Microchip Technology 24LC024HT-I/MNY

Overview

24LC024HT-I/MNY 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 1 MHz clock support, 1 μA standby current, and hardware write protection for the upper half-array (80h–FFh). It serves as nonvolatile configuration storage in embedded microcontroller systems requiring low-power, noise-immune bus interfacing.

For engineers reviewing the 24LC024HT-I/MNY datasheet, 24LC024HT-I/MNY pinout, 24LC024HT-I/MNY application, or 24LC024HT-I/MNY equivalent, key selection criteria include its 1 MHz I²C speed at VCC ≥ 2.5V, TSSOP-8 package with 3.0 mm × 4.4 mm footprint, half-array hardware write protection via WP pin, and guaranteed 1 million erase/write cycles with >200-year data retention.

Technical Context

The 24LC024HT-I/MNY implements a two-wire I²C interface with Schmitt-trigger inputs on SDA and SCL for robust noise immunity, plus output slope control to suppress ground bounce. Its internal address counter enables sequential reads across the full 256-byte memory space with automatic rollover from FFh to 00h.

It supports byte and page write operations (up to 16 bytes per page), with self-timed internal write cycles completing in ≤5 ms. Hardware write protection is activated when WP = VCC, locking addresses 80h–FFh; WP = VSS disables protection entirely.

Key Specifications

Pinout & Package

24LC024HT-I/MNY is housed in an 8-pin TSSOP package (3.0 mm × 4.4 mm, 0.65 mm pitch) with exposed pad for thermal enhancement and RoHS-compliant matte tin finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 24LC024HT-I/MNY, the 24AA024HT-I/MNY extends voltage range downward but sacrifices maximum clock speed, while the AT24C02C-SSHM-T offers deeper page buffering at the cost of address compatibility - both require firmware validation for write-protection behavior and ACK polling timing.

Availability

24LC024HT-I/MNY is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, and medical diagnostic handhelds requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 24LC024HT-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 24LC024HT-I/MNY belongs to Microchip's serial EEPROM product line, engineered specifically for robust, low-power nonvolatile storage in space-constrained industrial and automotive applications where I²C simplicity and data integrity are paramount.

FAQ

What is the maximum I²C clock frequency supported by the 24LC024HT-I/MNY?

The 24LC024HT-I/MNY supports up to 1 MHz I²C clock frequency when VCC is between 2.5V and 5.5V. This is confirmed in the Device Selection Table and AC Characteristics section of DS22102A, where FCLK is specified as 1000 kHz under those conditions. Operation above 400 kHz requires VCC ≥ 2.5V; below that threshold, maximum speed drops to 400 kHz or 100 kHz depending on voltage level.

How does hardware write protection work on the 24LC024HT-I/MNY?

Hardware write protection on the 24LC024HT-I/MNY is controlled by the WP pin: when tied to VCC, it locks the upper half of memory (addresses 80h–FFh) against write operations while allowing full access to the lower half (00h–7Fh); when tied to VSS, write protection is disabled entirely. This behavior is explicitly defined in Section 2.4 and Figure 6-2 of DS22102A.

What package type is used for the 24LC024HT-I/MNY?

The 24LC024HT-I/MNY uses an 8-pin TSSOP package (3.0 mm × 4.4 mm body, 0.65 mm lead pitch), as indicated by the "/MNY" suffix in the part number and confirmed in Section 9.1 and Package Marking Information of DS22102A. Pinout matches standard 8-pin SOIC/TSSOP layout with A0–A2 on pins 1–3, VSS on pin 4, SDA on pin 5, SCL on pin 6, WP on pin 7, and VCC on pin 8.

Does the 24LC024HT-I/MNY support page write operations?

Yes, the 24LC024HT-I/MNY supports page write operations with a 16-byte buffer, as stated in the Features list and detailed in Section 6.2 of DS22102A. Page writes allow up to 16 bytes to be loaded into the on-chip buffer before initiating the internal write cycle, reducing I²C transaction count and improving efficiency over byte-write mode.

What is the endurance and data retention specification for the 24LC024HT-I/MNY?

The 24LC024HT-I/MNY is rated for 1 million erase/write cycles and greater than 200 years of data retention at 25°C, per Table 1-2 Note 4 and Features list in DS22102A. These values are characterized and ensured per Microchip's Total Endurance™ Model, not merely tested, and apply across the full industrial temperature range.