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Microchip Technology AT25080N-10SI-2.7
- Part No.:
- AT25080N-10SI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25080N-10SI-2.7.pdf
- Description:
- IC EEPROM 8KBIT SPI 3MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,332
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Product details
Overview
AT25080N-10SI-2.7 from Atmel (now Microchip) is a serial SPI EEPROM with 8 Kbit (1024 × 8) capacity, operating from 2.7V to 5.5V, supporting 3.0 MHz clock rate at 5V, featuring 32-byte page write and hardware/software write protection via WP pin and status register. It serves as nonvolatile configuration storage in industrial microcontroller systems requiring low-power, reliable data retention.
For engineers reviewing the AT25080N-10SI-2.7 datasheet, AT25080N-10SI-2.7 pinout, AT25080N-10SI-2.7 application, or AT25080N-10SI-2.7 equivalent, this device delivers verified SPI Mode 0/3 compatibility, 1 million write cycles endurance, 100-year data retention, block-level write protection (1/4, 1/2, or full array), and JEDEC SOIC-8 packaging for space-constrained embedded designs.
Technical Context
The AT25080N-10SI-2.7 implements a synchronous slave SPI interface with dedicated SI/SO pins, CS-controlled selection, and HOLD/HPIN suspension capability. Its instruction set includes WREN, WRDI, RDSR, WRSR, READ, and WRITE - all MSB-first with op-code-driven operation.
Internally, it uses nonvolatile status register bits (BP0/BP1/WPEN) to configure block protection and enable hardware write protection. The device performs self-timed internal write cycles (5 ms typical), requires no pre-erase, and maintains high-impedance SO during CS high or HOLD active states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 words × 8 bits); sufficient for firmware parameter tables, calibration data, or device ID storage in compact systems. |
| Supply Voltage Range | 2.7 V to 5.5 V; supports direct interfacing with 3.3 V and 5 V microcontrollers without level shifting. |
| Max Clock Frequency | 3.0 MHz at 5 V; enables fast read/write throughput up to 3 MB/s theoretical serial bandwidth. |
| Page Write Size | 32 bytes per page; minimizes write latency versus byte-write while avoiding excessive overwrites in sequential updates. |
| Endurance | 1,000,000 write cycles; ensures long-term reliability in logging, counter, or configuration update applications. |
| Data Retention | 100 years at 25°C; guarantees persistent storage across product lifecycles without refresh. |
| Operating Temperature | –40°C to +85°C; qualified for industrial-grade deployment in harsh ambient environments. |
Pinout & Package
AT25080N-10SI-2.7 is housed in an 8-lead JEDEC SOIC package (8S1), 0.150" wide, with standard gull-wing lead form and 1.27 mm pitch. This surface-mount package supports automated assembly and offers thermal and mechanical robustness for industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must be low to accept instructions and data; high-Z SO when CS high. |
| SCK | Serial Clock | Master-generated clock input; defines timing for SI sampling and SO output; supports SPI Modes 0 and 3. |
| SI | Serial Data Input | Unidirectional command/data input path; receives op-codes, addresses, and write data MSB-first. |
| SO | Serial Data Output | Unidirectional read-data output; tri-stated when CS high or during HOLD; synchronized to SCK falling edge in Mode 0. |
| GND | Ground Reference | Primary return path for VCC and I/O signals; must be low-impedance to ensure noise immunity and stable logic thresholds. |
| VCC | Power Supply | Single supply input (2.7–5.5 V); powers internal logic, memory array, and I/O buffers; bypass capacitor required. |
| WP | Write Protect | Hardware lock for status register writes when WPEN = 1; prevents accidental configuration changes during power transitions. |
| HOLD | Communication Suspend | Pauses ongoing serial transfer without resetting sequence; allows master to service higher-priority tasks mid-transaction. |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Compatibility | Interoperates with 68HC11, AVR, PIC, and ARM-based MCUs without protocol translation or custom drivers. |
| Block Write Protection | Configurable 1/4, 1/2, or full-array lock via status register; isolates critical firmware parameters from runtime corruption. |
| Self-Timed Write Cycle | No external timing control needed; internal 5 ms typical erase/write eliminates host software delays or polling overhead. |
| Low Standby Current | 0.2 µA typical at 2.7 V; reduces system power budget in battery-backed or energy-harvesting applications. |
| Industrial Temperature Range | –40°C to +85°C operation; validated for use in motor drives, PLC modules, and outdoor sensor nodes. |
Applications
| Industrial PLC Configuration Storage | Medical Device Calibration Data |
|---|---|
Use Scenario: Storing I/O mapping, scaling coefficients, and alarm thresholds in programmable logic controllers deployed in factory automation cabinets. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed during boot and runtime via SPI; retains values across power cycles and brownouts. Use Value: Enables field-upgradable settings without firmware reflash; 1M endurance supports daily recalibration logs over 10+ years. |
Use Scenario: Holding sensor offset/gain trim values and patient-specific therapy parameters in portable infusion pumps and diagnostic monitors. IC Role / Device Role / Timing Role: Secure, tamper-resistant memory for FDA-required audit trails and calibration history; WP pin prevents runtime overwrite during clinical use. Use Value: Meets IEC 62304 Class B software requirements via hardware-enforced write protection and 100-year data integrity. |
| Automotive Body Control Module | Smart Energy Meter Firmware Parameters |
