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Microchip Technology 24LC014H-I/MS

Name: 24LC014H-I/MS
Brand: Microchip Technology
SKU: 24LC014H-I/MS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 24LC014H-I/MS

Manufacturer:: Microchip Technology

Category:: Memory

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

Datasheet:: 24LC014H-I/MS.pdf

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

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Product details

Overview

24LC014H-I/MS from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM optimized for low-voltage industrial applications. It operates from 2.5V to 5.5V, supports up to 1 MHz clock frequency, features hardware write-protection for the upper half-array (40h–7Fh), and delivers ≤1 μA standby current at −40°C to +85°C. It is used in embedded systems for storing calibration data, configuration settings, and firmware parameters.

For engineers reviewing the 24LC014H-I/MS datasheet, 24LC014H-I/MS pinout, 24LC014H-I/MS application, or 24LC014H-I/MS equivalent, key selection criteria include VCC range compatibility (2.5V–5.5V), 1 MHz I²C timing support, MSOP-8 package footprint, half-array hardware write protection, and guaranteed 1 million erase/write cycles with >200-year data retention.

Technical Context

The 24LC014H-I/MS implements a standard two-wire I²C interface with Schmitt-trigger inputs and output slope control to suppress noise and eliminate ground bounce. Its internal address counter enables sequential, random, and current-address read modes, while the 16-byte page write buffer allows efficient burst programming without host-side timing constraints.

Hardware write protection is implemented via the WP pin: when tied to VCC, addresses 40h–7Fh are locked against writes; when tied to VSS, full array access is permitted. The device uses an internal high-voltage generator and auto-erase logic to complete self-timed byte or page writes within ≤5 ms, independent of bus clock rate.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	1 Kbit (128 × 8 bits), organized as single block - simplifies address management and eliminates bank switching logic.
VCC Operating Range	2.5V to 5.5V - compatible with 3.3V and 5V microcontroller I/O domains without level shifting.
Max I²C Clock Frequency	1 MHz - enables faster configuration loading versus 100 kHz/400 kHz EEPROMs, reducing boot time in time-critical systems.
Write Endurance	1 million erase/write cycles - supports frequent field updates such as logging or parameter tuning in industrial controllers.
Data Retention	Greater than 200 years at 25°C - ensures long-term reliability for unattended equipment like utility meters or remote sensors.
Standby Current	≤1 μA at −40°C to +85°C - critical for battery-powered devices where quiescent power directly impacts service life.
Page Write Buffer	16 bytes - allows single-burst writes across contiguous addresses, minimizing I²C transaction overhead and host CPU intervention.
Write Protection	Hardware-enabled for 40h–7Fh (64 bytes) via WP pin - prevents accidental overwrites of critical calibration or security keys during firmware updates.

Pinout & Package

24LC014H-I/MS is housed in an 8-pin MSOP (Mini Small Outline Package) with 0.65 mm lead pitch and 3.0 mm × 3.0 mm body size, suitable for space-constrained PCB layouts in industrial and automotive modules.

Pin/Terminal	Circuit Role	Design Meaning
A0	Chip Select Input	User-configurable slave address bit; sets bit A0 of 7-bit I²C address (1010A2A1A0) - enables up to eight devices on one bus.
A1	Chip Select Input	User-configurable slave address bit; sets bit A1 of 7-bit I²C address - allows unique addressing in multi-device configurations.
A2	Chip Select Input	User-configurable slave address bit; sets bit A2 of 7-bit I²C address - required for expanding memory capacity beyond 1 Kbit via daisy-chained devices.
VSS	Ground Reference	Primary return path for all internal circuitry; must be connected to system ground plane with low-impedance trace.
SDA	Serial Data I/O	Open-drain bidirectional bus line; requires external pull-up resistor (2 kΩ typical for 1 MHz operation) - carries address, command, and data.
SCL	Serial Clock Input	Master-generated clock signal synchronizing all I²C transfers; Schmitt-trigger input ensures noise immunity on shared buses.
WP	Write-Protect Control	Active-high enable for hardware lock of upper 64-byte memory block (40h–7Fh); tied to VCC to prevent unintended writes during power transitions.
VCC	Power Supply	Positive supply input (2.5V–5.5V); includes internal voltage detector that disables write logic below 1.5V to prevent corruption during brownout.

