Microchip PIC24FJ32GA004 Manual

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PIC24FJXXXGA0XX

1.0 DEVICE OVERVIEW

This document defines the programming specification

for the PIC24FJXXXGA0XX family of 16-bit micro-

controller devices. This programming specification is

required only for those developing programming support

for the PIC24FJXXXGA0XX family. Customers using

only one of these devices should use development

tools that already provide support for device

programming.

This specification includes programming specifications

for the following devices:

2.0 PROGRAMMING OVERVIEW

OF THE PIC24FJXXXGA0XX

FAMILY

There are two methods of programming the

PIC24FJXXXGA0XX family of devices discussed in

this programming specification. They are:

• In-Circuit Serial Programming™ (ICSP™)

• Enhanced In-Circuit Serial Programming

(Enhanced ICSP)

The ICSP programming method is the most direct

method to program the device; however, it is also the

slower of the two methods. It provides native, low-level

programming capability to erase, program and verify

the chip.

The Enhanced In-Circuit Serial Programming

(Enhanced ICSP) protocol uses a faster method that

takes advantage of the programming executive, as

illustrated in Figure 2-1. The programming executive

provides all the necessary functionality to erase, pro-

gram and verify the chip through a small command set.

The command set allows the programmer to program

the PIC24FJXXXGA0XX devices without having to

deal with the low-level programming protocols of the

chip.

FIGURE 2-1: PROGRAMMING SYSTEM

OVERVIEW FOR

ENHANCED ICSP™

This specification is divided into major sections that

describe the programming methods independently.

Section 4.0 “Device Programming – Enhanced

ICSP” describes the Run-Time Self-Programming

(RTSP) method. Section 3.0 “Device Programming –

ICSP” describes the In-Circuit Serial Programming

method.

2.1 Power Requirements

All devices in the PIC24FJXXXGA0XX family are dual

voltage supply designs: one supply for the core and

peripherals and another for the I/O pins. A regulator is

provided on-chip to alleviate the need for two external

voltage supplies.

All of the PIC24FJXXXGA0XX devices power their core

digital logic at a nominal 2.5V. To simplify system

design, all devices in the PIC24FJXXXGA0XX family

incorporate an on-chip regulator that allows the device

to run its core logic from VDD.

• PIC24FJ16GA002 • PIC24FJ96GA006

• PIC24FJ16GA004 • PIC24FJ96GA008

• PIC24FJ32GA002 • PIC24FJ96GA010

• PIC24FJ32GA004 • PIC24FJ128GA006

• PIC24FJ48GA002 • PIC24FJ128GA008

• PIC24FJ48GA004 • PIC24FJ128GA010

• PIC24FJ64GA002

• PIC24FJ64GA004

• PIC24FJ64GA006

• PIC24FJ64GA008

• PIC24FJ64GA010

PIC24FJXXXGA0XX

Programmer Programming

Executive

On-Chip Memory

PIC24FJXXXGA0XX Flash Programming Specification

PIC24FJXXXGA0XX

The regulator provides power to the core from the other

VDD pins. A low-ESR capacitor (such as tantalum) must

be connected to the VDDCORE pin (Figure 2-2 and

Figure 2-3). This helps to maintain the stability of the

regulator. The specifications for core voltage and capac-

itance are listed in Section 7.0 “AC/DC Characteristics

and Timing Requirements”.

FIGURE 2-2: CONNECTIONS FOR THE

ON-CHIP REGULATOR

(64/80/100-PIN DEVICES)

FIGURE 2-3: CONNECTIONS FOR THE

ON-CHIP REGULATOR

(28/44-PIN DEVICES)

VDD

ENVREG

VDDCORE/VCAP

VSS

PIC24FJXXXGA0XX

CEFC

3.3V

Regulator Enabled (ENVREG tied to VDD):

(10 μF typ)

Note 1: These are typical operating voltages. Refer

Section 7.0 “AC/DC Characteristics and

Timing Requirements”

for the full operating

ranges of VDD and VDDCORE.

VDD

ENVREG

VDDCORE/VCAP

VSS

PIC24FJXXXGA0XX

3.3V(1)

2.5V(1)

Regulator Disabled (ENVREG tied to ground):

VDD

ENVREG

VDDCORE/VCAP

VSS

PIC24FJXXXGA0XX

2.5V(1)

Regulator Disabled (VDD tied to VDDCORE):

VDD

DISVREG

VDDCORE/VCAP

VSS

PIC24FJXXXGA0XX

3.3V(1)

2.5V (1)

Regulator Disabled (DISVREG tied to VDD):

VDD

DISVREG

VDDCORE/VCAP

VSS

PIC24FJXXXGA0XX

2.5V(1)

Regulator Disabled (VDD tied to VDDCORE):

VDD

DISVREG

VDDCORE/VCAP

VSS

PIC24FJXXXGA0XX

CEFC

3.3V

(10 μF typ)

Regulator Enabled (DISVREG tied to V SS):

Note 1: These are typical operating voltages. Refer

Section 7.0 “AC/DC Characteristics and

Timing Requirements”

for the full operating

ranges of VDD and VDDCORE.

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	PIC24FJ32GA004

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