Datasheet

PIC24FV32KA304 FAMILY
DS30009995E-page 12  2011-2017 Microchip Technology Inc.
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 oscillator 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 the 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 helps in migrating to the next larger
device. This is true when moving between devices with
the same pin count, or even jumping from 20-pin or
28-pin devices to 44-pin/48-pin devices.
The PIC24F family is pin compatible with devices in the
dsPIC33 family, and shares some compatibility with the
pinout schema for PIC18 and dsPIC30. This extends
the ability of applications to grow from the relatively
simple, to the powerful and complex.
1.2 Other Special Features
• Communications: The PIC24FV32KA304 family
incorporates a range of serial communication
peripherals to handle a range of application
requirements. There is an I
2
C module that
supports both the Master and Slave modes of
operation. It also comprises UARTs with built-in
IrDA
®
encoders/decoders and an SPI module.
• Real-Time Clock/Calendar: This module
implements a full-featured clock and calendar with
alarm functions in hardware, freeing up timer
resources and program memory space for use of
the core application.
• 12-Bit A/D Converter: This module incorporates
programmable acquisition time, allowing for a
channel to be selected and a conversion to be
initiated without waiting for a sampling period, and
faster sampling speed. The 16-deep result buffer
can be used either in Sleep to reduce power, or in
Active mode to improve throughput.
• Charge Time Measurement Unit (CTMU)
Interface: The PIC24FV32KA304 family includes
the new CTMU interface module, which can be
used for capacitive touch sensing, proximity
sensing, and also for precision time measurement
and pulse generation.
1.3 Details on Individual Family
Members
Devices in the PIC24FV32KA304 family are available
in 20-pin, 28-pin, 44-pin and 48-pin packages. The
general block diagram for all devices is shown in
Figure 1-1.
The devices are different from each other in four ways:
1. Flash program memory (16 Kbytes for
PIC24FV16KA devices, 32 Kbytes for
PIC24FV32KA devices).
2. Available I/O pins and ports (18 pins on two
ports for 20-pin devices, 22 pins on two ports for
28-pin devices and 38 pins on three ports for
44/48-pin devices).
3. Alternate SCLx and SDAx pins are available
only in 28-pin, 44-pin and 48-pin devices and not
in 20-pin devices.
4. Members of the PIC24FV32KA301 family are
available as both standard and high-voltage
devices. High-voltage devices, designated with
an “FV” in the part number (such as
PIC24FV32KA304), accommodate an operating
V
DD range of 2.0V to 5.5V, and have an on-board
Voltage Regulator that powers the core. Peripher-
als operate at V DD . Standard devices, designated
by “F” (such as PIC24F32KA304), function over
a lower V DD range of 1.8V to 3.6V. These parts
do not have an internal regulator, and both the
core and peripherals operate directly from V
DD .
All other features for devices in this family are identical;
these are summarized in Ta b le 1- 1.
A list of the pin features available on the
PIC24FV32KA304 family devices, sorted by function,
is provided in Table 1-3.
Note: Table 1-1 provides the pin location of
individual peripheral features and not how
they are multiplexed on the same pin. This
information is provided in the pinout
diagrams on pages 3, 4, 5, 6 and 7 of the
data sheet. Multiplexed features are
sorted by the priority given to a feature,
with the highest priority peripheral being
listed first.