NAND Controller
SST55VD020
SST55LC100MCompact Flash Card Controller
Fact Sheet
FEATURES:
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Industry Standard ATA/IDE Bus Interface
– Host Interface: 16-bit access
– Supports up to PIO Mode-6
– Supports up to Multi-word DMA Mode-4
– Supports up to Ultra DMA Mode-4
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Firmware Storage in Embedded SuperFlash®
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 Hardware ECC
– Corrects up to 8 random single-bit errors per
512-byte sector
Built-in Internal System Clock
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Interface for Standard NAND Flash Media
– Flash Media Interface: Single or Dual 8-bit access
- Supports up to 4 flash media devices per channel
- Supports up to 8 flash media devices directly
- Supports up to 64 flash media devices with
external decoding logic
– Supports Single-Level Cell (SLC) or Multi-Level Cell
(MLC) flash media
- 2 KByte and 4 KByte program page size
3.0V Power Supply
5.0V or 3.0V Host Interface Through VDDQ Pins
Low Current Operation:
– Active mode: 25 mA/35 mA (3.0V/5.0V) (typical)
– Sleep mode: 80 µA/100 µA (3.0V/5.0V) (typical)
Power Management Unit
– Immediate disabling of unused circuitry without host
intervention
– Zero wake-up latency
Write Protection
– WP#/PD# pin configurable by host for prevention of
data overwrites
20-byte Unique ID for Enhanced Security
– Factory Pre-programmed 10-byte Unique ID
– User-Programmable 10-byte ID
Programmable, Multitasking NAND Interface
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Multi-tasking Technology Enables Fast
Sustained Write Performance (Host to Flash)
– Supports up to 30 MB/sec
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Fast Sustained Read Performance (Flash to Host)
– Up to 30 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 – 14mm x 14mm
– 85-ball VFBGA – 6mm x 6mm
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All non-Pb (lead-free) Devices are RoHS Compliant
PRODUCT DESCRIPTION
The SST55VD020 is the heart of a high-performance,
flash media-based data storage system. The NAND Con-
troller recognizes the control, address, and data signals on
the ATA/IDE bus and translates them into memory
accesses for standard NAND-type flash media. Utilizing
both Single-Level Cell (SLC) and Multi-Level Cell
(MLC) flash media, this technology supports solid state
mass storage applications by offering new, expanded
functionality while enabling smaller, lighter designs with
lower power consumption.
data collection scanners, PDAs, handy terminals, personal
communicators, audio recorders, monitoring devices, and
set-top boxes.
The NAND Controller uses SuperFlash® memory technol-
ogy and is factory pre-programmed with an embedded
flash file system. Upon initial power-on, the SST55VD020
recognizes attached flash media devices, sets up a bad
block table, executes all necessary handshaking routines
for flash media support, and, finally, performs the low-level
format. This process typically takes about 3 second plus
0.5 seconds per gigabyte of drive capacity, allowing a 4
GByte flash drive to be fully initialized in about 5 seconds.
For added manufacturing flexibility, system debug, re-ini-
tialization, and user customization can be accomplished
through the ATA/IDE interface.
The NAND Controller supports standard ATA/IDE protocol
with up to PIO Mode-6, Multi-word DMA Mode-4, and
Ultra DMA Mode-4 interface. The ATA/IDE interface is
widely used in such products as portable and desktop
computers, portable media player, music players, handheld
©2009 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.
S71355(01)-01-000
1
05/09