Datasheet

 2010-2012 Microchip Technology Inc. DS39977F-page 603
PIC18F66K80 FAMILY
TABLE B-2: NOTABLE DIFFERENCES BETWEEN 64-PIN DEVICES – PIC18F66K80 AND
PIC18F8680 FAMILIES
Characteristic PIC18F66K80 Family PIC18F8680 Family
Max Operating Frequency 64 MHz 40 MHz
Max Program Memory 64K 64K
Data Memory (bytes) 3,648 3,328
CTMU Yes No
SOSC Oscillator Options Low-power oscillator option for SOSC No options
T1CKI Clock T1CKI can be used as a clock without
enabling the SOSC oscillator
No
INTOSC Up to 16 MHz No Internal Oscillator
SPI/I
2
C™ 1 Module 1 Module
Timers Two 8-bit, Three 16-bit Two 8-bit, Three 16-bit
ECCP 1 1
CCP 4 1
Data EEPROM (bytes) 1,024 1,024
WDT Prescale Options 22 16
5V Operation 18FXXK80 parts – 5V operation
18LFXXK80 parts – 3.3V operation
Yes
nanoWatt XLP Yes No
On-Chip 3.3V Regulator 18FXXK80 parts – Yes
18LFXXK80 parts – No
No
Low-Power BOR Yes No
A/D Converter 12-bit signed differential 10-bit
A/D Channels 15 Channels 12 Channels
Internal Temp Sensor Yes No
EUSART Two One
Comparators Two Two
Oscillator Options 14 Seven
Ultra Low-Power Wake-up (ULPW) Yes No
Adjustable Slew Rate for I/O Yes No
PLL Available for all oscillator options Available for only high-speed crystal and
external oscillator
Data Signal Modulator Yes No