ATA Flash Disk Controller
SST55LD019M
SST55LD019MHigh-Performance ATA Flash Disk Controller
Advance Information
FEATURES:
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Industry Standard ATA/IDE Bus Interface
•
Pre-programmed Embedded Firmware
– Host Interface: 8- or 16-bit access
– Supports up to PIO Mode-4
– Supports up to Multi-word DMA Mode-2
– 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)
•
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
•
•
– Up to 10MB/sec
•
•
•
Low power, 3.3V core operation
5.0V or 3.3V host interface through VDDQ 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
•
•
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
•
•
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Commercial and Industrial Temperature Ranges
– 0°C to 70°C for commercial operation
– -40°C to +85°C for industrial operation
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•
Packages Available
– 100-lead TQFP – 16mm x 16mm
– 84-ball TFBGA – 9mm x 9mm
– 85-ball VFBGA – 6mm x 6mm
– Industrial Controller requires external POR# signal
•
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.
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 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.
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.
S71312-01-000
1
12/06
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