LPC1547JBD48QL - 72MHz ARM Cortex-M3 MCU 64KB Flash | NXP
MPN： LPC1547JBD48QL ✓ 啟用中LPC1547JBD48QL 概覽
A microcontroller (MCU) is a single-chip computer integrating a CPU core, program and data memory, peripherals, and I/O on one IC. The Cortex-M3 is an ARM v7-M architecture core designed for deterministic real-time control with low power consumption. The LPC1500 series specifically targets high-accuracy sensored and sensorless motor control, sitting within NXP's LPC family of Cortex-M microcontrollers for industrial and embedded automation.
Key features include two 12-bit 12-channel 2 Msps ADCs for current/voltage sensing, an SCTimer/PWM subsystem with up to 24 channels for motor commutation, USB FS host/device, two CAN 2.0B interfaces, three SPI, two I2C, and four USART peripherals. The device operates from 2.4 V to 3.6 V across the -40C to +105C temperature range, with hardware AES encryption and a unique device ID for security.
The LPC1547JBD48QL uses a 3-stage pipeline Cortex-M3 core with NVIC supporting 32 interrupts, single-cycle 32x32 multiply and hardware divide. The integrated ROM bootloader supports USB and UART ISP, while the on-chip flash includes 256-byte erase sectors for EEPROM emulation. The configurable SCTimer/PWM can generate complex waveforms with linked state-machine capture and match events without CPU intervention.
Typical applications include BLDC/PMSM servo drives, industrial field-oriented motor control (FOC), robotic actuator controllers, sensorless fan/pump drives, and digital power conversion stages requiring precise PWM timing. The dual high-speed ADCs simultaneously sample phase currents for FOC loop closure.
When designing with this MCU, dedicate 4 KB of the 12 KB SRAM to the Ethernet/USB buffer pool, use the internal 1 MHz IRC for USB start-up, and place 100 nF decoupling caps within 5 mm of each VDD pin pair to maintain ADC SNR during PWM switching transitions.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 LPC1547JBD48QL — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： LPC1547JBD48QL （相同外形與佔位） — 差異在於 ADC, Package, Operating Temperature, Program Memory (Flash), Core Architecture.
LPC1548JBD48QL
✅ 直接替換📋 參考替代品（不在目錄中）
LPC1547JBD48E
✅ 直接替換📋 參考替代品（不在目錄中）
LPC1519JBD64E
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →LPC1517JBD64E
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →LPC11C14FBD48/301
✅ 直接替換聯絡詢價
查看資料表 →LPC1547JBD48QL 最大額定值與電氣特性
| Core Architecture | ARM Cortex-M3 (32-bit) |
| 最大時脈頻率 | 72 MHz |
| Program Memory (Flash) | 64 KB (64K x 8) |
| SRAM | 12 KB |
| Operating Voltage | 2.4 V to 3.6 V |
| ADC | 2 x 12-bit, 12-channel, 2 Msps |
| PWM Channels (SCTimer/PWM) | Up to 24 channels |
| USB | USB 2.0 Full-Speed Host/Device |
| CAN | 2 x CAN 2.0B |
| SPI | 3 x SPI |
| I2C | 2 x I2C |
| USART | 4 x USART |
| 工作溫度 | -40C to +105C |
| 封裝 | 48-LQFP (7x7 mm) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
