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Microchip Technology AT25080AY1-10YI-2.7
- Part No.:
- AT25080AY1-10YI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
AT25080AY1-10YI-2.7.pdf
- Description:
- IC EEPROM 8KBIT SPI 20MHZ 8MAP
- Quantity:
- Payment:
- Shipping:
Inventory:3,395
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Product details
Overview
AT25080AY1-10YI-2.7 from Microchip Technology (formerly Atmel) is an 8-Kbit SPI serial EEPROM organized as 1024 × 8-bit memory, operating from 2.7V to 5.5V, supporting 20 MHz clock rate at 5V, with 32-byte page write and block write protection. It serves as nonvolatile configuration storage in automotive body control modules requiring AEC-Q100-compliant data retention.
For engineers reviewing the AT25080AY1-10YI-2.7 datasheet, AT25080AY1-10YI-2.7 pinout, AT25080AY1-10YI-2.7 application, or AT25080AY1-10YI-2.7 equivalent, key selection criteria include industrial temperature range (−40°C to +85°C), MAP package footprint compatibility, hardware/software write protection, self-timed 5 ms max write cycle, and SPI Mode 0/3 interoperability with microcontrollers.
Technical Context
The AT25080AY1-10YI-2.7 implements a synchronous slave SPI interface with dedicated SI/SO pins, CS-driven selection, and HOLD pin for pausing serial transfers without resetting sequence state. Its status register controls BP0/BP1 for 1/4, 1/2, or full array write protection and WPEN for hardware write protect enable/disable.
It requires explicit WREN instruction before WRITE or WRSR operations, supports MSB-first transmission, and returns SO to high-impedance when deselected. Internal address auto-increment enables continuous read across memory space, while page write limits data bursts to 32 bytes per CS high transition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8-bit array), sufficient for firmware boot parameters or calibration tables |
| Supply Voltage | 2.7V to 5.5V - compatible with 3.3V and 5V logic domains without level shifting |
| Max Clock Rate | 20 MHz at VCC = 5V - enables fast configuration loading in time-critical boot sequences |
| Write Cycle Time | 5 ms maximum - deterministic timing for system-level timeout handling during programming |
| Endurance | 1 million write cycles - supports frequent field-updatable settings in industrial controllers |
| Data Retention | 100 years at 25°C - ensures long-term reliability in unattended embedded deployments |
| Operating Temp | −40°C to +85°C - qualified for under-hood and industrial ambient environments |
Pinout & Package
AT25080AY1-10YI-2.7 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/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; initiates SPI command sequence and determines device ownership on shared bus |
| SCK | Serial Clock | Input-only master-generated clock; defines timing for SI sampling and SO output edges |
| SI | Serial Data Input | Receives op-codes, addresses, and write data; ignored during HOLD or when CS is high |
| SO | Serial Data Output | Drives read data or status bits; tri-states when CS high or during internal write cycle |
| GND | Ground Reference | Return path for all I/O and supply currents; must be low-impedance for noise immunity |
| VCC | Power Supply | Single 2.7–5.5V rail powers logic and memory array; no separate VPP required |
| WP | Write Protect | Hardware lock for status register writes when WPEN=1; prevents accidental reconfiguration |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without losing byte count or address state; requires SCK low to assert |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Support | Interoperates with legacy 68HC11 and modern ARM Cortex-M SPI peripherals without mode reconfiguration |
| 32-byte Page Write | Optimizes write throughput by reducing CS toggling overhead; avoids partial-page corruption on power loss |
| Block Write Protection | Configurable 1/4, 1/2, or full-array lock via status register - isolates critical calibration data from application updates |
| Self-timed Write Cycle | No external timing control needed; internal state machine manages erase/write/verify - simplifies host firmware |
| Automotive Grade | AEC-Q100 stress-tested and lead-free/halogen-free - suitable for Tier-1 automotive electronics |
Applications
| Infotainment System Configuration Storage | Engine Control Unit (ECU) Calibration Data |
|---|---|
Use Scenario: Storing user preferences (display brightness, audio EQ, language) and factory-set infotainment firmware parameters. IC Role / Device Role / Timing Role: Nonvolatile SPI slave storing persistent configuration; accessed during boot and runtime via SPI Mode 0 at ≤10 MHz. Use Value: Enables zero-latency resume after power cycling and supports over-the-air update rollback using protected memory blocks. | Use Scenario: Holding engine trim values, fuel map offsets, and emission control thresholds updated during dealer service or adaptive learning. IC Role / Device Role / Timing Role: Secure, write-protected EEPROM interfaced to ECU MCU via isolated SPI bus; accessed only during maintenance mode. Use Value: Prevents unauthorized modification via WP pin hardwiring and BP1/BP0 status register locking of critical calibration sectors. |
| Industrial PLC I/O Module Settings | Automotive Body Control Module (BCM) |
Use Scenario: Retaining analog input scaling factors, digital I/O debounce timers, and network node IDs across power cycles in programmable logic controllers. IC Role / Device Role / Timing Role: Low-power SPI EEPROM operating at 3.3V; read during initialization and written only during commissioning via secure bootloader. Use Value: 100-year data retention ensures parameter integrity over 15+ year equipment lifespans without battery backup. | Use Scenario: Storing door lock logic states, window position memories, and lighting fade profiles in vehicle body domain controllers. IC Role / Device Role / Timing Role: Automotive-grade SPI EEPROM with −40°C to +85°C operation; accessed during wake-up sequence via SPI Mode 3. Use Value: MAP package enables compact PCB layout; 1M endurance supports daily reprogramming during vehicle personalization routines. |
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 2.7–5.5V range, 20 MHz max, but uses standard SOIC-8 (8S1) not MAP | Requires PCB layout change due to different footprint; lacks HOLD pin functionality | Select if SOIC-8 compatibility is prioritized over space-constrained designs and HOLD is unused |
| BR24G08NUX-10 | Rohm 8-Kbit SPI EEPROM; supports 1.7–5.5V, includes built-in write protection timer, but rated only to +105°C | Not qualified for full automotive temperature range; no WPEN bit - hardware protection less flexible | Select for cost-sensitive consumer applications where extended temp range is unnecessary |
Compared with M95080-DRMN6TP/K and BR24G08NUX-10, AT25080AY1-10YI-2.7 uniquely combines MAP packaging for space efficiency, HOLD pin for robust bus arbitration, and full −40°C to +85°C automotive qualification with configurable block protection - making it optimal for next-generation compact automotive and industrial controllers.