Key Features

Feature	Design Value
I²C Bus Compatibility	Fully compliant with Philips I²C specification, supporting standard (100 kHz), fast (400 kHz), and fast-plus (1 MHz) modes - interoperable with legacy and modern microcontrollers.
Noise Immunity	Schmitt-trigger inputs + 50 ns input filter spike suppression - maintains reliable communication in electrically noisy environments like motor drives or PLC backplanes.
Low-Power Operation	400 μA max active current and 1 μA max standby current - extends battery life in portable instrumentation and reduces thermal load in sealed enclosures.
Self-Timed Writes	Internal write cycle completes autonomously in ≤5 ms; no external timing control needed - simplifies firmware and eliminates host wait-state polling overhead.
Pb-Free & RoHS	Matte tin (Sn) lead finish per JEDEC standards - meets global environmental compliance requirements for industrial and automotive end equipment.
Extended Temperature	Rated for −40°C to +85°C (Industrial grade) - validated for operation in harsh environments including factory automation, HVAC controls, and outdoor infrastructure.

Applications

Industrial Sensor Calibration	Smart Meter Configuration Storage
Use Scenario: Storing temperature, pressure, or humidity sensor offset/gain coefficients during factory calibration and field recalibration. IC Role / Device Role / Timing Role: Nonvolatile configuration register providing persistent, byte-addressable storage accessible via I²C during power-up or maintenance mode. Use Value: Enables field-serviceable calibration without firmware reflash; hardware write-protection prevents accidental erasure of certified calibration values.	Use Scenario: Retaining tariff tables, billing history, meter ID, and communication settings in electricity/water/gas smart meters deployed for >10 years. IC Role / Device Role / Timing Role: High-reliability data logger with 1M endurance and >200-year retention - survives repeated daily writes and decades of shelf life. Use Value: Eliminates need for battery-backed SRAM; 2.5V–5.5V operation interfaces directly with metering SoCs and RTC circuits without voltage translation.
Embedded Controller Parameter Backup	Automotive Body Control Module Settings
Use Scenario: Saving user preferences (e.g., display brightness, alarm thresholds) and operational logs in programmable logic controllers (PLCs) and HMI panels. IC Role / Device Role / Timing Role: Low-power serial EEPROM interfacing with ARM Cortex-M or PIC microcontrollers over I²C at 400 kHz–1 MHz. Use Value: 16-byte page write capability accelerates bulk parameter saves; MSOP-8 footprint minimizes PCB area in compact DIN-rail mounted enclosures.	Use Scenario: Storing seat position memory, mirror adjustment presets, and lighting profiles in automotive body control units (BCUs). IC Role / Device Role / Timing Role: Industrial-grade EEPROM qualified for −40°C to +85°C operation - withstands under-hood thermal cycling and ESD events per ISO 10605. Use Value: Hardware write-protection isolates safety-critical configuration (e.g., airbag disable flags) from routine user-setting updates, enhancing functional safety.

Industrial Sensor Calibration

Smart Meter Configuration Storage

Use Scenario: Storing temperature, pressure, or humidity sensor offset/gain coefficients during factory calibration and field recalibration.

IC Role / Device Role / Timing Role: Nonvolatile configuration register providing persistent, byte-addressable storage accessible via I²C during power-up or maintenance mode.

Use Value: Enables field-serviceable calibration without firmware reflash; hardware write-protection prevents accidental erasure of certified calibration values.

Use Scenario: Retaining tariff tables, billing history, meter ID, and communication settings in electricity/water/gas smart meters deployed for >10 years.

IC Role / Device Role / Timing Role: High-reliability data logger with 1M endurance and >200-year retention - survives repeated daily writes and decades of shelf life.

Use Value: Eliminates need for battery-backed SRAM; 2.5V–5.5V operation interfaces directly with metering SoCs and RTC circuits without voltage translation.

Embedded Controller Parameter Backup

Automotive Body Control Module Settings

Use Scenario: Saving user preferences (e.g., display brightness, alarm thresholds) and operational logs in programmable logic controllers (PLCs) and HMI panels.

IC Role / Device Role / Timing Role: Low-power serial EEPROM interfacing with ARM Cortex-M or PIC microcontrollers over I²C at 400 kHz–1 MHz.

Use Value: 16-byte page write capability accelerates bulk parameter saves; MSOP-8 footprint minimizes PCB area in compact DIN-rail mounted enclosures.

Use Scenario: Storing seat position memory, mirror adjustment presets, and lighting profiles in automotive body control units (BCUs).

IC Role / Device Role / Timing Role: Industrial-grade EEPROM qualified for −40°C to +85°C operation - withstands under-hood thermal cycling and ESD events per ISO 10605.

