Microchip Technology 24FC04T-E/Q6B36KVAO

Overview

24FC04T-E/Q6B36KVAO from Microchip Technology Inc. is a 4-Kbit I²C-compatible serial EEPROM organized as two 256 × 8-bit blocks, supporting 1 MHz clock frequency at 1.7–5.5 V supply, with hardware write-protection, 16-byte page buffer, and extended temperature operation to +125°C - used for configuration storage in automotive infotainment control modules.

For engineers reviewing the 24FC04T-E/Q6B36KVAO datasheet, 24FC04T-E/Q6B36KVAO pinout, 24FC04T-E/Q6B36KVAO application, or 24FC04T-E/Q6B36KVAO equivalent, key selection criteria include 1 MHz I²C timing compliance, E-temp (−40°C to +125°C) qualification, hardware WP pin functionality, 5 ms max page write time, and RoHS-compliant 8-lead SOIC packaging.

Technical Context

The 24FC04T-E/Q6B36KVAO implements a 2-wire I²C slave interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal architecture includes a 16-byte page latch, HV generator for EEPROM programming, and address pointer logic enabling current-address, random, and sequential read modes.

It supports full I²C protocol compliance including Start/Stop condition generation, ACK polling during write cycles, and block-select addressing via the B0 bit in the control byte. The device uses self-timed erase/write cycles and features factory-programmable options with >1 million endurance cycles and >200 years data retention.

Key Specifications

Pinout & Package

24FC04T-E/Q6B36KVAO is packaged in an 8-lead SOIC (SN) package with 3.90 mm body width and standard 1.27 mm pitch. Pin 1 is marked by a notch or beveled corner; the exposed pad is not present in this variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 24AA04T-I/MS and AT24C04D-SSHM-T, the 24FC04T-E/Q6B36KVAO uniquely combines 1 MHz speed, 1.7 V minimum supply, hardware WP, and −40°C to +125°C operation - making it the only drop-in option for AEC-Q100-compliant, high-speed, low-voltage automotive designs.

Availability

24FC04T-E/Q6B36KVAO is available at Aetrix Electronics and suitable for automotive infotainment, industrial PLC configuration, and medical device calibration requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 24FC04T-E/Q6B36KVAO 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 24FC04 belongs to Microchip's serial EEPROM product line, designed specifically for reliable, low-power, I²C-based nonvolatile data storage in automotive, industrial, and medical applications demanding extended temperature operation and AEC-Q100 qualification.

FAQ

What is the maximum I²C clock frequency supported by the 24FC04T-E/Q6B36KVAO?

The 24FC04T-E/Q6B36KVAO supports up to 1 MHz I²C clock frequency across its full 1.7 V to 5.5 V supply range and −40°C to +125°C operating temperature. This is confirmed in Table 1-2 of DS20001708M, where FCLK = 1000 kHz is specified for 1.7V ≤ VCC ≤ 5.5V under Extended temperature conditions. It outperforms the 24AA04 (max 400 kHz) and 24LC04B (max 400 kHz, min 2.5 V).

Does the 24FC04T-E/Q6B36KVAO have hardware write protection, and how is it implemented?

Yes, the 24FC04T-E/Q6B36KVAO includes a dedicated hardware Write-Protect (WP) pin (Pin 7). When WP is tied to VCC, the entire 4-Kbit memory array (addresses 000–1FF) is write-inhibited while read operations remain fully functional. This feature is active across the full temperature range and requires no firmware intervention - a key differentiator from software-only protection schemes used in alternatives like AT24C04D.

What package type is used for the 24FC04T-E/Q6B36KVAO, and what are its mechanical dimensions?

The 24FC04T-E/Q6B36KVAO uses the 8-lead plastic small outline (SOIC-N) package, designated SN in Microchip documentation. Its body width is 3.90 mm (0.150 in), overall length is 4.90 mm, pitch is 1.27 mm, and molded package thickness is 1.25–1.75 mm per Drawing No. C04-057-SN Rev D. This is a standard footprint compatible with automated SMT assembly and IPC-7351B land patterns.

How many erase/write cycles does the 24FC04T-E/Q6B36KVAO guarantee, and what is its data retention specification?

The 24FC04T-E/Q6B36KVAO guarantees 1,000,000 erase/write cycles and >200 years of data retention at 25°C, as specified in Table 1-1 (Note 4) and Section 1.0 of DS20001708M. These values are characterized - not 100% tested - but ensured per Microchip's Total Endurance™ model. Endurance remains valid under extended temperature conditions when operated within rated VCC and timing specifications.

Is the 24FC04T-E/Q6B36KVAO AEC-Q100 qualified, and for which stress grade?

Yes, the 24FC04T-E/Q6B36KVAO is AEC-Q100 qualified for Grade 1 (−40°C to +125°C), as explicitly stated in the "Features" section of DS20001708M. This qualification covers accelerated environmental stress tests including HTOL, TCT, and ESD, confirming suitability for automotive powertrain, chassis, and body electronics where reliability under thermal cycling and electrical transients is mandatory.