PIC18LF13K22-E/P Microchip Technology, PIC18LF13K22-E/P Datasheet - Page 110

• Manufacturer Part Number: PIC18LF13K22-E/P
• Description: 8KB Flash, 256bytes RAM, 256bytes EEPROM, 16MIPS, NanoWatt XLP 20 PDIP .300in TU
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18LF13K22-E/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F1XK22/LF1XK22
12.1
Timer3 can operate in one of three modes:
• Timer
• Synchronous Counter
• Asynchronous Counter
The operating mode is determined by the clock select
bit, TMR3CS of the T3CON register. When TMR3CS is
cleared (= 0), Timer3 increments on every internal
instruction cycle (F
increments on every rising edge of the Timer1 external
clock input or the Timer1 oscillator, if enabled.
As with Timer1, the digital circuitry associated with the
OSC1 and OSC2 pins is disabled when the Timer1
oscillator is enabled. This means the values of
TRISA<5:4> are ignored and the pins are read as ‘0’.
FIGURE 12-1:
DS41365D-page 110
Note 1: When enable bit, T1OSCEN, is cleared, the inverter and feedback resistor are turned off to eliminate power drain.
OSC1/T13CKI
Timer3 Operation
Without CLKOUT
OSC2
T1OSCEN
INTOSC
OSC
(1)
CCP1 Select from T3CON<3>
CCP1 Special Event Trigger
Timer1 Oscillator
T3CKPS<1:0>
T3SYNC
TMR3ON
TIMER3 BLOCK DIAGRAM
/4). When the bit is set, Timer3
TMR3CS
Clock
Internal
F
OSC
/4
Preliminary
1
0
Timer1 Clock Input
Clear TMR3
Prescaler
1, 2, 4, 8
2
TMR3L
Sleep Input
Synchronize
Detect
High Byte
TMR3
 2010 Microchip Technology Inc.
1
0
on Overflow
TMR3IF
Set
Timer3
On/Off