NXP Semiconductors LPC1517JBD64E

Overview

LPC1517JBD64E from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller designed for industrial motor control and power conversion applications. It operates at up to 72 MHz, integrates 64 kB flash, 12 kB SRAM, 4 kB EEPROM, two 12-bit ADCs (2 Msamples/s), one 12-bit DAC (500 kSamples/s), four analog comparators, and four State Configurable Timers (SCTimer/PWM) with input pre-processing - all in an LQFP64 package rated for −40 °C to +105 °C.

For engineers reviewing the LPC1517JBD64E datasheet, LPC1517JBD64E pinout, LPC1517JBD64E application, or LPC1517JBD64E equivalent, key selection considerations include its USB-free peripheral set (3 USARTs, 2 SPI, 1 Fast-mode Plus I²C, 1 C_CAN), 46 GPIOs with configurable pull-up/down and glitch filtering, RTC with independent power supply, and support for Deep power-down wake-up via GPIO or RTC alarm.

Technical Context

The LPC1517JBD64E implements a Harvard-architecture ARM Cortex-M3 core with 3-stage pipeline, NVIC, MPU, and Serial Wire Debug (SWD). Its clock system includes a 12 MHz ±1 % internal RC oscillator, crystal oscillator (1–25 MHz), watchdog oscillator (503 kHz), and three PLLs - one for CPU, one for USB (not used here), and one for SCTimer/PWM.

Peripheral integration centers on event-driven timing: four SCTimers accept inputs from ADC thresholds, analog comparators, temperature sensor, and external pins via dedicated SCTIPU and flexible switch matrix routing. Power management includes Sleep, Deep-sleep, Power-down, and Deep power-down modes with wake-up sources including RTC alarm, GPIO activity, and peripheral interrupts (USART, SPI, I²C).

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 × 1.4 mm, SOT314-2), lead-free, RoHS-compliant, with 64 exposed terminals and standard 0.5 mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with LPC1547JBD64 and LPC1519JBD64, the LPC1517JBD64E delivers identical peripheral timing accuracy and analog performance at lowest system cost and EMI footprint - making it the preferred choice for cost-sensitive, USB-free industrial control designs where memory headroom is sufficient.

Availability

LPC1517JBD64E is available at Aetrix Electronics and suitable for motor control, solar inverters, digital power supplies, and building automation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LPC1517JBD64E 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.

The LPC15xx product line was engineered specifically for high-precision, low-latency industrial control - integrating advanced analog peripherals, event-driven timers, and robust power management to replace discrete timing and signal conditioning circuits in motor drives and power converters.

FAQ

What is the maximum operating frequency of the LPC1517JBD64E?

The LPC1517JBD64E features an ARM Cortex-M3 core rated for operation up to 72 MHz. This maximum frequency is achievable using the system PLL driven by either the internal 12 MHz RC oscillator (±1 % accuracy) or an external crystal (1–25 MHz). The core maintains full performance across the full −40 °C to +105 °C industrial temperature range, with timing margins verified per NXP's characterization data.

Does the LPC1517JBD64E include USB functionality?

No, the LPC1517JBD64E does not include USB functionality. Unlike variants such as LPC1547JBD64, this part omits the USB 2.0 full-speed device controller and on-chip PHY. Pins 47 and 48 (USB_DP/USB_DM) are reassigned to GPIO functions (PIO2_12/PIO2_13) in the LQFP64 package, as confirmed in Figure 7 and Table 3 of the official datasheet.

How many analog-to-digital converter (ADC) channels does the LPC1517JBD64E support?

The LPC1517JBD64E integrates two independent 12-bit ADCs: ADC0 supports up to 12 input channels, and ADC1 supports up to 12 input channels - totaling 24 configurable analog inputs. Both ADCs achieve up to 2 Msamples/s aggregate rate with dual independent conversion sequences, and support internal/external triggering including synchronization with SCTimer events.

What power-saving modes are supported by the LPC1517JBD64E?

The LPC1517JBD64E supports four reduced-power modes: Sleep, Deep-sleep, Power-down, and Deep power-down. Wake-up sources include RTC alarm, GPIO activity (e.g., PIO0_17), and peripheral interrupts (USART, SPI, I²C). In Deep power-down mode, current consumption drops to ≤1 µA while retaining RTC operation and SRAM retention - verified per NXP's datasheet Section 10.3.

Is the LPC1517JBD64E pin-compatible with other LPC15xx devices in LQFP64?

Yes, the LPC1517JBD64E shares identical LQFP64 mechanical dimensions and pinout with other LPC15xx LQFP64 variants (e.g., LPC1547JBD64, LPC1519JBD64). However, functional pin assignments differ: USB-related pins are repurposed as GPIOs, and certain analog inputs vary per variant. Full compatibility requires verifying peripheral enablement and register mapping in software - especially for ADC channel mapping and SCTimer input routing.