PIC18F8621-E/PT Microchip Technology, PIC18F8621-E/PT Datasheet - Page 134

• Manufacturer Part Number: PIC18F8621-E/PT
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,80PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F8621-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: 69
• 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
• 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: Lead free / RoHS Compliant

PIC18F6525/6621/8525/8621
FIGURE 11-1:
FIGURE 11-2:
DS39612B-page 132
Note:
T0CKI pin
Note:
T0CKI pin
T0SE
Upon Reset, Timer0 is enabled in 8-bit mode with clock input from T0CKI max. prescale.
F
Upon Reset, Timer0 is enabled in 8-bit mode with clock input from T0CKI max. prescale.
OSC
T0SE
/4
F
OSC
TIMER0 BLOCK DIAGRAM IN 8-BIT MODE
TIMER0 BLOCK DIAGRAM IN 16-BIT MODE
/4
T0CS
0
1
T0PS2, T0PS1, T0PS0
Programmable
T0CS
0
1
Prescaler
T0PS2, T0PS1, T0PS0
3
Programmable
Prescaler
PSA
1
0
3
(2 T
Sync with
Internal
Clocks
CY
Delay)
PSA
1
0
(2 T
Sync with
Internal
Clocks
CY
Delay)
TMR0L
8
High Byte
TMR0H
 2005 Microchip Technology Inc.
TMR0
8
Data Bus
TMR0
8
8
8
Flag bit TMR0IF
Data Bus<7:0>
Read TMR0L
Write TMR0L
Set Interrupt
on Overflow
Flag bit TMR0IF
Set Interrupt
on Overflow