PIC18F8620-E/PT Microchip Technology, PIC18F8620-E/PT Datasheet - Page 138

• Manufacturer Part Number: PIC18F8620-E/PT
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,80PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F8620-E/PT

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 68
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.75K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 80-TFQFP
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3840 B
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 68
• Number Of Timers: 2 x 8 bit
• Operating Supply Voltage: 4.2 V to 5.5 V
• Maximum Operating Temperature: + 125 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, ICE2000, ICE4000, DV164136, DM183022, DM183032
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 16 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
• Lead Free Status / Rohs Status: Details

PIC18F6520/8520/6620/8620/6720/8720
12.1
Timer1 can operate in one of these modes:
• As a timer
• As a synchronous counter
• As an asynchronous counter
The operating mode is determined by the clock select
bit, TMR1CS (T1CON<1>).
FIGURE 12-1:
FIGURE 12-2:
DS39609B-page 136
Note 1: When enable bit T1OSCEN is cleared, the inverter and feedback resistor are turned off. This eliminates power drain.
Note 1: When enable bit T1OSCEN is cleared, the inverter and feedback resistor are turned off. This eliminates power drain.
T1OSO/T13CKI
T1OSO/T13CKI
Timer1 Operation
TMR1IF
Overflow
Interrupt
Flag Bit
TMR1IF
Overflow
Interrupt
Flag bit
Data Bus<7:0>
Write TMR1L
Read TMR1L
T1OSI
T1OSI
TIMER1 BLOCK DIAGRAM
TIMER1 BLOCK DIAGRAM: 16-BIT READ/WRITE MODE
8
TMR1H
T1OSC
T1OSC
High Byte
TMR1H
Timer 1
8
8
TMR1
T1OSCEN
Enable
Oscillator
TMR1
TMR1L
Oscillator
Enable
T1OSCEN
CLR
TMR1L
(1)
8
(1)
Clock
Internal
F
CLR
OSC
/4
TMR1ON
CCP Special Event Trigger
On/Off
Clock
F
Internal
TMR1CS
OSC
1
0
When TMR1CS = 0, Timer1 increments every instruc-
tion cycle. When TMR1CS = 1, Timer1 increments on
every rising edge of the external clock input or the
Timer1 oscillator, if enabled.
When the Timer1 oscillator is enabled (T1OSCEN is
set), the RC1/T1OSI and RC0/T1OSO/T13CKI pins
become inputs. That is, the TRISC<1:0> value is
ignored and the pins are read as ‘0’.
Timer1 also has an internal “Reset input”. This
Reset can be generated by the CCP module
(see Section 16.0 “Capture/Compare/PWM (CCP)
Modules”).
/4
TMR1ON
CCP Special Event Trigger
On/Off
T1CKPS1:T1CKPS0
TMR1CS
1
0
T1SYNC
Prescaler
1, 2, 4, 8
0
1
T1CKPS1:T1CKPS0
2
T1SYNC
Prescaler
1, 2, 4, 8
1
0
2
 2004 Microchip Technology Inc.
Synchronized
Clock Input
Synchronize
Sleep Input
Synchronized
det
Clock Input
Synchronize
Sleep Input
det