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Renesas AT25XV021A-XMHV-B
- Part No.:
- AT25XV021A-XMHV-B
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT25XV021A-XMHV-B.pdf
- Description:
- IC FLASH 2MBIT SPI 70MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,220
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Product details
Overview
AT25XV021A-XMHV-B from Renesas Electronics is a 2-Mbit serial SPI Flash memory IC supporting Dual-I/O operation, 1.65 V–4.4 V single-supply operation, and 70 MHz maximum clock frequency with 6 ns clock-to-output timing. It features flexible erase architecture (256-byte page, 4/32/64-kByte blocks, full chip), hardware write protection via WP pin, and 128-byte OTP security register with factory-programmed unique ID. It is used in code shadowing, OTA firmware updates, and local data logging in battery-powered IoT edge nodes.
For engineers reviewing the AT25XV021A-XMHV-B datasheet, AT25XV021A-XMHV-B pinout, AT25XV021A-XMHV-B application, or AT25XV021A-XMHV-B equivalent, key selection criteria include SPI Mode 0/3 compatibility, ultra-low 200 nA deep power-down current, Dual-I/O read throughput, sector protection granularity, and industrial temperature range support.
Technical Context
The AT25XV021A-XMHV-B implements a standard SPI interface with dual-phase clocking (SCK rising edge for input latch, falling edge for output shift), supports both standard and Dual-Output Read commands (03h and 0Bh opcodes), and integrates active status interrupt capability to signal completion of self-timed program/erase operations without polling. Its control logic handles command decoding, address latching, and status register management internally.
Memory organization includes uniform 4-kByte sectors, 32-kByte and 64-kByte blocks, and 256-byte pages - enabling efficient code/data partitioning. The OTP security register comprises 64 bytes factory-programmed with a unique identifier and 64 bytes user-programmable, accessible only via dedicated Program/Read OTP commands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (256 kByte) - sufficient for compact firmware images and configuration storage in resource-constrained embedded systems. |
| Supply Voltage Range | 1.65 V to 4.4 V - enables direct interfacing with Li-ion, Li-poly, and 3.3 V/5 V system rails without level shifting. |
| Max Clock Frequency | 70 MHz - delivers up to 17.5 MB/s read throughput in Dual-I/O mode, accelerating boot and update sequences. |
| Page Program Time | 2 ms typical (256 bytes) - reduces firmware update latency and improves responsiveness in field-programmable devices. |
| Ultra-Deep Power-Down Current | 200 nA typical - extends battery life in always-on sensor nodes and wearable electronics during extended sleep intervals. |
| Data Retention | 20 years - ensures long-term reliability for medical, industrial, and infrastructure equipment with infrequent reprogramming. |
| Endurance | 100,000 program/erase cycles - supports frequent OTA updates and dynamic parameter logging over product lifetime. |
Pinout & Package
AT25XV021A-XMHV-B is packaged in an 8-lead SOIC (150-mil) package, compatible with standard surface-mount assembly processes and legacy PCB footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must transition high-to-low to initiate any command sequence and low-to-high to terminate it. |
| SCK | Serial Clock | Master-generated clock; rising edge latches SI input, falling edge clocks SO output - defines timing for all SPI transactions. |
| SI (I/O0) | Serial Input / Dual-I/O Data Line 0 | Primary command/address/data input; becomes I/O0 output during Dual-Output Read to deliver LSB of dual-bit data stream. |
| SO (I/O1) | Serial Output / Dual-I/O Data Line 1 | Standard read data output; remains I/O1 during Dual-Output Read to deliver MSB of dual-bit data stream on each SCK falling edge. |
| WP | Write Protect | Hardware lock control; low state enables sector protection via status register bits, preventing accidental writes/erases. |
| HOLD | Hold Control | Active-low pause signal; suspends ongoing SPI transfer without deselecting device or resetting internal state. |
| VCC | Power Supply | Single 1.65–4.4 V supply powering core logic, memory array, and I/O buffers - no auxiliary voltage required. |
| GND | Ground Reference | Common return path for VCC and all signal currents; critical for noise immunity and stable erase/program margins. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-I/O Read Support | Enables 2-bit-per-clock-cycle reads (0Bh opcode), doubling effective throughput vs. standard SPI without increasing clock frequency. |
| Flexible Erase Architecture | Supports 256-byte page, 4-kByte, 32-kByte, 64-kByte, and full-chip erase - minimizes wasted space when updating partial firmware or logging variable-length data. |
| OTP Security Register | 128-byte register with 64-byte factory-unique ID and 64-byte user-programmable space - enables secure device authentication and ESN binding. |
| Active Status Interrupt | Hardware interrupt output (via STATUS flag) signals completion of program/erase - eliminates polling overhead and enables MCU sleep during long operations. |
| Ultra-Low Power Modes | 200 nA ultra-deep power-down and 5 µA deep power-down - preserves battery charge in intermittently active edge devices for months or years. |
Applications
| Firmware Storage in Wearables | OTA Update Module for Smart Sensors |
|---|---|
Use Scenario: Storing bootloader and application firmware in compact, battery-powered wrist-worn health monitors. IC Role / Device Role / Timing Role: Non-volatile code storage with fast read access for cold-boot execution and verified OTA patch loading. Use Value: 70 MHz Dual-I/O read speed reduces boot time; 200 nA deep power-down extends 2-week battery life between charges. |
Use Scenario: Enabling secure, incremental firmware updates over BLE or LoRaWAN in distributed environmental sensor networks. IC Role / Device Role / Timing Role: Reliable, sector-protected storage for validated update payloads and rollback images. Use Value: Hardware WP pin + software sector locking prevents corruption during power loss; 100K endurance supports >5 years of quarterly updates. |
| Industrial PLC Configuration Memory | Medical Diagnostic Device Parameter Log |
