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Microchip Technology AT25080A-10TU-1.8
- Part No.:
- AT25080A-10TU-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT25080A-10TU-1.8.pdf
- Description:
- IC EEPROM 8KBIT SPI 20MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,104
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Product details
Overview
AT25080A-10TU-1.8 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 mode, and hardware/software write protection via WP pin and status register. It serves as nonvolatile configuration storage in industrial sensor nodes and embedded control modules requiring low-voltage reliability.
For engineers reviewing the AT25080A-10TU-1.8 datasheet, AT25080A-10TU-1.8 pinout, AT25080A-10TU-1.8 application, or AT25080A-10TU-1.8 equivalent, key selection criteria include 1.8 V minimum supply, TSSOP-8 package compatibility, SPI Mode 0/3 timing compliance, block write protection granularity, and 1 million endurance cycles with 100-year data retention.
Technical Context
The AT25080A-10TU-1.8 operates as a slave device on a three-wire SPI bus (CS, SCK, SI/SO), with dedicated HOLD and WP pins enabling suspend and hardware-level write inhibition. Its instruction set includes WREN, WRDI, RDSR, WRSR, READ, and WRITE - all MSB-first with op-code-driven command execution.
Internal architecture features a nonvolatile status register with BP0/BP1 bits for 0%, 25%, 50%, or 100% array protection, WPEN bit enabling/disabling hardware write protect, and automatic return to write-disable state post-write cycle. All programming is self-timed (≤5 ms) with no erase prerequisite.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 words × 8 bits); sufficient for firmware patch storage 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 families and backward compatibility with 3.3 V/5 V systems. |
| Max Clock Frequency | 20 MHz at VCC = 5 V; supports high-throughput configuration loading in real-time control loops. |
| Page Write Size | 32 bytes per write cycle; reduces transaction overhead versus byte-write-only EEPROMs. |
| Endurance & Retention | 1 million write cycles / 100 years data retention; validated for long-life deployment in unattended equipment. |
| Write Protection | Hardware (WP pin) + software (status register BP0/BP1); allows selective lock of top quarter/half/all memory blocks. |
| Operating Temp | –40°C to +85°C; qualified for industrial ambient environments without derating. |
Pinout & Package
AT25080A-10TU-1.8 is supplied in an 8-lead TSSOP package (4.4 mm body width, JEDEC standard), RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must be held low during full SPI transaction; controls SO output impedance state. |
| SCK | Serial Clock | Master-generated clock input; defines timing for SI sampling and SO output edges per SPI Mode 0/3. |
| SI | Serial Data Input | Receives op-codes, addresses, and write data; ignored when CS is high or HOLD is asserted. |
| SO | Serial Data Output | Drives read data; enters high-impedance state when CS is high or HOLD is active low. |
| WP | Write Protect | Hardware lock for status register and protected memory blocks when WPEN = 1; tied high for full write access. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting sequence; requires SCK low during assertion/deassertion. |
| VCC | Power Supply | 1.8 V to 5.5 V input; powers internal logic and charge pump; decoupling capacitor required near pin. |
| GND | Ground | Reference for all I/O and internal circuitry; must be low-impedance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Support | Interoperates with microcontrollers using either clock polarity/phase configuration without hardware adaptation. |
| 32-byte Page Write | Reduces total write time by >90% vs. byte-wise writes for contiguous data updates like parameter sets. |
| Block Write Protection | Enables secure storage of factory-calibrated values in protected sectors while allowing field-updatable parameters elsewhere. |
| Self-timed Write Cycle | Eliminates need for external timing control or polling delay; RDSR bit 0 indicates completion. |
| Low Standby Current | <0.1 µA at 1.8 V (ISB1); extends battery life in always-on IoT edge sensors. |
Applications
| Industrial Sensor Calibration | Medical Device Configuration |
|---|---|
Use Scenario: Storing temperature-compensated offset/gain coefficients for analog front-end sensors in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed during power-up initialization and runtime recalibration. Use Value: Enables field-replaceable sensor modules with unique calibration data retained across 100+ years without backup power. | Use Scenario: Holding user-selectable therapy parameters and safety limits in portable infusion pumps. IC Role / Device Role / Timing Role: Secure, tamper-resistant memory for critical operational settings enforced by hardware write protection. Use Value: Prevents accidental overwriting of FDA-mandated safety thresholds via WP pin hardwiring during manufacturing. |
| Automotive Body Control Module | Smart Energy Metering |
Use Scenario: Recording door lock actuation history and mirror position presets in 12 V automotive subsystems with local 3.3 V regulation. IC Role / Device Role / Timing Role: Low-voltage EEPROM interfacing directly with CAN microcontroller SPI peripheral. Use Value: Operates reliably at 1.8 V during cold-crank brownout conditions where main rail drops below 2.7 V. | Use Scenario: Storing tariff schedules, meter ID, and tamper-event logs in ANSI C12.22-compliant utility meters. IC Role / Device Role / Timing Role: High-reliability data logger with 1M-cycle endurance for daily billing record updates. Use Value: Guarantees 100-year retention of regulatory audit trails without periodic refresh or supercapacitor backup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95080-DRMN6TP/K | STMicroelectronics 8-Kbit SPI EEPROM; identical 1.8–5.5 V range, 20 MHz max, TSSOP-8, but uses different status register layout and lacks HOLD pin. | No HOLD functionality limits use in multi-master SPI systems requiring pause capability. | Select when HOLD is unused and ST's qualification for automotive AEC-Q100 Grade 2 is required. |
| BR24G08FJ-3GE2 | Rohm 8-Kbit SPI EEPROM; same voltage range and TSSOP-8 package, but only supports SPI Mode 0 and has 10 ms max write cycle time. | Slower write timing affects throughput in high-frequency parameter logging scenarios. | Choose for cost-sensitive consumer applications where 5 ms vs. 10 ms write latency is acceptable. |
Compared with M95080-DRMN6TP/K and BR24G08FJ-3GE2, the AT25080A-10TU-1.8 uniquely combines HOLD pin support, SPI Mode 3 compatibility, and 5 ms write cycle - making it optimal for industrial systems requiring robust communication control and fast nonvolatile updates.
