Datasheet

© 2009 Microchip Technology Inc. DS39761C-page 11
PIC18F2682/2685/4682/4685
TABLE 1-1: DEVICE FEATURES
Features PIC18F2682 PIC18F2685 PIC18F4682 PIC18F4685
Operating Frequency DC – 40 MHz DC – 40 MHz DC – 40 MHz DC – 40 MHz
Program Memory (Bytes) 80K 96K 80K 96K
Program Memory (Instructions) 40960 49152 40960 49152
Data Memory (Bytes) 3328 3328 3328 3328
Data EEPROM Memory (Bytes) 1024 1024 1024 1024
Interrupt Sources 19 19 20 20
I/O Ports Ports A, B, C, (E) Ports A, B, C, (E) Ports A, B, C, D, E Ports A, B, C, D, E
Timers 4 4 4 4
Capture/Compare/PWM Modules 1 1 1 1
Enhanced Capture/
Compare/PWM Modules
0011
ECAN Module 1 1 1 1
Serial Communications MSSP,
Enhanced USART
MSSP,
Enhanced USART
MSSP,
Enhanced USART
MSSP,
Enhanced USART
Parallel Slave Port
Communications (PSP)
No No Yes Yes
10-bit Analog-to-Digital Module 8 Input Channels 8 Input Channels 11 Input Channels 11 Input Channels
Comparators 0 0 2 2
Resets (and Delays) POR, BOR,
RESET Instruction,
Stack Full,
Stack Underflow
(PWRT, OST),
MCLR
(optional),
WDT
POR, BOR,
RESET Instruction,
Stack Full,
Stack Underflow
(PWRT, OST),
MCLR
(optional),
WDT
POR, BOR,
RESET Instruction,
Stack Full,
Stack Underflow
(PWRT, OST),
MCLR
(optional),
WDT
POR, BOR,
RESET Instruction,
Stack Full,
Stack Underflow
(PWRT, OST),
MCLR
(optional),
WDT
Programmable High/Low-Voltage
Detect
Yes Yes Yes Yes
Programmable Brown-out Reset Yes Yes Yes Yes
Instruction Set 75 Instructions;
83 with Extended
Instruction Set
Enabled
75 Instructions;
83 with Extended
Instruction Set
Enabled
75 Instructions;
83 with Extended
Instruction Set
Enabled
75 Instructions;
83 with Extended
Instruction Set
Enabled
Packages 28-pin PDIP
28-pin SOIC
28-pin PDIP
28-pin SOIC
40-pin PDIP
44-pin QFN
44-pin TQFP
40-pin PDIP
44-pin QFN
44-pin TQFP