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Microchip Technology 24C01C-I/MC
- Part No.:
- 24C01C-I/MC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
24C01C-I/MC.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,888
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Product details
Overview
24C01C-I/MC from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM operating from 4.5V to 5.5V, featuring 16-byte page write buffer, 1 ms max. write cycle time, and industrial temperature range (–40°C to +85°C). It supports cascading up to eight devices on one bus and delivers ultra-low standby current (5 µA max.) for power-sensitive embedded systems including sensor nodes and industrial controllers.
For engineers reviewing the 24C01C-I/MC datasheet, 24C01C-I/MC pinout, 24C01C-I/MC application, or 24C01C-I/MC equivalent, key selection criteria include I²C clock compatibility (100/400 kHz), Schmitt-trigger noise immunity on SDA/SCL, WP pin absence in this variant, and verified 1M endurance cycles with >200-year data retention - all critical for long-life, low-maintenance firmware storage and calibration memory designs.
Technical Context
The 24C01C-I/MC implements a true 2-wire I²C slave interface with hardware address decoding via A0–A2 pins, enabling up to eight devices on a shared bus. Its internal architecture includes a 16-byte page buffer, self-timed erase/write logic, and VCC threshold detection that disables writes below 3.8 V to prevent corruption.
It uses Schmitt-trigger inputs and input filtering (50 ns spike suppression) on SDA and SCL to ensure robust operation in electrically noisy environments. The device does not include a Write Protect (WP) pin in the /MC package variant, and its Test pin is unconnected in normal operation - both confirmed by package-specific pin mapping in DS21201K.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Kbit (128 × 8-bit organization), sufficient for small configuration tables or calibration constants |
| Interface | I²C-compatible 2-wire serial bus, supports standard (100 kHz) and fast (400 kHz) modes |
| Supply Voltage | 4.5V to 5.5V - compatible with legacy 5V logic systems without level shifting |
| Write Cycle Time | ≤1 ms for byte or page writes - enables rapid parameter updates in real-time control loops |
| Endurance | 1,000,000 erase/write cycles - validated for high-frequency logging or counter applications |
| Data Retention | >200 years at +25°C - ensures firmware or calibration data integrity across product lifetime |
| Standby Current | 5 µA max. at VCC = 5.5V - minimizes battery drain in always-on edge sensors |
Pinout & Package
24C01C-I/MC is supplied in an 8-lead MSOP package (3.0 mm × 3.0 mm × 1.0 mm height), RoHS-compliant and Pb-free. Pin 1 is marked by laser indentation per Microchip specification DS21201K-page 28.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip Select Input | LSB of 3-bit hardware address; sets device address bit A8 when cascading multiple units |
| A1 | Chip Select Input | Mid-bit of 3-bit hardware address; sets device address bit A9 in multi-device configurations |
| A2 | Chip Select Input | MSB of 3-bit hardware address; sets device address bit A10 for up to eight 24C01C-I/MC devices on one bus |
| VSS | Ground Reference | Primary return path for all internal circuitry; must be low-impedance to support noise immunity |
| SDA | Serial Data I/O | Open-drain bidirectional line requiring external pull-up; carries address, command, and data |
| SCL | Serial Clock Input | Master-generated clock synchronizing all I²C transfers; Schmitt-triggered for noise rejection |
| Test | Factory Test Terminal | No functional role in application; may be left floating, tied high, or tied low per board layout |
| VCC | Power Supply | +4.5V to +5.5V supply; internal voltage detector disables writes if VCC drops below 3.8V |
Key Features
| Feature | Design Value |
|---|---|
| Page Write Buffer | 16-byte buffer enables burst writes without repeated address overhead, improving I²C bus efficiency |
| Schmitt Trigger Inputs | 0.05×VCC hysteresis on SDA/SCL eliminates false triggering from EMI or ground bounce |
| Cascadability | Hardware address pins (A0–A2) allow up to eight 24C01C-I/MC devices on one I²C bus for 8K-bit contiguous addressing |
| Output Slope Control | Controlled SDA fall time prevents ground bounce during transitions, ensuring signal integrity on shared PCB traces |
| ESD Protection | ≥4000 V HBM rating protects against handling damage during assembly and field service |
Applications
| Industrial Sensor Calibration | Smart Meter Configuration Storage |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients and temperature compensation tables for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed at system boot and during field recalibration via I²C master MCU. Use Value: Enables traceable, field-updatable calibration without firmware reflash; 1M endurance supports daily recalibration over 27 years. |
Use Scenario: Holding tariff schedules, metering thresholds, and communication parameters in utility-grade electricity meters operating in harsh outdoor environments. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter store interfaced to a secure microcontroller over isolated I²C. Use Value: >200-year data retention ensures parameter integrity across meter lifetime; industrial temp rating guarantees operation at –40°C to +85°C ambient. |
| Embedded System Bootloader Settings | Medical Device Usage Logs |
Use Scenario: Saving bootloader configuration flags (e.g., safe mode enable, firmware rollback version, debug port state) in diagnostic equipment and test instruments. IC Role / Device Role / Timing Role: Low-power persistent settings register accessed only at power-on reset or user-initiated recovery. Use Value: 5 µA standby current extends battery backup life; 1 ms write time allows fast setting update during user interaction. |
Use Scenario: Recording timestamped usage events (e.g., actuation count, error codes, maintenance intervals) in Class II medical infusion pumps and ventilators. IC Role / Device Role / Timing Role: Fail-safe event logger with atomic write capability, where each log entry is written as a single byte or 16-byte page. Use Value: Self-timed write cycle prevents data corruption during unexpected power loss; ESD protection safeguards against clinical ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C01D-SSHM-T | Same 1 Kbit capacity, I²C interface, and 16-byte page size; operates from 1.7V–5.5V (wider VCC range); includes dedicated WP pin | Supports single-supply battery-powered systems down to 1.7V; WP pin enables hardware write lockout not available on 24C01C-I/MC | Select when ultra-low-voltage operation or mandatory hardware write protection is required |
| BR24G01FJ-WE2 | 1 Kbit I²C EEPROM with 1.7V–5.5V supply; built-in write protect (WP) and software write protection; 1.2 ms max. write time | Offers dual-layer write protection (hardware + software); optimized for automotive AEC-Q100 Grade 2 (–40°C to +105°C) | Select for automotive or safety-critical applications requiring certified write-lock mechanisms |
Compared with AT24C01D-SSHM-T and BR24G01FJ-WE2, the 24C01C-I/MC provides proven industrial reliability at 5V operation without WP functionality - making it optimal for cost-sensitive, fixed-voltage embedded systems where write protection is managed in firmware.
