Low-power 8-bit MCU family is feature rich

Microchip PIC18F "K22"

The PIC18F K22 MCU family of low-power, high-performance 8-bit microcontrollers provide features such as

operation from 1.8 to 5.5 V,
two SPI/I²C channels,
a 10- or 12-bit A/D converter,
and peripherals for capacitive touch-sensing.

They also feature

8 to 128 Kbytes of flash,
256 bits to 4 Kbytes of RAM,
one to ten PWMs,
up to 11 timers,
and sleep currents down to 20 nA.

The MCUs are available in PDIP, QFN, SOIC, SSOP, and TQFP packages with 20 to 80 pins. A complete suite of development tools is available including the MPLAB IDE and MPLAB C18 or Hi-Tech C compilers. (From $0.60 ea/high volume — available now.)

PIC18FXXK22 Flash Microcontrollers

Product	Program Memory (Bytes)	Data EEPROM (Bytes)	Data RAM (Bytes)	I/O Pins (Total)	ADC	Comparator	ECCP /CCP	Communication	Timers /WDT	SR Latch	Std. Operating Voltage	Package
PIC18F13K22	8	256	256	18	12×10b	2	1/0	1 -A/E/USART 1 -MSSP(SPI/I²C)	3-16b, 1-8b, WDT	Yes	1.8V - 5.5V	20/PDIP 20/QFN 20/SOIC 20/SSOP
PIC18F14K22	16	256	512	18	12×10b	2	1/0	1 -A/E/USART 1 -MSSP(SPI/I²C)	3-16b, 1-8b, WDT	Yes	1.8V - 5.5V	20/PDIP 20/QFN 20/SOIC 20/SSOP
PIC18F23K22	8	256	512	25	17	2	1/1	2 -A/E/USART 2 -MSSP(SPI/I²C)	3-16b, 1-8b, WDT	Yes	1.8V - 5.5V	28/QFN 28/SOIC 28/SPDIP 28/SSOP
PIC18F24K22	16	256	768	25	17	2	1/1	2 -A/E/USART 2 -MSSP(SPI/I²C)	3-16b, 1-8b, WDT	Yes	1.8V - 5.5V	28/QFN 28/SOIC 28/SPDIP 28/SSOP
PIC18F25K22	32	256	1536	25	17	2	3/2	2 -A/E/USART 2 -MSSP(SPI/I²C)	4-16b, 3-8b, WDT	Yes	1.8V - 5.5V	28/QFN 28/SOIC 28/SPDIP 28/SSOP
PIC18F26K22	64	1024	3896	25	17	2	3/2	0 -UART 2 -A/E/USART 2 -MSSP(SPI/I²C)	4-16b, 3-8b, WDT	Yes	1.8V - 5.5V	28/QFN 28/SOIC 28/SPDIP 28/SSOP
PIC18F43K22	8	256	512	36	28	2	1/1	2 -A/E/USART 2 -MSSP(SPI/I²C)	3-16b, 1-8b, WDT	Yes	1.8V - 5.5V	40/PDIP 44/QFN 44/TQFP
PIC18F44K22	16	256	768	36	28	2	1/1	2 -A/E/USART 2 -MSSP(SPI/I²C)	3-16b, 1-8b, WDT	Yes	1.8V - 5.5V	40/PDIP 44/QFN 44/TQFP
PIC18F45K22	32	256	1536	36	28	2	3/2	2 -A/E/USART 2 -MSSP(SPI/I²C)	4-16b, 3-8b, WDT	Yes	1.8V - 5.5V	40/PDIP 44/QFN 44/TQFP
PIC18F46K22	64	1024	3896	25	28	2	3/2	2 -A/E/USART 2 -MSSP(SPI/I²C)	4-16b, 3-8b, WDT	Yes	1.8V - 5.5V	40/PDIP 44/QFN 44/TQFP
PIC18F65K22	32	1024	2048	53	16	3	3/5	2 -A/E/USART 2 -MSSP(SPI/I²C)	4-16b, 4-8b, WDT	No	1.8V - 5.5V	64/TQFP 64/QFN
PIC18F66K22	64	1024	3862	53	16	3	3/7	2 -A/E/USART 2 -MSSP(SPI/I²C)	5-16b, 6-8b, WDT	No	1.8V - 5.5V	64/TQFP 64/QFN
PIC18F67K22	128	1024	3862	53	16	3	3/7	2 -A/E/USART 2 -MSSP(SPI/I²C)	5-16b, 6-8b, WDT	No	1.8V - 5.5V	64/TQFP 64/QFN
PIC18F85K22	32	1024	2048	69	24	3	3/5	2 -A/E/USART 2 -MSSP(SPI/I²C)	4-16b, 4-8b, WDT	No	1.8V - 5.5V	80/TQFP
PIC18F86K22	64	1024	3862	69	24	3	3/7	2 -A/E/USART 2 -MSSP(SPI/I²C)	5-16b, 6-8b, WDT	No	1.8V - 5.5V	80/TQFP
PIC18F87K22	128	1024	3862	69	24	3	3/7	0 -UART 2 -A/E/USART 2 -MSSP(SPI/I²C), 0 -SSP(SPI/I²C)	5-16b, 6-8b, WDT	No	1.8V - 5.5V	80/TQFP