NXP Semiconductors LPC2132FHN64,557

Overview

LPC2132FHN64,557 from NXP Semiconductors is a 16/32-bit ARM7TDMI-S microcontroller in HVQFN64 package with 64 kB flash, 16 kB SRAM, one 8-channel 10-bit ADC, one 10-bit DAC (AOUT), and 47 GPIO pins - deployed in industrial control systems requiring compact size, low power, and mixed-signal processing.

For engineers reviewing the LPC2132FHN64,557 datasheet, LPC2132FHN64,557 pinout, LPC2132FHN64,557 application, or LPC2132FHN64,557 equivalent, key selection criteria include its 60 MHz CPU clock, 5 V-tolerant I/Os, on-chip PLL with 100 µs settling time, dual UARTs with hardware flow control, and support for real-time debugging via EmbeddedICE RT and trace interfaces.

Technical Context

The LPC2132FHN64,557 implements the ARM7TDMI-S core with Thumb instruction set support, enabling 32-bit performance at reduced code size (up to 30 % smaller than ARM mode). Its memory subsystem features a 128-bit wide interface and accelerator architecture for full-speed 60 MHz execution from flash.

Peripherals include two 32-bit timers with capture/compare channels, PWM unit (6 outputs), RTC with independent 32 kHz clock input, two UARTs with fractional baud rate generators, two Fast I²C-bus interfaces (400 kbit/s), SPI/SSP, and vectored interrupt controller - all accessible via configurable pin multiplexing through the Pin Connect Block.

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 LPC2132FBD64/01, the LPC2132FHN64,557 offers superior thermal performance in space-constrained designs; compared with LPC2134FBD64/01, it delivers optimal cost/performance balance for single-ADC, 64 kB firmware applications without over-provisioning resources.

Availability

LPC2132FHN64,557 is available at Aetrix Electronics and suitable for industrial motor control, medical sensor interface, access control terminal, and protocol converter gateway applications requiring stable component supply and long-term lifecycle support.

Supply support for LPC2132FHN64,557 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 cost-optimized, low-power 32-bit microcontroller platform targeting space-constrained embedded systems requiring integrated analog peripherals, real-time responsiveness, and robust debug infrastructure.

FAQ

What is the maximum operating frequency of the LPC2132FHN64,557?

The LPC2132FHN64,557 supports a maximum CPU clock frequency of 60 MHz, achieved via its on-chip programmable PLL with 100 µs settling time. This allows deterministic real-time execution while maintaining low power consumption in active mode. The 128-bit wide memory interface and accelerator architecture ensure full-speed instruction fetch from flash at this rate. The LPC2132FHN64,557 does not require external clock sources beyond the 1–30 MHz crystal connected to XTAL1/XTAL2.

Does the LPC2132FHN64,557 include a DAC, and how is it implemented?

Yes, the LPC2132FHN64,557 integrates a single 10-bit voltage-output DAC (AOUT), implemented on pin P0.25. When enabled, the digital section of that pin is disabled to prevent noise coupling into the analog output path. The DAC supports monotonic operation and is referenced to the VREF pin, allowing precise analog waveform generation for calibration, sensor biasing, or audio output. It is not present in the LPC2131 variant.

How many analog inputs does the LPC2132FHN64,557 support, and what is their resolution?

The LPC2132FHN64,557 includes one 8-channel 10-bit successive approximation register (SAR) ADC (AD0.0–AD0.7), with conversion time as low as 2.44 µs per channel. All eight analog inputs are physically routed to dedicated pins (e.g., P0.25–P0.30, P0.4, P0.5, P0.26, P0.27), and each supports internal glitch filtering (rejecting pulses <3 ns). The ADC uses the VREF pin as its reference voltage, and its digital interface includes dedicated result registers to minimize interrupt latency.

What debug and trace capabilities does the LPC2132FHN64,557 provide?

The LPC2132FHN64,557 features EmbeddedICE RT logic and an Embedded Trace Module supporting real-time instruction trace via dedicated pins (P1.16–P1.20, P1.21–P1.24). It enables non-intrusive debugging using tools like Keil µVision or SEGGER J-Link, with cycle-accurate execution analysis without halting the CPU. The JTAG interface (TRST, TCK, TMS, TDI, TDO) supports boundary scan and flash programming. The LPC2132FHN64,557 also supports In-System Programming via UART0.

Is the LPC2132FHN64,557 pin-compatible with other members of the LPC213x family?

The LPC2132FHN64,557 shares identical pin functions and electrical characteristics with LPC2132FBD64/01 and LPC2132FHN64/01 variants - differing only in package type (HVQFN64 vs. LQFP64) and ordering suffix. However, it is not pin-compatible with LPC2134/36/38 due to additional ADC1 inputs (AD1.0–AD1.7) and UART1 control signals (RTS1, CTS1, DTR1, etc.) assigned to shared pins. Always verify pin mapping against the specific variant's datasheet before PCB layout.