LE25U40CMD CMOS LSI www.onsemi.com 4M-bit (512K x 8) Serial Flash Memory Overview The LE25U40CMD is a SPI bus flash memory device with a 4M bit (512K 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 SOIC 8, 150mils rewrite cycles and conventional EEPROMs cannot handle due to insufficient capacity. Features Read/write operations enabled by single 2.5V power supply : 2.3 to 3.6V supply voltage range Operating frequency : 40MHz Temperature range : 40 to 85C 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 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) Status functions : Ready/busy information, protect information Data retention period : 20 years Package : SOIC8 (150mil) * This product is licensed from Silicon Storage Technology, Inc. (USA). ORDERING INFORMATION See detailed ordering and shipping information on page 23 of this data sheet. Semiconductor Components Industries, LLC, 2015 1 Publication Order Number : February 2015 - Rev. 1 LE25U40CMD/D LE25U40CMD Package Dimensions unit : mm SOIC 8, 150 mils CASE 751BD-01 ISSUE O SYMBOL MIN NOM MAX A 1.35 1.75 A1 0.10 0.25 b 0.33 0.51 c 0.19 0.25 E1 E D 4.80 5.00 E 5.80 6.20 E1 3.80 4.00 e 1.27 BSC h 0.25 0.50 L 0.40 1.27 PIN 1 0 8 IDENTIFICATION TOP VIEW D h A1 A c e b L SIDE VIEW END VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MS-012. Figure 1. Pin Assignments CS 1 8 V DD HOLD SO/SIO1 2 7 WP 3 6 SCK V 4 5 SI/SIO0 SS Top view www.onsemi.com 2