC scheme ...................................................................................................... 5
2.4 Environmental Conditions ................................................................................. 5
3. Electrical Specifications ............................................................................................. 6
3.1 Pin and Signal assignment ................................................................................. 6
3.3 Power Consumption .......................................................................................... 6
4. Command Description................................................................................................ 7
4.1 ATA Command List .......................................................................................... 7
4.2 Identify Device Data.......................................................................................... 9
5. Physical Dimension .................................................................................................. 12
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1. General Description
1.1 Overview
Unity Digital 1.8” SATA Solid State Disk (SSD) delivers all the advantages of Flash Disk
technology with the Serial ATA II interface, fully compliant with standard 1.8‐inch form
factor. SATA Drives are replacing the older and slower (PATA) interface in embedded
environments.
The 1.8” SATA SSD is based on the uSATA connector which contains 7‐pin interface for
data segment and 9‐pin for power segment, designed to operate at a maximum operating
frequency of 150MHz with 30MHz external crystal. Its capacity could provide a wide
range from 16GB to up to 128GB. Also it can reach 210MB/s
read as well as 140MB/s
write high performance based on MLC flash (with 64MB DDR enabled
and measured
by CrystalDiskMark v2.1). The power consumption of Flash Disk is much lower than
traditional Hard Drive. In addition, Unity Digital SSD provides hot‐swapping abilities
when removing, replacing or upgrading flash disks
1.2 Block Diagram
Unity Digital Flash Controller Block Diagram
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Electrical/Physical interface
a. SATA interface

Support SATA 1.5 Gbps and 3 Gbps interface.
b. DDR1 IO

Support DDR1 I/O interface
c. Flash IO

Support 1.8V and 3.3V voltage level

Support 1.8V for ONFI Flash

Support 3.3V for conventional Asynchronous Flash
Controller Features
a. SATA II

SATA Revision 2.6 compliant.

Compatible with SATA 1.5Gbps and 3Gbps interface.

Power management supported

Support expanded register for SATA protocol 48 bits addressing mode

Embedded BIST function of SATA PHY for low cost mass production
b. NAND Flash Interface

Build‐in hardware ECC circuit (48bit/2KB).

Support all types of SLC Small/Large Block NAND Flash.

Support all types of MLC Small/ Large Block NAND flash.

ONFI2.0 Interface support : 4 channels max, mode 4.

Bus Width: 8/16 bit.

Support 4 TSOP/uLGA Flash chip enable.
c. DDR1 interface

16 bit data bus.

Data Rate: 300Mbps.

