PIC24FJ256GA110 FAMILY
• Doze Mode Operation: When timing-sensitive
applications, such as serial communications,
require the uninterrupted operation of peripherals,
the CPU clock speed can be selectively reduced,
allowing incremental power savings without
missing a beat.
1.0
DEVICE OVERVIEW
This document contains device-specific information for
the following devices:
• PIC24FJ64GA106
• PIC24FJ128GA106
• PIC24FJ192GA106
• PIC24FJ256GA106
• PIC24FJ64GA108
• PIC24FJ128GA108
• PIC24FJ192GA108
• PIC24FJ256GA108
• PIC24FJ64GA110
• PIC24FJ128GA110
• PIC24FJ192GA110
• PIC24FJ256GA110
• Instruction-Based Power-Saving Modes: The
microcontroller can suspend all operations, or
selectively shut down its core while leaving its
peripherals active, with a single instruction in
software.
1.1.3
OSCILLATOR OPTIONS AND
FEATURES
All of the devices in the PIC24FJ256GA110 family offer
five different oscillator options, allowing users a range
of choices in developing application hardware. These
include:
This family expands on the existing line of Microchip‘s
16-bit general purpose microcontrollers, combining
enhanced computational performance with an
expanded and highly configurable peripheral feature
set. The PIC24FJ256GA110 family provides a new
platform for high-performance applications, which have
outgrown their 8-bit platforms, but don’t require the
power of a digital signal processor.
• Two Crystal modes using crystals or ceramic
resonators.
• Two External Clock modes offering the option of a
divide-by-2 clock output.
• A Fast Internal Oscillator (FRC) with a nominal
8 MHz output, which can also be divided under
software control to provide clock speeds as low as
31 kHz.
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. The PIC24F CPU core
offers a wide range of enhancements, such as:
• A Phase Lock Loop (PLL) frequency multiplier
available to the external oscillator modes and the
FRC Oscillator, which allows clock speeds of up
to 32 MHz.
• 16-bit data and 24-bit address paths with the
ability to move information between data and
memory spaces
• A separate internal RC Oscillator (LPRC) with a
fixed 31 kHz output, which provides a low-power
option for timing-insensitive applications.
• Linear addressing of up to 12 Mbytes (program
space) and 64 Kbytes (data)
The internal oscillator block also provides a stable
reference source for the Fail-Safe Clock Monitor. This
option constantly monitors the main clock source
against a reference signal provided by the internal
oscillator and enables the controller to switch to the
internal oscillator, allowing for continued low-speed
operation or a safe application shutdown.
• 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’
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, or even in jumping from 64-pin to 100-pin
devices.
• Operational performance up to 16 MIPS
1.1.2
POWER-SAVING TECHNOLOGY
All of the devices in the PIC24FJ256GA110 family
incorporate a range of features that can significantly
reduce power consumption during operation. Key
items include:
The PIC24F family is pin-compatible with devices in the
dsPIC33 and PIC32 families, and shares some
compatibility with the pinout schema for PIC18 and
dsPIC30 devices. This extends the ability of applica-
tions to grow from the relatively simple, to the powerful
and complex, yet still selecting a Microchip device.
• On-the-Fly Clock Switching: The device clock
can be changed under software control to the
Timer1 source or the internal, low-power RC
Oscillator during operation, allowing the user to
incorporate power-saving ideas into their software
designs.
2010 Microchip Technology Inc.
DS39905E-page 9
MICROCHIP [ MICROCHIP ]
