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Microchip Technology AT25160N-10SC
- Part No.:
- AT25160N-10SC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25160N-10SC.pdf
- Description:
- IC EEPROM 16KBIT SPI 3MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
AT25160N-10SC from Microchip Technology (formerly Atmel) is a 16-Kbit SPI serial EEPROM organized as 2048 × 8 bits, supporting 2.7V–5.5V operation, 3.0 MHz clock rate at 5V, 32-byte page write, and hardware/software write protection via WP pin and status register. It is used in industrial control panels for nonvolatile parameter storage with guaranteed 1 million write cycles and 100-year data retention.
For engineers reviewing the AT25160N-10SC datasheet, AT25160N-10SC pinout, AT25160N-10SC application, or AT25160N-10SC equivalent, key selection criteria include VCC operating range (2.7–5.5 V), SPI Mode 0/3 compatibility, block write protection granularity (1/4, 1/2, or full array), self-timed 5 ms typical write cycle, and JEDEC SOIC-8 packaging with industrial temperature support.
Technical Context
The AT25160N-10SC operates as a slave device on a 3-wire SPI bus (CS, SCK, SI/SO), requiring WREN before WRITE and supporting MSB-first transmission. Its status register (WPEN, BP1/BP0, WEN, RDY) controls hardware write protection and indicates readiness during internal write cycles.
It implements HOLD functionality to suspend ongoing serial transfers without resetting the sequence, and supports page-mode writes up to 32 bytes with automatic address incrementing. The device uses separate SI and SO pins and complies with SPI Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8-bit words) - provides sufficient nonvolatile storage for configuration registers and calibration data in embedded controllers. |
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct interfacing with 3.3 V and 5 V microcontrollers without level shifting. |
| Max Clock Frequency | 3.0 MHz at VCC = 5.0 V - supports high-speed firmware updates and logging in real-time systems. |
| Write Cycle Time | 5 ms typical - determines minimum time between successive write operations; impacts system responsiveness during parameter saves. |
| Endurance | 1,000,000 write cycles - ensures long-term reliability in applications requiring frequent reconfiguration (e.g., energy meter tariff tables). |
| Data Retention | 100 years at +25°C - guarantees persistent storage of critical settings across product lifetime without refresh. |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments including factory automation and outdoor telemetry units. |
Pinout & Package
AT25160N-10SC is housed in an 8-lead JEDEC SOIC package (8S1), 0.150" wide, with standard gull-wing leads and 1.27 mm pitch. Pin 1 is marked by a notch or dot; package meets RoHS requirements and is compatible with automated surface-mount assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must be low to accept commands; high impedance on SO when CS is high. |
| SCK | Serial Clock | Input clock synchronized to master; defines timing for SI sampling and SO output transitions. |
| SI | Serial Data Input | Command, address, and data input path; MSB-first; ignored during HOLD or when CS is high. |
| SO | Serial Data Output | Read data and status register output; tri-stated when CS is high or during HOLD assertion. |
| GND | Ground Reference | Return path for all digital I/O and power supply; requires low-impedance PCB connection to minimize noise. |
| VCC | Power Supply | Primary supply for core logic and I/O; decoupling capacitor (0.1 µF) required near pin per datasheet. |
| WP | Write Protect | Hardware lock for status register; active-low when WPEN bit is set; prevents accidental writes during power-up transients. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting internal state; requires SCK low to assert/deassert. |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Support | Enables interoperability with diverse microcontrollers (e.g., STM32, PIC, MSP430) without protocol translation. |
| 32-byte Page Write | Reduces total programming time versus byte-write mode; allows efficient bulk updates of adjacent configuration fields. |
| Block Write Protection | Configurable via status register to protect 1/4, 1/2, or entire memory - prevents corruption of boot parameters or security keys. |
| Self-timed Write Cycle | Eliminates need for external timing control or polling overhead; internal timer ensures reliable completion regardless of host clock stability. |
| Low Standby Current | 0.2 µA typical at 2.7 V - extends battery life in portable instrumentation and wireless sensor nodes. |
Applications
| Industrial PLC Configuration Storage | Medical Device Calibration Data |
|---|---|
Use Scenario: Storing I/O mapping, PID tuning constants, and alarm thresholds in programmable logic controllers deployed in harsh factory environments. IC Role / Device Role / Timing Role: Nonvolatile parameter memory accessed via SPI during startup and runtime reconfiguration; RDY flag synchronizes host reads/writes. Use Value: Ensures deterministic behavior after power loss; 1M endurance supports daily firmware updates over 10+ years. |
Use Scenario: Retaining sensor offset/gain coefficients and patient-specific therapy profiles in portable infusion pumps and diagnostic monitors. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage with hardware WP pin tied to system enable logic to prevent runtime corruption. Use Value: Meets IEC 62304 Class C software safety requirements through guaranteed data integrity and write-cycle limiting. |
| Automotive Body Control Module | Smart Energy Meter Firmware Patch Storage |
Use Scenario: Saving seat/mirror position presets, lighting profiles, and door lock configurations in 12 V automotive body control units. IC Role / Device Role / Timing Role: SPI EEPROM interfaced directly to 3.3 V MCU; HOLD pin used during CAN interrupt servicing to avoid bus contention. Use Value: −40°C to +85°C rating ensures operation under hood temperature extremes; 2.7 V min VCC supports brown-out resilience. |
Use Scenario: Holding field-upgradable firmware patches and tariff schedule tables in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Dual-role memory: stores static billing logic and dynamic usage logs; protected blocks isolate critical bootloader code. Use Value: Block write protection prevents overwrite of secure boot region during OTA updates; 100-year retention eliminates field replacement. |
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; identical 8-lead SOIC package, same 2.7–5.5 V range, but max clock 20 MHz and faster 5 ms write cycle. | Higher speed supports burst logging in data loggers; no HOLD pin - limits use in interrupt-heavy real-time systems. | Select when higher SPI throughput is required and HOLD functionality is not needed. |
| BR24G16NUX-10 | Rohm 16 Kbit SPI EEPROM; supports 1.7–5.5 V, built-in error correction (ECC), and 10 million endurance cycles; same SOIC-8 footprint. | ECC enables robust operation in high-radiation environments (e.g., aerospace telemetry); higher endurance suits daily firmware update scenarios. | Select when enhanced reliability in mission-critical or radiation-prone applications is prioritized over cost. |
Compared with M95160-WMN6TP and BR24G16NUX-10, the AT25160N-10SC offers proven industrial temperature stability and integrated HOLD functionality-critical for deterministic SPI communication in interrupt-driven embedded systems-while maintaining broad MCU compatibility and lower unit cost.
