PIC18F4431-E/ML Microchip Technology, PIC18F4431-E/ML Datasheet - Page 22

• Manufacturer Part Number: PIC18F4431-E/ML
• Description: IC MCU FLASH 8KX16 44QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4431-E/ML

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 16KB (8K x 16)
• 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 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F2331/2431/4331/4431
TABLE 1-3:
DS39616D-page 22
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2/
FLTA
RC2/CCP1/FLTB
RC3/T0CKI/T5CKI/
INT0
RC4/INT1/SDI/SDA
RC5/INT2/SCK/SCL
RC6/TX/CK/SS
RC7/RX/DT/SDO
Legend: TTL = TTL compatible input
Note 1:
RC0
T1OSO
T1CKI
RC1
T1OSI
CCP2
FLTA
RC2
CCP1
FLTB
RC3
T0CKI
T5CKI
INT0
RC4
INT1
SDI
SDA
RC5
INT2
SCK
SCL
RC6
TX
CK
SS
RC7
RX
DT
SDO
Pin Name
2:
3:
(1)
(1)
(1)
(1)
(1)
(1)
(1)
ST
O
RC3 is the alternate pin for T0CKI/T5CKI; RC4 is the alternate pin for SDI/SDA; RC5 is the alternate pin
for SCK/SCL; RC7 is the alternate pin for SDO.
RD4 is the alternate pin for FLTA.
RD5 is the alternate pin for PWM4.
= Schmitt Trigger input with CMOS levels
= Output
PIC18F4331/4431 PINOUT I/O DESCRIPTIONS (CONTINUED)
PDIP TQFP QFN
15
16
17
18
23
24
25
26
Pin Number
32
35
36
37
42
43
44
1
34
35
36
37
42
43
44
1
Type
Pin
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
Buffer
CMOS
Type
I
I
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
—
2
2
—
—
C
C
PORTC is a bidirectional I/O port.
Digital I/O.
Timer1 oscillator output.
Timer1 external clock input.
Digital I/O.
Timer1 oscillator input.
Capture 2 input, Compare 2 output, PWM2 output.
Fault interrupt input pin.
Digital I/O.
Capture 1 input/Compare 1 output/PWM1 output.
Fault interrupt input pin.
Digital I/O.
Timer0 alternate clock input.
Timer5 alternate clock input.
External Interrupt 0.
Digital I/O.
External Interrupt 1.
SPI data in.
I
Digital I/O.
External Interrupt 2.
Synchronous serial clock input/output for SPI mode.
Synchronous serial clock input/output for I
Digital I/O.
EUSART asynchronous transmit.
EUSART synchronous clock (see related RX/DT).
SPI slave select input.
Digital I/O.
EUSART asynchronous receive.
EUSART synchronous data (see related TX/CK).
SPI data out.
2
CMOS = CMOS compatible input or output
I
P
C™ data I/O.
= Input
= Power
Description
 2010 Microchip Technology Inc.
2
C mode.