Availability
24C01C-I/MC is available at Aetrix Electronics and suitable for industrial sensor calibration, smart meter configuration storage, and embedded bootloader settings requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for 24C01C-I/MC 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 Inc. is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and nonvolatile memory solutions for industrial, automotive, and consumer markets.
The 24C01C belongs to Microchip's legacy I²C EEPROM product line, designed specifically for reliable, low-power, pin-efficient configuration and calibration storage in resource-constrained embedded systems.
FAQ
What is the maximum I²C clock frequency supported by the 24C01C-I/MC?
The 24C01C-I/MC supports both standard-mode (100 kHz) and fast-mode (400 kHz) I²C operation, as specified in DS21201K-page 3, Table 1-2. Its AC timing parameters - including THIGH (600 ns min.), TLOW (1300 ns min.), and TR/TF (300 ns max. rise/fall) - are fully characterized for reliable 400 kHz operation across the industrial temperature range (–40°C to +85°C).
Does the 24C01C-I/MC have a Write Protect (WP) pin?
No, the 24C01C-I/MC does not include a Write Protect (WP) pin. Per DS21201K-page 5, Table 2-1, the /MC package variant (8-lead MSOP) has pins A0–A2, VSS, SDA, SCL, Test, and VCC - with no WP terminal. Write protection must be implemented in software via the device's internal write-enable protocol or external system-level controls.
How many 24C01C-I/MC devices can be connected on the same I²C bus?
Up to eight 24C01C-I/MC devices can be connected on a single I²C bus using unique combinations of A0, A1, and A2 address pins. As confirmed in DS21201K-page 2 and page 5, these three hardware address bits form the slave address (1010 A2 A1 A0 R/W), allowing full 3-bit address space utilization in the 8-lead MSOP package.
What is the page write size and maximum write time for the 24C01C-I/MC?
The 24C01C-I/MC features a 16-byte page write buffer and guarantees a maximum write cycle time of 1 ms for both byte and page writes (DS21201K-page 1, Features; page 3, Table 1-2, TWC). This enables efficient burst programming of calibration data or configuration blocks without waiting for individual byte commits.
Is the 24C01C-I/MC suitable for automotive applications?
The 24C01C-I/MC is rated for industrial temperature (–40°C to +85°C), not automotive grade. While it shares core functionality with automotive variants like the 24C01C-E/MC (–40°C to +125°C), the -I suffix explicitly denotes industrial qualification. For automotive use, the -E/MC variant or AEC-Q100-qualified alternatives such as BR24G01FJ-WE2 should be selected instead.
24C01C-I/MC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- 1ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x3)
24C01C-I/MC FAQ
1.How can I place an order for 24C01C-I/MC through Aetrix?
Please submit a Request for Quotation (RFQ) for 24C01C-I/MC 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 24C01C-I/MC reliable?
The price and inventory of 24C01C-I/MC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24C01C-I/MC is usually 5 days.
3.What payment methods are accepted for 24C01C-I/MC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24C01C-I/MC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24C01C-I/MC?
24C01C-I/MC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24C01C-I/MC 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 24C01C-I/MC?
For technical support, including 24C01C-I/MC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24C01C-I/MC requirements.
6.How does Aetrix verify that 24C01C-I/MC is sourced from the original manufacturer or authorized distributors?
All 24C01C-I/MC 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 24C01C-I/MC meets industry standards.
7.What is the process for return or replacement of 24C01C-I/MC?
All 24C01C-I/MC units undergo pre-shipment inspection (PSI). If there is an issue with 24C01C-I/MC, 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 24C01C-I/MC part is unused and in its original packaging.
Return procedure for 24C01C-I/MC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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