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