PIC18C858-E/PT Microchip Technology, PIC18C858-E/PT Datasheet - Page 26
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC18C858-E/PT
Manufacturer Part Number
PIC18C858-E/PT
Description
IC MCU OTP 16KX16 CAN 80TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16C770-ISO.pdf
(8 pages)
3.PIC18C658-IPT.pdf
(366 pages)
4.PIC18C658-IPT.pdf
(16 pages)
5.PIC18C658-IPT.pdf
(16 pages)
6.PIC18C658-IPT.pdf
(16 pages)
Specifications of PIC18C858-E/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
68
Program Memory Size
32KB (16K x 16)
Program Memory Type
OTP
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
80-TFQFP
Processor Series
PIC18C
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1536 B
Interface Type
3-Wire, I2C, SPI, USART, CAN
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
68
Number Of Timers
4 bit
Operating Supply Voltage
2.5 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
ICE2000, DM163007, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
6
Data Rom Size
4 KB
Height
1 mm
Length
12 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.2 V
Width
12 mm
For Use With
XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
PIC18C858E/PT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18C858-E/PT
Manufacturer:
MICROCHIP
Quantity:
12 000
Company:
Part Number:
PIC18C858-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16C770-ISO PDF datasheet #2
- PIC18C658-IPT PDF datasheet #3
- PIC18C658-IPT PDF datasheet #4
- PIC18C658-IPT PDF datasheet #5
- PIC18C658-IPT PDF datasheet #6
- Current page: 26 of 366
- Download datasheet (7Mb)
PIC18CXX8
2.6.2
The PIC18CXX8 devices contain circuitry to prevent
"glitches" when switching between oscillator sources.
Essentially, the circuitry waits for eight rising edges of
the clock source that the processor is switching to.
This ensures that the new clock source is stable and
that its pulse width will not be less than the shortest
pulse width of the two clock sources.
A timing diagram indicating the transition from the
main oscillator to the Timer1 oscillator is shown in
Figure 2-7. The Timer1 oscillator is assumed to be
running all the time. After the SCS bit is set, the pro-
cessor is frozen at the next occurring Q1 cycle. After
eight synchronization cycles are counted from the
Timer1 oscillator, operation resumes. No additional
delays are required after the synchronization cycles.
FIGURE 2-7:
FIGURE 2-8:
DS30475A-page 26
Program Counter
Note 1:
Internal System
(OSCCON<0>)
T1OSI
OSC1
Internal
System
Clock
SCS
(OSCCON<0>)
Program
Counter
Note 1:
OSCILLATOR TRANSITIONS
T1OSI
OSC1
OSC2
Clock
SCS
T
Q1
OST
Delay on internal system clock is eight oscillator cycles for synchronization.
T
Q2
OSC
= 1024T
PC
Q3
TIMING DIAGRAM FOR TRANSITION FROM OSC1 TO TIMER1 OSCILLATOR
Q3
TIMING DIAGRAM FOR TRANSITION BETWEEN TIMER1 AND OSC1 (HS,XT,LP)
PC
Q4
OSC
Q4
Q1
T
(drawing not to scale).
DLY
1
Q1
2
T
T
1
P
3
Advanced Information
T
OST
4
Tscs
PC + 2
5
T
OSC
6
PC + 2
7
The sequence of events that takes place when switch-
ing from the Timer1 oscillator to the main oscillator will
depend on the mode of the main oscillator. In addition
to eight clock cycles of the main oscillator, additional
delays may take place.
If the main oscillator is configured for an external crys-
tal (HS, XT, LP), the transition will take place after an
oscillator start-up time (T
diagram indicating the transition from the Timer1 oscil-
lator to the main oscillator for HS, XT and LP modes is
shown in Figure 2-8.
1
8
2
Q1
3
Q2
4
T
T
T
SCS
1
Q3
P
5
6
Q4
2000 Microchip Technology Inc.
7
OST
Q1
Q1
8
) has occurred. A timing
Q2 Q3
Q2
PC + 4
Q3
Q4
Q1 Q2
Q4
PC + 4
Q1
Q3
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