ATA Flash Disk Controller
SST55LD019M
SST55LD019MHigh-Performance ATA Flash Disk Controller
Advance Information
FEATURES:
• Industry Standard ATA/IDE Bus Interface
– Host Interface: 8- or 16-bit access
– Supports up to PIO Mode-4
– Supports up to Multi-word DMA Mode-2
• Interface for standard NAND Flash Media
– Flash Media Interface: 8-bit or 16-bit access
- Supports up to 8 flash media devices directly
- Supports up to 64 flash media devices with
external decoding logic
– Supports Multi-Level Cell (MLC) and high
density Single-Level Cell (SLC) flash media
- 2 KByte program page size only
• Low power, 3.3V core operation
• 5.0V or 3.3V host interface through V
DDQ
pins
• Low current operation:
– Active mode: 25 mA/35 mA (3.3V/5.0V) (typical)
– Sleep mode: 40 µA/50 µA (3.3V/5.0V) (typical)
• Power Management Unit
– Immediate disabling of unused circuitry
• Expanded Data Protection
– WP_PD# pin configurable by firmware for
prevention of data overwrites
• 20-byte Unique ID for Enhanced Security
– Factory Pre-programmed 10-byte Unique ID
– User-Programmable 10-byte ID
• Integrated Voltage Detector
– Industrial Controller requires external POR# signal
• Pre-programmed Embedded Firmware
– Performs self-initialization on first system Power-on
– Executes industry standard ATA/IDE commands
– Implements dynamic wear-leveling algorithms to
substantially increase the longevity of flash media
– Embedded Flash File System
– Built-in ECC corrects up to 3 random 12-bit
symbols of error per 512-byte sector
• Internal or External System Clock Option
• Multi-tasking Technology enables Fast
Sustained Write Performance (Host to Flash)
– Up to 10MB/sec
• Fast Sustained Read Performance (Flash to Host)
– Up to 10 MB/sec
• Automatic Recognition and Initialization of
Flash Media Devices
– Seamless integration into a standard SMT
manufacturing process
– 5 sec. (typical) for flash drive recognition and
setup
• Commercial and Industrial Temperature Ranges
– 0°C to 70°C for commercial operation
– -40°C to +85°C for industrial operation
• Packages Available
– 100-lead TQFP – 16mm x 16mm
– 84-ball TFBGA – 9mm x 9mm
– 85-ball VFBGA – 6mm x 6mm
• All non-Pb (lead-free) devices are RoHS compliant
PRODUCT DESCRIPTION
SST’s ATA Flash Disk Controller is the heart of a high-
performance, flash media-based data storage system.
The ATA Flash Disk Controller recognizes the control,
address, and data signals on the ATA/IDE bus and trans-
lates them into memory accesses to the standard NAND-
type flash media. The SST55LD019M device supports
Multi-Level Cell (MLC) and high density Single-Level
Cell (SLC) flash media. This technology suits solid state
mass storage applications offering new, expanded func-
tionality while enabling smaller, lighter designs with lower
power consumption.
The ATA/IDE interface is widely used in such products as
portable and desktop computers, digital cameras, music
players, handheld data collection scanners, PDAs, handy
terminals, personal communicators, audio recorders, moni-
toring devices, and set-top boxes. SST’s ATA Flash Disk
Controller supports standard ATA/IDE protocol with up to
PIO Mode-4 and Multi-word DMA Mode-2 interface.
©2005 Silicon Storage Technology, Inc.
S71312-00-000
2/06
1
Utilizing SST’s proprietary SuperFlash memory technology,
the ATA Flash Disk Controller is factory pre-programmed
with an embedded flash file system which, upon initial
Power-on, recognizes the attached flash media devices,
sets up a bad block table, executes all necessary hand-
shaking routines for flash media support, and, finally, per-
forms the low-level format. This process typically takes
about 3 sec + 0.5 sec/GByte of drive capacity, allowing a
2 GByte flash drive to be fully initialized in about 4 seconds.
This technology enables a very fast, completely seam-
less integration of flash drives into an embedded design.
For added manufacturing flexibility, system debug, re-ini-
tialization, and user customization can be accomplished
either through the ATA/IDE interface, for ATA Disk Module
or flash drive products, or through the Serial Communi-
cation Interface (SCI), for fully embedded ATA Flash Disk
Controller designs.
The SST logo and SuperFlash are registered trademarks of Silicon Storage Technology, Inc. Some content is reproduced from the CompactFlash
Specification (2.0) by permission of the CompactFlash Association. Other content is reproduced from the ATA/ATAPI-6 (T13/1410D revision 3b) spec-
ification by permission of the National Committee for Information Technology Standards. These specifications are subject to change without notice.
ATA Flash Disk Controller
SST55LD019M
Advance Information
The SST55LD019M high-performance ATA Flash Disk
Controller is optimized to achieve the highest perfor-
mance from MLC flash and offers sustained read and
write performance up to 10.0 MB/sec. The
SST55LD019M can directly support up to 8 flash
media devices or, through simple decoding logic, can
support up to 64 flash media devices. Users can select
either an internal or external system clock option for optimal
performance vs. the supply current.
The SST55LD019M controller provides a WP_PD# pin to
protect critical information stored in the flash media from
unauthorized overwrites.
