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Microchip Technology AT25080A-10TU-2.7-T
- Part No.:
- AT25080A-10TU-2.7-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT25080A-10TU-2.7-T.pdf
- Description:
- IC EEPROM 8KBIT SPI 20MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,179
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Product details
Overview
AT25080A-10TU-2.7-T from Microchip Technology (formerly Atmel) is an 8-Kbit SPI serial EEPROM organized as 1024 × 8 bits, supporting 2.7–5.5 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 controllers, sensor nodes, and power management ICs.
For engineers reviewing the AT25080A-10TU-2.7-T datasheet, AT25080A-10TU-2.7-T pinout, AT25080A-10TU-2.7-T application, or AT25080A-10TU-2.7-T equivalent, key selection criteria include voltage range compatibility (2.7–5.5 V), TSSOP-8 package footprint, SPI Mode 0/3 timing compliance, block write protection granularity, and 1 million endurance cycles.
Technical Context
The AT25080A-10TU-2.7-T operates as a slave SPI peripheral with dedicated SI/SO pins, CS-controlled selection, and HOLD pin for communication suspension without sequence reset. Its instruction set includes WREN, WRDI, RDSR, WRSR, READ, and WRITE with MSB-first transmission.
It implements nonvolatile status register bits (BP0/BP1/WPEN) to configure 0%, 25%, 50%, or 100% memory array protection. Write operations require explicit WREN prior to WRITE, and self-timed internal write cycles complete in ≤5 ms with no external erase step.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8), sufficient for firmware parameter tables or calibration data in space-constrained designs |
| Supply Voltage | 2.7 V to 5.5 V - supports direct interface with 3.3 V and 5 V microcontrollers without level shifting |
| Max Clock Frequency | 20 MHz at VCC = 5 V - enables fast configuration reads during system boot or runtime updates |
| Page Write Size | 32 bytes - balances programming speed and granularity for partial updates without full-erase overhead |
| Endurance | 1 million write cycles - suitable for logging or counter applications with frequent writes |
| Data Retention | 100 years - ensures long-term reliability in unattended or maintenance-free deployments |
| Operating Temp | –40°C to +85°C - qualified for industrial temperature environments including motor drives and PLCs |
Pinout & Package
AT25080A-10TU-2.7-T is packaged in an 8-lead TSSOP (8A2) with 4.4 mm body width, 0.65 mm lead pitch, and RoHS-compliant green finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must be low to accept instructions and data on SI, and to drive output on SO |
| SCK | Serial Clock | Input clock synchronized to master; defines timing for SI sampling and SO output edges |
| SI | Serial Data Input | Receives op-codes, addresses, and write data; MSB-first, sampled on SCK rising edge (Mode 0) |
| SO | Serial Data Output | Drives read data and status bits; high-impedance when CS high or HOLD active |
| WP | Write Protect | Hardware lock for status register when WPEN=1; prevents accidental BP bit or WPEN changes |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting address counter; requires SCK low during assertion |
| VCC | Power Supply | 2.7–5.5 V supply; powers internal logic and charge pump for write/erase operations |
| GND | Ground | Reference for all I/O and internal circuitry; must be low-impedance return path |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Support | Interoperates with legacy 68HC11 and modern ARM Cortex-M SPI controllers without mode reconfiguration |
| Block Write Protection | Configurable 0%/25%/50%/100% array lock via nonvolatile BP0/BP1 bits - secures bootloader or calibration zones |
| Hardware + Software Write Disable | WP pin + WRDI instruction provide dual-layer protection against unintended writes during power transients or firmware faults |
| Self-timed Write Cycle | No external timing control needed; internal state machine handles charge pump and verify - simplifies host software |
| Low Standby Current | ≤7 µA at 2.7 V - extends battery life in always-on sensor nodes or energy-harvesting systems |
Applications
| Industrial PLC Configuration Storage | Smart Sensor Calibration Memory |
|---|---|
Use Scenario: Storing I/O mapping, PID coefficients, and alarm thresholds in programmable logic controllers subject to factory reprogramming and field updates. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed via SPI during startup and maintenance mode; holds critical operational parameters across power cycles. Use Value: Enables secure, field-upgradable configuration without requiring MCU code changes or external backup batteries. | Use Scenario: Retaining factory-calibrated offset/gain values and temperature compensation coefficients in MEMS accelerometers and environmental sensors. IC Role / Device Role / Timing Role: Dedicated calibration data repository read once per sensor initialization; immune to volatile RAM loss during sleep/wake transitions. Use Value: Maintains measurement accuracy over 100-year retention, eliminating recalibration requirements in sealed or inaccessible deployments. |
| Power Supply Sequencing Controller | Medical Device Parameter Backup |
Use Scenario: Holding power-on delay times, rail enable order, and fault recovery settings in multi-rail DC-DC sequencers used in telecom and server PSUs. IC Role / Device Role / Timing Role: SPI-configurable timing engine memory; updated only during service mode, read at every power-up to enforce safe sequencing. Use Value: Prevents hardware damage from incorrect rail ramp sequences while allowing flexible configuration across product variants. | Use Scenario: Preserving user-adjusted therapy parameters (e.g., infusion rate, dose limits) and device usage logs in portable insulin pumps and nebulizers. IC Role / Device Role / Timing Role: HIPAA-compliant persistent storage for safety-critical settings; accessed exclusively via authenticated MCU commands. Use Value: Ensures treatment continuity after battery replacement and meets IEC 62304 data integrity requirements for Class II medical devices. |
