Microchip Technology SST25WF040B-40E/SN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 4.53 | Dhs. 4.53 |
| 15+ | Dhs. 4.38 | Dhs. 65.70 |
| 25+ | Dhs. 4.28 | Dhs. 107.00 |
| 50+ | Dhs. 4.05 | Dhs. 202.50 |
| 100+ | Dhs. 3.57 | Dhs. 357.00 |
| N+ | Dhs. 0.71 | Price Inquiry |
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SST25WF040B-40E/SN - 4Mbit SPI Serial Flash Memory IC
The SST25WF040B-40E/SN from Microchip Technology is a high-performance 4Mbit SPI serial flash memory device designed for demanding industrial, automotive, and aerospace applications. This non-volatile flash memory IC features a 512K x 8 organization with a 40MHz clock frequency and operates at ultra-low voltage (1.65V to 1.95V), making it ideal for power-sensitive embedded systems.
Key Features & Benefits
- High-Speed Performance: 40MHz SPI interface enables rapid data access and transfer with support for standard SPI modes 0 and 3
- Low Power Operation: 1.65V-1.95V supply voltage reduces power consumption, with typical active current of 8mA and standby current as low as 1µA
- Extended Temperature Range: -40°C to 125°C operation for harsh industrial and automotive environments
- Compact Surface Mount Package: 8-SOIC (3.90mm width) saves board space in space-constrained designs
- Fast Write Cycles: 1ms page/word write cycle time with automatic erase-before-write
- Industrial-Grade Reliability: RoHS compliant, 100,000 program/erase cycles, and 100-year data retention
- Hardware & Software Protection: Block protection features and write-protect pin for data security
- Wide Compatibility: Standard SPI protocol compatible with most microcontrollers and processors
Memory Architecture & Performance
The SST25WF040B features a sophisticated memory architecture optimized for embedded applications:
- Memory Organization: 512K x 8-bit configuration provides flexible byte-level access
- Sector Structure: Organized into uniform 4KB sectors for efficient erase operations
- Page Programming: 256-byte page buffer enables fast sequential writes
- Read Performance: Sequential read speeds up to 40MHz for rapid data retrieval
- Command Set: Industry-standard SPI command set including Read, Program, Erase, and Status operations
Applications
This SPI flash memory IC is perfectly suited for:
- Embedded System Firmware Storage: Store bootloaders, application code, and configuration data
- BIOS and Boot Code Applications: Reliable non-volatile storage for system initialization
- Data Logging and Configuration Storage: Retain critical system parameters and operational data
- Industrial Control Systems: Program storage for PLCs, HMIs, and automation controllers
- Automotive Electronics: ECU firmware, infotainment systems, and ADAS applications
- Aerospace and Defense Systems: Mission-critical data storage in harsh environments
- IoT and Connected Devices: Firmware updates and local data caching
- Medical Equipment: Configuration and calibration data storage
Design Considerations
When integrating the SST25WF040B into your design:
- Ensure proper decoupling capacitors (0.1µF ceramic) close to VCC pins
- Use appropriate pull-up resistors on CS# and WP# pins
- Consider SPI bus speed and signal integrity for reliable operation
- Implement proper power sequencing to avoid data corruption
- Review the datasheet for timing diagrams and AC characteristics
Why Choose HQICKEY for Your Memory Components?
At HQICKEY, we specialize in providing authentic, high-reliability semiconductor components with comprehensive lifecycle support. Our engineering-focused approach ensures you receive genuine Microchip products backed by technical expertise and global distribution capabilities. We maintain rigorous quality control and offer:
- 100% authentic components from authorized sources
- Full traceability and documentation
- Technical support from experienced engineers
- Competitive pricing for volume orders
- Fast global shipping and logistics
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | SST25 |
| Packaging | Tube | |
| Memory Type | Non-Volatile |
| Memory Format | FLASH |
| Technology | FLASH |
| Memory Size | 4Mbit |
| Memory Organization | 512K x 8 |
| Memory Interface | SPI |
| Clock Frequency | 40 MHz |
| Write Cycle Time - Word, Page | 1ms |
| Access Time | - |
| Voltage - Supply | 1.65V ~ 1.95V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| ROHS |  |
SST25WF040B-40E/SN.pdf