Use Value: Hardware write-protection isolates safety-critical configuration (e.g., airbag disable flags) from routine user-setting updates, enhancing functional safety.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
24AA014H-I/MS	Wider VCC range (1.7V–5.5V); max 400 kHz I²C; same MSOP-8 package and pinout	Supports ultra-low-voltage systems (e.g., coin-cell powered IoT nodes) but lacks 1 MHz speed for high-throughput logging	Select when operating below 2.5V or requiring extended low-VCC functionality; verify timing margins at 1.7V–1.8V.
AT24C01D-MAHM-T	1 Kbit I²C EEPROM; 1.7V–5.5V VCC; 1 MHz max clock; TSSOP-8 package; no hardware write-protect pin	Software-controlled write protection only; requires firmware lock implementation instead of hardware-enforced half-array lock	Choose when board layout permits TSSOP-8 and application logic can manage write-enable state; not drop-in due to different pinout and missing WP function.

Compared with 24LC014H-I/MS, the 24AA014H-I/MS offers broader voltage flexibility at lower speed, while the AT24C01D-MAHM-T provides 1 MHz performance in TSSOP but removes hardware write protection-making 24LC014H-I/MS optimal for industrial designs needing both speed and physical write-locking of critical memory regions.

Availability

24LC014H-I/MS is available at Aetrix Electronics and suitable for industrial sensor calibration, smart meter configuration storage, and embedded controller parameter backup requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 24LC014H-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 belongs to Microchip's serial EEPROM product line, engineered for robust, low-power nonvolatile data storage in industrial, automotive, and consumer applications where reliability, small footprint, and I²C simplicity are essential.

FAQ

What is the maximum I²C clock frequency supported by the 24LC014H-I/MS?

The 24LC014H-I/MS supports up to 1 MHz I²C clock frequency when VCC is between 2.5V and 5.5V. This is confirmed in the Device Selection Table and AC Characteristics section of the DS22077B datasheet. At this speed, it achieves faster configuration reads and writes compared to standard 100 kHz EEPROMs, reducing system initialization time in time-sensitive applications.

Does the 24LC014H-I/MS have hardware write protection, and how is it implemented?

Yes, the 24LC014H-I/MS includes hardware write protection for the upper half of its memory array (addresses 40h–7Fh). This is controlled by the WP pin: when tied to VCC, writes to that 64-byte region are blocked; when tied to VSS, full array access is enabled. This feature is documented in Section 2.4 and Figure 6-2 of the DS22077B datasheet.

What package type is used for the 24LC014H-I/MS, and what are its key mechanical dimensions?

The 24LC014H-I/MS uses an 8-pin MSOP package (Mini Small Outline Package) with 0.65 mm lead pitch and a 3.0 mm × 3.0 mm body size. Pin 1 marking and package outline are defined in DS22077B-page 15. This compact footprint supports high-density PCB layouts in space-constrained industrial modules.

How many erase/write cycles does the 24LC014H-I/MS guarantee, and what is its data retention period?

The 24LC014H-I/MS guarantees 1 million erase/write cycles and greater than 200 years of data retention at 25°C, as specified in the Features list and Table 1-2 (Note 4) of DS22077B. These values are characterized-not tested per unit-but ensured through process and design validation across the industrial temperature range.

Can multiple 24LC014H-I/MS devices share the same I²C bus, and how is addressing managed?

Yes, up to eight 24LC014H-I/MS devices can share one I²C bus using the A0, A1, and A2 pins to configure unique 3-bit chip select codes. These pins form the three most significant bits of the 7-bit slave address (1010A2A1A0), allowing contiguous 8 Kbit expansion. This is detailed in Section 5.0 and Figure 5-1 of the DS22077B datasheet.

24LC014H-I/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:: 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

24LC014H-I/MS FAQ

1.How can I place an order for 24LC014H-I/MS through Aetrix?

Please submit a Request for Quotation (RFQ) for 24LC014H-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 24LC014H-I/MS reliable?

The price and inventory of 24LC014H-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 24LC014H-I/MS is usually 5 days.

3.What payment methods are accepted for 24LC014H-I/MS?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC014H-I/MS transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 24LC014H-I/MS?

24LC014H-I/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 24LC014H-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 24LC014H-I/MS?

For technical support, including 24LC014H-I/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC014H-I/MS requirements.

6.How does Aetrix verify that 24LC014H-I/MS is sourced from the original manufacturer or authorized distributors?

All 24LC014H-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 24LC014H-I/MS meets industry standards.

7.What is the process for return or replacement of 24LC014H-I/MS?

All 24LC014H-I/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24LC014H-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 24LC014H-I/MS part is unused and in its original packaging.

Return procedure for 24LC014H-I/MS:

1.Submit a request within 90 days.

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

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