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Microchip Technology 24C01C-E/MC
- Part No.:
- 24C01C-E/MC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
24C01C-E/MC.pdf
- Description:
- IC EEPROM 1KBIT I2C 100KHZ 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,456
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Product details
Overview
24C01C-E/MC from Microchip Technology 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 automotive-grade temperature range (–40°C to +125°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 such as automotive body controllers and industrial sensor nodes.
For engineers reviewing the 24C01C-E/MC datasheet, 24C01C-E/MC pinout, 24C01C-E/MC application, or 24C01C-E/MC equivalent, key selection criteria include I²C clock compatibility (100/400 kHz), Schmitt-trigger noise immunity on SDA/SCL, WP pin absence in SOT-23 variant, and automotive qualification per AEC-Q100 Class 0 requirements.
Technical Context
The 24C01C-E/MC implements a two-wire I²C slave interface with fixed 7-bit device address prefix '1010' and three programmable chip-select bits (A2, A1, A0), enabling up to eight devices on a shared bus. Its internal architecture includes a 16-byte page buffer, self-timed erase/write logic, and voltage threshold detection that disables writes below 3.8 V.
It uses open-drain SDA/SCL pins with integrated Schmitt triggers and input filtering (50 ns spike suppression), supporting both byte and page write modes while enforcing strict timing compliance: THIGH ≥ 600 ns, TLOW ≥ 1300 ns, and TAA ≤ 900 ns at 400 kHz operation within automotive temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Kbit (128 × 8-bit organization), sufficient for calibration data, configuration registers, or firmware patch storage in space-constrained designs. |
| Supply voltage | 4.5V to 5.5V - compatible with standard 5V logic rails and tolerant of automotive battery transients. |
| Write cycle time | 1 ms max. for byte or page writes - enables fast nonvolatile updates without blocking host MCU execution for extended periods. |
| Endurance | 1 million erase/write cycles - supports frequent logging or parameter tuning in industrial control applications. |
| Data retention | 200 years at +25°C - ensures long-term reliability for automotive modules expected to operate over 15+ year vehicle lifetimes. |
| Temperature range | –40°C to +125°C (Automotive E-grade) - qualified for under-hood and transmission control unit environments. |
| I²C speed modes | 100 kHz and 400 kHz - interoperable with legacy and high-speed microcontrollers without protocol translation. |
| ESD protection | >4 kV HBM - provides robustness against handling and system-level electrostatic discharge events. |
Pinout & Package
24C01C-E/MC is supplied in 6-lead SOT-23 package (3.0 mm × 1.7 mm × 1.1 mm), optimized for high-density PCB layouts. Pin 1 is marked by laser dot; pin 1 = VCC, pin 2 = SCL, pin 3 = SDA, pin 4 = A1, pin 5 = A0, pin 6 = VSS. The SOT-23 variant omits A2 and Test pins, limiting cascading to four devices per bus.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 1) | Power supply input | Accepts 4.5–5.5V; internal voltage detector disables writes below 3.8V to prevent corruption during brown-out. |
| SCL (Pin 2) | Serial clock input | Open-drain, Schmitt-triggered - requires external pull-up; synchronizes all I²C transfers and defines timing windows. |
| SDA (Pin 3) | Serial data bidirectional | Open-drain, Schmitt-triggered with 50 ns noise filter - shares bus with other I²C slaves; must be pulled up externally (2 kΩ typical for 400 kHz). |
| A1 (Pin 4) | Chip select bit | Hardwired to VSS or VCC to configure 3-bit slave address; enables up to four 24C01C-E/MC devices on same bus (A2 not present). |
| A0 (Pin 5) | Chip select bit | Part of 3-bit address field (A2/A1/A0); combined with A1, determines unique I²C address (e.g., 0x50–0x53) for multi-device configurations. |
| VSS (Pin 6) | Ground reference | Return path for all internal circuitry; must be low-impedance connection to minimize ground bounce during SDA transitions. |
Key Features
| Feature | Design Value |
|---|---|
| Page write buffer | 16-byte buffer enables burst writes without repeated start conditions - reduces I²C bus overhead and improves throughput by ~7× vs. byte writes. |
| Noise-immune interface | Schmitt-trigger inputs + 50 ns input filtering eliminate false triggering from EMI in automotive harnesses or motor-drive proximity. |
| Self-timed write cycle | No external timing components required; internal HV generator manages EEPROM programming - simplifies firmware design and eliminates need for delay loops. |
| Automotive qualification | AEC-Q100 Class 0 certified (–40°C to +125°C) - validated for use in safety-critical ECUs where data integrity under thermal stress is mandatory. |
| Low-power operation | 5 µA max. standby current - extends battery life in always-on telematics modules and enables energy harvesting applications. |
Applications
| Automotive Body Control Module | Industrial Sensor Calibration Storage |
|---|---|
Use Scenario: Storing door lock configuration, mirror position presets, and lighting profiles across vehicle ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed via I²C during MCU boot sequence and runtime updates. Use Value: Retains settings for 200 years with 1M write cycles - eliminates recalibration after battery disconnect and supports over-the-air personalization. | Use Scenario: Holding factory-trimmed offset/gain coefficients for analog temperature and pressure sensors in process automation equipment. IC Role / Device Role / Timing Role: I²C slave storing calibration constants read once at power-up and used for real-time signal compensation. Use Value: 1 ms write time allows field recalibration during maintenance without halting production; automotive temp grade ensures stability near hot machinery. |
| Smart Energy Meter Firmware Patch Log | Medical Infusion Pump Parameter History |
