PIC18F458T-I/PT Microchip Technology, PIC18F458T-I/PT Datasheet - Page 112

• Manufacturer Part Number: PIC18F458T-I/PT
• Description: IC MCU FLASH 16KX16 W/CAN 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F458T-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 11-1:
FIGURE 11-2:
DS41159E-page 110
PIC18FXX8
T0CKI pin
Note 1: Upon Reset, Timer0 is enabled in 8-bit mode with clock input from T0CKI max. prescale.
Note 1: Upon Reset, Timer0 is enabled in 8-bit mode with clock input from T0CKI max. prescale.
RA4/T0CKI
pin
(2)
2: I/O pins have diode protection to V
2: I/O pins have diode protection to V
T0SE
(2)
T0SE
F
OSC
/4
F
TIMER0 BLOCK DIAGRAM IN 8-BIT MODE
TIMER0 BLOCK DIAGRAM IN 16-BIT MODE
OSC
T0CS
/4
1
0
T0PS2, T0PS1, T0PS0
(1)
T0CS
Programmable
Prescaler
1
0
(1)
DD
3
DD
and V
T0PS2, T0PS1, T0PS0
and V
SS
SS
Programmable
.
PSA
.
Prescaler
1
0
3
(2 T
Sync with
Internal
Clocks
CY
Delay)
PSA
1
0
(2 T
Sync with
Internal
Clocks
CY
TMR0L
Delay)
8
High Byte
© 2006 Microchip Technology Inc.
TMR0H
TMR0
8
Data Bus
8
TMR0L
8
8
Read TMR0L
Data Bus<7:0>
Write TMR0L
Flag bit TMR0IF
Flag bit TMR0IF
Set Interrupt
on Overflow
Set Interrupt
on Overflow