PIC18F25J11-I/ML Microchip Technology, PIC18F25J11-I/ML Datasheet - Page 234

• Manufacturer Part Number: PIC18F25J11-I/ML
• Description: IC PIC MCU FLASH 32K 2V 28-QFN
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F25J11-I/ML

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K x 16)
• Core Processor: PIC
• Speed: 48MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: FLASH
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 2.15 V ~ 3.6 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Controller Family/series: PIC18
• No. Of I/o's: 16
• Ram Memory Size: 3.6875KB
• Cpu Speed: 48MHz
• No. Of Timers: 5
• Interface: EUSART, I2C, SPI
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3776 B
• Interface Type: EUSART, I2C, SPI
• Maximum Clock Frequency: 48 MHz
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DM183022, DM183032, DV164136, MA180023
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 10 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

PIC18F46J11 FAMILY
16.2.2
As mentioned earlier, the RTCC module is intended to
be clocked by an external Real-Time Clock crystal
oscillating at 32.768 kHz, but also can be clocked by
the internal RC oscillator. The RTCC clock selection is
decided by the RTCOSC bit (CONFIG3L<1>).
FIGURE 16-4:
16.2.2.1
The RTCC module can be clocked by an external,
32.768 kHz crystal (Timer1 oscillator) or the internal RC
oscillator, which can be selected in CONFIG3L<1>.
If the external clock is used, the Timer1 oscillator
should be enabled by setting T1CON<3> (T1OSCEN).
If INTRC is providing the clock, the INTRC clock can be
brought out to the RTCC pin by the RTSECSEL<1:0>
bits in the PADCFG register.
16.2.3
This section explains which timer values are affected
when there is a rollover.
• Time of Day: From 23:59:59 to 00:00:00 with a
• Month: From 12/31 to 01/01 with a carry to the
• Day of Week: From 6 to 0 with no carry (see
• Year Carry: From 99 to 00; this also surpasses the
DS39932C-page 234
32.768 kHz XTAL
from T1OSC
Internal RC
CONFIG 3L<1>
carry to the Day field
Year field
Table 16-1)
use of the RTCC
Note 1:
CLOCK SOURCE
DIGIT CARRY RULES
Writing to the lower half of the MINSEC register resets all counters, allowing fraction of a second synchronization;
the clock prescaler is held in Reset when RTCEN =
Real-Time Clock Enable
CLOCK SOURCE MULTIPLEXING
Second
Clock Prescaler
Hour:Minute
1:16384
(1)
0
.
Day of Week
module to yield an error of 3 seconds or less per month.
Calibration of the crystal can be done through this
(For further details, see Section 16.2.9 “Calibration”.)
For the day to month rollover schedule, see Table 16-2.
Considering that the following values are in BCD
format, the carry to the upper BCD digit will occur at a
count of 10 and not at 16 (SECONDS, MINUTES,
HOURS, WEEKDAY, DAYS and MONTHS).
TABLE 16-1:
Half-Second
Clock
Day
Wednesday
Thursday
Saturday
Tuesday
Monday
Sunday
Friday
Half Second
DAY OF WEEK SCHEDULE
Day of Week
Month
© 2009 Microchip Technology Inc.
(1)
One-Second Clock
Year
0
1
2
3
4
5
6