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Microchip Technology AT25160AN-10SU-1.8-T
- Part No.:
- AT25160AN-10SU-1.8-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25160AN-10SU-1.8-T.pdf
- Description:
- IC EEPROM 16KBIT SPI 20MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,657
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Product details
Overview
AT25160AN-10SU-1.8-T from Microchip Technology (formerly Atmel) is a 16-Kbit SPI serial EEPROM organized as 2048 × 8 bits, supporting 1.8V to 5.5V operation, 20 MHz clock rate at 5V, 32-byte page write, and hardware/software write protection. It serves as nonvolatile configuration storage in industrial controllers, IoT sensor nodes, and power management units requiring low-voltage reliability.
For engineers reviewing the AT25160AN-10SU-1.8-T datasheet, AT25160AN-10SU-1.8-T pinout, AT25160AN-10SU-1.8-T application, or AT25160AN-10SU-1.8-T equivalent, key selection criteria include VCC range (1.8–5.5 V), page write capability (32 bytes), endurance (1 million cycles), data retention (100 years), and SPI Mode 0/3 compatibility with HOLD and WP pins for system-level data integrity.
Technical Context
The AT25160AN-10SU-1.8-T operates as an SPI slave device with dedicated SI/SO lines, CS-controlled selection, and synchronous serial interface compliant with Modes 0 and 3. Its internal architecture includes an 8-bit instruction register, nonvolatile status register (BP0/BP1/WPEN), and automatic address incrementing during page writes.
It implements dual-layer data protection: hardware via the WP pin (when WPEN = 1) and software via WRSR-configurable block protection (1/4, 1/2, or full array), plus WREN/WRDI instructions for precise write enable/disable control independent of WP state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8), sufficient for firmware boot parameters, calibration tables, or device ID storage in space-constrained designs. |
| Supply Voltage | 1.8 V to 5.5 V - enables direct interfacing with 1.8V logic, mixed-voltage systems, and legacy 3.3V/5V microcontrollers without level shifters. |
| Max Clock Rate | 20 MHz at VCC = 5V - supports high-throughput configuration loading in real-time embedded applications. |
| Page Write Size | 32 bytes - balances programming speed and wear leveling efficiency; avoids excessive erase/write cycles per update. |
| Endurance | 1 million write cycles - ensures >10 years of daily reconfiguration in industrial logging or adaptive control systems. |
| Data Retention | 100 years at 25°C - guarantees long-term validity of stored calibration coefficients or security keys across product lifecycles. |
| Write Cycle Time | 5 ms max - defines minimum interval between successive page writes; critical for deterministic timing in time-critical firmware updates. |
Pinout & Package
AT25160AN-10SU-1.8-T is supplied in an 8-lead JEDEC SOIC (8S1) package, 0.150" wide, RoHS-compliant, green finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must be held low for entire SPI transaction; controls SO output impedance (high-Z when high). |
| SCK | Serial Clock | Master-generated clock; synchronizes SI input and SO output; supports modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1). |
| 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; tri-stated when CS is high or HOLD is active; valid within tV after SCK edge. |
| GND | Ground Reference | Return path for VCC and all I/O; requires low-impedance PCB connection to minimize noise coupling into SPI signals. |
| VCC | Power Supply | Single supply input (1.8–5.5 V); decoupling capacitor (0.1 µF) required near pin for stable read/write operation. |
| WP | Write Protect | Hardware lock for status register and protected memory blocks when WPEN=1; tied low for permanent protection in field-deployed units. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting sequence; used to service higher-priority interrupts while preserving address/data context. |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Support | Interoperability with diverse host MCUs (e.g., ARM Cortex-M, PIC, MSP430) without protocol translation or glue logic. |
| 32-byte Page Write | Reduces total write time by 32× vs. byte-write; minimizes bus occupancy and improves system responsiveness during configuration updates. |
| Block Write Protection | Configurable 1/4, 1/2, or full-array lock via status register - prevents accidental overwrite of critical bootloader or security sectors. |
