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Microchip Technology AT25080N-10SC
- Part No.:
- AT25080N-10SC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25080N-10SC.pdf
- Description:
- IC EEPROM 8KBIT SPI 3MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,733
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Product details
Overview
AT25080N-10SC from Atmel is an 8-Kbit (1024 × 8) SPI serial EEPROM optimized for low-voltage embedded systems, supporting VCC = 2.7V to 5.5V, 3.0 MHz clock rate at 5V, 32-byte page write, and hardware/software write protection via WP pin and status register. It operates in SPI Modes 0 and 3 and is used in industrial control modules for nonvolatile parameter storage.
For engineers reviewing the AT25080N-10SC datasheet, AT25080N-10SC pinout, AT25080N-10SC application, or AT25080N-10SC equivalent, key selection criteria include its 2.7–5.5V supply range, 5 ms typical write cycle time, 1 million endurance cycles, 100-year data retention, and compatibility with microcontrollers featuring standard SPI peripherals such as the 68HC11 family.
Technical Context
The AT25080N-10SC implements a synchronous slave SPI interface with dedicated SI (input) and SO (output) pins, requiring CS activation and MSB-first data framing. Its internal architecture includes an 8-bit instruction register handling op-codes like WREN, WRITE, RDSR, and WRSR, with automatic address incrementing during multi-byte reads.
Block write protection is managed through nonvolatile BP0/BP1 bits in the status register, enabling selective locking of 0%, 25%, 50%, or 100% of the memory array. The HOLD pin suspends ongoing serial transfers without resetting the sequence, while the WP pin-when enabled via WPEN-blocks status register writes when pulled low.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 words × 8 bits); sufficient for firmware configuration tables or calibration data in compact MCU-based systems. |
| Supply Voltage Range | 2.7V to 5.5V; supports dual-rail designs and brown-out tolerant operation across commercial temperature range (0°C to +70°C). |
| Max Clock Frequency | 3.0 MHz at VCC = 5.0V; enables fast parameter loading without requiring high-speed MCU peripherals. |
| Write Cycle Time | 5 ms typical; defines minimum delay between successive page writes and impacts system-level command response latency. |
| Endurance | 1 million write cycles; ensures reliable logging or counter updates over >10 years in field-deployed equipment. |
| Data Retention | 100 years at +25°C; guarantees long-term integrity of stored settings without battery backup. |
| Page Size | 32 bytes; aligns with common MCU DMA buffer sizes and simplifies firmware write management logic. |
Pinout & Package
AT25080N-10SC is packaged in an 8-lead JEDEC SOIC (8S1), measuring 3.99 mm × 4.98 mm × 1.73 mm, with gull-wing leads and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must be held low for entire SPI transaction; controls device readiness and SO output state. |
| SCK | Serial Clock | Master-generated clock input; timing reference for SI sampling and SO output; supports modes 0 and 3 only. |
| SI | Serial Data Input | Unidirectional data path for op-codes, addresses, and write data; ignored unless CS is low and device is write-enabled. |
| SO | Serial Data Output | Unidirectional data path for read data and status register contents; high-impedance when CS is high or HOLD is active. |
| GND | Ground Reference | Primary return path for VCC, I/O, and internal logic; requires low-impedance PCB connection to minimize noise coupling. |
| VCC | Power Supply | Single-supply input (2.7–5.5V); powers core logic, memory array, and I/O buffers; bypass capacitor recommended near pin. |
| WP | Write Protect | Hardware lock for status register writes when WPEN = 1; prevents accidental configuration corruption during power transitions. |
| HOLD | Communication Suspend | Pauses SPI transfer mid-sequence without resetting internal state; allows MCU to service higher-priority interrupts. |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode Support | Compatible with both Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), ensuring interoperability with diverse MCU families including 68HC11 and ARM Cortex-M SPI controllers. |
| Multi-Voltage Operation | Single device supports 1.8V, 2.7V, and 5.0V supply rails via suffix variants; AT25080N-10SC specifically targets 2.7–5.5V systems without level-shifting. |
| Flexible Write Protection | Status register-controlled BP0/BP1 bits allow runtime-selectable protection of 0%, 25%, 50%, or 100% of memory-critical for safeguarding bootloader or security keys. |
| Self-Timed Writes | No external erase cycle required; internal timing eliminates need for MCU wait-state insertion or polling overhead beyond RDSR status checks. |
| Low Standby Current | 2.0 µA max at VCC = 5.0V and CS = VCC; reduces quiescent power in always-on sensor nodes or battery-backed controllers. |
Applications
| Industrial PLC Configuration Storage | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Storing calibrated sensor offsets, I/O mapping tables, and user-defined logic parameters in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed via SPI during boot or reconfiguration events; no timing-critical real-time interaction. Use Value: Enables field-upgradable logic without firmware reflashing; 1M endurance supports >1000 factory commissioning cycles per unit. |
Use Scenario: Retaining door lock states, mirror position presets, and lighting profiles across ignition cycles in automotive BCMs. IC Role / Device Role / Timing Role: Low-power, AEC-Q100-compatible (via industrial-grade variants) EEPROM interfacing with 8-bit MCUs over SPI. Use Value: 100-year data retention ensures memory integrity over vehicle lifetime; WP pin prevents corruption during load dump transients. |
| Medical Infusion Pump Calibration | Smart Energy Meter Firmware Parameters |
