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NXP Semiconductors LPC1776FBD208K
- Part No.:
- LPC1776FBD208K
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 208-LQFP
- Datasheet:
-
LPC1776FBD208K.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 208LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,438
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Product details
Overview
LPC1776FBD208K from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller designed for embedded control applications requiring high integration, deterministic real-time response, and low-power operation. It operates at up to 120 MHz, integrates 256 kB flash, 80 kB SRAM (64 kB main + 16 kB peripheral), 4032-byte EEPROM, dual CAN, USB Device/Host/OTG, five UARTs, and an 8-channel 12-bit ADC - deployed in industrial motor drives and networked HVAC controllers.
For engineers reviewing the LPC1776FBD208K datasheet, LPC1776FBD208K pinout, LPC1776FBD208K application, or LPC1776FBD208K equivalent, key selection criteria include Ethernet absence, LCD controller exclusion, 32-bit EMC bus width, 165 GPIOs with Cortex-M3 bit-banding, and LQFP208 package compatibility with LPC23xx/LPC24xx pinouts.
Technical Context
The LPC1776FBD208K implements a Harvard-architecture ARM Cortex-M3 core with 3-stage pipeline, integrated Memory Protection Unit (MPU) supporting eight regions, and Nested Vectored Interrupt Controller (NVIC). Its multilayer AHB matrix enables concurrent access by CPU, USB, and GPDMA without arbitration delay unless accessing the same slave.
System-level features include a dedicated USB PLL separate from the main CPU PLL, RTC with 20-byte battery-backed registers and event recorder in RTC power domain, and a General Purpose DMA controller supporting transfers across UART, SSP, I2C, ADC, DAC, timers, and memory-to-memory operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 running at up to 120 MHz with MPU and NVIC - enables deterministic real-time task scheduling and memory partitioning for safety-critical firmware. |
| Memory | 256 kB flash (ISP/IAP-capable), 64 kB main SRAM + 16 kB peripheral SRAM, 4032-byte EEPROM - supports field-upgradable firmware and fast peripheral buffer allocation. |
| Analog Peripherals | 8-channel 12-bit ADC (400 kHz max sample rate), 10-bit DAC with dedicated timer - suitable for closed-loop analog sensing and actuator control without external converters. |
| Communication | Dual CAN 2.0B controllers, five UARTs (one with IrDA/smart card mode), three SSP, three I2C (one Fast-mode Plus), I2S, USB 2.0 full-speed Device/Host/OTG - enables multi-protocol industrial connectivity. |
| Timers & PWM | Four general-purpose timers (eight capture, ten compare), two standard PWM blocks (six outputs total), one motor-control PWM - supports precise timing, pulse generation, and three-phase motor commutation. |
| Package & I/O | LQFP208 package with 165 5 V-tolerant GPIOs, pin-compatible with LPC23xx/LPC24xx - simplifies migration from legacy ARM7 designs and eases PCB layout reuse. |
Pinout & Package
LQFP208 package: plastic low-profile quad flat package, 208 leads, body size 28 × 28 × 1.4 mm, lead pitch 0.5 mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0] | CAN1 receiver / UART0/3 TX/RX / I2C1 SDA | Multi-function I/O supporting CAN bus termination, serial debug, and I2C sensor interface on single pin - reduces external component count. |
| P0[1] | CAN1 transmitter / UART0/3 RX/TX / I2C1 SCL | Paired with P0[0] for full CAN transceiver interface; also provides UART loopback capability and I2C clock - enables dual-role board design. |
| P0[12] | USB port 2 power enable / SSP1 MISO / ADC0_IN[6] | Configurable as USB VBUS control, SPI slave data input, or analog input - allows dynamic reassignment based on runtime mode. |
| P0[22] | UART1 RTS / SD_DAT[0] / CAN1 TX | Shared signal path for RS-485 flow control, SD card data line, and CAN transmit - supports mixed-interface peripheral expansion. |
| P0[26] | ADC0_IN[3] / DAC_OUT | Direct analog I/O pin supporting simultaneous ADC sampling and DAC output - enables feedback-based analog signal conditioning without multiplexing delay. |
Key Features
| Feature | Design Value |
|---|---|
