Microchip Technology 24LC014HT-I/MNY

Overview

24LC014HT-I/MNY from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM with industrial temperature range (−40°C to +85°C), 2.5V–5.5V supply operation, and hardware write-protection for the upper half of memory (addresses 40h–7Fh). It supports up to 1 MHz clock frequency, features 16-byte page write buffer, and delivers ≤1 μA standby current and ≤400 μA active current - ideal for low-power embedded systems requiring nonvolatile parameter storage.

For engineers reviewing the 24LC014HT-I/MNY datasheet, 24LC014HT-I/MNY pinout, 24LC014HT-I/MNY application, or 24LC014HT-I/MNY equivalent, this device serves as a drop-in replacement for legacy 1 Kbit I²C EEPROMs in space-constrained, noise-sensitive, and battery-backed designs where half-array hardware write protection and extended voltage tolerance are required.

Technical Context

The 24LC014HT-I/MNY implements a standard two-wire I²C interface with Schmitt-trigger inputs and output slope control to suppress ground bounce and bus noise. Its internal address counter enables sequential, random, and current-address read modes, while the 16-byte page buffer allows efficient multi-byte writes without host intervention between bytes.

Hardware write protection is controlled solely by the WP pin state (tied to VCC for protection of addresses 40h–7Fh); no software lock or register configuration is involved. The device uses an internal high-voltage generator and auto-erase logic to complete self-timed byte or page write cycles within ≤5 ms, during which it does not acknowledge I²C traffic.

Key Specifications

Pinout & Package

24LC014HT-I/MNY is housed in an 8-pin MSOP package (3.0 mm × 3.0 mm, 0.65 mm pitch), optimized for compact PCB layouts and automated assembly. Pin functions are electrically identical across all 8-pin variants (PDIP, SOIC, TSSOP, TDFN, MSOP).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT24C01D-SSHM-T and BR24G01NUX-5TR, the 24LC014HT-I/MNY uniquely combines 1 MHz I²C speed, hardware-based half-array write protection, and MSOP packaging - delivering superior noise immunity, deterministic safety, and space efficiency for industrial and medical edge devices.

Availability

24LC014HT-I/MNY is available at Aetrix Electronics and suitable for smart metering, industrial PLCs, medical diagnostics, automotive body electronics, and battery-powered IoT endpoints requiring stable component supply and long-term lifecycle support.

Supply support for 24LC014HT-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 operations.

The 24LC014HT-I/MNY belongs to Microchip's serial EEPROM product line, engineered specifically for reliable, low-power, and noise-immune nonvolatile storage in industrial, medical, and automotive applications where data integrity and long-term retention are critical.

FAQ

What is the maximum I²C clock frequency supported by the 24LC014HT-I/MNY?

The 24LC014HT-I/MNY supports up to 1 MHz I²C clock frequency when operated within its specified VCC range of 2.5V to 5.5V. This capability is explicitly confirmed in the Device Selection Table and AC Characteristics section of the DS22077B datasheet. At lower voltages (<2.5V), the device is not rated for 1 MHz operation - use 400 kHz or 100 kHz modes as appropriate. The 24LC014HT-I/MNY achieves this speed through optimized internal timing and Schmitt-trigger input conditioning.

How does hardware write protection work on the 24LC014HT-I/MNY?

Hardware write protection on the 24LC014HT-I/MNY is controlled exclusively by the WP pin: when tied to VCC, writes to memory addresses 40h–7Fh (upper 64 bytes) are blocked at the silicon level, regardless of I²C command. Writes to addresses 00h–3Fh remain enabled. When WP is tied to VSS, full-array writes are permitted. This protection requires no firmware interaction and remains active even during power transitions - a key safety feature implemented in the 24LC014HT-I/MNY's physical design.

What package type is used for the 24LC014HT-I/MNY?

The 24LC014HT-I/MNY uses an 8-pin MSOP (Mini Small Outline Package) with 3.0 mm × 3.0 mm body size and 0.65 mm lead pitch. This is confirmed by the "MNY" suffix in the part number and the Package Marking Information table in DS22077B. The MSOP variant shares identical pinout and electrical behavior with PDIP, SOIC, TSSOP, and TDFN versions - enabling direct footprint interchangeability where board space permits.

Does the 24LC014HT-I/MNY support page write operations, and what is the buffer size?

Yes, the 24LC014HT-I/MNY supports page write operations with a 16-byte buffer, as documented in the Features list and Section 6.2 of DS22077B. Up to 16 consecutive bytes can be loaded into the on-chip buffer and written to memory with a single Stop condition. This reduces I²C transaction overhead by up to 16× compared to byte writes and is especially valuable for updating configuration blocks or logging sequences in the 24LC014HT-I/MNY's 128-byte array.

What is the endurance and data retention specification for the 24LC014HT-I/MNY?

The 24LC014HT-I/MNY guarantees 1 million erase/write cycles and minimum data retention of 200 years at 25°C, as stated in the Features section and Table 1-2 (Note 4) of DS22077B. These values are characterized - not tested per unit - but ensured through process qualification and accelerated life testing. Real-world retention may extend beyond 200 years at lower ambient temperatures, and endurance remains valid across the full industrial temperature range (−40°C to +85°C) for the 24LC014HT-I/MNY.