Use Scenario: Retaining calibrated sensor offsets, I/O mapping, and safety thresholds in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Industrial-grade non-volatile storage with guaranteed 20-year data retention and -40°C to +85°C operation. Use Value: Uniform 4-kByte block erase allows atomic configuration updates without affecting operational firmware; RoHS-compliant packaging meets CE/UL requirements. |
Use Scenario: Logging patient vital sign timestamps, calibration events, and diagnostic error codes in portable ultrasound units. IC Role / Device Role / Timing Role: High-reliability data logger with deterministic write timing and built-in failure reporting. Use Value: Automatic erase/program failure detection ensures log integrity; 256-byte page erase enables efficient timestamped record appending without block-level fragmentation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q20EW | 2 Mbit density, 1.65–1.95 V supply only; no Ultra-Deep Power-Down mode (1 µA min); lacks OTP register. | Better suited for ultra-low-voltage microcontrollers but unsuitable for 3.3 V or mixed-rail systems requiring <200 nA sleep current. | Select AT25XV021A-XMHV-B when wide voltage range, ultra-low sleep current, or secure serialization are required. |
| Macronix MX25L2033F | 2 Mbit density, 2.7–3.6 V supply; supports Dual-I/O but no active interrupt; 1 µA deep power-down (vs. 200 nA). | Compatible for cost-sensitive consumer designs where industrial temp range and sub-µA sleep are not mandatory. | Choose AT25XV021A-XMHV-B for battery longevity, extended temperature compliance, and interrupt-driven efficiency. |
Compared with W25Q20EW and MX25L2033F, the AT25XV021A-XMHV-B uniquely combines 1.65–4.4 V operation, 200 nA ultra-deep power-down, hardware/software sector protection, and factory-programmed unique ID - making it optimal for long-life, multi-rail, and security-aware embedded systems.
Availability
AT25XV021A-XMHV-B is available at Aetrix Electronics and suitable for firmware storage in wearables, OTA update modules for smart sensors, and industrial PLC configuration memory requiring stable component supply across extended product lifecycles.
Supply support for AT25XV021A-XMHV-B 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, and IoT applications.
The AT25XV021A-XMHV-B belongs to Renesas' serial Flash memory product line, engineered specifically for ultra-low-power, secure, and voltage-flexible code and data storage in connected edge devices.
FAQ
What is the operating voltage range of the AT25XV021A-XMHV-B?
The AT25XV021A-XMHV-B operates across a single supply voltage range of 1.65 V to 4.4 V. This wide range allows direct integration with lithium-based batteries (2.5–4.2 V), 3.3 V logic systems, and legacy 5 V-compatible interfaces without external regulators or level shifters - simplifying power architecture in space-constrained designs.
Does the AT25XV021A-XMHV-B support Dual-I/O read mode, and what is its benefit?
Yes, the AT25XV021A-XMHV-B supports Dual-I/O read using the 0Bh opcode, delivering two bits per SCK falling edge. This doubles effective read throughput versus standard SPI (03h), achieving up to 17.5 MB/s at 70 MHz - significantly accelerating boot sequences, firmware verification, and data streaming in latency-sensitive applications.
How does the OTP security register in the AT25XV021A-XMHV-B function?
The AT25XV021A-XMHV-B includes a 128-byte OTP security register: 64 bytes factory-programmed with a unique device identifier and 64 bytes user-programmable. Access requires dedicated Program/Read OTP commands. Once programmed, OTP bytes cannot be altered - enabling secure device serialization, ESN binding, and locked key storage for cryptographic use cases.
What erase granularities does the AT25XV021A-XMHV-B support?
The AT25XV021A-XMHV-B supports five erase modes: 256-byte page erase, 4-kByte block erase, 32-kByte block erase, 64-kByte block erase, and full chip erase. This hierarchy enables precise memory management - for example, using page erase for logging and 4-kByte blocks for firmware segments - minimizing write amplification and maximizing endurance.
Is the AT25XV021A-XMHV-B qualified for industrial temperature operation?
Yes, the AT25XV021A-XMHV-B is specified for the full industrial temperature range of –40°C to +85°C. All electrical parameters - including program/erase timing, read access, and power-down current - are guaranteed across this range, ensuring reliable operation in harsh environments such as factory automation, outdoor sensors, and transportation systems.
AT25XV021A-XMHV-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 2Mbit
- Memory Organization:
- 256K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 70 MHz
- Write Cycle Time - Word, Page:
- 8µs, 2.5ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 4.4V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT25XV021A-XMHV-B FAQ
1.How can I place an order for AT25XV021A-XMHV-B through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XV021A-XMHV-B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AT25XV021A-XMHV-B reliable?
The price and inventory of AT25XV021A-XMHV-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25XV021A-XMHV-B is usually 5 days.
3.What payment methods are accepted for AT25XV021A-XMHV-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XV021A-XMHV-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XV021A-XMHV-B?
AT25XV021A-XMHV-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XV021A-XMHV-B order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AT25XV021A-XMHV-B?
For technical support, including AT25XV021A-XMHV-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XV021A-XMHV-B requirements.
6.How does Aetrix verify that AT25XV021A-XMHV-B is sourced from the original manufacturer or authorized distributors?
All AT25XV021A-XMHV-B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AT25XV021A-XMHV-B meets industry standards.
7.What is the process for return or replacement of AT25XV021A-XMHV-B?
All AT25XV021A-XMHV-B units undergo pre-shipment inspection (PSI). If there is an issue with AT25XV021A-XMHV-B, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AT25XV021A-XMHV-B part is unused and in its original packaging.
Return procedure for AT25XV021A-XMHV-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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