MD8331-D2G-V3-X-P SanDisk, MD8331-D2G-V3-X-P Datasheet - Page 31

• 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

6.
DiskOnChip G4 operates in one of three basic modes:
The current mode of the chip can always be determined by reading the DiskOnChip Control
register. Mode changes can occur due to any of the following events:
31
• Normal mode
• Reset mode
• Deep Power-Down mode
• Assertion of the RSTIN# signal sets the device in Reset mode.
• During host power-up, boot detector circuitry sets the device in Reset mode.
• A valid write sequence to DiskOnChip G4 sets the device in Normal mode. This is done
• Switching back from Normal mode to Reset mode can be done by a valid write sequence to
• Deep Power-Down
• A valid write sequence, initiated by software, sets the device from Normal mode to Deep
• Asserting the RSTIN# signal and holding it in this state puts the device in Deep Power-
• Toggling the DPD signal as defined by the DPD Control register.
M
automatically by the TrueFFS driver on power-up (reset sequence end).
DiskOnChip G4, or by triggering the boot detector circuitry (via a soft reset).
Power-Down mode. Twelve read cycles from offset 0x1FFF set the device back to Normal
mode. Alternately, the device can be set back to Normal mode with an extended access
time during a read from the Programmable Boot Block.
Down mode. When RSTIN# is released, the device is left in Reset mode.
ODES OF
Power-Down
O
Deep Power-
Power Off
Down Mode
PERATION
Figure 9: Operation Modes and Related Events
Power-Down
Assert RSTIN#
Data Sheet (Preliminary) Rev. 0.3
12x Read Cycles from
Release RSTIN#
extended read cycle
offset 0x1FFF or
Software Control
Assert RSTIN#
Power-Down
Power-Up
Software Control
Assert RSTIN#,
Boot Detect or
Normal Mode
Reset Mode
DiskOnChip G4 128MB (1Gb)/256MB (2Gb) 1.8V
Sequence
Reset
End
92-DS-1105-00