PIC24FJ48GA004T-I/ML Microchip Technology, PIC24FJ48GA004T-I/ML Datasheet - Page 105
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PIC24FJ48GA004T-I/ML
Manufacturer Part Number
PIC24FJ48GA004T-I/ML
Description
16-bit Family, 16 MIPS, 48KB Flash, 8192 Bytes RAM, 35 I/O, NanoWatt 44 QFN 8x8x
Manufacturer
Microchip Technology
Series
PIC® 24Fr
Datasheets
1.PIC24FJ16GA002-ISS.pdf
(52 pages)
2.PIC24FJ16GA002-ISS.pdf
(268 pages)
3.PIC24FJ16GA002-ISS.pdf
(22 pages)
Specifications of PIC24FJ48GA004T-I/ML
Core Processor
PIC
Core Size
16-Bit
Speed
32MHz
Connectivity
I²C, PMP, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
35
Program Memory Size
48KB (16K x 24)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DM240011 - KIT STARTER MPLAB FOR PIC24F MCUAC162088 - HEADER MPLAB ICD2 24FJ64GA004 28AC164336 - MODULE SOCKET FOR PM3 28/44QFNDV164033 - KIT START EXPLORER 16 MPLAB ICD2
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC24FJ16GA002-ISS PDF datasheet
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- PIC24FJ16GA002-ISS PDF datasheet #3
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10.0
All of the device pins (except V
OSCI/CLKI) are shared between the peripherals and
the parallel I/O ports. All I/O input ports feature Schmitt
Trigger inputs for improved noise immunity.
10.1
A parallel I/O port that shares a pin with a peripheral is,
in general, subservient to the peripheral. The periph-
eral’s output buffer data and control signals are
provided to a pair of multiplexers. The multiplexers
select whether the peripheral or the associated port
has ownership of the output data and control signals of
the I/O pin. The logic also prevents “loop through”, in
which a port’s digital output can drive the input of a
peripheral that shares the same pin. Figure 10-1 shows
how ports are shared with other peripherals and the
associated I/O pin to which they are connected.
FIGURE 10-1:
2010 Microchip Technology Inc.
Note:
I/O PORTS
Parallel I/O (PIO) Ports
This data sheet summarizes the features
of this group of PIC24F devices. It is not
intended to be a comprehensive reference
source. For more information, refer to the
“PIC24F
”Section 12. I/O Ports with Peripheral
Pin Select (PPS)” (DS39711).
Read TRIS
Data Bus
WR TRIS
WR LAT +
WR PORT
Read LAT
Read PORT
Family
BLOCK DIAGRAM OF A TYPICAL SHARED PORT STRUCTURE
Peripheral Input Data
Peripheral Module Enable
Peripheral Output Enable
Peripheral Output Data
Peripheral Module
PIO Module
Reference
TRIS Latch
DD
Data Latch
D
D
CK
CK
, V
SS
Q
Q
, MCLR and
Manual”,
PIC24FJ64GA004 FAMILY
Output Multiplexers
When a peripheral is enabled and the peripheral is
actively driving an associated pin, the use of the pin as
a general purpose output pin is disabled. The I/O pin
may be read, but the output driver for the parallel port
bit will be disabled. If a peripheral is enabled, but the
peripheral is not actively driving a pin, that pin may be
driven by a port.
All port pins have three registers directly associated
with their operation as digital I/O. The Data Direction
register (TRISx) determines whether the pin is an input
or an output. If the data direction bit is a ‘1’, then the pin
is an input. All port pins are defined as inputs after a
Reset. Reads from the Output Latch register (LATx),
read the latch. Writes to the latch, write the latch.
Reads from the port (PORTx), read the port pins, while
writes to the port pins, write the latch.
Any bit and its associated data and control registers
that are not valid for a particular device will be
disabled. That means the corresponding LATx and
TRISx registers and the port pin will read as zeros.
When a pin is shared with another peripheral or func-
tion that is defined as an input only, it is, nevertheless,
regarded as a dedicated port because there is no
other competing source of outputs.
1
0
1
0
Output Enable
Output Data
Input Data
I/O
I/O Pin
DS39881D-page 105
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