Use Scenario: Holding flow-rate calibration coefficients, alarm thresholds, and usage logs in Class II medical devices requiring traceable configuration history. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage accessed during startup and maintenance mode; write-protection enforced via WP and status register. Use Value: Block write protection isolates critical calibration data from routine operational writes; 2.7–5.5V operation matches pump's main rail. |
Use Scenario: Storing tariff schedules, metering constants, and communication credentials in ANSI C12.19-compliant smart meters with frequent firmware updates. IC Role / Device Role / Timing Role: SPI EEPROM integrated into meter SoC subsystem; supports secure credential updates via encrypted host commands. Use Value: 32-byte page writes align with AES-128 block encryption output; 5 ms write time minimizes update window during power-fail scenarios. |
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, same 2.7–5.5V range and 3 MHz speed, but uses different status register bit layout and lacks HOLD pin. | Requires firmware adaptation for status register access and no suspend capability during SPI transfers. | Choose when HOLD functionality is unused and ST's qualification documentation better fits your audit requirements. |
| BR24G08FJ-WE2 | Rohm 8-Kbit SPI EEPROM; supports 1.7–5.5V, includes built-in write protect logic independent of WP pin, but maximum clock is 2 MHz at 5V and standby current is 3 µA (vs. 2 µA for AT25080N-10SC). | Better ultra-low-voltage support down to 1.7V; slightly slower interface and higher quiescent draw may impact battery life in edge cases. | Prefer for designs needing sub-2.7V operation or enhanced hardware write lock robustness, accepting minor speed and power trade-offs. |
Compared with M95080-WMN6TP and BR24G08FJ-WE2, AT25080N-10SC offers unique HOLD functionality for interrupt-safe SPI transfers and tighter 2 µA standby current at 5V, making it optimal for interrupt-driven embedded systems where deterministic bus arbitration and minimal sleep-mode leakage are critical.
Availability
AT25080N-10SC is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical device manufacturing requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for AT25080N-10SC 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) is a semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and secure authentication ICs for industrial, automotive, and consumer markets.
The AT25080N-10SC belongs to Atmel's SPI Serial EEPROM product line, designed specifically for reliable, low-power, pin-efficient nonvolatile storage in resource-constrained embedded systems interfacing with standard SPI masters.
FAQ
What is the operating temperature range for AT25080N-10SC?
The AT25080N-10SC is rated for commercial operation from 0°C to +70°C. This is confirmed by the "AT25080N-10SC" ordering code in the Commercial column of the AT25080 Ordering Information table (page 14), which specifies "Commercial (0°C to 70°C)" under Operation Range. Industrial-grade variants (e.g., AT25080N-10SI) exist but are distinct part numbers.
Does AT25080N-10SC support SPI Mode 1 or Mode 2?
No, AT25080N-10SC explicitly supports only SPI Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1), as stated in the Features section. Modes 1 and 2 are not supported - attempting to use them will result in incorrect data sampling or failed communication due to mismatched clock polarity and phase timing.
How does the HOLD pin function during an active AT25080N-10SC SPI transaction?
The HOLD pin suspends serial communication while preserving internal state: when brought low while SCK is low, it places SO in high-impedance and ignores SI inputs until HOLD is returned high (also while SCK is low). This allows the MCU to service interrupts without aborting the transaction - the AT25080N-10SC resumes exactly where it left off upon HOLD deassertion.
What memory organization does AT25080N-10SC use?
AT25080N-10SC organizes its 8192 bits as 1024 words of 8 bits each (1024 × 8). This is explicitly defined in the Description section and confirmed by the Address Key table (page 11), where AT25080 uses address bits A9–A0 (10 bits = 1024 locations), with A15–A10 marked as "Don't Care".
Can AT25080N-10SC be used with a 1.8V supply?
No - AT25080N-10SC is specified for 2.7V to 5.5V operation only. The -1.8 suffix variants (e.g., AT25080N-10SC-1.8) support 1.8V–3.6V, but AT25080N-10SC itself has no characterization or guarantee below 2.7V. Using it at 1.8V risks unreliable reads/writes and violates Absolute Maximum Ratings.
AT25080N-10SC 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25080N-10SC FAQ
1.How can I place an order for AT25080N-10SC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080N-10SC 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-10SC reliable?
The price and inventory of AT25080N-10SC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25080N-10SC is usually 5 days.
3.What payment methods are accepted for AT25080N-10SC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080N-10SC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080N-10SC?
AT25080N-10SC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080N-10SC 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-10SC?
For technical support, including AT25080N-10SC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080N-10SC requirements.
6.How does Aetrix verify that AT25080N-10SC is sourced from the original manufacturer or authorized distributors?
All AT25080N-10SC 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-10SC meets industry standards.
7.What is the process for return or replacement of AT25080N-10SC?
All AT25080N-10SC units undergo pre-shipment inspection (PSI). If there is an issue with AT25080N-10SC, 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-10SC part is unused and in its original packaging.
Return procedure for AT25080N-10SC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT25080N-10SC Tags
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