LPC11U68JBD48E

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1. Describe

LPC11U68JBD48E is a low-cost 32-bit MCU series based on ARM Cortex-M0+ The CPU frequency is up to 50 MHz. LPC11U6x supports up to 256 KB of flash memory, A 4 KB EEPROM and 36 KB SRAM. ARM Cortex-M0+ is an easy-to-use energy-saving core that uses a two-stage pipeline And fast single-cycle I/O access. The peripheral supplements of LPC11U6x include a DMA controller, a CRC engine, One full-speed USB device controller with XTAL less low-speed mode, two I2C buses Interfaces, up to five USARTs, two SSP interfaces, with six PWM/timer subsystems Configurable multi-purpose timer, real-time clock, a 12-bit ADC, temperature Sensors, function configurable I/O ports and up to 80 general-purpose I/O pins. Additional documentation on LPC11U6x parts.

2. Features

    1. System:

        - ARM Cortex-M0+ processor (version r0p1), running at frequencies of up to 50 MHz with single-cycle multiplier and fast single-cycle I/O port.

        - ARM Cortex-M0+ built-in Nested Vectored Interrupt Controller (NVIC).

        - AHB Multilayer matrix.

        - System tick timer.

        - Serial Wire Debug (SWD) and JTAG boundary scan modes supported.

        - Micro Trace Buffer (MTB) supported.

    2. Memory:

        - Up to 256 KB on-chip flash programming memory with page erase.

        - Up to 32 KB main SRAM.

        - Up to two additional SRAM blocks of 2 KB each.

        - Up to 4 KB EEPROM.

    3. ROM API support:

        - Boot loader.

        - USART drivers.

        - I2C drivers.

        - USB drivers.

        - DMA drivers.

        - Power profiles.

        - Flash In-Application Programming (IAP) and In-System Programming (ISP).

        - 32-bit integer division routines.

    4. Digital peripherals:

        - Simple DMA engine with 16 channels and programmable input triggers.

        - High-speed GPIO interface connected to the ARM Cortex-M0+ IO bus with up to 80 General-Purpose I/O (GPIO) pins with configurable pull-up/pull-down resistors

        - programmable open-drain mode, input inverter, and programmable glitch filter and digital filter.

        - Pin interrupt and pattern match engine using eight selectable GPIO pins.

        - Two GPIO group interrupt generators.

        - CRC engine

    5. Configurable PWM/timer subsystem (two 16-bit and two 32-bit standard counter/timers, two State-Configurable Timers (SCTimer/PWM)) that provides:

        - Up to four 32-bit and two 16-bit counter/timers or two 32-bit and six 16-bit counter/timers.

        - Up to 21 match outputs and 16 capture inputs.

       - Up to 19 PWM outputs with 6 independent time bases.

    6. Windowed WatchDog timer (WWDT).

    7. Real-time Clock (RTC) in the always-on power domain with separate battery supply pin and 32 kHz oscillator.

    8. Analog peripherals:

        - One 12-bit ADC with up to 12 input channels with multiple internal and external trigger inputs and with sample rates of up to 2 Msamples/s. The ADC supports two independent conversion sequences.

        - Temperature sensor.

    9. Serial interfaces:

        - Up to five USART interfaces, all with DMA, synchronous mode, and RS-485 mode support. Four USARTs use a shared fractional baud generator.

        - Two SSP controllers with DMA support.

        - Two I2C-bus interfaces. One I2C-bus interface with specialized open-drain pins supports I2C Fast-mode plus.

        - USB 2.0 full-speed device controller with on-chip PHY. XTAL-less low-speed mode supported.

  10. Clock generation:

        - The 12 MHz internal RC oscillator is adjusted to 1% accuracy, suitable for -25 ℃ ≤ Tamb ≤ +85 ℃ and can be used as the system clock.

        - On-chip 32 kHz oscillator for RTC.

        - Crystal oscillator with an operating range of 1 MHz to 25 MHz. Oscillator pins are shared with the GPIO pins.

        - Programmable watchdog oscillator with a frequency range of 9.4 kHz to 2.3 MHz.

        - PLL allows CPU operation up to the maximum CPU rate without the need for a high-frequency crystal.

        - A second, dedicated PLL is provided for USB.

        - Clock output function with divider that can reflect the crystal oscillator, the main clock, the IRC, or the watchdog oscillator.

  11. Power control:

        - Integrated PMU (Power Management Unit) to minimize power consumption.

        - Reduced power modes: Sleep mode, Deep-sleep mode, Power-down mode, and Deep power-down mode.

        - Wake-up from Deep-sleep and Power-down modes on external pin inputs and USART activity.

        - Power-On Reset (POR).

        - Brownout detect.

  12. Unique device serial number for identification.

  13. Single power supply (2.4 V to 3.6 V).

  14. Separate VBAT supply for RTC.

  15. Operating temperature range - 40 °C to 105 °C.

  16. Available as LQFP48, LQFP64, and LQFP100 packages.

3. Application

    1. Three-phase electric meter

    2. Car radio

    3. GPS tracker

    4. Medical monitor

    5. Game accessories

    6. Computer peripherals

4. Pin configuration

5. Package overview