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Microchip Technology AT25080AY1-10YI-1.8
- Part No.:
- AT25080AY1-10YI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
AT25080AY1-10YI-1.8.pdf
- Description:
- IC EEPROM 8KBIT SPI 20MHZ 8MAP
- Quantity:
- Payment:
- Shipping:
Inventory:1,888
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Product details
Overview
AT25080AY1-10YI-1.8 from Microchip Technology (formerly Atmel) is an 8-Kbit SPI serial EEPROM organized as 1024 × 8-bit memory, supporting 1.8V to 5.5V operation, 20 MHz clock rate at 5V, 32-byte page write, and automotive-grade industrial temperature range (−40°C to +85°C). It serves as nonvolatile configuration storage in microcontroller-based sensor nodes and power management modules.
For engineers reviewing the AT25080AY1-10YI-1.8 datasheet, AT25080AY1-10YI-1.8 pinout, AT25080AY1-10YI-1.8 application, or AT25080AY1-10YI-1.8 equivalent, key selection criteria include low-voltage compatibility (1.8V min), MAP package footprint, block write protection granularity, HOLD/CS timing behavior, and endurance under extended temperature cycling.
Technical Context
The AT25080AY1-10YI-1.8 implements a synchronous SPI slave interface compliant with Modes 0 and 3, using separate SI/SO lines and requiring WREN before WRITE. Its internal architecture includes a nonvolatile status register with BP0/BP1 for 1/4, 1/2, or full array protection and WPEN bit enabling hardware write protection via the WP pin.
It features self-timed 5 ms max write cycles, no erase prerequisite, and supports continuous read with automatic address increment. The device operates across VCC = 1.8V–5.5V with standby current <0.1 µA at 1.8V and maintains full AC timing compliance (e.g., tWH/tWL = 80 ns min at 1.8V) over −40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8-bit array), sufficient for firmware parameter tables or calibration data in compact embedded systems. |
| Supply Voltage | 1.8V to 5.5V - enables direct interfacing with 1.8V logic families and mixed-voltage MCU I/O without level shifters. |
| Max Clock Rate | 20 MHz at 5V - supports high-throughput configuration loading in boot-time critical applications. |
| Page Write Size | 32 bytes - optimizes write efficiency for burst updates while minimizing bus occupation time. |
| Endurance | 1 million write cycles - ensures reliable field recalibration or logging over 10+ years of daily use. |
| Data Retention | 100 years - guarantees long-term integrity of stored calibration coefficients or security keys without refresh. |
| Operating Temp | −40°C to +85°C - validated for industrial control panels and automotive body electronics environments. |
| Write Cycle Time | 5 ms maximum - enables deterministic timeout handling in real-time firmware without polling overhead. |
Pinout & Package
AT25080AY1-10YI-1.8 uses an 8-lead Miniature Array Package (MAP), 4.90 mm × 3.00 mm body, non-leaded, dual footprint compatible with SOIC/TSSOP layouts. Pin 1 index area located at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must be held low for entire SPI transaction; controls SO output state (high-Z when high). |
| SCK | Serial Clock | Master-generated clock; timing-critical input; requires tWH/tWL ≥80 ns at 1.8V for reliable sampling. |
| SI | Serial Data Input | Receives op-codes, addresses, and data; MSB-first; ignored during HOLD or when CS is high. |
| SO | Serial Data Output | Drives read data; high-impedance when CS high or during HOLD; VOL ≤0.2V at 0.15 mA (1.8V). |
| GND | Ground Reference | Signal and power return; must be low-impedance path to minimize noise coupling into SPI signals. |
| VCC | Power Supply | 1.8V–5.5V supply; decoupling capacitor (0.1 µF) required within 5 mm for stable read/write margins. |
| WP | Write Protect | Hardware lock for status register and protected 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 |
|---|---|
| 1.8V–5.5V Operation | Eliminates need for external voltage translators when interfacing with ultra-low-power MCUs (e.g., ARM Cortex-M0+). |
| Block Write Protection | Configurable 1/4, 1/2, or full array lock via status register bits BP0/BP1 - prevents accidental overwrite of critical firmware parameters. |
| 32-byte Page Write | Reduces average write latency by 75% vs. byte-write mode - essential for fast factory programming or field OTA updates. |
| HOLD Pin Functionality | Enables multi-master arbitration or CPU context switching without losing SPI state - avoids reinitialization delays. |
| Automotive-Grade Qualification | Validated per AEC-Q100 stress tests - suitable for engine control units, ADAS sensors, and infotainment backup storage. |
| Self-Timed Write Cycle | Removes requirement for external write-complete polling or timer interrupts - simplifies firmware driver design. |
Applications
| Industrial Sensor Calibration | Medical Device Configuration |
|---|---|
|
Use Scenario: Storing temperature-compensated offset/gain coefficients for analog front-end sensors in factory-calibrated pressure transducers. IC Role / Device Role / Timing Role: Nonvolatile parameter repository accessed during power-up initialization; read-only after calibration. Use Value: Enables single-point calibration at end-of-line test with guaranteed 100-year retention - eliminates recalibration labor and field drift risk. |
Use Scenario: Holding user-selectable therapy modes, alarm thresholds, and audit logs in portable infusion pumps. IC Role / Device Role / Timing Role: Secure configuration store with WP-enabled protection against runtime corruption during battery swaps. Use Value: Meets IEC 62304 Class C software requirements via hardware-enforced write lock on safety-critical settings. |
| Automotive Body Control Module | Smart Energy Metering |
|
