PIC24FJ128GL306 datasheet(15/424 Pages) MICROCHIP

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DS30010198B-page 15

PIC24FJ128GL306 FAMILY

1.0

DEVICE OVERVIEW

This document contains device-specific information for

the following devices:

The PIC24FJ128GL306 family introduces eXtreme

low-power microcontrollers with LCD controller in low pin

count packages. This is a 16-bit microcontroller family

with a broad peripheral feature set and enhanced

computational performance. This family also offers a

new migration option for those high-performance

applications which may be outgrowing their 8-bit

platforms, but do not require the numerical processing

power of a Digital Signal Processor (DSP).

Table 1-1 lists the functions of the various pins shown

in the pinout diagrams.

1.1

Core Features

1.1.1

16-BIT ARCHITECTURE

Central to all PIC24F devices is the 16-bit modified

Harvard architecture, first introduced with Microchip’s

dsPIC® Digital Signal Controllers (DSCs). The PIC24F

CPU core offers a wide range of enhancements,

such as:

• 16-bit data and 24-bit address paths with the

ability to move information between data and

memory spaces

• Linear addressing of up to 12 Mbytes

(program space) and 32 Kbytes (data)

• A 16-element Working register array with built-in

software stack support

• A 17 x 17 hardware multiplier with support for

integer math

• Hardware support for 32 by 16-bit division

• An instruction set that supports multiple

addressing modes and is optimized for high-level

languages, such as ‘C’

• Operational performance up to 16 MIPS

1.1.2

POWER-SAVING TECHNOLOGY

The PIC24FJ128GL306 family of devices includes

Retention Sleep, a low-power mode with essential

circuits being powered from a separate low-voltage

regulator.

This new low-power mode also supports the continuous

operation of the low-power, on-chip Real-Time Clock/

Calendar (RTCC), making it possible for an application

to keep time while the device is otherwise asleep.

Aside from this new feature, PIC24FJ128GL306 family

devices also include all of the legacy power-saving

features of previous PIC24F microcontrollers, such as:

• On-the-Fly Clock Switching, allowing the selection

of a lower power clock during run time

• Doze Mode Operation, for maintaining peripheral

clock speed while slowing the CPU clock

• Instruction-Based Power-Saving Modes, for quick

invocation of the Idle and Sleep modes

1.1.3

OSCILLATOR OPTIONS AND

FEATURES

All of the devices in the PIC24FJ128GL306 family offer

six different oscillator options, allowing users a range of

choices in developing application hardware. These

include:

• Two Crystal modes

• External Clock (EC) mode

• A Phase-Locked Loop (PLL) frequency multiplier,

which allows processor speeds up to 32 MHz

• An internal Fast RC Oscillator (FRC), a nominal

8 MHz output with multiple frequency divider options

• A separate internal Low-Power RC Oscillator

(LPRC), 32 kHz nominal for low-power,

timing-insensitive applications.

The internal oscillator block also provides a stable

reference source for the Fail-Safe Clock Monitor (FSCM).

This option constantly monitors the main clock source

against a reference signal provided by the internal oscil-

lator and enables the controller to switch to the internal

oscillator, allowing for continued low-speed operation

or a safe application shutdown.

1.1.4

EASY MIGRATION

Regardless of the memory size, all devices share the

same rich set of peripherals, allowing for a smooth

migration path as applications grow and evolve. The

consistent pinout scheme used throughout the entire

family also aids in migrating from one device to the next

larger device.

• PIC24FJ128GL306

• PIC24FJ64GL306

• PIC24FJ128GL305

• PIC24FJ64GL305

• PIC24FJ128GL303

• PIC24FJ64GL303

• PIC24FJ128GL302

• PIC24FJ64GL302

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