AT49BV162AT-70TI

Memory IC Overview

The AT49BV162AT-70TI is a 16-megabit (1M x 16/2M x 8) NOR Flash memory manufactured by Microchip Technology. It operates on a single voltage supply ranging from 2.65V to 3.6V and features a fast read access time of 55 ns. The device supports asynchronous parallel interfaces with sector erase architecture, including thirty-one 32K Word sectors and eight 4K Word sectors. It offers low-power consumption with 12 mA active current and 13 µA standby current. The component includes hardware data protection via the VPP pin, sector lockdown capabilities, and a 128-bit protection register.

Memory IC Feature Summary

• Sector Erase Architecture with individual write lockout for secure code retention
• Erase Suspend and Program Suspend features allowing interruption for reading or programming other sectors
• Hardware Data Protection utilizing VPP pin inhibition and power-on delays
• Common Flash Interface (CFI) support for standardized system configuration queries

Memory IC Applications

• In-system programming applications requiring single voltage operation
• Storage of boot code with sector lockdown protection
• Embedded systems needing fast random access read operations
• Data storage requiring hardware-level write protection mechanisms

Memory IC Procurement Notes

Verify the specific suffix 'T' indicates the TSOP package option as documented in the datasheet. Confirm the manufacturer origin, noting Atmel technology integration under Microchip. Check for end-of-life status or obsolescence notices prior to procurement. Ensure compatibility with existing board layouts for the 48-lead TSOP form factor. Validate that the required voltage levels align with the 2.65V to 3.6V operational range specified.

Memory IC Selection Notes

Select this component when a 16-megabit capacity with 55 ns access speed is required. Choose the AT49BV162AT variant specifically for its TSOP packaging configuration. Consider the sector lockdown feature if permanent code protection is necessary without external components. Evaluate the suspend/resume functionality if background updates are needed during active reading. Ensure the design accommodates the VPP pin requirements for write protection control.

Memory IC Part Context

This part belongs to the AT49BV series of 3-volt only Flash memories. It shares architectural similarities with the AT49BV163A(T), differing primarily in organization and pin availability. The device utilizes standard microprocessor write timings and command sequences for operation. It is designed for applications requiring non-volatile storage with high endurance and flexible protection schemes.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: AT49BV162A-70TI, AT49BV162A-55TI.