
2007 Microchip Technology Inc.
DS39629C-page 9
PIC18F6390/6490/8390/8490
TABLE 1-1:
DEVICE FEATURES
Features
PIC18F6390
PIC18F6490
PIC18F8390
PIC18F8490
Operating Frequency
DC – 40 MHz
Program Memory (Bytes)
8K
16K
8K
16K
Program Memory (Instructions)
4096
8192
4096
8192
Data Memory (Bytes)
768
Interrupt Sources
22
I/O Ports
Ports A, B, C, D, E,
F, G
Ports A, B, C, D, E,
F, G
Ports A, B, C, D, E,
F, G, H, J
Ports A, B, C, D, E,
F, G, H, J
Number of Pixels the LCD Driver
can Drive
128 (32 SEGs x
4 COMs)
128 (32 SEGs x
4 COMs)
192 (48 SEGs x
4 COMs)
192 (48 SEGs x
4 COMs)
Timers
44
Capture/Compare/PWM Modules
2
Serial Communications
MSSP, AUSART
Enhanced USART
MSSP, AUSART
Enhanced USART
MSSP, AUSART
Enhanced USART
MSSP, AUSART
Enhanced USART
10-Bit Analog-to-Digital Module
12 Input Channels 12 Input Channels 12 Input Channels 12 Input Channels
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 Low-Voltage Detect
Yes
Programmable Brown-out Reset
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
64-Pin TQFP
80-Pin TQFP