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NXP Semiconductors LPC1778FBD208K
- Part No.:
- LPC1778FBD208K
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 208-LQFP
- Datasheet:
-
LPC1778FBD208K.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 208LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:181
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Product details
Overview
LPC1778FBD208K from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller designed for industrial control and connectivity applications requiring integrated Ethernet, dual CAN, USB Device/Host/OTG, and high I/O count. It operates at up to 120 MHz, integrates 512 kB flash, 96 kB SRAM (64 kB main + 2×16 kB peripheral), 4032-byte EEPROM, an 8-channel 12-bit ADC, and a 10-bit DAC - all in a 208-pin LQFP package.
For engineers reviewing the LPC1778FBD208K datasheet, LPC1778FBD208K pinout, LPC1778FBD208K application, or LPC1778FBD208K equivalent, key selection considerations include its Ethernet MAC with MII/RMII support, dual CAN 2.0B controllers, five UARTs (including IrDA- and smart card–capable USART4), and LCD controller omission - distinguishing it from LPC1788 variants.
Technical Context
The LPC1778FBD208K implements a Harvard-architecture ARM Cortex-M3 core with 3-stage pipeline, Memory Protection Unit (MPU) supporting eight regions, and Nested Vectored Interrupt Controller (NVIC). Its multilayer AHB matrix enables concurrent access by CPU, Ethernet, USB, and GPDMA without arbitration delay unless accessing the same slave.
Peripheral subsystems include a General Purpose DMA controller supporting SSP, I2S, UART, ADC, DAC, and timer match signals; dedicated RTC power domain with 20-byte battery-backed registers; and a CRC engine usable with DMA for zero-CPU-overhead checksum generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 120 MHz max - delivers deterministic real-time performance with hardware divide, single-cycle MAC, and bit-banding for atomic GPIO access. |
| Memory | 512 kB flash + 96 kB SRAM (64 kB main + 2×16 kB peripheral) + 4032 B EEPROM - enables large firmware images, DMA-buffered peripherals, and nonvolatile configuration storage without external memory. |
| Connectivity | Ethernet MAC (MII/RMII), dual CAN 2.0B, USB 2.0 full-speed Device/Host/OTG, five UARTs, three SSP, three I²C, I²S - supports industrial networking, motor control feedback, and multi-protocol bridging. |
| Analog | 8-channel 12-bit ADC (400 kHz max sample rate) + 10-bit DAC - suitable for closed-loop analog sensing and actuator control with GPDMA offload. |
| Timers & PWM | Four general-purpose timers (8 capture, 10 compare), two standard PWM blocks (6 outputs total), one motor-control PWM - enables precise motion control, encoder interfacing, and multi-phase timing. |
| GPIO | 165 pins with 5 V tolerance, configurable pull-up/down, open-drain, repeater mode, and Cortex-M3 bit-banding - allows direct interface to legacy logic, sensors, and industrial I/O without level shifters. |
| Power | Single 3.3 V supply (2.4–3.6 V), −40 °C to +85 °C operation, four low-power modes (Sleep to Deep power-down) - meets industrial temperature and energy-efficiency requirements. |
Pinout & Package
LPC1778FBD208K uses a plastic low-profile quad flat package (LQFP208) with 208 leads, body size 28 × 28 × 1.4 mm (SOT459-1). All I/O pins are 5 V tolerant except crystal, power, reference, and ADC-input-configured pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]–P0[31] | Port 0 bidirectional I/O | 32-bit GPIO bank with individual direction control; supports UART0/3, CAN1, I²C1, I²S, timer capture/match, and LCD data (not used on LPC1778). |
| P1[0]–P1[32] | Port 1 bidirectional I/O | 33-bit GPIO bank; includes Ethernet MII/RMII signals, USB D+/D−, SSP0/1, CAN2, ADC0_IN[0–7], DAC_OUT, SD/MMC, and RTC event inputs. |
| P2[0]–P2[32] | Port 2 bidirectional I/O | 33-bit GPIO bank; supports UART1/2/4, I²C0/2, SSP2, PWM outputs, motor control PWM, QEI, and external interrupt sources. |
| P3[0]–P3[32] | Port 3 bidirectional I/O | 33-bit GPIO bank; includes EMC bus signals (32-bit width enabled), additional UART/SSP/I²C, and general-purpose functions. |
| VDD/VSS | Power supply pins | Multiple dedicated 3.3 V and ground pins distributed across package edges - ensures stable core/peripheral voltage delivery and low-noise analog operation. |
