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Renesas AT25XV021A-XMHV-T
- Part No.:
- AT25XV021A-XMHV-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT25XV021A-XMHV-T.pdf
- Description:
- IC FLASH 2MBIT SPI 70MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,806
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Product details
Overview
AT25XV021A-XMHV-T from Renesas Electronics is a 2-Mbit serial SPI Flash memory IC operating from 1.65 V to 4.4 V, supporting Dual-I/O read mode at up to 70 MHz, with 6 ns clock-to-output delay and hardware write protection via WP pin. It enables code shadowing, OTA firmware updates, and local data logging in battery-powered IoT edge nodes.
For engineers reviewing the AT25XV021A-XMHV-T datasheet, AT25XV021A-XMHV-T pinout, AT25XV021A-XMHV-T application, or AT25XV021A-XMHV-T equivalent, key selection criteria include ultra-deep power-down current (200 nA), flexible erase granularity (256-byte page to 64-kByte block), OTP security register (128 bytes), JEDEC-compliant ID read, and industrial temperature support (–40°C to +85°C).
Technical Context
The AT25XV021A-XMHV-T implements a standard SPI interface compliant with Modes 0 and 3, with dual-output read capability enabling two bits per SCK falling edge. Its internal architecture includes SRAM data buffer, Y/X decoders, and control logic managing autonomous program/erase cycles without external high-voltage supply.
It integrates hardware-based sector protection via WP pin and software-controlled locking, plus an active status interrupt for host sleep/wake coordination during long-duration operations. The device supports sequential programming mode and automatic erase/program failure reporting through status register polling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Mbit (256 kByte) organized as 32 k × 8; sufficient for boot code + configuration + telemetry logs in compact embedded systems. |
| Supply Voltage | 1.65 V – 4.4 V; compatible with single-cell Li-ion (3.0–4.2 V), LiFePO₄ (2.5–3.65 V), and 3.3 V/1.8 V logic rails without level shifting. |
| Max Clock Frequency | 70 MHz; enables fast read throughput up to 140 MB/s in Dual-I/O mode, reducing firmware load latency. |
| Page Program Time | 2 ms typical (256 bytes); allows rapid field updates of small firmware patches or parameter sets without system stall. |
| Erase Granularity | 256-byte page, 4/32/64-kByte uniform blocks, and full chip erase; optimizes wear leveling and minimizes data relocation overhead. |
| Ultra-Deep Power-Down | 200 nA typical; extends battery life in always-on sensor nodes by >10× versus standard standby (25 µA). |
| Endurance & Retention | 100,000 program/erase cycles and 20-year data retention; validated for mission-critical firmware storage in industrial deployments. |
Pinout & Package
AT25XV021A-XMHV-T is packaged in an 8-lead TSSOP (8X-TSSOP) measuring 4.4 mm × 3.0 mm × 1.2 mm, RoHS-compliant and halide-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must transition high→low to initiate command, low→high to terminate; deselects device and places SO in high-Z. |
| 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 0 | Command/address/data input; becomes I/O0 output during Dual-I/O reads, delivering LSB of dual-bit data stream. |
| SO (I/O1) | Serial Output / Dual-I/O Data 1 | Data output in standard SPI; becomes I/O1 output during Dual-I/O reads, delivering MSB of dual-bit data stream. |
| WP | Write Protect | Active-low hardware lock; when asserted, prevents status register writes and sector protection changes-critical for secure boot integrity. |
| HOLD | Hold Control | Active-low pause signal; suspends ongoing SPI transfer without resetting internal state, enabling low-latency host interruption. |
| VCC | Power Supply | Single 1.65–4.4 V rail powers core logic and flash array; no auxiliary voltage required for programming/erasing. |
| GND | Ground Reference | Common return path for VCC; must be low-impedance connection to minimize noise coupling into sensitive read paths. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-I/O Read Mode | Delivers 2-bit data per SCK falling edge, doubling effective read bandwidth over standard SPI-reducing boot time in resource-constrained MCUs. |
| Flexible Erase Architecture | Supports 256-byte page erase for fine-grained data logging and 64-kByte block erase for full firmware image updates-minimizing flash wear and system downtime. |
| 128-byte OTP Security Register | Factory-programmed 64-byte unique ID + 64-byte user-programmable space enables device serialization, ESN binding, and locked key storage for secure boot chains. |
| Ultra-Deep Power-Down | 200 nA quiescent current allows multi-year operation on coin cells in wireless sensors-enabling maintenance-free deployment in inaccessible locations. |
| Status Interrupt Pin Support | Active-low interrupt signals completion of program/erase operations, allowing host MCU to enter deep sleep instead of polling-cutting system-level power by >30%. |
Applications
| Wireless Sensor Node | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Battery-powered environmental monitor transmitting temperature/humidity data every 15 minutes via LoRaWAN. IC Role / Device Role / Timing Role: Stores calibrated sensor coefficients, OTA update payload, and last-known configuration; retains data across power cycles with 20-year retention. Use Value: Ultra-deep power-down (200 nA) extends CR2032 battery life beyond 5 years; 256-byte page erase enables efficient logging without erasing full firmware. | Use Scenario: Programmable Logic Controller storing ladder logic firmware and runtime parameters in factory automation equipment. IC Role / Device Role / Timing Role: Nonvolatile boot memory holding safety-critical control code; hardware WP pin prevents accidental overwrite during field servicing. Use Value: 64-kByte block erase allows full firmware replacement in <720 ms; industrial temp range (–40°C to +85°C) ensures reliability in unconditioned control cabinets. |
