MD3331-D64-V3-X SanDisk, MD3331-D64-V3-X Datasheet - Page 22

• 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

3.8
Mobile DiskOnChip Plus uses a two-stage pipeline mechanism, designed for maximum
performance while enabling on-the-fly data manipulation, such as read/write protection and Error
Detection/Error Correction.
3.9
The Control & Status block contains registers responsible for transferring the address, data and
control information between the DiskOnChip TrueFFS driver and the flash media. Additional
registers are used to monitor the status of the flash media (ready/busy) and of the DiskOnChip
controller. For further information on the Mobile DiskOnChip Plus registers, refer to Section 7).
3.10 Flash Architecture
A 16MB flash bank consists of 1024 blocks organized in 32 pages, as follows:
•
•
Mobile DiskOnChip Plus 32MB consists of two stacked 16MB devices, each designed with a
single-bank 16MB flash array, consisting of 1024 blocks organized in 32 pages.
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Page – Each page contains 512 bytes of user data and a 16-byte extra area that is used to store
flash management and EDC/ECC signature data, as shown in Figure 6. A page is the minimal
unit for read/write operations.
Block – Each block contains 32 pages (total of 16KB), as shown in Figure 7. A block is the
minimal unit that can be erased, and is sometimes referred to as an erase block.
Data Pipeline
Control & Status
512 Bytes
Figure 7: Block Structure
Figure 6: Page Structure
512 Bytes
Data Sheet, Rev. 1.8
User Data
16 Bytes
Flash Management &
ECC/EDC Signature
16 Bytes
Mobile DiskOnChip Plus 16/32MByte
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