LPC1315FBD48,551 - 72MHz Cortex-M3 MCU 32KB Flash | NXP
N.º da peça: LPC1315FBD48,551 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.42 | $3,42 |
| 10 | $3.08 | $30,80 |
| 100 | $2.74 | $274,00 |
| 500 | $2.46 | $1.230,00 |
| 1.000 | $2.19 | $2.190,00 |
LPC1315FBD48,551 Visão geral
An ARM Cortex-M3 microcontroller is a 32-bit embedded processor built on the ARMv7-M architecture, which uses a 3-stage pipeline and a Harvard bus structure with separate instruction and data buses plus a dedicated peripheral bus. Within the power-management hierarchy, an MCU integrates the CPU core, memory, and peripherals into a single system-on-chip, replacing multi-chip microprocessor solutions in embedded systems.
Key features of the LPC1315FBD48,551 include high levels of peripheral integration and low power consumption: a fast GPIO module with pin toggle rates far above legacy 8051-class MCUs, USART serial communication, on-chip ADC, and in-system programmable (ISP) and in-application programming (IAP) flash. The Cortex-M3 core includes an internal prefetch unit supporting speculative branching, plus enhanced debug features via Serial Wire Debug and JTAG interfaces.
Architecturally, the LPC13xx series executes Thumb-2 instructions for high code density, and NXP's nested vectored interrupt controller (NVIC) delivers deterministic low-latency interrupt handling essential for real-time firmware. The flash accelerator optimizes sequential code execution at the full 72 MHz clock rate.
Typical applications include industrial control and automation nodes, consumer appliances, motor control interfaces, USB-connected accessories, and embedded system retrofit designs where 32-bit performance must replace legacy 8-bit devices without cost or board-area growth.
A key design consideration is supply voltage: the LPC1315FBD48,551 operates from a 3.3 V rail, so level shifting is required when interfacing 5 V logic; decouple each VDD pin with 100 nF ceramics placed close to the package.
This page synthesizes distributor pricing, drop-in alternatives within the LPC13xx family, and practical design guidance not found in the NXP datasheet alone.
Alternativas drop-in para LPC1315FBD48,551 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
LPC1316FBD48,551
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
LPC1317FBD48,551
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
LPC1345FBD48,551
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
LPC1346FBD48,551
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
LPC1347FBD48,551
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
LPC1315FBD48,151
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
LPC1315FBD48,551 Classificações máximas e características elétricas
| Core Processor | ARM Cortex-M3 |
| Core Size | 32-Bit |
| Frequência máxima de clock | 72 MHz |
| Program Memory Size | 32 KB (32K x 8) |
| Program Memory Type | FLASH |
| Data RAM Size | 8 KB |
| Largura do barramento de dados | 32 bit |
| CPU Architecture | Harvard, 3-stage pipeline |
| On-Chip ADC | Yes |
| USART | Yes |
| Connectivity | USB device (LPC13xx family feature), USART |
| Programming Features | ISP / IAP flash programming |
| Debug Interface | Serial Wire Debug, JTAG |
| Encapsulamento | 48-LQFP (7x7 mm) |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
Guia de Configuração de Pinos do LPC1315FBD48,551 48-lqfp (7x7 mm)
Configuração de pinos para LPC1315FBD48,551 (pacote 48-lqfp (7x7 mm)). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para LPC1315FBD48,551.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
LPC1315FBD48,551 é adequado para 6 aplicaçãos: Industrial Control Nodes, Consumer Appliances, Sensor Acquisition Modules, Embedded System Retrofit, Serial Communication Bridges, Motor Control Interfaces.
Industrial Control Nodes
The LPC1315FBD48,551 fits industrial control nodes because its 72 MHz Cortex-M3 core provides roughly 90 DMIPS-class throughput, ample for Modbus-style USART communication loops and digital I/O scanning, while the on-chip ADC samples process feedback without external conversion circuitry. In a typical node, the MCU polls sensors through the ADC, executes a PID control routine, and reports status over USART to a PLC or SCADA gateway. Deterministic nested vectored interrupt handling keeps control-loop jitter low, and 32 KB flash is usually sufficient for fixed-function logic. ISP/IAP flash programming enables field firmware updates during maintenance windows without desoldering the LQFP-48 device.
Recomendado
Consumer Appliances
In white goods and small appliances, the LPC1315FBD48,551 replaces legacy 8-bit MCUs while holding near-equivalent cost in the entry-level LPC13xx tier. The 72 MHz execution speed lets firmware handle capacitive-touch debounce, beeper tone generation, and display multiplexing in a single time-sliced loop, and the 3-stage Harvard pipeline sustains responsive UI latency. Its low power consumption profile supports energy-efficiency targets in standby modes. The 48-LQFP (7x7) footprint provides enough GPIO for button matrices, relay drives, and 7-segment or LCD drive lines, while pin-compatible family members (LPC1316/LPC1317) allow a single PCB to be populated with more flash for feature-stacked appliance variants.
Recomendado
Sensor Acquisition Modules
The on-chip ADC of the LPC1315FBD48,551 makes it a compact front-end for multi-channel sensor acquisition: analog inputs are sampled, filtered, and scaled in firmware, then streamed over USART to a host. Running at 72 MHz, the Cortex-M3 executes oversampling and moving-average filtering efficiently, and the 8 KB SRAM buffers telemetry records without external memory. The 48-pin LQFP leaves sufficient GPIO for sensor enable lines and one-wire or I2C device configuration via bit-banged or peripheral-assisted buses. Because the family datasheet specifies high integration and low power consumption, battery-backed loggers and wall-powered dataloggers share one firmware baseline, cutting qualification effort across product variants.
