PIC16F72-E/SP Microchip Technology, PIC16F72-E/SP Datasheet - Page 41
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC16F72-E/SP
Manufacturer Part Number
PIC16F72-E/SP
Description
28 PIN, 3.5KB STD FLASH, 128 RAM, 22 I/O,
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F818-ISO.pdf
(6 pages)
4.PIC16F72-ISO.pdf
(136 pages)
5.PIC16F72-ISO.pdf
(6 pages)
Specifications of PIC16F72-E/SP
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 5x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
28-DIP (0.300", 7.62mm)
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
I2C, SPI, SSP
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
22
Number Of Timers
3
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
ICE2000, DM163022
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit, 5 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
8.2 Compare Mode
In Compare mode, the 16-bit CCPR1 register value is
constantly compared against the TMR1 register pair
value. When a match occurs, the RC2/CCP1 pin is:
• Driven High
• Driven Low
• Remains Unchanged
The action on the pin is based on the value of control
bits CCP1M3:CCP1M0 (CCP1CON<3:0>). At the
same time, interrupt flag bit CCP1IF is set.
The output may become inverted when the mode of the
module is changed from Compare/Clear on Match
(CCPxM<3:0> = ‘1001’) to Compare/Set on Match
(CCPxM<3:0> = ‘1000’). This may occur as a result of
any operation that selectively clears bit CCPxM0, such
as a BCF instruction.
When this condition occurs, the output becomes
inverted when the instruction is executed. It will remain
inverted for all following Compare operations, until the
module is reset.
FIGURE 8-2:
© 2007 Microchip Technology Inc.
RC2/CCP1
pin
Special event trigger will:
• RESET Timer1, but not set interrupt flag bit TMR1IF
• Set bit GO/DONE (ADCON0<2>) bit, which starts an A/D
(PIR1<0>)
conversion
Output Enable
TRISC<2>
Q
Special Event Trigger
R
S
CCP1CON<3:0>
Mode Select
Output
COMPARE MODE
OPERATION BLOCK
DIAGRAM
Logic
(PIR1<2>)
Set Flag bit CCP1IF
Match
CCPR1H CCPR1L
TMR1H
Comparator
TMR1L
8.2.1
The user must configure the RC2/CCP1 pin as an
output by clearing the TRISC<2> bit.
8.2.2
Timer1 must be running in Timer mode or Synchro-
nized Counter mode, if the CCP module is using the
compare feature. In Asynchronous Counter mode, the
compare operation may not work.
8.2.3
When generate software interrupt is chosen, the CCP1
pin is not affected. Only a CCP interrupt is generated (if
enabled).
8.2.4
In this mode, an internal hardware trigger is generated
that may be used to initiate an action.
The special event trigger output of CCP1 resets the
TMR1 register pair. This allows the CCPR1 register to
effectively be a 16-bit programmable period register for
Timer1.
The special trigger output of CCP1 resets the TMR1
register pair, and starts an A/D conversion (if the A/D
module is enabled).
Note:
Note:
Clearing the CCP1CON register will force
the RC2/CCP1 compare output latch to the
default low level. This is not the data latch.
The special event trigger from the CCP1
module will not set interrupt flag bit
TMR1IF (PIR1<0>).
CCP PIN CONFIGURATION
TIMER1 MODE SELECTION
SOFTWARE INTERRUPT MODE
SPECIAL EVENT TRIGGER
PIC16F72
DS39597C-page 39