Microchip Technology 24LC024T-I/MNY16KVAO

Overview

24LC024T-I/MNY16KVAO from Microchip Technology Inc. is a 2 Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory, operating from 2.5V to 5.5V with hardware write-protection (WP pin), 16-byte page write buffer, and industrial temperature range (–40°C to +85°C). It supports up to 400 kHz clock frequency, features Schmitt-trigger inputs for noise immunity, and is used in embedded system configuration storage, sensor calibration data retention, and firmware parameter backup.

For engineers reviewing the 24LC024T-I/MNY16KVAO datasheet, 24LC024T-I/MNY16KVAO pinout, 24LC024T-I/MNY16KVAO application, or 24LC024T-I/MNY16KVAO equivalent, key selection criteria include VCC voltage range compatibility (2.5–5.5V), WP-enabled hardware write protection, 16-byte page write capability, I²C bus timing compliance (400 kHz max), and MNY16KVAO package-specific footprint and thermal characteristics.

Technical Context

This device implements a two-wire I²C slave interface with fixed 7-bit address prefix '1010' and three programmable chip-select bits (A2/A1/A0), enabling cascading of up to eight devices on one bus. The internal address pointer auto-increments during sequential reads and wraps at 0xFF.

It integrates Schmitt-trigger inputs on SDA/SCL with 50 ns spike suppression and hysteresis (0.05×VCC), slope-controlled outputs to suppress ground bounce, and a VCC threshold detector disabling write logic below 1.5V. Write cycles are self-timed (≤5 ms) and support both byte and page modes.

Key Specifications

Pinout & Package

24LC024T-I/MNY16KVAO is packaged in an 8-lead DFN (2 mm × 3 mm, 0.5 mm pitch) with exposed pad, designated MNY16KVAO per Microchip's marking standard. Pin 1 is laser-marked; the exposed pad must be soldered to PCB ground for thermal and EMI performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 24LC024T-I/MNY16KVAO, the 24AA024T-I/MNY offers broader voltage flexibility but identical protection and packaging, while AT24C02D-SSHM-T reduces BOM count by omitting WP yet requires robust software safeguards to prevent unintended writes.

Availability

24LC024T-I/MNY16KVAO is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, medical infusion pumps, and smart energy meters requiring stable component supply across extended product lifecycles.

Supply support for 24LC024T-I/MNY16KVAO 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 devices, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.

The 24LCxx family delivers cost-optimized, high-reliability serial EEPROMs targeting industrial, automotive, and medical applications where data integrity, long-term retention, and hardware-level write security are mandatory.

FAQ

What is the function of the WP pin on the 24LC024T-I/MNY16KVAO?

The WP (Write-Protect) pin on the 24LC024T-I/MNY16KVAO is a hardware-level enable/disable control for all write operations. When tied to VCC, it locks the entire 2 Kbit memory array against writes; when tied to VSS, full write access is granted. This feature is absent on 24LC025 variants and is implemented independently of I²C commands - ensuring protection even during firmware faults or bus glitches.

Can the 24LC024T-I/MNY16KVAO operate at 1.8V?

No, the 24LC024T-I/MNY16KVAO requires a minimum VCC of 2.5V and is not specified for operation at 1.8V. Its electrical characteristics, including timing and write functionality, are only guaranteed within the 2.5V–5.5V range. For 1.8V systems, consider the pin-compatible 24AA024T-I/MNY, which supports 1.7V–5.5V operation.

How many devices can be connected on the same I²C bus using the 24LC024T-I/MNY16KVAO?

Up to eight 24LC024T-I/MNY16KVAO devices can be connected on a single I²C bus using the A2/A1/A0 address pins to generate unique 3-bit chip-select codes. Each device responds only to its assigned address (1010xxxR/W), enabling contiguous 16 Kbit expansion without additional address decoding logic.

What is the maximum page write size supported by the 24LC024T-I/MNY16KVAO?

The 24LC024T-I/MNY16KVAO supports a maximum page write size of 16 bytes. Writes crossing physical page boundaries (every 16-byte aligned block) wrap within the current page instead of advancing to the next, so firmware must enforce alignment. This buffer reduces I²C transaction count and accelerates bulk configuration updates compared to byte-wise writes.

Does the 24LC024T-I/MNY16KVAO require external pull-up resistors on SDA and SCL lines?

Yes, the 24LC024T-I/MNY16KVAO requires external pull-up resistors on both SDA and SCL lines because its I/O pins are open-drain. For 400 kHz operation, Microchip recommends 2 kΩ pull-ups to VCC; for 100 kHz, 10 kΩ is typical. Proper termination ensures signal integrity, meets rise-time specs (<300 ns), and prevents bus contention in multi-master environments.