The ATA Flash Disk Controller comes pre-programmed
with a 10-byte unique serial ID. For even greater system
security, the user has the option of programming an addi-
tional 10 Bytes of ID space to create a unique, 20-byte ID.
The ATA Flash Disk Controller comes packaged in an
industry-standard, 100-lead TQFP package, an 84-ball
TFBGA package, or a 85-ball VFBGA package for easy
integration into an SMT manufacturing process.
©2005 Silicon Storage Technology, Inc.
S71312-00-000
2/06
2
ATA Flash Disk Controller
SST55LD019M
Advance Information
TABLE OF CONTENTS
PRODUCT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
LIST OF FIGURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
LIST OF TABLES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.0 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Performance-optimized ATA Flash Disk Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.0 FUNCTIONAL BLOCKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.0 PIN ASSIGNMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.0 CAPACITY SPECIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1 Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.0 MANUFACTURING SUPPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 ATA/IDE Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Serial Communication Interface (SCI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.0 EXTERNAL CLOCK INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.0 CONFIGURABLE WRITE PROTECT/POWER-DOWN MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.1 Write Protect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.2 Power-down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.0 POWER-ON AND BROWN-OUT RESET CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9.0 I/O TRANSFER FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
10.0 SOFTWARE INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
10.1 ATA Flash Disk Controller Drive Register Set Definitions and Protocol. . . . . . . . . . . . . . . . . . . . . . . . 19
10.2 ATA Flash Disk Controller Command Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
11.0 ELECTRICAL SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
11.1 DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
11.2 AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
12.0 APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
12.1 Differences between SST’s ATA Flash Disk Controller and ATA/ATAPI-5 Specifications. . . . . . . . . . 55
13.0 PRODUCT ORDERING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
13.1 Valid Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
14.0 PACKAGING DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
©2005 Silicon Storage Technology, Inc.
S71312-00-000
2/06
3
ATA Flash Disk Controller
SST55LD019M
Advance Information
LIST OF FIGURES
FIGURE 2-1: ATA Flash Disk Controller Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
FIGURE 3-1: Pin Assignments for 100-lead TQFP (TQW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
FIGURE 3-2: Pin Assignments for 84-ball TFBGA (BW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
FIGURE 3-3: Pin Assignments for 85-ball VFBGA (MVW)
..................................... 9
FIGURE 8-1: Power-on and Brown-out Reset Timing (Commercial Temperature) . . . . . . . . . . . . . . . . . . . 17
FIGURE 8-2: Power-on and Brown-out Reset Timing (Industrial Temperature) . . . . . . . . . . . . . . . . . . . . . 17
FIGURE 11-1: AC Input/Output Reference Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
FIGURE 11-2: Host Side Interface I/O Read Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
FIGURE 11-3: Host Side Interface I/O Write Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
FIGURE 11-4: Initiating a Multi-word DMA Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
FIGURE 11-5: Sustaining a Multi-word DMA Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
FIGURE 11-6: Device Terminates a Multi-word DMA Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
FIGURE 11-7: Host Terminates a Multi-word DMA Data Transfer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
FIGURE 11-8: Media Command Latch Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
FIGURE 11-9: Media Address Latch Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
FIGURE 11-10: Media Data Loading Latch Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
FIGURE 11-11: Media Data Read Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
FIGURE 14-1: 100-lead Thin Quad Flat Pack (TQFP) SST Package Code: TQW . . . . . . . . . . . . . . . . . . . 57
FIGURE 14-2: 85-ball Very-Thin, Fine-Pitch, Ball Grid Array (VFBGA) SST Package Code: MVW . . . . . . 58
FIGURE 14-3: 84-ball Thin, Fine-pitch, Ball Grid Array (TFBGA) SST Package Code: BW . . . . . . . . . . . . 59
©2005 Silicon Storage Technology, Inc.
S71312-00-000
2/06
4
ATA Flash Disk Controller
SST55LD019M
Advance Information
LIST OF TABLES
TABLE 3-1: Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
TABLE 4-1: Default ATA Flash Drive Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
TABLE 4-2: Functional Specification of SST55LD019M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
TABLE 8-1: Power-on and Brown-out Reset Timing (Commercial Temperature) . . . . . . . . . . . . . . . . . . . 17
TABLE 8-2: Power-on and Brown-out Reset Timing (Industrial Temperature) . . . . . . . . . . . . . . . . . . . . . 17
TABLE 9-1: I/O Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
TABLE 10-1: Task File Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
TABLE 10-2: ATA Flash Disk Controller Command Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
TABLE 10-3: Diagnostic Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
TABLE 10-4: Identify-Drive Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
TABLE 10-5: Features Supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
TABLE 10-6: Transfer Mode Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
TABLE 10-7: Error and Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
TABLE 11-1: Absolute Maximum Power Pin Stress Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
TABLE 11-2: Recommended System Power-on Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
TABLE 11-3: Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
TABLE 11-4: Reliability Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
TABLE 11-5: DC Characteristics for Media Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
TABLE 11-6: DC Characteristics for Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
TABLE 11-7: Host Side Interface I/O Read Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
TABLE 11-8: Host Side Interface I/O Write Timing Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
TABLE 11-9: Multi-word DMA Timing Parameters - Mode 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
TABLE 11-10: SST55LD019M Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
TABLE 14-1: Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
©2005 Silicon Storage Technology, Inc.
S71312-00-000
2/06
5
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