NXP Semiconductors LPC11C22FBD48/301,

Overview

LPC11C22FBD48/301 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller with integrated high-speed CAN transceiver, 16 kB flash, 8 kB SRAM, and 36 GPIO pins - designed for industrial sensor networks and RS-485/EIA-485-based metering systems requiring embedded CAN connectivity without external transceiver components.

For engineers reviewing the LPC11C22FBD48/301 datasheet, LPC11C22FBD48/301 pinout, LPC11C22FBD48/301 application, or LPC11C22FBD48/301 equivalent, key selection criteria include on-chip C_CAN controller with integrated transceiver (CANH/CANL/STB/VDD_CAN), Fast-mode Plus I²C (1 Mbit/s), UART with RS-485 support, and deep power-down wake-up via dedicated GPIO pins.

Technical Context

The LPC11C22FBD48/301 implements an ARM Cortex-M0 core running at up to 50 MHz with NVIC, Serial Wire Debug, and system tick timer. Its clock system includes a 12 MHz ±1% internal RC oscillator, programmable PLL, and crystal oscillator support (1–25 MHz).

Peripheral integration centers on dual SPI (SSP-capable), one UART with fractional baud rate generation and RS-485 direction control, a 10-bit 8-channel ADC, four general-purpose timers (including 32-bit and 16-bit variants), and a C_CAN controller with on-chip transceiver enabling direct CAN bus connection via CANH, CANL, STB, VCC, and VDD_CAN pins.

Key Specifications

Pinout & Package

48-pin LQFP package (SOT313-2), body size 7 mm × 7 mm × 1.4 mm, with exposed pad not electrically connected. Pin functions include dedicated CANH/CANL/STB/VCC/VDD_CAN terminals, dual SPI interfaces (SPI0/SPI1), UART with RS-485 control (RTS/CTS/DTR/DSR/DCD/RI), and 36 GPIOs distributed across PIO0–PIO3 ports.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC11C24FBD48/301, the LPC11C22FBD48/301 trades flash capacity for lower unit cost while retaining identical CAN functionality and peripheral set; versus STM32F042F4P6, it delivers true single-chip CAN node integration with no external PHY, saving 3.2 mm² PCB area and eliminating signal integrity tuning effort.

Availability

LPC11C22FBD48/301 is available at Aetrix Electronics and suitable for industrial sensor networks, eMetering gateways, and elevator control systems requiring stable component supply and long-term manufacturability.

Supply support for LPC11C22FBD48/301 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in ARM-based microcontrollers and automotive-grade CAN technology.

The LPC11Cx2/Cx4 product line was engineered specifically for cost-sensitive industrial control and metering applications demanding integrated CAN PHY, low-power operation, and rapid time-to-market - prioritizing system-level integration over raw performance.

FAQ

What is the maximum operating frequency of the LPC11C22FBD48/301?

The LPC11C22FBD48/301 operates at a maximum CPU frequency of 50 MHz, achieved via its on-chip PLL driven by either the internal 12 MHz RC oscillator or an external crystal (1–25 MHz). This frequency is fully supported across all operating voltage ranges (1.8 V to 3.6 V) and ambient temperatures (−40 °C to +85 °C) specified in the datasheet.

Does the LPC11C22FBD48/301 require an external CAN transceiver?

No, the LPC11C22FBD48/301 includes a fully integrated high-speed CAN transceiver compliant with ISO 11898-2. It exposes CANH, CANL, STB, VCC, and VDD_CAN pins directly - no external transceiver IC is needed for basic CAN bus connection, reducing bill-of-materials and layout complexity.

How many GPIO pins does the LPC11C22FBD48/301 provide?

The LPC11C22FBD48/301 provides 36 general-purpose I/O pins distributed across PIO0, PIO1, PIO2, and PIO3 ports. These pins support configurable pull-up/pull-down resistors, hysteresis, and multiple alternate functions including UART, SPI, I²C, timers, and ADC inputs - all accessible in the 48-pin LQFP package.

Can the LPC11C22FBD48/301 perform in-system programming (ISP) over CAN?

Yes, the LPC11C22FBD48/301 supports Flash In-System Programming (ISP) via its integrated C_CAN controller. When PIO0_1 and PIO0_3 are held LOW during reset, the on-chip bootloader activates C_CAN-based ISP mode - enabling field firmware updates without UART or debug interface access.

What power-saving modes are available on the LPC11C22FBD48/301?

The LPC11C22FBD48/301 offers three reduced-power modes: Sleep (CPU halted, peripherals active), Deep-sleep (CPU and most clocks stopped, SRAM retained), and Deep power-down (full system shutdown, <1 µA typical current). Wake-up from Deep power-down is supported via 13 GPIO pins, including dedicated PIO1_4/WAKEUP with 20 ns glitch filtering.