RC28F320J3F75A Micron Technology Inc, RC28F320J3F75A Datasheet - Page 45

• Manufacturer Part Number: RC28F320J3F75A
• Manufacturer: Micron Technology Inc

Specifications of RC28F320J3F75A

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Numonyx
Table 31: Word-Wide Protection Register Addressing
Table 32: Byte-Wide Protection Register Addressing
9.8.8
Jan 2011
208032-03
Note:
Note:
LOCK
LOCK
Byte
A
B
C
D
0
1
2
3
4
5
6
7
8
9
E
F
Word
LOCK
0
1
2
3
4
5
6
7
All address lines not specified in the above table must be 0 when accessing the Protection Register (i.e., A[MAX:9] = 0.)
All address lines not specified in the above table must be 0 when accessing the Protection Register, i.e., A[MAX:9] = 0.
®
Embedded Flash Memory (J3 65 nm) Single Bit per Cell (SBC)
Factory
Factory
Factory
Factory
Factory
Factory
Factory
Factory
Both
Both
User
User
User
User
User
User
User
User
Use
VPEN Protection
When it’s necessary to protect the entire array, global protection can be achieved using
a hardware mechanism using VPEN. Whenever a valid voltage is present on VPEN,
blocks within the main flash array can be erased or programmed. By grounding VPEN,
blocks within the main array cannot be altered – attempts to program or erase blocks
will fail resulting in the setting of the appropriate error bit in the Status Register. By
holding VPEN low, absolute write protection of all blocks in the array can be achieved.
Factory
Factory
Factory
Factory
Both
User
User
User
User
Use
A8
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
A7
A8
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
A7
A6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
A6
A5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
A5
A4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
A4
A3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
1
A3
A2
0
0
0
0
1
1
1
1
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
A2
A1
0
0
1
1
0
0
1
1
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
Datasheet
A1
A0
0
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
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