PIC18C601-I/PT Microchip Technology, PIC18C601-I/PT Datasheet - Page 146
![IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,64PIN,PLASTIC](/photos/6/81/68123/c04-066_pf_sml.jpg)
PIC18C601-I/PT
Manufacturer Part Number
PIC18C601-I/PT
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,64PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 18Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18C601-IL.pdf
(320 pages)
3.PIC18C601-IL.pdf
(10 pages)
4.PIC18C601-IL.pdf
(10 pages)
Specifications of PIC18C601-I/PT
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
25MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
26
Program Memory Type
ROMless
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
64-TFQFP
Processor Series
PIC18C
Core
PIC
Data Bus Width
8 bit
Program Memory Size
256 KB
Data Ram Size
1.5 KB
Interface Type
3-Wire, I2C, SPI, USART
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
26
Number Of Timers
4
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
DV164005, ICE4000, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Details
Other names
PIC18C601I/PT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18C601-I/PT
Manufacturer:
MICROCHIP
Quantity:
12 000
Company:
Part Number:
PIC18C601-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC18C601-IL PDF datasheet #2
- PIC18C601-IL PDF datasheet #3
- PIC18C601-IL PDF datasheet #4
- Current page: 146 of 320
- Download datasheet (6Mb)
PIC18C601/801
14.5
In Pulse Width Modulation (PWM) mode, the CCP1 pin
produces up to a 10-bit resolution PWM output. Since
the CCP1 pin is multiplexed with the PORTC data latch,
the TRISC<2> bit must be cleared to make the CCP1
pin an output.
Figure 14-3 shows a simplified block diagram of the
CCP module in PWM mode.
For a step-by-step procedure on how to setup the CCP
module for PWM operation, see Section 14.5.3.
FIGURE 14-3:
A PWM output (Figure 14-4) has a time-base (period)
and a time that the output stays high (duty cycle). The
frequency of the PWM is the inverse of the period
(1/period).
FIGURE 14-4:
DS39541A-page 146
Note:
Note 1: 8-bit timer is concatenated with 2-bit internal Q clock, or
CCPR1L (Master)
CCPR1H (Slave)
Comparator
Duty Cycle Registers
TMR2 = PR2
PR2
TMR2
Comparator
PWM Mode
2 bits of the prescaler, to create 10-bit time-base.
Duty Cycle
Clearing the CCP1CON register will force
the CCP1 PWM output latch to the default
low level. This is not the PORTC I/O data
latch.
Period
(Note 1)
TMR2 = Duty Cycle
Clear Timer,
CCP1 pin and
latch D.C.
SIMPLIFIED PWM BLOCK
DIAGRAM
PWM OUTPUT
TMR2 = PR2
CCP1CON<5:4>
R
S
Q
TRISC<2>
Advance Information
RC2/CCP1
14.5.1
The PWM period is specified by writing to the PR2
register. The PWM period can be calculated by the
formula:
where PWM frequency is defined as 1 / [PWM period].
When TMR2 is equal to PR2, the following three events
occur on the next increment cycle:
• TMR2 is cleared
• The CCP1 pin is set (exception: if PWM duty
• The PWM duty cycle is latched from CCPR1L into
14.5.2
The PWM duty cycle is specified by writing to the
CCPR1L register and to the CCP1CON<5:4> bits. Up
to 10-bit resolution is available. The CCPR1L contains
the eight MSbs and the CCP1CON<5:4> contains the
two LSbs. This 10-bit value is represented by
CCPR1L:CCP1CON<5:4>. The following equation is
used to calculate the PWM duty cycle in time:
CCPR1L and CCP1CON<5:4> can be written to at any
time, but the duty cycle value is not latched into
CCPR1H until after a match between PR2 and TMR2
occurs (i.e., the period is complete). In PWM mode,
CCPR1H is a read-only register.
The CCPR1H register and a 2-bit internal latch are
used to double buffer the PWM duty cycle. This double
buffering is essential for glitchless PWM operation.
When the CCPR1H and 2-bit latch match TMR2, con-
catenated with an internal 2-bit Q clock or 2 bits of the
TMR2 prescaler, the CCP1 pin is cleared.
The maximum PWM resolution (bits) for a given PWM
frequency is given by the equation:
cycle = 0%, the CCP1 pin will not be set)
CCPR1H
Note:
Note:
PWM period =
PWM duty cycle =
PWM Resolution (max)
The Timer2 postscaler (see Section 12.1)
is not used in the determination of the
PWM frequency. The postscaler could be
used to have a servo update rate at a dif-
ferent frequency than the PWM output.
If the PWM duty cycle value is longer than
the PWM period, the CCP1 pin will not be
cleared.
PWM PERIOD
PWM DUTY CYCLE
[(PR2) + 1] • 4 • T
(TMR2 prescale value)
(CCPR1L:CCP1CON<5:4>) •
T
OSC
2001 Microchip Technology Inc.
=
• (TMR2 prescale value)
log
-----------------------------bits
log
---------------
F
F
PWM
OSC
2
OSC
•
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