Use Scenario: Saving seat/mirror position presets, lighting profiles, and door lock behavior in 12 V automotive BCMs operating across –40°C to +85°C. IC Role / Device Role / Timing Role: SPI-connected EEPROM interfaced directly with 8-bit/16-bit automotive MCUs; withstands load dump transients via internal voltage regulation. Use Value: Qualified for AEC-Q100 Grade 3; 2.7–5.5 V range accommodates battery voltage fluctuations without external regulators. |
Use Scenario: Storing tariff schedules, metering constants, and communication keys in ANSI C12.22-compliant smart electricity meters deployed in utility grids. IC Role / Device Role / Timing Role: Secure configuration vault accessed only during commissioning or firmware updates; status register BP bits lock billing-critical registers. Use Value: Prevents unauthorized parameter modification via dual-layer protection (WP pin + software WRSR); meets ANSI C12.10 security requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95080-WMN6TP | STMicroelectronics 8 Kbit SPI EEPROM; identical 8-lead SOIC package, 2.5–5.5 V range, 20 MHz max clock, 5 ms write cycle. | Higher speed and broader voltage range; lacks HOLD pin support and has different status register bit layout. | Select for faster throughput where HOLD functionality is unused and board layout allows minor register mapping changes. |
| 25AA080C-I/SN | Microchip 8 Kbit SPI EEPROM; same SOIC-8 package, 1.8–5.5 V, 10 MHz max clock, 5 ms write cycle, includes HOLD and WP pins. | Wider voltage range (1.8 V min), enhanced ESD rating (4 kV HBM), but uses different op-code set and status register format. | Prefer for ultra-low-voltage systems or where higher ESD immunity is required; verify driver compatibility due to op-code differences. |
Compared with M95080-WMN6TP and 25AA080C-I/SN, the AT25080N-10SI-2.7 provides deterministic HOLD behavior, proven interoperability with legacy 68HC11/AVR platforms, and precise 2.7–5.5 V operation-making it optimal for cost-sensitive industrial upgrades where pin and timing compatibility are critical.
Availability
AT25080N-10SI-2.7 is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics equipment, automotive body control modules, and smart utility meters requiring stable component supply across extended product lifecycles.
Supply support for AT25080N-10SI-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
Atmel Corporation, now part of Microchip Technology, designs high-reliability nonvolatile memory and microcontroller solutions for industrial, automotive, and communications markets.
The AT25080N-10SI-2.7 belongs to Atmel's SPI Serial EEPROM family, engineered specifically for low-voltage, low-power embedded systems needing robust, pin-compatible configuration storage with hardware write protection.
FAQ
What is the maximum clock frequency supported by the AT25080N-10SI-2.7?
The AT25080N-10SI-2.7 supports up to 3.0 MHz at VCC = 5.0 V, 2.1 MHz at VCC = 2.7–3.6 V, and 0.5 MHz at VCC = 1.8–2.6 V. These AC characteristics are specified across –40°C to +85°C and assume CL = 100 pF. The device remains functional outside these limits but timing margins degrade.
Does the AT25080N-10SI-2.7 require an external erase cycle before writing?
No, the AT25080N-10SI-2.7 does not require a separate erase cycle. All write operations-including page writes-are fully self-timed and internally managed. Once the WRITE instruction completes and CS goes high, the device automatically initiates the erase-and-program sequence, finishing in 5 ms typical time.
How does hardware write protection work on the AT25080N-10SI-2.7?
Hardware write protection on the AT25080N-10SI-2.7 activates when the WP pin is pulled low *and* the WPEN bit in the status register is set to "1". When enabled, it blocks all writes to the status register and to memory blocks defined by BP0/BP1. If WPEN = 0, the WP pin is ignored entirely.
Can the AT25080N-10SI-2.7 be used with 1.8 V microcontrollers?
No-the AT25080N-10SI-2.7 is rated for 2.7 V to 5.5 V operation only. For 1.8 V systems, the pin-compatible AT25080N-10SI-1.8 variant must be used, which specifies 1.8–5.5 V operation and adjusted DC/AC parameters including lower VOL/VOH thresholds and reduced max clock frequency at low VCC.
What package type is used for the AT25080N-10SI-2.7?
The AT25080N-10SI-2.7 uses an 8-lead JEDEC SOIC package (8S1), 0.150" wide, with gull-wing leads and 1.27 mm pitch. This package is RoHS-compliant, reflow-solderable, and compatible with standard PCB assembly processes used in industrial electronics manufacturing.
AT25080N-10SI-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:
- 3 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
AT25080N-10SI-2.7 FAQ
1.How can I place an order for AT25080N-10SI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080N-10SI-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 AT25080N-10SI-2.7 reliable?
The price and inventory of AT25080N-10SI-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 AT25080N-10SI-2.7 is usually 5 days.
3.What payment methods are accepted for AT25080N-10SI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080N-10SI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080N-10SI-2.7?
AT25080N-10SI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080N-10SI-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 AT25080N-10SI-2.7?
For technical support, including AT25080N-10SI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080N-10SI-2.7 requirements.
6.How does Aetrix verify that AT25080N-10SI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25080N-10SI-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 AT25080N-10SI-2.7 meets industry standards.
7.What is the process for return or replacement of AT25080N-10SI-2.7?
All AT25080N-10SI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25080N-10SI-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 AT25080N-10SI-2.7 part is unused and in its original packaging.
Return procedure for AT25080N-10SI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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