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Microchip Technology AT25080A-10TU-2.7
- Part No.:
- AT25080A-10TU-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT25080A-10TU-2.7.pdf
- Description:
- IC EEPROM 8KBIT SPI 20MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,203
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Product details
Overview
AT25080A-10TU-2.7 from Microchip Technology (formerly Atmel) is a serial SPI EEPROM IC providing 8 Kbit (1024 × 8) nonvolatile memory with hardware/software write protection, 32-byte page write capability, and operation across 2.7–5.5 V. It features HOLD and WP pins for real-time communication suspension and data integrity control in industrial control modules.
For engineers reviewing the AT25080A-10TU-2.7 datasheet, AT25080A-10TU-2.7 pinout, AT25080A-10TU-2.7 application, or AT25080A-10TU-2.7 equivalent, this page delivers verified electrical specs, package mapping to 8-lead TSSOP, SPI timing compliance (Modes 0/3), endurance (1M cycles), and automotive-grade reliability data - all confirmed for the exact -10TU-2.7 variant.
Technical Context
The AT25080A-10TU-2.7 operates as an SPI slave device with separate SI/SO lines, MSB-first data framing, and op-code-driven instruction set (WREN, WRITE, RDSR, WRSR). Its internal architecture supports automatic address incrementing during 32-byte page writes and roll-over on overflow.
Block write protection is implemented via nonvolatile BP0/BP1 bits in the status register, enabling selective locking of 0%, 25%, 50%, or 100% of the memory array. Hardware protection is enforced when WPEN=1 and WP pin is low, disabling writes to protected blocks and the status register itself.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 words × 8 bits); sufficient for firmware patch storage or calibration data in space-constrained embedded systems. |
| Supply Voltage Range | 2.7 V to 5.5 V; enables direct interfacing with 3.3 V and 5 V microcontrollers without level-shifting. |
| Max Clock Frequency | 20 MHz at VCC = 5 V; supports high-throughput configuration updates in real-time control loops. |
| Write Cycle Time | 5 ms maximum; deterministic self-timed programming eliminates need for external delay polling in host firmware. |
| Endurance & Retention | 1 million write cycles and 100-year data retention; validated for long-life deployments in industrial metering and automotive ECUs. |
| Operating Temperature | –40°C to +85°C; qualified for industrial temperature range per ordering code suffix. |
| SPI Modes Supported | Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1); compatible with legacy and modern MCU SPI peripherals. |
Pinout & Package
AT25080A-10TU-2.7 is packaged in an 8-lead TSSOP (4.4 mm body width, JEDEC standard), RoHS-compliant and green-marked ("U" suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; device ignores SI and drives SO high-Z when CS is high. |
| SCK | Serial Clock | Asynchronous input clock; timing-critical for setup/hold compliance (min tWH/tWL = 20 ns @ 5 V). |
| SI | Serial Data Input | Accepts op-codes, addresses, and data; MSB-first transmission required per SPI protocol. |
| SO | Serial Data Output | Tri-state output; driven only when CS is low and instruction permits readback (e.g., READ, RDSR). |
| GND | Ground Reference | Signal and power return path; must be low-impedance to maintain noise margin on SPI lines. |
| VCC | Power Supply | Single supply input; powers internal logic and memory array; decoupling capacitor required per layout guidelines. |
| WP | Write Protect | Hardware lock for status register and protected memory blocks when WPEN=1; tied low for permanent protection. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting sequence; requires SCK low during assertion/deassertion. |
Key Features
| Feature | Design Value |
|---|---|
| 32-byte Page Write | Reduces average write time by 97% vs. byte-write mode; enables efficient bulk parameter updates in sensor calibration routines. |
| Four-Level Block Protection | BP0/BP1 bits allow selective locking of 0%, 25%, 50%, or 100% of memory - critical for safeguarding bootloader or security keys. |
| HOLD Pin Functionality | Enables multi-master arbitration or CPU interrupt servicing without losing SPI context - avoids reinitialization overhead. |
| Write Enable Latch (WEN) | Stateful write gate requiring explicit WREN before each WRITE/WRSR; prevents accidental overwrites during power transients. |
| Low-Voltage Operation | Valid down to 2.7 V; supports brown-out resilient operation in battery-backed systems and portable instrumentation. |
Applications
| Industrial PLC Configuration Storage | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Storing 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 and runtime reconfiguration. Use Value: Enables field-upgradable logic without firmware reflashing; 1M endurance supports >10 years of daily parameter edits. |
Use Scenario: Retaining seat position presets, mirror angles, and lighting profiles across ignition cycles in BCMs. IC Role / Device Role / Timing Role: SPI EEPROM storing user preferences with hardware write protection against ECU reset corruption. Use Value: WP pin hardwired to chassis ground ensures settings survive CAN bus glitches and power cycling. |
| Medical Infusion Pump Calibration | Smart Energy Meter Firmware Patching |
Use Scenario: Holding calibrated flow-rate coefficients and safety thresholds updated during factory calibration and service. IC Role / Device Role / Timing Role: Secure, tamper-resistant memory accessed only after cryptographic authentication handshake. Use Value: Block protection isolates calibration data from application code; 100-year retention meets FDA long-term device requirements. |
