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Microchip Technology 24C01-I
- Part No.:
- 24C01-I
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- -
- Datasheet:
-
24C01-I.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ
- Quantity:
- Payment:
- Shipping:
Inventory:25,744
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Product details
Overview
24C01-I from Microchip Technology is a 1 Kb (128 × 8) I²C-compatible serial EEPROM with 1.7 V to 5.5 V supply voltage, 400 kHz maximum clock frequency, and write cycle time of 5 ms typical. It operates in industrial temperature range (−40°C to +85°C) and is used for parameter storage in embedded controllers and power management systems.
For engineers reviewing the 24C01-I datasheet, 24C01-I pinout, 24C01-I application, or 24C01-I equivalent, key selection factors include I²C address configuration (A0–A2 pins), endurance (1 million erase/write cycles), data retention (200 years), and SOIC-8 package compatibility with legacy board layouts.
Technical Context
The 24C01-I implements a standard two-wire I²C interface with open-drain SDA/SCL lines, supports standard-mode (100 kHz) and fast-mode (400 kHz) signaling, and uses internal address auto-increment during sequential reads. It includes a hardware write-protect (WP) pin for block-level memory protection.
Memory organization consists of a single 128-byte page with byte-write and page-write capability (up to 16 bytes per page write), and built-in power-on reset logic ensures reliable initialization after supply ramp-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Kb (128 × 8 bits); sufficient for calibration data, device IDs, or small configuration tables in space-constrained designs |
| Interface | I²C (Two-Wire Serial); enables low-pin-count communication with microcontrollers without dedicated SPI peripherals |
| Supply Voltage | 1.7 V to 5.5 V; supports direct interfacing with 1.8 V, 3.3 V, and 5 V logic domains without level shifters |
| Write Endurance | 1,000,000 cycles; allows frequent updates in logging or adaptive tuning applications |
| Data Retention | 200 years at +25°C; ensures long-term integrity of stored firmware parameters or calibration coefficients |
| Operating Temp | −40°C to +85°C; qualified for industrial control, metering, and automotive body electronics environments |
Pinout & Package
24C01-I is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package with 1.27 mm pitch, compatible with standard surface-mount assembly processes and reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Address Input | Configure one of eight possible I²C slave addresses (0x50–0x57); enables multiple devices on same bus |
| SDA | Serial Data | Open-drain bidirectional I²C data line; requires external pull-up resistor |
| SCL | Serial Clock | Input-only I²C clock line; controls timing of read/write operations |
| WP | Write Protect | Active-high pin that locks entire memory array when asserted; provides hardware-level write security |
| VSS | Ground | Reference return path for all internal circuitry and I/O signals |
| VCC | Power Supply | Primary DC supply input; decoupling capacitor required near pin for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Operates across 1.7–5.5 V range, eliminating need for separate logic-level translation in mixed-voltage systems |
| Page-write capability | Allows up to 16 bytes to be written in one I²C transaction, reducing bus overhead and improving update efficiency |
| Hardware write protection | WP pin enables system-level lockout of memory writes without software intervention or firmware changes |
| Low-power standby | Typical standby current of 1 µA at 5.5 V enables use in battery-backed or energy-harvesting applications |
Applications
| Industrial Sensor Calibration | Smart Meter Configuration Storage |
|---|---|
Use Scenario: Storing factory-calibrated sensor offset/gain coefficients and temperature compensation tables. IC Role / Device Role / Timing Role: Nonvolatile parameter repository accessed during power-up or recalibration routines. Use Value: Ensures measurement accuracy over product lifetime without requiring external programming infrastructure. | Use Scenario: Holding tariff schedules, billing history, and utility communication settings in electricity/water meters. IC Role / Device Role / Timing Role: Secure, tamper-resistant memory for regulatory-compliant data retention. Use Value: Meets IEC 62056 and ANSI C12.19 requirements for 200-year data integrity under field conditions. |
| Embedded Controller Boot Settings | Power Supply Sequencing Profiles |
Use Scenario: Saving user-configurable boot modes, watchdog timeouts, and default I/O states in PLCs and HMI modules. IC Role / Device Role / Timing Role: Persistent configuration store loaded before main application firmware execution. Use Value: Enables field-upgradable behavior without firmware reflashing or hardware modification. | Use Scenario: Storing multi-rail power sequencing delays and voltage thresholds for FPGA or ASIC power management units. IC Role / Device Role / Timing Role: Timing-critical configuration memory referenced by PMIC state machines during cold start. Use Value: Guarantees repeatable, deterministic power-up behavior across manufacturing batches and operating temperatures. |
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 Kb capacity and I²C interface, but rated for −40°C to +125°C and features enhanced ESD protection (4 kV HBM) | Preferred for under-hood automotive modules where extended temperature and robustness are mandatory | Select AT24C01D-SSHM-T when operating beyond +85°C or in high-noise environments requiring higher ESD immunity |
| BR24G01FJ-WE2 | 1 Kb I²C EEPROM with 1.6 V to 5.5 V supply, but uses different A0–A2 addressing scheme (active-low logic) and lacks WP pin | Suitable for cost-sensitive consumer products where full write protection is not required | Choose BR24G01FJ-WE2 only if board layout accommodates inverted address logic and hardware write lock is unnecessary |
Compared with AT24C01D-SSHM-T and BR24G01FJ-WE2, the 24C01-I offers verified industrial-temperature operation with standard I²C addressing and integrated WP functionality-making it optimal for general-purpose embedded systems where reliability, compatibility, and ease of integration are prioritized over extreme environmental ratings or lowest unit cost.
