M25PE40-VMP6TP Numonyx, B.V., M25PE40-VMP6TP Datasheet - Page 16

• Manufacturer Part Number: M25PE40-VMP6TP
• Description: 4 Mbit, page-erasable serial Flash memory with byte alterability, 75 MHz SPI bus, standard pinout
• Manufacturer: Numonyx, B.V.

Operating features
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Table 2.
Table 3.
1. The device is ready to accept a Bulk Erase instruction if, and only if, all Block Protect bits (BP2, BP1, BP0)
Sector Lock Register
BP2
Status Register
Down bit
bit
0
0
0
0
1
1
1
1
Lock
are 0.
The second Software Protected mode (SPM2) uses the Block Protect bits (BP2,
BP1, BP0, see
only.
content
0
0
1
1
BP1
bit
0
0
1
1
0
0
1
1
BP0
Lock bit
bit
Software protection truth table (Sectors 0 to 7, 64-Kbyte granularity)
Protected area sizes
Write
0
1
0
1
0
1
0
1
0
1
0
1
none
Upper eighth (sector 7)
Upper quarter (two sectors: 6 and
7)
Upper half (four sectors: 4 to 7)
All sectors (eight sectors: 0 to 7)
All sectors (eight sectors: 0 to 7)
All sectors (eight sectors: 0 to 7)
All sectors (eight sectors: 0 to 7)
Section
Sector unprotected from Program/Erase/Write operations, protection status
reversible
Sector protected from Program/Erase/Write operations, protection status
reversible
Sector unprotected from Program/Erase/Write operations,
sector protection status cannot be changed except by a reset or power-up.
Sector protected from Program/Erase/Write operations,
sector protection status cannot be changed except by a reset or power-up.
Protected area
6.4.3)) to allow part of the memory to be configured as read-
Memory content
Protection status
none
none
none
none
All sectors
Lower seven-eighths (seven sectors: 0 to 6)
Lower three-quarters (six sectors: 0 to 5)
Lower half (four sectors: 0 to 3)
(1)
Unprotected area
(eight sectors: 0 to 7)
M25PE40