Datasheet

© 2008 Microchip Technology Inc. DS39626E-page 9
PIC18F2525/2620/4525/4620
TABLE 1-1: DEVICE FEATURES
Features PIC18F2525 PIC18F2620 PIC18F4525 PIC18F4620
Operating Frequency DC – 40 MHz DC – 40 MHz DC – 40 MHz DC – 40 MHz
Program Memory (Bytes) 49152 65536 49152 65536
Program Memory (Instructions) 24576 32768 24576 32768
Data Memory (Bytes) 3968 3968 3968 3968
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 2 2 1 1
Enhanced Capture/Compare/
PWM Modules
0011
Serial Communications MSSP,
Enhanced USART
MSSP,
Enhanced USART
MSSP,
Enhanced USART
MSSP,
Enhanced USART
Parallel Communications (PSP) No No Yes Yes
10-Bit Analog-to-Digital Module 10 Input Channels 10 Input Channels 13 Input Channels 13 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 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 SPDIP
28-Pin SOIC
28-Pin SPDIP
28-Pin SOIC
40-Pin PDIP
44-Pin QFN
44-Pin TQFP
40-Pin PDIP
44-Pin QFN
44-Pin TQFP