NXP Semiconductors LPC2460FBD208,551

Overview

LPC2460FBD208 from NXP Semiconductors is a flashless 32-bit ARM7TDMI-S microcontroller operating at up to 72 MHz, featuring dual AHB buses, 98 kB on-chip SRAM (including 16 kB Ethernet buffer), MII/RMII Ethernet MAC, and dual CAN 2.0B controllers - deployed in industrial protocol gateways requiring deterministic real-time I/O and multi-interface bridging.

For engineers reviewing the LPC2460FBD208 datasheet, LPC2460FBD208 pinout, LPC2460FBD208 application, or LPC2460FBD208 equivalent, key selection criteria include Ethernet+CAN co-processing capability, 208-pin LQFP package compatibility, 3.3 V single-supply operation, and support for USB 2.0 full-speed device/host/OTG with integrated PHY.

Technical Context

The LPC2460FBD208 implements an ARM7TDMI-S core with JTAG and embedded trace debug interfaces, executing both 32-bit ARM and 16-bit Thumb instructions to balance performance and code density. Its dual AHB architecture isolates Ethernet DMA and USB DMA paths to eliminate bus contention.

Hardware peripherals are partitioned across two independent power domains: one for high-speed interfaces (Ethernet, USB, external memory) and another for low-power subsystems (RTC, battery-backed SRAM, watchdog). Clocking supports multiple sources - 1–25 MHz crystal, 4 MHz ±1% internal RC oscillator, or RTC oscillator - with on-chip PLL enabling CPU operation up to 72 MHz.

Key Specifications

Pinout & Package

Package: LQFP208 (SOT459-1), plastic low-profile quad flat package, 208 leads, body size 28 × 28 × 1.4 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC2460FBD208, LPC2368FBD100 sacrifices Ethernet, second CAN, and external memory support for lower cost and smaller footprint, while LPC2478FBD208 adds integrated flash for self-contained operation but shares identical peripheral set and pin compatibility.

Availability

LPC2460FBD208 is available at Aetrix Electronics and suitable for industrial protocol gateways, medical data aggregators, communications backhaul nodes, and automated test equipment requiring stable component supply and long-term manufacturability.

Supply support for LPC2460FBD208 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The LPC2400 series was designed specifically for high-integration, flashless microcontroller applications demanding multi-protocol bridging, real-time deterministic I/O, and robust industrial-grade peripheral sets - targeting protocol conversion and embedded gateway use cases.

FAQ

What is the maximum operating frequency of the LPC2460FBD208?

The LPC2460FBD208 operates at a maximum CPU frequency of 72 MHz, achieved via its on-chip PLL driven by the main oscillator (1–25 MHz crystal), internal 4 MHz RC oscillator, or RTC oscillator. This frequency is sustained across the full industrial temperature range (−40 °C to +85 °C) under 3.0–3.6 V supply conditions.

Does the LPC2460FBD208 include on-chip flash memory?

No, the LPC2460FBD208 is a flashless microcontroller. It relies on external memory (via EMC) or on-chip SRAM for program storage and execution. Boot code must be loaded externally - commonly through ISP via UART or IAP routines executed from SRAM.

How many CAN interfaces does the LPC2460FBD208 support?

The LPC2460FBD208 integrates two independent CAN 2.0B controllers, each supporting standard and extended frame formats, bit rates up to 1 Mbps, and message objects with hardware acceptance filtering - enabling simultaneous communication on separate CAN networks.

What is the purpose of the 2 kB RTC-powered SRAM in the LPC2460FBD208?

The 2 kB SRAM powered from the RTC domain retains critical data (e.g., calibration values, event logs, configuration flags) during main power-down or deep power-down modes. It remains accessible to the RTC alarm and wake-up logic even when the core and most peripherals are unpowered.

Can the LPC2460FBD208 operate without an external crystal?

Yes - the LPC2460FBD208 includes a factory-trimmed 4 MHz internal RC oscillator accurate to ±1 %, usable as the system clock source. However, this oscillator cannot drive CAN or USB peripherals; those require the main crystal (1–25 MHz) or RTC oscillator for timing compliance.