PIC24FJ64GA106T-I/PT Microchip Technology, PIC24FJ64GA106T-I/PT Datasheet - Page 242

• Manufacturer Part Number: PIC24FJ64GA106T-I/PT
• Description: 16-bit, 16 MIPS, 64KB Flash, 16Kb RAM, 84 I/O, NanoWatt 64 TQFP 10x10x1mm T/R
• Manufacturer: Microchip Technology
• Series: PIC® 24Fr

Specifications of PIC24FJ64GA106T-I/PT

• Core Processor: PIC
• Core Size: 16-Bit
• Speed: 32MHz
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 64KB (22K x 24)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Processor Series: PIC24FJ256GA110
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: UART, I2C, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Timers: 5
• Operating Supply Voltage: 3.6 V
• Maximum Operating Temperature: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

modules are related in this application. This example
PIC24FJ256GA110 FAMILY
24.2
Time measurements on the pulse width can be similarly
performed using the A/D module’s internal capacitor
(C
Figure 24-2
time measurements, and how the CTMU and A/D
also shows both edge events coming from the external
CTEDG pins, but other configurations using internal
edge sources are possible. A detailed discussion on
measuring capacitance and time with the CTMU module
is provided in the “PIC24F Family Reference Manual”.
24.3
The CTMU module can also generate an output pulse
with edges that are not synchronous with the device’s
system clock. More specifically, it can generate a pulse
with a programmable delay from an edge event input to
the module.
FIGURE 24-2:
FIGURE 24-3:
DS39905E-page 242
AD
) and a precision resistor for current calibration.
Measuring Time
Pulse Generation and Delay
shows the external connections used for
TYPICAL CONNECTIONS AND INTERNAL CONFIGURATION FOR TIME
MEASUREMENT
TYPICAL CONNECTIONS AND INTERNAL CONFIGURATION FOR PULSE
DELAY GENERATION
CTEDG1
C2INB
C
CTEDG1
CTEDG2
DELAY
ANx
R
PR
EDG1
CV
PIC24FJ Device
EDG2
EDG1
Current Source
Comparator
REF
C
PIC24FJ Device
AD
A/D Converter
CTMU
C2
Current Source
CTMU
Output Pulse
When the module is configured for pulse generation
delay by setting the TGEN bit (CTMUCON<12>), the
internal current source is connected to the B input of
Comparator 2. A capacitor (C
the Comparator 2 pin C2INB, and the comparator volt-
age reference, CV
is then configured for a specific trip point. The module
begins to charge C
detected. When C
point, a pulse is output on CTPLS. The length of the
pulse delay is determined by the value of C
the CV
Figure 24-3
generation, as well as the relationship of the different
analog modules required. While CTEDG1 is shown as
the input pulse source, other options are available. A
detailed discussion on pulse generation with the CTMU
module is provided in the “PIC24F Family Reference
Manual”.
REF
trip point.
shows the external connections for pulse
DELAY
REF
CTPLS
DELAY
, is connected to C2INA. CV
 2010 Microchip Technology Inc.
charges above the CV
when an edge event is
DELAY
) is connected to
DELAY
REF
and
REF
trip