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New LIN System-in-Package Solution Including a Microcontroller with Touch Hardware Support

Microchip’s New SAMHA1GxxA Microcontroller Family Delivers Integrated Peripheral Touch Controller for Automotive HMI Applications

The industry’s first automotive-grade Local Interconnect Network (LIN) System-in-Package (SiP) solution including a microcontroller with integrated touch hardware support is now available from Microchip. The SAMHA1GxxA microcontroller family contains capacitive touch hardware support, an event system and complex PWM capability. The series is ideal for touch button, touchpad, slider, wheel or proximity sensing applications, including optical and haptic feedback.

Click for Larger Image - New LIN System-in-Package Solution Including a Microcontroller with Touch Hardware Support The SAMHA1GxxA contains an ARM® Cortex®-M0+ microcontroller (MCU), a LIN transceiver based on Microchip’s fourth-generation LIN IP and a voltage regulator. The system solution comes in a 7 × 7 mm QFN package, with wettable flanks ready for automatic optical solder inspection and is available with 16k, 32k or 64k Flash memory, up to 8 KB SRAM and 2 KB Read-While-Write Flash.

The microcontroller family is automotive grade and designed to meet the high quality standards of the automotive industry. It features easy-to-create touch buttons with high sensitivity and outstanding noise immunity, supported by our QTouch® software function library. The high electromagnetic compatibility (EMC) robustness of the LIN communication is fulfilling the requirements of OEMs worldwide.

“The high performance and small package size of the SAMHA1GxxA microcontroller allows designers to create unique human machine interfaces in automotive and industrial applications,” said Matthias Kaestner, automotive vice president. “As a leader in both automotive touch and LIN solutions, we are committed to bringing innovative, cost-effective solutions to next-generation vehicles.”

Features of the ATSAMHA1G16A-B LIN System in Package

  • Processor
    • ARM Cortex-M0+ CPU running at up to 48MHz
    • Single-cycle hardware multiplier
    • Micro trace buffer
  • Memories
    • 64KB in-system self-programmable Flash
    • 2KB Read-While-Write (RWW) Flash section
    • 8KB SRAM memory
  • System
    • Power-on reset (POR) and brown-out detection (BOD)
    • Internal and external clock options with 48MHz digital frequency locked loop
    • fractional digital phase locked loop
    • External interrupt controller
    • 15 external interrupts
    • One non-maskable interrupt
    • Two-pin serial wire debug (SWD) programming, test and debugging interface
  • Low Power
    • 8-channel direct memory access controller
    • 12-channel event system
  • Five 16-bit timer/counters (TC), configurable as either:
    • One 16-bit TC with compare/capture channels
    • One 8-bit TC with compare/capture channels
    • One 32-bit TC with compare/capture channels, by using two TCs
  • Three 16-bit timer/counters for control (TCC), with extended functions:
    • Up to four compare channels with optional complementary output
    • Generation of synchronized pulse width modulation (PWM) pattern across port pins
    • Deterministic fault protection, fast decay and configurable dead-time between complementary output
    • Dithering for enhancing resolution with up to 5-bit and reduce quantization error
  • 32-bit real time counter (RTC) with clock/calendar function
  • Watchdog timer (WDT)
  • CRC-32 generator
  • Five serial communication interfaces (SERCOM), each configurable to operate as either:
    • USART with full-duplex and single-wire half-duplex configuration
    • I²C up to 3.4MHz
    • SPI
  • One 12-bit, 350ksps analog-to-digital converter (ADC) with up to 13 channels
    • Differential and single-ended input
    • 1/2x to 16x programmable gain stage
    • Automatic offset and gain error compensation
    • Oversampling and decimation in hardware to support 13-, 14-, 15- or 16-bit resolution
  • 10-bit, 350ksps digital-to-analog converter (DAC)
  • Two analog comparators (AC) with window compare function
  • Peripheral Touch Controller (PTC)

For more information on the ATSAMHA1G16A-B LIN System in Package, visit the Microchip Web site at Microchip ATSAMHA1G16A-B Product Page

Note: The Microchip name and the Microchip logo are registered trademarks of Microchip Technology Incorporated in the U.S.A and other countries. All other trademarks mentioned herein are the property of their respective companies.

The company's Web site address is www.microchip.com
[Reprinted with kind permission from Microchip Corporation - Release Date, 27th October, 2016]