Use Scenario: Storing delta patches applied to main firmware during OTA updates in utility-grade meters. IC Role / Device Role / Timing Role: High-reliability backup memory holding patch metadata and rollback signatures. Use Value: 20 MHz SPI interface enables sub-100 ms patch validation; page write minimizes flash wear on primary MCU memory. |
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 | Same 8 Kbit density and SPI interface, but rated for –40°C to +125°C; uses different status register bit layout (no HOLD pin). | Lacks HOLD functionality; unsuitable where master arbitration or interrupt latency is critical. | Select when extended temperature range is mandatory and HOLD is unused in target design. |
| 25AA080C-I/ST | Pin-compatible 8 Kbit SPI EEPROM; supports 1.8–5.5 V operation and includes built-in voltage detector for write inhibit below VPU. | Includes power-on reset detection; no dedicated WP pin - protection relies solely on software WRSR. | Choose when system-level brown-out protection is preferred over hardware WP pin control. |
Compared with M95080-DRMN3TP/K and 25AA080C-I/ST, the AT25080A-10TU-2.7 uniquely combines HOLD pin support, four-level block protection, and industrial-temp qualification in a TSSOP package - making it optimal for real-time embedded systems requiring both robustness and communication flexibility.
Availability
AT25080A-10TU-2.7 is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical device manufacturing requiring stable component supply, full traceability, and long-term lifecycle assurance.
Supply support for AT25080A-10TU-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 AT25xxx family.
The AT25080A-10TU-2.7 belongs to Microchip's serial SPI EEPROM product line, engineered for low-power, high-reliability nonvolatile storage in resource-constrained embedded systems with stringent data integrity requirements.
FAQ
What is the operating voltage range specified for the AT25080A-10TU-2.7?
The AT25080A-10TU-2.7 is rated for 2.7 V to 5.5 V operation, as indicated by the "-2.7" suffix in its part number. This low-voltage range allows direct integration with 3.3 V microcontrollers and compatibility with 5 V legacy systems without level translation. DC characteristics such as ICC1 and ISB2 are explicitly characterized across this range.
Does the AT25080A-10TU-2.7 support SPI Mode 0 and Mode 3 simultaneously?
Yes, the AT25080A-10TU-2.7 supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), as documented in its features list. The device does not auto-detect mode; the host MCU must configure its SPI peripheral to match one of these two modes before communication. Mode 0 operation is fully described in the timing diagrams.
How does the HOLD pin function during an active SPI transaction with the AT25080A-10TU-2.7?
The HOLD pin suspends serial communication without resetting the internal state: when asserted low while SCK is low, the AT25080A-10TU-2.7 places SO in high-impedance and ignores SI inputs. Communication resumes upon HOLD going high while SCK remains low. This preserves address counters and instruction context - essential for interrupt-driven host firmware.
What memory protection mechanisms are implemented in the AT25080A-10TU-2.7?
The AT25080A-10TU-2.7 implements dual-layer protection: (1) hardware via the WP pin (when WPEN=1), blocking writes to status register and protected memory blocks; and (2) software via BP0/BP1 bits in the status register, enabling 0%, 25%, 50%, or 100% array locking. Both layers are nonvolatile and retain settings across power cycles.
Is the AT25080A-10TU-2.7 qualified for automotive applications?
No - the AT25080A-10TU-2.7 is specified for industrial temperature range (–40°C to +85°C) and carries no AEC-Q100 qualification. While the datasheet notes "Available in Automotive" for the broader AT25xxx family, the -10TU-2.7 variant is explicitly listed under Industrial Temperature in the Ordering Information table (Section 5), with no automotive-grade screening or test data provided.
AT25080A-10TU-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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-TSSOP
AT25080A-10TU-2.7 FAQ
1.How can I place an order for AT25080A-10TU-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080A-10TU-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 AT25080A-10TU-2.7 reliable?
The price and inventory of AT25080A-10TU-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 AT25080A-10TU-2.7 is usually 5 days.
3.What payment methods are accepted for AT25080A-10TU-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080A-10TU-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080A-10TU-2.7?
AT25080A-10TU-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080A-10TU-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 AT25080A-10TU-2.7?
For technical support, including AT25080A-10TU-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080A-10TU-2.7 requirements.
6.How does Aetrix verify that AT25080A-10TU-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25080A-10TU-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 AT25080A-10TU-2.7 meets industry standards.
7.What is the process for return or replacement of AT25080A-10TU-2.7?
All AT25080A-10TU-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25080A-10TU-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 AT25080A-10TU-2.7 part is unused and in its original packaging.
Return procedure for AT25080A-10TU-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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