AT29BV040A-25JC

Memory IC Overview

The AT29BV040A-25JC is a 3-volt-only in-system Flash Programmable and Erasable Read Only Memory (PEROM) manufactured by Microchip Technology. It provides 4 megabits of memory organized as 512K words by 8 bits. The device features a parallel interface with a 250 ns access time. It is housed in a 32-pin PLCC package measuring 13.97x11.43 mm.

Memory IC Feature Summary

• Supports in-system programming and erasing for flexible field updates
• Operates exclusively on a 3-volt power supply
• Utilizes a parallel interface architecture for data transfer

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Industrial control applications needing in-field firmware updates
• Consumer electronics utilizing 3V logic levels

Memory IC Procurement Notes

Verify the manufacturer origin, as sources may list N/A or conflicting brands like Actel or Micrel. Confirm the package type is 32-PLCC and check RoHS status, as some listings indicate lead content. Ensure the speed grade matches the 250 ns requirement for your specific timing constraints before ordering.

Memory IC Selection Notes

Select this component when a 3-volt only operation is required for flash memory integration. The 4Mbit capacity suits applications needing moderate code storage. The parallel interface dictates PCB layout considerations compared to serial alternatives. Verify compatibility with existing 3V logic levels in the target system design.

Memory IC Part Context

This part belongs to the AT29BV040A series of PEROM devices. It is often associated with Atmel Corporation origins before acquisition by Microchip Technology. Distributors may list it under various brand names including Micrel or generic labels, but the core specification remains consistent across these identifiers.

Memory IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult official Microchip cross-reference tools for compatible alternatives.