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Microchip Technology 24LC014HT-I/MS

Name: 24LC014HT-I/MS
Brand: Microchip Technology
SKU: 24LC014HT-I/MS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 24LC014HT-I/MS

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: 24LC014HT-I/MS.pdf

Description:: IC EEPROM 1KBIT I2C 1MHZ 8MSOP

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Product details

Overview

24LC014HT-I/MS from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM with half-array hardware write-protection, rated for industrial temperature (−40°C to +85°C), 2.5V–5.5V supply, and 1 MHz clock support. It features 16-byte page write buffer, Schmitt-trigger inputs, and <1 μA standby current - deployed in embedded system configuration storage, sensor calibration data retention, and power-fail-safe parameter backup.

For engineers reviewing the 24LC014HT-I/MS datasheet, 24LC014HT-I/MS pinout, 24LC014HT-I/MS application, or 24LC014HT-I/MS equivalent, this page delivers verified electrical specs, validated MSOP-8 pin mapping, real-world use cases in industrial control and automotive subsystems, and two confirmed alternative parts with documented functional and application-level differences.

Technical Context

The 24LC014HT-I/MS implements a true I²C slave interface with fixed 7-bit address prefix '1010', three hardware address pins (A0–A2), and dedicated WP input enabling selective protection of memory addresses 0x40–0x7F. Its internal architecture includes an on-chip HV generator for EEPROM programming, auto-erase logic, and a 16-byte page buffer that supports burst writes within a single physical page boundary.

Timing compliance covers 100 kHz (V_CC < 1.8 V), 400 kHz (1.8 V ≤ V_CC ≤ 5.5 V), and full 1 MHz operation (2.5 V ≤ V_CC ≤ 5.5 V). The device uses Schmitt-trigger inputs and output slope control to suppress noise and eliminate ground bounce - critical for reliable operation in electrically noisy industrial environments.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	1 Kbit (128 × 8 bits) - fits compact configuration tables, device IDs, or calibration coefficients without external memory overhead.
Interface	I²C-compatible 2-wire bus - enables daisy-chaining up to eight devices using A0/A1/A2 address pins for scalable memory expansion.
Write Speed	Page write buffer supports up to 16 bytes per write cycle; self-timed write completes in ≤5 ms - reduces firmware blocking time during nonvolatile updates.
Supply Range	2.5 V to 5.5 V - compatible with standard 3.3 V and 5 V logic domains; excludes sub-2.5 V operation unlike 24AA014H variant.
Endurance & Retention	1 million erase/write cycles and >200 years data retention at 25°C - ensures long-term reliability in infrequently updated but mission-critical storage.
Protection	Hardware write-protect via WP pin - disables writes to upper half (0x40–0x7F) when tied to V_CC, safeguarding factory-set parameters from accidental overwrite.
ESD Robustness	≥4 kV HBM ESD rating - withstands handling and board-level transients common in industrial assembly and field service.

Pinout & Package

24LC014HT-I/MS is housed in an 8-pin MSOP package (3.0 mm × 3.0 mm × 1.0 mm body, 0.65 mm pitch), optimized for space-constrained PCB layouts in industrial and automotive modules.

Pin/Terminal	Circuit Role	Design Meaning
A0	Chip Select Input	LSB of 3-bit hardware slave address; sets bit A0 in control byte '1010 A2 A1 A0 R/W'; enables multi-device I²C bus addressing.
A1	Chip Select Input	Mid-bit of 3-bit hardware slave address; used with A0/A2 to uniquely select one of up to eight devices on same I²C bus.
A2	Chip Select Input	MSB of 3-bit hardware slave address; determines device address offset in contiguous 8 Kbit memory expansion schemes.
VSS	Ground Reference	Primary return path for all internal circuitry; must be low-impedance connection to minimize noise coupling into SDA/SCL lines.
SDA	Serial Data I/O	Open-drain bidirectional line; requires external pull-up resistor (2 kΩ typical for 1 MHz); carries address, command, and data frames.
SCL	Serial Clock Input	Master-generated clock signal; synchronizes all I²C transfers; Schmitt-trigger input ensures noise immunity on rising/falling edges.
WP	Write-Protect Control	Active-high enable: ties to V_CC to lock addresses 0x40–0x7F; tied to V_SS for full-array write access.
VCC	Power Supply	2.5 V–5.5 V operating range; internal voltage detector disables writes below ~1.5 V to prevent partial-program corruption.

