Renesas AT25XV021A-MHV-Y

Overview

AT25XV021A-MHV-Y from Renesas Electronics is a 2-Mbit serial SPI Flash memory IC optimized for low-voltage, low-power embedded systems. It operates across 1.65 V–4.4 V, supports Dual-I/O read at up to 70 MHz, delivers 6 ns clock-to-output timing, and integrates hardware write protection, 128-byte OTP security register (64-byte factory-unique ID), and ultra-deep power-down (200 nA typical). It enables secure over-the-air firmware updates in battery-powered IoT edge nodes.

For engineers reviewing the AT25XV021A-MHV-Y datasheet, AT25XV021A-MHV-Y pinout, AT25XV021A-MHV-Y application, or AT25XV021A-MHV-Y equivalent, key selection criteria include its dual-I/O bandwidth efficiency, flexible erase granularity (256-byte page to 64-kByte block), industrial temperature support (–40°C to +85°C), and green RoHS-compliant 8-pad Ultra Thin DFN (2 × 3 × 0.6 mm) package.

Technical Context

The AT25XV021A-MHV-Y implements a standard SPI interface compliant with Modes 0 and 3, with SI (I/O0) and SO (I/O1) supporting Dual-Output Read for doubled data throughput per SCK cycle. Its internal architecture includes dedicated SRAM data buffer, Y/X decoders, and control logic enabling concurrent status polling during program/erase operations.

It features dual power-down states-Deep Power-Down (5 µA typical) and Ultra-Deep Power-Down (200 nA typical)-triggered via dedicated commands, and supports active status interrupt signaling to wake host MCUs upon operation completion. Sector protection is enforced via both software commands and hardware WP pin assertion.

Key Specifications

Pinout & Package

AT25XV021A-MHV-Y is packaged in an 8-pad Ultra Thin DFN (2 mm × 3 mm × 0.6 mm), RoHS-compliant, lead-free, halide-free package with wettable flanks for automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with W25Q20EW and MT25QL02GA, AT25XV021A-MHV-Y uniquely combines ultra-wide 1.65–4.4 V operation, 200 nA ultra-deep power-down, and factory-programmed unique ID in a 2×3 mm DFN - making it optimal for energy-harvested and multi-rail portable designs requiring secure, long-life non-volatile storage.

Availability

AT25XV021A-MHV-Y is available at Aetrix Electronics and suitable for wireless sensor nodes, medical disposables, industrial PLCs, and smart home hubs requiring stable component supply across extended product lifecycles.

Supply support for AT25XV021A-MHV-Y 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

Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, infrastructure, and IoT markets.

The AT25XV021A belongs to Renesas' low-voltage serial Flash memory product line, engineered specifically for energy-constrained, connected-edge applications demanding secure, reliable, and long-life non-volatile storage.

FAQ

What is the operating voltage range of the AT25XV021A-MHV-Y?

The AT25XV021A-MHV-Y operates across a single supply voltage range of 1.65 V to 4.4 V. This wide range allows direct compatibility with lithium-based batteries (including partially discharged cells), 1.8 V, 2.5 V, 3.3 V, and 4.2 V system rails without external regulators or level shifters - a key enabler for multi-rail and battery-operated designs.

Does the AT25XV021A-MHV-Y support Dual-I/O read operations?

Yes, the AT25XV021A-MHV-Y supports Dual-I/O read using the 0Bh opcode, enabling two bits of data (I/O0 and I/O1) to be clocked out on each falling edge of SCK. This doubles effective read throughput versus standard single-I/O mode while maintaining full SPI Mode 0/3 compatibility and requiring no additional pins beyond the standard SPI interface.

What package type is used for the AT25XV021A-MHV-Y?

The AT25XV021A-MHV-Y uses an 8-pad Ultra Thin DFN package measuring 2 mm × 3 mm × 0.6 mm. It is RoHS-compliant, halide-free, and features wettable flanks to support automated optical inspection (AOI) during PCB assembly - ideal for high-density, miniaturized consumer and medical devices.

How does the OTP security register function in the AT25XV021A-MHV-Y?

The AT25XV021A-MHV-Y includes a 128-byte one-time programmable (OTP) security register: 64 bytes are factory-programmed with a unique device identifier, and 64 bytes are user-programmable. Once written, OTP contents cannot be erased or rewritten - enabling secure device serialization, ESN storage, and locked key binding for disposable consumables and anti-counterfeiting schemes.

What is the minimum power consumption in ultra-deep power-down mode for the AT25XV021A-MHV-Y?

In ultra-deep power-down mode, the AT25XV021A-MHV-Y draws just 200 nA typical current (max 500 nA). This ultra-low quiescent current enables multi-year operation from small coin cells or energy-harvesting sources in always-on sensor nodes, asset trackers, and other battery-constrained edge devices.