Availability
24C01-I is available at Aetrix Electronics and suitable for industrial sensor calibration, smart meter configuration storage, and embedded controller boot settings requiring stable component supply and long-term obsolescence planning.
Supply support for 24C01-I 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 is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and nonvolatile memory solutions for industrial, automotive, and communications markets.
The 24Cxx family-including the 24C01-I-is designed specifically for low-power, I²C-based configuration and parameter storage in resource-constrained embedded systems.
FAQ
What is the maximum I²C clock frequency supported by the 24C01-I?
The 24C01-I supports a maximum I²C clock frequency of 400 kHz in fast-mode operation. This allows efficient data transfers while maintaining compatibility with standard I²C controllers. The device also fully supports standard-mode (100 kHz) for backward compatibility. Timing parameters including tLOW, tHIGH, and setup/hold times are specified in the official Microchip datasheet MCHPS03756 for design validation.
Does the 24C01-I require an external pull-up resistor on the SDA line?
Yes, the 24C01-I requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and speed. The 24C01-I datasheet specifies maximum rise time limits to ensure reliable communication at 400 kHz, and proper resistor selection is critical for meeting those specifications.
How many unique I²C addresses can be assigned to the 24C01-I?
The 24C01-I supports eight unique I²C slave addresses (0x50 through 0x57) via hardware configuration of the A0, A1, and A2 pins. Each pin can be tied to VCC or VSS to select binary address bits. This enables up to eight 24C01-I devices on a single I²C bus without address conflict, supporting modular system designs with distributed memory nodes.
What is the write endurance rating of the 24C01-I?
The 24C01-I is rated for 1,000,000 erase/write cycles per memory location. This endurance level supports frequent updates in applications such as event logging, adaptive calibration, or runtime configuration changes. Endurance testing follows JEDEC standards, and wear leveling is not implemented-the designer must manage write distribution if exceeding this limit is anticipated in the application lifetime.
Is the 24C01-I compatible with 1.8 V microcontroller I/O interfaces?
Yes, the 24C01-I operates down to 1.7 V supply voltage and meets I²C logic-level thresholds at 1.8 V systems. Its VOL and VOH specifications ensure interoperability with 1.8 V GPIOs when powered from the same rail. Pull-up resistors should be connected to the same 1.8 V supply, and bus capacitance must remain within I²C specification limits to maintain signal integrity at target clock speeds.
24C01-I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- 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:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 1.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
24C01-I FAQ
1.How can I place an order for 24C01-I through Aetrix?
Please submit a Request for Quotation (RFQ) for 24C01-I 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 24C01-I reliable?
The price and inventory of 24C01-I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24C01-I is usually 5 days.
3.What payment methods are accepted for 24C01-I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24C01-I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24C01-I?
24C01-I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24C01-I 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 24C01-I?
For technical support, including 24C01-I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24C01-I requirements.
6.How does Aetrix verify that 24C01-I is sourced from the original manufacturer or authorized distributors?
All 24C01-I 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 24C01-I meets industry standards.
7.What is the process for return or replacement of 24C01-I?
All 24C01-I units undergo pre-shipment inspection (PSI). If there is an issue with 24C01-I, 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 24C01-I part is unused and in its original packaging.
Return procedure for 24C01-I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24C01-I Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
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