PIC32MX460F256LT-80V/BG Microchip Technology, PIC32MX460F256LT-80V/BG Datasheet - Page 121

• Manufacturer Part Number: PIC32MX460F256LT-80V/BG
• Description: 256 KB Flash, 32 KB RAM, USB-OTG, 80 MHz, 10-Bit ADC, DMA 121 XBGA 10x10x1.20mm
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX460F256LT-80V/BG

• Processor Series: PIC32MX4xx
• Core: MIPS
• Data Bus Width: 32 bit
• Program Memory Type: Flash
• Program Memory Size: 256 KB
• Data Ram Size: 32 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: + 105 C
• Mounting Style: SMD/SMT
• Package / Case: XBGA-121
• Operating Temperature Range: - 40 C to + 105 C
• Supply Current (max): 10 mA
• Core Processor: MIPS32® M4K™
• Core Size: 32-Bit
• Speed: 80MHz
• Connectivity: I²C, IrDA, LIN, PMP, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: -
• Eeprom Size: -
• Ram Size: 32K 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 PIC32MX RTCC module is intended for applica-
tions in which accurate time must be maintained for
extended periods of time with minimal or no CPU inter-
vention. Low-power optimization provides extended
battery lifetime while keeping track of time.
FIGURE 21-1:
© 2011 Microchip Technology Inc.
32.768 kHz Input
from Secondary
Oscillator (S
Note 1: This data sheet summarizes the features
2: Some registers and associated bits
REAL-TIME CLOCK AND
CALENDAR (RTCC)
OSC
of the PIC32MX3XX/4XX family of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 29. “Real-Time Clock
and Calendar (RTCC)” (DS61125) of the
“PIC32 Family Reference Manual”, which
is available from the Microchip web site
(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.
)
Alarm
Event
RTCC BLOCK DIAGRAM
Compare Registers
RTCC Prescalers
Repeat Counter
RTCC Timer
Comparator
with Masks
0.5s
RTCC Interrupt Logic
in
ALRMVAL
RTCVAL
The 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
• Calibration Range: ±0.66 Seconds Error per
• Calibrates up to 260 ppm of Crystal Error
• Requirements: External 32.768 kHz Clock Crystal
• Alarm Pulse or Seconds Clock Output on RTCC
Year
Second, One Second, 10 Seconds, One Minute,
10 Minutes, One Hour, One Day, One Week, One
Month and One Year
with Auto-Adjust
Month
pin
PIC32MX3XX/4XX
RTCOE
Seconds Pulse
Alarm Pulse
RTCC Interrupt
YEAR, MTH, DAY
HR, MIN, SEC
HR, MIN, SEC
MTH, DAY
WKDAY
WKDAY
DS61143H-page 121
RTCC Pin