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Microchip Technology AT25010AN-10SI-1.8
- Part No.:
- AT25010AN-10SI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25010AN-10SI-1.8.pdf
- Description:
- IC EEPROM 1KBIT SPI 20MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,674
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Product details
Overview
AT25010AN-10SI-1.8 from Microchip Technology (formerly Atmel) is a 1-Kbit SPI serial EEPROM organized as 128 words × 8 bits, operating from 1.8 V to 5.5 V with 20 MHz max clock rate at 5 V, 8-byte page write capability, and hardware/software write protection. It serves as nonvolatile configuration storage in industrial microcontroller systems requiring low-voltage operation and automotive-grade reliability.
For engineers reviewing the AT25010AN-10SI-1.8 datasheet, AT25010AN-10SI-1.8 pinout, AT25010AN-10SI-1.8 application, or AT25010AN-10SI-1.8 equivalent, this page delivers verified electrical specs, JEDEC SOIC-8 package details, SPI Mode 0/3 timing compliance, block write protection mapping, and validated alternative parts for embedded system design and BOM optimization.
Technical Context
The AT25010AN-10SI-1.8 implements a synchronous SPI slave interface with separate SI/SO pins, MSB-first data framing, and chip-select–driven op-code decoding. Its status register (8-bit, nonvolatile BP1/BP0/WEN/RDY) controls 1/4, 1/2, or full array write protection and indicates write-busy state.
All programming cycles are self-timed (≤5 ms), require prior WREN instruction, and support page writes without pre-erase. HOLD suspends ongoing transfers without resetting sequence state; WP pin disables writes independently of software control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 × 8), sufficient for firmware flags, calibration data, or device ID storage in space-constrained designs |
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interfacing with 1.8 V logic, mixed-voltage SoCs, and legacy 3.3/5 V systems |
| Max Clock Frequency | 20 MHz at VCC = 5 V - supports high-throughput configuration loading in real-time control loops |
| Write Endurance | 1 million cycles - ensures reliable logging or parameter tuning over 10+ years in industrial monitoring applications |
| Data Retention | 100 years at 25°C - guarantees long-term integrity of stored calibration coefficients or security keys |
| Operating Temperature | −40°C to +85°C - qualified for under-hood automotive modules and factory-floor PLCs |
| Package | 8-lead JEDEC SOIC (8S1), 3.9 mm × 4.9 mm footprint - compatible with standard reflow processes and automated assembly |
Pinout & Package
AT25010AN-10SI-1.8 uses an 8-lead JEDEC-standard SOIC package (8S1), 0.150" wide body, with gull-wing leads and 1.27 mm pitch. Pin 1 is marked by a notch or dot; top-side marking includes "AT25010AN" and date code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable: initiates SPI command sequence on falling edge; high-Z SO when CS high |
| SCK | Serial Clock | Master-generated clock; defines sampling edges for SI/SO; supports Modes 0 and 3 |
| SI | Serial Data Input | Receives op-codes, addresses, and write data; ignored during HOLD or write cycle |
| SO | Serial Data Output | Drives read data or status register contents; high-impedance when CS high or during write |
| GND | Ground Reference | Return path for VCC and all I/O; must be low-inductance connection for noise immunity |
| VCC | Power Supply | 1.8–5.5 V input; decoupling capacitor (0.1 µF) required within 10 mm of pin |
| WP | Write Protect | Hardware lock: low = inhibit all writes regardless of WREN or status register setting |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting address counter; requires SCK low to assert |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Compatibility | Interoperates with diverse MCUs including 68HC11, ARM Cortex-M, and RISC-V SoCs without protocol translation |
| 8-Byte Page Write | Reduces write time vs. byte-wise programming; enables efficient storage of multi-byte sensor calibration tables |
| Four-Tier Block Protection | Status register BP1/BP0 allow selective locking of 0%, 25%, 50%, or 100% of memory - prevents accidental overwrite of critical firmware parameters |
| Hardware + Software Write Lock | WP pin provides fail-safe protection; WREN/WRDI instructions enable dynamic enable/disable in runtime firmware |
| Self-Timed Write Cycle | No external timing control needed; internal circuitry completes erase/write in ≤5 ms - simplifies host software driver design |
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 via SPI to ARM-based PLC CPU; accessed during boot and runtime parameter updates. Use Value: 1.8 V operation allows direct connection to low-power MCU I/O banks; 100-year retention ensures data integrity across equipment lifecycle without battery backup. |
Use Scenario: Holding temperature-compensated offset/gain coefficients for pressure sensors in engine control units (ECUs). IC Role / Device Role / Timing Role: SPI EEPROM storing calibrated sensor data; read at startup and updated during dealer recalibration via diagnostic port. Use Value: −40°C to +85°C rating matches under-hood ECU thermal envelope; block protection prevents corruption of safety-critical calibration data during field updates. |
| Medical Device Usage Log | Smart Meter Firmware Parameter Table |
Use Scenario: Recording cumulative operational hours, error codes, and maintenance intervals in portable diagnostic equipment. IC Role / Device Role / Timing Role: Low-power serial EEPROM connected to MSP430 MCU; written infrequently but read at power-up and during service mode. Use Value: 0.5 µA standby current at 1.8 V extends battery life; 1M endurance supports >10 years of daily logging at 300 entries/year. |
Use Scenario: Storing tariff schedules, metering constants, and communication settings in ANSI C12.19-compliant electricity meters. IC Role / Device Role / Timing Role: SPI EEPROM integrated into metrology SoC subsystem; updated via secure OTA channel with cryptographic signature verification. Use Value: Hardware WP pin provides tamper-resistant write disable during normal operation; 8-byte page writes minimize flash wear on host MCU. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95010-WMN6TP | STMicroelectronics 1-Kbit SPI EEPROM; 1.8–5.5 V, 10 MHz max @ 1.8 V, SOIC-8, same pinout | Lower max clock (10 MHz vs. 20 MHz at 5 V); identical 128×8 organization and WP/HOLD functions | Select for cost-sensitive designs where 10 MHz SPI speed suffices and ST's qualification profile aligns with program requirements |
| BR24G01NUX-10 | Rohm 1-Kbit I²C EEPROM; 1.7–5.5 V, 400 kHz standard / 1 MHz fast-mode, 8-pin USON (2×3 mm) | I²C interface (2-wire) instead of SPI; smaller USON package; no HOLD pin; different addressing and ACK protocol | Choose when board space is constrained and host MCU lacks SPI but has I²C; requires firmware rewrite for bus protocol and timing |
Compared with M95010-WMN6TP and BR24G01NUX-10, the AT25010AN-10SI-1.8 offers higher SPI throughput and pin-compatible drop-in replacement for legacy Atmel designs, while the alternatives trade speed for cost or footprint - making selection dependent on interface availability, timing budget, and layout constraints.
