Microchip Technology 24FC02-E/P

Overview

24FC02-E/P from Microchip Technology Inc. is a 2-Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory with hardware write-protection, 1 MHz clock support (down to 1.7V), 8-byte page buffer, and extended temperature operation from –40°C to +125°C in 8-lead PDIP package. It enables nonvolatile configuration storage in space-constrained industrial control modules.

For engineers reviewing the 24FC02-E/P datasheet, 24FC02-E/P pinout, 24FC02-E/P application, or 24FC02-E/P equivalent, key selection criteria include its 1.7V–5.5V supply range, 1 µA standby current at extended temperature, Schmitt-triggered I²C inputs for noise immunity, and factory-programmable capability for secure device identity storage.

Technical Context

The 24FC02-E/P implements a two-wire I²C interface with fixed 7-bit client address (1010xxx) and R/W bit control, supporting byte and page writes up to 8 bytes per cycle. Its internal Address Pointer auto-increments during sequential reads and random access operations.

It features on-chip HV generator for EEPROM programming, slope-controlled outputs to suppress ground bounce, and integrated Schmitt triggers on SDA/SCL with 50 ns spike filtering - all enabling robust operation on electrically noisy industrial buses without external signal conditioning.

Key Specifications

Pinout & Package

8-Lead Plastic Dual In-Line Package (PDIP), 300 mil body width, through-hole mounting compatible with legacy PCB assembly processes and prototyping breadboards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 24AA02-I/P, the 24FC02-E/P delivers higher-speed communication and guaranteed operation at +125°C - critical for automotive and industrial edge nodes. Against AT24C02D-SSHM-T, it offers identical electrical performance but in a through-hole PDIP package enabling breadboard validation and legacy repair compatibility.

Availability

24FC02-E/P is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive ECUs, medical infusion pumps, and smart energy meters requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 24FC02-E/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 leading provider of microcontrollers, analog components, and memory solutions, serving industrial, automotive, and consumer markets with high-reliability silicon.

The 24FC02 belongs to Microchip's serial EEPROM product line, designed specifically for robust, low-power nonvolatile storage in systems demanding extended temperature operation, noise immunity, and hardware-level write protection.

FAQ

What is the maximum I²C clock frequency supported by the 24FC02-E/P?

The 24FC02-E/P supports up to 1 MHz I²C clock frequency across its full 1.7V–5.5V supply range, unlike earlier variants such as 24AA02 (limited to 100 kHz below 2.5V). This enables faster configuration loading in time-sensitive applications like industrial PLC boot sequences. The 24FC02-E/P datasheet confirms this specification in Table 1-2 under FCLK parameter.

Does the 24FC02-E/P require external pull-up resistors on SDA and SCL lines?

Yes, the 24FC02-E/P requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. A 2 kΩ resistor is recommended for 1 MHz operation; values scale inversely with bus capacitance and speed. The 24FC02-E/P datasheet specifies this requirement in Section 2.2 and Figure 4-1 timing diagrams.

How does hardware write-protection work on the 24FC02-E/P?

Hardware write-protection on the 24FC02-E/P is controlled by the WP pin: tying it to VCC disables all write operations (including byte and page writes) while preserving full read functionality. Tying WP to VSS enables normal read/write access. This logic-level gating is implemented internally and cannot be overridden by software commands. The 24FC02-E/P datasheet details this in Section 2.4 and Figure 6-1.

What is the endurance rating of the 24FC02-E/P, and how is it tested?

The 24FC02-E/P is rated for 1,000,000 erase/write cycles at 25°C and 5.5V in page mode, as specified in Table 1-2 Note 4. This endurance is ensured by characterization (not 100% production tested) and validated using accelerated stress methods per JEDEC standards. The 24FC02-E/P datasheet states this value applies to both byte and page write operations.

Can the 24FC02-E/P be used in automotive applications?

Yes, the 24FC02-E/P is AEC-Q100 qualified and rated for extended temperature operation from –40°C to +125°C, making it suitable for automotive applications including body control modules, infotainment systems, and ADAS sensors. Its ESD protection (>4 kV), robust I²C interface with Schmitt triggers, and 200-year data retention meet automotive reliability requirements. The 24FC02-E/P datasheet confirms AEC-Q100 qualification in the Features section.