Microchip Technology 24VL014/MS

Overview

24VL014 from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM designed for ultra-low-voltage embedded systems. It operates from 1.5V to 3.6V, draws ≤400 μA active current and ≤1 μA standby current, supports 100 kHz/400 kHz I²C bus speeds, and features hardware write protection via the WP pin. It is commonly used in battery-powered sensor nodes and portable medical devices requiring nonvolatile configuration storage.

For engineers reviewing the 24VL014 datasheet, 24VL014 pinout, 24VL014 application, or 24VL014 equivalent, key selection considerations include its 1.5V minimum VCC, 16-byte page write buffer, Schmitt-triggered SDA/SCL inputs for noise immunity, cascading support for up to eight devices (four in SOT-23), and MSOP-8 package compatibility with space-constrained PCB layouts.

Technical Context

The 24VL014 implements a standard two-wire I²C slave interface with fixed 4-bit control code '1010', three user-configurable chip-select bits (A0–A2), and R/W bit-driven operation. Its internal architecture includes an address pointer, page buffer, HV generator for EEPROM programming, and threshold-based VCC detector that disables write logic below 1.0V.

It uses CMOS EEPROM technology with self-timed write cycles (≤5 ms), automatic erase-before-write, and on-chip slope control on outputs to suppress ground bounce. The device supports acknowledge polling during write cycles and enforces strict I²C timing windows-e.g., THD:STA ≥600 ns at VCC ≥1.8V-to ensure robust communication in noisy industrial environments.

Key Specifications

Pinout & Package

24VL014/MS is supplied in an 8-pin MSOP package (3.0 mm × 3.0 mm × 1.0 mm height, 0.65 mm pitch). Pin 1 is marked by laser dot; pin 1 location is top-left when notch faces upward.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT24C01D-SSHM-T and BR24G01NUX-5TR, the 24VL014 uniquely delivers hardware write protection via a dedicated pin in an MSOP-8 package with guaranteed 1.5V operation - critical for battery-backed systems where firmware may be unavailable during power transitions.

Availability

24VL014 is available at Aetrix Electronics and suitable for smart metering, wearable health devices, industrial I/O modules, and automotive body control units requiring stable component supply across multi-year production cycles.

Supply support for 24VL014 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 24VL014 belongs to Microchip's low-voltage serial EEPROM product line, engineered specifically for energy-constrained applications such as portable instrumentation, battery-powered sensors, and backup-power subsystems where 1.5V operation and ultra-low quiescent current are mandatory.

FAQ

What is the minimum operating voltage for the 24VL014?

The 24VL014 operates down to 1.5V, with full functionality including I²C communication, read/write operations, and hardware write protection. Below 1.8V, maximum clock frequency is limited to 100 kHz to maintain timing margins; the internal VCC detector disables write logic if supply drops below ~1.0V to prevent corruption.

Does the 24VL014/MS support page write, and what is the buffer size?

Yes, the 24VL014 supports page write with a 16-byte buffer. This allows up to 16 sequential bytes to be loaded into the buffer before initiating a single self-timed write cycle (≤5 ms). Page boundaries align to 16-byte offsets (00h–0Fh, 10h–1Fh, etc.), and crossing boundaries causes wraparound - software must enforce alignment.

How does hardware write protection work on the 24VL014?

The WP pin on the 24VL014 enables hardware write protection: when tied to VCC, the entire memory array (addresses 00h–7Fh) is locked against write and erase commands. When tied to VSS, full read/write access is permitted. Protection is active regardless of I²C command - no software involvement is required.

Can multiple 24VL014 devices share the same I²C bus?

Yes - up to eight 24VL014 devices can be cascaded on a single I²C bus using the A0, A1, and A2 address pins to generate unique 7-bit slave addresses (1010xxx0/1). In the MSOP-8 package, all three pins are available; in SOT-23, A2 is omitted, limiting cascading to four devices.

What package type is used for the 24VL014/MS variant?

The "/MS" suffix denotes the 8-pin MSOP (Mini Small Outline Package) variant of the 24VL014, measuring 3.0 mm × 3.0 mm × 1.0 mm with 0.65 mm lead pitch. It is RoHS-compliant, Pb-free, and compatible with standard reflow soldering profiles - distinct from PDIP, SOIC, TSSOP, TDFN, and SOT-23 variants.