Microchip Technology 24VL025T/MNY

Overview

24VL025T/MNY from Microchip Technology Inc. is a 2 Kbit I²C-compatible serial EEPROM optimized for ultra-low-voltage operation down to 1.5V, organized as 256 × 8-bit memory with 16-byte page write buffer and Schmitt-triggered SDA/SCL inputs. It delivers ≤400 μA active current and ≤1 μA standby current, supports 100 kHz (V_CC < 1.8V) or 400 kHz (V_CC ≥ 1.8V) clock rates, and is housed in a 6-lead SOT-23 package for space-constrained embedded systems requiring nonvolatile parameter storage.

For engineers reviewing the 24VL025T/MNY datasheet, 24VL025T/MNY pinout, 24VL025T/MNY application, or 24VL025T/MNY equivalent, key selection criteria include its 1.5–3.6V supply range, hardware write-protection absence (distinguishing it from 24VL024), SOT-23 footprint compatibility, and guaranteed >1 million erase/write cycles with >200-year data retention - critical for battery-powered IoT sensors and portable medical devices.

Technical Context

The 24VL025T/MNY implements a standard I²C slave interface with fixed 7-bit address prefix '1010' and user-configurable A0/A1 chip select bits (A2 unconnected in SOT-23), enabling up to four devices per bus. Its internal architecture includes a self-timed write cycle with auto-erase, on-chip address pointer for sequential reads, and noise-immune input filtering via Schmitt triggers and 50 ns spike suppression.

Unlike the 24VL024, the 24VL025 omits the WP pin - eliminating hardware write protection but simplifying board layout and reducing BOM count. The device uses a single-block memory array with no internal sectoring, and all write operations (byte or page) require explicit Stop condition initiation followed by up to 5 ms internal programming time.

Key Specifications

Pinout & Package

24VL025T/MNY is supplied in a Pb-free, RoHS-compliant 6-lead SOT-23 package (2.9 mm × 1.6 mm × 1.1 mm height), optimized for high-density PCB layouts and automated assembly. Pin 1 is laser-marked; no thermal pad or exposed die attach required.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT24C02D-SSHM-T and BR24G02FJ-WE2, the 24VL025T/MNY uniquely combines SOT-23 packaging, 1.5V operation, and WP-free simplicity - making it the only choice for ultra-compact, single-cell-battery designs where hardware write protection is unnecessary.

Availability

24VL025T/MNY is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical devices, industrial PLC modules, and consumer audio accessories requiring stable component supply across production lifecycles.

Supply support for 24VL025T/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 24VL024/24VL025 product line was designed specifically for ultra-low-power, low-voltage embedded systems - targeting battery-operated, space-constrained applications where traditional EEPROMs fail to operate reliably below 1.8V.

FAQ

What is the minimum operating voltage for the 24VL025T/MNY?

The 24VL025T/MNY operates down to 1.5V across its full temperature range (−20°C to +85°C), with guaranteed I²C timing compliance at 100 kHz below 1.8V and 400 kHz above 1.8V. This allows direct integration with aging primary batteries or low-quiescent LDOs without voltage boosting, unlike most 2 Kbit EEPROMs requiring ≥1.7V.

Does the 24VL025T/MNY have a write-protect (WP) pin?

No, the 24VL025T/MNY does not include a WP pin - this is a deliberate differentiation from the 24VL024. The WP pin is internally unconnected in the SOT-23 package variant. Write protection must be implemented in firmware via I²C command sequencing or external logic, simplifying PCB layout and reducing component count.

How many 24VL025T/MNY devices can be connected on a single I²C bus?

Up to four 24VL025T/MNY devices can share one I²C bus, using combinations of A0 and A1 pins (A2 is unconnected in SOT-23). Valid slave addresses are 0xA0, 0xA2, 0xA4, and 0xA6 (R/W bit included), enabling compact multi-device configurations without address conflicts.

What is the maximum write cycle time for the 24VL025T/MNY?

The 24VL025T/MNY specifies a maximum write cycle time of 5 ms for both byte and page writes. During this period, the device does not acknowledge I²C commands - a behavior leveraged by acknowledge polling to determine completion without fixed delays, optimizing bus utilization in time-critical firmware.

Is the 24VL025T/MNY compatible with standard I²C controllers?

Yes, the 24VL025T/MNY is fully compliant with the Philips I²C specification, supporting standard START/STOP conditions, 7-bit addressing ('1010' prefix + A1/A0), and ACK/NACK handshaking. It requires no special initialization or mode-setting commands and interoperates with any I²C master implementing standard timing budgets.