M25P40 4 Mbit, low voltage, serial Flash memory with 50 MHz SPI bus interface
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, Numonyx offers the M25P40 in ECOPACK® packages. ECOPACK® packages are Lead-free and RoHS compliant.
Features
4 Mbit of Flash memory
2.3 V to 3.6 V single supply voltage
SPI bus compatible serial interface
50 MHz clock rate (maximum)
Page Program (up to 256 bytes) in 1.5 ms
(typical)
Sector Erase (512 Kbit) in 1 s (typical)
Bulk Erase (4 Mbit) in 4.5 s (typical)
Deep Power-down mode 1 μA (typical)
Hardware Write Protection: protected area size
defined by three non-volatile bits (BP0, BP1
and BP2)
Electronic signatures
– JEDEC standard two-byte signature
(2013h)
– RES instruction, one-byte, signature (12h),
for backward compatibility
Packages
– ECOPACK® (RoHS compliant)
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