| WP Pin + Software Disable | Dual-mechanism protection: hardware (WP pin) secures status register; WRDI instruction disables writes regardless of WP state. |
| Self-timed Write Cycle | No external timing control needed; internal state machine handles erase/write/verify - simplifies firmware driver development. |
Applications
| Industrial PLC Configuration Storage | IoT Edge Sensor Calibration Memory |
|---|---|
Use Scenario: Storing I/O mapping tables, PID tuning parameters, and alarm thresholds in programmable logic controllers operating across –40°C to +85°C. IC Role / Device Role / Timing Role: Nonvolatile configuration EEPROM interfaced to ARM-based PLC CPU via SPI; accessed during boot and runtime parameter adjustment. Use Value: 1.8V operation enables direct connection to low-power MCU cores; 1M endurance supports decades of field recalibration without replacement. | Use Scenario: Retaining factory-calibrated temperature/humidity offset values and unique device identifiers in battery-powered environmental sensors. IC Role / Device Role / Timing Role: SPI EEPROM holding immutable calibration data; read once at startup and cached in RAM for low-power operation. Use Value: 100-year data retention ensures calibration validity over full product lifecycle; 32-byte page write minimizes active time during over-the-air updates. |
| Medical Device Parameter Backup | Automotive Body Control Module NVM |
Use Scenario: Safeguarding user-adjustable therapy settings and usage logs in portable diagnostic equipment with strict regulatory traceability requirements. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage element; WP pin hardwired to prevent unauthorized modification during service. Use Value: Hardware write protection (WPEN+WP) meets IEC 62304 data integrity mandates; 5 ms write cycle enables fast save-on-exit functionality. | Use Scenario: Storing seat position presets, mirror angles, and lighting profiles in automotive BCMs where EEPROM must survive load dump and cold crank conditions. IC Role / Device Role / Timing Role: Robust serial NVM interfaced to 8-bit automotive MCU; withstands extended temperature cycling and ESD events per ISO 10605. Use Value: Qualified for automotive use (–40°C to +125°C operating range per Absolute Max Ratings); 1.8V support allows integration with advanced low-voltage power domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95160-DRMN3TP/K | STMicroelectronics 16-Kbit SPI EEPROM; identical 8-lead SOIC package, 1.8–5.5 V, 20 MHz, but uses different status register bit layout and lacks HOLD pin. | Supports same industrial temperature range but no HOLD function - unsuitable for interrupt-driven multi-tasking hosts. | Select when HOLD is unused and ST's qualification ecosystem (e.g., AEC-Q100) is preferred over Microchip's automotive roadmap. |
| BR24G16FJ-3GE2 | Rohm 16-Kbit SPI EEPROM; 1.7–5.5 V supply, 10 MHz max clock, 16-byte page size, integrated write protect via WP pin only (no status register BP bits). | Limited to 10 MHz and smaller page size reduces throughput; no software-configurable block protection - less flexible for partitioned memory schemes. | Choose for cost-sensitive consumer applications where full 20 MHz and granular protection are unnecessary. |
Compared with M95160-DRMN3TP/K and BR24G16FJ-3GE2, the AT25160AN-10SU-1.8-T offers superior real-time control via HOLD, finer 32-byte page granularity, and flexible BP0/BP1-based memory segmentation - making it optimal for deterministic industrial and automotive firmware storage.
Availability
AT25160AN-10SU-1.8-T is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, automotive body electronics, and IoT edge node designs requiring stable component supply, long-term obsolescence management, and RoHS-compliant sourcing.
Supply support for AT25160AN-10SU-1.8-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 leader in microcontroller, analog, FPGA, and memory solutions, delivering scalable, secure, and energy-efficient semiconductor products for embedded control and connectivity.
The AT25160AN-10SU-1.8-T belongs to Microchip's AT25xxxA SPI EEPROM family, engineered for robust nonvolatile data storage in harsh environments - emphasizing low-voltage operation, high endurance, and system-level data integrity features like HOLD and configurable block protection.
FAQ
What voltage range does the AT25160AN-10SU-1.8-T support, and how does it affect system design?
