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Microchip Technology AT24C01-10SC-2.5
- Part No.:
- AT24C01-10SC-2.5
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C01-10SC-2.5.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,912
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Product details
Overview
AT24C01-10SC-2.5 from Microchip Technology (formerly Atmel) is a 1K-bit (128 × 8) serial EEPROM IC optimized for low-voltage embedded systems. It operates from 2.5V to 5.5V, supports 100 kHz I²C communication, features 4-byte page write mode, self-timed 10 ms max write cycle, and delivers 1 million write endurance with 100-year data retention - used in industrial sensor calibration storage and consumer device configuration memory.
For engineers reviewing the AT24C01-10SC-2.5 datasheet, AT24C01-10SC-2.5 pinout, AT24C01-10SC-2.5 application, or AT24C01-10SC-2.5 equivalent, key selection factors include its 2.5V–5.5V supply range, JEDEC SOIC-8 package, 100 kHz I²C timing compliance at 2.5V, page-write capability, and industrial-grade (-40°C to +85°C) temperature rating.
Technical Context
The AT24C01-10SC-2.5 implements a standard two-wire (I²C-compatible) serial interface with open-drain SDA and edge-triggered SCL pins. It uses addressable byte/page write and sequential read protocols with ACK polling support for write-cycle completion detection.
Internally organized as 128 words of 8 bits, it requires a 7-bit word address for random access and supports automatic address increment during sequential reads. The TEST pin is tied to GND or VCC per application; NC pins are unconnected and must be left floating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 × 8), enabling compact nonvolatile storage for firmware flags, calibration coefficients, or user settings |
| Supply Voltage Range | 2.5V to 5.5V - compatible with 2.5V logic domains and backward-compatible with 3.3V/5V systems |
| I²C Clock Frequency | 100 kHz maximum at 2.5V - ensures reliable timing margin in low-power microcontroller interfaces |
| Write Cycle Time | 10 ms maximum - defines minimum interval between write commands; requires ACK polling or timeout handling |
| Endurance | 1 million write cycles - supports frequent reconfiguration in field-upgradable devices |
| Data Retention | 100 years at +25°C - guarantees long-term integrity of stored configuration without refresh |
| Operating Temperature | -40°C to +85°C - qualified for industrial environments including motor controllers and HVAC modules |
Pinout & Package
AT24C01-10SC-2.5 is supplied in an 8-pin JEDEC SOIC package (package code 8S1), 0.150" wide, with standard gull-wing leads and pin 1 indicator notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No Connect | Unbonded die pad; must remain unconnected on PCB |
| 2 (NC) | No Connect | Unbonded die pad; must remain unconnected on PCB |
| 3 (NC) | No Connect | Unbonded die pad; must remain unconnected on PCB |
| 4 (GND) | Ground Reference | System common return path; required for internal biasing and noise immunity |
| 5 (VCC) | Power Supply | 2.5V–5.5V main supply; decoupling capacitor (0.1 µF) recommended near pin |
| 6 (TEST) | Test Input | Factory test pin; must be externally tied to GND or VCC - not used in normal operation |
| 7 (SCL) | Serial Clock Input | Positive-edge clock for I²C data transfer; requires external pull-up resistor (typically 4.7 kΩ) |
| 8 (SDA) | Serial Data I/O | Bidirectional open-drain data line; shared across I²C bus; requires same pull-up as SCL |
Key Features
| Feature | Design Value |
|---|---|
| Low-Voltage Operation (2.5V–5.5V) | Enables direct integration into 2.5V FPGA I/O banks or ultra-low-power MCU subsystems without level shifting |
| 4-Byte Page Write Mode | Reduces I²C transaction overhead by up to 75% vs. byte writes when storing consecutive configuration parameters |
| Self-Timed Write Cycle (10 ms max) | Eliminates need for precise software timing delays - host can poll ACK or wait fixed duration |
| 1 Million Write Endurance | Supports daily firmware update logging over 27 years without wear-out risk |
| ESD Protection >3000V | Meets HBM Class 2 requirements, reducing susceptibility to handling damage during board assembly |
Applications
| Industrial Sensor Node | Smart Meter Calibration Storage |
|---|---|
Use Scenario: Storing factory-trimmed ADC offset/gain coefficients and temperature compensation tables in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding persistent calibration data accessed at power-up via I²C. Use Value: Enables single-point calibration during manufacturing and eliminates need for external trim pots or OTP fuses. | Use Scenario: Retaining meter-specific billing constants, tariff schedules, and tamper-event logs in utility smart meters operating across wide temperature ranges. IC Role / Device Role / Timing Role: Secure, long-life parameter store interfaced to metrology SoC via 100 kHz I²C under 2.5V supply. Use Value: Guarantees 100-year data retention and withstands 1M+ field updates for regulatory compliance logging. |
| Consumer Appliance UI Settings | Automotive Body Control Module |
