AT49BV8192AT-12TC

Memory IC Overview

The AT49BV8192AT-12TC is an 8-megabit (512K x 16) parallel Flash memory manufactured by Microchip Technology. It operates on a single 3V supply for read operations and supports 5V programming. The device features a fast read access time of 120 ns and low power dissipation, with active current of 25 mA and CMOS standby current below 50 µA. It utilizes advanced nonvolatile CMOS technology and includes internal erase/program control. The memory architecture consists of one boot block, two parameter blocks, and main memory arrays, supporting typical 10,000 write cycles.

Memory IC Feature Summary

• Supports in-system reprogramming with single 3V read and 5V program supplies
• Features hardware data protection and user-enabled boot block lockout
• Includes internal erase and program control timers for simplified interface

Memory IC Applications

• Firmware storage in embedded systems requiring code execution from flash
• Data logging applications needing non-volatile retention
• Industrial control systems utilizing parallel flash interfaces

Memory IC Procurement Notes

Verify the specific suffix 'AT' indicates top-boot configuration versus standard bottom-boot variants. Confirm package integrity for the 48-pin TSOP form factor. Ensure voltage levels match system requirements for 3V read and 5V programming operations. Check for RoHS compliance status as older Atmel designs may vary.

Memory IC Selection Notes

Select this component when a 512K x 16 organization is required for parallel data buses. Consider the 120 ns access speed for system timing constraints. Evaluate the boot block location if secure code execution from specific address ranges is critical. Compare power consumption against newer serial flash alternatives if space is limited.

Memory IC Part Context

This part belongs to the AT49BV/LV8192 family of 8-megabit Flash memories. It is designed for applications requiring high reliability and fast random access. The 'T' suffix typically denotes the top-boot sector arrangement, distinguishing it from bottom-boot versions. It represents a legacy solution compared to modern serial NOR options.

Memory IC Replacement Considerations

Direct substitutes include other AT49BV8192 variants with different boot block positions or access speeds. Cross-reference pinouts carefully as sector architectures differ between bottom and top boot versions. Newer Microchip serial NOR flashes may require interface adaptation.