PIC18C442-E/L Microchip Technology, PIC18C442-E/L Datasheet - Page 24

• Manufacturer Part Number: PIC18C442-E/L
• Description: IC MCU OTP 8KX16 A/D 44PLCC
• Manufacturer: Microchip Technology
• Series: PIC® 18Cr

Specifications of PIC18C442-E/L

• 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: 33
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: OTP
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-PLCC
• For Use With: DVA16XL441 - ADAPTER DEVICE ICE 44PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: PIC18C442E/L

PIC18CXX2
If the main oscillator is configured for HS-PLL mode, an
oscillator start-up time (T
time-out (T
2 ms and allows the PLL to lock to the main oscillator
FIGURE 2-10:
If the main oscillator is configured in the RC, RCIO, EC
or ECIO modes, there is no oscillator start-up time-out.
Operation will resume after eight cycles of the main
oscillator have been counted. A timing diagram, indi-
FIGURE 2-11:
DS39026C-page 22
Program Counter
Note 1: RC oscillator mode assumed.
Program Counter
Internal System
Note 1: T
(OSCCON<0>)
Internal System
(OSCCON<0>)
PLL Clock
T1OSI
OSC1
OSC2
Clock
SCS
T1OSI
PLL
OSC1
OSC2
Clock
OST
Input
SCS
) will occur. The PLL time-out is typically
= 1024T
PC
Q4
Q3
OSC
TIMING FOR TRANSITION BETWEEN TIMER1 AND OSC1 (HS WITH PLL)
TIMING FOR TRANSITION BETWEEN TIMER1 AND OSC1 (RC, EC)
(drawing not to scale).
OST
Q1
T
) plus an additional PLL
OST
PC
Q4
T
PLL
Q1
PC + 2
T
OSC
T
1
OSC
1
T
T
1
frequency. A timing diagram, indicating the transition
from the Timer1 oscillator to the main oscillator for
HS-PLL mode, is shown in Figure 2-10.
cating the transition from the Timer1 oscillator to the
main oscillator for RC, RCIO, EC and ECIO modes, is
shown in Figure 2-11.
2
P
2
3
3
PC + 2
4
T
T
SCS
4
T
SCS
T
5
1
P
5
6
6
7
7
8
Q1 Q2 Q3 Q4
8
Q1 Q2 Q3
2001 Microchip Technology Inc.
Q4 Q1 Q2 Q3
Q1 Q2
PC + 4
PC + 4
Q3
Q4
Q4