SST25WF040BT-40I/NP

The SST25WF040BT-40I/NP is a 4MB Serial Flash Memory features a 4-wire, SPI-compatible interface that allows for which occupies less board space. SPI serial flash memory is manufactured with proprietary, high-performance CMOS SuperFlash technology. The split-gate cell design and thick-oxide tunneling injector attain better reliability and manufacturability compared with alternate approaches. This serial flash significantly improves performance and reliability, while lowering power consumption. The device writes with a single power supply of 1.65 to 1.95V. The total energy consumed is a function of the applied voltage, current and time of application. Since for any given voltage range, the SuperFlash technology uses less current to program and has a shorter erase time, the total energy consumed during any erase or program operation is less than alternative flash memory technologies.

• Serial interface architecture - SPI compatible - mode 0/3
• High speed clock frequency - up to 40MHz
• Dual input/output support
• Fast-read dual-output instruction
• Fast-read dual I/O instruction
• Superior reliability
• Endurance - 100000 cycles
• Greater than 20 years data retention
• Ultralow power consumption
• Flexible erase capability
• Page program mode - 256 bytes/page
• Fast erase and page-program
• End-of-write detection - software polling the BUSY bit in status register
• Hold pin - Suspend a serial sequence without deselecting the device
• Write protection - Enables/disables the lock-down function of the status register
• Software write protection - write protection through block-protection bits in status register