PIC18F86J90-I/PT Microchip Technology, PIC18F86J90-I/PT Datasheet - Page 165

• Manufacturer Part Number: PIC18F86J90-I/PT
• Description: IC PIC MCU FLASH 64KB 80-TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F86J90-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 64KB (32K x 16)
• Package / Case: 80-TFQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 67
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3923 B
• Interface Type: AUSART, EUSART, I2C, SPI
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 67
• Number Of Timers: 4
• Operating Supply Voltage: 2.65 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162079 - HEADER MPLAB ICD2 18F85J90 64/80AC164328 - MODULE SKT FOR 80TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

15.1.4
An attempt to write to the RTCEN bit while
RTCWREN = 0 will be ignored. RTCWREN must be
set before a write to RTCEN can take place.
Like the RTCEN bit, the RTCVALH and RTCVALL
registers can only be written to when RTCWREN = 1.
A write to these registers, while RTCWREN = 0, will be
ignored.
FIGURE 15-2:
FIGURE 15-3:
 2010 Microchip Technology Inc.
RTCEN BIT WRITE
0-9
0-2
0-2
(24-hour format)
(24-hour format)
Hours
Hours
Year
TIMER DIGIT FORMAT
ALARM DIGIT FORMAT
0-9
0-9
0-9
0-5
0-1
0-5
0-1
Minutes
Minutes
Month
Month
0-9
0-9
0-9
0-9
PIC18F87J90 FAMILY
15.2
15.2.1
The register interface for the RTCC and alarm values is
implemented using the Binary Coded Decimal (BCD)
format. This simplifies the firmware when using the
module as each of the digits is contained within its own
4-bit value (see Figure 15-2 and Figure 15-3).
0-5
0-3
0-5
0-3
Seconds
Seconds
Operation
Day
Day
REGISTER INTERFACE
0-9
0-9
0-9
0-9
1/2 Second Bit
Day Of Week
(binary format)
Day Of Week
DS39933D-page 165
0-6
0-6
0/1