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Microchip Technology AT24C01-10SI-2.7
- Part No.:
- AT24C01-10SI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C01-10SI-2.7.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,876
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Product details
Overview
AT24C01-10SI-2.7 from Microchip Technology (formerly Atmel) is a 1K-bit (128 × 8) serial EEPROM IC with 2-wire I²C-compatible interface, operating from 2.7V to 5.5V, supporting 100 kHz clock rate at 2.7V and offering 4-byte page write capability. It delivers high reliability with 1 million write cycles and 100-year data retention, housed in an 8-lead JEDEC SOIC package for industrial temperature range (–40°C to +85°C).
For engineers reviewing the AT24C01-10SI-2.7 datasheet, AT24C01-10SI-2.7 pinout, AT24C01-10SI-2.7 application, or AT24C01-10SI-2.7 equivalent, key selection considerations include its 2.7V minimum supply, SOIC-8 footprint, I²C timing compliance at industrial temperature, page-write efficiency, and automotive-grade availability variants.
Technical Context
The AT24C01-10SI-2.7 implements a fixed 7-bit I²C slave address with three hardware address inputs (A0–A2), enabling up to eight devices on one bus. Its internal memory is organized as 128 individually addressable 8-bit words, accessed via byte or 4-byte page writes with self-timed 10 ms max write cycle.
It uses open-drain SDA and input-capable SCL pins compliant with I²C bus electrical specifications, supports acknowledge polling during write cycles, and enters low-power standby mode after STOP condition or power-up - with typical standby current of 1.6 µA at 2.7V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 × 8), sufficient for small configuration storage or calibration data in microcontroller systems. |
| Supply Voltage Range | 2.7V to 5.5V - enables direct interfacing with 3.3V and 5V logic without level shifting. |
| I²C Clock Frequency | 100 kHz at 2.7V - ensures robust timing margin in noise-sensitive industrial environments. |
| Page Write Capacity | 4 bytes per write cycle - reduces bus transactions vs. byte writes, improving firmware efficiency. |
| Write Endurance | 1 million cycles - supports frequent field updates such as metering logs or sensor calibration tables. |
| Data Retention | 100 years at +25°C - guarantees long-term nonvolatile storage without refresh in unpowered systems. |
| Operating Temperature | –40°C to +85°C - qualified for industrial control, HVAC, and automotive body electronics applications. |
| Standby Current | 1.6 µA typical at 2.7V - minimizes quiescent power in battery-backed or energy-harvesting designs. |
Pinout & Package
AT24C01-10SI-2.7 is supplied in an 8-lead JEDEC-standard SOIC package (package code 8S1), 0.150" wide, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Hardware Address Inputs | Set 3 LSBs of 7-bit I²C slave address; tied high/low to enable up to 8 devices on same bus. |
| SDA | Serial Data I/O | Open-drain bidirectional line - requires external pull-up; supports wire-OR with other I²C devices. |
| SCL | Serial Clock Input | Positive-edge clock input for data sampling; negative-edge for data output - defines I²C timing window. |
| VCC | Power Supply | 2.7V–5.5V main supply; powers internal logic and memory array - decoupling capacitor required. |
| GND | Ground Reference | Return path for VCC and signal currents; must be low-impedance connection to minimize noise coupling. |
| TEST | Factory Test Input | Internally connected to GND or VCC during production test; left unconnected in normal operation. |
| NC | No Connect | Three pins (1, 2, 3 in SOIC) are unused - no internal connection; must remain floating or grounded per layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| 2-Wire Serial Interface | Fully compatible with standard I²C protocol - simplifies integration with ARM Cortex-M, PIC, and ESP32 host controllers. |
| 4-Byte Page Write Mode | Reduces I²C transaction overhead by 75% vs. sequential byte writes - accelerates firmware update routines. |
| Self-Timed Write Cycle | Fixed 10 ms max duration - eliminates need for external delay timers or polling loops in host firmware. |
| High Reliability | 1M write cycles and 100-year retention - meets long-life requirements in industrial PLCs and smart meters. |
| Industrial Temperature Range | –40°C to +85°C operation - validated across full range without derating - suitable for factory automation nodes. |
Applications
| Smart Meter Calibration Storage | Industrial PLC Configuration Backup |
|---|---|
|
Use Scenario: Storing meter-specific calibration coefficients and tariff tables that persist across power loss. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed via I²C during boot or recalibration events. Use Value: Enables field-updatable calibration without requiring external flash or battery-backed SRAM. |
Use Scenario: Retaining ladder logic configuration, I/O mapping, and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Persistent configuration register bank accessed during cold start or firmware reset. Use Value: Eliminates manual reconfiguration after power interruption - improves system uptime and serviceability. |
| Automotive Body Control Module | IoT Sensor Node Identity Storage |
|
Use Scenario: Saving seat position presets, mirror angles, and lighting profiles in 12V automotive body electronics. IC Role / Device Role / Timing Role: Low-voltage EEPROM interfaced directly to 3.3V MCU over I²C bus. Use Value: Supports extended temperature operation and meets AEC-Q100 stress requirements when used in qualified variants. |
Use Scenario: Storing unique device identifiers (UID), MAC addresses, and sensor calibration offsets in battery-powered edge nodes. IC Role / Device Role / Timing Role: Secure, low-power persistent memory accessed infrequently during initialization. Use Value: 1.6 µA standby current extends coin-cell battery life beyond 10 years in always-on monitoring applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M24C01-RMN6TP | 1K-bit I²C EEPROM, 1.7V–5.5V supply, 400 kHz max clock, SOIC-8 package, same pinout. | Higher speed (400 kHz) and wider voltage range - better suited for 1.8V systems or faster host MCUs. | Select when design requires 400 kHz I²C timing or operation below 2.7V; verify TEST pin handling differs (not present on M24C01). |
| BR24G01FJ-WE2 | 1K-bit I²C EEPROM, 1.6V–5.5V, 400 kHz, TSSOP-8, built-in write protection and WP pin. | Includes hardware write-protect (WP) pin and enhanced ESD tolerance - ideal for field-upgrade-critical systems. | Choose when hardware-level write lockout is required; note TSSOP-8 footprint differs from SOIC-8 of AT24C01-10SI-2.7. |
Compared with M24C01-RMN6TP and BR24G01FJ-WE2, the AT24C01-10SI-2.7 offers proven industrial-temperature reliability in JEDEC SOIC-8 with minimal BOM change, while trading off higher-speed I²C support and hardware write protection for cost-effective, drop-in compatibility in legacy 2.7V+ designs.
