PIC18F23K20-E/ML Microchip Technology, PIC18F23K20-E/ML Datasheet - Page 147
![8 KB Enh Flash, 768 RAM, 25 I/O Pb Free, Nanowatt XLP 28 QFN 6x6mm TUBE](/photos/6/81/68120/150-28-qfn_sml.jpg)
PIC18F23K20-E/ML
Manufacturer Part Number
PIC18F23K20-E/ML
Description
8 KB Enh Flash, 768 RAM, 25 I/O Pb Free, Nanowatt XLP 28 QFN 6x6mm TUBE
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18F25K20T-ISS.pdf
(42 pages)
2.PIC18F25K20T-ISS.pdf
(456 pages)
3.PIC18F23K20-ISS.pdf
(10 pages)
Specifications of PIC18F23K20-E/ML
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
24
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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11.3
In Compare mode, the 16-bit CCPRx register value is
constantly compared against either the TMR1 or TMR3
register pair value. When a match occurs, the CCPx pin
can be:
• driven high
• driven low
• toggled (high-to-low or low-to-high)
• remain unchanged (that is, reflects the state of the
The action on the pin is based on the value of the mode
select bits (CCPxM<3:0>). At the same time, the inter-
rupt flag bit, CCPxIF, is set.
11.3.1
The user must configure the CCPx pin as an output by
clearing the appropriate TRIS bit.
FIGURE 11-2:
2010 Microchip Technology Inc.
I/O latch)
Note:
Compare Mode
CCP PIN CONFIGURATION
Clearing the CCPxCON register will force
the CCPx compare output latch (depend-
ing on device configuration) to the default
low level. This is not the PORTB or
PORTC I/O data latch.
0
1
COMPARE MODE OPERATION BLOCK DIAGRAM
CCPR2H
CCPR1H
TMR1H
TMR3H
T3CCP1
Comparator
Comparator
CCPR2L
CCPR1L
TMR1L
TMR3L
Compare
Compare
Match
Match
0
1
Set CCP1IF
T3CCP2
Set CCP2IF
(Timer1/Timer3 Reset, A/D Trigger)
11.3.2
Timer1 and/or Timer3 must be running in Timer mode
or Synchronized Counter mode if the CCP module is
using the compare feature. In Asynchronous Counter
mode, the compare operation will not work reliably.
11.3.3
When the Generate Software Interrupt mode is chosen
(CCPxM<3:0> = 1010), the corresponding CCPx pin is
not affected. Only the CCPxIF interrupt flag is affected.
11.3.4
Both CCP modules are equipped with a Special Event
Trigger. This is an internal hardware signal generated
in Compare mode to trigger actions by other modules.
The Special Event Trigger is enabled by selecting
the
(CCPxM<3:0> = 1011).
For either CCP module, the Special Event Trigger resets
the timer register pair for whichever timer resource is
currently assigned as the module’s time base. This
allows the CCPRx registers to serve as a programmable
period register for either timer.
The Special Event Trigger for CCP2 can also start an
A/D conversion. In order to do this, the A/D converter
must already be enabled.
PIC18F2XK20/4XK20
(Timer1/Timer3 Reset)
Special Event Trigger
Special Event Trigger
CCP1CON<3:0>
CCP2CON<3:0>
Compare
Output
Output
Logic
4
Logic
4
TIMER1/TIMER3 MODE SELECTION
SOFTWARE INTERRUPT MODE
SPECIAL EVENT TRIGGER
Special
S
R
S
R
Q
Q
Output Enable
Output Enable
Event
TRIS
TRIS
DS41303G-page 147
Trigger
CCP1 pin
CCP2 pin
mode
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