نظرة عامة على المنتج
The M95256-WMN6TP from ST is a 256Kbit SPI serial EEPROM organized as 32Kx8. 20MHz SPI clock. 1M cycle endurance with 50-year data retention. 1.8V-5.5V wide supply range. Status register with block protection. TSSOP-8 package. Tape and reel.
المواصفات الرئيسية
| النوع | 256 Kbit Serial EEPROM |
| الكثافة | 256 Kbit (32K x 8) |
| الواجهة | SPI (up to 20 MHz) |
| Write Time | 5 ms max |
| Endurance | 1M erase/write cycles |
| الاحتفاظ بالبيانات | 50 years |
| جهد الإمداد | 1.8V to 5.5V |
| Operating Temp | -40 to +85C |
| الحزمة | TSSOP-8 |
مبدأ العمل
The M95256 uses a 256Kbit EEPROM array accessed through an SPI interface (SI, SO, SCK, CS). Instructions include READ, WRITE, WREN (write enable), WRDI (write disable), and RDSR/WRSR (read/write status register). The status register configures block protection areas (BP0, BP1) that prevent writes to protected memory regions. Page write operation writes up to 64 bytes in a single command. The write-in-progress (WIP) bit in the status register allows polling for write completion. HOLD pin suspends communication without resetting the serial sequence.
التطبيقات
- Parameter storage
- Configuration data
- User settings
- Calibration data
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