NXP Semiconductors LPC2927FBD144,551

Overview

LPC2927FBD144 from NXP Semiconductors is an ARM968E-S-based microcontroller operating up to 125 MHz, featuring 512 kB flash, 56 kB SRAM + 2 × 32 kB TCM, dual CAN 2.0B controllers, two LIN 2.0 masters, full-speed USB 2.0 OTG, three 10-bit ADCs (24 total channels), and 104 GPIOs in a 144-pin LQFP package - deployed in industrial automation gateways requiring real-time CAN/LIN bridging and USB host-device flexibility.

For engineers reviewing the LPC2927FBD144 datasheet, LPC2927FBD144 pinout, LPC2927FBD144 application, or LPC2927FBD144 equivalent, this page delivers verified core parameters (CPU clock, memory map, peripheral integration), validated LQFP144 pin functions, confirmed use cases in automotive body control and industrial HMI, and two technically documented alternative MCUs with explicit functional and memory trade-offs.

Technical Context

The LPC2927FBD144 implements a multi-layer AHB bus architecture running at 125 MHz with four independent layers, enabling concurrent access to TCM, SRAM, flash, and peripherals without arbitration stalls. Its dual-clock-generation units (CGU0 for CPU/system clocks, CGU1 for USB) support dynamic frequency scaling and independent module-level clock gating.

Peripheral subsystems are partitioned across three APB buses and one dedicated event router APB, with DMA routing via GPDMA controller supporting transfers between UARTs, SPIs, CAN, and both TCM blocks. The Vectored Interrupt Controller (VIC) provides 16 priority levels and supports wake-up from power-down via CAN/LIN activity or external interrupt pins.

Key Specifications

Pinout & Package

144-pin LQFP package (SOT486-1), 20 mm × 20 mm body, 0.5 mm pitch, exposed pad not specified. Pin functions include five GPIO ports (P0–P3, P5), dual USB differential pairs (USB_D+, USB_D−), CAN0/CAN1 transceiver pins, LIN0/LIN1 UART-compatibles, ADC analog inputs (VREFP/VREFN, ADC0–2 channels), and dedicated clock/reset/test signals (XIN_OSC, XOUT_OSC, RST, TRST, TCK, TMS, TDI, TDO, JTAGSEL).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ARM9-based microcontroller applications.

Compared with LPC2927FBD144, LPC2930FBD144 offers higher flash capacity with identical timing/peripheral behavior, while LPC1788FBD208 trades LIN/CAN flexibility and USB OTG for lower cost and Cortex-M3 ecosystem compatibility - making LPC2927FBD144 optimal for mixed-protocol automotive and industrial gateways requiring hardware LIN masters and dual CAN.

Availability

LPC2927FBD144 is available at Aetrix Electronics and suitable for industrial automation gateways, automotive body control modules, and smart energy meter interfaces requiring stable component supply, long-term lifecycle assurance, and qualified sourcing for production ramp.

Supply support for LPC2927FBD144 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 automotive networking protocols.

The LPC29xx product line was engineered specifically for mixed-protocol embedded systems requiring simultaneous CAN, LIN, and USB connectivity - targeting automotive gateway, industrial control, and medical device applications demanding real-time determinism and low-power operation.

FAQ

What is the maximum CPU clock frequency supported by the LPC2927FBD144?

The LPC2927FBD144 supports a maximum CPU clock frequency of 125 MHz, achieved using its on-chip PLL with a 10–25 MHz crystal oscillator input. This frequency is sustained across the full −40 °C to +85 °C operating range when powered by 1.8 V ±5 % for the core and 2.7–3.6 V for I/O. The LPC2927FBD144 uses dynamic clock scaling to reduce power during low-load periods without compromising real-time response.

Does the LPC2927FBD144 include hardware support for LIN 2.0 communication?

Yes, the LPC2927FBD144 integrates two independent LIN 2.0 master controllers with full hardware protocol handling, including automatic header generation, checksum calculation, and error detection. Each LIN interface can be reconfigured as a standard UART, providing design flexibility. The LPC2927FBD144 does not require external LIN transceivers for basic node operation, reducing BOM cost and board space.

How much on-chip memory does the LPC2927FBD144 provide for code and data storage?

The LPC2927FBD144 provides 512 kB of on-chip flash memory for program storage, 56 kB of general-purpose SRAM, and two tightly coupled memories (32 kB ITCM for instructions and 32 kB DTCM for data). Additionally, it includes 16 kB of byte-erasable EEPROM for non-volatile parameter storage and 8 kB of ETB SRAM accessible for application use. This memory architecture enables deterministic real-time execution and robust firmware update strategies.

What peripheral interfaces are available on the LPC2927FBD144 for industrial communication?

The LPC2927FBD144 offers dual CAN 2.0B controllers with hardware message filtering, two LIN 2.0 masters, two UARTs with RS485/EIA-485 (9-bit) support, three Q-SPI interfaces, two I²C buses, and a full-speed USB 2.0 OTG controller with integrated PHY. These interfaces enable robust industrial communication in gateways, PLCs, and sensor hubs - particularly where mixed-protocol interoperability (e.g., CAN-to-USB bridging) is required without external level shifters or transceivers.

Is the LPC2927FBD144 pin-compatible with other members of the LPC29xx family?

Yes, the LPC2927FBD144 is pin-compatible with LPC2926FBD144 and LPC2929FBD144 in the same LQFP144 package, sharing identical pin assignments, peripheral mappings, and electrical characteristics. Differences are limited to flash memory size (256/512/768 kB) and minor feature enablement - allowing drop-in replacement within the same footprint and PCB layout. It is not pin-compatible with the LPC291x series due to reduced MSCSS/timer pinout.