M25PX64-VMF6P NUMONYX, M25PX64-VMF6P Datasheet - Page 29

• Manufacturer Part Number: M25PX64-VMF6P
• Description: 64MB NOR FLASH
• Manufacturer: NUMONYX

6.2
Write disable (WRDI)
The write disable (WRDI) instruction
The write disable (WRDI) instruction is entered by driving Chip Select (S) Low, sending the
instruction code, and then driving Chip Select (S) High.
The write enable latch (WEL) bit is reset under the following conditions:
Figure 10. Write disable (WRDI) instruction sequence
Power-up
Write disable (WRDI) instruction completion
Write status register (WRSR) instruction completion
Write to lock register (WRLR) instruction completion
Page program (PP) instruction completion
Dual input fast program (DIFP) instruction completion
Program OTP (POTP) instruction completion
Subsector erase (SSE) instruction completion
Sector erase (SE) instruction completion
Bulk erase (BE) instruction completion
S
C
DQ0
DQ1
(Figure
High Impedance
0
1
2
Instruction
10) resets the write enable latch (WEL) bit.
3
4
5
6
7
AI13732
29/70