M25P40-VMP6TGSLASHX datasheet(6/53 Pages) STMICROELECTRONICS

부품명	M25P40-VMP6TG/X

상세설명	4 Mbit, low voltage, serial Flash memory with 50 MHz SPI bus interface

PDF	53 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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6 / 53 page

Description

M25P40

6/53

Description

The M25P40 is a 4 Mbit (512 K × 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 8 sectors, each containing 256 pages. Each page is 256 bytes

wide. Thus, the whole memory can be viewed as consisting of 2048 pages, or 524,288

bytes.

The whole memory can be erased using the Bulk Erase instruction, or a sector at a time,

using the Sector Erase instruction.

In order to meet environmental requirements, ST offers the M25P40 in ECOPACK®

packages. ECOPACK® packages are Lead-free and RoHS compliant.

ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.

Figure 1.

Logic diagram

Table 1.

Signal names

Signal name

Function

Direction

Serial Clock

Input

Serial Data input

Input

Serial Data output

Output

Chip Select

Input

Write Protect

Input

HOLD

Hold

Input

VCC

Supply voltage

VSS

Ground

AI04090

VCC

M25P40

HOLD

VSS

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