The SST25PF040CT-40V/NP is a 4-Mbit serial flash memory device featuring a four-wire, SPI-compatible interface. It operates with a single supply voltage from 2.3V to 3.6V and supports a high-speed clock frequency of up to 40 MHz. This specific model is rated for an industrial plus temperature range of -40°C to +105°C and comes in a compact 8-contact USON (2mm x 3mm) package. The memory is organized into uniform 4-Kbyte sectors and 64-Kbyte blocks, with a 256-byte page program capability. Manufactured with high-performance CMOS SuperFlash® technology, it offers superior reliability with 100,000 cycles of endurance and over 20 years of data retention, making it suitable for a wide range of applications requiring non-volatile storage with low power consumption and a small footprint.