Availability
AT25080AY1-10YI-2.7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O configuration, infotainment system parameter storage, and engine ECU calibration data retention requiring stable component supply across multi-year production cycles.
Supply support for AT25080AY1-10YI-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 is a global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with broad industrial and automotive certification coverage.
The AT25080AY1-10YI-2.7 belongs to Microchip's legacy Atmel SPI EEPROM product line, designed specifically for reliable, low-voltage nonvolatile storage in space-constrained and thermally demanding embedded systems.
FAQ
What is the operating voltage range for the AT25080AY1-10YI-2.7?
The AT25080AY1-10YI-2.7 operates from 2.7V to 5.5V DC. This dual-voltage capability allows direct integration into both 3.3V and 5V systems without external regulators or level shifters, and is explicitly validated for performance across this full range per its DC characteristics table.
Does the AT25080AY1-10YI-2.7 support SPI Mode 0 and Mode 3 exclusively?
Yes, the AT25080AY1-10YI-2.7 supports only SPI Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1). It does not support Mode 1 or Mode 2. This is confirmed in the Features section and functional description, where clock polarity and phase requirements are strictly defined for reliable communication with MCUs like the 68HC11.
How does the HOLD pin function on the AT25080AY1-10YI-2.7 during an active SPI transaction?
The HOLD pin on the AT25080AY1-10YI-2.7 suspends serial communication while preserving the current address and byte count state. To activate HOLD, the pin must be driven low while SCK is low; resuming requires bringing HOLD high while SCK remains low. During HOLD, SI inputs are ignored and SO enters high-impedance - enabling master MCU to service higher-priority interrupts without losing transaction context.
What memory organization does the AT25080AY1-10YI-2.7 use, and how is addressing implemented?
The AT25080AY1-10YI-2.7 organizes its 8 Kbit capacity as 1024 words of 8 bits each (1024 × 8). Addressing uses A9–A0 (10-bit address space), with higher-order bits (A15–A10) marked "Don't Care" in Table 6. During READ or WRITE, the master transmits the full 16-bit address frame, but only the lower 10 bits are decoded - enabling seamless rollover and continuous sequential access.
Is the AT25080AY1-10YI-2.7 qualified for automotive applications, and what evidence supports this?
Yes, the AT25080AY1-10YI-2.7 is automotive-grade, explicitly stated in the Features section as "Automotive Grade, Extended Temperature and Lead-free/Halogen-free Devices Available." Its ordering code suffix "-10YI-2.7" denotes Industrial Temperature (−40°C to +85°C), and the device meets AEC-Q100 stress testing requirements per Microchip's qualification documentation for the AT25xxxA family.
AT25080AY1-10YI-2.7 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:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MAP (3x4.9)
AT25080AY1-10YI-2.7 FAQ
1.How can I place an order for AT25080AY1-10YI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080AY1-10YI-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 AT25080AY1-10YI-2.7 reliable?
The price and inventory of AT25080AY1-10YI-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 AT25080AY1-10YI-2.7 is usually 5 days.
3.What payment methods are accepted for AT25080AY1-10YI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080AY1-10YI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080AY1-10YI-2.7?
AT25080AY1-10YI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080AY1-10YI-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 AT25080AY1-10YI-2.7?
For technical support, including AT25080AY1-10YI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080AY1-10YI-2.7 requirements.
6.How does Aetrix verify that AT25080AY1-10YI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25080AY1-10YI-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 AT25080AY1-10YI-2.7 meets industry standards.
7.What is the process for return or replacement of AT25080AY1-10YI-2.7?
All AT25080AY1-10YI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25080AY1-10YI-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 AT25080AY1-10YI-2.7 part is unused and in its original packaging.
Return procedure for AT25080AY1-10YI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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