MD3331-D64-V3-X SanDisk, MD3331-D64-V3-X Datasheet - Page 20

• Manufacturer Part Number: MD3331-D64-V3-X
• Manufacturer: SanDisk
• Type: Flash Diskr

Specifications of MD3331-D64-V3-X

• Density: 64MByte
• Operating Supply Voltage (typ): 3.3V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Package Type: FBGA
• Mounting: Surface Mount
• Pin Count: 69
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.5V
• Operating Supply Voltage (max): 3.6V
• Programmable: Yes
• Lead Free Status / Rohs Status: Not Compliant

A protection area may be protected by either/both of these hardware mechanisms:
•
•
The size and location of each area is user-defined to provide maximum flexibility for the target
platform and application requirements.
The configuration parameters of the protected areas are stored on the flash media and are
automatically downloaded from the flash to the PSM upon power-up, to enable robust protection
throughout the flash lifetime.
In the event of an attempt to bypass the protection mechanism, illegally modify the protection key
or in any way sabotage the configuration parameters, the entire DiskOnChip becomes both read and
write protected, and is completely inaccessible.
For further information on the hardware protection mechanism, refer to Section 4.
3.4.2
Each Mobile DiskOnChip Plus is assigned a 16-byte UID number. Burned onto the flash during
production, the UID cannot be altered and is unique worldwide. The UID is essential in security-
related applications, and can be used to identify end-user products in order to fight fraudulent
duplication by imitators.
The UID on Mobile DiskOnChip Plus eliminates the need for an additional on-board ID device,
such as a dedicated EEPROM.
3.4.3
The 6KB OTP area is user-programmable for complete customization. The user can write to this
area once, after which it is automatically locked permanently. After it is locked, the OTP area
becomes read only, just like a ROM device.
Typically, the OTP area is used to store customer and product information such as: product ID,
software version, production data, customer ID and tracking information.
3.5
During boot, code must be executed directly from the flash media, rather than first copied to the
host RAM and then executed from there. This direct XIP code execution functionality is essential
for booting.
The Programmable Boot Block with XIP functionality enables Mobile DiskOnChip Plus to act as a
boot ROM device in addition to being a flash disk. This unique design enables the user to benefit
from the advantages of NOR flash, typically used for boot and code storage, and NAND flash,
typically used for data storage. No other boot device is required on the motherboard.
Mobile DiskOnChip Plus 16MB contains a 1KB Programmable Boot Block, whereas Mobile
DiskOnChip Plus 32MB contains a 2KB Programmable Boot Block. The Download Engine (DE)
described in the next section expands the functionality of this block by copying the boot code from
the flash into the boot block.
20
64-bit protection key
Hard-wired LOCK# signal
Unique Identification (UID) Number
One-Time Programmable (OTP) Area
Programmable Boot Block with eXecute In Place (XIP) Functionality
Data Sheet, Rev. 1.8
Mobile DiskOnChip Plus 16/32MByte
95-SR-000-10-8L