PIC18LF8410T-I/PT【PDF 2/411 页】IC PIC MCU FLASH 8KX16 80TQFP

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PIC18F6310/6410/8310/8410

DS39635C-page 10

2010 Microchip Technology Inc.

1.2

Other Special Features

Memory Endurance: The Flash cells for program

memory are rated to last for approximately a

thousand erase/write cycles. Data retention

without refresh is conservatively estimated to be

greater than 100 years.

External Memory Interface: For those

applications where more program or data storage

is needed, the PIC18F8310/8410 devices provide

the ability to access external memory devices.

The memory interface is configurable for both

8-bit and 16-bit data widths and uses a standard

range of control signals to enable communication

with a wide range of memory devices. With their

21-bit program counters, the 80-pin devices can

access a linear memory space of up to 2 Mbytes.

Extended Instruction Set: The

PIC18F6310/6410/8310/8410 family introduces

an optional extension to the PIC18 instruction set,

which adds 8 new instructions and an Indexed

Addressing mode. This extension, enabled as a

device configuration option, has been specifically

designed to optimize re-entrant application code

originally developed in high-level languages such

as ‘C’.

Enhanced Addressable USART: This serial

communication module is capable of standard

RS-232 operation and provides support for the

LIN/J2602 bus protocol. Other enhancements

include Automatic Baud Rate Detection (ABD) and

a 16-bit Baud Rate Generator for improved

resolution. When the microcontroller is using the

internal oscillator block, the EUSART provides

stable operation for applications that talk to the

outside world, without using an external crystal (or

its accompanying power requirement).

10-Bit A/D Converter: This module incorporates

programmable acquisition time, allowing for a

channel to be selected and a conversion to be

initiated without waiting for a sampling period, and

thus, reduces code overhead.

Extended Watchdog Timer (WDT): This

enhanced version incorporates a 16-bit prescaler,

allowing a time-out range from 4 ms to over

2 minutes that is stable across operating voltage

and temperature.

1.3

Details on Individual Family

Members

Devices in the PIC18F6310/6410/8310/8410 family are

available in 64-pin (PIC18F6310/8310) and 80-pin

(PIC18F6410/8410) packages. Block diagrams for the

two groups are shown in Figure 1-1 and Figure 1-2,

respectively.

The devices are differentiated from each other in three

ways:

Flash Program Memory: 8 Kbytes in PIC18FX310

devices, 16 Kbytes in PIC18FX410 devices.

I/O Ports: 7 bidirectional ports on 64-pin

devices, 9 bidirectional ports on 80-pin devices.

External Memory Interface: present on 80-pin

devices only.

All other features for devices in this family are identical.

These are summarized in Table 1-1.

The pinouts for all devices are listed in Table 1-2 and

Table 1-3.

Like all Microchip PIC18 devices, members of the

PIC18F6310/6410/8310/8410 family are available as

both standard and low-voltage devices. Standard

devices with Flash memory, designated with an “F” in

the part number (such as PIC18F6310), accommodate

an operating VDD range of 4.2V to 5.5V. Low-voltage

parts, designated by “LF” (such as PIC18LF6410),

function over an extended VDD range of 2.0V to 5.5V.

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