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Microchip Technology 24LC014-E/MS
- Part No.:
- 24LC014-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24LC014-E/MS.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,414
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Product details
Overview
24LC014-E/MS from Microchip Technology Inc. is a 1 Kbit I²C-compatible serial EEPROM organized as 128 × 8-bit memory, operating from 2.5V to 5.5V with automotive-grade temperature range (–40°C to +125°C), 400 kHz max clock, and hardware write protection via WP pin. It supports page writes up to 16 bytes and delivers 1 µA standby current at 5.5V, used for nonvolatile parameter storage in automotive control modules.
For engineers reviewing the 24LC014-E/MS datasheet, 24LC014-E/MS pinout, 24LC014-E/MS application, or 24LC014-E/MS equivalent, key selection factors include its automotive temperature rating, MSOP-8 package footprint, I²C bus compatibility with 100/400 kHz modes, and hardware write-protection capability - all critical for safety-critical and long-life embedded systems.
Technical Context
The 24LC014-E/MS implements a standard two-wire I²C interface with slave addressing using A0–A2 pins, supporting up to eight devices on one bus. Its internal architecture includes an address pointer, page buffer, HV generator for EEPROM programming, and Schmitt-trigger inputs on SDA/SCL for noise immunity.
It operates in byte-write and page-write modes with self-timed internal write cycles (≤5 ms), automatic erase-before-write, and acknowledge polling support. The WP pin enables hardware-level array protection, while the device maintains data retention >200 years and endurance of 1 million erase/write cycles at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Kbit (128 × 8-bit) - fixed single-block organization, no sectoring or block erase required. |
| VCC range | 2.5V to 5.5V - compatible with 3.3V and 5V logic systems; not rated below 2.5V. |
| Max clock frequency | 400 kHz - supports high-speed I²C mode; drops to 100 kHz if VCC < 2.5V (not applicable here). |
| Write cycle time | ≤5 ms - defines minimum interval between write commands; independent of WP state. |
| Endurance | 1,000,000 erase/write cycles - validated at 25°C, 5.5V; ensures long-term reliability in firmware update or calibration logging. |
| Data retention | >200 years - guarantees nonvolatile storage integrity over full automotive service life. |
| ESD protection | >4,000 V HBM - meets robustness requirements for automotive module assembly and field operation. |
Pinout & Package
The 24LC014-E/MS is supplied in an 8-lead MSOP package (3.0 mm × 3.0 mm × 1.0 mm height), RoHS-compliant and Pb-free, with exposed pad option (not connected by default). Pin 1 is marked by laser; pin numbering follows standard MSOP convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip address input | LSB of 3-bit slave address; hardwired to VSS or VCC to configure I²C device address (0x50–0x57). |
| A1 | Chip address input | Middle bit of slave address; determines unique bus position among up to eight 24LC014-E/MS devices. |
| A2 | Chip address input | MSB of slave address; enables contiguous 8 Kbit expansion when multiple devices share same I²C bus. |
| VSS | Ground reference | Primary return path for all internal circuitry; must be low-impedance connection to system ground plane. |
| SDA | Serial data I/O | Open-drain bidirectional line requiring external pull-up (2 kΩ for 400 kHz); carries address, data, and ACK/NACK. |
| SCL | Serial clock input | Master-generated clock signal; synchronizes all data transfers; Schmitt-trigger input improves noise margin. |
| WP | Write-protect control | Active-high enable: tied to VCC disables all writes; tied to VSS enables full read/write access. |
| VCC | Power supply | 2.5V–5.5V input; powers EEPROM core, interface logic, and charge pump; decoupling capacitor required. |
Key Features
| Feature | Design Value |
|---|---|
| I²C bus compatibility | Fully compliant with Philips I²C specification, supporting standard (100 kHz) and fast-mode (400 kHz) timing. |
| Page write buffer | 16-byte internal buffer enables burst writes without repeated address setup, reducing bus overhead by ~85% vs. byte writes. |
| Hardware write protection | Dedicated WP pin provides immediate, glitch-immune lockout of entire memory array - no software dependency. |
| Automotive temperature grade | Rated for –40°C to +125°C ambient operation, qualified per AEC-Q100 stress test requirements. |
| Low-power operation | 1 µA typical standby current at 5.5V enables always-on storage in battery-backed systems with multi-year runtime. |
Applications
| Automotive Body Control Module | Industrial Sensor Calibration Storage |
|---|---|
|
Use Scenario: Storing door lock configuration, mirror position presets, and lighting profiles across vehicle power cycles. IC Role / Device Role / Timing Role: Nonvolatile parameter storage IC interfacing directly with MCU via I²C; accessed during boot and runtime. Use Value: Enables personalized user settings persistence without external backup power; WP pin prevents accidental overwrite during ECU firmware updates. |
Use Scenario: Retaining factory-calibrated offset/gain coefficients for analog sensor front-ends in industrial PLCs. IC Role / Device Role / Timing Role: Dedicated calibration data repository; written once during manufacturing, read at system startup. Use Value: Eliminates need for recalibration in field; >200-year data retention ensures accuracy over equipment lifetime. |
| Medical Device Configuration Memory | Smart Energy Meter Parameter Storage |
|
