My Inquiry
My Account
Renesas AT25XV021A-MAHV-T
- Part No.:
- AT25XV021A-MAHV-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
AT25XV021A-MAHV-T.pdf
- Description:
- IC FLASH 2MBIT SPI 70MHZ 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,523
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT25XV021A-MAHV-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 at up to 70 MHz with 6 ns clock-to-output delay. It features 256-byte page erase, uniform 4/32/64-kByte block erase, and hardware write protection via WP pin. Used in code shadowing, OTA firmware updates, and secure local data storage for battery-powered IoT edge nodes.
For engineers reviewing the AT25XV021A-MAHV-T datasheet, AT25XV021A-MAHV-T pinout, AT25XV021A-MAHV-T application, or AT25XV021A-MAHV-T equivalent, key selection criteria include ultra-low 200 nA deep power-down current, OTP security register with factory-programmed unique ID, SPI Mode 0/3 compatibility, and industrial temperature range support.
Technical Context
The AT25XV021A-MAHV-T implements a dual-I/O SPI interface enabling two-bit-per-clock read transfers, reducing instruction latency versus standard single-I/O operation. Its memory architecture supports hierarchical erasure-page (256 B), block (4/32/64 kB), and full chip-with dedicated status register polling and active interrupt signaling for host sleep/wake coordination during program/erase cycles.
Hardware-controlled sector locking via the WP pin operates in conjunction with software-based protection commands (Protect Sector, Global Protect) and a 128-byte OTP security register split into 64-byte factory-unique and 64-byte user-programmable fields. Power management includes Deep Power-Down (5 µA) and Ultra-Deep Power-Down (200 nA) modes with chip-select–triggered entry/exit sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (256 kByte) non-volatile Flash array optimized for mixed code/data storage |
| Supply Voltage Range | 1.65 V – 4.4 V - enables direct interfacing with Li-ion, Li-poly, and coin-cell batteries without regulation |
| Max Clock Frequency | 70 MHz - supports high-throughput firmware reads and OTA update streaming |
| Read Latency | 6 ns tV (clock-to-output) - minimizes CPU wait states during code execution from flash |
| Erase Granularity | 256-Byte page + 4/32/64-kByte uniform blocks - balances wear leveling and update efficiency |
| Power-Down Current | 200 nA typical Ultra-Deep Power-Down - extends multi-year battery life in always-on sensors |
| Endurance & Retention | 100,000 program/erase cycles; 20-year data retention - suitable for field-deployed firmware storage |
Pinout & Package
AT25XV021A-MAHV-T is packaged in an 8-lead SOIC (150-mil) with standard JEDEC footprint and pinout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; initiates command latching on high-to-low transition and terminates operations on low-to-high |
| SCK | Serial Clock | Master-generated clock; commands/addresses latched on rising edge, data output on falling edge |
| SI (I/O0) | Serial Input / Dual-I/O Data Line 0 | Input for commands/addresses; becomes bidirectional I/O0 during Dual-I/O read for parallel bit transfer |
| SO (I/O1) | Serial Output / Dual-I/O Data Line 1 | Output for read data; remains I/O1 during Dual-I/O read to deliver second bit per SCK cycle |
| WP | Write Protect | Active-low hardware lock; internally pulled high; enables sector-level protection independent of software state |
| HOLD | Hold Control | Active-low pause signal; suspends SPI communication without deselecting device or resetting internal state |
| VCC | Power Supply | Single supply input (1.65–4.4 V); powers all logic and memory functions - no auxiliary voltage required |
| GND | Ground Reference | System ground return path; required for stable operation and ESD robustness |
Key Features
| Feature | Design Value |
|---|---|
| Dual-I/O Read Mode | Delivers 2 bits per SCK cycle - doubles effective read bandwidth vs. standard SPI, accelerating boot and OTA fetch |
| Flexible Erase Architecture | Page (256 B) + 4/32/64-kB blocks - enables fine-grained firmware patching and coarse bulk reprogramming |
| OTP Security Register | 128-byte field with 64-byte factory-unique ID + 64-byte user space - supports device serialization and key binding |
| Ultra-Low Power Modes | 200 nA Ultra-Deep Power-Down - reduces annual energy draw to <1.8 µAh, critical for 10+ year battery life |
| Hardware Write Protection | WP pin locks protected sectors regardless of SPI command state - prevents accidental overwrite during brownout |
| Status Interrupt Support | Active-low interrupt pin (via Status Register bit) signals completion of program/erase - eliminates polling overhead |
Applications
| Firmware Storage in Wearables | Secure Boot Configuration |
|---|---|
Use Scenario: Storing BLE stack firmware and sensor calibration data in compact wearable devices powered by CR2032 coin cells. IC Role / Device Role / Timing Role: Non-volatile code and configuration storage with fast read access and ultra-low standby current. Use Value: 200 nA Ultra-Deep Power-Down extends battery life beyond 3 years; Dual-I/O read accelerates boot time by 40% vs. legacy SPI Flash. |
Use Scenario: Holding immutable bootloader images and cryptographic keys in medical diagnostic handhelds requiring FDA-compliant firmware integrity. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for boot-critical assets with hardware-enforced write lock. Use Value: Factory-programmed unique ID enables device-specific key derivation; WP pin ensures bootloader region remains unalterable during field updates. |
| OTA Update Buffer in Smart Sensors | Industrial Edge Node Code Shadowing |