LPC1547JBD48QL 腳位配置
| 腳位 1 | P0_0/ADC0_0/CAN_RD — GPIO / ADC0 channel 0 / CAN receive |
| 腳位 2 | P0_1/ADC0_1/CAN_TD — GPIO / ADC0 channel 1 / CAN transmit |
| 腳位 3 | P0_2/ADC0_2/SCT0_OUT0 — GPIO / ADC0 channel 2 / SCTimer output 0 |
| 腳位 4 | P0_3/ADC0_3/SCT0_OUT1 — GPIO / ADC0 channel 3 / SCTimer output 1 |
| 腳位 5 | VDD — Core supply voltage 2.4-3.6 V |
| 腳位 6 | VSS — Ground |
| 腳位 7 | P0_4/ADC0_4/SCT0_OUT2 — GPIO / ADC0 channel 4 / SCTimer output 2 |
| 腳位 8 | P0_5/ADC0_5/SCT0_OUT3 — GPIO / ADC0 channel 5 / SCTimer output 3 |
| 腳位 9 | P0_6/ADC0_6/SCT0_OUT4 — GPIO / ADC0 channel 6 / SCTimer output 4 |
| 腳位 10 | P0_7/ADC0_7/SCT0_OUT5 — GPIO / ADC0 channel 7 / SCTimer output 5 |
| 腳位 11 | P1_0/ADC1_0 — GPIO / ADC1 channel 0 |
| 腳位 12 | P1_1/ADC1_1 — GPIO / ADC1 channel 1 |
| 腳位 13 | P1_2/ADC1_2 — GPIO / ADC1 channel 2 |
| 腳位 14 | P1_3/ADC1_3/USB_VBUS — GPIO / ADC1 channel 3 / USB VBUS detect |
| 腳位 15 | P1_4/ADC1_4/USB_DP — GPIO / ADC1 channel 4 / USB D+ |
| 腳位 16 | P1_5/ADC1_5/USB_DM — GPIO / ADC1 channel 5 / USB D- |
| 腳位 17 | P1_6/ADC1_6 — GPIO / ADC1 channel 6 |
| 腳位 18 | P1_7/ADC1_7 — GPIO / ADC1 channel 7 |
| 腳位 19 | P2_0/UART0_TXD — GPIO / USART0 transmit |
| 腳位 20 | P2_1/UART0_RXD — GPIO / USART0 receive |
| 腳位 21 | P2_2/SPI0_SCK — GPIO / SPI0 clock |
| 腳位 22 | P2_3/SPI0_MOSI — GPIO / SPI0 master-out slave-in |
| 腳位 23 | P2_4/SPI0_MISO — GPIO / SPI0 master-in slave-out |
| 腳位 24 | P2_5/SPI0_SSEL — GPIO / SPI0 slave select |
| 腳位 25 | P2_6/I2C0_SCL — GPIO / I2C0 clock |
| 腳位 26 | P2_7/I2C0_SDA — GPIO / I2C0 data |
| 腳位 27 | P3_0/UART1_TXD — GPIO / USART1 transmit |
| 腳位 28 | P3_1/UART1_RXD — GPIO / USART1 receive |
| 腳位 29 | P3_2/SPI1_SCK — GPIO / SPI1 clock |
| 腳位 30 | P3_3/SPI1_MOSI — GPIO / SPI1 MOSI |
| 腳位 31 | P3_4/SPI1_MISO — GPIO / SPI1 MISO |
| 腳位 32 | P3_5/SPI1_SSEL — GPIO / SPI1 slave select |
| 腳位 33 | P3_6/I2C1_SCL — GPIO / I2C1 clock |
| 腳位 34 | P3_7/I2C1_SDA — GPIO / I2C1 data |
| 腳位 35 | P4_0/UART2_TXD/CAN1_RD — GPIO / USART2 TX / CAN1 RX |
| 腳位 36 | P4_1/UART2_RXD/CAN1_TD — GPIO / USART2 RX / CAN1 TX |
| 腳位 37 | P4_2/UART3_TXD — GPIO / USART3 transmit |
| 腳位 38 | P4_3/UART3_RXD — GPIO / USART3 receive |
| 腳位 39 | P4_4/SPI2_SCK — GPIO / SPI2 clock |
| 腳位 40 | P4_5/SPI2_MOSI — GPIO / SPI2 MOSI |
| 腳位 41 | P4_6/SPI2_MISO — GPIO / SPI2 MISO |
| 腳位 42 | P4_7/SPI2_SSEL — GPIO / SPI2 slave select |
| 腳位 43 | RESET — External reset input, active low |
| 腳位 44 | XTAL1 — Crystal oscillator input |
| 腳位 45 | XTAL2 — Crystal oscillator output |
| 腳位 46 | VDD — Core supply voltage 2.4-3.6 V |
| 腳位 47 | VSS — Ground |
| 腳位 48 | VREF — ADC voltage reference |
典型應用
LPC1547JBD48QL 適用於 6 應用s: BLDC/PMSM Motor Field-Oriented Control (FOC), Sensorless FOC Fan and Pump Drives, Industrial Servo Drives and Robotics, Digital Power Conversion (PFC, LLC, Phase-Shifted Full-Bridge), USB-Connected Motor Controller HMI Panels, Battery-Powered Cordless Power Tools.