| XTAL1/XTAL2 | Clock oscillator inputs | Crystal oscillator terminals for 1–25 MHz external crystal; internal 12 MHz RC oscillator (1% accuracy) available as fallback clock source. |
Key Features
| Feature | Design Value |
|---|---|
| ARM Cortex-M3 with MPU | Eight-region memory protection enables secure partitioning of firmware, bootloader, and application code - critical for industrial safety-critical updates. |
| Multi-layer AHB matrix | Eliminates bus contention between CPU, Ethernet, USB, and GPDMA - guarantees deterministic latency for time-sensitive network and motor control tasks. |
| Dedicated RTC power domain | 20-byte battery-backed registers retain system state during main power loss; RTC continues operating down to 2.1 V battery voltage - enables reliable timestamping and wake-on-event. |
| GPDMA controller | Supports memory-to-memory, peripheral-to-memory, and peripheral-to-peripheral transfers across UART, ADC, DAC, SSP, I²S, and timer match signals - reduces CPU load by >70% in data-intensive protocols. |
| Pin function multiplexing | Up to eight alternate functions per pin via IOCON register - allows flexible board layout and reuse of I/O for debug, test, or field upgrade interfaces without hardware change. |
Applications
| Industrial Automation Controller | Networked Motor Drive |
|---|---|
|
Use Scenario: PLC-style programmable controller managing I/O, motion profiles, and HMI communication in factory machinery. IC Role / Device Role / Timing Role: Central MCU executing real-time control loops, coordinating CAN-based servo drives, and serving web pages via integrated Ethernet MAC. Use Value: 165 GPIOs enable direct connection to sensors/actuators; dual CAN and five UARTs support legacy fieldbus integration; 120 MHz CPU handles complex ladder logic and motion math. |
Use Scenario: Brushless DC motor drive with position feedback, current sensing, and remote diagnostics over Ethernet. IC Role / Device Role / Timing Role: Real-time motor control unit running FOC algorithms, sampling ADC at 400 kHz, generating PWM with <100 ns jitter, and reporting status via TCP/IP. Use Value: Motor-control PWM block supports three-phase commutation; GPDMA offloads ADC→RAM transfers; RTC event recorder timestamps fault conditions with microsecond resolution. |
| Multi-Protocol Industrial Gateway | Medical Imaging Subsystem |
|
Use Scenario: Protocol translator bridging Modbus RTU (RS-485), CANopen, and EtherNet/IP in building automation systems. IC Role / Device Role / Timing Role: Connectivity hub performing packet conversion, buffering, and security enforcement between heterogeneous networks. Use Value: Five UARTs with RS-485 support, dual CAN controllers, and Ethernet MAC eliminate need for external protocol ICs; 512 kB flash stores multiple protocol stacks and firmware updates. |
Use Scenario: Embedded subsystem in ultrasound or patient monitor handling sensor signal acquisition, display output, and alarm generation. IC Role / Device Role / Timing Role: Data acquisition and UI controller interfacing with analog front-end, TFT display (via external controller), and audio alert circuitry. Use Value: 12-bit ADC captures transducer signals at medical-grade SNR; 10-bit DAC generates precise calibration references; USB OTG enables service-mode firmware updates and data export. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1788FBD208 | Includes LCD controller and 32-bit EMC bus; otherwise identical core, memory, and peripheral set. | Required for embedded TFT/STN display integration; unnecessary if display is handled externally. | Select LPC1778FBD208K when LCD functionality is unused - saves cost and simplifies layout by omitting unused LCD signal routing. |
| LPC1777FBD208 | Same package and pinout; omits Ethernet MAC while retaining dual CAN, USB, and all other peripherals. | Suitable for CAN-centric automotive or industrial networks where Ethernet is not required. | Choose LPC1778FBD208K when Ethernet connectivity is mandatory for remote monitoring, firmware OTA, or industrial Ethernet protocols. |
Compared with LPC1788FBD208, LPC1778FBD208K removes LCD support but retains full Ethernet capability; compared with LPC1777FBD208, it adds Ethernet MAC at no pinout or software compatibility cost - making it the optimal choice for connected industrial edge nodes requiring wired network access without display hardware.
