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Microchip Technology AT25160N-10SI-2.7
- Part No.:
- AT25160N-10SI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25160N-10SI-2.7.pdf
- Description:
- IC EEPROM 16KBIT SPI 3MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,837
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Product details
Overview
AT25160N-10SI-2.7 from Microchip Technology (formerly Atmel) is a 16-kbit SPI serial EEPROM organized as 2048 words × 8 bits, operating from 2.7V to 5.5V, supporting 3.0 MHz clock rate at 5V, with 32-byte page write capability and hardware/software write protection via WP pin and status register. It is used in industrial control systems for parameter storage and calibration data retention.
For engineers reviewing the AT25160N-10SI-2.7 datasheet, AT25160N-10SI-2.7 pinout, AT25160N-10SI-2.7 application, or AT25160N-10SI-2.7 equivalent, key selection considerations include its 2.7–5.5V supply range, 8-lead JEDEC SOIC package, 1 million write cycles endurance, 100-year data retention, and SPI Mode 0/3 compatibility with microcontrollers such as 68HC11.
Technical Context
The AT25160N-10SI-2.7 implements a synchronous serial peripheral interface (SPI) slave device with separate SI (input) and SO (output) pins, MSB-first data transfer, and no erase cycle required before write. Its internal architecture includes an 8-bit instruction register supporting WREN, WRITE, READ, RDSR, WRSR, and WRDI commands.
Block write protection is configurable via BP0/BP1 bits in the nonvolatile status register to protect 0%, 25%, 50%, or 100% of the memory array; the WPEN bit enables or disables hardware protection via the WP pin. The HOLD pin suspends ongoing serial communication without resetting the sequence when asserted low during SCK low time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8-bit words), sufficient for firmware configuration tables or sensor calibration coefficients |
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct interfacing with 3.3V and 5V microcontroller I/O without level shifting |
| Max Clock Frequency | 3.0 MHz at VCC = 5.0 V - enables fast parameter read/write in real-time embedded systems |
| Page Write Size | 32 bytes - reduces write overhead versus byte-write-only EEPROMs; improves update efficiency |
| Write Endurance | 1,000,000 cycles - suitable for logging or counter applications with frequent updates |
| Data Retention | 100 years at +25°C - ensures long-term reliability in unattended industrial deployments |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade environments including factory automation |
Pinout & Package
AT25160N-10SI-2.7 is supplied in an 8-lead JEDEC SOIC package (package code 8S1), 0.150" wide body, with standard gull-wing leads and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must be low to accept instructions; high impedance on SO when CS high |
| SCK | Serial Clock | Input only; synchronizes all data transfers; supports SPI Modes 0 and 3 |
| SI | Serial Data Input | Receives op-codes, addresses, and write data; MSB first; ignored during HOLD or write cycle |
| SO | Serial Data Output | Drives read data and status bits; tri-stated when CS high or during HOLD |
| GND | Ground Reference | Return path for VCC and all I/O; must be low-impedance for noise immunity |
| VCC | Power Supply | 2.7–5.5 V input; decoupling capacitor (0.1 µF) recommended near 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 transaction without resetting address counter; requires SCK low to assert |
Key Features
| Feature | Design Value |
|---|---|
| Self-timed write cycle | 5 ms typical - eliminates need for external timing control or polling delay management |
| Flexible block protection | Configurable 0%/25%/50%/100% array protection via status register - enables selective firmware parameter locking |
| Dual write protection | Combines hardware (WP pin) and software (WREN + WRSR) methods - prevents accidental writes across power cycles |
| Low standby current | 0.2 µA typical at 2.7 V - extends battery life in portable or energy-harvesting sensor nodes |
| Industrial temperature range | −40°C to +85°C - validated for deployment in motor drives, PLC modules, and HVAC controllers |
Applications
| Industrial Sensor Calibration Storage | Motor Drive Parameter Backup |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain values for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed during system boot and runtime recalibration. Use Value: Ensures measurement accuracy across temperature and aging; leverages 100-year retention and 1M-cycle endurance for field-updatable calibration. |
Use Scenario: Retaining torque limits, PID coefficients, and fault history in brushless DC motor drives after power loss. IC Role / Device Role / Timing Role: SPI-configurable persistent memory interfaced directly with MCU's SPI peripheral. Use Value: Enables safe restart without reconfiguration; 32-byte page writes reduce update latency during dynamic tuning sessions. |
| Smart Meter Firmware Settings | Medical Device Configuration Archive |
Use Scenario: Holding tariff schedules, pulse constants, and communication parameters in ANSI C12.19-compliant electricity meters. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage with hardware WP pin tied to system security controller. Use Value: Meets utility-grade reliability requirements; block protection prevents corruption of critical billing parameters during firmware updates. |
Use Scenario: Archiving user-defined therapy profiles and safety thresholds in portable infusion pumps. IC Role / Device Role / Timing Role: Fail-safe configuration store with dual protection (WP pin + status register) to prevent unintended changes. Use Value: Supports IEC 62304 Class B software requirements; 2.7–5.5 V operation simplifies integration with 3.3 V medical SoCs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95160-WMN6TP | STMicroelectronics 16 Kbit SPI EEPROM; 2.5–5.5 V supply; 20 MHz max clock; same 8-lead SOIC package | Higher speed and wider voltage range; lacks HOLD pin; different status register bit mapping | Preferred where faster write throughput is needed and HOLD functionality is unused |
| BR24G16NUX-10 | Rohm 16 Kbit SPI EEPROM; 1.7–5.5 V supply; 10 MHz max clock; 8-lead TSSOP (same footprint as SOIC but thinner) | Lower minimum voltage (1.7 V); no HOLD pin; different WP behavior (active-high by default) | Selected for ultra-low-power battery applications requiring sub-2V operation |
Compared with AT25160N-10SI-2.7, M95160-WMN6TP offers higher speed but omits HOLD support, while BR24G16NUX-10 enables deeper sleep modes at 1.7 V but requires redesign of WP logic and layout due to TSSOP thermal profile differences.
