Microchip Technology 24LC02BT-E/SN16KVAO

Overview

24LC02BT-E/SN16KVAO from Microchip Technology Inc. is a 2-Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory with hardware write-protection, 8-byte page buffer, and operation from 2.5V to 5.5V. It supports 400 kHz clock frequency, delivers ≤1 mA read current and ≤1 µA standby current (I-temp), and is qualified for industrial and extended temperature ranges (–40°C to +125°C). It is used in embedded systems for storing calibration data, configuration settings, and device identifiers.

For engineers reviewing the 24LC02BT-E/SN16KVAO datasheet, 24LC02BT-E/SN16KVAO pinout, 24LC02BT-E/SN16KVAO application, or 24LC02BT-E/SN16KVAO equivalent, this page provides verified electrical specifications, SOIC-8 package pin mapping, I²C timing compliance details, endurance and retention metrics, and validated alternative parts for design-in flexibility.

Technical Context

The 24LC02BT-E/SN16KVAO implements a two-wire I²C interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal address pointer enables current-address, random, and sequential read modes, while the 8-byte page write buffer reduces bus overhead during multi-byte writes.

Write protection is controlled solely by the WP pin - tied to VSS for full read/write access or VCC to inhibit all writes across the entire 256-byte array. The device uses self-timed erase/write cycles with no external timing components required, and supports acknowledge polling to detect write completion without fixed delays.

Key Specifications

Pinout & Package

24LC02BT-E/SN16KVAO is supplied in an 8-lead SOIC (Small Outline Integrated Circuit) package, 3.90 mm body width, with gull-wing leads and JEDEC-standard footprint (package code SN). Pin 1 is marked with a beveled corner or dot.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 24LC02BT-E/SN16KVAO, the 24LC02B-I/SN offers identical functionality at lower cost but sacrifices extended temperature and automotive qualification; the AT24C02D-SSHM-T provides supply resilience with matching electrical specs but omits AEC-Q100 and E-temp validation.

Availability

24LC02BT-E/SN16KVAO is available at Aetrix Electronics and suitable for industrial sensor nodes, medical device calibration storage, and automotive body control modules requiring stable component supply, long-term data retention, and AEC-Q100-compliant nonvolatile memory.

Supply support for 24LC02BT-E/SN16KVAO 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 manufacturer specializing in microcontrollers, analog devices, and memory products with emphasis on reliability, longevity, and embedded system integration.

The 24LC02B family is designed for cost-sensitive, space-constrained applications requiring robust, low-power serial EEPROM storage in industrial, automotive, and medical equipment where data integrity and long-term retention are critical.

FAQ

What is the maximum I²C clock frequency supported by the 24LC02BT-E/SN16KVAO?

The 24LC02BT-E/SN16KVAO supports a maximum I²C clock frequency of 400 kHz across its full operating voltage range (2.5V to 5.5V). It is not rated for 1 MHz operation - that capability is exclusive to the 24FC02 variant. This 400 kHz limit ensures timing compliance with standard-mode I²C specifications and maintains robust noise immunity in electrically noisy environments.

Does the 24LC02BT-E/SN16KVAO require external pull-up resistors on SDA and SCL lines?

Yes, the 24LC02BT-E/SN16KVAO requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. A typical value is 2 kΩ for 400 kHz operation at 3.3V or 5V. Pull-up strength must be selected based on bus capacitance and speed requirements to meet rise time specifications (≤300 ns for VCC ≥2.5V).

Can the 24LC02BT-E/SN16KVAO operate below 2.5V?

No, the 24LC02BT-E/SN16KVAO has a minimum supply voltage of 2.5V as specified in its datasheet. Operation below 2.5V is not guaranteed and may result in unreliable read/write behavior or failure to acknowledge I²C transactions. For sub-2.5V applications, consider the 24AA02 (1.7V min) or 24FC02 (1.7V min) variants instead.

How is write protection implemented on the 24LC02BT-E/SN16KVAO?

Write protection on the 24LC02BT-E/SN16KVAO is implemented via the WP (Write-Protect) pin: tying WP to VCC disables all write operations to the entire 256-byte memory array while permitting unrestricted reads; tying WP to VSS enables full read/write access. No software command or internal register controls this function - it is purely hardware-based and active immediately upon power-up.

What is the endurance and data retention specification for the 24LC02BT-E/SN16KVAO?

The 24LC02BT-E/SN16KVAO is rated for more than 1,000,000 erase/write cycles and guarantees data retention exceeding 200 years at +25°C. These values are characterized and ensured per Microchip's qualification standards, making it suitable for applications requiring frequent field updates and multi-decade archival storage without refresh.