PIC24FJ64GB004-I/ML Microchip Technology, PIC24FJ64GB004-I/ML Datasheet - Page 128

• Manufacturer Part Number: PIC24FJ64GB004-I/ML
• Description: IC, 16BIT MCU, PIC24F, 32MHZ, QFN-44
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 24Fr

Specifications of PIC24FJ64GB004-I/ML

• Controller Family/series: PIC24
• Ram Memory Size: 8KB
• Cpu Speed: 32MHz
• No. Of Timers: 5
• Interface: I2C, LIN, SPI, UART, USB
• No. Of Pwm Channels: 5
• Core Size: 16 Bit
• Program Memory Size: 64 KB
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, IrDA, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 33
• 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
• Embedded Interface Type: I2C, LIN, SPI, UART, USB
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1004 - PIC24 BREAKOUT BOARD
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC24FJ64GB004 FAMILY
10.1.1
In addition to the PORT, LAT and TRIS registers for
data control, each port pin can also be individually
configured for either digital or open-drain output. This is
controlled by the Open-Drain Control register, ODCx,
associated with each port. Setting any of the bits con-
figures the corresponding pin to act as an open-drain
output.
The open-drain feature allows the generation of
outputs higher than V
digital only pins by using external pull-up resistors. The
maximum open-drain voltage allowed is the same as
the maximum V
10.2
The AD1PCFGL and TRIS registers control the opera-
tion of the A/D port pins. Setting a port pin as an analog
input also requires that the corresponding TRIS bit be
set. If the TRIS bit is cleared (output), the digital output
level (V
When reading the PORT register, all pins configured as
analog input channels will read as cleared (a low level).
Pins configured as digital inputs will not convert an
analog input. Analog levels on any pin that is defined as
a digital input (including the ANx pins) may cause the
input buffer to consume current that exceeds the
device specifications.
10.2.1
One instruction cycle is required between a port
direction change or port write operation and a read
operation of the same port. Typically, this instruction
would be a NOP (Example 10-1).
EXAMPLE 10-1:
DS39940D-page 128
MOV
MOV
NOP
BTSS
OH
0xFF00, W0
W0, TRISB
PORTB, #13
Configuring Analog Port Pins
or V
OPEN-DRAIN CONFIGURATION
I/O PORT WRITE/READ TIMING
OL
IH
) will be converted.
specification.
PORT WRITE/READ EXAMPLE
DD
(e.g., 5V) on any desired
; Configure PORTB<15:8> as inputs
; and PORTB<7:0> as outputs
; Delay 1 cycle
; Next Instruction
10.2.2
The voltage tolerance of pins used as device inputs is
dependent on the pin’s input function. Pins that are
used as digital only inputs are able to handle DC
voltages up to 5.5V, a level typical for digital logic
circuits. In contrast, pins that also have analog input
functions of any kind can only tolerate voltages up to
V
should be avoided.
Table 10-1 summarizes the input voltage capabilities.
Refer to Section 29.0 “Electrical Characteristics” for
more details.
TABLE 10-1:
PORTA<4:0>
PORTB<15:13>
PORTB<4:0>
PORTC<3:0>
PORTA<10:7>
PORTB<11:7>
PORTB<5>
PORTC<9:4>
Note 1:
DD
Port or Pin
. Voltage excursions beyond V
Not available on 28-pin devices.
ANALOG INPUT PINS AND
VOLTAGE CONSIDERATIONS
(1)
(1)
(1)
INPUT VOLTAGE TOLERANCE
Tolerate
d Input
5.5V
V
 2010 Microchip Technology Inc.
DD
Only V
levels are tolerated.
Tolerates input levels
above V
most standard logic.
DD
Description
DD
DD
on these pins
input
, useful for