MD3331-D64-V3-X SanDisk, MD3331-D64-V3-X Datasheet - Page 34

• 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

6.3
TrueFFS utilizes an 8KB memory window in the CPU address space consisting of four 2KB
sections, as depicted in Figure 11. When in Reset mode, the Programmable Boot Block in sections 0
and 3 will show the IPL (1KB) of the first 16MB of the dual die, aliased twice. Read cycles from
sections 1 and 2 always return the value 00H to create a fixed and known checksum.
After setting the MAX_ID field in the Configuration register (done by IPL0), the second copy of
IPL0 is replaced with the IPL of the second 16MB device of the dual die, thereby creating a 2KB
Programmable Boot Block.
When in Normal mode, sections 1 and 2 are used for the internal registers. The Programmable Boot
Block in section 0 contains IPL0 and IPL1. Section 3 contains IPL0 aliased twice.
Note: The addresses described here are relative to the absolute starting address of the 8KB memory
34
window.
8KB Memory Window for Mobile DiskOnChip Plus 32MB
Figure 12: Mobile DiskOnChip Plus 32MB Memory Map
1000H
1800H
000H
800H
Programmable
Programmable
[000H-3FFH]
Reset Mode
boot block
(2 aliases)
boot block
(2 aliases)
00H
00H
[IPL]
Data Sheet, Rev. 1.8
Section 0
Section 1
Section 2
Section 3
Programmable
Programmable
Normal Mode
Flash area
(+ aliases)
(+ aliases)
[IPL0, IPL1]
[IPL0, IPL1]
Registers
boot block
(2 aliases)
boot block
window
Control
Mobile DiskOnChip Plus 16/32MByte
95-SR-000-10-8L