PIC24FJ128GA MICROCHIP [Microchip Technology], PIC24FJ128GA Datasheet - Page 9

• Manufacturer Part Number: PIC24FJ128GA
• Description: General Purpose, 16-Bit Flash Microcontrollers
• Manufacturer: MICROCHIP [Microchip Technology]

1.0
This document contains device specific information for
the following devices:
• PIC24FJ64GA006
• PIC24FJ64GA008
• PIC24FJ64GA010
• PIC24FJ96GA006
• PIC24FJ96GA008
• PIC24FJ96GA010
• PIC24FJ128GA006
• PIC24FJ128GA008
• PIC24FJ128GA010
This family introduces a new line of Microchip devices:
a 16-bit RISC microcontroller family with a broad
peripheral feature set and enhanced computational
performance. The PIC24FJ128GA family offers a new
migration option for those high-performance applica-
tions which may be outgrowing their 8-bit platforms, but
don’t require the numerical processing power of a
digital signal processor.
1.1
1.1.1
Central to all PIC24 devices is the 16-bit modified
Harvard architecture, first introduced with Microchip’s
dsPIC
offers a wide range of enhancements, such as:
• 16-bit data and 24-bit address paths, with the
• Linear addressing of up to 8 Mbytes (program
• A 16-element working register array with built-in
• A 17 x 17 hardware multiplier with support for
• Hardware support for 32 by 16-bit division
• An instruction set that supports multiple
• Operational performance up to 16 MIPS
© 2006 Microchip Technology Inc.
ability to move information between data and
memory spaces
space) and 64 Kbytes (data)
software stack support
integer math
addressing modes and is optimized for high-level
languages such as ‘C’
®
digital signal controllers. The PIC24 CPU core
DEVICE OVERVIEW
Core Features
16-BIT ARCHITECTURE
Preliminary
PIC24FJ128GA FAMILY
1.1.2
All of the devices in the PIC24FJ128GA family incorpo-
rate a range of features that can significantly reduce
power consumption during operation. Key items
include:
• On-the-Fly Clock Switching: The device clock
• Doze Mode Operation: When timing-sensitive
• Instruction-Based Power-Saving Modes: The
1.1.3
All of the devices in the PIC24FJ128GA family offer five
different oscillator options, allowing users a range of
choices in developing application hardware. These
include:
• Two Crystal modes, using crystals or ceramic
• Two External Clock modes, offering the option of
• A Fast Internal Oscillator (FRC) with a nominal
• A Phase Lock Loop (PLL) frequency multiplier,
• A separate internal RC oscillator (LPRC) with a
The internal oscillator block also provides a stable ref-
erence 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.
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.
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.
microcontroller can suspend all operations, or
selectively shut down its core while leaving its
peripherals active, with a single instruction in
software.
resonators.
a divide-by-2 clock output.
8 MHz output, which can also be divided under
software control to provide clock speeds as low as
31 kHz.
available to the external oscillator modes and the
FRC oscillator, which allows clock speeds of up to
32 MHz.
fixed 31 kHz output, which provides a low-power
option for timing-insensitive applications.
POWER-SAVING TECHNOLOGY
OSCILLATOR OPTIONS AND
FEATURES
DS39747C-page 7