PIC18F8525-E/PT【PDF 2/396 页】IC PIC MCU FLASH 24KX16 80TQFP

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PIC18F6525/6621/8525/8621

DS39612B-page 8

2005 Microchip Technology Inc.

1.2

Details on Individual Family

Members

The PIC18F6525/6621/8525/8621 devices are avail-

able

64-pin

(PIC18F6525/6621)

and

80-pin

(PIC18F8525/8621) packages. They are differentiated

from each other in four ways:

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).

I/O ports (7 on PIC18F6525/6621 devices; 9 on

PIC18F8525/8621 devices).

External program memory interface (present

only on 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

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.

TABLE 1-1:

PIC18F6525/6621/8525/8621 DEVICE FEATURES

Features

PIC18F6525

PIC18F6621

PIC18F8525

PIC18F8621

Operating Frequency

DC – 40 MHz

Program Memory (Bytes)

48K

64K

48K

64K

Program Memory (Instructions)

24576

32768

24576

32768

Data Memory (Bytes)

3840

Data EEPROM Memory (Bytes)

1024

External Memory Interface

Yes

Interrupt Sources

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

Timers

Capture/Compare/PWM Modules

Enhanced Capture/Compare/

PWM Module

Serial Communications

MSSP,

Addressable

EUSART (2)

MSSP,

Addressable

EUSART (2)

MSSP,

Addressable

EUSART (2)

MSSP,

Addressable

EUSART (2)

Parallel Communications

PSP

10-bit Analog-to-Digital Module

12 input channels

16 input channels

Resets (and Delays)

POR, BOR,

RESET

Instruction,

Stack Full,

Stack Underflow

(PWRT, OST)

POR, BOR,

RESET

Instruction,

Stack Full,

Stack Underflow

(PWRT, OST)

POR, BOR,

RESET

Instruction,

Stack Full,

Stack Underflow

(PWRT, OST)

POR, BOR,

RESET

Instruction,

Stack Full,

Stack Underflow

(PWRT, OST)

Programmable Low-Voltage

Detect

Yes

Programmable Brown-out Reset

Yes

Instruction Set

77 Instructions

Package

64-pin TQFP

80-pin TQFP

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