Datasheet > 16F57

16F57

更新时间： 2022-08-29 09:44:03

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
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4页	116K
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16F57 数据手册

DEVICE MIGRATIONS

SOFTWARE CHANGES

The PIC16F57 is mainly a technology process change

from the PIC16C57C 28-pin parts. There are some

changes that may affect older designs looking to use

the new parts. The changes are grouped into two

categories: those that affect hardware and those that

affect software. In most cases, an older design will

have little or no problems migrating to these new parts.

Flash Program Memory Code Protection

The Code Protect bits for the program memory have

changed from the PIC16C57C to the PIC16F57.

Configuration

bits

<11:4>

(CP)

are

now

unimplemented. They have been replaced with one

Configuration bit <3> (CP).

HARDWARE CHANGES

In-Circuit Serial Programming™ (ICSP™)

ICSP has been added allowing users to make use of

MPLAB^®ICD 2 for programming in addition to the

PRO MATE^®II and PICSTART^®Plus programmers.

Customers may also implement ICSP directly in their

application for programming “In-Line” during the

manufacturing process.

Operating Regions

The commercial temperature operating region has

been incorporated into the industrial temperature

region. Please see the voltage frequency graphs in the

data sheet for more information.

The “LF” operating region has been incorporated into

the “F” parts. Please see the voltage frequency graphs

in the data sheet for more information.

Four Word Programming

The PIC16F57 supports programming four words at a

time (i.e., only one program command is required for

every four load data word commands). This will help

reduce total programming time by a factor of four as

compared to single-word programming.

Process Differences

Because the PIC16F57 uses

a newer process

technology, there will be subtle behavior differences

between the PIC16C57C and the PIC16F57. Before

starting on a design migration, check the data sheets

and verify that the electrical specifications for the new

part are appropriate for your application.

DS41221A-page 2

Preliminary

 2003 Microchip Technology Inc.

123 4

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