LE25S40QE: Serial Flash Memory, 4 Mb (512K x 8)

The LE25S40QE is a SPI bus flash memory device with a 4M bit (512K x 8-bit) configuration. It uses a single 1.8V power supply. While making the most of the features inherent to a serial flash memory device, the LE25S40QE 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 LE25S40QE 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.

Features
  • Read/write operations enabled by single 1.8V power supply :1.65 to 1.95V supply voltage range
  • Operating frequency : 40MHz
  • Temperature range : -40 to 85°C
  • Serial interface : SPI mode 0, mode 3 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
  • Highly reliable read/writeNumber of rewrite times : 100,000 timesSmall sector erase time : 40ms (typ), 150ms (max)Sector erase time : 80ms (typ), 250ms (max)Chip erase time : 300ms (typ), 3.0s (max)Page program time : 6.0ms/256 bytes (typ), 8.0ms/256 bytes (max)
  • Status functions : Ready/busy information, protect information
  • Data retention period : 20 years
Benefits
  • 1.8V low voltage operation
  • High data transfer rate
  • Fast erase and programming time
  • High reliability
Applications
  • Portable Information Devices
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Serial Flash Memory, 4M-bit (512K x 8)LE25S40QE/D (195kB)P0Nov, 2014
Package Drawings (1)
Document TitleDocument ID/SizeRevision
VDFN8 5x6, 1.27P / VSON8T (6x5)509AG (50.1kB)O
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LE25S40QE-AHActivePb-free Halide freeVDFN-8 / VSON-8T509AG3Tape and Reel2000$0.6528
Specifications
ProductDensityOrganizationtACC Max (ns)VCC Min (V)VCC Max (V)I(standby) Max (µA)Iact Max (mA)T Min (°C)T Max (°C)
LE25S40QE-AH4 Mb512k x 8111.651.95506-4085
Serial Flash Memory, 4M-bit (512K x 8) (195kB) LE25S40QE
VDFN8 5x6, 1.27P / VSON8T (6x5) LE25W81QE