48 MHz 8-bit core with XLP for battery-edge designs
The Microchip PIC18LF46K22-E/PT is an 8-bit PIC MCU from the PIC® XLP™ 18K family, built for applications that need a 48 MHz execution rate without burning through the battery. The supply range runs from 1.8V to 3.6V, so it plays nicely with a single Li-ion cell or a regulated 3.3V rail.
Peripheral set and memory — what fits on the die
On the peripheral side you get 35 I/O lines, a 30-channel 10-bit ADC, and serial connectivity covering I²C, SPI, and UART/USART.
44-TQFP — rework and footprint notes
The 0.8 mm pitch gives you a bit of breathing room under the hot-air station compared to finer-pitch QFPs — the pads are visible enough to align by eye if you have to hand-place a replacement.