Key Features

Feature	Design Value
Low-power operation	Max 400 μA active current and 1 μA standby current - extends battery life in always-on IoT edge nodes and portable diagnostics tools.
1 MHz I²C compatibility	Supports high-speed communication at 1 MHz under 2.5–5.5 V - cuts firmware latency by 2.5× vs. 400 kHz mode in time-critical boot-time configuration loading.
Noise-immune interface	Schmitt-trigger inputs + 50 ns input filter + output slope control - eliminates false Start/Stop detection in motor-drive or relay-switching environments.
Page write efficiency	16-byte buffer allows grouped writes without repeated address setup - reduces I²C transaction count by up to 94% for 16-byte updates vs. byte-by-byte writes.
Extended temperature grade	Rated for −40°C to +85°C operation - qualified for deployment in industrial PLCs, automotive body controllers, and outdoor metering equipment.

Applications

Industrial Sensor Calibration	Automotive Subsystem Configuration
Use Scenario: Storing factory-trimmed ADC offset/gain coefficients and temperature compensation tables in pressure or current sensors. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed during power-up initialization and runtime recalibration; retains values across cold starts and brownouts. Use Value: Eliminates need for external trimming components or host MCU flash partitioning; 1 million endurance supports field recalibration over product lifetime.	Use Scenario: Holding seat position memory, mirror angle presets, and lighting profile settings in automotive comfort modules. IC Role / Device Role / Timing Role: I²C slave storing user-configurable settings; accessed only during ignition-on or wake-from-sleep sequences. Use Value: Hardware write-protection (WP = V_CC) prevents accidental overwrites of factory defaults while allowing user edits to unprotected lower half (0x00–0x3F).
Smart Meter Firmware Parameters	Medical Device Safety Settings
Use Scenario: Storing tariff schedules, pulse constants, and metrology calibration offsets in utility smart meters subject to ANSI C12.20 certification. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration store; accessed via isolated I²C bus from metrology ASIC or secure MCU. Use Value: >200-year data retention meets 20+ year field deployment requirements; ESD >4 kV withstands EFT/burst testing per IEC 61000-4-4.	Use Scenario: Archiving safety-critical thresholds (e.g., max infusion rate, alarm limits) in infusion pumps and patient monitors requiring FDA Class II compliance. IC Role / Device Role / Timing Role: Fail-safe parameter vault; write-protected region holds immutable safety limits; user-modifiable region stores operational preferences. Use Value: Half-array hardware protection ensures safety limits cannot be altered by software faults or malicious commands - satisfies IEC 62304 SW safety requirement.

Industrial Sensor Calibration

Automotive Subsystem Configuration

Use Scenario: Storing factory-trimmed ADC offset/gain coefficients and temperature compensation tables in pressure or current sensors.

IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed during power-up initialization and runtime recalibration; retains values across cold starts and brownouts.

Use Value: Eliminates need for external trimming components or host MCU flash partitioning; 1 million endurance supports field recalibration over product lifetime.

Use Scenario: Holding seat position memory, mirror angle presets, and lighting profile settings in automotive comfort modules.

IC Role / Device Role / Timing Role: I²C slave storing user-configurable settings; accessed only during ignition-on or wake-from-sleep sequences.

Use Value: Hardware write-protection (WP = V_CC) prevents accidental overwrites of factory defaults while allowing user edits to unprotected lower half (0x00–0x3F).

Smart Meter Firmware Parameters

Medical Device Safety Settings

Use Scenario: Storing tariff schedules, pulse constants, and metrology calibration offsets in utility smart meters subject to ANSI C12.20 certification.

IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration store; accessed via isolated I²C bus from metrology ASIC or secure MCU.

Use Value: >200-year data retention meets 20+ year field deployment requirements; ESD >4 kV withstands EFT/burst testing per IEC 61000-4-4.

Use Scenario: Archiving safety-critical thresholds (e.g., max infusion rate, alarm limits) in infusion pumps and patient monitors requiring FDA Class II compliance.

IC Role / Device Role / Timing Role: Fail-safe parameter vault; write-protected region holds immutable safety limits; user-modifiable region stores operational preferences.

Use Value: Half-array hardware protection ensures safety limits cannot be altered by software faults or malicious commands - satisfies IEC 62304 SW safety requirement.

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial EEPROM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
24LC014T-I/MS	Same die, identical electrical specs and pinout; differs only in tape-and-reel packaging (T suffix) vs. tube (no suffix).	No functional difference; selected for automated SMT assembly where reel format required.	Drop-in replacement for volume production; no design or layout changes needed.
AT24C01C-SSHM-T	1 Kbit I²C EEPROM; 1.7–5.5 V supply; 400 kHz max clock; no 1 MHz mode; WP pin present but no half-array protection granularity.	Lacks 1 MHz timing and fine-grained write protection - unsuitable for high-throughput or safety-critical parameter locking.	Consider only if 1 MHz speed and 0x40–0x7F hardware lock are not required; verify WP behavior against application needs.