| Flash Accelerator + Local Code Bus | Enables zero-wait-state execution at 120 MHz from on-chip flash - eliminates need for external SRAM for code storage in cost-sensitive designs. |
| RTC with Event Recorder | Records timestamped events (e.g., fault triggers, user inputs) using battery-backed registers - maintains audit trail during main power loss. |
| GPDMA Controller | Supports memory-to-peripheral, peripheral-to-peripheral, and memory-to-memory transfers across UART, SSP, I2C, ADC, DAC, and timers - offloads CPU from data movement overhead. |
| GPIO Bit-Banding | Allows atomic read-modify-write of individual GPIO bits via dedicated memory-mapped alias region - prevents race conditions in interrupt-driven I/O handling. |
| Windowed Watchdog Timer (WWDT) | Requires service within configurable time window - prevents runaway code while rejecting spurious resets caused by transient noise. |
Applications
| Industrial Motor Drive | Networked HVAC Controller |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in factory automation systems with real-time torque regulation and thermal monitoring. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing CAN-based sensor feedback, and generating PWM waveforms via motor-control PWM block. Use Value: Integrated motor PWM with dead-time insertion and six complementary outputs eliminates external gate drivers; 12-bit ADC enables precise current sensing at 400 kHz. | Use Scenario: Centralized building management unit coordinating chillers, VAV boxes, and CO₂ sensors across Ethernet/IP or BACnet MS/TP networks. IC Role / Device Role / Timing Role: Protocol gateway and local decision engine - runs Modbus TCP stack over Ethernet MAC, handles RS-485 fieldbus via UART with hardware flow control. Use Value: Dual CAN and five UARTs support multi-network bridging; 165 GPIOs interface with digital actuators, analog temperature/humidity sensors, and relay banks. |
| Medical Imaging Subsystem | Aftermarket Automotive Telematics |
Use Scenario: Signal acquisition and preprocessing module in portable ultrasound devices capturing echo data from piezoelectric transducers. IC Role / Device Role / Timing Role: High-speed data acquisition controller - synchronizes 12-bit ADC sampling with DAC-triggered excitation pulses and buffers raw data via GPDMA to SRAM. Use Value: Dedicated DAC with conversion timer ensures precise pulse timing; GPDMA relieves CPU from 400 kHz ADC data transfer - preserves cycles for FFT processing. | Use Scenario: GPS/fleet monitoring unit installed in commercial vehicles, logging location, engine diagnostics (via OBD-II CAN), and driver behavior metrics. IC Role / Device Role / Timing Role: Embedded telematics processor - manages dual CAN channels (OBD-II + internal vehicle bus), USB host for cellular modem, and RTC-based event logging. Use Value: RTC with 20-byte backup registers stores trip start/end timestamps and fault codes during ignition-off periods; 5 V-tolerant GPIOs interface directly with automotive 12 V sensor signals via level-shifting resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1778FBD208 | 512 kB flash, 96 kB SRAM (64 + 16×2), includes LCD controller - no functional difference in CAN/USB/Ethernet subset. | Required where larger firmware image or TFT display interface is needed; not pin-compatible due to LCD signal routing conflicts. | Select LPC1778FBD208 only if display support or >256 kB code space is mandatory - otherwise LPC1776FBD208K offers identical peripheral set at lower cost. |
| LPC1786FBD208 | Same flash/SRAM configuration as LPC1776FBD208K but adds Ethernet MAC - shares identical CPU, timers, ADC, DAC, and communication peripherals. | Suitable for networked industrial gateways requiring TCP/IP stack; requires additional magnetics and PHY circuitry. | Choose LPC1786FBD208 when Ethernet connectivity is essential; LPC1776FBD208K remains optimal for CAN/USB-only edge nodes with tighter BOM constraints. |
Compared with LPC1778FBD208 and LPC1786FBD208, the LPC1776FBD208K delivers identical real-time control capability, analog interface performance, and multi-protocol serial connectivity at minimal footprint and cost - making it the preferred choice for non-LCD, non-Ethernet embedded applications demanding proven ARM Cortex-M3 reliability.
