PIC18F6525/6621/8525/8621
3. I/O ports (7 on PIC18F6525/6621 devices; 9 on
PIC18F8525/8621 devices).
1.2
Details on Individual Family
Members
4. External program memory interface (present
only on PIC18F8525/8621 devices)
The PIC18F6525/6621/8525/8621 devices are avail-
able in 64-pin (PIC18F6525/6621) and 80-pin
(PIC18F8525/8621) packages. They are differentiated
from each other in four ways:
All other features for devices in the PIC18F6525/6621/
8525/8621 family are identical. These are summarized
in Table 1-1.
1. Flash program memory (48 Kbytes for
PIC18F6525/8525 devices; 64 Kbytes for
PIC18F6621/8621 devices).
Block diagrams of the PIC18F6525/6621 and
PIC18F8525/8621 devices are provided in Figure 1-1
and Figure 1-2, respectively. The pinouts for these
device families are listed in Table 1-2.
2. A/D channels (12 for PIC18F6525/6621
devices; 16 for PIC18F8525/8621 devices).
TABLE 1-1:
PIC18F6525/6621/8525/8621 DEVICE FEATURES
Features
PIC18F6525
PIC18F6621
PIC18F8525
PIC18F8621
Operating Frequency
Program Memory (Bytes)
Program Memory (Instructions)
Data Memory (Bytes)
Data EEPROM Memory (Bytes)
External Memory Interface
Interrupt Sources
DC – 40 MHz
48K
DC – 40 MHz
64K
DC – 40 MHz
48K
DC – 40 MHz
64K
24576
3840
32768
3840
24576
3840
32768
3840
1024
1024
1024
1024
No
No
Yes
Yes
17
17
17
17
I/O Ports
Ports A, B, C, D,
E, F, G
Ports A, B, C, D, Ports A, B, C, D, E, Ports A, B, C, D, E,
E, F, G
F, G, H, J
F, G, H, J
Timers
5
2
3
5
2
3
5
2
3
5
2
3
Capture/Compare/PWM Modules
Enhanced Capture/Compare/
PWM Module
Serial Communications
MSSP,
MSSP,
MSSP,
MSSP,
Addressable
EUSART (2)
Addressable
EUSART (2)
Addressable
EUSART (2)
Addressable
EUSART (2)
Parallel Communications
10-bit Analog-to-Digital Module
Resets (and Delays)
PSP
PSP
PSP
PSP
12 input channels 12 input channels 16 input channels 16 input channels
POR, BOR, POR, BOR, POR, BOR, POR, BOR,
RESETInstruction, RESETInstruction, RESETInstruction, RESETInstruction,
Stack Full,
Stack Underflow
(PWRT, OST)
Stack Full,
Stack Underflow
(PWRT, OST)
Stack Full,
Stack Underflow
(PWRT, OST)
Stack Full,
Stack Underflow
(PWRT, OST)
Programmable Low-Voltage
Detect
Yes
Yes
Yes
Yes
Programmable Brown-out Reset
Instruction Set
Yes
Yes
Yes
Yes
77 Instructions
64-pin TQFP
77 Instructions
64-pin TQFP
77 Instructions
80-pin TQFP
77 Instructions
80-pin TQFP
Package
DS39612B-page 8
2005 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
