Microchip Technology 24LC014T-E/MNY

Overview

24LC014T-E/MNY from Microchip Technology Inc. is a 1 Kbit I²C-compatible serial EEPROM organized as 128 × 8-bit memory, operating from 2.5V to 5.5V with 400 kHz clock support and hardware write protection via the WP pin. It delivers 1 mA typical active current, 1 µA typical standby current, and supports up to eight devices on a single bus using A0–A2 address inputs. It is used in embedded systems for storing calibration data, configuration settings, and firmware parameters.

For engineers reviewing the 24LC014T-E/MNY datasheet, 24LC014T-E/MNY pinout, 24LC014T-E/MNY application, or 24LC014T-E/MNY equivalent, this page provides verified electrical specs, package mapping (8-lead TSSOP), I²C timing compliance (100/400 kHz), endurance (1 million cycles), and real-world use context for industrial and automotive temperature-grade designs.

Technical Context

The 24LC014T-E/MNY implements a two-wire I²C interface with slave addressing (7-bit address prefix '1010' plus A2–A0), supports both byte and page writes (up to 16 bytes per page), and features an internal address pointer that auto-increments during sequential reads. Its write cycle is self-timed with ≤5 ms max duration and includes built-in auto-erase functionality.

Hardware write protection is controlled solely by the WP pin: tied to VSS enables writes; tied to VCC disables all writes while preserving read access. The device uses Schmitt-trigger inputs on SDA/SCL for noise immunity and meets I²C standard timing requirements across its full voltage and temperature range (−40°C to +125°C).

Key Specifications

Pinout & Package

24LC014T-E/MNY is packaged in an 8-lead TSSOP (Thin Shrink Small Outline Package) with 0.65 mm lead pitch, RoHS-compliant matte tin finish, and exposed pad option (not electrically connected in this variant). Pin numbering follows standard TSSOP orientation with pin 1 marked by laser dot.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 24LC014T-E/MNY, the 24LC014-I/MNY offers lower cost but sacrifices automotive temperature compliance, while AT24C01D-SSHM-T adds 1.7V operation and second-source assurance at equivalent performance and layout compatibility.

Availability

24LC014T-E/MNY is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, medical device configuration, and smart energy metering requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 24LC014T-E/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 operations.

The 24LC014T-E/MNY belongs to Microchip's serial EEPROM product line, designed specifically for robust, low-power nonvolatile storage in automotive, industrial, and medical applications demanding extended temperature operation and high data integrity.

FAQ

What is the maximum I²C clock frequency supported by the 24LC014T-E/MNY?

The 24LC014T-E/MNY supports up to 400 kHz I²C clock frequency when VCC is ≥1.8V. At VCC < 1.8V, maximum clock rate drops to 100 kHz. This dual-speed capability ensures interoperability with both legacy and modern I²C masters while maintaining signal integrity across voltage ranges. The 24LC014T-E/MNY datasheet specifies timing parameters including THIGH, TLOW, and rise/fall times for both modes.

Does the 24LC014T-E/MNY require external pull-up resistors on SDA and SCL lines?

Yes, the 24LC014T-E/MNY requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. For 400 kHz operation, a 2 kΩ pull-up is recommended; for 100 kHz, 10 kΩ is typical. These resistors ensure proper logic high levels and meet I²C bus rise time specifications. The 24LC014T-E/MNY itself does not integrate internal pull-ups.

How does hardware write protection work on the 24LC014T-E/MNY?

Hardware write protection on the 24LC014T-E/MNY is controlled by the WP (Write-Protect) pin: when tied to VCC, all write operations (byte and page) are inhibited while read operations remain fully functional. When tied to VSS, writes are enabled. This pin-level control operates independently of I²C commands and provides fail-safe protection against firmware bugs or bus glitches. The 24LC014T-E/MNY does not support software write protection.

What is the endurance rating of the 24LC014T-E/MNY, and how is it validated?

The 24LC014T-E/MNY is rated for 1,000,000 erase/write cycles per memory location, validated through accelerated life testing at 25°C and VCC = 5.5V in block mode. This endurance is guaranteed by characterization-not 100% tested per unit-but reflects actual wear-leveling behavior under typical usage. The 24LC014T-E/MNY retains data for 200 years after the last write, making it suitable for infrequent but mission-critical updates.

Is the 24LC014T-E/MNY pin-compatible with other Microchip 1 Kbit I²C EEPROMs?

Yes, the 24LC014T-E/MNY in TSSOP package is pin-compatible with 24LC014-I/MNY (industrial grade) and 24AA014-I/MNY (1.7V–5.5V variant) in the same 8-lead TSSOP footprint. All share identical pin functions (A0–A2, VSS, SDA, SCL, WP, VCC), enabling drop-in replacement where voltage and temperature requirements align. However, the 24LC014T-E/MNY is not pin-compatible with SOT-23 variants due to different pin count and layout.