Overview
The LE25U40CMDTWG is a 4M bit (512K x 8-bit) SPI bus flash memory device manufactured by onsemi. This device is designed with high performance Dual output and Dual I/O functions, making it suitable for applications requiring compact dimensions and efficient data storage. It operates on a single 2.5V power supply, with a supply voltage range of 2.3 to 3.6V. The device is housed in an 8-pin ultra-miniature SOIC-8 package, which is ideal for portable information devices and other space-constrained applications.
Key Specifications
| Specification | Value |
|---|---|
| Capacity | 4M bit (512K x 8-bit) |
| Package Type | SOIC-8 |
| Supply Voltage | 2.3 to 3.6V |
| Operating Frequency | 40MHz |
| 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 |
Key Features
- High performance Dual output and Dual I/O functions
- Single 2.5V power supply with a supply voltage range of 2.3 to 3.6V
- Small sector erase, sector erase, and chip erase functions
- Page program function (256 bytes/page)
- Block protect function
- Status functions: Ready/busy information, protect information
- Highly reliable read/write operations
- Data retention period of 20 years
Applications
The LE25U40CMDTWG is ideally suited for storing programs and data in various applications, including:
- Portable information devices
- Devices requiring compact dimensions and efficient data storage
- Applications needing frequent parameter or data updates, where conventional EEPROMs may be insufficient due to capacity limitations
Q & A
- What is the capacity of the LE25U40CMDTWG?
The capacity is 4M bit (512K x 8-bit). - What is the package type of the LE25U40CMDTWG?
The package type is SOIC-8. - What is the operating frequency of the LE25U40CMDTWG?
The operating frequency is 40MHz. - How many times can the LE25U40CMDTWG be rewritten?
The device can be rewritten 100,000 times. - What is the data retention period of the LE25U40CMDTWG?
The data retention period is 20 years. - What are the supported serial interface modes?
The device supports SPI mode 0 and mode 3, as well as Dual Output and Dual I/O. - What are the sector sizes available?
The sector sizes are 4K bytes/small sector and 64K bytes/sector. - What are the erase times for small sector, sector, and chip?
The small sector erase time is 40ms (typ), 150ms (max); sector erase time is 80ms (typ), 250ms (max); and chip erase time is 250ms (typ), 2.0s (max). - What is the page program time?
The page program time is 4.0ms/256 bytes (typ), 5.0ms/256 bytes (max). - What is the temperature range for the LE25U40CMDTWG?
The temperature range is -40 to 85°C.
