PIC18C242/JW Microchip Technology, PIC18C242/JW Datasheet - Page 96

• Manufacturer Part Number: PIC18C242/JW
• Description: IC MCU EPROM 8KX16 A/D 28CDIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Cr

Specifications of PIC18C242/JW

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: EPROM, UV
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-CDIP (0.300", 7.62mm) Window
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

PIC18CXX2
FIGURE 9-1:
FIGURE 9-2:
DS39206C-page 94
T0CKI pin
Note:
RA4/T0CKI
pin
Note:
Upon RESET, Timer0 is enabled in 8-bit mode with clock input from T0CKI max. prescale.
T0SE
Upon RESET, Timer0 is enabled in 8-bit mode with clock input from T0CKI max. prescale.
F
T0SE
OSC
/4
F
OSC
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
3
(2 T
Sync with
Internal
Clocks
CY
delay)
PSA
0
1
(2 T
Sync with
Internal
Clocks
CY
TMR0L
delay)
8
High Byte
TMR0H
TMR0
8
2001 Microchip Technology Inc.
8
Data Bus
TMR0
8
Read TMR0L
Write TMR0L
Data Bus<7:0>
8
Flag bit TMR0IF
Flag bit TMR0IF
Set Interrupt
on Overflow
Set Interrupt
on Overflow