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Microchip Technology AT25160AY6-10YH-1.8
- Part No.:
- AT25160AY6-10YH-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
AT25160AY6-10YH-1.8.pdf
- Description:
- IC EEPROM 16KBIT SPI 8MINI MAP
- Quantity:
- Payment:
- Shipping:
Inventory:3,533
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Product details
Overview
AT25160AY6-10YH-1.8 from Microchip Technology (formerly Atmel) is a 16-Kbit SPI serial EEPROM organized as 2048 × 8 bits, operating from 1.8 V to 5.5 V, supporting 20 MHz clock rate at 5 V, featuring 32-byte page write and hardware/software write protection. It serves as nonvolatile configuration storage in industrial control modules requiring low-voltage operation and automotive-grade reliability.
For engineers reviewing the AT25160AY6-10YH-1.8 datasheet, AT25160AY6-10YH-1.8 pinout, AT25160AY6-10YH-1.8 application, or AT25160AY6-10YH-1.8 equivalent, key selection considerations include 1.8 V minimum supply, MLP 2×3 mm (8Y6) ultra-thin DFN package, SPI Mode 0/3 compatibility, block write protection granularity, and 1 million write cycle endurance.
Technical Context
The AT25160AY6-10YH-1.8 implements a synchronous SPI slave interface with dedicated SI/SO pins, CS-controlled selection, and HOLD pin for communication suspension without sequence reset. Its status register controls BP0/BP1 for 0%, 25%, 50%, or 100% array protection and WPEN for hardware write protect enable/disable.
It uses self-timed internal write cycles (≤5 ms), requires WREN before WRITE/WRSR, and supports MSB-first transmission of op-codes, addresses, and data. The device powers up in write-disabled state and maintains RDY/BUSY flag (bit 0 of status register) during programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 words × 8 bits); sufficient for firmware parameter tables or calibration data in space-constrained embedded systems. |
| Supply Voltage Range | 1.8 V to 5.5 V; enables direct interfacing with 1.8 V, 2.7 V, 3.3 V, and 5 V microcontrollers without level shifting. |
| Max Clock Frequency | 20 MHz at VCC = 5 V; supports high-throughput configuration reads in real-time control loops. |
| Page Write Size | 32 bytes; minimizes write latency versus byte-write EEPROMs while avoiding overwriting adjacent data in single-page operations. |
| Write Endurance | 1 million cycles; ensures reliable logging or counter updates over 10+ years in industrial monitoring applications. |
| Data Retention | 100 years at +25 °C; guarantees long-term integrity of factory-set calibration coefficients or security keys. |
| Operating Temperature | –40 °C to +85 °C; qualified for under-hood automotive sensors and industrial PLC I/O modules. |
Pinout & Package
AT25160AY6-10YH-1.8 is packaged in an 8-lead Ultra Thin Mini-MAP (MLP 2×3 mm, DFN), RoHS-compliant with NiPdAu lead finish (suffix "H"), measuring 2.00 mm × 3.00 mm × 0.60 mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must be low to accept SI data and drive SO; high-Z SO when high. |
| SCK | Serial Clock | Input-only master-generated clock; defines timing for SI sampling and SO output (Mode 0: idle low, sample on rising edge). |
| SI | Serial Data Input | Accepts op-code, address, and data; ignored during HOLD or when CS is high. |
| SO | Serial Data Output | Drives read data or status register bits; enters high-Z state when CS high or HOLD active. |
| GND | Ground Reference | Return path for VCC and all I/O; requires low-impedance PCB plane connection for noise immunity. |
| VCC | Power Supply | 1.8–5.5 V input; decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin. |
| WP | Write Protect | Hardware lock: disables status register writes when WP = low and WPEN = 1; no effect if WPEN = 0. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer (e.g., mid-read) without resetting address counter; resumes on rising edge while SCK low. |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Support | Interoperates with legacy 68HC11 and modern ARM Cortex-M SPI peripherals without protocol translation. |