Availability
AT25160N-10SI-2.7 is available at Aetrix Electronics and suitable for industrial control, motor drive, smart metering, and medical device applications requiring stable component supply, long-life data retention, and automotive-qualified alternatives.
Supply support for AT25160N-10SI-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 nonvolatile memory solutions, with broad industrial and automotive qualification programs.
The AT25160N-10SI-2.7 belongs to Microchip's legacy Atmel SPI EEPROM product line, designed specifically for reliable, low-power, pin-efficient configuration storage in resource-constrained embedded systems.
FAQ
What is the maximum clock frequency supported by the AT25160N-10SI-2.7?
The AT25160N-10SI-2.7 supports up to 3.0 MHz at VCC = 5.0 V, 2.1 MHz at VCC = 2.7–3.6 V, and 0.5 MHz at VCC = 1.8–2.6 V. These values are specified in the AC Characteristics table and reflect guaranteed timing margins across temperature and voltage ranges. The AT25160N-10SI-2.7 does not support overclocking beyond these limits without violating setup/hold timing requirements.
Does the AT25160N-10SI-2.7 require an external erase cycle before writing?
No, the AT25160N-10SI-2.7 does not require a separate erase cycle. All write operations are self-timed and automatically erase and program the target location within the 5 ms typical write cycle. This simplifies firmware implementation compared to parallel EEPROMs and eliminates erase-related timing complexity in the host MCU driver.
How is write protection implemented on the AT25160N-10SI-2.7?
The AT25160N-10SI-2.7 implements dual-layer write protection: hardware protection via the WP pin (when WPEN = 1 and WP = low), and software protection via status register bits BP0/BP1 that define protected memory blocks (0%, 25%, 50%, or 100%). Both mechanisms can be used independently or concurrently to safeguard configuration data against unintended modification.
What package type is used for the AT25160N-10SI-2.7?
The AT25160N-10SI-2.7 uses an 8-lead JEDEC SOIC package (package code 8S1), 0.150" wide body, with gull-wing leads and 1.27 mm pitch. This package is compatible with standard SOIC footprints and reflow profiles, and is distinct from the PDIP (8P3) and TSSOP (14A2) variants offered in the same family.
Can the AT25160N-10SI-2.7 operate at 1.8 V?
No, the AT25160N-10SI-2.7 is rated for 2.7 V to 5.5 V operation only. For 1.8 V compatibility, the correct part is AT25160N-10SI-1.8, which has identical functionality but is characterized down to 1.8 V. Using AT25160N-10SI-2.7 below 2.7 V may result in unreliable read/write behavior or failure to meet AC timing specifications.
AT25160N-10SI-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:
- 3 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
AT25160N-10SI-2.7 FAQ
1.How can I place an order for AT25160N-10SI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25160N-10SI-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 AT25160N-10SI-2.7 reliable?
The price and inventory of AT25160N-10SI-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 AT25160N-10SI-2.7 is usually 5 days.
3.What payment methods are accepted for AT25160N-10SI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25160N-10SI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25160N-10SI-2.7?
AT25160N-10SI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25160N-10SI-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 AT25160N-10SI-2.7?
For technical support, including AT25160N-10SI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25160N-10SI-2.7 requirements.
6.How does Aetrix verify that AT25160N-10SI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25160N-10SI-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 AT25160N-10SI-2.7 meets industry standards.
7.What is the process for return or replacement of AT25160N-10SI-2.7?
All AT25160N-10SI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25160N-10SI-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 AT25160N-10SI-2.7 part is unused and in its original packaging.
Return procedure for AT25160N-10SI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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