Use Scenario: Saving user preferences (brightness, language, timer defaults) in washing machines and microwave ovens with intermittent AC power. IC Role / Device Role / Timing Role: Low-quiescent standby memory (4 µA max at 2.5V) retaining state during AC brownouts. Use Value: Maintains settings through power cycling without backup capacitor or supercapacitor. | Use Scenario: Storing seat position memory, mirror angle presets, and door lock configuration in 12V automotive body control units with local 2.5V LDO rails. IC Role / Device Role / Timing Role: Industrial-temperature EEPROM interfaced to 8-bit MCU over robust I²C bus with noise filtering. Use Value: Qualified for -40°C to +85°C operation and immune to ESD events in vehicle assembly environments. |
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 | 1 Kbit SPI interface, 2.5V–5.5V supply, 10 MHz max clock, 5 ms write cycle | Requires SPI peripheral instead of I²C; faster write but different protocol stack integration | Select when MCU has dedicated SPI hardware and timing-critical writes are needed |
| BR24G01NUX-5TR | 1 Kbit I²C interface, 1.6V–5.5V supply, 400 kHz max at 1.8V+, 5 ms write cycle, 1.2 mm × 1.0 mm DFN | Wider voltage range and smaller footprint; higher cost and tighter layout constraints | Select for space-constrained portable designs requiring extended low-voltage operation down to 1.6V |
Compared with M95010-WMN6TP and BR24G01NUX-5TR, the AT24C01-10SC-2.5 offers proven I²C compatibility at 2.5V with industrial temperature rating and JEDEC SOIC packaging - ideal for legacy-compatible, cost-sensitive industrial control boards where protocol reuse and thermal reliability are prioritized over speed or miniaturization.
Availability
AT24C01-10SC-2.5 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter calibration storage, and consumer appliance UI settings requiring stable component supply, long-lifecycle assurance, and drop-in replacement capability for existing AT24C01 designs.
Supply support for AT24C01-10SC-2.5 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 memory solutions, with broad industrial and automotive qualification capabilities.
The AT24C01 series was designed as a general-purpose, low-voltage serial EEPROM family targeting cost-sensitive embedded systems requiring reliable, byte-addressable nonvolatile storage with minimal pin count and board area.
FAQ
What is the maximum I²C clock frequency supported by AT24C01-10SC-2.5?
The AT24C01-10SC-2.5 supports up to 100 kHz I²C clock frequency when operating within its 2.5V–5.5V supply range. This is specified in the AC Characteristics table for 2.5V, 2.7V, and 1.8V versions. It does not support 400 kHz operation - that rating applies only to the 5.0V version (e.g., AT24C01-10SC).
Does AT24C01-10SC-2.5 require external pull-up resistors on SDA and SCL lines?
Yes, AT24C01-10SC-2.5 requires external pull-up resistors on both SDA and SCL lines because its SDA pin is open-drain and SCL is input-only. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and speed; 4.7 kΩ is commonly used for 100 kHz operation with moderate trace length.
What is the function of the TEST pin on AT24C01-10SC-2.5?
The TEST pin on AT24C01-10SC-2.5 is a factory test input and must be externally tied to either GND or VCC in the final application. It is not used during normal operation and leaving it floating may cause undefined behavior or increased current consumption.
Can AT24C01-10SC-2.5 be used in automotive applications?
The AT24C01-10SC-2.5 is rated for industrial temperature range (-40°C to +85°C) and is not AEC-Q100 qualified. While it may function in some automotive body electronics, Microchip specifies separate automotive-grade variants (e.g., AT24C01-10SI-2.5) for under-hood or safety-critical use - AT24C01-10SC-2.5 is intended for commercial/industrial environments.
How many write cycles can AT24C01-10SC-2.5 endure before failure?
AT24C01-10SC-2.5 is guaranteed for 1 million write cycles per memory location, as confirmed in the "High Reliability" section of its datasheet. This endurance applies across the full operating temperature and voltage range, and is validated using page-write and byte-write methods.
AT24C01-10SC-2.5 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:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 10ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C01-10SC-2.5 FAQ
1.How can I place an order for AT24C01-10SC-2.5 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C01-10SC-2.5 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 AT24C01-10SC-2.5 reliable?
The price and inventory of AT24C01-10SC-2.5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C01-10SC-2.5 is usually 5 days.
3.What payment methods are accepted for AT24C01-10SC-2.5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C01-10SC-2.5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C01-10SC-2.5?
AT24C01-10SC-2.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C01-10SC-2.5 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 AT24C01-10SC-2.5?
For technical support, including AT24C01-10SC-2.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C01-10SC-2.5 requirements.
6.How does Aetrix verify that AT24C01-10SC-2.5 is sourced from the original manufacturer or authorized distributors?
All AT24C01-10SC-2.5 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 AT24C01-10SC-2.5 meets industry standards.
7.What is the process for return or replacement of AT24C01-10SC-2.5?
All AT24C01-10SC-2.5 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C01-10SC-2.5, 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 AT24C01-10SC-2.5 part is unused and in its original packaging.
Return procedure for AT24C01-10SC-2.5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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