NXP Semiconductors LPC2214FBD144,551

Overview

LPC2214FBD144,551 from NXP Semiconductors is a 16/32-bit ARM7TDMI-S microcontroller in LQFP144 package, featuring 256 kB on-chip flash, 16 kB SRAM, 8-channel 10-bit ADC (2.44 µs conversion), six PWM outputs, and dual 32-bit timers with capture/compare capability - deployed in industrial control systems requiring real-time interrupt response and external memory interfacing.

For engineers reviewing the LPC2214FBD144,551 datasheet, LPC2214FBD144,551 pinout, LPC2214FBD144,551 application, or LPC2214FBD144,551 equivalent, key selection criteria include 60 MHz CPU clock with PLL settling time of 100 µs, 5 V-tolerant GPIO (up to 112 pins), dual UARTs with hardware flow control, and support for ISP/IAP programming via on-chip bootloader.

Technical Context

The LPC2214FBD144,551 implements an ARM7TDMI-S core with Thumb instruction set support, enabling 32-bit performance at reduced code size. Its 128-bit wide memory interface and accelerator architecture sustain full 60 MHz operation while executing 32-bit code.

It integrates a Vectored Interrupt Controller (VIC) supporting FIQ/IRQ prioritization, EmbeddedICE-RT and trace interfaces for real-time debugging, and a configurable external memory controller with four banks (up to 16 MB each, 8/16/32-bit data width) - all operating under dual power domains: 1.8 V core and 3.3 V I/O with 5 V-tolerant pins.

Key Specifications

Pinout & Package

LQFP144 package (SOT486-1), 20 × 20 × 1.4 mm body, with 144 leads and exposed thermal pad - compatible with standard reflow profiles and industrial PCB assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC2214FBD144,551, the LPC2212FBD144/01 offers identical functionality at lower flash capacity and cost, while the LPC2148FBD64 trades external memory support for USB and higher flash density in a smaller package - making each alternative optimal only under specific architectural constraints.

Availability

LPC2214FBD144,551 is available at Aetrix Electronics and suitable for industrial control, medical diagnostics, access control, and protocol gateway applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for LPC2214FBD144,551 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, with leadership in ARM-based microcontrollers and edge processing.

The LPC2214FBD144,551 belongs to the LPC2000 family - designed for cost-effective, real-time embedded control in resource-constrained environments where reliability, debug visibility, and mixed-signal integration are critical.

FAQ

What is the maximum operating frequency of the LPC2214FBD144,551?

The LPC2214FBD144,551 achieves a maximum CPU clock frequency of 60 MHz using its on-chip PLL, which has a specified settling time of 100 µs. This frequency is sustained across the full industrial temperature range (−40 °C to +85 °C) and enables deterministic real-time execution of control loops and communication stacks. The LPC2214FBD144,551 maintains this speed via its 128-bit wide memory interface and accelerator architecture, eliminating wait states during 32-bit code fetch.

Does the LPC2214FBD144,551 support in-system programming (ISP)?

Yes, the LPC2214FBD144,551 supports In-System Programming via its UART0 interface using the on-chip bootloader. Flash programming takes 1 ms per 512-byte line, and sector or full-chip erase completes in 400 ms. The bootloader also enables Code Read Protection (CRP) with three security levels, disabling JTAG and ISP access while preserving the ability to erase flash - ensuring secure field firmware updates. The LPC2214FBD144,551 retains full ISP capability even after CRP activation.

How many analog inputs does the LPC2214FBD144,551 ADC support?

The LPC2214FBD144,551 integrates an 8-channel 10-bit successive approximation ADC with conversion time as low as 2.44 µs. All eight analog inputs (AIN0–AIN7) are physically routed to dedicated pins - AIN0–AIN3 on Port 0, AIN4–AIN5 on Port 2, and AIN6–AIN7 on Port 3 - with no internal multiplexing required for pin assignment. Each input is 5 V tolerant when configured as digital I/O, and the ADC uses dedicated result registers to minimize interrupt overhead during data acquisition. This capability is fully implemented in the LPC2214FBD144,551.

What power supply requirements does the LPC2214FBD144,551 have?

The LPC2214FBD144,551 requires two independent power domains: a 1.8 V ±0.15 V supply (VDD(1V8) and VDDA(1V8)) for the core and analog circuitry, and a 3.3 V ±10 % supply (VDD(3V3) and VDDA(3V3)) for I/O and external memory interface. Analog supplies (VDDA/VSSA) must be isolated from digital grounds to maintain ADC accuracy. All I/O pins are 5 V tolerant, allowing safe interfacing with legacy 5 V logic without external level shifters - a key design advantage confirmed for the LPC2214FBD144,551.

Is the LPC2214FBD144,551 pin-compatible with other LPC22xx devices?

Yes, the LPC2214FBD144,551 shares identical pin configuration with the LPC2212FBD144/01 and other /01-suffix variants in the LQFP144 package (SOT486-1), including matching pin functions, electrical characteristics, and thermal pad layout. This allows direct substitution in existing designs where flash capacity permits - though firmware must be validated for 256 kB usage. The LPC2214FBD144,551 is not pin-compatible with 64-pin variants like the LPC2148FBD64 due to differing package size and peripheral mapping.