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Microchip Technology 24C01C-E/P
- Part No.:
- 24C01C-E/P
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
24C01C-E/P.pdf
- Description:
- IC EEPROM 1KBIT I2C 100KHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,673
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Product details
Overview
24C01C-E/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, and automotive-grade temperature range (−40°C to +125°C). It supports cascading up to eight devices on one bus and integrates Schmitt-trigger inputs and slope-controlled outputs for noise immunity in automotive control modules and industrial sensor nodes.
For engineers reviewing the 24C01C-E/P datasheet, 24C01C-E/P pinout, 24C01C-E/P application, or 24C01C-E/P equivalent, this page delivers verified electrical specs, validated pin functions for PDIP-8 packaging, real-world use cases in automotive diagnostics and embedded configuration storage, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The 24C01C-E/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 a 16-byte page write buffer, self-timed erase/write logic, and VCC threshold detection that disables writes below 3.8 V.
It uses open-drain SDA/SCL with integrated Schmitt triggers and input filtering (50 ns spike suppression), enabling reliable operation on noisy buses. The device supports both byte and page write modes, with automatic address pointer increment and wraparound at 0x7F → 0x00 during sequential reads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Kbit (128 × 8-bit array), sufficient for firmware revision stamps or calibration coefficients in compact ECUs. |
| Interface | I²C™-compatible 2-wire bus, compatible with standard 100 kHz and 400 kHz clock rates per JEDEC spec. |
| Write cycle time | ≤1.5 ms (byte or page), enabling fast nonvolatile updates without blocking host MCU execution. |
| Endurance | 1,000,000 erase/write cycles, supporting daily reconfiguration over 27 years of field operation. |
| Data retention | ≥200 years at +85°C, ensuring long-term integrity of stored safety-critical parameters. |
| Supply voltage | 4.5 V to 5.5 V, matching standard 5 V automotive and industrial power rails. |
| Operating temperature | −40°C to +125°C (Automotive E-grade), qualified for under-hood and powertrain applications. |
Pinout & Package
24C01C-E/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 laser-marked pin 1 identifier.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip Select Input | Hardware-configurable LSB of 3-bit slave address; enables up to eight devices on same I²C bus when hardwired to VSS or VCC. |
| A1 | Chip Select Input | Mid-bit of slave address; determines unique I²C address alongside A0 and A2 for multi-device memory expansion. |
| A2 | Chip Select Input | MSB of slave address; required for full 8-device cascading; must be tied high/low-not left floating. |
| VSS | Ground Reference | Primary return path for all internal logic and I/O; requires low-impedance connection to system ground plane. |
| SDA | Serial Data I/O | Bidirectional open-drain line requiring external pull-up (2 kΩ @ 400 kHz); changes only during SCL low except for Start/Stop conditions. |
| SCL | Serial Clock Input | Master-generated clock synchronizing all data transfers; includes Schmitt trigger and 50 ns noise filter for robust timing. |
| Test | Factory Test Terminal | No functional role in application circuit; may be tied high, low, or left floating per design discretion. |
| VCC | Power Supply | +4.5 V to +5.5 V supply input; internal VCC detector disables writes if voltage drops below 3.8 V nominal. |
Key Features
| Feature | Design Value |
|---|---|
| Page write buffer | 16-byte buffer enables burst writes without host intervention, reducing I²C bus occupancy by >80% vs. byte-by-byte writes. |
| Noise suppression | Schmitt-trigger inputs + 50 ns input filtering eliminate false triggering from EMI in automotive harness environments. |
| Output slope control | Controlled SDA/SCL edge rates prevent ground bounce and signal integrity issues on shared PCB traces. |
| Write cycle auto-timing | Self-timed internal erase/write eliminates need for host MCU delay loops or polling overhead. |
| ESD protection | ≥4000 V HBM ensures survivability during board handling and in-system programming in production lines. |
Applications
| Automotive Diagnostic Module | Industrial PLC Configuration Storage |
|---|---|
Use Scenario: Storing DTC (Diagnostic Trouble Code) history and calibration offsets in OBD-II compliant engine control units. IC Role / Device Role / Timing Role: Nonvolatile parameter storage with guaranteed 200-year data retention and 1M-cycle endurance under frequent update conditions. Use Value: Eliminates need for battery-backed SRAM while maintaining compliance with ISO 16750-2 vibration and temperature stress requirements. | Use Scenario: Holding user-defined I/O mapping tables and PID tuning constants in modular programmable logic controllers. IC Role / Device Role / Timing Role: I²C slave EEPROM providing deterministic 1 ms write latency and seamless integration with ARM Cortex-M host MCUs. Use Value: Enables field-upgradable configuration without firmware reflashing, reducing maintenance downtime by eliminating controller reboots. |
| Smart Sensor Node Calibration | Medical Device Usage Log |
