M25PX64
Memory organization
5
Memory organization
The memory is organized as:
■
■
■
■
■
8 388 608 bytes (8 bits each)
2048 subsectors (4 Kbytes each)
128 sectors (64 Kbytes each)
32768 pages (256 bytes each)
64 OTP bytes located outside the main memory array.
Each page can be individually programmed (bits are programmed from ‘1’ to ‘0’). The device
is subsector, sector or bulk erasable (bits are erased from ‘0’ to ‘1’) but not page erasable.
Figure 7.
Block diagram
HOLD
VPP
S
High voltage
generator
Control logic
64 OTP bytes
C
DQ0
DQ1
I/O shift register
Status
register
Address register
and counter
256 byte
data buffer
7FFFFFh
00000h
000FFh
256 bytes (page size)
X decoder
AI13722b
19/66
NUMONYX [ NUMONYX B.V ]