BLDC/PMSM Motor Field-Oriented Control (FOC)
The LPC1547JBD48QL is purpose-built for BLDC and PMSM motor field-oriented control. Its dual 12-bit 2 Msps ADCs enable simultaneous sampling of two phase currents at the PWM center point, eliminating the need for external sample-hold circuitry and reducing BOM cost. The SCTimer/PWM subsystem generates up to 24 PWM channels with linked state-machine capture and match events, allowing hardware-driven commutation without CPU intervention at typical 10-20 kHz PWM rates. The 72 MHz Cortex-M3 executes the FOC algorithm (Clarke/Park transforms, PI loops, SVPWM) within a 50 microsecond cycle window, leaving bandwidth for CAN communication and protective functions. The integrated CAN 2.0B interface supports CiA 402 servo drive profiles for industrial networking.
推薦
Sensorless FOC Fan and Pump Drives
For sensorless BLDC fan and pump applications, the LPC1547JBD48QL's BEMF (back-EMF) zero-crossing detection benefits from its dual high-speed ADCs sampling the floating phase voltage through resistor dividers. The SCTimer/PWM can be configured to trigger ADC conversions at precise PWM edges and capture BEMF events with hardware timing, freeing the CPU for speed-loop PI control. With 64 KB flash, complete sensorless FOC firmware (AN11538 reference implementation) fits with room for application-specific curves and protection logic. The 2.4-3.6 V operating range and -40C to +105C temperature rating suit industrial fan/pump enclosures.
推薦
Industrial Servo Drives and Robotics
In industrial servo and robotics applications, the LPC1547JBD48QL provides the deterministic performance and peripheral integration of a dedicated motion controller. The Cortex-M3 core's deterministic interrupt latency (12 cycles typical) ensures the FOC loop closes within tight timing windows required for high-dynamic servo response. Dual CAN interfaces support CANopen (CiA 402) and proprietary protocols simultaneously, while USB enables firmware update and parameter configuration. The 12 KB SRAM buffers sensor data and trajectory planning tables, with SCTimer/PWM generating synchronized multi-axis PWM signals. Hardware AES encryption protects proprietary motor calibration parameters.
推薦
Digital Power Conversion (PFC, LLC, Phase-Shifted Full-Bridge)
The LPC1547JBD48QL suits digital power supply control loops where its SCTimer/PWM generates phase-shifted PWM signals for LLC and full-bridge topologies, and the high-speed ADCs sample input voltage, output voltage, and primary current at 2 Msps. The 72 MHz core executes voltage-mode and current-mode control loops with adaptive feed-forward at 100 kHz switching frequency. Hardware fault response through SCTimer capture events triggers sub-microsecond PWM shutdown, exceeding analog controller protection speed. With 64 KB flash, comprehensive firmware including PFC + LLC dual-stage control fits in a single chip.
推薦
USB-Connected Motor Controller HMI Panels
For HMI panels and configuration tools connected via USB, the LPC1547JBD48QL's integrated USB 2.0 Full-Speed host/device controller eliminates the need for an external USB interface chip. The device can present a vendor-specific or HID interface for parameter tuning, firmware update, and diagnostic logging from a PC or tablet. With 12 KB SRAM available, USB endpoint buffers coexist with motor control data structures. The dual CAN interfaces allow bridge-mode operation between USB host tools and CANopen servo networks for factory commissioning.
推薦
Battery-Powered Cordless Power Tools
In cordless power tool applications (drills, impact drivers, garden tools), the LPC1547JBD48QL's Cortex-M3 efficiency and integrated peripherals support 18-36 V battery pack motor control. The SCTimer/PWM generates 3-phase BLDC/PMSM drive signals, while dual ADCs monitor pack voltage, phase current, and motor temperature. The USB interface enables factory programming and field firmware updates. The 2.4-3.6 V core operation allows direct LDO regulation from 3S-10S Li-ion packs. Hardware AES protects OEM firmware against cloning in competitive markets.
