NXP Semiconductors LPC2220FBD144,551

Overview

LPC2220FBD144,551 from NXP Semiconductors is a 32-bit ARM7TDMI-S microcontroller in LQFP144 package, operating at up to 75 MHz with 64 kB on-chip SRAM, eight-channel 10-bit ADC (2.44 µs conversion), dual 32-bit timers with PWM and capture/compare, and dual UARTs with fractional baud rate generation. It serves as the central control unit in industrial gateways requiring real-time I/O, analog sensing, and protocol translation.

For engineers reviewing the LPC2220FBD144,551 datasheet, LPC2220FBD144,551 pinout, LPC2220FBD144,551 application, or LPC2220FBD144,551 equivalent, key selection criteria include its 64 kB RAM capacity, 75 MHz PLL clock, 5 V-tolerant GPIO count (up to 76 pins), external memory interface with four banks, and integrated debug interfaces (EmbeddedICE-RT and ETM).

Technical Context

The LPC2220FBD144,551 implements the ARM7TDMI-S core with Thumb instruction set support for 30 % code size reduction without significant performance loss. Its memory subsystem includes a configurable external bus controller supporting 8/16/32-bit data widths across four independent banks, each up to 16 MB.

Real-time capabilities are enabled by two 32-bit timers (each with four capture and four compare channels), a dedicated RTC, watchdog, and Vectored Interrupt Controller (VIC) with programmable priorities and vector addresses. The ADC features dedicated result registers and 5 V-tolerant pads when configured for digital I/O.

Key Specifications

Pinout & Package

LPC2220FBD144,551 uses a plastic low-profile quad flat package (LQFP144) with 20 × 20 × 1.4 mm body (SOT486-1), featuring 144 leads and 5 V-tolerant I/O capability across multiple ports.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC2220FBD144,551, LPC2210FBD144 offers reduced memory and GPIO performance at lower cost, while LPC2220FET144 delivers identical functionality in a smaller footprint-enabling trade-offs between manufacturability, board space, and real-time processing headroom.

Availability

LPC2220FBD144,551 is available at Aetrix Electronics and suitable for industrial control gateways, medical sensor hubs, and access control terminals requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for LPC2220FBD144,551 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 company specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The LPC22xx series was designed for cost-sensitive, real-time embedded systems requiring rich peripheral integration, low-power operation, and ARM compatibility-targeting industrial automation, medical instrumentation, and building control.

FAQ

What is the maximum operating frequency of the LPC2220FBD144,551?

The LPC2220FBD144,551 operates at a maximum CPU clock frequency of 75 MHz, achieved through its programmable on-chip Phase-Locked Loop (PLL) with a 100 µs settling time. This frequency is confirmed in the official NXP datasheet Rev. 06 and applies specifically to the LPC2220 variant, distinguishing it from the 60 MHz LPC2210. The PLL accepts input clocks from 1 MHz to 25 MHz.

Does the LPC2220FBD144,551 support in-system programming?

Yes, the LPC2220FBD144,551 supports in-system programming via its serial bootloader using UART0. This allows firmware updates without removing the device from the target board. The bootloader is activated by asserting specific states on BOOT0/BOOT1 pins during reset, and it supports both download and programming functions per the NXP LPC2210/2220 datasheet Section 2.1.

How many ADC channels does the LPC2220FBD144,551 have, and what is their resolution?

The LPC2220FBD144,551 integrates an eight-channel 10-bit successive approximation register (SAR) ADC with a minimum conversion time of 2.44 µs. All eight inputs (AIN0–AIN7) are accessible on dedicated pins and are 5 V tolerant when configured for digital I/O, as documented in Table 4 of the NXP datasheet Rev. 06.

Is the LPC2220FBD144,551 pin-compatible with the LPC2210FBD144?

No, the LPC2220FBD144,551 is not pin-compatible with the LPC2210FBD144 in functional terms despite sharing the same LQFP144 package. While physical pinout matches, the LPC2220FBD144,551 enables Fast GPIO and SSP features that require different internal routing and configuration - these are absent in the LPC2210FBD144, and software initialization must account for variant-specific register bits.

What debug interfaces are supported by the LPC2220FBD144,551?

The LPC2220FBD144,551 supports JTAG-based debugging via EmbeddedICE-RT and real-time instruction tracing via the Embedded Trace Module (ETM). These interfaces enable non-intrusive breakpoints, watchpoints, and high-speed trace capture using tools like Keil µVision or SEGGER J-Trace, as specified in Section 2.1 and Figure 1 of the NXP LPC2210/2220 datasheet Rev. 06.