MD4331-D1G-V3Q18-X/Y SanDisk, MD4331-D1G-V3Q18-X/Y Datasheet - Page 49

• Manufacturer Part Number: MD4331-D1G-V3Q18-X/Y
• Description: IC MDOC G3 1GB 69-FBGA
• Manufacturer: SanDisk

Specifications of MD4331-D1G-V3Q18-X/Y

• Format - Memory: FLASH
• Memory Type: FLASH - Nand
• Memory Size: 1G (128M x 8)
• Speed: 55ns
• Interface: Parallel
• Voltage - Supply: 2.5 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 585-1134

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Applications that use Mobile DiskOnChip G3 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, or by entering Reset
mode via software (the Programmable Boot Block addresses can be accessed in Deep Power-Down
mode).
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 18), it is completely transparent to the
application.
TrueFFS technology support includes:
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TrueFFS technology features:
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Toggle the DPD input as defined by the DPD Control register.
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
Power failure management
TrueFFS Technology
Figure 18: TrueFFS Location in System Hierarchy
Preliminary Data Sheet, Rev. 1.1
OS File System
DiskOnChip
TrueFFS
Application
Mobile DiskOnChip G3
91-SR-011-05-8L