Availability
LPC1778FBD208K is available at Aetrix Electronics and suitable for industrial automation controllers, networked motor drives, multi-protocol gateways, and medical imaging subsystems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for LPC1778FBD208K 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 LPC1778FBD208K belongs to the LPC17xx family - engineered for high-integration industrial control, emphasizing real-time determinism, multi-protocol connectivity, and robust operation across extended temperature ranges.
FAQ
What is the maximum operating frequency of the LPC1778FBD208K?
The LPC1778FBD208K operates at a maximum CPU frequency of 120 MHz, achieved using an on-chip PLL that can be driven by either the external crystal oscillator (1–25 MHz) or the internal 12 MHz RC oscillator. This frequency is sustained across the full industrial temperature range (−40 °C to +85 °C) under 3.3 V supply.
Does the LPC1778FBD208K include an Ethernet MAC?
Yes, the LPC1778FBD208K integrates a full Ethernet MAC with MII and RMII interface support, along with an associated DMA controller. Unlike the LPC1777 variant, the LPC1778FBD208K retains this feature - enabling standalone Ethernet connectivity without external PHY or controller ICs.
How many UARTs does the LPC1778FBD208K support, and what advanced features do they offer?
The LPC1778FBD208K supports five UARTs. UART1 includes full modem control (RTS/CTS/DSR/DTR/RI/DCD), UART3 supports RS-485/EIA-485, and USART4 provides IrDA, synchronous mode, and ISO7816-3 smart card compliance - enabling diverse serial communication in industrial and medical systems.
Is the LPC1778FBD208K pin-compatible with earlier NXP microcontrollers?
Yes, the LPC1778FBD208K is pin-function compatible with the LPC23xx and LPC24xx families in the LQFP208 package. This allows migration paths for legacy designs, though software requires ARM Cortex-M3 adaptation due to architectural differences from ARM7TDMI cores.
What analog peripherals are integrated into the LPC1778FBD208K?
The LPC1778FBD208K integrates an 8-channel 12-bit ADC with up to 400 kHz conversion rate and a 10-bit DAC with dedicated conversion timer. Both support GPDMA transfer, enabling high-throughput sensor acquisition and precision analog output generation without CPU intervention.
LPC1778FBD208K 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:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 96K 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:
LPC1778FBD208K FAQ
1.How can I place an order for LPC1778FBD208K through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1778FBD208K 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 LPC1778FBD208K reliable?
The price and inventory of LPC1778FBD208K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1778FBD208K is usually 5 days.
3.What payment methods are accepted for LPC1778FBD208K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1778FBD208K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1778FBD208K?
LPC1778FBD208K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1778FBD208K 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 LPC1778FBD208K?
For technical support, including LPC1778FBD208K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1778FBD208K requirements.
6.How does Aetrix verify that LPC1778FBD208K is sourced from the original manufacturer or authorized distributors?
All LPC1778FBD208K 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 LPC1778FBD208K meets industry standards.
7.What is the process for return or replacement of LPC1778FBD208K?
All LPC1778FBD208K units undergo pre-shipment inspection (PSI). If there is an issue with LPC1778FBD208K, 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 LPC1778FBD208K part is unused and in its original packaging.
Return procedure for LPC1778FBD208K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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