Availability
AT25080A-10TU-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration, automotive body control modules, and smart energy metering requiring stable component supply across extended product lifecycles.
Supply support for AT25080A-10TU-1.8 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-1.8 belongs to Microchip's legacy Atmel serial EEPROM family, designed specifically for reliable, low-voltage nonvolatile storage in resource-constrained embedded systems where SPI interface simplicity and long-term data integrity are critical.
FAQ
What is the operating voltage range of the AT25080A-10TU-1.8?
The AT25080A-10TU-1.8 operates from 1.8 V to 5.5 V, supporting both low-voltage (1.8 V) and standard-voltage (2.7–5.5 V) modes. This dual-range capability allows direct integration with 1.8 V logic families and ensures compatibility with legacy 3.3 V and 5 V systems without level-shifting circuitry. The part maintains full AC/DC specifications across this entire range.
Does the AT25080A-10TU-1.8 support SPI Mode 3 (CPOL=1, CPHA=1)?
Yes, the AT25080A-10TU-1.8 explicitly supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), as confirmed in its official datasheet. This dual-mode support enables interoperability with a wider range of microcontrollers, including those with fixed SPI peripheral configurations that cannot be reconfigured to Mode 0.
How does the write protection work on the AT25080A-10TU-1.8?
The AT25080A-10TU-1.8 implements layered write protection: hardware-based via the WP pin (when WPEN=1), and software-configurable via BP0/BP1 bits in the status register. These bits allow locking 0%, 25%, 50%, or 100% of the memory array. The WP pin can be hardwired to GND or VCC depending on whether permanent or conditional protection is needed during system operation.
What is the maximum clock frequency supported by the AT25080A-10TU-1.8?
The AT25080A-10TU-1.8 supports up to 20 MHz SCK frequency at VCC = 5.0 V, 10 MHz at 2.7–5.5 V, and 5 MHz at 1.8–3.6 V. These graded speed ratings ensure timing compliance across its full voltage range, with AC characteristics fully characterized and tested per JEDEC standards for each voltage bin.
Is the AT25080A-10TU-1.8 pin-compatible with other variants in the AT25xxxA family?
Yes, the AT25080A-10TU-1.8 shares identical pinout and footprint with all AT25080A, AT25160A, AT25320A, and AT25640A variants in TSSOP-8 (8A2) packaging. Memory size differences do not affect pin function or electrical behavior - enabling drop-in upgrades or design reuse across density points without PCB revision.
AT25080A-10TU-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- 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-TSSOP
AT25080A-10TU-1.8 FAQ
1.How can I place an order for AT25080A-10TU-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080A-10TU-1.8 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-1.8 reliable?
The price and inventory of AT25080A-10TU-1.8 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-1.8 is usually 5 days.
3.What payment methods are accepted for AT25080A-10TU-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080A-10TU-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080A-10TU-1.8?
AT25080A-10TU-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080A-10TU-1.8 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-1.8?
For technical support, including AT25080A-10TU-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080A-10TU-1.8 requirements.
6.How does Aetrix verify that AT25080A-10TU-1.8 is sourced from the original manufacturer or authorized distributors?
All AT25080A-10TU-1.8 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-1.8 meets industry standards.
7.What is the process for return or replacement of AT25080A-10TU-1.8?
All AT25080A-10TU-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT25080A-10TU-1.8, 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-1.8 part is unused and in its original packaging.
Return procedure for AT25080A-10TU-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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