Datasheet > LF182X

LF182X

更新时间： 2024-10-19 05:41:51

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描述
PIC16F/LF182X/PIC12F/LF1822 Memory Programming Specification

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LF182X 数据手册

PIC16F/LF182X/PIC12F/LF1822

PIC16F/LF182X/PIC12F/LF1822 Memory Programming Specification

1.1.2

LOW-VOLTAGE ICSP

PROGRAMMING

This document includes the

programming specifications for the

following devices:

In Low-Voltage ICSP™ mode, these devices can be

programmed using a single VDD source in the

operating range. The MCLR/VPP pin does not have to

be brought to a different voltage, but can instead be left

at the normal operating voltage.

• PIC12F1822 • PIC12LF1822

• PIC16F1823 • PIC16LF1823

• PIC16F1824 • PIC16LF1824

• PIC16F1825 • PIC16LF1825

• PIC16F1826 • PIC16LF1826

• PIC16F1827 • PIC16LF1827

• PIC16F1828 • PIC16LF1828

• PIC16F1829 • PIC16LF1829

1.1.2.1

Single-Supply ICSP Programming

The LVP bit in Configuration Word 2 enables single-

supply (low-voltage) ICSP programming. The LVP bit

defaults to a ‘1’ (enabled) from the factory. The LVP bit

may only be programmed to ‘0’ by entering the High-

Voltage ICSP mode, where the MCLR/VPP pin is raised

to VIHH. Once the LVP bit is programmed to a ‘0’, only

the High-Voltage ICSP mode is available and only the

High-Voltage ICSP mode can be used to program the

device.

1.0

OVERVIEW

The PIC16F/LF182X and PIC12F/LF1822 devices can

be programmed using either the high-voltage In-Circuit

Serial Programming™ (ICSP™) method or the low-

voltage ICSP™ method.

Note 1: The High-Voltage ICSP mode is always

available, regardless of the state of the

LVP bit, by applying VIHH to the

MCLR/VPP pin.

1.1

Hardware Requirements

2: While in Low-Voltage ICSP mode, MCLR

is always enabled, regardless of the

MCLRE bit, and the port pin can no longer

be used as a general purpose input.

1.1.1

HIGH-VOLTAGE ICSP

PROGRAMMING

In High-Voltage ICSP™ mode, these devices require

two programmable power supplies: one for VDD and

one for the MCLR/VPP pin.

 2010 Microchip Technology Inc.

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DS41390C-page 1

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