AT24C04AN-10SC

Memory IC Overview

The AT24C04AN-10SC is a 4K-bit (512 x 8) serial electrically erasable and programmable read-only memory (EEPROM) manufactured by Microchip Technology. It features an I²C-compatible 2-wire serial interface and operates within a supply voltage range of 4.5V to 5.5V. The device supports a maximum clock frequency of 400 kHz, offers 1 million write cycle endurance, and ensures data retention for up to 100 years. It is housed in an 8-pin JEDEC SOIC package.

Memory IC Feature Summary

• Hardware write protection via the WP pin allows locking the upper half of the array when connected to VCC.
• Supports bidirectional data transfer with start/stop conditions and acknowledge polling capabilities.
• Includes Schmitt triggers and noise suppression filters on inputs for signal integrity.

Memory IC Applications

• Industrial control systems requiring non-volatile parameter storage
• Commercial devices needing low power standby modes
• Embedded applications utilizing I²C bus communication

Memory IC Procurement Notes

Verify the specific ordering code suffix against the manufacturer's current datasheet to confirm package type and temperature range. Ensure compatibility with system voltage levels, as this variant specifies standard operation between 4.5V and 5.5V. Confirm lead times and availability directly with authorized distributors or the manufacturer.

Memory IC Selection Notes

Select this component for designs requiring 4K-bit capacity with hardware-level write protection. It is suitable for environments where standard 5V logic levels are used. Consider alternative voltage variants if the system operates below 4.5V. Verify that the 8-pin SOIC footprint matches the PCB layout requirements.

Memory IC Part Context

This part belongs to the AT24C02A/04A/08A family of serial EEPROMs. These devices share common interface protocols and reliability specifications but differ in memory organization and address pin configurations. The AT24C04A specifically utilizes A2 and A1 pins for addressing, allowing four devices on a single bus.

Memory IC Replacement Considerations

AT24C04AN-10SI

Memory IC FAQ

How does the Write Protect (WP) pin function?

When connected to VCC, the WP pin enables hardware data protection, locking the upper half of the memory array. When connected to GND, normal read/write operations are permitted.

What is the maximum clock frequency for this device?

The maximum clock frequency is 400 kHz when operating at the standard 5V supply voltage range.