M25PXX

2/7

SUMMARY DESCRIPTION

The M25Pxx is a 512Kbit to 32Mbit (2M x 8) Serial

Flash Memory, with advanced write protection

mechanisms, accessed by a high speed SPI-com-

patible bus.

The memory can be programmed 1 to 256 bytes at

a time, using the Page Program instruction.

The memory is organized as a number of sectors,

each containing 256 or 128 pages. Each page is

256 bytes wide.

The whole memory can be erased using the Bulk

Erase instruction, or a sector at a time, using the

Sector Erase instruction.

Figure 2. Logic Diagram

Table 2. Signal Names

Figure 3. SO8 and VDFPN Connections

Note: 1. There is an exposed die paddle on the underside of the

must not be allowed to be connected to any other voltage

or signal line on the PCB.

Figure 4. SO16 Connections

Note: 1. DU = Don’t Use

C

Serial Clock

D

Serial Data Input

Q

Serial Data Output

S

Chip Select

W

Write Protect

HOLD

Hold

Supply Voltage

Ground

AI10258

S

VCC

M25Pxx

HOLD

VSS

W

Q

C

D

1

AI10259

2

3

4

8

7

6

5

D

VSS

C

HOLD

Q

SVCC

W

M25Pxx

1

AI10260

2

3

4

16

15

14

13

DU

DU

DU

DU

VCC

HOLD

DU

DU

M25Pxx

5

6

7

8

12

11

10

9

W

Q

VSS

DU

DU

S

D

C