PIC24FJ64GA104-I/PT Microchip Technology, PIC24FJ64GA104-I/PT Datasheet - Page 28

• Manufacturer Part Number: PIC24FJ64GA104-I/PT
• Description: IC PIC MCU FLASH 64KB 44-TQFP
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 24Fr

Specifications of PIC24FJ64GA104-I/PT

• Core Size: 16-Bit
• Program Memory Size: 64KB (22K x 24)
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 35
• 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-TQFP, 44-VQFP
• Controller Family/series: PIC24
• Ram Memory Size: 8KB
• Cpu Speed: 32MHz
• No. Of Timers: 5
• Interface: I2C, LIN, SPI, USART
• No. Of Pwm Channels: 5
• Embedded Interface Type: I2C, LIN, SPI, USART
• Rohs Compliant: Yes
• Processor Series: PIC24FJ
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, IrDA, SPI, UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 35
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, DM240001, MA240020, DM240002, DM240011, DV164033
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 13 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1004 - PIC24 BREAKOUT BOARD
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

DS51873B-page 28
To avoid starving the microcontroller’s current supply and causing low-power
conditions, it may be necessary to switch the ammeter to a higher current range during
programming and full-power operation. When the microcontroller is operating in a
low-power state, switching to a low range will produce a more accurate measurement.
As an alternative, two through-hole sockets, marked CURRENT MEASURE, have also
been placed in the microcontroller’s V
create a voltage drop corresponding to the current being consumed by the
microcontroller; this can, in turn, be measured with an oscilloscope. To do this:
1. Calculate the size of the resistor required to produce the voltage drop using the
2. Connect the resistor across the through-hole sockets.
3. Connect the scope’s probes across the terminals of JP9.
4. With the appropriate power supply connected and the scope configured for
The resulting waveform will be a scalar representation of the current consumed by the
PIC24F device. This technique is especially useful for evaluating microcontroller power
over a time interval.
3.3.2
The IC PWR jumper (JP10) allows the user to measure the current consumed by the
various board components. It also permits the user to experiment with low-power
techniques on a variety of commonly used components.
Current measurements taken at JP10 exclude current consumption from the micro-
controller, ICSP™ header and the USB interface. Therefore, communications with a
host PC and emulator/programmer connections do not need to be accounted for in
determining an accurate current measurement, as they are not included in the first
place. Since JP10 interrupts the V
certain to re-install the jumper when measurements are not being taken.
3.3.3
The XLP 16-bit board includes a special 7-pin header (J10) for current measurement.
The PIC MCU PWR and IC PWR jumpers (JP9 and JP10) ensure continuity of power
when connecting or disconnecting a current measurement device. Microchip provides
an optional XLP Current Measurement Cable (part number AC002023) as a convenient
way of connecting the header to an ammeter.
Note:
V
the device data sheet).
Differential Voltage mode, remove the PIC
provides continuous microcontroller power and avoids a spurious BOR or POR
event.)
DD
and estimated current consumption (found in the electrical specifications of
Component Power Measurement
Ammeter Tool Header
Since the resistor is placed in series with the PIC MCU V
resulting voltage drop may affect power calculations. Ensure calculations
are based on actual V
DD
DD
, instead of the supplied board voltage.
path to the board’s other components, always be
DD
path. Using an appropriately sized resistor will
®
MCU PWR jumper. (This sequence
 2010 Microchip Technology Inc.
DD
pin, the