AT24C04-10TI-1.8

Memory IC Overview

The AT24C04-10TI-1.8 is a 4 Kbit (512 x 8) serial electrically erasable and programmable read-only memory (EEPROM) manufactured by Microchip Technology. It features an I²C-compatible two-wire serial interface with a maximum clock frequency of 400 kHz at standard voltage and 100 kHz at low voltage. The device operates within a supply voltage range of 1.8 V to 5.5 V, utilizing the -1.8 suffix designation. It is housed in an 8-lead Thin Shrink Small Outline Package (TSSOP) and supports industrial operating temperatures from -40°C to +85°C.

Memory IC Feature Summary

• Hardware data protection via a dedicated Write Protect pin that restricts write operations when connected to VCC.
• Support for partial page writes allowing flexible data modification without overwriting adjacent memory locations.
• Integrated noise suppression using Schmitt triggers and filtered inputs on all serial communication lines.

Memory IC Applications

• Industrial control systems requiring non-volatile storage for configuration parameters.
• Commercial applications needing low-power data retention for device calibration values.
• Embedded systems storing user settings and operational history.

Memory IC Procurement Notes

Verify the specific ordering code AT24C04-10TI-1.8 against current manufacturer documentation to confirm availability and exact electrical specifications. Ensure the procurement channel provides genuine components with traceable manufacturing origins. Confirm package integrity and compliance with relevant environmental standards prior to integration into production designs.

Memory IC Selection Notes

Select this component when a 4 Kbit EEPROM capacity is required alongside a compact TSSOP footprint. The -1.8 suffix indicates support for a minimum supply voltage of 1.8 V, suitable for low-voltage logic interfaces. Verify that the system bus speed requirements align with the 100 kHz limit at lower voltages or the 400 kHz limit at higher voltages.

Memory IC Part Context

This part belongs to the AT24C01A/02/04/08/16 family of serial EEPROMs. These devices share common architectural features including the two-wire serial interface and self-timed write cycles. The family offers scalable storage capacities ranging from 1 Kbit to 16 Kbit, providing designers with consistent interface protocols across different memory sizes.

Memory IC Replacement Considerations

Compatible substitutes include AT24C04-10SI-1.8 and AT24C04-10PC-1.8, which offer identical electrical characteristics but utilize SOIC and PDIP packages respectively. Other variants within the AT24C04 series may be considered if package form factor differences are acceptable for the target application.

Memory IC FAQ

How does the Write Protect pin function?

Connecting the Write Protect (WP) pin to VCC enables hardware data protection, preventing any write operations to the memory array. Connecting it to GND allows normal read and write access.

What is the maximum clock frequency at 1.8V operation?

When operating at a supply voltage of 1.8 V, the maximum supported clock frequency is 100 kHz. Higher frequencies up to 400 kHz are supported only at higher supply voltages.