PIC18F24J50 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18F24J50

28/44-Pin, Low-Power, High-Performance USB Microcontrollers with nanoWatt XLP Technology

Microchip Technology 

PIC18F46J50 FAMILY

2.0 GUIDELINES FOR GETTING

STARTED WITH PIC18FJ

MICROCONTROLLERS

2.1 Basic Connection Requirements

Getting started with the PIC18F46J50 family family of

8-bit microcontrollers requires attention to a minimal

set of device pin connections before proceeding with

development.

The following pins must always be connected:

• All VDD and VSS pins

(see Section 2.2 “Power Supply Pins”)

• All AVDD and AVSS pins (if present), regardless of

whether or not the analog device features are used

(see Section 2.2 “Power Supply Pins”)

• MCLR pin

(see Section 2.3 “Master Clear (MCLR) Pin”)

• VCAP/VDDCORE pin

(see Section 2.4 “Voltage Regulator Pins

(VCAP/VDDCORE)”)

These pins must also be connected if they are being

used in the end application:

• PGC/PGD pins used for In-Circuit Serial

Programming™ (ICSP™) and debugging purposes

(see Section 2.5 “ICSP Pins”)

• OSCI and OSCO pins when an external oscillator

source is used

(see Section 2.6 “External Oscillator Pins”)

Additionally, the following pins may be required:

• VREF+/VREF- pins are used when external voltage

reference for analog modules is implemented

Note:

The AVDD and AVSS pins must always be

connected, regardless of whether any of

the analog modules are being used.

The minimum mandatory connections are shown in

Figure 2-1.

FIGURE 2-1:

RECOMMENDED

MINIMUM CONNECTIONS

VDD

C2(2)

R1

R2

C1

C6(2)

MCLR

(3) (1)

VUSB

VCAP/VDDCORE

PIC18FXXJXX

VSS

VDD

VDD

VSS

C7

C3(2)

C5(2)

C4(2)

Key (all values are recommendations):

C1 through C6: 0.1 F, 20V ceramic

C7: 10 F, 6.3V or greater, tantalum or 10v or greater

ceramic

R1: 10 kΩ

R2: 100Ω to 470Ω

Note 1:

2:

3:

See Section 2.4 “Voltage Regulator Pins

(VCAP/VDDCORE)” for explanation of

VCAP/VDDCORE pin connections.

The example shown is for a PIC18F device

with five VDD/VSS and AVDD/AVSS pairs.

Other devices may have more or less pairs;

adjust the number of decoupling capacitors

appropriately.

See Section 22.2.2.1 “Internal Transceiver”.

 2011 Microchip Technology Inc.

DS39931D-page 29

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