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Microchip Technology AT25080AN-10SU-1.8-T
- Part No.:
- AT25080AN-10SU-1.8-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25080AN-10SU-1.8-T.pdf
- Description:
- IC EEPROM 8KBIT SPI 20MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,542
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Product details
Overview
AT25080AN-10SU-1.8-T from Microchip Technology (formerly Atmel) is an 8-Kbit SPI serial EEPROM organized as 1024 × 8 bits, supporting 1.8 V to 5.5 V operation, 20 MHz clock rate at 5 V, 32-byte page write, and hardware/software write protection via WP pin and status register. It serves as nonvolatile configuration storage in industrial control modules requiring low-voltage reliability.
For engineers reviewing the AT25080AN-10SU-1.8-T datasheet, AT25080AN-10SU-1.8-T pinout, AT25080AN-10SU-1.8-T application, or AT25080AN-10SU-1.8-T equivalent, this page delivers verified electrical specs, JEDEC SOIC-8 package details, SPI Mode 0/3 timing compliance, block protection mapping, and real-world use cases for embedded systems design.
Technical Context
The AT25080AN-10SU-1.8-T operates as a slave SPI peripheral with separate SI/SO lines, MSB-first data transfer, and chip-select–driven command framing. Its instruction set includes WREN, WRDI, RDSR, WRSR, READ, and WRITE, all initiated by CS falling edge.
It implements nonvolatile status register bits (BP0/BP1/WPEN) enabling 1/4-, 1/2-, or full-array hardware block protection. The HOLD pin suspends ongoing transfers without resetting sequence state, while self-timed 5 ms max write cycles eliminate external timing management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8), sufficient for firmware boot parameters or calibration tables in space-constrained designs |
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interface with 1.8 V logic or mixed-voltage systems without level shifters |
| Max Clock Frequency | 20 MHz at VCC = 5 V - supports high-throughput configuration loading in real-time control loops |
| Page Write Size | 32 bytes - minimizes write latency vs. byte-write EEPROMs; avoids partial-page overwrites in firmware updates |
| Write Endurance | 1 million cycles - suitable for dynamic logging or counter applications with frequent updates |
| Data Retention | 100 years at +25 °C - ensures long-term integrity of factory-trimmed sensor offsets or security keys |
| Operating Temp | –40 °C to +85 °C - qualified for industrial ambient environments without derating |
Pinout & Package
AT25080AN-10SU-1.8-T is supplied in an 8-lead JEDEC SOIC (8S1) package, 0.150" wide body, RoHS-compliant, green finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must be held low for entire SPI transaction; controls SO output impedance state |
| SCK | Serial Clock | Input-only master-generated clock; supports SPI Modes 0 and 3; timing critical for tWH/tWL compliance |
| SI | Serial Data Input | Command/address/data input path; sampled on SCK rising edge in Mode 0; requires tSU/tH setup/hold |
| SO | Serial Data Output | Read data output; high-impedance when CS high or during HOLD; tV/tHO define valid window |
| GND | Ground Reference | Signal and power return; must be low-impedance to minimize noise coupling into SPI signals |
| VCC | Power Supply | Single supply input; decoupling capacitor required near pin to suppress switching transients |
| WP | Write Protect | Hardware lock for status register and protected memory blocks when WPEN=1; overrides software writes |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without losing address/state; requires SCK low during assertion |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Support | Interoperates with legacy 68HC11 and modern ARM Cortex-M microcontrollers without protocol translation |
| 1.8 V Operation | Eliminates need for voltage translators in battery-powered or ultra-low-power IoT nodes |
| Block Write Protection | Configurable 1/4, 1/2, or full array lock prevents accidental overwrite of critical boot code or calibration data |
| Self-timed Write Cycle | No external wait-state logic required; RDSR polling confirms completion before next command |
| HOLD Pin Functionality | Enables multi-master arbitration or CPU interrupt servicing without corrupting ongoing EEPROM reads/writes |
Applications
| Industrial PLC Configuration Storage | Medical Device Calibration Data |
|---|---|
Use Scenario: Storing I/O mapping, PID tuning constants, and alarm thresholds in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed during power-up and runtime reconfiguration via SPI. Use Value: Ensures deterministic startup behavior after brownout recovery; 100-year retention preserves settings across equipment lifecycle. | Use Scenario: Holding sensor offset/gain coefficients and regulatory compliance logs in portable diagnostic instruments. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter store with hardware write lock for FDA-critical calibration records. Use Value: WP pin + BP bits prevent field technicians from inadvertently altering calibrated values during service. |
| Automotive Body Control Module | Smart Energy Meter Firmware Patch Area |
Use Scenario: Saving seat/mirror position presets and lighting profiles in 12 V automotive systems with local 3.3 V regulation. IC Role / Device Role / Timing Role: Low-voltage EEPROM interfaced directly to MCU GPIOs; withstands load-dump transients via robust VCC rating. Use Value: 1.8–5.5 V range eliminates level-shifter BOM cost; –40 °C to +85 °C rating meets AEC-Q100 Grade 3 requirements. | Use Scenario: Storing field-upgradable firmware patches and tariff tables in utility-grade electricity meters with 10+ year field life. IC Role / Device Role / Timing Role: High-endurance memory partition used for atomic OTA update staging and rollback support. Use Value: 1M write cycles enable daily patch validation; page-write mode reduces flash wear during frequent updates. |
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; 2.5–5.5 V supply; 10 MHz max clock at 2.5 V; SOIC-8 package | Lacks HOLD pin and 1.8 V support; lower speed limits high-throughput logging | Select when 1.8 V operation is unnecessary and HOLD functionality is unused |
| BR24G08NUX-10 | Rohm 8 Kbit SPI EEPROM; 1.7–5.5 V; 10 MHz max; TSSOP-8; built-in write protect register only (no WP pin) | No hardware WP pin; relies solely on software status register lock; different pinout | Choose for cost-sensitive consumer designs where physical write lock is not mandated |
Compared with M95080-DRMN3TP/K and BR24G08NUX-10, the AT25080AN-10SU-1.8-T uniquely combines 1.8 V operation, dedicated WP/HOLD pins, and 20 MHz speed-making it optimal for low-power industrial and medical systems requiring robust, pin-level data protection.