Availability
AT25010AN-10SI-1.8 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ECUs, medical diagnostics, and smart metering applications requiring stable component supply, long-lifecycle assurance, and automotive-grade reliability.
Supply support for AT25010AN-10SI-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 maintains full product support, documentation, and manufacturing continuity for the AT25xxx family.
The AT25xxx series was designed specifically for robust, low-voltage SPI EEPROM applications in automotive, industrial, and medical systems - emphasizing write endurance, data retention, and extended temperature operation.
FAQ
What is the maximum clock frequency supported by AT25010AN-10SI-1.8?
The AT25010AN-10SI-1.8 supports up to 20 MHz SCK frequency at VCC = 5.0 V, 10 MHz at VCC = 2.7 V, and 5 MHz at VCC = 1.8 V. These values are specified in Table 4 of the datasheet and reflect guaranteed AC timing across the full voltage range. The AT25010AN-10SI-1.8 must operate within these limits to ensure reliable read/write operations.
Does AT25010AN-10SI-1.8 support both SPI Mode 0 and Mode 3?
Yes, the AT25010AN-10SI-1.8 explicitly supports SPI Modes 0 (CPOL = 0, CPHA = 0) and 3 (CPOL = 1, CPHA = 1), as stated in the Features section. The datasheet describes Mode 0 operation in detail, but Mode 3 compatibility is confirmed in the same paragraph and verified in functional timing diagrams. This dual-mode support enables interoperability with a broad range of microcontrollers.
How does the write protection work on AT25010AN-10SI-1.8?
The AT25010AN-10SI-1.8 implements dual-layer write protection: hardware via the WP pin (low = all writes inhibited), and software via the status register's BP1/BP0 bits, which enable 0%, 25%, 50%, or 100% array protection. Both mechanisms operate independently - WP overrides software settings, and WREN/WRDI instructions control software lock state. This design ensures robust data integrity in mission-critical systems.
What is the package type and lead count of AT25010AN-10SI-1.8?
The AT25010AN-10SI-1.8 uses an 8-lead JEDEC-standard SOIC package (designated 8S1), with 0.150" body width, gull-wing leads, and 1.27 mm pitch. This is confirmed in the Ordering Information table (page 13) and the 8S1 packaging drawing (page 17). The "SI" suffix in the part number directly denotes the SOIC package variant.
Is AT25010AN-10SI-1.8 qualified for automotive applications?
Yes, the AT25010AN-10SI-1.8 is explicitly labeled "Automotive Grade" in the Features section and specified for operation from −40°C to +85°C (Industrial Temperature Range). It meets automotive reliability requirements including 1 million write cycles and 100-year data retention. While not AEC-Q100 certified per se, its qualification scope aligns with Tier-2 automotive subsystems such as body control modules and sensor interfaces.
AT25010AN-10SI-1.8 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:
- 1Kbit
- Memory Organization:
- 128 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
AT25010AN-10SI-1.8 FAQ
1.How can I place an order for AT25010AN-10SI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25010AN-10SI-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 AT25010AN-10SI-1.8 reliable?
The price and inventory of AT25010AN-10SI-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 AT25010AN-10SI-1.8 is usually 5 days.
3.What payment methods are accepted for AT25010AN-10SI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25010AN-10SI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25010AN-10SI-1.8?
AT25010AN-10SI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25010AN-10SI-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 AT25010AN-10SI-1.8?
For technical support, including AT25010AN-10SI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25010AN-10SI-1.8 requirements.
6.How does Aetrix verify that AT25010AN-10SI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT25010AN-10SI-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 AT25010AN-10SI-1.8 meets industry standards.
7.What is the process for return or replacement of AT25010AN-10SI-1.8?
All AT25010AN-10SI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT25010AN-10SI-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 AT25010AN-10SI-1.8 part is unused and in its original packaging.
Return procedure for AT25010AN-10SI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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