PIC18F16Q20-I/REB

The PIC18-Q20 microcontroller family is one of the smallest PIC18 product families, offering 14/20-pin devices for sensor interface, real-time control, and communication applications. This family features an enhanced I3C target module with higher communication rates, as well as a 10-bit 300 ksps ADC with computational capabilities for responsive sensor designs. The family includes a Multi-Voltage I/O (MVIO) interface, with multiple pins powered by VDDIO2 and VDDIO3, allowing those pins to operate in voltage domains different from the rest of the microcontroller. The family also features an 8-bit Signal Routing Port module for interconnecting digital peripherals without using external pins. Additional features include a Vectored Interrupt Controller with fixed latency for interrupt handling, a system bus arbiter, DMA capability, UART supporting asynchronous, DMX, DALI, and LIN protocols, SPI, I²C, and a programmable 32-bit CRC with memory scan. The family also includes Memory Access Partition (MAP) and SAFLOCK to support bootloader applications. SAFLOCK enables one-time programming of the Storage Area Flash (SAF). The Device Information Area (DIA) stores factory-calibrated values to help improve temperature sensor accuracy.

Applications

• Sensor interface
• Real-time control
• Communications

Key features

• C compiler-optimized RISC architecture; operating speed: DC – 64 MHz clock input, 62.5 ns minimum instruction cycle
• Four DMA controllers: data transfer from program Flash, data EEPROM, or SFR/GPR space to SFR/GPR space; user-programmable source and destination size; hardware and software triggered data transfer supported
• Vectored interrupt capability: selectable high/low priority; fixed 3-instruction-cycle interrupt latency; programmable vector table base address; backward compatible with previous interrupt capabilities
• 128-level deep hardware stack
• Low-current Power-on Reset (POR)
• Configurable Power-up Timer (PWRT)
• Brown-out Reset (BOR)
• Low-Power Brown-out Reset (LPBOR) option
• Windowed Watchdog Timer (WwDT): watchdog reset on intervals too long or too short between watchdog clear events; selectable variable prescaler; selectable variable window size