Availability
AT25160N-10SC is available at Aetrix Electronics and suitable for industrial control systems, medical instrumentation, automotive body electronics, and smart metering applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AT25160N-10SC 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 support, documentation, and manufacturing continuity for the AT25xxx family of serial EEPROMs.
The AT25160N-10SC belongs to Microchip's legacy SPI EEPROM product line, designed specifically for cost-sensitive, low-power embedded systems requiring reliable nonvolatile storage with minimal board space and simple interface requirements.
FAQ
What voltage range does the AT25160N-10SC support, and how does it affect system design?
The AT25160N-10SC supports 2.7 V to 5.5 V operation, enabling direct integration with both 3.3 V and 5 V microcontrollers without level-shifting circuitry. This simplifies power architecture in mixed-voltage systems and improves noise immunity compared to 1.8 V variants. The AT25160N-10SC datasheet specifies that standby current rises from 0.2 µA at 2.7 V to 5.0 µA at 5.0 V, so designers should verify sleep-mode budget accordingly.
Does the AT25160N-10SC require an external erase cycle before writing new data?
No, the AT25160N-10SC performs automatic erase during each write operation-no separate ERASE command or cycle is needed. Each byte or page write internally erases and reprograms the target location. This simplifies firmware implementation and reduces latency versus parallel EEPROMs. The AT25160N-10SC completes this self-timed process in 5 ms typical, with RDY bit indicating completion.
How does the HOLD pin function on the AT25160N-10SC, and when should it be used?
The HOLD pin suspends ongoing SPI communication without resetting the internal command sequence-allowing the host MCU to service higher-priority interrupts (e.g., CAN or ADC) and resume exactly where it left off. It must be asserted while SCK is low. The AT25160N-10SC maintains SO in high-impedance and ignores SI inputs during HOLD. This feature is essential in real-time systems where deterministic SPI latency cannot be compromised.
Can the AT25160N-10SC be used in automotive applications, and what qualifications does it meet?
The AT25160N-10SC is rated for −40°C to +85°C operation and is listed as "Automotive Grade and Extended Temperature Devices Available" in its official documentation. While the specific AT25160N-10SC variant is commercial-grade (0°C to 70°C), the -10SI and -10TI versions meet AEC-Q100 stress testing for automotive use. For under-hood deployment, select AT25160N-10SI or AT25160N-10TI instead of AT25160N-10SC.
What is the purpose of the WPEN bit in the AT25160N-10SC status register?
The WPEN (Write Protect Enable) bit controls whether the hardware WP pin affects status register writes. When WPEN = 1, pulling WP low disables all status register modifications-including BP0/BP1 and WPEN itself. When WPEN = 0, the WP pin is ignored, allowing full software control even if WP is grounded. This flexibility lets designers hardwire WP for system-level protection while retaining ability to configure protection levels during initial programming. The AT25160N-10SC retains WPEN state across power cycles as a nonvolatile bit.
AT25160N-10SC 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25160N-10SC FAQ
1.How can I place an order for AT25160N-10SC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25160N-10SC 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-10SC reliable?
The price and inventory of AT25160N-10SC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25160N-10SC is usually 5 days.
3.What payment methods are accepted for AT25160N-10SC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25160N-10SC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25160N-10SC?
AT25160N-10SC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25160N-10SC 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-10SC?
For technical support, including AT25160N-10SC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25160N-10SC requirements.
6.How does Aetrix verify that AT25160N-10SC is sourced from the original manufacturer or authorized distributors?
All AT25160N-10SC 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-10SC meets industry standards.
7.What is the process for return or replacement of AT25160N-10SC?
All AT25160N-10SC units undergo pre-shipment inspection (PSI). If there is an issue with AT25160N-10SC, 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-10SC part is unused and in its original packaging.
Return procedure for AT25160N-10SC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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