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Microchip Technology AT25F512AN-10SU-2.7
- Part No.:
- AT25F512AN-10SU-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25F512AN-10SU-2.7.pdf
- Description:
- IC FLASH 512KBIT SPI 20MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,372
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Product details
Overview
AT25F512AN-10SU-2.7 from Atmel (now Microchip) is a 512 Kbit serial Flash memory IC optimized for low-voltage embedded systems. It delivers 65,536 × 8-bit organization, supports SPI Modes 0 and 3, operates at up to 33 MHz, and features hardware/software write protection via WP pin and status register. It is used in firmware storage for microcontroller-based industrial controllers and IoT edge nodes.
For engineers reviewing the AT25F512AN-10SU-2.7 datasheet, AT25F512AN-10SU-2.7 pinout, AT25F512AN-10SU-2.7 application, or AT25F512AN-10SU-2.7 equivalent, key selection criteria include 2.7–3.6 V operation, sector-level erase (1 s/sector), byte/page programming (75 µs/byte), 10,000 write cycles endurance, and dual-package availability (SOIC/SAP).
Technical Context
The AT25F512AN-10SU-2.7 implements a synchronous SPI slave interface with separate SI/SO pins and MSB-first data transfer. Its internal architecture divides memory into two 32 KB sectors, each containing 256 pages of 128 bytes, enabling granular program/erase control without full-chip erasure.
Write operations require explicit WREN instruction prior to PROGRAM, SECTOR ERASE, CHIP ERASE, or WRSR commands. Status register bits (RDY, WEN, BP0, WPEN) govern readiness, write enable state, block protection, and hardware write protect enable-each nonvolatile and self-timed for erase/program.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 512 Kbit (65,536 × 8 bits); sufficient for bootloader + configuration data in resource-constrained MCU systems |
| Supply Voltage | 2.7 V to 3.6 V; compatible with 3.3 V logic rails and battery-backed industrial designs |
| Max Clock Rate | 33 MHz; enables fast read/write throughput (e.g., ~4 MB/s burst read under ideal conditions) |
| Program Time | 75 µs/byte typical; allows rapid field updates without long blocking delays |
| Erase Time | 1.1 s/sector typical; predictable latency for firmware patching in real-time systems |
| Endurance | 10,000 write cycles; supports frequent parameter logging or OTA update staging |
| Data Retention | 20 years at +85°C; ensures long-term reliability in unattended equipment |
Pinout & Package
AT25F512AN-10SU-2.7 uses an 8-lead JEDEC SOIC package (8S1, 0.150" wide body, lead-free/halogen-free). Dimensions: 5.00 mm × 3.99 mm × 1.75 mm (L × W × H), pitch 1.27 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must be low for all SPI transactions; high-Z SO when CS high |
| SCK | Serial Clock | Input-only clock; synchronizes SI/SO data transfer per SPI Mode 0 or 3 timing |
| SI | Serial Data Input | MOSI input; receives op-codes, addresses, and data; ignored during HOLD or CS high |
| SO | Serial Data Output | MISO output; drives read data or status bits; high-impedance when CS high or HOLD active |
| GND | Ground | Reference for all I/O and supply; requires low-impedance connection to minimize noise coupling |
| VCC | Power Supply | 2.7–3.6 V supply; decoupling capacitor (0.1 µF) required near pin for stable operation |
| WP | Write Protect | Hardware lockout control; blocks status register writes when WP = low and WPEN = 1 |
| HOLD | Communication Suspend | Pauses ongoing SPI sequence without resetting address counter; requires SCK low to assert |
Key Features
| Feature | Design Value |
|---|---|
| Page-mode programming | 128-byte page writes reduce transaction overhead vs. byte-by-byte; improves firmware update efficiency |
| Dual-sector architecture | Independent 32 KB sectors allow concurrent code execution from one sector while updating the other |
| Hardware + software write protection | WP pin + BP0 bit provide layered defense against accidental erase/program in deployed systems |
| Self-timed erase/program | No external timing control needed; RDSR polling confirms completion, simplifying host firmware |
| Product ID read support | RDID command (0x9F) returns manufacturer code (0x1F) and device ID (0x65) for BOM verification |
Applications
| Firmware Storage | Configuration Data Logging |
|---|---|
Use Scenario: Storing boot code, application firmware, and calibration tables in a programmable logic controller (PLC) with no external EEPROM. IC Role / Device Role / Timing Role: Nonvolatile program memory mapped via SPI; accessed during power-up and OTA updates. Use Value: Enables field-upgradable firmware without requiring chip replacement or JTAG access. | Use Scenario: Recording sensor thresholds, user preferences, and runtime parameters in a smart HVAC controller. IC Role / Device Role / Timing Role: Parameter storage with wear leveling handled by host MCU; accessed on demand during initialization or mode change. Use Value: Preserves settings across power cycles with guaranteed 20-year retention at industrial temperatures. |
| Secure Bootloader Support | Industrial HMI Display Memory |
Use Scenario: Holding signed bootloader images and public keys in a medical device requiring secure boot validation. IC Role / Device Role / Timing Role: Read-only trusted memory region protected by BP0 bit; verified before executing main application. Use Value: Prevents unauthorized firmware injection by locking critical sectors during normal operation. | Use Scenario: Storing display assets (fonts, icons, UI layouts) for a factory-floor human-machine interface panel. IC Role / Device Role / Timing Role: High-speed SPI read buffer for graphics controller; accessed during screen refresh or theme switching. Use Value: Reduces external memory footprint and eliminates need for parallel NOR Flash in space-constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L512CM1I-12G | Same density (512 Kbit), 3V supply, but supports 80 MHz max clock and Quad SPI mode | Better suited for high-throughput read-heavy applications like audio streaming or GUI asset loading | Select if higher bandwidth or QSPI compatibility is required; not pin-compatible due to different pinout and command set |
| SST25VF512A-33-4I-SAE | Same voltage range and SPI interface, but uses SST proprietary command set and lacks HOLD pin | Compatible for basic read/write use cases where suspend functionality is unused | Choose for legacy SST-based designs; requires firmware adaptation for status register and protection bits |
Compared with MX25L512CM1I-12G and SST25VF512A-33-4I-SAE, the AT25F512AN-10SU-2.7 offers proven HOLD/sector protection integration and Atmel's mature SPI command set, making it optimal for cost-sensitive industrial control where deterministic timing and robust write protection are prioritized over raw speed.
