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SST55VD020单片机解密

时间:2010-07-19 09:14:51

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TheSST55VD020 high-performance NAND Controlleroffers sustained read and write performance up to 30.0MB/sec. The SST55VD020 directly supports up to 8flash media devices or, through simple decoding logic,can support up to 64 flash media devices.The controller also provides a WP#/PD# pin to protect criti-cal information stored in the flash media from unauthorized
overwrites.
FEATURES:
• 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
• 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
• 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
• Multi-tasking Technology Enables Fast
Sustained Write Performance (Host to Flash)
– Supports up to 30 MB/sec
• 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
• All non-Pb (lead-free) Devices are RoHS Compliant


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