PIC18F2420/2520/4420/4520
TABLE 1-1:
Operating Frequency
Program Memory (Bytes)
Program Memory
(Instructions)
Data Memory (Bytes)
Data EEPROM Memory (Bytes)
Interrupt Sources
I/O Ports
Timers
Capture/Compare/PWM Modules
Enhanced
Capture/Compare/PWM Modules
Serial Communications
Parallel Communications (PSP)
10-Bit Analog-to-Digital Module
Resets (and Delays)
DEVICE FEATURES
PIC18F2420
DC – 40 MHz
16384
8192
768
256
19
Ports A, B, C, (E)
4
2
0
MSSP,
Enhanced USART
No
10 Input Channels
PIC18F2520
DC – 40 MHz
32768
16384
1536
256
19
Ports A, B, C, (E)
4
2
0
MSSP,
Enhanced USART
No
10 Input Channels
PIC18F4420
DC – 40 MHz
16384
8192
768
256
20
Ports A, B, C, D, E
4
1
1
MSSP,
Enhanced USART
Yes
13 Input Channels
PIC18F4520
DC – 40 MHz
32768
16384
1536
256
20
Ports A, B, C, D, E
4
1
1
MSSP,
Enhanced USART
Yes
13 Input Channels
Features
POR, BOR,
POR, BOR,
POR, BOR,
POR, BOR,
RESET
Instruction,
RESET
Instruction,
RESET
Instruction,
RESET
Instruction,
Stack Full, Stack
Stack Full, Stack
Stack Full, Stack
Stack Full, Stack
Underflow (PWRT, OST), Underflow (PWRT, OST), Underflow (PWRT, OST), Underflow (PWRT, OST),
MCLR (optional), WDT
MCLR (optional), WDT
MCLR (optional), WDT
MCLR (optional), WDT
Yes
Yes
75 Instructions;
83 with Extended
Instruction Set Enabled
28-Pin SPDIP
28-Pin SOIC
28-Pin QFN
Yes
Yes
75 Instructions;
83 with Extended
Instruction Set Enabled
28-Pin SPDIP
28-Pin SOIC
28-Pin QFN
Yes
Yes
75 Instructions;
83 with Extended
Instruction Set Enabled
40-Pin PDIP
44-Pin QFN
44-Pin TQFP
Yes
Yes
75 Instructions;
83 with Extended
Instruction Set Enabled
40-Pin PDIP
44-Pin QFN
44-Pin TQFP
Programmable
High/Low-Voltage Detect
Programmable Brown-out Reset
Instruction Set
Packages
©
2008 Microchip Technology Inc.
DS39631E-page 9
MICROCHIP [ MICROCHIP TECHNOLOGY ]