Availability
AT25F512AN-10SU-2.7 is available at Aetrix Electronics and suitable for industrial control systems, IoT edge gateways, and medical diagnostic devices requiring stable component supply, extended temperature operation (−40°C to +85°C), and long-term lifecycle assurance.
Supply support for AT25F512AN-10SU-2.7 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 acquired Atmel in 2016 and maintains full product support, documentation, and manufacturing continuity for the AT25F512AN-10SU-2.7.
This device belongs to Atmel's legacy serial Flash memory family, designed specifically for reliable, low-power, SPI-based code and data storage in industrial and commercial embedded systems.
FAQ
What is the operating voltage range for the AT25F512AN-10SU-2.7?
The AT25F512AN-10SU-2.7 operates from 2.7 V to 3.6 V, making it compatible with standard 3.3 V logic systems and battery-powered applications down to 2.7 V. Absolute maximum supply voltage is 4.2 V, and operation outside the 2.7–3.6 V range may cause functional failure or reduced reliability. The "−2.7" suffix in the part number explicitly denotes this low-voltage specification.
Does the AT25F512AN-10SU-2.7 support both SPI Mode 0 and Mode 3?
Yes, the AT25F512AN-10SU-2.7 supports SPI Modes 0 (CPOL = 0, CPHA = 0) and 3 (CPOL = 1, CPHA = 1), as confirmed in its official datasheet. The device functions as a slave only, with SCK always an input. Timing diagrams and AC specifications in the datasheet are defined for Mode 0, but Mode 3 operation is fully functional and electrically validated.
How does write protection work on the AT25F512AN-10SU-2.7?
The AT25F512AN-10SU-2.7 implements dual-layer write protection: hardware via the WP pin (when WPEN = 1) and software via BP0 bit in the status register. When WP is low and WPEN = 1, status register writes are blocked. BP0 = 1 locks both 32 KB sectors, preventing program/erase. Protection is nonvolatile and persists across power cycles, ensuring persistent data integrity in harsh environments.
What is the endurance and data retention specification for the AT25F512AN-10SU-2.7?
The AT25F512AN-10SU-2.7 guarantees 10,000 write/erase cycles per sector and 20 years of data retention at +85°C ambient temperature. These values are characterized and specified in the official datasheet (Rev. 3345E). Endurance applies to individual sectors, and retention is measured under accelerated stress testing - both meet industrial-grade reliability requirements for long-lifecycle deployments.
Is the AT25F512AN-10SU-2.7 available in packages other than SOIC?
Yes, the AT25F512AN-10SU-2.7 is offered exclusively in the 8-lead JEDEC SOIC package (8S1). However, the same AT25F512A die is also available as AT25F512AY4-10YU-2.7 in the 8-lead SAP (Small Array Package, 6.00 mm × 4.90 mm), which shares identical electrical specs and timing but has a different pinout and footprint. The "SU" suffix in AT25F512AN-10SU-2.7 explicitly identifies the SOIC variant.
AT25F512AN-10SU-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 512Kbit
- Memory Organization:
- 64K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 20 MHz
- Write Cycle Time - Word, Page:
- 100µs
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25F512AN-10SU-2.7 FAQ
1.How can I place an order for AT25F512AN-10SU-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25F512AN-10SU-2.7 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 AT25F512AN-10SU-2.7 reliable?
The price and inventory of AT25F512AN-10SU-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25F512AN-10SU-2.7 is usually 5 days.
3.What payment methods are accepted for AT25F512AN-10SU-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25F512AN-10SU-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25F512AN-10SU-2.7?
AT25F512AN-10SU-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25F512AN-10SU-2.7 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 AT25F512AN-10SU-2.7?
For technical support, including AT25F512AN-10SU-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25F512AN-10SU-2.7 requirements.
6.How does Aetrix verify that AT25F512AN-10SU-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25F512AN-10SU-2.7 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 AT25F512AN-10SU-2.7 meets industry standards.
7.What is the process for return or replacement of AT25F512AN-10SU-2.7?
All AT25F512AN-10SU-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25F512AN-10SU-2.7, 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 AT25F512AN-10SU-2.7 part is unused and in its original packaging.
Return procedure for AT25F512AN-10SU-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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