LPC1769FBD100K - 120MHz Cortex-M3 MCU with Ethernet | NXP
Référence : LPC1769FBD100K ✓ ActifLPC1769FBD100K Présentation
An ARM Cortex-M3 microcontroller is a 32-bit reduced-instruction-set processor designed for embedded systems. The Cortex-M3 core belongs to the ARM processor hierarchy and is used in microcontrollers, or MCUs, that combine processor performance, flash memory, static RAM, and programmable peripherals in one device. The LPC1769 places this processing capability within NXP's LPC17xx microcontroller family, combining communications, data conversion, and motor-control functions on one integrated circuit.
The principal features include 120 MHz operation, 512 KB of program flash, 64 KB of data RAM, and an eight-channel 12-bit ADC. The device also provides a 10-bit DAC, eight-channel DMA controller, four UART interfaces, two CAN channels, three SSP or SPI interfaces, three I2C interfaces, and motor-control PWM. These resources reduce external peripheral count in Ethernet, industrial-control, data-acquisition, and USB-connected products.
The LPC1769 architecture supports connected embedded applications without requiring separate Ethernet or USB controllers. Its eight-channel DMA controller can transfer data between memory and peripherals while the CPU performs other tasks, which is useful for high-throughput communication systems. The integrated 12-bit ADC supports analog measurements, while the 10-bit DAC supports basic analog output. Its 2.4 V to 3.6 V operating supply range accommodates common 3.3 V embedded platforms.
Typical uses include industrial Ethernet controllers, USB data loggers, CAN-connected equipment, motor-control systems, audio interfaces, and compact embedded gateways. The Ethernet MAC and USB interfaces are especially useful for network-connected monitoring and control, while the CAN channels support industrial vehicle and machine communication. The 100-pin LQFP package also exposes enough I/O and peripheral connections for designs that require more integration than a small-package MCU provides.
PCB implementation should preserve clean separation between analog and digital return paths, place decoupling capacitors close to the supply pins, and route Ethernet and USB signals according to their impedance and isolation requirements. Firmware must also be validated against the selected board, crystal configuration, memory map, bootloader, and peripheral assignments; changing order codes does not eliminate the need for system-level review.
This product page combines manufacturer specifications, interface details, application guidance, package information, and engineering-focused replacement considerations. It also highlights where an LPC17xx family member can preserve the 100-pin footprint and where differences in memory or peripheral sets require explicit hardware and firmware validation.
Alternatives de remplacement direct pour LPC1769FBD100K — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec LPC1769FBD100K (même facteur de forme et même empreinte) — différant par Package, ADC, DAC, Maximum CPU Frequency, DMA Channels.
LPC1768FBD100K
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →LPC1767FBD100K
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →LPC1766FBD100K
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →LPC1765FBD100K
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →LPC1769FBD100
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LPC1769FBD100K Valeurs maximales et caractéristiques électriques
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Maximum CPU Frequency | 120 MHz |
| Program Memory | 512 KB flash (512K x 8) |
| Data Memory | 64 KB |
| Supply Voltage Range | 2.4 V to 3.6 V |
| Boîtier | 100-pin LQFP, 14 x 14 mm |
| Ethernet Interface | 1 Ethernet MAC |
| USB Interface | 1 device, host, and OTG controller |
| DMA Channels | 8 channels |
| UART Interfaces | 4 channels |
| CAN Interfaces | 2 channels |
| SSP or SPI Interfaces | 3 channels |
| I2C Interfaces | 3 channels |
| ADC | 8 channels, 12-bit resolution |
| DAC | 1 channel, 10-bit resolution |
| Température de fonctionnement | -40 °C to 85 °C |
| Type de montage | Surface mount |
| Statut RoHS | Unknown |
| REACH Status | Unknown |
| AEC-Q100 Qualification | Not applicable |
Guide de configuration des broches du LPC1769FBD100K 100-pin lqfp, 14 x 14 mm
Configuration des broches du LPC1769FBD100K (boîtier 100-pin lqfp, 14 x 14 mm). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour LPC1769FBD100K.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
LPC1769FBD100K convient pour 6 applications: Industrial Ethernet Controllers, USB Data Loggers, CAN-Connected Machine Control, Industrial Sensor Acquisition, Motor Control and Automation, Connected Audio and Interface Products.
Industrial Ethernet Controllers
The LPC1769FBD100K fits industrial Ethernet controllers because its 120 MHz ARM Cortex-M3 core and 512 KB flash support protocol processing, while the integrated Ethernet MAC reduces the controller's external component count. Its eight-channel DMA controller can move network and peripheral data efficiently, and the 100-pin LQFP provides access to Ethernet, UART, timer, and control signals. The implementation still requires a suitable Ethernet PHY, isolation or magnetic coupling where required, controlled clock routing, and a carefully designed differential signal layout.
Recommandé
USB Data Loggers
The LPC1769FBD100K is well suited to USB data loggers because it combines USB Device, Host and OTG support with 512 KB of flash, 64 KB of RAM, and an eight-channel 12-bit ADC. Firmware can sample analog inputs and transfer records over USB while DMA reduces processor involvement in buffer movement. A practical design should place USB routing away from sensitive analog paths, use controlled impedance routing, provide stable decoupling near the MCU, and confirm host or device compliance through appropriate system testing.