| Block Write Protection | Four protection levels (none, 25%, 50%, 100%) configurable via nonvolatile BP0/BP1 bits-prevents accidental overwrite of critical boot parameters. |
| Hardware + Software Write Protection | WP pin + WRSR instruction provide dual-layer defense: physical strap for field units and firmware-controlled lock for dynamic segments. |
| 32-Byte Page Write | Reduces average write time by 97% vs. byte-write; enables efficient storage of sensor calibration matrices (e.g., 4×4 gain/offset tables). |
| Self-Timed Write Cycle | No external delay needed; RDSR polling confirms completion, simplifying host firmware and eliminating fixed timeout overhead. |
Applications
| Industrial PLC Configuration Storage | Automotive Sensor Calibration Memory |
|---|---|
|
Use Scenario: Storing I/O mapping, PID tuning constants, and alarm thresholds in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Nonvolatile configuration EEPROM interfaced to ARM-based PLC CPU via SPI bus; accessed during boot and runtime parameter updates. Use Value: 1.8 V operation allows direct connection to 1.8 V FPGA I/O banks; 100-year retention ensures calibration survives 15-year equipment lifecycle without refresh. |
Use Scenario: Holding temperature-compensated offset/gain coefficients for MEMS pressure sensors in engine control units (ECUs). IC Role / Device Role / Timing Role: SPI EEPROM storing sensor-specific calibration data written once during end-of-line test and read at startup. Use Value: Block protection prevents ECU firmware from corrupting calibration blocks during over-the-air updates; –40 °C to +85 °C rating matches under-hood thermal profile. |
| Medical Device Parameter Backup | Smart Meter Firmware Settings |
|
Use Scenario: Preserving user-configurable therapy parameters (e.g., infusion rate limits, alarm volumes) in portable insulin pumps. IC Role / Device Role / Timing Role: Low-power serial EEPROM retaining settings across battery swaps and power cycles; accessed via MSP430 SPI interface. Use Value: 0.1 µA standby current at 1.8 V extends battery life; 2.0 × 3.0 mm MLP package fits within tight PCB area budgets of handheld devices. |
Use Scenario: Storing tariff schedules, meter ID, and communication credentials in ANSI C12.19-compliant electricity meters. IC Role / Device Role / Timing Role: Secure configuration store interfaced to metering SoC; write-protected sections prevent tampering with billing parameters. Use Value: Hardware WP pin tied to secure microcontroller GPIO enables cryptographic write-lock; 1M endurance supports daily firmware update logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95160-DRMN6TP/K | 16 Kbit SPI EEPROM, 1.8–5.5 V, 20 MHz, TSSOP8 package (4.4 × 3.0 mm), same pinout but larger footprint than AT25160AY6-10YH-1.8's 2.0 × 3.0 mm MLP. | Preferred where board rework for TSSOP is acceptable; lacks HOLD pin-requires software-managed transaction interruption. | Select when existing layout accommodates TSSOP and HOLD functionality is not required. |
| BR24G16NUX-10 | 16 Kbit I²C EEPROM, 1.7–5.5 V, 1 MHz max, 2.0 × 2.5 mm USON8 package; uses two-wire interface instead of SPI, no WP/HOLD pins. | Suitable for designs with I²C bus availability and lower bandwidth needs; no hardware write protection-relies solely on software locks. | Choose for cost-sensitive consumer electronics where I²C is already present and 20 MHz SPI speed is unnecessary. |
Compared with M95160-DRMN6TP/K and BR24G16NUX-10, AT25160AY6-10YH-1.8 uniquely combines ultra-compact MLP packaging, SPI Mode 0/3 flexibility, HOLD pin for deterministic bus arbitration, and dual hardware/software write protection-making it optimal for space-constrained, high-reliability industrial and automotive nodes.
Availability
AT25160AY6-10YH-1.8 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ECUs, medical infusion pumps, and smart meters requiring stable component supply across extended product lifecycles.
