LE25S40QE中文资料Serial Flash Memory, 4 Mb (512K x 8)数据手册ONSEMI规格书

描述 Description

The LE25S40QE is a SPI bus flash memory device with a 4M bit (512K x 8-bit) configuration. It uses a single 1.8 V 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.

特性 Features

• Read/write operations enabled by single 1.8 V power supply :1.65 to 1.95 V supply voltage range
• 1.8 V low voltage operation
• Operating frequency : 40MHz
• High data transfer rate
• Temperature range : -40 to 85°C
• Fast erase and programming time
• Serial interface : SPI mode 0, mode 3 supported
• High reliability
• 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 : 40 ms (typ), 150 ms (max)Sector erase time : 80 ms (typ), 250 ms (max)Chip erase time : 300 ms (typ), 3.0 s (max)Page program time : 6.0 ms/256 bytes (typ), 8.0 ms/256 bytes (max)
• Status functions : Ready/busy information, protect information
• Data retention period : 20 years