Microchip Technology 24LC014H-I/P

Overview

24LC014H-I/P from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM with industrial temperature range (–40°C to +85°C), 2.5V–5.5V supply operation, and hardware write-protection for the upper half-array (addresses 40h–7Fh). It supports up to 1 MHz clock frequency, features Schmitt-trigger inputs and slope-controlled outputs, and is used for nonvolatile parameter storage in embedded control modules, sensor calibration registers, and power-management configuration memory.

For engineers reviewing the 24LC014H-I/P datasheet, 24LC014H-I/P pinout, 24LC014H-I/P application, or 24LC014H-I/P equivalent, this page delivers verified electrical specs, validated pin functions, confirmed package mapping (8-pin PDIP), real-world use cases, and two technically documented alternative parts - all extracted from Microchip's DS22077B preliminary datasheet.

Technical Context

The 24LC014H-I/P implements a standard I²C slave interface with fixed 4-bit control code (1010b), three user-configurable chip-select bits (A0–A2), and R/W bit-driven read/write mode selection. Its internal address pointer auto-increments during sequential reads and wraps at 07Fh → 000h.

Write operations include byte-write and page-write (up to 16 bytes per cycle), both initiating self-timed erase-and-write cycles with typical 5 ms duration. Hardware write protection is activated by tying WP high, locking addresses 40h–7Fh; no software lock or status register is present.

Key Specifications

Pinout & Package

24LC014H-I/P is supplied in an 8-pin Plastic Dual In-line Package (PDIP) with 0.3-inch body width. Pin 1 is A0 (chip select), pin 4 is VSS (ground), pin 5 is SDA (open-drain bidirectional data), pin 6 is SCL (input-only clock), pin 7 is WP (active-high write-protect), and pin 8 is VCC (power).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 24LC014H-I/P, the 24LC014T-I/OT sacrifices address flexibility and speed for ultra-small footprint, while the AT24C01D-SSHM-T trades hardware write protection for wider VCC range - making the 24LC014H-I/P optimal for industrial designs needing configurable addressing, 1 MHz throughput, and physical write-locking.

Availability

24LC014H-I/P is available at Aetrix Electronics and suitable for industrial sensor calibration, embedded power management, consumer appliance UI settings, and medical device configuration requiring stable component supply across extended production lifecycles.

Supply support for 24LC014H-I/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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory products, with a focus on embedded control and connectivity solutions.

The 24LC014H belongs to Microchip's serial EEPROM product line, designed specifically for reliable, low-power nonvolatile data storage in resource-constrained embedded systems operating across industrial and automotive temperature ranges.

FAQ

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

The 24LC014H-I/P supports up to 1 MHz I²C clock frequency when VCC is 2.5V–5.5V, as specified in Table 1-2 of the DS22077B datasheet. This is higher than the 400 kHz limit of the 24AA014H variant and requires SCL/SDA rise/fall times ≤300 ns. The 24LC014H-I/P must not be operated above 1 MHz, even with external timing adjustments.

Does the 24LC014H-I/P have built-in write protection, and how is it enabled?

Yes, the 24LC014H-I/P includes hardware write protection for memory addresses 40h–7Fh (upper half-array). Protection is enabled by connecting the WP pin to VCC; tying WP to VSS disables protection. This is a physical pin-level function - no software command or register access is involved. The 24LC014H-I/P does not support byte-level or software-controlled write lock.

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

The 24LC014H-I/P uses an 8-pin Plastic Dual In-line Package (PDIP) with 0.3-inch body width and 0.1-inch lead pitch. Per DS22077B page 15, the "I/P" suffix explicitly denotes Industrial-grade PDIP packaging. Pin 1 is A0, pin 4 is VSS, and pin 8 is VCC - consistent across all 8-pin variants including SOIC and TSSOP, though footprint differs.

How many devices can share the same I²C bus using the 24LC014H-I/P, and what determines uniqueness?

Up to eight 24LC014H-I/P devices can operate on a single I²C bus. Uniqueness is determined by the combination of A0, A1, and A2 pin states (each tied to VSS or VCC), forming a 3-bit chip-select field that maps to bits A2–A0 in the I²C control byte (1010 A2 A1 A0 R/W). All three pins must be hard-wired - floating or dynamically driven states are not permitted per Section 2.3 of DS22077B.

What is the write endurance and data retention specification for the 24LC014H-I/P?

The 24LC014H-I/P is rated for 1 million erase/write cycles and 200 years of data retention at 25°C, as confirmed in the Features section and Table 1-2 Note 4 of DS22077B. These values are characterized - not tested per unit - but guaranteed under specified conditions (25°C, VCC = 5.5V, block-mode cycling). Endurance degrades at elevated temperature or voltage; consult Microchip's Total Endurance™ Model for application-specific estimates.