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Microchip Technology AT24C01-10SC
- Part No.:
- AT24C01-10SC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C01-10SC.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,246
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Product details
Overview
AT24C01-10SC from Atmel (now Microchip) is a 1K-bit (128 × 8) serial EEPROM with 2-wire I²C-compatible interface, rated for 2.7V to 5.5V operation, 100 kHz clock frequency at 2.7V, and housed in an 8-pin JEDEC SOIC package. It delivers high reliability with 1 million write cycles and 100-year data retention, used for parameter storage in embedded controllers, sensor calibration modules, and power management systems.
For engineers reviewing the AT24C01-10SC datasheet, AT24C01-10SC pinout, AT24C01-10SC application, or AT24C01-10SC equivalent, key selection considerations include its 2.7V–5.5V supply range, 4-byte page write capability, self-timed 10 ms max write cycle, and compatibility with standard I²C bus timing at 100 kHz under low-voltage conditions.
Technical Context
The AT24C01-10SC implements a fixed 7-bit slave address with three hardware address inputs (A0–A2), enabling up to eight devices on a single I²C bus. Its memory is organized as 128 individually addressable bytes, accessed via sequential or random read/write operations using START/STOP protocols and ACK handshaking.
It supports byte and 4-byte page write modes, with internal address incrementing during page writes and automatic rollover at page boundaries. Standby current is 1.6 µA typical at 2.7V, and the SDA/SCL pins are open-drain with external pull-up requirements per I²C specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 × 8), sufficient for storing device configuration, calibration coefficients, or small firmware patches |
| Supply Voltage Range | 2.7V to 5.5V - enables direct interfacing with 3.3V and 5V microcontrollers without level shifting |
| Interface Speed | 100 kHz maximum at 2.7V - meets I²C Standard Mode timing for robust low-power communication |
| Write Cycle Time | 10 ms maximum - defines minimum interval between successive write commands; requires polling or timeout handling |
| Endurance | 1 million write cycles - supports frequent field updates such as logging or counter increments over product lifetime |
| Data Retention | 100 years at +25°C - ensures long-term validity of stored settings without refresh |
| Operating Temperature | 0°C to +70°C (Commercial grade) - validated for use in consumer and industrial control environments |
Pinout & Package
AT24C01-10SC is supplied in an 8-pin JEDEC SOIC package (package code 8S1), measuring 4.90 mm × 3.90 mm × 1.75 mm, with gull-wing leads and standard 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A0) | Hardware Address Input | Configures LSB of 7-bit I²C slave address; tied high/low to select one of eight possible addresses on shared bus |
| 2 (A1) | Hardware Address Input | Configures middle bit of slave address; enables multi-device addressing without software reconfiguration |
| 3 (A2) | Hardware Address Input | Configures MSB of slave address; required for bus arbitration when multiple AT24C01-10SC devices coexist |
| 4 (GND) | Ground Reference | Common return path for VCC and I/O signals; must be low-impedance to ensure noise immunity during write cycles |
| 5 (VCC) | Power Supply | Accepts 2.7V–5.5V; decoupling capacitor (0.1 µF) recommended within 10 mm to suppress supply transients during write |
| 6 (TEST) | Factory Test Input | Internally connected to GND or VCC during production test; must be externally tied to GND or VCC per design - floating not allowed |
| 7 (SCL) | Serial Clock Input | Open-drain input synchronized to master clock; controls timing of data sampling and ACK generation on SDA |
| 8 (SDA) | Serial Data I/O | Open-drain bidirectional line; requires external pull-up resistor (typically 2.2–10 kΩ) to VCC for proper I²C bus operation |
Key Features
| Feature | Design Value |
|---|---|
| 4-byte page write mode | Reduces total write time by up to 75% vs. four separate byte writes, minimizing bus occupancy and system latency |
| Self-timed write cycle (10 ms max) | Eliminates need for external wait-state logic; host can poll ACK or use fixed delay before next access |
| ESD protection >3000V HBM | Enables safe handling and board-level integration without additional transient suppression components |
| Low standby current (1.6 µA typ @ 2.7V) | Supports battery-powered applications where quiescent power budget is constrained to sub-µA levels |
| I²C Standard Mode compliance | Ensures interoperability with legacy and modern microcontrollers, FPGAs, and PMICs supporting 100 kHz I²C |
Applications
| Smart Meter Calibration Storage | Industrial PLC Configuration Memory |
|---|---|
Use Scenario: Storing meter-specific calibration constants, tariff tables, and firmware revision identifiers across power cycles. IC Role / Device Role / Timing Role: Nonvolatile parameter register accessed during boot and runtime via I²C by metering SoC. Use Value: Enables field recalibration without firmware update; retains values through 10+ year deployments with no maintenance. |
Use Scenario: Holding user-defined I/O mapping, PID tuning parameters, and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Persistent configuration store updated only during commissioning or maintenance, read at startup. Use Value: Eliminates manual DIP-switch setup; allows remote parameter backup/restore via controller's I²C master interface. |
| Consumer Appliance Settings Retention | Medical Device Usage Log |
Use Scenario: Saving user preferences (temperature setpoints, timer values, language selection) in refrigerators, ovens, and HVAC units. IC Role / Device Role / Timing Role: Low-power EEPROM interfaced to 3.3V MCU during idle periods; accessed infrequently but reliably. Use Value: Maintains settings through brownouts and battery swaps; withstands 1M+ power-cycle events over appliance lifetime. |
Use Scenario: Recording cumulative operating hours, error codes, and calibration timestamps in portable diagnostic equipment. IC Role / Device Role / Timing Role: Write-once-per-session data logger triggered by MCU after each clinical use cycle. Use Value: Provides auditable usage history compliant with IEC 62304; immune to accidental overwrite due to page-write boundary control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Microchip 24LC01B-I/P | Same 1K-bit capacity, 2.5V–5.5V range, 100 kHz speed; PDIP-only packaging, no -10SC SOIC variant | Lacks 8S1 SOIC footprint; requires PCB redesign if replacing AT24C01-10SC in space-constrained layouts | Select when legacy through-hole assembly is preferred and voltage margin ≥2.5V is acceptable |
| ON Semiconductor CAT24C01HU4I-GT3 | 1K-bit, 1.7V–5.5V range, 400 kHz max (at 5V), TSSOP-8 package; higher ESD rating (4000V HBM) | Wider voltage range and faster speed, but timing behavior differs at 2.7V - requires validation at target VCC | Choose for new designs needing extended low-voltage headroom or higher-speed burst writes |
Compared with 24LC01B-I/P and CAT24C01HU4I-GT3, the AT24C01-10SC offers guaranteed 100 kHz operation down to 2.7V in JEDEC SOIC, making it optimal for cost-sensitive, surface-mount 3.3V embedded systems requiring proven field reliability.