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 TSSOP package, 2.5–5.5 V range, but rated for –40°C to +125°C and supports 10 MHz max clock at 2.5 V | Higher temperature grade suits automotive under-hood use; lower max clock at low voltage affects high-speed logging | Select when extended temperature operation or AEC-Q100 qualification is required; verify timing margins at target VCC |
| BR24G08NUX-10 | Rohm 8-Kbit I²C EEPROM in 8-lead TSSOP; 1.7–5.5 V, 400 kHz/1 MHz modes, no HOLD/WP pins, uses I²C addressing instead of SPI op-codes | Requires I²C bus instead of SPI; lacks hardware suspend and configurable block protection - simpler but less flexible | Choose for cost-sensitive, low-pin-count designs where I²C is already present and advanced protection is unnecessary |
Compared with M95080-DRMN3TP/K and BR24G08NUX-10, the AT25080A-10TU-2.7-T provides superior SPI timing headroom at 5 V (20 MHz vs. 10 MHz), integrated HOLD functionality for deterministic interrupt handling, and finer-grained 25%/50% block protection - making it optimal for industrial real-time systems demanding robustness and configurability.
Availability
AT25080A-10TU-2.7-T is available at Aetrix Electronics and suitable for industrial automation, smart sensor design, and medical device manufacturing requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for AT25080A-10TU-2.7-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, with broad industrial and automotive qualifications.
The AT25080A-10TU-2.7-T belongs to Microchip's legacy Atmel serial EEPROM family, designed specifically for reliable, low-voltage, SPI-based nonvolatile storage in resource-constrained embedded systems.
FAQ
What is the maximum clock frequency supported by the AT25080A-10TU-2.7-T?
The AT25080A-10TU-2.7-T supports up to 20 MHz SCK frequency when operated at VCC = 5.0 V. At 2.7 V, the maximum clock rate is 10 MHz, and at 1.8 V (not applicable to this -2.7 variant), it drops to 5 MHz. These values are specified in Table 1-3 of the datasheet and reflect guaranteed AC timing performance across the industrial temperature range.
Does the AT25080A-10TU-2.7-T support both SPI Mode 0 and Mode 3?
Yes, the AT25080A-10TU-2.7-T supports both SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1), as explicitly stated in its features list. The datasheet describes Mode 0 operation in detail, but electrical timing parameters are validated for both modes, enabling interoperability with diverse host controllers.
How does the write protection mechanism work on the AT25080A-10TU-2.7-T?
The AT25080A-10TU-2.7-T implements dual-layer write protection: hardware via the WP pin (when WPEN bit = 1) and software via status register bits BP0/BP1. WP low blocks all status register writes; BP0/BP1 define protected memory segments (0%, 25%, 50%, or 100%). Both mechanisms are nonvolatile and persist across power cycles.
What package type is used for the AT25080A-10TU-2.7-T?
The AT25080A-10TU-2.7-T uses an 8-lead TSSOP package (JEDEC MO-153, variant 8A2) with 4.4 mm body width, 0.65 mm lead pitch, and green RoHS-compliant finish. The "TU" in the part number explicitly denotes this TSSOP configuration, confirmed in the Ordering Information table.
Is the AT25080A-10TU-2.7-T suitable for automotive applications?
The AT25080A-10TU-2.7-T is rated for industrial temperature (–40°C to +85°C) and is not AEC-Q200 qualified. While it may function in some automotive cabin applications, Microchip offers automotive-grade variants (e.g., AT25080A-MAU-2.7-T) with extended temperature range and qualification testing - use those for under-hood or safety-critical automotive systems.
AT25080A-10TU-2.7-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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:
- 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-T FAQ
1.How can I place an order for AT25080A-10TU-2.7-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080A-10TU-2.7-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 AT25080A-10TU-2.7-T reliable?
The price and inventory of AT25080A-10TU-2.7-T 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-T is usually 5 days.
3.What payment methods are accepted for AT25080A-10TU-2.7-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080A-10TU-2.7-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080A-10TU-2.7-T?
AT25080A-10TU-2.7-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080A-10TU-2.7-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 AT25080A-10TU-2.7-T?
For technical support, including AT25080A-10TU-2.7-T 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-T requirements.
6.How does Aetrix verify that AT25080A-10TU-2.7-T is sourced from the original manufacturer or authorized distributors?
All AT25080A-10TU-2.7-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 AT25080A-10TU-2.7-T meets industry standards.
7.What is the process for return or replacement of AT25080A-10TU-2.7-T?
All AT25080A-10TU-2.7-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25080A-10TU-2.7-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 AT25080A-10TU-2.7-T part is unused and in its original packaging.
Return procedure for AT25080A-10TU-2.7-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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