AT49BV322DT-70TU-T

Memory IC Overview

The AT49BV322DT-70TU-T is a 32-megabit (2M x 16 or 4M x 8) 3-volt Flash memory manufactured by Microchip Technology. It features a 70 ns access time and operates on a single voltage supply ranging from 2.65V to 3.6V. The device is housed in a 48-lead Thin Shrink Small Outline Package (TSOP). It supports sector erase architecture with individual write lockout capabilities for enhanced data protection.

Memory IC Feature Summary

• Supports suspend/resume operations for both erase and program cycles, allowing read/write access to other sectors during active operations.
• Includes hardware data protection mechanisms such as VPP pin control, sector lockdown, and a 128-bit protection register.
• Provides multiple end-of-operation detection methods including Data Polling, Toggle Bit, and Ready/Busy status signals.
• Compatible with Common Flash Interface (CFI) standards for system software identification and configuration.

Memory IC Applications

• In-system programming of embedded firmware
• Storage of boot code with sector lockdown protection
• Data logging applications requiring high endurance

Memory IC Procurement Notes

Verify the specific suffix 'T' corresponds to tape-and-reel packaging if required by assembly equipment. Confirm the 'D' designation aligns with industrial temperature range specifications. Ensure the TSOP-48 footprint matches the target PCB design. Cross-reference the manufacturer part number with official Microchip documentation to confirm current production status and lead times.

Memory IC Selection Notes

Select this component when a 32Mb capacity with 70 ns speed is required. Choose the TSOP package for surface-mount applications needing a low-profile form factor. Consider the VPP pin functionality if hardware-level write protection is necessary. Verify that the 2.65V to 3.6V operating voltage range matches the system power supply constraints.

Memory IC Part Context

This device belongs to the AT49BV series of 3-volt Flash memories. It shares architectural similarities with other parts in the family but offers specific density and speed characteristics. The TSOP variant provides a compact solution compared to BGA options while maintaining parallel interface compatibility.

Memory IC Replacement Considerations

Check for AT49BV322AT-70CI for CBGA package alternatives. Verify AT49BV322D-70TU for identical electrical specs without reel packaging. Consult Microchip for newer design-in replacements if this part is obsolete.