MT28F400B5SG8TET

**MT28F400B5SG-8TET** – Micron  
4 Mbit (512 KB × 8 / 256 KB × 16) Smart 5 Boot Block Flash Memory – 80 ns, TSOP-44

- Capacity: 4,194,304 bits  
- Organization:  
  – Byte mode: 512 KB × 8  
  – Word mode: 256 KB × 16  
- Sector Architecture: Smart 5 boot block (top or bottom parameter + boot)  
  – 8 × 8 KB parameter blocks  
  – 1 × 16 KB boot block  
  – 6 × 64 KB main blocks  
- Access Time: 80 ns max (-8T speed grade)  
- Supply Voltage: 5 V ±10 % (read & program/erase)  
- Program/Erase: 5 V only (no 12 V VPP required)  
- Buffered programming: 4 µs/byte typical  
- Endurance: 100,000 cycles per block  
- Data Retention: > 20 years  
- Interface: Standard parallel JEDEC  
- Package: 44-pin TSOP Type I (SG-8TET)  
- Temperature Range: –40 °C to +85 °C (industrial)