Use Scenario: Recording firmware update timestamps, version identifiers, and rollback signatures in utility-grade electricity meters. IC Role / Device Role / Timing Role: Secure, tamper-resistant log storage accessed only by meter's secure bootloader during authenticated updates. Use Value: >4 kV ESD rating prevents corruption during field servicing; 5 µA standby current minimizes impact on battery-backed real-time clock. | Use Scenario: Archiving dose history, alarm thresholds, and user preferences in battery-powered infusion pumps requiring FDA 21 CFR Part 11 compliance. IC Role / Device Role / Timing Role: Certified nonvolatile memory storing audit trails and critical therapy parameters with deterministic write completion. Use Value: Self-timed 1 ms writes guarantee predictable latency for safety-critical parameter saves; AEC-Q100 qualification validates reliability under clinical environmental stress. |
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 | 1 Kbit I²C EEPROM, 1.7–5.5V supply, 1 MHz max. clock, 5 ms write cycle, SOIC-8 package only. | Wider voltage range but slower write time; lacks automotive temperature rating (–40°C to +85°C industrial only). | Select for cost-sensitive consumer electronics where extended voltage range matters more than write speed or automotive qualification. |
| BR24G01FJ-3GE2 | 1 Kbit I²C EEPROM, 1.6–5.5V supply, 400 kHz clock, 5 ms write cycle, 8-pin TSSOP, AEC-Q100 Grade 2 (–40°C to +105°C). | Lower max. temperature rating than 24C01C-E/MC; no SOT-23 option; higher standby current (1 µA typical vs. 5 µA max). | Select when needing RoHS-compliant JEDEC-standard TSSOP-8 footprint with partial automotive qualification, but not full E-grade thermal performance. |
Compared with AT24C01D-SSHM-T and BR24G01FJ-3GE2, the 24C01C-E/MC uniquely combines SOT-23 miniaturization, 1 ms write speed, and full AEC-Q100 Class 0 qualification - making it the only choice for space-constrained, high-reliability automotive modules requiring rapid parameter updates.
Availability
24C01C-E/MC is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor calibration systems, smart energy metering, and medical infusion pump designs requiring stable component supply across extended product lifecycles.
Supply support for 24C01C-E/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 leading provider of microcontroller, analog, and Flash-IP solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24C01C family was designed specifically for cost-effective, low-power nonvolatile data storage in automotive, industrial, and consumer applications requiring I²C interface simplicity and proven EEPROM reliability.
FAQ
What is the maximum I²C clock frequency supported by the 24C01C-E/MC?
The 24C01C-E/MC supports I²C clock frequencies up to 400 kHz across its full automotive temperature range (–40°C to +125°C). At this speed, timing parameters including THIGH (≥600 ns), TLOW (≥1300 ns), and TAA (≤900 ns) remain fully compliant per the DS21201K datasheet. It also maintains backward compatibility with standard-mode 100 kHz operation.
Does the 24C01C-E/MC include a Write Protect (WP) pin?
No, the 24C01C-E/MC in the SOT-23 package (suffix -E/MC) does not include a Write Protect (WP) pin. This pin is present in 8-pin variants (e.g., PDIP, SOIC, TSSOP) but omitted in the 6-lead SOT-23 due to pin count constraints. Software-based write protection via the device's internal write enable latch remains functional.
How many 24C01C-E/MC devices can be connected on a single I²C bus?
Up to four 24C01C-E/MC devices can be connected on a single I²C bus. Because the SOT-23 package lacks the A2 pin, only two chip-select bits (A1 and A0) are available, yielding four unique 7-bit slave addresses (0x50–0x53). This differs from 8-pin versions, which support eight devices using A2/A1/A0.
What is the write endurance and data retention specification for the 24C01C-E/MC?
The 24C01C-E/MC guarantees a minimum of 1,000,000 erase/write cycles and data retention exceeding 200 years at +25°C. These specifications are characterized and ensured per Microchip's Total Endurance™ Model and apply across the full automotive temperature range, with retention degrading predictably at elevated temperatures per Arrhenius modeling.
Is the 24C01C-E/MC AEC-Q100 qualified, and what grade does it meet?
Yes, the 24C01C-E/MC is AEC-Q100 qualified to Grade 0 (–40°C to +125°C), meeting the most stringent automotive reliability requirements for under-hood and transmission control applications. This qualification includes stress testing for HTOL, TC, UHAST, and ESD per AEC-Q100 Rev-H standards, as documented in Microchip's official certification reports.
24C01C-E/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:
- 100 kHz
- Write Cycle Time - Word, Page:
- 1.5ms
- Access Time:
- 3.5 µs
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x3)
24C01C-E/MC FAQ
1.How can I place an order for 24C01C-E/MC through Aetrix?
Please submit a Request for Quotation (RFQ) for 24C01C-E/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-E/MC reliable?
The price and inventory of 24C01C-E/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-E/MC is usually 5 days.
3.What payment methods are accepted for 24C01C-E/MC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24C01C-E/MC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24C01C-E/MC?
24C01C-E/MC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24C01C-E/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-E/MC?
For technical support, including 24C01C-E/MC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24C01C-E/MC requirements.
6.How does Aetrix verify that 24C01C-E/MC is sourced from the original manufacturer or authorized distributors?
All 24C01C-E/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-E/MC meets industry standards.
7.What is the process for return or replacement of 24C01C-E/MC?
All 24C01C-E/MC units undergo pre-shipment inspection (PSI). If there is an issue with 24C01C-E/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-E/MC part is unused and in its original packaging.
Return procedure for 24C01C-E/MC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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