AT49BV161T-70TI

Memory IC Overview

The AT49BV161T-70TI is a 16-megabit (1M x 16/2M 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 3.3V. The device is organized into 39 sectors, comprising thirty-one 32K Word sectors and eight 4K Word sectors, each with individual write lockout capabilities. It supports asynchronous parallel interface operations including sector erase, fast word programming, and suspend/resume functions. The component is housed in a 48-lead TSOP package.

Memory IC Feature Summary

• Sector Erase Architecture with individual write lockout for thirty-one 32K Word sectors and eight 4K Word sectors
• Erase Suspend and Program Suspend features allowing interruption of operations to read or program other sectors
• Hardware data protection via VPP pin for accelerated operations and sector lockdown support
• Multiple end-of-operation detection methods including Data Polling, Toggle Bit, Ready/Busy output, and status bits

Memory IC Applications

• In-system programming applications requiring single voltage operation
• Storage of secure boot code using sector lockdown features
• Embedded systems utilizing parallel NOR flash interfaces
• Applications requiring hardware data protection mechanisms

Memory IC Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature range. Confirm that the 'T' suffix corresponds to the tape and reel packaging format as specified in the datasheet. Ensure compatibility with the required voltage levels and interface timing specifications before procurement.

Memory IC Selection Notes

Select this component for designs requiring a 16-megabit capacity with a 70 ns access speed. It is suitable for systems needing flexible sector-based erasure and hardware-level write protection. Consider the 48-lead TSOP package constraints and the requirement for a dedicated VPP pin if accelerated programming is necessary. Verify power supply stability within the 2.65V to 3.3V range.

Memory IC Part Context

This part belongs to the AT49BV/LV16X(T) family of 3-volt Flash memories. It shares architectural similarities with the AT49BV160T but differs in pin configuration to support byte-mode selection via the BYTE pin. The family is designed for low-power applications and offers top or bottom boot block configurations. It is manufactured under the Microchip Technology brand following the acquisition of Atmel.

Memory IC Replacement Considerations

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