NXP Semiconductors LPC2290FBD144,551

Overview

LPC2290FBD144,551 from NXP Semiconductors is a 16/32-bit ARM7TDMI-S microcontroller in LQFP144 package, delivering up to 72 MHz CPU clock, 16 kB on-chip SRAM, dual CAN 2.0B interfaces, eight-channel 10-bit ADC (2.44 µs conversion), and configurable external memory interface supporting four banks up to 16 MB each. It targets automotive control units, industrial PLCs, medical monitoring systems, and CAN-based communication gateways.

For engineers reviewing the LPC2290FBD144,551 datasheet, LPC2290FBD144,551 pinout, LPC2290FBD144,551 application, or LPC2290FBD144,551 equivalent, key selection criteria include its dual-CAN timing robustness, 5 V-tolerant GPIO count (up to 76 pins), 1.8 V core / 3.3 V I/O dual-rail operation, and embedded trace support for real-time debugging in safety-critical firmware development.

Technical Context

The LPC2290FBD144,551 implements the ARM7TDMI-S core with Thumb instruction set extension, enabling 30 % code size reduction without significant performance loss. Its Vectored Interrupt Controller (VIC) supports configurable priorities and vector addresses for deterministic response to nine external interrupt sources and peripheral events.

It integrates two independent CAN controllers with advanced acceptance filters, an external memory controller with 8/16/32-bit data bus width per bank, and a 10-bit ADC with dedicated result registers to minimize interrupt latency. The device lacks SSP and Fast GPIO enhancements found in the /01 variant, confirming its base-specification status per ordering table.

Key Specifications

Pinout & Package

LQFP144 package (SOT486-1), 20 × 20 × 1.4 mm body, 144 leads, lead pitch 0.5 mm. Features 5 V-tolerant I/O pads with TTL levels, hysteresis, and 10 ns slew rate control; analog pins isolated with dedicated VSSA and VDDA supplies.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC2292FBD144,551 and LPC2129FBD64,557, the LPC2290FBD144,551 provides the only combination of dual CAN, external memory interface, and 144-pin I/O scalability in the LPC22xx family at its specific memory and peripheral configuration - making it irreplaceable for multi-bank, multi-network industrial gateways.

Availability

LPC2290FBD144,551 is available at Aetrix Electronics and suitable for automotive control units, industrial PLCs, and medical monitoring systems requiring stable component supply and long-term lifecycle assurance.

Supply support for LPC2290FBD144,551 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications.

The LPC2290FBD144,551 belongs to the LPC2200 series of ARM7-based microcontrollers designed specifically for real-time, safety-aware embedded systems requiring dual CAN, high GPIO count, and external memory expansion capability.

FAQ

What is the maximum operating frequency of the LPC2290FBD144,551?

The LPC2290FBD144,551 supports a maximum CPU clock of 72 MHz, achieved via its programmable on-chip PLL with 100 µs settling time. This frequency is fully supported across the industrial temperature range (−40 °C to +85 °C) and enables deterministic real-time execution for CAN messaging and control algorithms in the LPC2290FBD144,551.

Does the LPC2290FBD144,551 include an on-chip debugger interface?

Yes, the LPC2290FBD144,551 integrates EmbeddedICE-RT and Embedded Trace interfaces compliant with ARM JTAG standards. These enable real-time debugging and instruction-level tracing using standard tools like Keil µVision or SEGGER J-Link, without requiring external debug hardware beyond a JTAG connector on the target board.

How many analog inputs does the LPC2290FBD144,551 support, and what is their resolution?

The LPC2290FBD144,551 features an eight-channel 10-bit successive approximation register (SAR) ADC with a minimum conversion time of 2.44 µs. Analog inputs AIN0–AIN7 are mapped to dedicated pins (e.g., P0.27–P0.30, P2.30–P2.31, P3.28–P3.29) and operate with separate analog power (VDDA(3V3)) and ground (VSSA) for noise immunity in the LPC2290FBD144,551.

Is the LPC2290FBD144,551 pin-compatible with the LPC2290FBD144/01 variant?

Yes, the LPC2290FBD144,551 is pin-compatible with the LPC2290FBD144/01, sharing identical LQFP144 packaging and pin assignments. However, the /01 variant adds SSP, Fast GPIO, and higher SRAM (64 kB), meaning firmware and hardware layouts are interchangeable, but full feature utilization requires verifying peripheral enablement in the LPC2290FBD144,551's configuration registers.

What power supply requirements must be met for reliable operation of the LPC2290FBD144,551?

The LPC2290FBD144,551 requires two independent power domains: 1.65–1.95 V (nominal 1.8 V ±0.15 V) for VDD(1V8) and VDDA(1V8), and 3.0–3.6 V (nominal 3.3 V ±10 %) for VDD(3V3) and VDDA(3V3). Analog supplies (VDDA/VSSA) must be physically isolated from digital planes to maintain ADC accuracy and PLL stability in the LPC2290FBD144,551.