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Microchip Technology 24C01C-I/P
- Part No.:
- 24C01C-I/P
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
24C01C-I/P.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:903
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Product details
Overview
24C01C-I/P 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, Schmitt-trigger inputs for noise immunity, and industrial temperature range (−40°C to +85°C). It serves as nonvolatile configuration storage in microcontroller-based systems requiring low-power, space-constrained, bus-cascadable memory.
For engineers reviewing the 24C01C-I/P datasheet, 24C01C-I/P pinout, 24C01C-I/P application, or 24C01C-I/P equivalent, this page delivers verified electrical specs, validated PDIP-8 pin mapping, real-world use cases in power management and sensor calibration, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The 24C01C-I/P implements a true I²C slave interface with fixed 7-bit address prefix '1010', three hardware-selectable address bits (A0–A2), and R/W bit control. Its internal architecture includes an address pointer, 16-byte page buffer, HV generator for EEPROM programming, and VCC threshold detector disabling writes below 3.8 V.
It supports both byte and page write modes with self-timed erase/write cycles, uses open-drain SDA/SCL with external pull-ups, and incorporates input filtering and slope control to suppress ground bounce and EMI-enabling reliable operation on noisy industrial buses up to 400 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Kbit (128 × 8-bit array), sufficient for firmware flags, calibration coefficients, or device ID storage |
| Interface | I²C™-compatible 2-wire serial bus, compatible with standard microcontroller I²C peripherals without protocol translation |
| Write speed | 1 ms max. byte/page write cycle time-enables rapid parameter updates without blocking host CPU for >1 ms |
| Supply voltage | 4.5V to 5.5V-matches legacy 5V logic systems and avoids level-shifting requirements |
| Standby current | 5 µA max.-supports battery-backed or energy-harvesting applications with multi-year retention |
| Data retention | >200 years at 25°C-ensures long-term reliability in unattended infrastructure equipment |
| Endurance | 1 million erase/write cycles-validates use in frequently updated logging or counter applications |
| Temperature range | Industrial: −40°C to +85°C-qualified for deployment in factory automation, HVAC, and industrial PLCs |
Pinout & Package
24C01C-I/P is supplied in 8-lead PDIP (Plastic Dual In-line Package) with 0.300-inch body width, RoHS-compliant matte tin lead finish, and standard through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip Select Input | Hardware-configurable LSB of 3-bit slave address; enables up to eight devices on one I²C bus |
| A1 | Chip Select Input | Hardware-configurable middle bit of slave address; tied high/low to assign unique I²C address |
| A2 | Chip Select Input | Hardware-configurable MSB of slave address; required for cascading beyond four devices |
| VSS | Ground Reference | Primary return path for all internal circuitry; must be connected to system GND plane |
| SDA | Serial Data I/O | Open-drain bidirectional data line; requires external pull-up resistor (10 kΩ typical for 100 kHz) |
| SCL | Serial Clock Input | Master-generated clock synchronizing all read/write transfers; Schmitt-triggered for noise rejection |
| Test | Factory Test Terminal | No connection required in application; may be left floating, tied high, or tied low |
| VCC | Power Supply | +4.5V to +5.5V supply input; bypass capacitor (0.1 µF ceramic) recommended near pin |
Key Features
| Feature | Design Value |
|---|---|
| 16-byte page write buffer | Reduces I²C transaction overhead by enabling burst writes up to 16 bytes per Stop condition |
| Schmitt-trigger SDA/SCL inputs | Eliminates false triggering from bus noise, supporting robust operation in electrically noisy industrial environments |
| Output slope control | Prevents ground bounce during signal transitions, avoiding unintended resets or communication errors |
| 100 kHz / 400 kHz clock compatibility | Supports both standard-mode and fast-mode I²C, allowing flexible timing selection based on system noise and speed needs |
| ESD protection >4000 V | Withstands human-body-model ESD events without latch-up or parametric shift-critical for handling during assembly |
| Factory programming option | Enables pre-loading of calibration data or security keys before PCB assembly, reducing post-manufacturing test steps |
Applications
| Power Supply Configuration Storage | Sensor Calibration Data Retention |
|---|---|
Use Scenario: Storing trim values, startup voltage thresholds, and fault recovery settings in AC/DC and DC/DC power modules. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed during power-on reset sequence via I²C. Use Value: Enables field-upgradable power parameters without firmware changes; retains settings across 10+ years of operation. | Use Scenario: Holding factory-calibrated offset/gain coefficients for analog temperature, pressure, or current sensors. IC Role / Device Role / Timing Role: Persistent data store queried once per sensor initialization to correct raw ADC readings. Use Value: Achieves ±0.1% measurement accuracy over full temperature range without recalibration in end equipment. |
| Industrial PLC I/O Module Identity | Embedded System Bootloader Parameters |
Use Scenario: Encoding module type, revision, slot position, and channel count in distributed I/O terminals. IC Role / Device Role / Timing Role: Identification EEPROM read early in boot to configure FPGA or ASIC I/O mapping. Use Value: Allows single hardware design to support multiple I/O variants via software-defined configuration. | Use Scenario: Storing secure boot keys, firmware version rollback limits, and watchdog timeout defaults in medical or safety-critical devices. IC Role / Device Role / Timing Role: Trusted configuration store accessed by bootloader before executing application code. Use Value: Supports FIPS-aligned secure boot while maintaining <5 µA standby draw during deep-sleep states. |
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, 1.7–5.5 V supply, 8-lead SOIC package, 1 MHz max. clock | Wider voltage range enables direct use with 3.3 V or 1.8 V hosts; SOIC-8 footprint differs from PDIP-8 | Select when migrating to surface-mount assembly or supporting mixed-voltage systems. |
| BR24G01FJ-WE2 | 1 Kbit I²C EEPROM, 1.6–5.5 V, 8-lead TSSOP, built-in write protect, 10⁶ endurance | Includes hardware write-protect pin (WP); TSSOP-8 has 3.0 mm width vs. PDIP-8's 9.0 mm | Choose when board-level write protection is required or PCB space constraints favor TSSOP. |
Compared with AT24C01D-SSHM-T and BR24G01FJ-WE2, the 24C01C-I/P offers proven 5V-only operation in through-hole PDIP-8, simplifying legacy 5V designs and eliminating level-shifters-but lacks write-protect and wide-VCC flexibility found in the alternatives.
