Microchip Technology 24AA014T-I/MC

Overview

24AA014T-I/MC from Microchip Technology Inc. is a 1 Kbit I²C-compatible serial EEPROM organized as 128 × 8-bit memory, operating from 1.7V to 5.5V with hardware write protection, 400 kHz max clock speed, and 1 μA standby current. It supports up to eight devices on one bus via A0–A2 address pins and is used for nonvolatile configuration storage in embedded control systems.

For engineers reviewing the 24AA014T-I/MC datasheet, 24AA014T-I/MC pinout, 24AA014T-I/MC application, or 24AA014T-I/MC equivalent, key selection criteria include low-voltage operation (1.7V), industrial temperature range (−40°C to +85°C), TSSOP-8 package compatibility, and hardware WP pin-based array protection - all critical for battery-powered and space-constrained designs.

Technical Context

The 24AA014T-I/MC implements a two-wire I²C interface with Schmitt-trigger inputs on SDA/SCL for noise immunity, supports both byte and page writes (up to 16 bytes per page), and uses an internal address pointer that auto-increments during sequential reads. Its write cycle is self-timed with ≤5 ms duration and includes built-in auto-erase functionality.

Hardware write protection is controlled solely by the WP pin state (VSS = enabled, VCC = disabled); no software lock is required. The device features 1,000,000 erase/write cycles and >200 years of data retention at 25°C, validated across its full industrial temperature range.

Key Specifications

Pinout & Package

24AA014T-I/MC is packaged in an 8-lead TSSOP (Thin Shrink Small Outline Package) with 0.65 mm lead pitch, optimized for high-density PCB layouts and automated assembly. Pin 1 is marked by laser indentation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 24AA014T-I/MC, the 24LC014T-I/MC offers identical packaging and interface but excludes sub-2.5V support, while the AT24C01D-SSHM-T adds speed and voltage flexibility at the cost of hardware write protection - making 24AA014T-I/MC optimal for low-voltage, security-sensitive embedded storage.

Availability

24AA014T-I/MC is available at Aetrix Electronics and suitable for industrial control systems, medical diagnostics equipment, and consumer appliance manufacturing requiring stable component supply, long-lifecycle assurance, and RoHS-compliant sourcing.

Supply support for 24AA014T-I/MC 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, analog, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.

The 24AA014T-I/MC belongs to Microchip's serial EEPROM product line, engineered for robust, low-power nonvolatile data storage in space- and power-constrained embedded systems across industrial, automotive, and consumer markets.

FAQ

What is the minimum operating voltage for the 24AA014T-I/MC?

The 24AA014T-I/MC operates down to 1.7V, enabling direct use with 1.8V logic families and ultra-low-power microcontrollers. This specification is guaranteed across the full industrial temperature range (−40°C to +85°C) and distinguishes it from the 24LC014 variant, which requires ≥2.5V. The 24AA014T-I/MC maintains full I²C functionality-including 400 kHz clock support-at 1.7V.

Does the 24AA014T-I/MC support hardware write protection?

Yes, the 24AA014T-I/MC includes a dedicated Write-Protect (WP) pin that, when tied to VCC, disables all write operations to the entire 128-byte memory array while preserving read access. This hardware-level lock prevents accidental or malicious overwrites without requiring firmware intervention, making it ideal for storing immutable calibration data or security keys.

What package type is used for the 24AA014T-I/MC?

The 24AA014T-I/MC is supplied in an 8-lead TSSOP (Thin Shrink Small Outline Package) with 0.65 mm lead pitch and exposed pad option. This surface-mount package supports automated pick-and-place assembly and provides thermal and electrical performance advantages over PDIP or SOIC variants, especially in compact, thermally demanding applications.

How many devices can share the same I²C bus with the 24AA014T-I/MC?

Up to eight 24AA014T-I/MC devices can operate on a single I²C bus using unique combinations of the A0, A1, and A2 address pins. Each pin must be hardwired to either VSS or VCC to configure a distinct 3-bit chip address (000–111), allowing contiguous 8 Kbit memory expansion without additional address decoding logic.

What is the maximum write cycle time for the 24AA014T-I/MC?

The 24AA014T-I/MC has a maximum write cycle time of 5 ms for both byte and page writes, including internal auto-erase. This self-timed operation eliminates the need for external delay timers, and acknowledge polling can be used to detect completion. The 5 ms spec applies across the full VCC (1.7–5.5V) and temperature (−40°C to +85°C) ranges.