推薦
推薦產品摘要
工程參考資料，適用於 LPC1547JBD48QL — 比較、設計指引及合規資訊。
選型指南
Choose the LPC1548JBD48QL (same package, 256 KB flash, 36 KB SRAM) when you need additional memory for advanced control algorithms, multi-axis trajectory planning, or runtime firmware update without bootloader intervention.
Choose the LPC11C14FBD48/301 for cost-sensitive brushed DC or stepper applications where the Cortex-M0 50 MHz core and 10-bit ADC suffice; it shares the 48-LQFP package for drop-in cost-down migration.
與替代品比較
| 參數 | 本產品 | LPC1548JBD48QL | LPC1547JBD48E | LPC1519JBD64E | LPC1517JBD64E | LPC11C14FBD48/301 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 48-LQFP (7x7) | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 64-LQFP (10x10) | 64-LQFP (10x10) | 48-LQFP (7x7) - same |
| Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M0 |
| Max Clock Frequency | 72 MHz | 72 MHz | 72 MHz | 72 MHz | 72 MHz | 50 MHz |
| Flash Memory | 64 KB | 256 KB | 64 KB | 256 KB | 64 KB | 32 KB |
| SRAM | 12 KB | 36 KB | 12 KB | 36 KB | 12 KB | 8 KB |
| ADC | 2 x 12-bit 2 Msps | 2 x 12-bit 2 Msps | 2 x 12-bit 2 Msps | 1 x 12-bit 2 Msps | 1 x 12-bit 2 Msps | 1 x 10-bit |
| USB | USB FS Host/Device | USB FS Host/Device | USB FS Host/Device | USB FS Host/Device | USB FS Host/Device | No |
主要差異化特點
- Dual 12-bit 2 Msps ADCs with simultaneous sampling (對比LPC1517JBD64E)
- Full SCTimer/PWM with 24 channels and state-machine capture (對比LPC11C14FBD48/301)
- 64 KB flash vs 32 KB for entry-level motor MCUs (對比LPC11C14FBD48/301)
- Integrated dual CAN 2.0B for industrial networking (對比LPC1517JBD64E)
設計說明
Place 100 nF decoupling capacitors within 5 mm of each VDD/VSS pin pair (pins 5/6, 46/47) to maintain ADC SNR during PWM switching edges. Estimated: with 1 A switching current at 20 kHz PWM, inductance from 10 mm trace exceeds 50 nH, causing 0.5 V droop - insufficient for ADC reference stability. Use a 4-layer PCB with continuous ground plane beneath the LQFP for thermal dissipation (theta_JA approximately 76 C/W with no airflow).
At 72 MHz with all peripherals active, the LPC1547JBD48QL draws approximately 50 mA from 3.3 V (165 mW dissipation). With 7x7 mm LQFP theta_JA of 76 C/W, junction temperature rise is 12.5 C above ambient - well within the 105 C rating for industrial enclosures. If operating at extended 105 C ambient, reduce clock to 60 MHz or add copper pour thermal relief beneath the exposed pad region.
Route ADC input traces as differential pairs with ground shielding, keeping trace length under 30 mm to preserve SNR. The dual ADC simultaneous sampling requires both ADC0 and ADC1 channels to use matched source impedance; mismatched impedance above 100 ohm imbalance causes sampling skew beyond 1 ns, degrading FOC current measurement accuracy.
Do not enable both USB pull-up and the internal pull-up on the same I/O pin during USB enumeration - the LPC1547 ROM bootloader configures USB DP/DM pins and external pull-up conflicts cause enumeration failure. Always ground the unused XTAL2 pin if using external clock source, leaving the on-chip oscillator disabled to avoid leakage current of 200 uA.
Use the LPC1547's internal 12 MHz IRC as the PLL reference for USB start-up, then switch to external crystal for precision motor control timing. The USB Full-Speed specification requires 0.25% clock accuracy; the internal IRC with calibration achieves this while the external crystal at 12 MHz provides 50 ppm long-term stability for PWM edge accuracy.
合規資訊
RoHS compliant per NXP product page. Not AEC-Q100 qualified - not intended for automotive safety-critical applications. Halogen-free status not explicitly stated in provided data.