PIC18F2331-E/SP Microchip Technology, PIC18F2331-E/SP Datasheet - Page 138

• Manufacturer Part Number: PIC18F2331-E/SP
• Description: IC MCU FLASH 4KX16 28-DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2331-E/SP

• Core Size: 8-Bit
• Program Memory Size: 8KB (4K x 16)
• 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: 24
• 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 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Controller Family/series: PIC18
• No. Of I/o's: 24
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: I3-DB18F4431 - BOARD DAUGHTER ICEPIC3AC164035 - MODULE SKT FOR 18F2X31 28SOICDVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC18F2331/2431/4331/4431
FIGURE 11-1:
FIGURE 11-2:
DS39616C-page 136
Note:
T0CKI Pin
Note:
T0CKI Pin
Upon Reset, Timer0 is enabled in 16-bit mode with clock input from T0CKI maximum prescale.
Upon Reset, Timer0 is enabled in 8-bit mode with clock input from T0CKI maximum prescale.
T0SE
T0SE
F
OSC
F
/4
OSC
TIMER0 BLOCK DIAGRAM IN 8-BIT MODE
TIMER0 BLOCK DIAGRAM IN 16-BIT MODE
/4
T0CS
0
1
T0PS2, T0PS1, T0PS0
Programmable
T0CS
Prescaler
0
1
3
T0PS2, T0PS1, T0PS0
Programmable
PSA
Prescaler
1
0
Preliminary
3
(2 T
Sync with
Internal
Clocks
CY
Delay)
PSA
1
0
(2 T
Sync with
Internal
Clocks
CY
Delay)
TMR0L
8
© 2007 Microchip Technology Inc.
High Byte
TMR0H
TMR0
8
Data Bus
TMR0
8
8
8
Read TMR0L
Write TMR0L
Data Bus<7:0>
Flag bit TMR0IF
Set Interrupt
on Overflow
Flag bit TMR0IF
Set Interrupt
on Overflow