Microchip Technology 24LC024T-I/SN

Overview

24LC024T-I/SN from Microchip Technology Inc. is a 2 Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory, operating from 2.5V to 5.5V with hardware write-protection via the WP pin. It supports up to 400 kHz clock frequency, features 16-byte page write buffer, and delivers ≤5 ms write cycle time. Used in industrial sensor calibration storage, embedded system configuration retention, and power-fail-safe parameter backup.

For engineers reviewing the 24LC024T-I/SN datasheet, 24LC024T-I/SN pinout, 24LC024T-I/SN application, or 24LC024T-I/SN equivalent, key selection criteria include VCC range (2.5–5.5V), hardware write-protect capability, I²C bus compatibility up to 400 kHz, industrial temperature rating (−40°C to +85°C), and SOIC-8 packaging with verified 8-pin pinout.

Technical Context

The 24LC024T-I/SN implements a standard two-wire I²C interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal address counter enables sequential reads across the full 256-byte memory space with automatic rollover from 0xFF to 0x00.

It uses on-chip high-voltage generation for EEPROM programming and includes a threshold detector that disables erase/write logic below 1.5V VCC. The device supports cascading up to eight units on one bus using A0–A2 address pins, with each unit occupying a unique 256-byte address block.

Key Specifications

Pinout & Package

24LC024T-I/SN is packaged in an 8-lead SOIC (3.90 mm) surface-mount package with industry-standard footprint and thermal profile.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial EEPROM applications.

Compared with 24LC024T-I/SN, the 24AA024T-I/SN extends voltage flexibility but sacrifices guaranteed 2.5V+ robustness, while the AT24C02D offers higher speed at the cost of hardware write-protection - making 24LC024T-I/SN optimal for industrial systems prioritizing fail-safe configuration integrity over raw speed or ultra-low-VCC operation.

Availability

24LC024T-I/SN is available at Aetrix Electronics and suitable for industrial sensor calibration, embedded system configuration, and power-fail safe logging requiring stable component supply across extended production lifecycles.

Supply support for 24LC024T-I/SN includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions, serving industrial, automotive, consumer, and communications markets with vertically integrated silicon and development tools.

The 24LC024T-I/SN belongs to Microchip's serial EEPROM product line, designed specifically for reliable, low-power, I²C-based nonvolatile data storage in space-constrained embedded systems operating across industrial temperature ranges.

FAQ

What is the maximum I²C clock frequency supported by the 24LC024T-I/SN?

The 24LC024T-I/SN supports up to 400 kHz I²C clock frequency under standard operating conditions (VCC ≥ 2.5V). At VCC < 2.5V, maximum clock drops to 100 kHz - however, this condition does not apply to the 24LC024T-I/SN since its specified VCC range starts at 2.5V. This fast-mode capability reduces write latency compared to legacy 100 kHz EEPROMs.

Does the 24LC024T-I/SN have hardware write-protection, and how is it implemented?

Yes, the 24LC024T-I/SN includes a dedicated hardware write-protect (WP) pin. When WP is tied to VCC, the entire 256-byte memory array is locked against write or erase operations - including page writes, byte writes, and sequential writes. This feature operates independently of software control and remains active during power transitions, making 24LC024T-I/SN suitable for safety-critical configuration storage.

What package type is used for the 24LC024T-I/SN, and is it RoHS-compliant?

The 24LC024T-I/SN uses an 8-lead SOIC package with 3.90 mm body width (standard JEDEC MS-012AC). It is Pb-free and RoHS-compliant, with matte tin (Sn) lead finish. The "T" in the part number denotes tape-and-reel packaging, and "I/SN" confirms industrial temperature grade and SOIC-8 package per Microchip's marking convention.

How many devices can be connected on the same I²C bus using the 24LC024T-I/SN?

Up to eight 24LC024T-I/SN devices can be connected on a single I²C bus using the three hardware address pins (A0, A1, A2). Each device is assigned a unique 7-bit slave address in the format 1010xxxR/W, where xxx corresponds to the binary state of A2–A0. This enables contiguous 16 Kbit memory expansion without additional address decoding logic.

What is the write endurance and data retention specification for the 24LC024T-I/SN?

The 24LC024T-I/SN guarantees 1 million erase/write cycles per memory location and 200 years of data retention at +25°C ambient. These specifications are characterized and ensured per Microchip's Total Endurance™ Model, making 24LC024T-I/SN appropriate for applications requiring long-term reliability, such as industrial automation controllers and medical devices with regulatory data-logging requirements.