Support Capacity : 64MB
d. Build in 32 bits micro‐controller
e. UART
f. GPIO
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Unity Digital SSD Block Diagram with DDR cache buffer
2. Product Specifications
2.1 Support Capacity
From 16GB to up 128GB (support 48bit addressing mode)
2.2 Performance
Its performance can reach maximum 220MB/s Sequential Read and 100MB/s Sequential
Write with 64MB DDR cache buffer based on empty Toshiba MLC Flash (CrystalDiskMark
v2.1 1000MB test unit). The total CE number must be 32 to achieve above reference data.
2.3 ECC scheme
Support 48/32/28 bit ECC correct per 2K Byte data
2.4 Environmental Conditions
☆Temperature: ‐40°C to 85°C in storage / 0°C to 70°C in operating
☆Humidity: RH = 95% under 55°C
☆Shock 1500G/0.5ms
☆Vibration 80‐2000Hz/20G
☆Booting feature from Windows OS
☆Acquired RoHS, WHQL, CE/FCC certificates
☆Acoustic = 0dB
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3. Electrical Specifications
3.1 Pin and Signal assignment
Signal Segment Pinout
Power Segment Pinout
3.3 Power Consumption
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4. Command Description
4.1 ATA Command List
Description
OP Code
Check power mode
E5h
Support
◎
Check power mode
98h
◎
Download Microcode
92h
◎
Execute drive diagnostic
90h
◎
Flush cache
E7h
◎
Flush cache Ext
Eah
◎
Identify device
Ech
◎
Idle
E3h
◎
Idle immediate
E1h
◎
Idle immediate
95h
◎
Idle
97h
◎
Initialize drive parameters
91h
◎
NOP
00h
◎
Read buffer
E4h
◎
Read DMA (w/retry)
C8h
◎
Read DMA (w/o retry)
C9h
◎
Read Log Ext
2Fh
◎
Read multiple
C4h
◎
Read multiple Ext
29h
◎
Read sector(s) (w/retry)
20h
◎
Read sector(s) (w/o retry)
21h
◎
Read sector(s) Ext
24h
◎
Read DMA Ext
25h
◎
Read verify sector(s) (w/retry)
40h
◎
Read verify sector(s) (w/o retry)
41h
◎
Read FPDMA Ext
60h
◎
Read Verify Ext
42h
◎
Recalibrate
1xh
◎
Security Disable Password
F6h
◎
Security Erase Prepare
F3h
◎
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Security Erase Unit
F4h
◎
Security Freeze Lock
F5h
◎
Security Set Password
F1h
◎
Security Unlock
F2h
◎
Seek
7xh
◎
Set features
Efh
◎
Set Max Address Ext
37h
◎
Set multiple mode
C6h
◎
Sleep
E6h
◎
Sleep
99h
◎
Smart
B0h
◎
Standby
E2h
◎
Standby immediate
E0h
◎
Standby immediate
94h
◎
Standby
96h
◎
Write buffer
E8h
◎
Write DMA (w/retry)
Cah
◎
Write DMA (w/o retry)
CBh
◎
Write Log Ext
3Fh
◎
Write multiple
C5h
◎
Write sector(s) (w/retry)
30h
◎
Write sector(s) (w/o retry)
31h
◎
Write sector(s) Ext
34h
◎
Write DMA Ext
35h
◎
Write sector(s) (w/o erase)
38h
◎
Write FPDMA Ext
61h
◎
Write multiple Ext
39h
◎
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4.2 Identify Device Data
The following table details the sector data returned by the IDENTIFY DEVICE command.
F: Fixed
Word
V: Variable
Default Value
Description
X: Both
0
F
045Ah
General configuration bit-significant information
1
X
3FFFh
Obsolete – Number of logical cylinders (16383)
2
V
0000h
Specific configuration
3
X
0010h
Obsolete – Number of logical heads (16)
4-5
X
02007E00h
6
X
003Fh
Obsolete – Number of logical sectors per logical track (63)
7-8
V
0h
Reserved for assignment by the Compact Flash Association
9
X
0h
Retired
10-19
F
Varies
20-21
X
0h
Retired
22
X
0h
Obsolete
23-26
F
Varies
Firmware revision (8 ASCII characters)
27-46
F
Varies
Model number (xxxxxxxx)
47
F
8001h
7:0- Maximum number of sectors transferred per interrupt on
Retired
Serial number (20 ASCII characters)
MULTIPLE commands
48
F
0h
Reserved
49
F
0F00h
Capabilities
50
F
4000h
Capabilities
51-52
X
00000200h
53
F
0007h
Words 88 and 70:64 valid
54
X
3FFFh
Obsolete – Number of logical cylinders (16383)
55
X
0010h
Obsolete – Number of logical heads (16)
56
X
003Fh
Obsolete – Number of logical sectors per track (63)
57-58
X
00FBFC10h
59
F
0100h
Obsoleted
Obsolete
Number of sectors transferred per interrupt on MULTIPLE
commands
60-61
F
037DFF40h
Total number of user addressable sectors
(32G)
xxxxxxxxh
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(64G)
62
X
0h
Obsolete
63
F
0007h
Multi-word DMA modes supported/selected
64
F
0003h
PIO modes supported
65
F
0078h
Minimum Multiword DMA transfer cycle time per word
66
F
0078h
Manufacturer’s recommended Multiword DMA transfer cycle time
67
F
0078h
Minimum PIO transfer cycle time without flow control
68
F
0078h
Minimum PIO transfer cycle time with IORDY flow control
69-70
F
0h
Reserved
71-74
F
0h
Reserved for the IDENTIFY PACKET DEVICE command
75
F
0h
Queue depth
76
F
0002h
77
F
0h
78
F
0000h
Serial ATA features supported
79
V
0000H
Serial ATA features enabled
80
F
00F8h
Major Version Number
81
F
0021h
Minor Version Number
82
F
7429h
Command set supported
83
F
7008h
Command set supported
84
F
4000h
Command set/feature supported extension
85
V
7028h
Command set/feature enabled
86
V
3000h
Command set/feature enabled
87
V
4000h
Command set/feature default
88
V
007Fh
Ultra DMA Modes
89
F
0000h
Time required for security erase unit completion
90
F
0000h
Time required for Enhanced security erase completion
91
V
0h
92
V
0000h
93
F
0h
Serial SATA capabilities
Reserved for future Serial ATA definition
Current advanced power management value
Master Password Revision Code
Hardware reset result. The contents of the bits (12:0) of this word
shall change only during the executeion of s hardware reset.
94
V
0h
Vebdor’s recommended and actual acoustic management value
95
F
0h
Stream Minimum Request Size
96
V
0h
Streaming Transfer Time – DMA
97
V
0h
Streaming Access Latency – DMA and PIO
98-99
F
0h
Streaming Performance Granularity
100-103
V
Xxxxxxxxh
Maximum user LBA for 48 bit Address feature set
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(32G)
xxxxxxxxh
(64G)
xxxxxxxxh
(128G)
xxxxxxxxh
(256G)
104
V
0h
Streaming Transfer Time – PIO
105
F
0h
Reserved
106
F
0h
Physical sector size / Logical sector size
107
F
0h
Inter-seek delay for ISO-7779 acoustic testing in microseconds
108-111
F
0h
Unique ID
112-115
F
0h
Reserved
116
V
0h
Reserved
117-118
F
0h
Words per logical Sector
119
F
0h
Supported settings
120
F
0h
Command set/Feature Enabled/Supported
121-126
F
0h
Reserved
127
F
0h
Removable Media Status Notification feature set support
128
V
0h
Security status
129-159
X
0h
Vendor specific
160
F
0h
Compact Flash Association (CFA) power mode 1
161-175
X
0h
Reserved for assignment by the CFA
176-205
V
0h
Current media serial number
206-216
F
0h
Reserved
217
F
0h
Non-rotating media device
218-221
F
0h
Reserved
222
F
0h
Reserved
223-233
F
0h
Reserved
234
0h
Reserved
235
0h
Reserved
Reserved
236-254
F
0h
255
X
Varies
Integrity word (Checksum and Signature)
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5. Physical Dimension
Dimension: 77mm(L) x 54mm(W) x 5mm(H)
Weight: 33.3g
Bottom/Top view
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Frame
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Revision History
Revision
History
Draft Date
1.0
First Release
2009/10/6
1.1
Modify the range of available capacity
2009/10/19
Remark
Modify the performance data
1.2
Add the data of power consumption and
weight
2009/11/13
1.3
Modify the performance data
2010/5/13
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