Availability
AT24C01-10SI-2.7 is available at Aetrix Electronics and suitable for industrial control systems, smart metering platforms, and automotive body electronics requiring stable component supply, long-lifecycle assurance, and consistent SOIC-8 packaging.
Supply support for AT24C01-10SI-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 memory solutions, with a focus on embedded control and connectivity.
The AT24C01-10SI-2.7 belongs to Microchip's legacy serial EEPROM product line, designed for reliable, low-power nonvolatile storage in resource-constrained embedded systems across industrial, automotive, and consumer applications.
FAQ
What is the maximum I²C clock frequency supported by AT24C01-10SI-2.7?
The AT24C01-10SI-2.7 supports up to 100 kHz I²C clock frequency when operated at 2.7V. This is specified in the AC Characteristics table under fSCL for 2.7V, 2.5V, and 1.8V versions. While higher-speed variants exist in the AT24Cxx family, the AT24C01-10SI-2.7 is rated specifically for 100 kHz at its minimum 2.7V supply - ensuring timing margin and noise immunity in industrial environments.
Does AT24C01-10SI-2.7 require external pull-up resistors on SDA and SCL lines?
Yes, AT24C01-10SI-2.7 requires external pull-up resistors on both SDA and SCL lines because its SDA pin is open-drain and SCL is a CMOS input. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and desired rise time. The AT24C01-10SI-2.7 datasheet specifies maximum input capacitance of 6 pF (SCL) and 8 pF (SDA), guiding proper resistor selection to meet I²C timing requirements.
Can AT24C01-10SI-2.7 be used in automotive applications?
The AT24C01-10SI-2.7 is rated for industrial temperature (–40°C to +85°C) and is not AEC-Q100 qualified. However, Microchip offers automotive-grade variants such as AT24C01-10SE-2.7 (extended temp –40°C to +125°C) and lead-free industrial versions. For automotive body electronics within industrial temp limits, AT24C01-10SI-2.7 may be used subject to system-level qualification - but the AT24C01-10SE-2.7 is recommended for under-hood or safety-critical modules.
How many devices can share the same I²C bus with AT24C01-10SI-2.7?
Up to eight AT24C01-10SI-2.7 devices can share one I²C bus using the A0, A1, and A2 address pins to configure unique 3-bit hardware addresses. Each pin can be tied to VCC or GND, yielding 2³ = 8 possible combinations. The base 7-bit I²C address is 1010xxx, where xxx corresponds to A2–A0, allowing collision-free addressing without software arbitration.
What is the purpose of the TEST pin on AT24C01-10SI-2.7?
The TEST pin on AT24C01-10SI-2.7 is reserved for factory testing and must be left unconnected (floating) or tied to GND/VCC per board layout guidelines - it has no function in normal operation. Datasheet Pin Description states it is a "Test Input (GND or VCC)" and confirms no internal connection exists during active use. Leaving it floating is acceptable, but grounding is preferred to avoid noise coupling in high-noise environments.
AT24C01-10SI-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:
- 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:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C01-10SI-2.7 FAQ
1.How can I place an order for AT24C01-10SI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C01-10SI-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 AT24C01-10SI-2.7 reliable?
The price and inventory of AT24C01-10SI-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 AT24C01-10SI-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C01-10SI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C01-10SI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C01-10SI-2.7?
AT24C01-10SI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C01-10SI-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 AT24C01-10SI-2.7?
For technical support, including AT24C01-10SI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C01-10SI-2.7 requirements.
6.How does Aetrix verify that AT24C01-10SI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C01-10SI-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 AT24C01-10SI-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C01-10SI-2.7?
All AT24C01-10SI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C01-10SI-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 AT24C01-10SI-2.7 part is unused and in its original packaging.
Return procedure for AT24C01-10SI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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