PIC18F4431-E/PT Microchip Technology, PIC18F4431-E/PT Datasheet - Page 136

• Manufacturer Part Number: PIC18F4431-E/PT
• Description: IC MCU FLASH 8KX16 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4431-E/PT

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K x 16)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 9x10b
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC18
• No. Of I/o's: 36
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F2331/2431/4331/4431
FIGURE 11-1:
FIGURE 11-2:
DS39616B-page 134
Note:
Note: Upon Reset, Timer0 is enabled in 8-bit mode with clock input from T0CKI maximum prescale.
T0CKI pin
T0CKI pin
Upon Reset, Timer0 is enabled in 8-bit mode with clock input from T0CKI maximum prescale.
T0SE
T0SE
F
OSC
F
OSC
/4
TIMER0 BLOCK DIAGRAM IN 8-BIT MODE
TIMER0 BLOCK DIAGRAM IN 16-BIT MODE
/4
T0CS
0
1
T0PS2, T0PS1, T0PS0
T0CS
Programmable
0
1
Prescaler
3
T0PS2, T0PS1, T0PS0
Programmable
Prescaler
PSA
0
1
Preliminary
3
(2 T
Sync with
Internal
Clocks
CY
delay)
PSA
0
1
(2 T
Sync with
Internal
Clocks
CY
delay)
TMR0L
8
 2003 Microchip Technology Inc.
High Byte
TMR0H
TMR0
8
Data Bus
TMR0
8
8
8
Flag bit TMR0IF
Read TMR0L
Write TMR0L
Data Bus<7:0>
Set Interrupt
on Overflow
Flag bit TMR0IF
Set Interrupt
on Overflow