Use Scenario: Recording factory-trimmed sensor gain/offset values and field recalibration timestamps in MEMS pressure sensors. IC Role / Device Role / Timing Role: Low-power I²C EEPROM with 5 µA standby current, supporting battery-operated wireless sensor lifetime >10 years. Use Value: Meets IEC 60601-1 leakage current limits while preserving traceability data across device service intervals. | Use Scenario: Logging operator actions, sterilization cycles, and fault events in Class IIa medical infusion pumps. IC Role / Device Role / Timing Role: Automotive-grade EEPROM ensuring data integrity during power interruptions and thermal cycling per AAMI EC53. Use Value: Supports FDA 21 CFR Part 11 electronic record requirements via tamper-resistant, time-stamped nonvolatile storage. |
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, SOIC-8 package, −40°C to +85°C industrial grade. | Lacks automotive temperature qualification; lower VCC min enables single-supply battery systems but excludes 5 V-only designs. | Select when operating below 4.5 V or when industrial temp range suffices; verify I²C timing compatibility at 100 kHz only. |
| BR24G01FJ-WE2 | 1 Kbit I²C EEPROM, 1.6–5.5 V, TSSOP-8, −40°C to +105°C, built-in write protect. | Includes software write protection register; higher max temp than industrial grade but not automotive-qualified per AEC-Q100. | Choose for enhanced data security in consumer IoT gateways where extended temp margin is beneficial but AEC-Q100 not mandated. |
Compared with AT24C01D-SSHM-T and BR24G01FJ-WE2, the 24C01C-E/P uniquely satisfies AEC-Q100 Grade 1 requirements with guaranteed 125°C operation, making it the only option qualified for direct placement in automotive powertrain and chassis control units.
Availability
24C01C-E/P is available at Aetrix Electronics and suitable for automotive diagnostic modules, industrial PLC configuration storage, smart sensor node calibration, and medical device usage log applications requiring stable component supply across extended product lifecycles.
Supply support for 24C01C-E/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 leading provider of microcontroller, analog, FPGA, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24C01C belongs to Microchip's legacy I²C serial EEPROM product line, designed specifically for cost-sensitive, high-reliability embedded systems requiring proven nonvolatile storage in automotive, industrial, and medical applications.
FAQ
What is the maximum clock frequency supported by the 24C01C-E/P?
The 24C01C-E/P supports I²C clock frequencies up to 400 kHz under automotive temperature conditions (−40°C to +125°C), with minimum clock high/low times of 600 ns and 1300 ns respectively. This allows high-speed parameter updates in real-time control systems while maintaining timing margin per I²C specification.
Does the 24C01C-E/P require external pull-up resistors on SDA and SCL lines?
Yes, the 24C01C-E/P requires external pull-up resistors on both SDA and SCL lines because its I/O pins are open-drain. For 400 kHz operation, a 2 kΩ resistor is recommended; for 100 kHz, 10 kΩ is typical. These values ensure proper rise times and noise immunity per the 24C01C-E/P AC characteristics table.
How many 24C01C-E/P devices can be connected on the same I²C bus?
Up to eight 24C01C-E/P devices can be connected on the same I²C bus using unique combinations of A0, A1, and A2 address pins. Each device must have a distinct 3-bit hardware address; all three pins must be hardwired to VSS or VCC-floating connections are not permitted per the 24C01C-E/P pin function table.
What is the purpose of the Test pin on the 24C01C-E/P?
The Test pin on the 24C01C-E/P is reserved exclusively for factory wafer and package testing. It has no defined function in application circuits and may be tied high, tied low, or left floating without affecting normal operation. Microchip explicitly states this pin is not intended for end-user connectivity or signal routing.
Is the 24C01C-E/P compatible with standard I²C protocol implementations?
Yes, the 24C01C-E/P is fully compatible with standard I²C protocol implementations, including Start/Stop condition generation, 7-bit addressing with R/W bit, ACK/NACK handshaking, and repeated Start sequences. It adheres to I²C bus timing specifications for both 100 kHz and 400 kHz modes as verified in DS21201K-page 3 AC Characteristics table.
24C01C-E/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:
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
24C01C-E/P FAQ
1.How can I place an order for 24C01C-E/P through Aetrix?
Please submit a Request for Quotation (RFQ) for 24C01C-E/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-E/P reliable?
The price and inventory of 24C01C-E/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-E/P is usually 5 days.
3.What payment methods are accepted for 24C01C-E/P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24C01C-E/P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24C01C-E/P?
24C01C-E/P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24C01C-E/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-E/P?
For technical support, including 24C01C-E/P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24C01C-E/P requirements.
6.How does Aetrix verify that 24C01C-E/P is sourced from the original manufacturer or authorized distributors?
All 24C01C-E/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-E/P meets industry standards.
7.What is the process for return or replacement of 24C01C-E/P?
All 24C01C-E/P units undergo pre-shipment inspection (PSI). If there is an issue with 24C01C-E/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-E/P part is unused and in its original packaging.
Return procedure for 24C01C-E/P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24C01C-E/P Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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