NXP Semiconductors LPC2290FBD144/01,5

Overview

LPC2290FBD144/01 from NXP Semiconductors is a 16/32-bit ARM7TDMI-S microcontroller in LQFP144 package, featuring 64 kB on-chip SRAM, dual CAN 2.0B interfaces, eight-channel 10-bit ADC (2.44 µs conversion), and a 72 MHz CPU clock. It delivers real-time emulation, embedded trace support, and 5 V-tolerant GPIOs-making it suitable for automotive control units, industrial CAN gateways, and medical monitoring systems with external memory expansion.

For engineers reviewing the LPC2290FBD144/01 datasheet, LPC2290FBD144/01 pinout, LPC2290FBD144/01 application, or LPC2290FBD144/01 equivalent, key selection criteria include its dual-CAN timing integrity, fast GPIO toggle rate (3.5× baseline), dedicated ADC result registers, fractional baud rate UARTs, and configurable external memory interface supporting four 16 MB banks at 8/16/32-bit data width.

Technical Context

The LPC2290FBD144/01 implements the ARM7TDMI-S core with Thumb instruction set extension for code density optimization, enabling up to 30 % smaller firmware footprint without significant performance loss. Its AHB/APB bus architecture separates high-speed peripherals (CAN, timers, ADC) from lower-bandwidth functions (I²C, SPI), ensuring deterministic interrupt latency.

Real-time debug capability is provided via EmbeddedICE-RT and hardware-supported trace packet output on P1[20:16] and P1[25:24], synchronized by TRACECLK and TRACESYNC. The device supports boot from internal flash or external memory (8/16/32-bit) controlled by BOOT0/BOOT1 pins during reset assertion.

Key Specifications

Pinout & Package

LQFP144 package (SOT486-1), 20 × 20 × 1.4 mm body, 0.5 mm pitch, with exposed thermal pad (not electrically connected). Pin 1 marked by dot; pin numbering follows standard counter-clockwise sequence from top-left corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ARM7-based microcontroller applications.

Compared with LPC2290FBD144/01, LPC2292FBD144/01 trades external memory flexibility for integrated flash boot capability, while LPC2368FBD100 abandons the external bus entirely to add USB/Ethernet-making LPC2290FBD144/01 uniquely balanced for CAN gateway designs requiring both expandability and deterministic real-time performance.

Availability

LPC2290FBD144/01 is available at Aetrix Electronics and suitable for automotive control units, industrial CAN gateways, and medical monitoring systems requiring stable component supply across extended temperature ranges (−40 °C to +85 °C) and long product lifecycles.

Supply support for LPC2290FBD144/01 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in ARM-based microcontrollers and CAN ecosystem integration.

The LPC2290FBD144/01 belongs to NXP's legacy LPC2000 ARM7 family, designed specifically for deterministic real-time control in safety-critical and noise-prone environments where dual CAN, external memory expansion, and robust debug infrastructure are essential.

FAQ

What is the maximum operating frequency of the LPC2290FBD144/01?

The LPC2290FBD144/01 operates at a maximum CPU clock frequency of 72 MHz, achieved via its on-chip PLL with 100 µs settling time. This frequency is fully supported across the −40 °C to +85 °C industrial temperature range and enables precise timing for dual CAN bus arbitration, 10-bit ADC sampling at 2.44 µs, and real-time PWM generation-all verified in the official NXP LPC2290_3 datasheet Rev. 03.

Does the LPC2290FBD144/01 include on-chip flash memory?

No, the LPC2290FBD144/01 does not contain on-chip flash memory. It features 64 kB of on-chip static RAM and relies on external memory (via its configurable 4-bank interface) or ISP programming through UART0 for firmware storage. This distinguishes it from variants like LPC2292FBD144/01, which integrates 16 kB flash-confirmed in Table 2 of the ordering information section.

How many CAN interfaces does the LPC2290FBD144/01 support, and what version?

The LPC2290FBD144/01 supports two independent CAN 2.0B-compliant controllers with advanced acceptance filtering. Both interfaces operate concurrently and are electrically isolated via dedicated pins (TD1/RD1 and TD2/RD2), enabling full-duplex gateway functionality without software arbitration-explicitly stated in Section 2.2 "Key features common for LPC2290 and LPC2290/01".

What is the purpose of the BOOT0 and BOOT1 pins on the LPC2290FBD144/01?

BOOT0 and BOOT1 are configuration pins sampled during reset assertion to determine the boot source: 00 = 8-bit memory on CS0, 01 = 16-bit memory on CS0, 10 = 32-bit memory on CS0, 11 = internal flash (though LPC2290FBD144/01 has no flash, this mode defaults to ISP via UART0). Their internal pull-up resistors ensure safe startup if left unconnected-documented in Table 3 pin description for P2.26 and P2.27.

Is the LPC2290FBD144/01 pin-compatible with earlier LPC2290 variants?

Yes, the LPC2290FBD144/01 is pin-compatible with the original LPC2290FBD144 in the same LQFP144 package (SOT486-1). The /01 suffix denotes enhanced features-including higher CPU clock, 64 kB SRAM, fast GPIO, improved UARTs, SSP, and upgraded ADC-but retains identical pinout, electrical characteristics, and mechanical footprint per NXP's ordering information and pin description tables.