24FC04H-I/P

Memory IC Overview

The Microchip Technology 24FC04H-I/P is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) housed in an 8-lead PDIP package. It operates on a single supply ranging from 1.7V to 5.5V with a maximum clock frequency of 1 MHz. The device features a two-wire I2C compatible serial interface, hardware write-protect for the upper half-array (addresses 100h-1FFh), and supports page writes up to 16 bytes. It is rated for industrial temperatures (-40°C to +85°C) and includes Schmitt trigger inputs for noise suppression.

Memory IC Feature Summary

• Hardware write-protect capability for the upper half of the memory array
• Two-wire serial interface compatible with standard I2C protocols
• Low-power CMOS technology with standby current as low as 1 µA
• Schmitt trigger inputs and output slope control for noise immunity

Memory IC Applications

• Data storage in industrial control systems
• Configuration parameter retention in embedded devices
• Device identification and calibration data logging
• Non-volatile memory backup in consumer electronics

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and '/P' indicates the 8-lead Plastic Dual In-Line package. Confirm the specific revision level of the datasheet DS20002119C matches the production batch requirements. Ensure voltage levels align with the 1.7V to 5.5V operational specification.

Memory IC Selection Notes

Select this component when a 4-Kbit capacity with high-speed 1 MHz I2C communication is required. It is suitable for applications needing hardware write protection for critical data segments. Compare against the 24AA04H if lower speed or different voltage thresholds are acceptable, or the 24LC04BH if extended temperature ranges are not needed.

Memory IC Part Context

This part belongs to the 24XX04H family, which includes variants like the 24AA04H and 24LC04BH. These devices share similar architectural features but differ in operating voltage ranges and maximum clock frequencies. The 24FC04H specifically supports operation down to 1.7V and higher speeds compared to other family members.

Memory IC Replacement Considerations

Direct substitutes within the same package and electrical specifications include other 24FC04H variants with different temperature grades (e.g., 24FC04H-E/P). Cross-family replacements like the 24AA04H-I/P require verification of clock frequency compatibility at the target supply voltage.

Memory IC FAQ

How does the Write-Protect (WP) pin function?

When tied to VCC, the WP pin inhibits write operations to the upper half of the memory array (addresses 100h-1FFh). Tying it to VSS enables full read/write access to the entire memory.

What is the maximum page write size?

The device supports a page write buffer of up to 16 bytes. Writing more than 16 bytes causes the address counter to roll over, overwriting previous data in the current page.