| Smart Home Hub Boot Memory | Medical Wearable Configuration Store |
Use Scenario: Wi-Fi-enabled home hub loading Linux kernel and device drivers from external flash at power-up. IC Role / Device Role / Timing Role: SPI Flash providing code shadowing path; Dual-I/O read mode achieves 140 MB/s effective throughput to reduce boot latency below 500 ms. Use Value: 70 MHz max clock and 6 ns tV enable fast instruction fetch; 4-kByte block erase isolates driver updates from core OS partition. | Use Scenario: ECG patch storing calibration offsets, patient ID, and usage history for FDA-regulated remote monitoring. IC Role / Device Role / Timing Role: Secure nonvolatile storage with OTP register holding encrypted keys and unique device identifier for HIPAA-compliant data traceability. Use Value: 128-byte OTP register provides tamper-resistant serialization; 100,000-cycle endurance supports lifetime recalibration events. |
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 SPI Flash, 1.65–1.95 V only; no Dual-I/O; 100 µA standby current vs. 25 µA. | Limited to ultra-low-voltage systems; lacks hardware WP and OTP security register. | Select when operating strictly at 1.8 V and security features are unnecessary. |
| Micron MT25QL02GA | 2 Mbit Quad SPI Flash; supports QPI/DTR modes; 3.3 V only; 25 µA standby but no ultra-deep power-down mode. | Higher throughput in Quad mode but incompatible pinout and voltage range; no 200 nA power state. | Choose for systems requiring quad-speed read and already using 3.3 V infrastructure. |
Compared with W25Q20EW and MT25QL02GA, the AT25XV021A-XMHV-T uniquely combines wide 1.65–4.4 V operation, Dual-I/O acceleration, 200 nA ultra-deep power-down, and integrated OTP security-making it optimal for battery-powered, secure, and voltage-flexible embedded designs.
Availability
AT25XV021A-XMHV-T is available at Aetrix Electronics and suitable for wireless sensor nodes, industrial PLC firmware storage, and smart home hub boot memory requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AT25XV021A-XMHV-T 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 connectivity solutions for automotive, industrial, and IoT markets.
The AT25XV021A belongs to Renesas' low-power serial Flash product line, engineered specifically for energy-constrained, secure, and voltage-agile embedded systems-from disposable medical sensors to industrial gateways.
FAQ
What is the maximum operating frequency supported by the AT25XV021A-XMHV-T?
The AT25XV021A-XMHV-T supports a maximum clock frequency of 70 MHz in standard and Dual-I/O read modes. This enables high-speed data access critical for fast boot sequences and real-time firmware updates. The device maintains timing compliance across its full industrial temperature range (–40°C to +85°C) and 1.65–4.4 V supply window.
Does the AT25XV021A-XMHV-T require a separate high-voltage supply for programming or erasing?
No, the AT25XV021A-XMHV-T does not require a separate high-voltage supply. All program and erase operations are performed using the same 1.65–4.4 V VCC rail that powers the device. Internal charge pumps generate necessary voltages, simplifying board design and eliminating external HV circuitry.
How is hardware write protection implemented on the AT25XV021A-XMHV-T?
Hardware write protection on the AT25XV021A-XMHV-T is controlled by the active-low WP pin. When WP is driven low, it locks protected sectors and prevents modification of the status register-ensuring firmware integrity during field operation. The pin is internally pulled high, so external pull-up is optional but recommended if unused.
What is the purpose and structure of the OTP security register in the AT25XV021A-XMHV-T?
The AT25XV021A-XMHV-T includes a 128-byte OTP security register: 64 bytes factory-programmed with a unique device identifier, and 64 bytes user-programmable for ESN, cryptographic keys, or calibration data. Once programmed, OTP bits cannot be reset-providing immutable device identity and secure key binding essential for trusted boot.
Can the AT25XV021A-XMHV-T operate reliably in battery-powered applications with intermittent power?
Yes, the AT25XV021A-XMHV-T is optimized for battery-powered use: its 200 nA ultra-deep power-down current extends shelf life and operational runtime significantly, while robust power-on reset behavior and 1.65 V minimum VCC ensure reliable initialization even as batteries discharge. It meets full industrial temperature specs without derating.
AT25XV021A-XMHV-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-T FAQ
1.How can I place an order for AT25XV021A-XMHV-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XV021A-XMHV-T 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-T reliable?
The price and inventory of AT25XV021A-XMHV-T 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-T is usually 5 days.
3.What payment methods are accepted for AT25XV021A-XMHV-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XV021A-XMHV-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XV021A-XMHV-T?
AT25XV021A-XMHV-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XV021A-XMHV-T 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-T?
For technical support, including AT25XV021A-XMHV-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XV021A-XMHV-T requirements.
6.How does Aetrix verify that AT25XV021A-XMHV-T is sourced from the original manufacturer or authorized distributors?
All AT25XV021A-XMHV-T 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-T meets industry standards.
7.What is the process for return or replacement of AT25XV021A-XMHV-T?
All AT25XV021A-XMHV-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25XV021A-XMHV-T, 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-T part is unused and in its original packaging.
Return procedure for AT25XV021A-XMHV-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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