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M25P32 概述

The M25P32 is a 32 Mbit (4M x 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.

An enhanced Fast Program/Erase mode is available to speed up operations in factory environment. The device enters this mode whenever the VPPH voltage is applied to the Write Protect / Enhanced Program Supply Voltage pin (W / VPP).

The memory is organized as 64 sectors, each containing 256 pages. Each page is 256 bytes wide. Thus, the whole memory can be viewed as consisting of 16384 pages, or 4,194,304 bytes.

M25P32 特性

• 16 Mbit of Flash memory.
• Page Program (up to 256 bytes) in 0.64 ms(typical).
• Sector Erase (512 Kbit) in 0.6 s (typical).
• Bulk Erase (16 Mbit) in 13 s (typical).
• 2.7 V to 3.6 V single supply voltage.
• SPI bus compatible serial interface.
• 75 MHz Clock rate (maximum).
• Deep Power-down mode 1 μA (typical).
• Electronic signatures
  - JEDEC standard two-byte signature(2015h).
  - Unique ID code (UID) with 16 bytes readonly, available upon customer request.
  - RES instruction, one-byte, signature (14h), for backward compatibility .
• More than 100,000 Erase/Program cycles per sector.
• Hardware Write Protection: protected area size defined by three non-volatile bits (BP0, BP1 and BP2).
• More than 20 year data retention.
• Packages
  - RoHS compliant.
• Automotive Certified Parts Available.