PIC32MX775F256H-80V/PT Microchip Technology, PIC32MX775F256H-80V/PT Datasheet - Page 151

• Manufacturer Part Number: PIC32MX775F256H-80V/PT
• Description: 256 KB Flash, 64 KB RAM, USB-OTG, Dual CAN, Ethernet, 80 MHz, 10-Bit ADC, DMA 64
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX775F256H-80V/PT

• Processor Series: PIC32MX7xx
• Core: MIPS
• Data Bus Width: 32 bit
• Program Memory Type: Flash
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• Interface Type: USB, I2C, UART, RS-232, RS-485, SPI
• Maximum Clock Frequency: 80 MHz
• Number Of Programmable I/os: 5
• Number Of Timers: 5
• Operating Supply Voltage: 2.3 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TQFP-100
• Operating Temperature Range: - 40 C to + 85 C
• Supply Current (max): 10 mA
• Core Processor: MIPS32® M4K™
• Core Size: 32-Bit
• Speed: 80MHz
• Connectivity: CAN, Ethernet, I²C, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 53
• Eeprom Size: -
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Lead Free Status / Rohs Status: Details

21.0
The PIC32 RTCC module is intended for applications
in which accurate time must be maintained for
extended periods of time with minimal or no CPU
intervention.
extended battery lifetime while keeping track of time.
A simplified block diagram of the RTCC module is
illustrated in
FIGURE 21-1:
© 2009-2011 Microchip Technology Inc.
Note 1: This data sheet summarizes the features
32.768 kHz Input
from Secondary
Oscillator (S
2: Some registers and associated bits
REAL-TIME CLOCK AND
CALENDAR (RTCC)
of the PIC32MX5XX/6XX/7XX family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 29. “Real-Time
Clock
(DS61125)
Reference Manual” , which is available
from
(www.microchip.com/PIC32).
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization”
this data sheet for device-specific register
and bit information.
Figure
OSC
Low-power
)
21-1.
the
and
RTCC BLOCK DIAGRAM
Alarm
Event
in
Microchip
Compare Registers
RTCC Prescalers
optimization
Repeat Counter
Calendar
the
RTCC Timer
Comparator
with Masks
“PIC32
0.5s
web
RTCC Interrupt Logic
(RTCC)”
provides
Family
site
in
ALRMVAL
RTCVAL
Following are some of the key features of this module:
• Time: hours, minutes and seconds
• 24-hour format (military time)
• Visibility of one-half second period
• Provides calendar: Weekday, date, month and
• Alarm intervals are configurable for half of a
• Alarm repeat with decrementing counter
• Alarm with indefinite repeat: Chime
• Year range: 2000 to 2099
• Leap year correction
• BCD format for smaller firmware overhead
• Optimized for long-term battery operation
• Fractional second synchronization
• User calibration of the clock crystal frequency with
• Calibration range: ± 0.66 seconds error per month
• Calibrates up to 260 ppm of crystal error
• Requirements: External 32.768 kHz clock crystal
• Alarm pulse or seconds clock output on
PIC32MX5XX/6XX/7XX
year
second, one second, 10 seconds, one minute, 10
minutes, one hour, one day, one week, one month
and one year
auto-adjust
RTCC pin
RTCOE
Seconds Pulse
Alarm Pulse
RTCC Interrupt
YEAR, MTH, DAY
HR, MIN, SEC
HR, MIN, SEC
MTH, DAY
WKDAY
WKDAY
DS61156G-page 151
RTCC Pin