Availability
AT24C01-10SC is available at Aetrix Electronics and suitable for smart meter calibration storage, industrial PLC configuration memory, and consumer appliance settings retention requiring stable component supply across multi-year production cycles.
Supply support for AT24C01-10SC 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 (which acquired Atmel in 2016) is a leading provider of microcontrollers, analog, and memory solutions, emphasizing industrial-grade reliability and long-term product availability.
The AT24C01 series was designed for low-power, nonvolatile data storage in resource-constrained embedded systems, targeting applications where I²C simplicity, small footprint, and guaranteed endurance outweigh high-speed or high-density requirements.
FAQ
What is the maximum clock frequency supported by AT24C01-10SC at 2.7V?
The AT24C01-10SC supports a maximum clock frequency of 100 kHz when operated at 2.7V. This is specified in the AC Characteristics table under "2.7-, 2.5-, 1.8-volt" column for fSCL. The device does not guarantee 400 kHz operation below 4.5V; attempting higher speeds may result in timing violations or failed ACK responses. Always verify SCL rise/fall times and bus capacitance against the tR/tF limits in the datasheet when designing with AT24C01-10SC.
Does AT24C01-10SC require external pull-up resistors on SDA and SCL lines?
Yes, AT24C01-10SC requires external pull-up resistors on both SDA and SCL lines because these pins are open-drain outputs. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and desired rise time. For a standard 100 kHz I²C bus with ≤400 pF load, 4.7 kΩ is commonly used. Failure to install pull-ups will prevent proper signal transitions and cause communication failure with the AT24C01-10SC.
Can AT24C01-10SC be used in automotive applications?
No, AT24C01-10SC is rated for commercial temperature range (0°C to +70°C) and is not qualified for automotive use. While the broader AT24C01 family includes automotive-grade variants (e.g., AT24C01-10SI), the AT24C01-10SC specifically carries the 'C' suffix indicating commercial grade. For automotive applications requiring AEC-Q100 qualification and extended temperature support (-40°C to +125°C), a different variant such as AT24C01-10SI must be selected instead of AT24C01-10SC.
How many write cycles can AT24C01-10SC endure before failure?
The AT24C01-10SC is rated for 1 million write cycles per memory location, as confirmed in the "High Reliability" section and AC Characteristics table. This endurance applies to individual byte addresses and assumes operation within specified voltage and temperature ranges. Wear leveling is not implemented internally; therefore, repeated writes to the same address will consume endurance budget linearly. Applications requiring frequent updates should distribute writes across multiple addresses or implement software wear leveling to maximize lifetime of the AT24C01-10SC.
What is the function of the TEST pin on AT24C01-10SC?
The TEST pin on AT24C01-10SC is a factory test input that must be externally tied to either GND or VCC - it must never be left floating. During normal operation, it has no functional role and does not affect device behavior. The datasheet specifies that TEST should be connected to GND or VCC depending on the test configuration used during manufacturing; for most designs, tying it to GND is recommended unless otherwise directed by application notes. Leaving TEST unconnected may cause undefined behavior or increased susceptibility to noise in the AT24C01-10SC.
AT24C01-10SC 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:
- 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C01-10SC FAQ
1.How can I place an order for AT24C01-10SC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C01-10SC 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 AT24C01-10SC reliable?
The price and inventory of AT24C01-10SC 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 is usually 5 days.
3.What payment methods are accepted for AT24C01-10SC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C01-10SC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C01-10SC?
AT24C01-10SC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C01-10SC 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 AT24C01-10SC?
For technical support, including AT24C01-10SC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C01-10SC requirements.
6.How does Aetrix verify that AT24C01-10SC is sourced from the original manufacturer or authorized distributors?
All AT24C01-10SC 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 AT24C01-10SC meets industry standards.
7.What is the process for return or replacement of AT24C01-10SC?
All AT24C01-10SC units undergo pre-shipment inspection (PSI). If there is an issue with AT24C01-10SC, 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 AT24C01-10SC part is unused and in its original packaging.
Return procedure for AT24C01-10SC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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