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PIC18LF45K22 Datasheet(PDF) 1 Page - Microchip Technology

Part # PIC18LF45K22
Description  Flash Memory Programming Specification
Download  42 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18LF45K22 Datasheet(HTML) 1 Page - Microchip Technology

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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 VDD 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 VDD
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/
VPP/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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