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PIC18F24K22-I/SS 用户编程技术手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
SSOP-28
描述:
PIC18F2xK22/4xK22 8 位闪存微控制器### PIC18 微控制器
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PIC18F24K22-I/SS数据手册
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2010 Microchip Technology Inc. Advance Information DS41398B-page 1
PIC18(L)F2XK22/4XK22
1.0 DEVICE OVERVIEW
This document includes the programming
specifications for the following devices:
2.0 PROGRAMMING OVERVIEW
The PIC18(L)F2XK22/4XK22 devices can be
programmed using either the high-voltage In-Circuit
Serial Programming™ (ICSP™) method or the low-
voltage ICSP method. Both methods can be done with
the device in the users’ system. The low-voltage ICSP
method is slightly different than the high-voltage
method and these differences are noted where
applicable. This programming specification applies to
the PIC18(L)F2XK22/4XK22 devices in all package
types.
2.1 Hardware Requirements
In High-Voltage ICSP mode, the PIC18(L)F2XK22/
4XK22 devices require two programmable power
supplies: one for V
DD and one for MCLR/VPP/RE3.
Both supplies should have a minimum resolution of
0.25V. Refer to Section 6.0 “AC/DC Characteristics
Timing Requirements for Program/Verify Test
Mode” for additional information.
2.1.1 LOW-VOLTAGE ICSP
PROGRAMMING
In Low-Voltage ICSP mode, the PIC18(L)F2XK22/
4XK22 devices can be programmed using a single V
DD
source in the operating range. The MCLR/VPP/RE3
does not have to be brought to a different voltage, but
can instead be left at the normal operating voltage.
Refer to Section 2.6 “Entering and Exiting Low-
Voltage ICSP Program/Verify Mode” for additional
hardware parameters.
• PIC18F23K22 • PIC18LF23K22
• PIC18F24K22 • PIC18LF24K22
• PIC18F25K22 • PIC18LF25K22
• PIC18F26K22 • PIC18LF26K22
• PIC18F43K22 • PIC18LF43K22
• PIC18F44K22 • PIC18LF44K22
• PIC18F45K22 • PIC18LF45K22
• PIC18F46K22 • PIC18LF46K22
Note 1: The High-Voltage ICSP mode is always
available, regardless of the state of the
LVP bit, by applying VIHH to the MCLR/
V
PP/RE3 pin.
2: While in Low-Voltage ICSP mode, MCLR
is always enabled, regardless of the
MCLRE bit, and the RE3 pin can no
longer be used as a general purpose
input.
Flash Memory Programming Specification
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