n25q256 Numonyx, n25q256 Datasheet - Page 55

• Manufacturer Part Number: n25q256
• Description: 256-mbit 3 V, Multiple I/o, 4-kbyte Subsector Erase, Xip Enabled, Serial Flash Memory With 108 Mhz Spi Bus Interface
• Manufacturer: Numonyx

N25Q256 - 3 V
8
HOLD
W/V
DQ0
DQ1
PP
C
S
Memory organization
The memory is organized as:
Each page can be individually programmed: bits are programmed from 1 to 0. The device is
Subsector eraseble, Sector eraseble or Bulk Erasable but not Page Erasable: bits are
erased from 0 to 1.
Figure 17. Block diagram
33,554,432 bytes (8 bits each)
512 sectors (64 Kbytes each)
8,192 subsectors (4 Kbytes each)
131,1072 pages (256 bytes each)
64 OTP bytes located outside the main memory array
Address register
Control logic
and counter
0000000h
I/O shift register
256 bytes (page size)
High voltage
generator
Micron Technology, Inc., reserves the right to change products or specifications without notice.
X decoder
data buffer
256 byte
01FFFFFFh
00000FFh
64 OTP bytes
©2010 Micron Technology, Inc. All rights reserved.
register
Status
Memory organization
AI13722b
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