Microchip Technology 24AA014T-I/MNY

Overview

24AA014T-I/MNY 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 rate, and 1 µA typical standby current. It supports up to eight devices on one bus via A0–A2 address pins and delivers 1 million erase/write cycles with >200 years data retention - used for configuration storage in industrial sensor nodes and embedded power management systems.

For engineers reviewing the 24AA014T-I/MNY datasheet, 24AA014T-I/MNY pinout, 24AA014T-I/MNY application, or 24AA014T-I/MNY equivalent, key selection criteria include low-voltage operation (1.7V), I²C timing compliance at both 100 kHz and 400 kHz, page-write buffer size (16 bytes), WP pin functionality, and MNY package compatibility with space-constrained PCB layouts.

Technical Context

The 24AA014T-I/MNY implements a standard two-wire I²C slave interface with fixed 7-bit device address prefix '1010', where A2–A0 determine the three LSBs of the slave address. Its internal address pointer auto-increments during sequential reads and wraps from 0x7F to 0x00, enabling full-array streaming without external address management.

Write operations are internally self-timed with a maximum 5 ms cycle time; acknowledge polling is supported to detect completion. Hardware write protection is implemented via the WP pin - tied high to inhibit all writes while permitting unrestricted reads - and is not available in SOT-23 variants but fully functional in the MNY (8-lead TSSOP) package.

Key Specifications

Pinout & Package

24AA014T-I/MNY is packaged in an 8-lead TSSOP (MNY), measuring 3.0 mm × 4.4 mm × 1.0 mm, with gull-wing leads and RoHS-compliant matte tin finish. 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 24LC014T-I/MNY and AT24C01D-SSHM-T, the 24AA014T-I/MNY uniquely combines 1.7V operation, hardware WP, and industrial temperature rating in the compact MNY package - making it optimal for space-constrained, low-voltage, safety-critical embedded storage.

Availability

24AA014T-I/MNY is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device parameter backup, embedded power management configuration, and IoT edge node identity storage requiring stable component supply across extended product lifecycles.

Supply support for 24AA014T-I/MNY 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 microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing infrastructure.

The 24AA014T-I/MNY belongs to Microchip's legacy serial EEPROM product line, engineered specifically for robust, low-power, I²C-based nonvolatile storage in industrial, medical, and communications equipment where reliability and long-term data integrity are critical.

FAQ

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

The 24AA014T-I/MNY operates down to 1.7V, enabling direct interface with 1.8V logic families and extending functionality during brown-out conditions. This is a key differentiator from the 24LC014 series, which requires a minimum of 2.5V. The 24AA014T-I/MNY maintains full I²C timing compliance and 400 kHz clock capability at 1.7V–1.8V, though clock frequency is reduced to 100 kHz below 1.8V.

Does the 24AA014T-I/MNY support page writes, and what is the buffer size?

Yes, the 24AA014T-I/MNY supports page writes with a 16-byte buffer. This allows up to 16 consecutive bytes to be loaded into the internal buffer and written to memory in a single self-timed cycle (≤5 ms). Page writes improve efficiency over byte writes by reducing I²C transaction overhead and minimizing bus arbitration delays - especially valuable in systems with frequent multi-byte configuration updates.

How does the WP pin function on the 24AA014T-I/MNY?

The WP (Write-Protect) pin on the 24AA014T-I/MNY is an active-high input: when tied to VCC, all write operations (byte and page) are inhibited while read operations remain fully functional. When tied to VSS, full read/write access is enabled. This hardware-level protection prevents accidental or malicious memory corruption during power transitions or firmware faults - a critical feature for safety-critical applications like medical devices and industrial controls.

What package type is used for the 24AA014T-I/MNY, and what are its dimensions?

The 24AA014T-I/MNY uses the 8-lead TSSOP package designated "MNY", with body dimensions of 3.0 mm × 4.4 mm × 1.0 mm and gull-wing lead pitch of 0.65 mm. It features RoHS-compliant matte tin plating and laser-marked pin 1 identification. This compact, surface-mount package supports high-density PCB layouts while maintaining thermal and mechanical robustness for reflow soldering in industrial assembly processes.

Is the 24AA014T-I/MNY compatible with standard I²C protocols and timing?

Yes, the 24AA014T-I/MNY is fully compliant with the standard Philips I²C protocol, supporting Start/Stop conditions, 7-bit addressing, ACK/NACK handshaking, and repeated Start sequences. It meets AC timing specifications for both 100 kHz (standard-mode) and 400 kHz (fast-mode) operation across its full 1.7V–5.5V VCC range, with verified rise/fall times, setup/hold requirements, and bus-free intervals as defined in DS21809G.