The AT25160AN-10SU-1.8-T supports 1.8 V to 5.5 V operation, enabling direct interface with 1.8V, 2.5V, 3.3V, and 5V logic families without level-shifting circuitry. This simplifies power domain integration in mixed-signal systems and reduces BOM count. Its guaranteed functionality down to 1.8V makes it ideal for battery-powered devices where supply voltage may sag during discharge cycles - the AT25160AN-10SU-1.8-T remains fully operational and retains data integrity throughout that range.
Does the AT25160AN-10SU-1.8-T support both SPI Mode 0 and Mode 3, and how is mode selection handled?
Yes, the AT25160AN-10SU-1.8-T supports both SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1), as confirmed in its datasheet Features section. Mode selection is determined solely by the host controller's clock polarity and phase configuration - no internal register setting or command is required. The device automatically adapts to either mode based on SCK idle state and sampling edge, ensuring seamless interoperability with diverse microcontrollers including legacy 68HC11 derivatives and modern ARM-based SoCs.
How does the HOLD pin function on the AT25160AN-10SU-1.8-T, and what is its practical use case?
The HOLD pin on the AT25160AN-10SU-1.8-T suspends ongoing SPI communication without resetting the internal address counter or command state. When asserted low (while SCK is low), it places SO in high-impedance and ignores SI inputs, allowing the host MCU to service time-critical interrupts - such as ADC conversions or motor control PWM updates - then resume the exact same transaction. This eliminates the need to retransmit op-codes and addresses, preserving deterministic timing in real-time embedded systems where latency must be bounded.
What is the maximum write endurance and data retention specification for the AT25160AN-10SU-1.8-T?
The AT25160AN-10SU-1.8-T is rated for 1 million write cycles per memory location and 100 years of data retention at 25°C. These specifications are measured under standard test conditions (5.0V, 25°C, page mode) and reflect actual characterization data - not typical or guaranteed min/max estimates. In practice, this means the AT25160AN-10SU-1.8-T can reliably store calibration data or configuration parameters across decades of field operation, even with frequent updates in industrial logging or adaptive control applications.
Can the AT25160AN-10SU-1.8-T be used in automotive applications, and what qualifications support that use?
Yes, the AT25160AN-10SU-1.8-T is explicitly listed as "Available in Automotive" in its official datasheet Features section. While the specific ordering code AT25160AN-10SU-1.8-T carries industrial temperature grading (–40°C to +85°C), its Absolute Maximum Ratings extend to –55°C to +125°C, and it meets automotive-grade reliability requirements including 1M write endurance and 100-year retention. For full AEC-Q100 qualification, designers should verify the exact automotive-grade variant (e.g., AT25160A-10MU-1.8) with Microchip - but the AT25160AN-10SU-1.8-T's underlying silicon and process are automotive-capable.
AT25160AN-10SU-1.8-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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-SOIC
AT25160AN-10SU-1.8-T FAQ
1.How can I place an order for AT25160AN-10SU-1.8-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25160AN-10SU-1.8-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 AT25160AN-10SU-1.8-T reliable?
The price and inventory of AT25160AN-10SU-1.8-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25160AN-10SU-1.8-T is usually 5 days.
3.What payment methods are accepted for AT25160AN-10SU-1.8-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25160AN-10SU-1.8-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25160AN-10SU-1.8-T?
AT25160AN-10SU-1.8-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25160AN-10SU-1.8-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 AT25160AN-10SU-1.8-T?
For technical support, including AT25160AN-10SU-1.8-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25160AN-10SU-1.8-T requirements.
6.How does Aetrix verify that AT25160AN-10SU-1.8-T is sourced from the original manufacturer or authorized distributors?
All AT25160AN-10SU-1.8-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 AT25160AN-10SU-1.8-T meets industry standards.
7.What is the process for return or replacement of AT25160AN-10SU-1.8-T?
All AT25160AN-10SU-1.8-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25160AN-10SU-1.8-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 AT25160AN-10SU-1.8-T part is unused and in its original packaging.
Return procedure for AT25160AN-10SU-1.8-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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