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