Use Scenario: Holding regulatory-compliant operational limits, user-access permissions, and audit log metadata in portable diagnostics gear. IC Role / Device Role / Timing Role: Secure configuration store with hardware write-lock; accessed only during authorized service mode. Use Value: WP pin enforces tamper-resistant configuration integrity; 1M endurance supports frequent firmware patch logging. |
Use Scenario: Saving tariff schedules, metering constants, and firmware version history in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: High-reliability EEPROM for regulatory-mandated data archiving; updated monthly via secure DLMS/COSEM. Use Value: Automotive-grade temperature range ensures stable operation inside outdoor meter enclosures exposed to solar heating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA014-E/MS | 1.7V–5.5V VCC range; supports 100 kHz down to 1.7V - broader low-voltage operation than 24LC014. | Valid for ultra-low-power systems (e.g., coin-cell IoT sensors) where 2.5V minimum is unacceptable. | Select when design requires operation below 2.5V; otherwise 24LC014-E/MS offers tighter automotive qualification. |
| AT24C01D-SSHM-T | Same 1 Kbit size, MSOP-8, and I²C interface; rated –40°C to +85°C (industrial), not automotive. | Lacks AEC-Q100 qualification and extended temperature validation; unsuitable for under-hood automotive use. | Acceptable for cost-sensitive industrial controls where extended temp is not required; verify WP functionality matches. |
Compared with 24AA014-E/MS and AT24C01D-SSHM-T, the 24LC014-E/MS uniquely combines automotive temperature rating, hardware write protection, and guaranteed 400 kHz I²C performance - making it the only choice for safety-critical, high-reliability automotive EEPROM applications.
Availability
24LC014-E/MS is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor calibration systems, medical device configuration storage, and smart energy meter parameter retention requiring stable component supply across extended product lifecycles.
Supply support for 24LC014-E/MS 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 microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24LC014-E/MS belongs to Microchip's serial EEPROM product line, engineered specifically for automotive and industrial applications demanding high reliability, extended temperature operation, and robust I²C interoperability.
FAQ
What is the operating voltage range for the 24LC014-E/MS?
The 24LC014-E/MS operates from 2.5V to 5.5V. Unlike the 24AA014 variant, it is not rated for operation below 2.5V - this is explicitly defined in the Device Selection Table and Electrical Characteristics section of DS21809G. Operation outside this range may result in undefined behavior or data corruption.
Does the 24LC014-E/MS support 400 kHz I²C communication across its full temperature range?
Yes, the 24LC014-E/MS supports 400 kHz clock frequency over its full automotive temperature range (–40°C to +125°C) when VCC is ≥2.5V. This is confirmed in the Device Selection Table and AC Characteristics (Table 1-2), where FCLK = 400 kHz is specified for both Industrial and Automotive grades.
How does the WP pin function on the 24LC014-E/MS?
The WP (Write-Protect) pin on the 24LC014-E/MS is an active-high input: when tied to VCC, it disables all write operations (byte and page) to the entire memory array while permitting unrestricted reads. When tied to VSS, full read/write access is enabled. This hardware-level protection operates independently of I²C commands.
What package type does the 24LC014-E/MS use, and what are its key mechanical dimensions?
The 24LC014-E/MS uses an 8-lead MSOP package (3.0 mm × 3.0 mm × 1.0 mm height) with gull-wing leads and laser-marked pin 1 identification. Per Microchip Packaging Specification, lead pitch is 0.65 mm, body width is 3.0 mm, and thermal pad is optional and unconnected unless specified.
Is the 24LC014-E/MS qualified for automotive applications, and what does the 'E' suffix indicate?
Yes, the 'E' suffix in 24LC014-E/MS denotes the automotive temperature grade (–40°C to +125°C), and the device is designed and tested to meet AEC-Q100 requirements. This qualification is documented in the Device Selection Table and confirmed in the "Temp. Range" column as "I, E", with 'E' explicitly referencing the automotive grade.
24LC014-E/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- 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:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
24LC014-E/MS FAQ
1.How can I place an order for 24LC014-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC014-E/MS 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 24LC014-E/MS reliable?
The price and inventory of 24LC014-E/MS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC014-E/MS is usually 5 days.
3.What payment methods are accepted for 24LC014-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC014-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC014-E/MS?
24LC014-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC014-E/MS 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 24LC014-E/MS?
For technical support, including 24LC014-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC014-E/MS requirements.
6.How does Aetrix verify that 24LC014-E/MS is sourced from the original manufacturer or authorized distributors?
All 24LC014-E/MS 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 24LC014-E/MS meets industry standards.
7.What is the process for return or replacement of 24LC014-E/MS?
All 24LC014-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24LC014-E/MS, 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 24LC014-E/MS part is unused and in its original packaging.
Return procedure for 24LC014-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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