PIC18F2431-E/SP Microchip Technology, PIC18F2431-E/SP Datasheet - Page 178

• Manufacturer Part Number: PIC18F2431-E/SP
• Description: IC MCU FLASH 8KX16 28-DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2431-E/SP

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K 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

PIC18F2331/2431/4331/4431
REGISTER 18-1:
REGISTER 18-2:
DS39616D-page 178
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-4
bit 3-2
bit 1-0
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5-0
PTOPS3
R/W-0
R/W-0
PTEN
PTOPS<3:0>: PWM Time Base Output Postscale Select bits
0000 = 1:1 Postscale
0001 = 1:2 Postscale
.
.
.
1111 = 1:16 Postscale
PTCKPS<1:0>: PWM Time Base Input Clock Prescale Select bits
00 = PWM time base input clock is F
01 = PWM time base input clock is F
10 = PWM time base input clock is F
11 = PWM time base input clock is F
PTMOD<1:0>: PWM Time Base Mode Select bits
11 = PWM time base operates in a Continuous Up/Down Count mode with interrupts for double PWM
10 = PWM time base operates in a Continuous Up/Down Count mode
01 = PWM time base configured for Single-Shot mode
00 = PWM time base operates in a Free-Running mode
PTEN: PWM Time Base Timer Enable bit
1 = PWM time base is on
0 = PWM time base is off
PTDIR: PWM Time Base Count Direction Status bit
1 = PWM time base counts down
0 = PWM time base counts up
Unimplemented: Read as ‘0’
PTOPS2
PTDIR
R/W-0
R-0
updates
PTCON0: PWM TIMER CONTROL REGISTER 0
PTCON1: PWM TIMER CONTROL REGISTER 1
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
PTOPS1
R/W-0
U-0
—
PTOPS0
R/W-0
U-0
—
OSC
OSC
OSC
OSC
/4 (1:1 prescale)
/16 (1:4 prescale)
/64 (1:16 prescale)
/256 (1:64 prescale)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
PTCKPS1
R/W-0
U-0
—
PTCKPS0
R/W-0
U-0
—
 2010 Microchip Technology Inc.
x = Bit is unknown
x = Bit is unknown
PTMOD1
R/W-0
U-0
—
PTMOD0
R/W-0
U-0
—
bit 0
bit 0