AT49BV160ST-70CU

Memory IC Overview

The AT49BV160ST-70CU is a 16-megabit (1M x 16) NOR Flash memory device manufactured by Microchip Technology. It operates on a single voltage supply ranging from 2.65V to 3.6V and features an asynchronous access time of 70 ns. The memory architecture consists of 39 sectors, including thirty-one 32K-word sectors and eight 4K-word sectors. It utilizes a 64-ball CBGA package with a 9x10 mm body size.

Memory IC Feature Summary

• Sector erase architecture with individual write lockout capabilities for specific memory regions
• Suspend/resume functionality allowing read and program operations during active erase or program cycles
• Secure lock and freeze feature enabling permanent and irreversible locking of selected memory regions
• Common Flash Interface (CFI) support for generic command set compatibility

Memory IC Applications

• In-system programming applications requiring single power supply operation
• Embedded systems needing top or bottom boot block configuration
• Industrial control units requiring sector-level data protection
• Firmware storage in devices utilizing CBGA surface mount packaging

Memory IC Procurement Notes

Verify the component status as discontinued before procurement planning. Confirm that the CBGA package dimensions match the target PCB footprint. Ensure design compatibility with the 2.65V to 3.6V operating range. Check for availability of equivalent lead-free RoHS compliant alternatives if current stock is insufficient.

Memory IC Selection Notes

Select this component when a 16-megabit capacity with 70 ns access speed is required. Choose the ST suffix variant specifically for bottom boot block sector organization. Consider the CBGA package constraints regarding thermal dissipation and assembly complexity. Evaluate the secure lock requirements against the irreversible nature of the freeze feature.

Memory IC Part Context

This part belongs to the AT49BV series of 3-volt only NOR Flash memories originally developed by Atmel Corporation. Following the acquisition of Atmel by Microchip Technology, these products continue under the Microchip portfolio. The device represents a legacy generation of parallel interface flash memory designed for embedded code storage.

Memory IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.