NXP Semiconductors LPC4074FBD144,551

Overview

LPC4074FBD144 from NXP Semiconductors is a 32-bit ARM Cortex-M4 microcontroller designed for cost-sensitive industrial and appliance control applications requiring integrated peripherals, low power operation, and deterministic real-time response. It operates at up to 120 MHz, integrates 128 kB flash, 40 kB SRAM, and 2048 B EEPROM, and supports USB Device-only, four UARTs, two analog comparators, and no Ethernet or LCD controller.

For engineers reviewing the LPC4074FBD144 datasheet, LPC4074FBD144 pinout, LPC4074FBD144 application, or LPC4074FBD144 equivalent, key selection considerations include its LQFP144 package with 144 pins, absence of FPU and Ethernet, USB Device-only capability (not Host/OTG), and omission of QEI, SD/MMC, and motor control PWM - distinguishing it from higher-tier LPC408x/7x variants.

Technical Context

The LPC4074FBD144 implements the ARM Cortex-M4 core with Harvard architecture, 3-stage pipeline, hardware integer DSP instructions, and optional NVIC/MPU - but excludes the floating-point unit per Table 2. Its memory subsystem includes 128 kB on-chip flash with ISP/IAP support, 40 kB SRAM (64 kB not available), and 2048 B EEPROM, all accessed via multilayer AHB matrix interconnect.

Peripheral integration is scaled to match its tier: USB 2.0 full-speed Device controller (no Host/OTG PHY), four UARTs (vs. five in LPC4078/88), no Ethernet MAC or LCD controller, no QEI or SD/MMC interface, and only two analog comparators - consistent with its positioning as an entry-level member of the LPC408x/7x family.

Key Specifications

Pinout & Package

LPC4074FBD144 uses a plastic low-profile quad flat package (LQFP144) with 144 leads, body size 20 × 20 × 1.4 mm (SOT486-1). All I/O pins are 5V tolerant except crystal, power, and reference voltage pins; ADC inputs lose 5V tolerance when enabled.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC4074FBD144, LPC4076FBD144 provides scalable memory headroom within identical package and peripheral constraints, while LPC1769FBD144 trades Cortex-M4 advantages for mature M3 ecosystem support and expanded USB/Ethernet capability - neither offers pin-to-pin compatibility.

Availability

LPC4074FBD144 is available at Aetrix Electronics and suitable for industrial motor control, smart appliance HMI, point-of-sale peripherals, and security sensor hubs requiring stable component supply and long-term production support.

Supply support for LPC4074FBD144 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 LPC408x/7x product line was designed for high-integration embedded control applications demanding real-time performance, low power, and rich peripheral sets - with LPC4074FBD144 targeting cost-optimized implementations where Ethernet, LCD, and advanced PWM are unnecessary.

FAQ

Does LPC4074FBD144 include a hardware floating-point unit (FPU)?

No, LPC4074FBD144 does not integrate a hardware FPU. As confirmed in Table 2 of the datasheet, the FPU column is marked "no" for this variant. Floating-point operations must be performed in software using the ARM Cortex-M4's integer arithmetic unit, which impacts computational throughput for math-intensive tasks like filtering or sensor fusion.

What USB capabilities does LPC4074FBD144 support?

LPC4074FBD144 supports USB 2.0 full-speed Device mode only, with an integrated PHY. It does not support USB Host or OTG functionality - unlike LPC4078/88 variants. This makes it suitable for peripheral-class devices such as HID interfaces, CDC modems, or MSC storage devices, but not for host-side enumeration or dual-role applications.

Is LPC4074FBD144 pin-compatible with other LPC408x/7x family members in LQFP144 package?

Yes, LPC4074FBD144 shares the same LQFP144 pinout and function mapping as other LPC408x/7x devices in that package, including LPC4076FBD144 and LPC4078FBD144. However, unused peripherals (e.g., Ethernet, LCD, CAN) have no associated pins enabled - meaning PCBs designed for higher-tier variants will operate correctly with LPC4074FBD144, though unused signals remain unconnected.

What is the maximum operating frequency and power supply range for LPC4074FBD144?

LPC4074FBD144 operates at up to 120 MHz and requires a single 3.3 V power supply, specified over 2.4 V to 3.6 V. It is rated for industrial temperature range (−40 °C to +85 °C). The internal 12 MHz IRC oscillator is trimmed to ±1 % accuracy and can serve as system clock source when external crystal is omitted.

Does LPC4074FBD144 support analog-to-digital conversion and digital-to-analog conversion?

LPC4074FBD144 includes an eight-channel 12-bit ADC with up to 400 kHz sampling rate and multiple result registers, but it does not integrate a DAC. The ADC supports DMA transfer and is accessible via P0[23]–P0[30] and P1[0]–P1[3]. No DAC block is present - unlike LPC4078/88 variants - limiting its use in closed-loop analog output applications.