DSPIC33FJ64GP204-I/PT Microchip Technology, DSPIC33FJ64GP204-I/PT Datasheet - Page 267

• Manufacturer Part Number: DSPIC33FJ64GP204-I/PT
• Description: IC DSPIC MCU/DSP 64K 44-TQFP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 33Fr

Specifications of DSPIC33FJ64GP204-I/PT

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: AC'97, Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 13x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Core Frequency: 40MHz
• Embedded Interface Type: ECAN, I2C, SPI, UART
• No. Of I/o's: 35
• Flash Memory Size: 64KB
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: -40°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DV164033 - KIT START EXPLORER 16 MPLAB ICD2DM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

23.0
This chapter discusses the Real-Time Clock and
Calendar
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices, and its
operation. Listed below are some of the key features
of this module:
• Time: hours, minutes, and seconds
• 24-hour format (military time)
• Calendar: weekday, date, month, and year
FIGURE 23-1:
© 2008 Microchip Technology Inc.
Note:
32.768 kHz Input
from SOSC Oscillator
REAL-TIME CLOCK AND
CALENDAR (RTCC)
This data sheet summarizes the features
of
dsPIC33FJ64GPX02/X04,
dsPIC33FJ128GPX02/X04
devices. It is not intended to be a
comprehensive reference source.
complement the information in this data
sheet, refer to the dsPIC33F Family
Reference Manual, “Section 37. Real-
Time Clock and Calendar (RTCC)”,
which is available from the Microchip
website (www.microchip.com).
(RTCC)
the
RTCC BLOCK DIAGRAM
Event
Alarm
module,
RTCC Clock Domain
dsPIC33FJ32GP302/304,
Compare Registers
RTCC Prescalers
Repeat Counter
RTCC Timer
Comparator
with Masks
available
0.5s
families
RTCC Interrupt Logic
and
Preliminary
To
of
on
CPU Clock Domain
ALRMVAL
ALCFGRPT
• Alarm configurable
• Year range: 2000 to 2099
• Leap year correction
• BCD format for compact firmware
• Optimized for low-power operation
• User calibration with auto-adjust
• Calibration range: ±2.64 seconds error per month
• Requirements: External 32.768 kHz clock crystal
• Alarm pulse or seconds clock output on RTCC pin
The RTCC module is intended for applications where
accurate time must be maintained for extended periods
of time with minimum to no intervention from the CPU.
The RTCC module is optimized for low-power usage to
provide extended battery lifetime while keeping track of
time.
The RTCC module is a 100-year clock and calendar
with automatic leap year detection. The range of the
clock is from 00:00:00 (midnight) on January 1, 2000 to
23:59:59 on December 31, 2099.
The hours are available in 24-hour (military time)
format. The clock provides a granularity of one second
with half-second visibility to the user.
RCFGCAL
RTCVAL
RTCOE
Alarm Pulse
RTCC Interrupt
DS70292B-page 265
RTCC Pin