Microchip ATSAMHA1E14A-MBT-BVAO

The SAM HA1E14A-MBT-B is a low-power automotive system-in-package (SiP) product using the 32-bit Arm® Cortex® M0+ processor featuring 32 pins with 16 KB of Flash, 0.5 KB of read-while-write data flash, and 4 KB of SRAM. The SAM HA1 devices operate at a maximum frequency of 48 MHz and reach 2.46 Coremark/MHz. They also include a LIN system basis chip (SBC) with a fully integrated LIN transceiver designed in compliance with the LIN specifications 2.0, 2.1, 2.2, 2.2A, ISO 17987-4 and SAEJ2602-2, and a 3.3V/85mA voltage regulator.

Processor
• Arm Cortex-M0+ CPU running at up to 48 MHz
• Single-cycle hardware multiplier
• Micro trace buffer

Memories
• 16 KB in-system self-programmable Flash
• 0.5 KB Read-While-Write (RWW) Flash section
• 4 KB SRAM memory

System
• Power-on reset (POR) and brown-out detection (BOD)
• Internal and external clock options with 48 MHz digital frequency locked loop (DFLL48M) and 48MHto 96MHz
• 48 MHz to 96 MHz fractional digital phase locked loop (FDPLL96M)
• External interrupt controller (EIC)
• 13 external interrupts
• One non-maskable interrupt
• Two-pin serial wire debug (SWD) programming, test and debugging interface

Low power
• Idle and standby sleep modes
• SleepWalking peripherals

Peripherals
• 8-channel direct memory access controller (DMAC)
• 12-channel event system

Two 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

Four 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 6 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)

One analog comparators (AC) with window compare function

Peripheral Touch Controller (PTC)

Packages
• 32-pin QFN

Operating voltage
• 2.7V to 3.63V

Built-in safety features
• CRC calculations on flash memory to detect errors
• Peripheral Access Controller to prevent accidental writes to configuration registers
• Two independent voltage monitors: BOD33 and Voltage check on Lin SBC
• Voltage monitoring for VS
• Power-on Reset for a controlled startup
• TXD dominant timeout timer
• Overtemperature Detection