Availability
24C01C-I/P is available at Aetrix Electronics and suitable for industrial control systems, sensor calibration modules, and power supply configuration storage requiring stable component supply across extended product lifecycles.
Supply support for 24C01C-I/P 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 memory products, with global manufacturing and quality certifications including ISO 9001 and AEC-Q200.
The 24C01C belongs to Microchip's legacy I²C EEPROM family designed for cost-sensitive, high-reliability industrial and automotive applications where 5V compatibility, long data retention, and cascading capability are essential.
FAQ
What is the maximum I²C clock frequency supported by the 24C01C-I/P?
The 24C01C-I/P supports I²C clock frequencies up to 400 kHz in fast mode, with guaranteed timing compliance (THIGH ≥ 600 ns, TLOW ≥ 1300 ns) across its industrial temperature range. At 100 kHz standard mode, it meets relaxed timing margins (THIGH ≥ 4000 ns, TLOW ≥ 4700 ns), making it interoperable with legacy microcontrollers lacking fast-mode support. The 24C01C-I/P does not support speeds above 400 kHz.
Does the 24C01C-I/P include hardware write protection?
No, the 24C01C-I/P does not feature a dedicated write-protect (WP) pin or internal hardware lock. Write protection must be implemented externally-either via I²C bus arbitration (e.g., disabling master access) or by connecting the WP function to an external GPIO-controlled switch. This differs from newer EEPROMs like BR24G01FJ-WE2, which integrate a dedicated WP pin.
How many 24C01C-I/P devices can be connected on a single I²C bus?
Up to eight 24C01C-I/P devices can be cascaded on one I²C bus using unique combinations of A0, A1, and A2 pins, yielding 3-bit chip select addressing (1010 A2 A1 A0 R/W). Each device must have a distinct hard-wired address; floating address pins are not permitted. For SOT-23 variants (not applicable to 24C01C-I/P), only four devices are supported due to missing A2 pin.
What is the page write capacity of the 24C01C-I/P?
The 24C01C-I/P features a 16-byte page write buffer, allowing up to 16 sequential bytes to be written in a single I²C transaction. Page boundaries align to 16-byte intervals (addresses 0x00–0x0F, 0x10–0x1F, etc.), and crossing a boundary causes wraparound within the same page-not automatic advancement to the next page. This requires firmware to split writes at page boundaries.
Is the 24C01C-I/P RoHS compliant and lead-free?
Yes, the 24C01C-I/P is Pb-free and RoHS compliant, with matte tin (Sn) plating on its leads per JEDEC standard. The "I/P" suffix explicitly denotes industrial-grade temperature rating (−40°C to +85°C) and PDIP packaging. Full compliance documentation, including substance declarations and test reports, is available through Microchip's official website and Aetrix Electronics' material disclosure portal.
24C01C-I/P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
24C01C-I/P FAQ
1.How can I place an order for 24C01C-I/P through Aetrix?
Please submit a Request for Quotation (RFQ) for 24C01C-I/P 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/P reliable?
The price and inventory of 24C01C-I/P 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/P is usually 5 days.
3.What payment methods are accepted for 24C01C-I/P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24C01C-I/P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24C01C-I/P?
24C01C-I/P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24C01C-I/P 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/P?
For technical support, including 24C01C-I/P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24C01C-I/P requirements.
6.How does Aetrix verify that 24C01C-I/P is sourced from the original manufacturer or authorized distributors?
All 24C01C-I/P 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/P meets industry standards.
7.What is the process for return or replacement of 24C01C-I/P?
All 24C01C-I/P units undergo pre-shipment inspection (PSI). If there is an issue with 24C01C-I/P, 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/P part is unused and in its original packaging.
Return procedure for 24C01C-I/P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24C01C-I/P Tags
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