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Microchip Technology AT25080AN-10SU-2.7
- Part No.:
- AT25080AN-10SU-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25080AN-10SU-2.7.pdf
- Description:
- IC EEPROM 8KBIT SPI 20MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,052
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Product details
Overview
AT25080AN-10SU-2.7 from Microchip Technology (formerly Atmel) is a 8-Kbit SPI serial EEPROM organized as 1024 × 8 bits, operating from 2.7V to 5.5V, supporting 20 MHz clock rate at 5V, with 32-byte page write and hardware/software write protection. It serves as nonvolatile configuration storage in industrial controllers, sensor nodes, and power management ICs.
For engineers reviewing the AT25080AN-10SU-2.7 datasheet, AT25080AN-10SU-2.7 pinout, AT25080AN-10SU-2.7 application, or AT25080AN-10SU-2.7 equivalent, key selection criteria include VCC range (2.7–5.5V), 8-lead SOIC package, SPI Mode 0/3 compatibility, block write protection granularity, and 1 million endurance cycles.
Technical Context
The AT25080AN-10SU-2.7 implements a synchronous SPI slave interface with separate SI/SO lines, CS-controlled selection, and HOLD pin for communication suspension without sequence reset. It uses an 8-bit instruction register with MSB-first transmission and supports WREN/WRDI/RDSR/WRSR/READ/WRITE op-codes.
Internal architecture includes a nonvolatile status register with BP0/BP1 bits enabling 1/4, 1/2, or full array protection, and WPEN bit controlling hardware write protect functionality. All programming cycles are self-timed (≤5 ms), require no pre-erase, and automatically disable write enable after completion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 words × 8 bits); sufficient for firmware parameter tables or calibration data in space-constrained designs. |
| Supply Voltage | 2.7V to 5.5V; enables direct interfacing with 3.3V and 5V microcontrollers without level shifting. |
| Max Clock Frequency | 20 MHz at VCC = 5V; supports high-speed configuration reads during system boot or runtime updates. |
| Write Endurance | 1 million cycles; suitable for applications requiring frequent parameter logging or field-updatable settings. |
| Data Retention | 100 years at +25°C; ensures long-term reliability of stored calibration, serial numbers, or security keys. |
| Page Write Size | 32 bytes; allows efficient burst writes while minimizing bus occupancy and reducing total write time vs. byte-wise writes. |
| Operating Temp | –40°C to +85°C; qualified for industrial environments including motor drives and outdoor metering equipment. |
Pinout & Package
AT25080AN-10SU-2.7 is packaged in an 8-lead JEDEC SOIC (8S1) with 0.150" body width, RoHS-compliant green finish, and standard gull-wing lead form factor.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must be low to accept commands; high impedance on SO when CS is high. |
| SCK | Serial Clock | Input-only clock; synchronizes all SI/SO data transfers; supports SPI Modes 0 and 3. |
| SI | Serial Data Input | Receives op-codes, addresses, and write data; ignored during HOLD or when CS is high. |
| SO | Serial Data Output | Drives read data and status bits; tri-states when CS is high or HOLD is asserted. |
| GND | Ground Reference | Return path for VCC and all I/O signals; requires low-impedance connection to system ground plane. |
| VCC | Power Supply | Primary supply input; decoupling capacitor (0.1 µF ceramic) required within 10 mm of pin. |
| WP | Write Protect | Hardware lock for status register and protected memory blocks when WPEN = 1 and WP = low. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting internal address counter; requires SCK low to assert. |
Key Features
| Feature | Design Value |
|---|---|
| Block Write Protection | Configurable via status register to protect 0%, 25%, 50%, or 100% of memory-prevents accidental overwrites of critical calibration or security data. |
| Hardware + Software Write Protection | WP pin and WRSR instruction jointly control protection scope; WPEN bit enables/disables hardware lock, allowing flexible field reconfiguration. |
| Self-Timed Write Cycle | No external timing control needed; internal circuitry completes erase-and-program in ≤5 ms, simplifying host firmware design. |
| SPI Mode Compatibility | Supports both Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), ensuring interoperability with diverse MCU SPI peripherals. |
| Low Standby Current | ≤0.3 µA at 2.7V (ISB2); extends battery life in always-on IoT edge sensors and portable medical devices. |
Applications
| Industrial PLC Configuration Storage | Smart Sensor Calibration Memory |
|---|---|
Use Scenario: Storing I/O mapping, scaling factors, and alarm thresholds in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Nonvolatile configuration EEPROM interfaced via SPI to ARM Cortex-M4 host MCU during power-up initialization. Use Value: Ensures deterministic startup behavior across 100-year data retention and survives 1M+ field updates without degradation. | Use Scenario: Holding temperature-compensated offset/gain coefficients and unique sensor ID in MEMS-based environmental monitors. IC Role / Device Role / Timing Role: SPI-accessible calibration store read once per measurement cycle; write occurs only during factory calibration or field recalibration. Use Value: Enables traceable, tamper-resistant calibration data with hardware write protection preventing runtime corruption. |
| Power Supply Parameter Backup | Medical Device Settings Storage |
