PIC18F16Q20T-I/REB

The PIC18-Q20 microcontroller family is one of the smallest PIC18 product families in 14/20-pin devices, designed for sensor interface, real-time control, and communication applications. This family features an enhanced I3C target module with higher communication rates, along with a 10-bit 300 ksps ADC with computation for responsive sensor designs. The family offers a Multi-Voltage I/O (MVIO) interface, where multiple pins are powered by VDDIO2 and VDDIO3, allowing these pins to operate in a different voltage domain from the rest of the microcontroller. It also includes an 8-bit signal routing port module that enables interconnection of digital peripherals without using external pins. Additional features include a fixed-latency vectored interrupt controller for interrupt handling, a system bus arbiter, DMA capability, two UARTs with asynchronous mode support (the full-featured UART supports the DMX and DALI lighting control standards as well as the LIN protocol), dedicated SPI and I²C modules, and a programmable 32-bit CRC with memory scan. The family also incorporates Memory Access Partition (MAP) with a user-configurable one-time programmable Storage Area Flash (SAF) to support user bootloader applications. Additionally, a dedicated 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, minimum instruction cycle 62.5 ns
• 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
• Vectored interrupt capability: selectable high/low priority; fixed three-instruction-cycle interrupt latency; programmable vector table base address; backward compatible with previous interrupt capability
• 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 between watchdog clear events being too long or too short; variable prescaler selection; variable window size selection