AT45DB041A-TC

Memory IC Overview

The AT45DB041A-TC is a 4-Mbit serial Flash memory device manufactured by Microchip Technology. It features an SPI-compatible interface and operates within a voltage range of 2.7V to 3.6V. The memory architecture consists of 2048 pages, each containing 264 bytes. Two SRAM data buffers of 264 bytes each facilitate page-to-buffer transfers during reprogramming. The device supports maximum clock frequencies up to 20 MHz in standard operation modes.

Memory IC Feature Summary

• Supports single-cycle reprogramming via integrated SRAM data buffers
• Provides hardware-based data protection mechanisms
• Compatible with standard Serial Peripheral Interface (SPI) protocols

Memory IC Applications

• In-system reprogramming for embedded systems
• Non-volatile data storage in industrial control units
• Firmware storage for microcontroller applications

Memory IC Procurement Notes

Verify the specific suffix 'TC' against official Microchip documentation to confirm temperature range and package type accuracy. Confirm current availability status as older DataFlash models may be discontinued or superseded by newer series variants.

Memory IC Selection Notes

Select this component when a 4-Mbit capacity with 264-byte page size is required. Ensure the host system supports SPI Mode 0 or 3. Verify that the operating environment falls within the specified commercial or industrial temperature limits defined for the TC suffix.

Memory IC Part Context

This part belongs to the AT45DB series of DataFlash memories, originally developed by Atmel before its acquisition by Microchip Technology. The series is characterized by high-speed serial access and dual buffer architecture, distinguishing it from parallel NOR Flash devices.

Memory IC Replacement Considerations

Check for AT45DB041D or AT45DB041E equivalents if pinout compatibility is required. Verify electrical specifications and page sizes match exactly before substitution.