M25P05-A Numonyx, B.V., M25P05-A Datasheet - Page 6

• Manufacturer Part Number: M25P05-A
• Description: 512 Kbit, serial Flash memory, 50 MHz SPI bus interface
• Manufacturer: Numonyx, B.V.

Description
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Description
The M25P05-A is a 512-Kbit (64 Kbits ×8) serial flash memory, with advanced write
protection mechanisms, accessed by a high speed SPI-compatible bus.
The memory can be programmed 1 to 256 bytes at a time, using the page program
instruction.
The memory is organized as 2 sectors, each containing 128 pages. Each page is 256 bytes
wide. Thus, the whole memory can be viewed as consisting of 256 pages, or 65,536 bytes.
The whole memory can be erased using the bulk erase instruction, or a sector at a time,
using the sector erase instruction.
Figure 1.
Table 1.
C
D
Q
S
W
HOLD
V
V
CC
SS
Signal name
Logic diagram
Signal names
Serial Clock
Serial Data input
Serial Data output
Chip Select
Write Protect
Hold
Supply voltage
Ground
HOLD
W
D
C
S
V CC
V SS
M25P05-A
Function
Q
AI05757
Input
Input
Output
Input
Input
Input
Supply
Supply
Direction
M25P05-A