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Microchip Technology AT25160AN-10SU-2.7
- Part No.:
- AT25160AN-10SU-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25160AN-10SU-2.7.pdf
- Description:
- IC EEPROM 16KBIT SPI 20MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,546
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Product details
Overview
AT25160AN-10SU-2.7 from Microchip Technology (formerly Atmel) is a 16-Kbit SPI serial EEPROM organized as 2048 × 8 bits, operating from 2.7V to 5.5V, supporting 20 MHz clock rate at 5V, featuring 32-byte page write and hardware/software write protection. It serves as nonvolatile configuration storage in industrial controllers, power supply monitors, and embedded sensor nodes requiring reliable low-voltage data retention.
For engineers reviewing the AT25160AN-10SU-2.7 datasheet, AT25160AN-10SU-2.7 pinout, AT25160AN-10SU-2.7 application, or AT25160AN-10SU-2.7 equivalent, key selection criteria include VCC range (2.7–5.5 V), SPI Mode 0/3 compatibility, block write protection granularity (1/4, 1/2, or full array), HOLD/ WP pin functionality, and JEDEC SOIC-8 packaging with RoHS compliance.
Technical Context
The AT25160AN-10SU-2.7 implements a synchronous slave SPI interface with dedicated SI/SO pins, CS-controlled selection, and MSB-first data framing. It uses an 8-bit instruction register with op-codes for WREN, WRDI, RDSR, WRSR, READ, and WRITE, enabling deterministic command sequencing without external timing control.
Its internal architecture includes a nonvolatile status register with BP0/BP1 bits for configurable block protection and WPEN bit to enable/disable hardware write protection via the WP pin. All write cycles are self-timed (≤5 ms), require explicit WREN activation, and support automatic address increment during page writes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits) - provides sufficient space for firmware calibration tables, device ID, and runtime configuration in compact embedded systems. |
| Supply Voltage | 2.7 V to 5.5 V - enables direct interfacing with 3.3 V and 5 V microcontrollers without level-shifting. |
| Max Clock Frequency | 20 MHz at VCC = 5 V - supports high-throughput parameter updates in real-time control loops. |
| Page Write Size | 32 bytes - minimizes write latency per transaction and reduces wear on adjacent memory locations. |
| Write Endurance | 1 million cycles - ensures long-term reliability in applications with frequent logging or counter updates. |
| Data Retention | 100 years - guarantees persistent storage of critical settings across product lifetime without refresh. |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including motor drives and outdoor metering. |
Pinout & Package
AT25160AN-10SU-2.7 is packaged in an 8-lead JEDEC SOIC (8S1), 0.150" wide, RoHS-compliant, green plastic gull-wing outline with standard lead pitch (1.27 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must be low to accept commands and drive SO; high-Z output when high. |
| SCK | Serial Clock | Input-only master-generated clock; defines timing for SI sampling and SO output edges (Mode 0/3 compatible). |
| SI | Serial Data Input | Command, address, and data input path; latched on SCK rising edge in Mode 0. |
| SO | Serial Data Output | Read data and status register output; tri-stated when CS is high or HOLD is active. |
| GND | Ground | Reference return for all digital and power signals; requires low-impedance connection to system ground plane. |
| VCC | Power Supply | Primary supply rail (2.7–5.5 V); decoupling capacitor (0.1 µF) required within 10 mm of pin. |
| WP | Write Protect | Hardware lock for status register and protected memory blocks when WPEN = 1 and WP = low. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting sequence; requires SCK low before assertion. |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Support | Interoperates with diverse MCUs including 68HC11, ARM Cortex-M, and PIC families without protocol translation. |
| Block Write Protection | Configurable via status register to lock 1/4, 1/2, or entire memory array-prevents accidental overwrite of boot parameters or calibration data. |
| Hardware + Software Write Disable | WP pin and WRDI instruction provide dual-layer protection: one prevents physical access, the other enforces software policy. |
| Self-Timed Write Cycle | No external erase step or timing management needed; host only polls RDSR RDY bit to confirm completion. |
| HOLD Pin Functionality | Enables multi-master arbitration or CPU context switching by freezing SPI state mid-transfer without data loss. |
Applications
| Industrial PLC Configuration Storage | Smart Energy Meter Calibration Data |
|---|---|
|
Use Scenario: Storing I/O mapping, scaling coefficients, and communication settings in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed during boot and updated during field commissioning via SPI. Use Value: Ensures deterministic startup behavior and eliminates need for external backup batteries or supercapacitors. |
Use Scenario: Retaining meter-specific calibration constants, tariff tables, and tamper-event logs in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Secure, long-life data vault with hardware write protection preventing unauthorized parameter modification. Use Value: Meets 100-year data retention requirement for utility-grade metering while supporting over 1M write cycles for daily logging. |
| Medical Sensor Module Serial Number | Automotive Body Control Unit Settings |
|
Use Scenario: Storing unique device identifiers, manufacturing date, and sensor calibration offsets in portable diagnostic sensors. IC Role / Device Role / Timing Role: Factory-programmed identity anchor read at power-up to validate sensor authenticity and version. Use Value: Enables traceability and anti-counterfeiting via immutable serial number storage with no risk of accidental overwrite. |
Use Scenario: Saving user preferences (mirror position, seat memory), fault codes, and adaptive learning values in automotive body control modules. IC Role / Device Role / Timing Role: Low-power, AEC-Q100-aligned nonvolatile memory accessed during ignition-on initialization and runtime updates. Use Value: Supports automotive-grade reliability with –40°C to +85°C operation and 1M endurance for frequent reprogramming during service. |
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 | Same 16 Kbit density and SOIC-8 package; operates down to 1.7 V but max clock is 10 MHz at 2.5 V (vs. 20 MHz at 5 V for AT25160AN-10SU-2.7). | Preferred where ultra-low-voltage operation (<2.5 V) is mandatory; less suitable for high-speed parameter streaming. | Select M95160-DRMN6TP/K only if system VCC falls below 2.7 V; otherwise AT25160AN-10SU-2.7 delivers higher throughput. |
| BR24G16NUX-10 | I²C interface (not SPI); same 16 Kbit size and SOIC-8; supports 1 MHz max clock and 1.7–5.5 V operation. | Used where I²C bus already exists and pin count is constrained; incompatible with SPI-only hosts. | Choose BR24G16NUX-10 only for I²C-based designs; AT25160AN-10SU-2.7 remains optimal for SPI-native architectures. |
Compared with M95160-DRMN6TP/K and BR24G16NUX-10, AT25160AN-10SU-2.7 offers superior SPI throughput at 5 V and native support for HOLD/ WP features essential for robust industrial firmware updates-making it the preferred choice for SPI-centric, high-reliability embedded systems.
