PIC18F4431-I/PT Microchip Technology Inc., PIC18F4431-I/PT Datasheet - Page 273
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PIC18F4431-I/PT
Manufacturer Part Number
PIC18F4431-I/PT
Description
Microcontroller; 16 KB Flash; 768 RAM; 256 EEPROM; 36 I/O; 44-Pin TQFP
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F4431-IPT.pdf
(396 pages)
Specifications of PIC18F4431-I/PT
A/d Inputs
9-Channel, 10-Bit
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
36
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
44-pin TQFP
Programmable Memory
16K Bytes
Ram Size
768 Bytes
Speed
40 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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REGISTER 22-4:
2003 Microchip Technology Inc.
bit 7-6
bit 5
bit 4
bit 3
bit 2
bit 1-0
Unimplemented: Read as ‘0’
T1OSCMX: Timer1 Oscillator Mode bit
1 = Low power Timer1 operation when microcontroller is in Sleep mode.
0 = Standard (legacy) Timer1 oscillator operation.
HPOL
1 = PWM 1, 3, 5 and 7 are active-high (default)
0 = PWM 1, 3, 5 and 7 are active-low
LPOL
1 = PWM 0, 2, 4 and 6 are active-high (default)
0 = PWM 0, 2, 4 and 6 are active-low
PWMPIN
1 = PWM outputs disabled upon Reset (default)
0 = PWM outputs drive active states upon Reset
Unimplemented: Read as ‘0’
Legend:
R = Readable bit
- n = Value when device is unprogrammed
bit 7
CONFIG3L: CONFIGURATION REGISTER 3 LOW (BYTE ADDRESS 300004h)
Note 1: Polarity control bits HPOL and LPOL define PWM signal output active and inactive
U-0
—
(1)
(1
)
2: PWM6 and PWM7 output channels are only available on the PIC18F4X21 devices.
3: When PWMPIN = 0, PWMEN<2:0> = 101 if device has eight PWM output pins (40
: Low-Side Transistors Polarity bit (i.e., even PWM output polarity control bit)
: High-Side Transistors Polarity bit (i.e., odd PWM output polarity control bit )
(2)
: PWM output pins Reset state control bit
states; PWM states generated by the fault inputs or PWM manual override.
and 44-pin devices) and PWMEN<2:0> = 100 if the device has six PWM output pins
(28-pin device). PWM output polarity is defined by HPOL and LPOL.
—
U
PIC18F2331/2431/4331/4431
T1OSCMX
P = Programmable bit
R/P-1
Preliminary
HPOL
R/P-1
(3)
R/P-1
LPOL
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
PWMPIN
R/P-1
DS39616B-page 271
—
U
—
U
bit 0
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