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Flash Memory | LE25U40CMD

Serial Flash Memory, 4 Mb (512K x 8)

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Overview

The LE25U40CMD is a SPI bus flash memory device with a 4M bit (512K x 8-bit) configuration that adds a high performance Dual output and Dual I/O function. It uses a single 2.5V power supply. While making the most of the features inherent to a serial flash memory device, the LE25U40CMD is housed in an 8-pin ultra-miniature package. All these features make this device ideally suited to storing program in applications such as portable information devices, which are required to have increasingly more compact dimensions. The LE25U40CMD also has a small sector erase capability which makes the device ideal for storing parameters or data that have fewer rewrite cycles and conventional EEPROMs cannot handle due to insufficient capacity.

  • SPI Bus Flash Memory Devices

  • Portable Information Devices

  • Read/write operations enabled by single 2.5V power supply :
    2.3 to 3.6V supply voltage range
  • Operating frequency : 40MHz
  • Highly reliable read/write
    Number of rewrite times : 100,000 times
    Small sector erase time : 40ms (typ), 150ms (max)
    Sector erase time : 80ms (typ), 250ms (max)
    Chip erase time : 250ms (typ), 2.0s (max)
    Page program time : 4.0ms/256 bytes (typ), 5.0ms/256 bytes (max)
  • Data retention period : 20 years
  • Temperature range : -40 to 85°C
  • Serial interface :
    SPI mode 0, mode 3 supported / Dual Output, Dual I/O supported
  • Sector size : 4K bytes/small sector, 64K bytes/sector
  • Small sector erase, sector erase, chip erase functions
  • Page program function (256 bytes / page)
  • Block protect function
  • Status functions : Ready/busy information, protect information

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LE25U40CMDTWG

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Last Shipments

CAD Model

Pb

A

H

P

SOIC-8

751BD

2

260

REEL

2000

N

4 Mb

512k x 8

11

2.3

3.6

50

6

-40

85

Price N/A

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Reliability Data

Die Related Summary Data

Device: LE25U40CMDTWG

Equivalent to wafer fab process: ONC18

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

ONC18

2

6465777234

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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