Availability
AT25160AN-10SU-2.7 is available at Aetrix Electronics and suitable for industrial PLCs, smart energy meters, medical sensor modules, and automotive body control units requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AT25160AN-10SU-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 acquired Atmel in 2016 and maintains full product continuity, technical documentation, and manufacturing for the AT25xxxA EEPROM family.
The AT25160AN-10SU-2.7 belongs to Microchip's serial EEPROM product line, designed specifically for industrial, automotive, and medical applications demanding guaranteed data integrity, low-power operation, and extended temperature performance.
FAQ
What is the memory organization of the AT25160AN-10SU-2.7?
The AT25160AN-10SU-2.7 contains 16,384 bits of EEPROM memory organized as 2048 words × 8 bits. This structure allows byte-level random reads and writes, with address space spanning 0x0000 to 0x07FF. The AT25160AN-10SU-2.7 supports sequential read operations that auto-increment the address counter, enabling efficient bulk data retrieval without repeated address transmission.
Does the AT25160AN-10SU-2.7 support both SPI Mode 0 and Mode 3?
Yes, the AT25160AN-10SU-2.7 explicitly supports SPI Modes 0 (CPOL = 0, CPHA = 0) and 3 (CPOL = 1, CPHA = 1), as confirmed in its datasheet. Mode 0 operation is fully characterized and documented, while Mode 3 compatibility is stated as supported. The AT25160AN-10SU-2.7 does not require configuration to enable either mode-it responds correctly to clock polarity and phase conventions of both.
How does the write protection mechanism work on the AT25160AN-10SU-2.7?
The AT25160AN-10SU-2.7 implements dual-layer write protection: software-based via the status register's BP0/BP1 bits (configuring 1/4, 1/2, or full array lock), and hardware-based via the WP pin when WPEN = 1. When WP is pulled low under those conditions, writes to protected memory and the status register are blocked. The AT25160AN-10SU-2.7 retains this protection state across power cycles due to nonvolatile status bits.
What is the maximum clock frequency supported by the AT25160AN-10SU-2.7 at 3.3 V?
At VCC = 3.3 V, the AT25160AN-10SU-2.7 supports up to 10 MHz SCK frequency, as specified in the AC Characteristics table for the 2.7–5.5 V voltage range. This is lower than its 20 MHz rating at 5 V but remains sufficient for most configuration and logging tasks in 3.3 V systems. The AT25160AN-10SU-2.7 maintains full functionality-including HOLD, WP, and page write-within this speed limit.
Is the AT25160AN-10SU-2.7 qualified for automotive applications?
The AT25160AN-10SU-2.7 is rated for industrial temperature (–40°C to +85°C) and carries no AEC-Q200 qualification. While it is used in some automotive body electronics, Microchip designates specific variants (e.g., AT25160B-MAU-2.7) for automotive-grade applications. For new automotive designs requiring formal qualification, the AT25160AN-10SU-2.7 should be validated per system-level requirements, and the AT25160AN-10SU-2.7 itself is not AEC-Q200 certified.
AT25160AN-10SU-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25160AN-10SU-2.7 FAQ
1.How can I place an order for AT25160AN-10SU-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25160AN-10SU-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 AT25160AN-10SU-2.7 reliable?
The price and inventory of AT25160AN-10SU-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 AT25160AN-10SU-2.7 is usually 5 days.
3.What payment methods are accepted for AT25160AN-10SU-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25160AN-10SU-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25160AN-10SU-2.7?
AT25160AN-10SU-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25160AN-10SU-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 AT25160AN-10SU-2.7?
For technical support, including AT25160AN-10SU-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25160AN-10SU-2.7 requirements.
6.How does Aetrix verify that AT25160AN-10SU-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25160AN-10SU-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 AT25160AN-10SU-2.7 meets industry standards.
7.What is the process for return or replacement of AT25160AN-10SU-2.7?
All AT25160AN-10SU-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25160AN-10SU-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 AT25160AN-10SU-2.7 part is unused and in its original packaging.
Return procedure for AT25160AN-10SU-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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