NXP Semiconductors LPC2929FBD144,551

Overview

LPC2929FBD144 from NXP Semiconductors is an ARM968E-S-based microcontroller operating up to 125 MHz, featuring 768 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 motor control and automotive body electronics.

For engineers reviewing the LPC2929FBD144 datasheet, LPC2929FBD144 pinout, LPC2929FBD144 application, or LPC2929FBD144 equivalent, key selection criteria include its dual-CAN/LIN/USB integration, 125 MHz ARM968E-S core with TCM architecture, 32-bit external memory interface, 5 V-tolerant analog inputs, and power management features enabling low-power embedded systems design.

Technical Context

The LPC2929FBD144 implements a multi-layer AHB bus at 125 MHz with four independent layers, supporting concurrent access to TCM, SRAM, flash, and peripherals. Its dual Clock Generation Units (CGU0/CGU1) provide independent clock scaling for CPU, USB, and peripheral domains, including fractional dividers and PLL-based frequency synthesis.

It integrates a dual-master GPDMA controller capable of memory-to-memory transfers and peripheral DMA (including TCM), alongside a configurable External Static Memory Controller (SMC) supporting eight banks, 32-bit data width, and 24-bit addressing - enabling direct connection to NOR/NAND flash, SRAM, and FPGA interfaces.

Key Specifications

Pinout & Package

144-pin LQFP (SOT486-1), 20 × 20 × 1.4 mm body, 0.5 mm pitch. Pin functions are multiplexed via SFSP registers in SCU; five GPIO ports (P0–P3, P5) provide 104 configurable I/Os with programmable pull-up/pull-down/bus keeper and 5 V tolerance on analog/digital pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC2929FBD144, LPC2927FBD144 offers identical performance and peripherals but less flash for cost-sensitive deployments, while LPC2930FBD144 trades LIN capability for Ethernet - making LPC2929FBD144 optimal for mixed-protocol automotive and industrial gateways requiring maximum non-volatile storage and dual-LIN support.

Availability

LPC2929FBD144 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and smart energy metering requiring stable component supply across long-lifecycle production programs.

Supply support for LPC2929FBD144 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The LPC2900 series was designed specifically for automotive and industrial applications demanding robust mixed-signal integration, real-time communication (CAN/LIN/USB), and deterministic ARM9 performance in extended temperature environments.

FAQ

What is the maximum operating frequency of the LPC2929FBD144?

The LPC2929FBD144 operates at a maximum CPU frequency of 125 MHz, achieved via its on-chip PLL with input range 10–25 MHz. This frequency applies to the ARM968E-S core and associated AHB bus; peripheral clocks (e.g., USB, CAN) are derived independently through CGU0/CGU1 fractional dividers to maintain timing compliance.

Does the LPC2929FBD144 support USB device and host functionality?

The LPC2929FBD144 integrates a full-speed USB 2.0 OTG controller with on-chip PHY, supporting device, host, and OTG roles. It includes a dedicated USB DMA controller and supports standard USB classes (CDC, HID, MSC) - however, host-mode operation requires external VBUS detection and power switching circuitry per USB specification.

How many analog input channels does the LPC2929FBD144 support?

The LPC2929FBD144 provides 24 analog input channels across three independent 10-bit ADCs: ADC0 (8 channels, 5 V range), ADC1 (8 channels, 3.3 V range), and ADC2 (8 channels, 3.3 V range). Each ADC supports hardware compare functions and multiple trigger sources (timer, PWM, external signal) to minimize CPU interrupt load.

Is the LPC2929FBD144 pin-compatible with other LPC29xx variants?

The LPC2929FBD144 shares the same LQFP144 package and pin assignment with LPC2926FBD144 and LPC2927FBD144 - all are fully pin-compatible. However, it is not pin-compatible with LPC291x series due to reduced MSCSS/timer pinout and differing peripheral mappings, requiring PCB redesign for migration.

What power supply rails are required for the LPC2929FBD144?

The LPC2929FBD144 requires three primary supply rails: 1.8 V ±5 % for the digital core (VDD(CORE)), 2.7–3.6 V for I/O (VDD(IO)), and dedicated analog supplies - 3.3 V (VDDA(ADC3V3)) and 5 V (VDDA(ADC5V0)) for ADC references. Separate decoupling capacitors per rail and proper ground partitioning are mandatory for stable operation.