MT28F800B5SG-8 TET

Memory IC Overview

The MT28F800B5SG-8TET is an 8Mb (1 Meg x 8) parallel NOR Flash memory from Micron Technology, fabricated using a 0.18µm CMOS floating-gate process. It features Smart 5 technology, supporting 5V ±10% VCC and VPP programming. The device includes a hardware-protected 16KB boot block at the top address space, two 8KB parameter blocks, and eight main memory blocks. It offers an 80ns access time, 100,000 erase cycle endurance, and operates within an extended temperature range of -40°C to +85°C in a 44-pin SOP package.

Memory IC Feature Summary

• Hardware-protected boot block prevents accidental erasure or overwrite of critical firmware
• Smart 5 technology enables 5V-only application and production programming
• Internal State Machine automates write and erase algorithms for simplified control
• Deep power-down mode significantly reduces current consumption

Memory IC Applications

• Low-level system recovery code storage
• Core firmware storage requiring protection against unintentional updates
• System parameter configuration and diagnostic coding
• ROM-resident applications with in-system update capability

Memory IC Procurement Notes

Verify the specific suffixes for package type (SOP), timing speed (8), boot block position (T for Top), and operating temperature range (ET for Extended). Confirm RoHS compliance status as older revisions may not meet current standards. Check manufacturer documentation for end-of-life notifications or recommended replacement parts due to potential obsolescence.

Memory IC Selection Notes

Select this component when a hardware-protected boot block is required for secure firmware storage. Ensure the design supports 5V logic levels for both VCC and VPP. Consider the 44-pin SOP package constraints for PCB layout. Verify that the 80ns access time meets the system's performance requirements for parallel NOR access.

Memory IC Part Context

This part belongs to the Micron MT28F800B5 family of 8Mb Smart 5 Boot Block Flash memories. It shares architectural similarities with the MT28F008B5 but differs in organization and pin count. The family utilizes advanced 0.18µm process technology for improved density and reliability compared to earlier generations.

Memory IC Replacement Considerations

Consult Micron datasheets for direct pin-compatible replacements within the MT28F series. Verify if newer variants with lead-free packaging or updated RoHS compliance are available. Ensure any substitute maintains the same boot block protection mechanism and voltage specifications.