Use Scenario: Acting as dual-bank update buffer for LoRaWAN soil moisture sensors deployed in remote agricultural sites. IC Role / Device Role / Timing Role: High-reliability temporary storage for validated firmware images prior to atomic swap. Use Value: 100,000 P/E cycles support >27 years of daily updates; 4-kB block erase enables rapid patch deployment without full reflash. |
Use Scenario: Hosting application code shadowed into external SDRAM for real-time PLC logic execution in factory automation gateways. IC Role / Device Role / Timing Role: Low-latency, high-bandwidth code source with deterministic 6 ns tV for zero-wait-state execution. Use Value: 70 MHz Dual-I/O read sustains >14 MB/s sustained throughput; industrial temp range (−40°C to +85°C) ensures reliability in control cabinets. |
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, 1.7–2.0 V supply only; no Ultra-Deep Power-Down mode (lowest standby = 1 µA) | Limited to narrow-voltage systems; unsuitable for single-cell Li-ion or coin-cell designs requiring sub-µA sleep | Select AT25XV021A-MAHV-T when wide voltage range and 200 nA power-down are mandatory. |
| Macronix MX25L2033F | 2 Mbit, 2.7–3.6 V supply; supports Quad-I/O but lacks OTP security register and hardware WP pin | Requires external security provisioning; no factory-unique ID for device authentication | Select AT25XV021A-MAHV-T when integrated OTP serialization and hardware write lock are required for secure boot. |
Compared with W25Q20EW and MX25L2033F, the AT25XV021A-MAHV-T uniquely combines ultra-wide 1.65–4.4 V operation, 200 nA power-down, and factory-programmed OTP ID - making it the only option for long-life, battery-constrained, and security-sensitive embedded deployments.
Availability
AT25XV021A-MAHV-T is available at Aetrix Electronics and suitable for firmware storage in wearables, secure boot configuration in medical devices, and OTA update buffering in smart sensors requiring stable component supply across extended product lifecycles.
Supply support for AT25XV021A-MAHV-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 memory solutions for automotive, industrial, infrastructure, and IoT markets.
The AT25XV021A-MAHV-T belongs to Renesas' low-power serial Flash memory product line, engineered specifically for energy-constrained, secure, and long-lifecycle connected devices operating across wide input voltage ranges.
FAQ
What is the operating voltage range of the AT25XV021A-MAHV-T?
The AT25XV021A-MAHV-T operates from 1.65 V to 4.4 V, enabling direct connection to single-cell lithium batteries (2.5–4.2 V), coin cells (2.0–3.0 V), and regulated 3.3 V rails without level shifting. This wide range eliminates external regulators in portable designs and maintains functionality during battery discharge sag.
Does the AT25XV021A-MAHV-T support Dual-I/O read mode?
Yes, the AT25XV021A-MAHV-T supports Dual-I/O read using the SI (I/O0) and SO (I/O1) pins to output two bits per SCK falling edge. This mode achieves up to 140 Mbps effective read bandwidth at 70 MHz, significantly accelerating firmware loading and OTA update verification compared to standard SPI.
How does the hardware write protection (WP) pin function on the AT25XV021A-MAHV-T?
The WP pin on the AT25XV021A-MAHV-T provides active-low hardware locking of protected memory sectors. When asserted low, it overrides software protection commands and prevents any write/erase activity to locked regions-even during brownout or reset conditions-ensuring bootloader and security-critical data remain immutable.
What is the purpose and structure of the OTP security register in the AT25XV021A-MAHV-T?
The AT25XV021A-MAHV-T includes a 128-byte OTP security register: 64 bytes factory-programmed with a unique device identifier (for serialization), and 64 bytes user-programmable (for keys or certificates). Once written, OTP fields cannot be erased, providing tamper-resistant identity and cryptographic binding essential for secure boot and anti-counterfeiting.
What power-saving modes does the AT25XV021A-MAHV-T offer, and how are they entered?
The AT25XV021A-MAHV-T offers Deep Power-Down (5 µA) and Ultra-Deep Power-Down (200 nA) modes. Both are entered via specific SPI commands (0xB9 and 0x79, respectively) while CS is low. Exit is triggered by toggling CS (Ultra-Deep) or asserting CS after ≥100 ns (Deep), enabling precise energy budgeting in battery-operated edge nodes.
AT25XV021A-MAHV-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- 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-UDFN (2x3)
AT25XV021A-MAHV-T FAQ
1.How can I place an order for AT25XV021A-MAHV-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XV021A-MAHV-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-MAHV-T reliable?
The price and inventory of AT25XV021A-MAHV-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-MAHV-T is usually 5 days.
3.What payment methods are accepted for AT25XV021A-MAHV-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XV021A-MAHV-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XV021A-MAHV-T?
AT25XV021A-MAHV-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XV021A-MAHV-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-MAHV-T?
For technical support, including AT25XV021A-MAHV-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XV021A-MAHV-T requirements.
6.How does Aetrix verify that AT25XV021A-MAHV-T is sourced from the original manufacturer or authorized distributors?
All AT25XV021A-MAHV-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-MAHV-T meets industry standards.
7.What is the process for return or replacement of AT25XV021A-MAHV-T?
All AT25XV021A-MAHV-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25XV021A-MAHV-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-MAHV-T part is unused and in its original packaging.
Return procedure for AT25XV021A-MAHV-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT25XV021A-MAHV-T Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
