M25P40-VMP3GXA データシートの表示（PDF） - Numonyx -> Micron

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M25P40-VMP3GXA

4 Mbit, low voltage, serial Flash memory with 75 MHz SPI bus interface

Numonyx -> Micron 

Description

1

Description

M25P40

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 M25P40 features high

performance instructions allowing clock frequency up to 75 MHz.(1)

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, Numonyx offers the M25P40 in RoHS

compliant packages, which are Lead-free. RoHS specifications are available at:

www.Numonyx.com.

Important:

This datasheet details the functionality of the M25P40 devices, based on the previous T7Y

process or based on the current T9HX process (available since August 2008). The new

device in T9HX is completely backward compatible with the old one in T7Y and it additionaly

features:

- improved max frequency (Fast Read) to 75 MHz in the standard Vcc range 2.7 V to

3.6 V, while the max frequency (Fast Read) in the extended Vcc range 2.3 V to 2.7 V is

40 MHz

- UID/CFD protection feature

Figure 1. Logic diagram

VCC

D

C

S

W

HOLD

Q

M25P40

VSS

AI04090

6/57

1. 75 MHz operation is available only on the VCC range 2.7 V - 3.6 V and for process technology T9HX devices,

identified by process identification digit "4" in the device marking and process letter "B" in the part number.

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