PIC18F2331-E/SP Microchip Technology, PIC18F2331-E/SP Datasheet - Page 208
![IC MCU FLASH 4KX16 28-DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
PIC18F2331-E/SP
Manufacturer Part Number
PIC18F2331-E/SP
Description
IC MCU FLASH 4KX16 28-DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC18F2331-ISO.pdf
(392 pages)
4.PIC18F2331-ISO.pdf
(8 pages)
5.PIC18F2331-ISO.pdf
(6 pages)
6.PIC18F2331-ISO.pdf
(16 pages)
7.PIC18F4331-EP.pdf
(400 pages)
Specifications of PIC18F2331-E/SP
Core Size
8-Bit
Program Memory Size
8KB (4K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
Number Of I /o
24
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-DIP (0.300", 7.62mm)
Controller Family/series
PIC18
No. Of I/o's
24
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
40MHz
No. Of Timers
4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB18F4431 - BOARD DAUGHTER ICEPIC3AC164035 - MODULE SKT FOR 18F2X31 28SOICDVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC16F818-ISO PDF datasheet #2
- PIC18F2331-ISO PDF datasheet #3
- PIC18F2331-ISO PDF datasheet #4
- PIC18F2331-ISO PDF datasheet #5
- PIC18F2331-ISO PDF datasheet #6
- PIC18F4331-EP PDF datasheet #7
- Current page: 208 of 400
- Download datasheet (7Mb)
PIC18F2331/2431/4331/4431
17.11 PWM Output and Polarity Control
There are three device Configuration bits associated
with the PWM module that provide PWM output pin
control defined in the CONFIG3L Configuration
register. They are:
• HPOL
• LPOL
• PWMPIN
These three Configuration bits work in conjunction with
the three PWM Enable bits (PWMEN2:PWMEN0) in
the PWMCON0 register. The Configuration bits and
PWM enable bits ensure that the PWM pins are in the
correct states after a device Reset occurs.
17.11.1
The PWMEN2:PWMEN0 control bits enable each
PWM output pin as required in the application.
All PWM I/O pins are general purpose I/O. When a pair
of pins are enabled for PWM output, the PORT and
TRIS registers controlling the pins are disabled. Refer
to Figure 17-23 for details.
FIGURE 17-23:
DS39616C-page 206
OUTPUT PIN CONTROL
Note:
PWM Signal from Module
PWM Pin Enable
Data Bus
WR PORT
WR TRIS
RD TRIS
RD PORT
PWM I/O PIN BLOCK DIAGRAM
I/O pin has protection diodes to V
Data Latch
TRIS Latch
D
D
CK
CK
Q
Q
Q
Q
Preliminary
DD
and V
1
0
SS
. PWM polarity selection logic not shown for clarity.
17.11.2
The polarity of the PWM I/O pins is set during device
programming via the HPOL and LPOL Configuration
bits in the CONFIG3L Configuration register. The
HPOL Configuration bit sets the output polarity for the
high side PWM outputs: PWM1, PWM3, PWM5 and
PWM7. The polarity is active-high when HPOL is
cleared (= 0), and active-low when it is set (= 1).
The LPOL Configuration bit sets the output polarity for
the low side PWM outputs: PWM0, PWM2, PWM4 and
PWM6. As with HPOL, they are active-high when LPOL
is cleared and active-low when it is set.
All output signals generated by the PWM module are
referenced to the polarity control bits, including those
generated by Fault inputs or manual override (see
Section 17.10 “PWM Output Override”).
The default polarity Configuration bits have the PWM
I/O pins in active-high output polarity.
Q
EN
D
OUTPUT POLARITY CONTROL
V
V
P
N
DD
SS
© 2007 Microchip Technology Inc.
TTL or
Schmitt
Trigger
I/O Pin
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