Recommandé
CAN-Connected Machine Control
The two CAN channels, four UARTs, motor-control PWM, and 120 MHz processing core of the LPC1769FBD100K support machine controllers, gateway nodes, and industrial condition-monitoring equipment. The microcontroller can coordinate motor functions while exchanging diagnostic data over CAN, and its 512 KB flash accommodates networking, control, and diagnostic software. Each CAN interface still requires a suitable transceiver, protection strategy, termination arrangement, and timing configuration based on the network architecture.
Recommandé
Industrial Sensor Acquisition
The LPC1769FBD100K can serve as the central controller in industrial sensor-acquisition equipment because it combines an eight-channel 12-bit ADC, three I2C channels, three SSP or SPI channels, four UARTs, and 512 KB of program memory. These interfaces allow it to collect measurements from mixed sensor families and perform local filtering or control. Keep sensor excitation and analog inputs away from Ethernet, USB, and high-current switching paths, and follow the datasheet's analog supply and reference recommendations.
Recommandé
Motor Control and Automation
The LPC1769FBD100K fits embedded motor-control and automation designs that require both real-time control and multiple communications links. Its 120 MHz Cortex-M3 core, timer resources, motor-control PWM, eight-channel DMA, and 512 KB of flash allow control tasks to coexist with Ethernet, USB, CAN, and serial protocols. The design should allocate timers and DMA channels carefully, keep power stages away from sensitive signal routing, and validate timing behavior under the worst-case interrupt and communication load.
Recommandé
Connected Audio and Interface Products
The LPC1769FBD100K supports connected audio and interface products that need flexible serial links, moderate real-time processing, and USB connectivity. Its three SSP or SPI channels, three I2C channels, I2S, four UARTs, and USB interface can connect codecs, control interfaces, and configuration peripherals. The 100-pin LQFP also supports a broader pin budget than compact MCUs. Audio designs should separate analog and digital grounds appropriately, control clock jitter, and use impedance-aware routing for USB.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour LPC1769FBD100K — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | LPC1768FBD100K | LPC1767FBD100K | LPC1766FBD100K | LPC1765FBD100K | LPC1769FBD100 |
|---|---|---|---|---|---|---|
| Package | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Processor Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Maximum CPU Frequency | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB | 512 KB |
| Data Memory | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| USB Support | Device, Host, and OTG | Device, Host, and OTG | Device, Host, and OTG | Device, Host, and OTG | Device, Host, and OTG | Device, Host, and OTG |
| ADC | 8 channels, 12-bit | 8 channels, 12-bit | 8 channels, 12-bit | 8 channels, 12-bit | 8 channels, 12-bit | 8 channels, 12-bit |
| Supply Voltage Range | 2.4 V to 3.6 V | 2.4 V to 3.6 V | 2.4 V to 3.6 V | 2.4 V to 3.6 V | 2.4 V to 3.6 V | 2.4 V to 3.6 V |
Principaux différenciateurs
- Retains the full 512 KB flash configuration (vs LPC1765FBD100K)
- Uses the same 100-pin LQFP footprint (vs LPC1768FBD100K)
- Matches the LPC1769 core and memory architecture (vs LPC1769FBD100)
- Provides broad integrated connectivity (vs LPC1766FBD100K)
Notes de conception
Place the required supply and bulk-decoupling capacitors close to the corresponding VDD and VSS pins, and follow the manufacturer datasheet's recommended network and ESR requirements. Keep the 3.3 V distribution path away from Ethernet magnetics, USB protection components, and motor-driver return currents. Use a continuous ground reference beneath the LQFP where the board stack-up permits, while maintaining the thermal and copper requirements needed for reliable assembly.
Treat Ethernet and USB as controlled-impedance interfaces. Route Ethernet differential pairs as a short, continuous pair over a stable reference plane, and keep USB differential traces closely coupled with minimal layer changes. Separate these routes from switching-power nodes and analog inputs. External magnetics, protection, and PHY components must be placed according to the Ethernet and USB reference design guidance used for the selected board.
Do not assume that two LPC176x members are interchangeable solely because they use a 100-pin LQFP. Compare the exact clock limits, flash and RAM capacity, Ethernet and USB availability, CAN channel count, timer resources, pin multiplexing, boot options, and package connections. After any substitution, rebuild the firmware with the replacement device configuration and retest startup, interrupts, communications, analog conversion, and motor timing.
Partition analog and digital circuitry around the MCU's dedicated supplies and ground references. Route sensor inputs away from Ethernet, USB, and switching-power paths, and use compact return connections for analog signals. The 8-channel 12-bit ADC can serve basic acquisition, but its practical accuracy still depends on reference quality, source impedance, filtering, grounding, and PCB leakage control. Validate channel accuracy in the completed assembly.
Informations de conformité
The device is an industrial microcontroller rather than an AEC-Q100-qualified automotive part. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status require confirmation from the current manufacturer or distributor documentation.