Recomendado
Embedded System Retrofit
When modernizing designs built around legacy 8051-class or discontinued MCUs, the LPC1315FBD48,551 provides a low-risk 32-bit upgrade path: Thumb-2 code density keeps firmware compact within 32 KB flash, and the entry-level price avoids BOM inflation versus the retired part. The Cortex-M3 core with a 3-stage pipeline and prefetch unit executes control code orders of magnitude faster than the original silicon, opening headroom for added features such as diagnostics or security checks. ISP/IAP flash support simplifies one-time programming on the production line. Designers can additionally keep an upgrade slot open: the pin-compatible LPC1317FBD48,551 doubles flash in the same 48-LQFP footprint if requirements grow.
Recomendado
Serial Communication Bridges
The USART of the LPC1315FBD48,551 anchors simple protocol-conversion bridges - for example, translating between a factory RS-485 field bus and a local display or configuration port. At 72 MHz, firmware implements CRC checking, framing, and buffering in software with wide margin, and the 8 KB SRAM holds dual ring buffers for full-duplex throughput. Deterministic interrupt latency from the Cortex-M3 NVIC prevents character overrun at high baud rates. Bridge firmware typically occupies well under the 32 KB flash budget, leaving space for command-line configuration and OTA-style IAP updates. For USB-to-serial variants, migrate within the same footprint to the LPC1345FBD48,551, which adds a hardware USB device controller.
Recomendado
Motor Control Interfaces
For fan, pump, and small-motor applications, the LPC1315FBD48,551 supervises gate drivers and reads feedback through its on-chip ADC: speed commands arrive over USART, firmware generates PWM outputs on fast GPIO, and back-EMF or current-sense signals close the loop. The 72 MHz core executes commutation math and protection checks (over-current, stall) within control periods at this performance class, and the NVIC prioritizes fault interrupts above the control loop for fast shutdown. The LQFP-48 pin count provides the GPIO needed for multiple driver enable lines and tachometer inputs. At higher power levels, pair the MCU with a dedicated motor driver IC to keep gate-drive currents off the MCU pins.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para LPC1315FBD48,551 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | LPC1316FBD48,551 | LPC1317FBD48,551 | LPC1345FBD48,551 | LPC1347FBD48,551 |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same |
| Core / Max Clock | ARM Cortex-M3, 72 MHz | ARM Cortex-M3, 72 MHz | ARM Cortex-M3, 72 MHz | ARM Cortex-M3, 72 MHz | ARM Cortex-M3, 72 MHz |
| Flash Memory | 32 KB | 48 KB | 64 KB | 32 KB | 64 KB |
| USB Device | No | No | No | Yes | Yes |
| USART / ADC | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes |
| Best Use Case | Cost-optimized control, no USB | Firmware growth within 48 KB | Maximum flash headroom, no USB | USB device, 32 KB budget | USB device with 64 KB headroom |
Principais diferenciais
- Lowest flash in family, lowest cost tier (vs LPC1316FBD48,551)
- Same package, 2x flash headroom available (vs LPC1317FBD48,551)
- Non-USB cost focus vs USB-capable siblings (vs LPC1345FBD48,551)
- Deterministic Cortex-M3 real-time response (vs LPC1347FBD48,551)
Notas de projeto
Estimated: decouple every VDD/VSS pin pair of the LPC1315FBD48,551 with a 100 nF ceramic capacitor placed within 2-3 mm of the pin, plus one bulk 4.7-10 uF capacitor near the package. The LQFP-48 has power pins on opposing sides; distribute the 100 nF capacitors around all four edges rather than clustering them, which keeps transient supply droop low during simultaneous GPIO switching at 72 MHz.
The LPC13xx family is a 3.3 V device - do not feed 5 V logic directly into GPIO pins. For legacy 5 V interfaces, use a level translator such as the NLSV1T34DFT2G or a series resistor with clamping only after verifying input structure limits in the NXP datasheet. Also confirm that the debug connector follows the Cortex-M3 Serial Wire Debug (SWD) pin assignment; wiring a JTAG-only header to SWD-dedicated pins on this family is a frequent bring-up failure.
Design the 48-LQFP (7x7) footprint with solder-mask-defined pads per the NXP package drawing and include the center ground feature only if the datasheet land-pattern revision for your package suffix specifies it. Reserve the option to populate the LPC1317FBD48,551 (64 KB) or LPC1347FBD48,551 (USB + 64 KB): the family shares the pinout, so an identical land pattern supports the whole LPC131x/134x 48-pin range, giving a no-rework upgrade path at layout time.
Keep the SWDIO/SWCLK traces short (<10 cm) and route away from switching nodes such as motor gate-drive lines, since debug corruption from coupled noise is hard to diagnose in the field. If you use the ADC for sensor acquisition, star-ground the analog input filter network near the MCU pin and add an RC anti-alias filter sized to the sampling rate you run - the on-chip ADC input structure benefits from a source impedance within the range the family user manual recommends.
Informações de conformidade
RoHS-compliant per DigiKey/Mouser listings; the ',551' NXP suffix denotes the standard RoHS/lead-free tray-packaged version. REACH, halogen-free, and conflict-minerals statements not found in the provided data.