特性 Features

Key features of the F3224 Series MCU include:

? 20 MHz eZ8 CPU core

? 16 KB or 32 KB Flash memory with in-circuit programming capability

? 3.75KB internal RAM

? Up to 15-Channel, 12-bit Analog-to-Digital Converter (ADC) that can be configured

for internal or external voltage reference and single-ended or differential inputs

? Two on-chip analog comparators

? Two on-chip, low-power operational amplifiers

? 8 Channel Event System provides communication between peripherals for autonomous

triggering

? Full-duplex 9-bit UART port with the support of Local Interconnect Network (LIN)

and Digital Addressable Lighting Interface (DALI) protocols. RS-485 Multidrop Mode

up to 250 kbit/sec (DMX Support) integrated with UARTs

? Enhanced Serial Peripheral Interface (SPI) controller

? I

2

C controller which supports Master/Slave modes

? One 16-bit timer with 3 functional modes

? Three enhanced 16-bit timers with Capture, Compare, and PWM capability

? One additional basic 16-bit timer with interrupt (shared as UART Baud Rate Generator)

? 16-bit Multi-Channel Timer which supports four Capture/Compare/PWM modules

? Watchdog Timer (WDT)

? 26 to 36 General-Purpose Input/Output (GPIO) pins, depending upon package

? Up to 30 interrupt sources with up to 23 interrupt vectors

? On-Chip Debugger (OCD)

? Power-On Reset (POR) and Voltage Brown-Out (VBO) protection

? Built-in Low-Voltage Detection (LVD) with programmable voltage threshold

? Low Frequency Crystal Oscillator (LFXO) operating at 32.768 kHz with low power

consumption

? Internal clock sources and clock multiplication including: Internal Precision Oscillator

(IPO), Digitally Controlled Oscillator (DCO), Watchdog Timer Oscillator (WTO) and

Frequency Locked Loop (FLL)

? Wide operation voltage range: 1.8 V–3.6 V

? 32-, and 44-pin packages

? –40°C to +85°C (extended) operating temperature range