Availability
AT25080AN-10SU-1.8-T is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics, automotive body control units, and smart energy meters requiring stable component supply across extended product lifecycles.
Supply support for AT25080AN-10SU-1.8-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
Microchip Technology is a global semiconductor company specializing in microcontrollers, analog devices, and memory solutions for embedded control applications.
The AT25080A family is part of Microchip's serial EEPROM product line, engineered for reliable, low-voltage nonvolatile storage in industrial, automotive, and medical systems where data integrity and long-term retention are critical.
FAQ
What is the maximum clock frequency supported by the AT25080AN-10SU-1.8-T?
The AT25080AN-10SU-1.8-T supports up to 20 MHz SCK frequency at VCC = 5.0 V. At 1.8 V, the maximum clock rate is 5 MHz per AC Characteristics Table 1-3. This scaling ensures signal integrity and timing margin across its full 1.8–5.5 V operating range. Designers must consult tWH/tWL values in the datasheet to validate setup/hold compliance at their target voltage and speed.
Does the AT25080AN-10SU-1.8-T support SPI Mode 0 or Mode 3?
Yes, the AT25080AN-10SU-1.8-T supports both SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1). The datasheet explicitly documents Mode 0 operation, but electrical specifications and timing diagrams confirm compatibility with Mode 3. This dual-mode support allows seamless integration with diverse host MCUs including legacy 68HC11 and modern ARM-based controllers.
How does the write protection work on the AT25080AN-10SU-1.8-T?
The AT25080AN-10SU-1.8-T implements dual-layer write protection: hardware via the WP pin (when WPEN bit = 1) and software via BP0/BP1 bits in the status register. WP pin low blocks writes to protected memory blocks and the status register itself. Block protection levels (none, 1/4, 1/2, or full array) are configured using WRSR instruction. Both mechanisms can be used independently or concurrently for defense-in-depth data security.
What package type is used for the AT25080AN-10SU-1.8-T?
The AT25080AN-10SU-1.8-T uses an 8-lead JEDEC SOIC (8S1) package, 0.150" wide body, lead-free and RoHS-compliant with green finish. Its footprint matches standard SOIC-8 land patterns, enabling drop-in replacement in existing PCB layouts designed for compatible serial EEPROMs. Pin 1 is marked with a notch or dot per JEDEC specification.
Can the AT25080AN-10SU-1.8-T operate at 1.8 V supply voltage?
Yes, the AT25080AN-10SU-1.8-T is specifically rated for 1.8 V to 5.5 V operation, as indicated by the "-1.8" suffix in its ordering code. At 1.8 V, it guarantees 5 MHz SCK frequency, 100 µA max standby current (ISB1), and full read/write functionality. This makes it suitable for battery-powered or energy-harvesting systems where ultra-low-voltage operation is mandatory.
AT25080AN-10SU-1.8-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25080AN-10SU-1.8-T FAQ
1.How can I place an order for AT25080AN-10SU-1.8-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080AN-10SU-1.8-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 AT25080AN-10SU-1.8-T reliable?
The price and inventory of AT25080AN-10SU-1.8-T 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-1.8-T is usually 5 days.
3.What payment methods are accepted for AT25080AN-10SU-1.8-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080AN-10SU-1.8-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080AN-10SU-1.8-T?
AT25080AN-10SU-1.8-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080AN-10SU-1.8-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 AT25080AN-10SU-1.8-T?
For technical support, including AT25080AN-10SU-1.8-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080AN-10SU-1.8-T requirements.
6.How does Aetrix verify that AT25080AN-10SU-1.8-T is sourced from the original manufacturer or authorized distributors?
All AT25080AN-10SU-1.8-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 AT25080AN-10SU-1.8-T meets industry standards.
7.What is the process for return or replacement of AT25080AN-10SU-1.8-T?
All AT25080AN-10SU-1.8-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25080AN-10SU-1.8-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 AT25080AN-10SU-1.8-T part is unused and in its original packaging.
Return procedure for AT25080AN-10SU-1.8-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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