MD8331-D2G-V3-X-P SanDisk, MD8331-D2G-V3-X-P Datasheet - Page 33

• Manufacturer Part Number: MD8331-D2G-V3-X-P
• Description: IC MDOC G4 2GB 69-FBGA
• Manufacturer: SanDisk

Specifications of MD8331-D2G-V3-X-P

• Format - Memory: FLASH
• Memory Type: FLASH - Nand
• Memory Size: 2G (256M x 8)
• Speed: 33ns
• Interface: Parallel
• Voltage - Supply: 2.5 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 69-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 585-1149-2; MD8831-D2G-V3-X-P; MD8832-D2G-V3-X-P

Applications that use DiskOnChip G4 as a boot device must ensure that the device is not in Deep
Power-Down mode before reading the Boot vector/instructions. This can be done by pulsing
RSTIN# to the asserted state and waiting for the BUSY# output to be negated, toggling the DPD
signal, or by entering Reset mode via software.
6.4
6.4.1 General Description
M-Systems’ patented TrueFFS technology was designed to maximize the benefits of flash memory
while overcoming inherent flash limitations that would otherwise reduce its performance, reliability
and lifetime. TrueFFS emulates a hard disk, making it completely transparent to the OS. In addition,
since it operates under the OS file system layer (see Figure 10), it is completely transparent to the
application.
TrueFFS technology support includes:
TrueFFS technology features:
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• Toggle the DPD input as defined by the DPD Control register, wait a minimum of 700 nS,
• Binary driver support for all major OSs
• TrueFFS Software Development Kit (TrueFFS SDK)
• Boot Software Development Kit (BDK)
• Support for all major CPUs, including 8, 16 and 32-bit bus architectures.
• Block device API
• Flash file system management
• Bad-block management
• Dynamic virtual mapping
• Dynamic and static wear-leveling
and then perform a read/write cycle with normal timing, as specified in the timing diagrams.
TrueFFS Technology
Figure 10: TrueFFS Location in System Hierarchy
Data Sheet (Preliminary) Rev. 0.3
OS File System
DiskOnChip
Application
TrueFFS
DiskOnChip G4 128MB (1Gb)/256MB (2Gb) 1.8V
92-DS-1105-00