Use Scenario: Retaining output voltage/current limits, soft-start timing, and fault recovery modes in digitally controlled AC/DC power supplies. IC Role / Device Role / Timing Role: SPI EEPROM connected to digital power controller (e.g., UCD3138); accessed during brown-out recovery and warm restart. Use Value: Guarantees safe power-up defaults even after extended storage; 2.7–5.5V operation matches auxiliary supply rails. | Use Scenario: Preserving user-selected therapy parameters, language preference, and audit log counters in portable infusion pumps. IC Role / Device Role / Timing Role: Secure configuration store with WP pin tied to system security controller to prevent unauthorized setting changes. Use Value: Meets IEC 62304 Class B software requirements via hardware-enforced write protection and 1M-cycle endurance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95080-DRMN3TP/K | STMicroelectronics 8-Kbit SPI EEPROM; identical 8-lead SOIC package, 2.5–5.5V supply, but max clock 20 MHz only at 5V (10 MHz at 2.7V). | Lower 2.7V clock performance may limit throughput in high-speed boot scenarios. | Select when ST ecosystem alignment or dual-sourcing is required; verify timing margins at 2.7V operation. |
| BR24G08NUX-10 | Rohm 8-Kbit SPI EEPROM; same 8-lead SOIC, 1.7–5.5V supply, 10 MHz max clock across full voltage range, and 400 kHz I²C-compatible mode. | Lacks HOLD pin and has lower speed; not suitable for systems requiring suspend/resume or >10 MHz writes. | Prefer for ultra-low-voltage (1.7V) designs or where I²C fallback is needed; avoid if HOLD or 20 MHz operation is mandatory. |
Compared with M95080-DRMN3TP/K and BR24G08NUX-10, the AT25080AN-10SU-2.7 delivers superior 2.7V-compatible 20 MHz operation and integrated HOLD functionality-critical for real-time embedded systems requiring deterministic SPI pause capability and fast configuration loading.
Availability
AT25080AN-10SU-2.7 is available at Aetrix Electronics and suitable for industrial PLCs, smart sensors, power supply controllers, and medical device settings storage requiring stable component supply across extended product lifecycles.
Supply support for AT25080AN-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 is a global semiconductor company delivering microcontrollers, analog, FPGA, and memory solutions for industrial, automotive, and consumer markets.
The AT25080AN-10SU-2.7 belongs to Microchip's legacy Atmel serial EEPROM family, designed specifically for robust, low-power nonvolatile data storage in resource-constrained embedded systems with SPI interfaces.
FAQ
What is the maximum clock frequency supported by AT25080AN-10SU-2.7 at 2.7V supply?
The AT25080AN-10SU-2.7 supports up to 10 MHz SCK frequency when operating at 2.7V, as specified in Table 1-3 AC Characteristics under the "2.7–5.5V" voltage column. This is distinct from its 20 MHz rating at 5V and ensures reliable timing margins in 3.3V systems with margin for voltage droop or noise.
Does AT25080AN-10SU-2.7 support SPI Mode 1 or Mode 2?
No, AT25080AN-10SU-2.7 explicitly supports only SPI Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1), as stated in the Features section. It does not support Mode 1 (CPOL=0, CPHA=1) or Mode 2 (CPOL=1, CPHA=0); attempting those modes will result in incorrect data sampling or communication failure.
How is block write protection configured on AT25080AN-10SU-2.7?
Block write protection on AT25080AN-10SU-2.7 is configured by writing to the status register using the WRSR instruction. Bits BP1 and BP0 determine protection level (none, 1/4, 1/2, or full array), and WPEN enables or disables hardware write protection via the WP pin. The status register is nonvolatile and retains settings across power cycles.
Can the HOLD pin be used while CS is high on AT25080AN-10SU-2.7?
No, the HOLD pin function is only active when the device is selected (CS low) and a serial sequence is underway. When CS is high, the device is deselected, SO is high-impedance, and HOLD has no effect-asserting HOLD during CS high does not alter device state or timing behavior.
What is the purpose of the WPEN bit in the AT25080AN-10SU-2.7 status register?
The WPEN bit (Bit 7) in the AT25080AN-10SU-2.7 status register controls whether the WP pin actively enforces hardware write protection. When WPEN = 1 and WP = low, writes to the status register and protected memory blocks are inhibited. When WPEN = 0, the WP pin is ignored, allowing full write access regardless of WP state.
AT25080AN-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:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 8Kbit
- Memory Organization:
- 1K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 20 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25080AN-10SU-2.7 FAQ
1.How can I place an order for AT25080AN-10SU-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080AN-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 AT25080AN-10SU-2.7 reliable?
The price and inventory of AT25080AN-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 AT25080AN-10SU-2.7 is usually 5 days.
3.What payment methods are accepted for AT25080AN-10SU-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080AN-10SU-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080AN-10SU-2.7?
AT25080AN-10SU-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080AN-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 AT25080AN-10SU-2.7?
For technical support, including AT25080AN-10SU-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080AN-10SU-2.7 requirements.
6.How does Aetrix verify that AT25080AN-10SU-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25080AN-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 AT25080AN-10SU-2.7 meets industry standards.
7.What is the process for return or replacement of AT25080AN-10SU-2.7?
All AT25080AN-10SU-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25080AN-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 AT25080AN-10SU-2.7 part is unused and in its original packaging.
Return procedure for AT25080AN-10SU-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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