Availability
LPC1776FBD208K is available at Aetrix Electronics and suitable for industrial motor drives, networked HVAC controllers, medical imaging subsystems, and aftermarket automotive telematics requiring stable component supply and long-term production continuity.
Supply support for LPC1776FBD208K 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in ARM-based microcontrollers and edge processing.
The LPC177x series targets cost-optimized, high-integration embedded control - delivering ARM Cortex-M3 performance with industrial-grade peripherals (dual CAN, USB OTG, 12-bit ADC) in pin-compatible LQFP packages for seamless legacy migration.
FAQ
Does the LPC1776FBD208K support Ethernet connectivity?
No, the LPC1776FBD208K does not include an Ethernet MAC. Unlike the LPC178x variants, this part omits the Ethernet peripheral while retaining dual CAN, USB Device/Host/OTG, five UARTs, and the full suite of timers, ADC, and DAC. Engineers selecting LPC1776FBD208K should plan for alternative network interfaces such as CAN FD or external Ethernet controllers interfaced via SPI or parallel bus.
What is the maximum operating frequency of the LPC1776FBD208K?
The LPC1776FBD208K operates at up to 120 MHz CPU frequency, enabled by its ARM Cortex-M3 core and on-chip flash accelerator. This frequency is sustained using either the internal 12 MHz RC oscillator (trimmed to ±1%) or an external crystal (1–25 MHz) fed through the on-chip PLL. The device maintains full peripheral functionality-including USB and CAN-at this maximum clock rate.
Is the LPC1776FBD208K pin-compatible with earlier NXP microcontrollers?
Yes, the LPC1776FBD208K features pin function compatibility with the LPC23xx and LPC24xx families in its LQFP208 package. This allows direct PCB layout reuse for many signal functions, though engineers must verify specific peripheral mappings (e.g., USB, CAN, ADC pins) against the LPC1776FBD208K pin description table, as some alternate functions differ from legacy parts.
Does the LPC1776FBD208K include an LCD controller?
No, the LPC1776FBD208K excludes the LCD controller present in LPC178x parts. It retains all other major peripherals including dual CAN, USB Device/Host/OTG, five UARTs, three SSP, three I2C, I2S, SD/MMC, 12-bit ADC, and 10-bit DAC. This omission reduces die size and cost while maintaining suitability for non-display applications like motor control and protocol bridging.
What power supply requirements does the LPC1776FBD208K have?
The LPC1776FBD208K operates from a single 3.3 V supply with a valid range of 2.4 V to 3.6 V. It supports four reduced-power modes - Sleep, Deep-sleep, Power-down, and Deep power-down - with wake-up capability via external interrupts, RTC alarm, or PORT0/2 pin events. Brownout detection provides separate interrupt and reset thresholds for robust operation under voltage sag conditions.
LPC1776FBD208K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 208-LQFP
- Series:
- LPC17xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, Microwire, Memory Card, SPI, SSI, SSP, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, Motor Control PWM, POR, PWM, WDT
- Number of I/O:
- 165
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 80K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 3.6V
- Data Converters:
- A/D 8x12b; D/A 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC1776FBD208K FAQ
1.How can I place an order for LPC1776FBD208K through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1776FBD208K on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LPC1776FBD208K reliable?
The price and inventory of LPC1776FBD208K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1776FBD208K is usually 5 days.
3.What payment methods are accepted for LPC1776FBD208K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1776FBD208K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1776FBD208K?
LPC1776FBD208K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1776FBD208K order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LPC1776FBD208K?
For technical support, including LPC1776FBD208K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1776FBD208K requirements.
6.How does Aetrix verify that LPC1776FBD208K is sourced from the original manufacturer or authorized distributors?
All LPC1776FBD208K products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LPC1776FBD208K meets industry standards.
7.What is the process for return or replacement of LPC1776FBD208K?
All LPC1776FBD208K units undergo pre-shipment inspection (PSI). If there is an issue with LPC1776FBD208K, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LPC1776FBD208K part is unused and in its original packaging.
Return procedure for LPC1776FBD208K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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