Use Scenario: Saving window position memory, seat preset positions, and lighting profiles in vehicle door modules. IC Role / Device Role / Timing Role: Low-power EEPROM interfaced directly to 1.8V CAN controller MCU GPIOs. Use Value: Operates reliably at −40°C cold soak and 85°C under-hood ambient - supports ASIL-B functional safety goals. |
Use Scenario: Recording tariff schedules, tamper events, and metering history in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: High-endurance storage for daily log entries written every 15 minutes over 15-year service life. Use Value: 1M write cycles ensure >50 years of logging at 15-min intervals - exceeds ANSI C12.20 lifetime requirements. |
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; same 1.8V–5.5V range but 10 MHz max clock at 1.8V (vs. 5 MHz for AT25080AY1-10YI-1.8); TSSOP8 package only. | Lacks HOLD pin and MAP package option - unsuitable for space-constrained designs requiring dual-footprint compatibility. | Select when legacy ST ecosystem integration is prioritized and MAP footprint is not required. |
| BR24G08NUX-10 | Rohm 8-Kbit SPI EEPROM; supports 1.7V–5.5V, 20 MHz at 5V, but only JEDEC SOIC8 package; no WP/HOLD pins - relies solely on software protection. | No hardware write protection or suspend capability - increases firmware complexity for safety-critical writes. | Choose for cost-sensitive consumer applications where hardware protection and HOLD are nonessential. |
Compared with M95080-DRMN6TP/K and BR24G08NUX-10, AT25080AY1-10YI-1.8 uniquely combines MAP packaging, HOLD functionality, and configurable block protection - making it optimal for miniaturized industrial controllers requiring robust, low-voltage, and interruptible EEPROM access.
Availability
AT25080AY1-10YI-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 temperature and low-voltage operating conditions.
Supply support for AT25080AY1-10YI-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 qualification expertise.
AT25080AY1-10YI-1.8 belongs to Microchip's legacy Atmel SPI EEPROM product line, engineered for robust nonvolatile storage in resource-constrained, low-power, and extended-temperature embedded systems.
FAQ
What is the minimum supply voltage supported by the AT25080AY1-10YI-1.8?
The AT25080AY1-10YI-1.8 supports a minimum supply voltage of 1.8V across its full industrial temperature range (−40°C to +85°C), enabling direct connection to 1.8V I/O domains without level-shifting circuitry. This is confirmed in the DC Characteristics table under VCC1 specification, with full AC timing compliance (e.g., 5 MHz SCK max) maintained at 1.8V.
Does the AT25080AY1-10YI-1.8 support hardware write protection independent of software commands?
Yes, the AT25080AY1-10YI-1.8 supports hardware write protection via the WP pin when the WPEN bit in the status register is set to "1". With WP held low and WPEN=1, writes to the status register and block-protected memory segments are disabled - even if WREN is issued. This hardware lock remains active regardless of SPI command state.
What package type does the AT25080AY1-10YI-1.8 use, and is it footprint-compatible with other common packages?
The AT25080AY1-10YI-1.8 uses an 8-lead Miniature Array Package (MAP) with 4.90 mm × 3.00 mm body and non-leaded terminals. Per Microchip's ordering information, the "8Y1" package code denotes dual footprint compatibility - meaning PCB land patterns can accommodate both MAP and standard SOIC8/TSSOP8 variants without redesign.
How does the HOLD pin function during an active SPI transaction on the AT25080AY1-10YI-1.8?
The HOLD pin on the AT25080AY1-10YI-1.8 suspends serial communication without resetting the internal state: when asserted low while SCK is low, SO enters high-impedance and SI inputs are ignored; resuming requires bringing HOLD high while SCK remains low. This preserves address/data counters and enables CPU context switches or multi-master arbitration.
What is the maximum write endurance and data retention specification for the AT25080AY1-10YI-1.8?
The AT25080AY1-10YI-1.8 is rated for 1 million write cycles and 100 years of data retention at +25°C, with retention validated across its full operating temperature range. These values are specified in the Features section and confirmed in the Endurance and Data Retention rows of the Absolute Maximum Ratings table.
AT25080AY1-10YI-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MAP (3x4.9)
AT25080AY1-10YI-1.8 FAQ
1.How can I place an order for AT25080AY1-10YI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080AY1-10YI-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 AT25080AY1-10YI-1.8 reliable?
The price and inventory of AT25080AY1-10YI-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 AT25080AY1-10YI-1.8 is usually 5 days.
3.What payment methods are accepted for AT25080AY1-10YI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080AY1-10YI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080AY1-10YI-1.8?
AT25080AY1-10YI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080AY1-10YI-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 AT25080AY1-10YI-1.8?
For technical support, including AT25080AY1-10YI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080AY1-10YI-1.8 requirements.
6.How does Aetrix verify that AT25080AY1-10YI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT25080AY1-10YI-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 AT25080AY1-10YI-1.8 meets industry standards.
7.What is the process for return or replacement of AT25080AY1-10YI-1.8?
All AT25080AY1-10YI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT25080AY1-10YI-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 AT25080AY1-10YI-1.8 part is unused and in its original packaging.
Return procedure for AT25080AY1-10YI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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