特性 Features

? Operating Characteristics

– Voltage range: 1.71 to 3.6 V

– Flash write voltage range: 1.71 to 3.6 V

– Temperature range (ambient): -40 to 105°C

? Performance

– Up to 50 MHz ARM Cortex-M4 core with DSP instructions delivering 1.25 Dhrystone MIPS per MHz

? Memories and memory interfaces

– Up to 128 KB program flash.

– Up to 32 KB FlexNVM on FlexMemory devices

– 2 KB FlexRAM on FlexMemory devices

– Up to 16 KB RAM

– Serial programming interface (EzPort)

? Clocks

– 3 to 32 MHz crystal oscillator

– 32 kHz crystal oscillator

– Multi-purpose clock generator

? System peripherals

– Multiple low-power modes to provide power optimization based on application requirements

– 4-channel DMA controller, supporting up to 41 request sources

– External watchdog monitor

– Software watchdog

– Low-leakage wakeup unit

? Security and integrity modules

– Hardware CRC module to support fast cyclic redundancy checks

– 128-bit unique identification (ID) number per chip

? Analog modules

– 16-bit SAR ADC

– Two analog comparators (CMP) containing a 6-bit DAC and programmable reference input

– Voltage reference

? Timers

– Programmable delay block

– Eight-channel motor control/general purpose/PWM timer

– Two-channel quadrature decoder/general purpose timer

– Periodic interrupt timers

– 16-bit low-power timer

– Carrier modulator transmitter

– Real-time clock

? Communication interfaces

– USB full-/low-speed On-the-Go controller with onchip transceiver

– SPI module

– I2C module

– Three UART modules

– I2S module