Supply support for AT25160AY6-10YH-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 acquired Atmel in 2016 and continues to manufacture and support the AT25xxx family of serial EEPROMs with full datasheet compliance and long-term availability commitments.
The AT25160A series was designed for robust nonvolatile storage in resource-constrained embedded systems, emphasizing low-voltage operation, SPI interoperability, and hardware-assisted data integrity for industrial and automotive applications.
FAQ
What is the package type and dimensions of AT25160AY6-10YH-1.8?
AT25160AY6-10YH-1.8 uses an 8-lead Ultra Thin Mini-MAP (MLP) package, also known as DFN, with body dimensions of 2.00 mm × 3.00 mm and maximum height of 0.60 mm. It features a 0.50 mm pitch, NiPdAu lead finish (denoted by "H"), and RoHS-compliant green construction. This compact footprint is ideal for dense PCB layouts in portable and automotive electronics.
Does AT25160AY6-10YH-1.8 support both SPI Mode 0 and Mode 3, and how is mode selection handled?
Yes, AT25160AY6-10YH-1.8 supports both SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1), as explicitly stated in its datasheet features. Mode selection is determined entirely by the host controller's SPI peripheral configuration-no internal register setting or external pin is required. The device operates as a pure slave and adapts to the master's clock polarity and phase.
How does the write protection mechanism work on AT25160AY6-10YH-1.8?
AT25160AY6-10YH-1.8 implements dual-layer write protection: software-controlled via BP0/BP1 bits in the status register (enabling 0%, 25%, 50%, or 100% array lock), and hardware-enforced via the WP pin when WPEN = 1. If WP is pulled low and WPEN is set, all status register writes-including BP bit changes-are blocked, preventing accidental corruption of protected regions during field operation.
What is the maximum clock frequency supported by AT25160AY6-10YH-1.8 at 1.8 V supply?
At VCC = 1.8 V, AT25160AY6-10YH-1.8 supports a maximum SCK frequency of 5 MHz, as specified in Table 1-3 of the datasheet under the "1.8–5.5 V" voltage column. This is derated from the 20 MHz maximum achievable at 5 V, ensuring timing margins for setup/hold and propagation delays across process/voltage/temperature corners.
Can AT25160AY6-10YH-1.8 be used in automotive applications, and what qualification does it meet?
Yes, AT25160AY6-10YH-1.8 is qualified for automotive use with an operating temperature range of –40 °C to +85 °C and is listed in Atmel's automotive-grade ordering information. While not AEC-Q100 certified as a standalone part, its specification alignment with automotive environmental stress requirements and inclusion in automotive reference designs confirm suitability for non-safety-critical ECU subsystems like sensor calibration storage.
AT25160AY6-10YH-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 16Kbit
- Memory Organization:
- 2K 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-Mini Map (2x3)
AT25160AY6-10YH-1.8 FAQ
1.How can I place an order for AT25160AY6-10YH-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25160AY6-10YH-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 AT25160AY6-10YH-1.8 reliable?
The price and inventory of AT25160AY6-10YH-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 AT25160AY6-10YH-1.8 is usually 5 days.
3.What payment methods are accepted for AT25160AY6-10YH-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25160AY6-10YH-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25160AY6-10YH-1.8?
AT25160AY6-10YH-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25160AY6-10YH-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 AT25160AY6-10YH-1.8?
For technical support, including AT25160AY6-10YH-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25160AY6-10YH-1.8 requirements.
6.How does Aetrix verify that AT25160AY6-10YH-1.8 is sourced from the original manufacturer or authorized distributors?
All AT25160AY6-10YH-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 AT25160AY6-10YH-1.8 meets industry standards.
7.What is the process for return or replacement of AT25160AY6-10YH-1.8?
All AT25160AY6-10YH-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT25160AY6-10YH-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 AT25160AY6-10YH-1.8 part is unused and in its original packaging.
Return procedure for AT25160AY6-10YH-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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