PIC24FV32KA304 datasheet(14/320 Pages) MICROCHIP

14 / 320 page

PIC24FV32KA304 FAMILY

DS39995B-page 14

 2011 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 I2C™ 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:

Flash

program memory (16 Kbytes

for

PIC24FV16KA

devices,

Kbytes

for

PIC24FV32KA devices).

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).

Alternate SCL and SDA pins are available only

in 28-pin, 44-pin and 48-pin devices and not in

20-pin devices.

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

VDD range of 2.0V to 5.5V, and have an

on-board voltage regulator that powers the core.

Peripherals operate at VDD. Standard devices,

designated by “F” (such as PIC24F32KA304),

function over a lower VDD range of 1.8V to 3.6V.

These parts do not have an internal regulator,

and both the core and peripherals operate

directly from VDD.

All other features for devices in this family are identical;

these are summarized in Table 1-1.

A list of the pin features available on the

PIC24FV32KA304 family devices, sorted by function,

is provided in Table .

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 5, 5, 6, 7, 8 and 9 of

the data sheet. Multiplexed features are

sorted by the priority given to a feature,

with the highest priority peripheral being

listed first.

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