M25P32 View Datasheet(PDF) - Numonyx -> Micron

Part Name

Description

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M25P32

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

Numonyx -> Micron 

Signal description

M25P32

2.6

Write Protect/Enhanced Program supply voltage (W/VPP)

W/VPP is both a control input and a power supply pin. The two functions are selected by the

voltage range applied to the pin.

If the W/VPP input is kept in a low voltage range (0 V to VCC) the pin is seen as a control

input. This input signal is used to freeze the size of the area of memory that is protected

against program or erase instructions (as specified by the values in the BP2, BP1 and BP0

bits of the Status Register).

If VPP is in the range of VPPH it acts as an additional power supply pin. In this case VPP must

be stable until the Program/Erase algorithm is completed.

2.7

VCC supply voltage

VCC is the supply voltage.

2.8

VSS ground

VSS is the reference for the VCC supply voltage.

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