NXP Semiconductors LPC2132FHN64/01,55

Overview

LPC2132FHN64/01 from NXP Semiconductors is a 16/32-bit ARM7TDMI-S microcontroller in HVQFN64 package, featuring 64 kB flash, 16 kB SRAM, one 10-bit 8-channel ADC, one 10-bit DAC (AOUT), and 47 GPIO pins with nine external interrupt inputs - deployed in industrial control systems requiring real-time analog I/O and compact footprint.

For engineers reviewing the LPC2132FHN64/01 datasheet, LPC2132FHN64/01 pinout, LPC2132FHN64/01 application, or LPC2132FHN64/01 equivalent, key selection factors include its 60 MHz CPU clock, fast GPIO capability (3.5× toggling speed vs. legacy LPC213x), fractional baud rate UARTs, and dual 32-bit timers with capture/compare/PWM functionality for deterministic timing-critical firmware.

Technical Context

The LPC2132FHN64/01 implements an ARM7TDMI-S core with Thumb instruction set support, enabling 32-bit performance at reduced code size (up to 30% smaller than ARM mode). Its 128-bit wide memory interface and accelerator architecture sustain full 60 MHz operation without wait states.

It integrates dedicated ADC result registers to minimize interrupt latency, hardware handshake flow control in UART0/1, and enhanced Brown-Out Detection (BOD) control for fine-grained power optimization - all within a thermally enhanced HVQFN64 (9 × 9 × 0.85 mm) package rated for −40 °C to +85 °C operation.

Key Specifications

Pinout & Package

HVQFN64 (SOT804-2) package: plastic thermal enhanced very thin quad flat package, no leads, 64 terminals, body 9 × 9 × 0.85 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC2132FHN64/01, the LQFP variant offers easier hand-soldering but higher profile, while the LPC2134 adds ADC headroom at the cost of increased flash density - neither provides pin-to-pin compatibility due to differing pin assignments for ADC1 and UART1 control signals.

Availability

LPC2132FHN64/01 is available at Aetrix Electronics and suitable for industrial control, medical instrumentation, and access control systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for LPC2132FHN64/01 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 LPC213x family was designed as a low-power, high-integration ARM7-based MCU platform targeting space-constrained embedded applications requiring mixed-signal capability, real-time responsiveness, and robust debug infrastructure.

FAQ

What is the maximum operating frequency of the LPC2132FHN64/01?

The LPC2132FHN64/01 supports a maximum CPU clock frequency of 60 MHz, achieved via its programmable on-chip PLL with 100 µs settling time. This enables deterministic real-time execution for time-critical firmware tasks such as motor control loops or sensor sampling at sub-100 µs intervals - all while maintaining full compatibility with ARM7TDMI-S instruction timing.

Does the LPC2132FHN64/01 include a DAC, and how is it accessed?

Yes, the LPC2132FHN64/01 includes a single 10-bit DAC accessible via pin P0.25 (labeled AOUT in the datasheet). When configured as DAC output, the digital I/O function of that pin is automatically disabled. The DAC operates from the same VDDA/VREF supply as the ADC, ensuring matched analog reference stability for closed-loop applications.

How many external interrupt pins does the LPC2132FHN64/01 support?

The LPC2132FHN64/01 supports up to nine external interrupt inputs: EINT0 through EINT3 (on P0.0, P0.1, P0.7, and P0.20), plus five additional edge- or level-sensitive interrupt-capable GPIOs on Port 1 (P1.25/EXTIN0 and four trace-related pins configurable as EINT via PINSEL registers). All are 5 V tolerant with built-in glitch filtering.

What debug interfaces are available on the LPC2132FHN64/01?

The LPC2132FHN64/01 features JTAG (TRST, TDI, TDO, TCK, TMS) and EmbeddedICE RT interfaces for real-time debugging, plus an Embedded Trace Module with TRACEPKT0–3 and TRACESYNC pins for high-speed instruction trace. These allow full visibility into program flow, register state, and memory access without halting execution - critical for validating timing-critical firmware on the LPC2132FHN64/01.

Is the LPC2132FHN64/01 pin-compatible with other LPC213x/01 variants?

No - the LPC2132FHN64/01 uses the HVQFN64 package (SOT804-2), which has different pin mapping than the LQFP64 variants (e.g., LPC2132FBD64/01, SOT314-2). While electrical specifications and peripheral sets match, mechanical layout and signal routing must be redesigned. Pin functions like AOUT (P0.25) and trace signals (P1.16–P1.19) occupy distinct locations between packages.