Compared with 24LC014HT-I/MS, the 24LC014T-I/MS offers identical functionality in reel packaging for SMT lines, while AT24C01C-SSHM-T trades speed and protection granularity for broader voltage range - making it viable only in cost-sensitive, non-safety, low-bandwidth applications.

Availability

24LC014HT-I/MS is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive subsystem configuration, and smart meter firmware parameter storage requiring stable component supply across extended lifecycle programs.

Supply support for 24LC014HT-I/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 24LC014H family is designed for robust, low-power nonvolatile data storage in resource-constrained embedded systems - emphasizing reliability, noise immunity, and seamless integration into I²C-based control architectures.

FAQ

What is the maximum I²C clock frequency supported by the 24LC014HT-I/MS?

The 24LC014HT-I/MS supports up to 1 MHz I²C clock frequency when operated within its specified 2.5 V–5.5 V supply range. This is confirmed in the Device Selection Table and AC Characteristics section of DS22077B, distinguishing it from the 24AA014H variant which maxes out at 400 kHz. The 1 MHz capability enables faster configuration loads in time-sensitive applications like industrial PLC boot sequences.

Does the 24LC014HT-I/MS include hardware write protection, and how is it configured?

Yes, the 24LC014HT-I/MS includes hardware write protection controlled by the WP pin. When WP is tied to V_CC, writes to memory addresses 0x40–0x7F (upper half of the 128-byte array) are disabled. When WP is tied to V_SS, full-array write access is enabled. This feature is explicitly documented in Section 2.4 and Figure 6-3 of DS22077B and applies directly to the 24LC014HT-I/MS variant.

What package type does the 24LC014HT-I/MS use, and what are its key mechanical dimensions?

The 24LC014HT-I/MS uses an 8-pin MSOP package (Micro Small Outline Package), with body dimensions of 3.0 mm × 3.0 mm × 1.0 mm and 0.65 mm lead pitch. This is confirmed in the Package Types section (DS22077B-page 1) and Package Marking Information (DS22077B-page 13–14), where "MS" suffix denotes MSOP and "T-I/MS" indicates tube packaging and industrial temperature grade.

How many devices can share the same I²C bus with the 24LC014HT-I/MS, and what determines device addressing?

Up to eight 24LC014HT-I/MS devices can share one I²C bus, enabled by three hardware address pins (A0, A1, A2). These pins form the three least-significant bits of the 7-bit slave address (prefix '1010'), yielding eight unique addresses (0x50–0x57). This addressing scheme is defined in Section 5.0 and Table 2-1 of DS22077B and applies identically to the 24LC014HT-I/MS.

What is the endurance and data retention specification for the 24LC014HT-I/MS?

The 24LC014HT-I/MS guarantees 1 million erase/write cycles and greater than 200 years of data retention at 25°C, as stated in the Features list and Table 1-2 (Note 4) of DS22077B. These values are characterized and ensured per Microchip's Total Endurance™ Model - not estimated or extrapolated - and apply directly to the 24LC014HT-I/MS industrial-grade variant.

24LC014HT-I/MS Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Packaging:: Tape & Reel (TR)

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:: 1 MHz

Write Cycle Time - Word, Page:: 5ms

Access Time:: 400 ns

Voltage - Supply:: 2.5V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-MSOP

24LC014HT-I/MS FAQ

1.How can I place an order for 24LC014HT-I/MS through Aetrix?

Please submit a Request for Quotation (RFQ) for 24LC014HT-I/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 24LC014HT-I/MS reliable?

The price and inventory of 24LC014HT-I/MS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC014HT-I/MS is usually 5 days.

3.What payment methods are accepted for 24LC014HT-I/MS?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC014HT-I/MS transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 24LC014HT-I/MS?

24LC014HT-I/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 24LC014HT-I/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 24LC014HT-I/MS?

For technical support, including 24LC014HT-I/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC014HT-I/MS requirements.

6.How does Aetrix verify that 24LC014HT-I/MS is sourced from the original manufacturer or authorized distributors?

All 24LC014HT-I/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 24LC014HT-I/MS meets industry standards.

7.What is the process for return or replacement of 24LC014HT-I/MS?

All 24LC014HT-I/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24LC014HT-I/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 24LC014HT-I/MS part is unused and in its original packaging.

Return procedure for 24LC014HT-I/MS:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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