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PIC18F2XXX/4XXX FAMILY

1.0DEVICE OVERVIEW

This document includes the programming specifications for the following devices:

2.0PROGRAMMING OVERVIEW

PIC18F2XXX/4XXX Family 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 user’s 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 PIC18F2XXX/4XXX Family devices in all package types.

2.1Hardware Requirements

In High-Voltage ICSP mode, PIC18F2XXX/4XXX Family devices require two programmable power supplies: one for

VDDand 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 hardware parameters.

2.1.1LOW-VOLTAGE ICSP PROGRAMMING

In Low-Voltage ICSP mode, PIC18F2XXX/4XXX Family devices can be programmed using a VDDsource 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 6.0 “AC/DC Characteristics Timing Requirements for Program/Verify

Test Mode”for additional hardware parameters.

2.2Pin Diagrams

The pin diagrams for the PIC18F2XXX/4XXX Family are shown in Figure 2-1, Figure 2-2, Figure 2-3, Figure 2-4,

Figure 2-5.

•PIC18F2221 •PIC18F2580 •PIC18F4480

•PIC18F2321 •PIC18F2585 •PIC18F4510

•PIC18F2410 •PIC18F2610 •PIC18F4515

•PIC18F2420 •PIC18F2620 •PIC18F4520

•PIC18F2423 •PIC18F2680 •PIC18F4523

•PIC18F2450 •PIC18F2682 •PIC18F4525

•PIC18F2455 •PIC18F2685 •PIC18F4550

•PIC18F2458 •PIC18F4221 •PIC18F4553

•PIC18F2480 •PIC18F4321 •PIC18F4580

•PIC18F2510 •PIC18F4410 •PIC18F4585

•PIC18F2515 •PIC18F4420 •PIC18F4610

•PIC18F2520 •PIC18F4423 •PIC18F4620

•PIC18F2523 •PIC18F4450 •PIC18F4680

•PIC18F2525 •PIC18F4455 •PIC18F4682

•PIC18F2550 •PIC18F4458 •PIC18F4685

• PIC18F2553

Flash Microcontroller Programming Specification

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