Microchip Technology 24VL025/MS

Overview

24VL025/MS from Microchip Technology Inc. is a 2 Kbit I²C-compatible serial EEPROM optimized for ultra-low-voltage operation down to 1.5 V, featuring 400 μA max active current, 1 μA max standby current, and 16-byte page write capability. It serves as nonvolatile configuration storage in battery-powered sensors, portable medical devices, and energy-harvesting systems where supply headroom is constrained.

For engineers reviewing the 24VL025/MS datasheet, 24VL025/MS pinout, 24VL025/MS application, or 24VL025/MS equivalent, this device delivers verified I²C timing compliance at 100 kHz (V_CC < 1.8 V) and 400 kHz (V_CC ≥ 1.8 V), Schmitt-trigger noise immunity on SDA/SCL, and guaranteed 1 million erase/write cycles with >200-year data retention - critical for long-life embedded deployments.

Technical Context

The 24VL025/MS implements a 2-wire I²C slave interface with hardware-addressable chip select (A0, A1, A2) enabling up to four devices on one bus in its 6-lead SOT-23 package. Its internal address pointer supports current-address, random, and sequential read modes, while the page buffer enables burst writes without host intervention between bytes.

Unlike the 24VL024, the 24VL025/MS omits the WP pin - eliminating hardware write protection but simplifying layout in applications where firmware-controlled locking suffices. All timing parameters (e.g., T_HD:STA, T_SU:DAT) are validated across 1.5–3.6 V and –20°C to +85°C, with Schmitt-trigger inputs and input filtering (T_SP ≤ 50 ns) ensuring robust operation on noisy PCBs.

Key Specifications

Pinout & Package

24VL025/MS is supplied in a 6-lead SOT-23 package (3.0 mm × 1.7 mm × 1.3 mm), optimized for space-constrained PCB layouts. The package lacks the WP pin present on the 24VL024, reducing pin count and simplifying routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT24C02C-SSHM-T and BR24G02FJ-WE2, the 24VL025/MS uniquely supports true 1.5 V operation and SOT-23 packaging - making it the only option for space- and voltage-constrained battery-powered edge nodes requiring guaranteed sub-1.8 V functionality.

Availability

24VL025/MS is available at Aetrix Electronics and suitable for smart wearables, industrial IoT edge nodes, and portable diagnostic equipment requiring stable component supply across extended product lifecycles.

Supply support for 24VL025/MS 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 family was designed specifically for ultra-low-voltage embedded systems - delivering reliable I²C EEPROM functionality where traditional 2.5 V or 3.3 V parts cannot operate.

FAQ

What is the minimum operating voltage for the 24VL025/MS?

The 24VL025/MS operates down to 1.5 V across its full temperature range (–20°C to +85°C), enabling direct use with single-cell batteries and energy-harvesting sources. This is confirmed in the Device Selection Table and Electrical Characteristics section of DS22130A, where V_CC min is explicitly specified as 1.5 V - a key differentiator from standard 2.5 V EEPROMs.

Does the 24VL025/MS have a write-protect (WP) pin?

No, the 24VL025/MS does not include a WP pin. As stated in the Pin Descriptions section (DS22130A, page 5), "WP pin is not internally connected on the 24VL025", and the SOT-23 pinout table confirms WP is omitted. Hardware write protection is exclusive to the 24VL024 variant; write security for the 24VL025/MS must be implemented in firmware.

How many 24VL025/MS devices can be connected to a single I²C bus?

Up to four 24VL025/MS devices can share one I²C bus. Per Section 2.3 and Figure 5-1 of DS22130A, the SOT-23 package lacks the A2 pin, limiting chip-select combinations to A1/A0 only (2² = 4 addresses). This is explicitly contrasted with the eight-device capability of the 8-pin variants that include A2.

What is the maximum I²C clock frequency supported by the 24VL025/MS?

The 24VL025/MS supports 400 kHz I²C clock frequency when V_CC ≥ 1.8 V, and 100 kHz when V_CC < 1.8 V. This dual-speed behavior is documented in the Device Selection Table (page 1) and AC Characteristics table (page 3, Param. No. 1), ensuring timing compliance across its entire operating voltage range.

Is the 24VL025/MS RoHS compliant and Pb-free?

Yes, the 24VL025/MS is Pb-free and RoHS compliant, as confirmed in the Features list on page 1 of DS22130A. The Packaging Information section (page 14) further specifies the Pb-free JEDEC matte tin (Sn) plating designation, and Microchip's official Pb-free conversion status is tracked at www.microchip.com/Pbfree.