Microchip Technology 24VL024HT/MNY

Overview

24VL024HT/MNY from Microchip Technology Inc. is a 2 Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory, operating from 1.5V to 3.6V with 400 μA max active current and 1 μA max standby current. It features hardware write-protection for the upper half-array (80h–FFh), 16-byte page write buffer, and Schmitt-trigger inputs for noise immunity. It is used in low-power embedded systems requiring nonvolatile storage for calibration data, configuration settings, or firmware parameters.

For engineers reviewing the 24VL024HT/MNY datasheet, 24VL024HT/MNY pinout, 24VL024HT/MNY application, or 24VL024HT/MNY equivalent, key selection criteria include its 1.5V minimum supply voltage, half-array hardware write-protect capability, I²C bus compatibility up to 400 kHz (100 kHz below 1.8V), 16-byte page write buffer, and TDFN-8 (2×3 mm) package with exposed pad.

Technical Context

The 24VL024HT/MNY implements a standard I²C slave interface with fixed 4-bit control code (1010b) and user-configurable A0–A2 address bits enabling up to eight devices on one bus. Its internal address pointer supports current-address, random, and sequential read modes, while write operations use self-timed erase/write cycles with automatic page boundary handling.

It integrates Schmitt-trigger inputs on SDA/SCL with 0.05 VCC hysteresis and input filter spike suppression (≤50 ns), plus output slope control to suppress ground bounce. The WP pin enables hardware-level protection of addresses 80h–FFh when pulled high, independent of software lock mechanisms.

Key Specifications

Pinout & Package

24VL024HT/MNY is supplied in an 8-pin TDFN package (2 mm × 3 mm × 0.75 mm body height) with exposed thermal pad, designated MNY in Microchip's packaging system. This compact, surface-mount package supports high-density PCB layouts and improved thermal performance versus SOIC or PDIP.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 24AA024H-I/MNY and AT24C02C-SSHM-T, the 24VL024HT/MNY uniquely supports true 1.5V operation with ultra-low 1 μA standby current and hardware half-array write-protection - making it optimal for energy-sensitive, safety-critical, or miniaturized embedded systems where voltage headroom and data partitioning are design constraints.

Availability

24VL024HT/MNY is available at Aetrix Electronics and suitable for smart sensor calibration storage, industrial PLC configuration memory, medical device usage logs, and automotive body control module settings requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 24VL024HT/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, manufacturing, and sales operations.

The 24VL024HT/MNY belongs to Microchip's low-voltage serial EEPROM product line, designed specifically for battery-powered, energy-harvesting, and portable electronics where extended operation at 1.5V and minimal quiescent current are essential.

FAQ

What is the minimum operating voltage for the 24VL024HT/MNY?

The 24VL024HT/MNY operates down to 1.5V, with full I²C functionality supported at this voltage. At VCC < 1.8V, the maximum clock frequency is limited to 100 kHz to ensure timing compliance. This 1.5V capability allows direct integration with coin-cell batteries and ultra-low-power microcontrollers without voltage boosting or level-shifting circuitry - a key differentiator from standard 1.8V EEPROMs like the 24AA024H.

How does hardware write-protection work on the 24VL024HT/MNY?

The 24VL024HT/MNY uses the WP pin to enable hardware write-protection for the upper half of its memory array (addresses 80h–FFh). When WP is tied to VCC, writes to this 128-byte region are blocked regardless of software commands; writes to the lower half (00h–7Fh) remain enabled. This physical protection mechanism prevents accidental or malicious corruption of critical boot parameters or calibration data stored in the protected zone - a feature not present in standard 24C02-family EEPROMs.

What package type does the 24VL024HT/MNY use, and why is it significant?

The 24VL024HT/MNY uses the MNY package: an 8-pin TDFN (2 mm × 3 mm × 0.75 mm) with exposed thermal pad. This compact, surface-mount package enables high-density PCB layouts in space-constrained applications such as wearable sensors and automotive ECUs. Its low profile and thermal pad improve heat dissipation compared to SOIC or PDIP, supporting reliable operation in thermally demanding environments - a critical advantage over larger-footprint alternatives like the AT24C02C-SSHM-T.

Can multiple 24VL024HT/MNY devices share the same I²C bus?

Yes, up to eight 24VL024HT/MNY devices can be cascaded on a single I²C bus using the A0, A1, and A2 address pins. Each device is assigned a unique 3-bit chip address, enabling contiguous 16 Kbit memory expansion (eight × 2 Kbit) without additional buses or controllers. This scalability simplifies memory architecture in multi-sensor nodes or modular industrial controllers - unlike single-address EEPROMs that require separate I²C channels for expansion.

What is the endurance and data retention specification for the 24VL024HT/MNY?

The 24VL024HT/MNY guarantees more than 1 million erase/write cycles and greater than 200 years of data retention at +25°C. These specifications are validated through characterization (not 100% tested per unit) and ensure long-term reliability in applications requiring frequent field updates - such as medical device usage logging or firmware parameter tuning. The 200-year retention exceeds typical product lifecycles, eliminating concerns about data decay in unattended deployments.