PIC18F4431-E/PT Microchip Technology, PIC18F4431-E/PT Datasheet - Page 113

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

Specifications of PIC18F4431-E/PT

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K x 16)
• Oscillator Type: Internal
• 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: 36
• 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
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC18
• No. Of I/o's: 36
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TABLE 10-1:
TABLE 10-2:
 2003 Microchip Technology Inc.
PORTA
LATA
TRISA
ADCON1
ANSEL0
ANSEL1
Legend:
Note 1:
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/AN4/CAP3/QEB
RA5/AN5/LVDIN
OSC2/CLKO/RA6
OSC1/CLKI/RA7
Legend: TTL = TTL input, ST = Schmitt Trigger input
Name
2:
x = unknown, u = unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by PORTA.
RA7:RA6 and their associated latch and data direction bits are enabled as I/O pins based on oscillator
configuration; otherwise, they are read as ‘0’.
ANS5 through ANS8 are available only on the PIC18F4X31 devices.
Name
REF
REF
TRISA7
LATA7
ANS7
RA7
VCFG1
Bit 7
-/CAP1/INDX
+/CAP2/QEA
—
PORTA FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
(1)
(2)
(1)
(1)
TRISA6
LATA6
ANS6
RA6
VCFG0
Bit 6
—
(1)
(2)
(1)
(1)
Bit #
bit 0
bit 1
bit 2
bit 3
bit 4
bit 5
bit 6
bit 7
LATA Data Output Register
PORTA Data Direction Register
ANS5
Bit 5
RA5
—
—
(2)
TTL/ST
TTL/ST
TTL/ST
Buffer
TTL
TTL
TTL
TTL
TTL
PIC18F2331/2431/4331/4431
FIFOEN
ANS4
Bit 4
RA4
—
Preliminary
input.
Channel A input.
B input.
Input/output or analog input.
Input/output or analog input.
Input/output, analog input, V
Input/output, analog input, V
Input/output, analog input, capture input, or Quadrature Channel
Input/output, analog input, or low-voltage detect input.
OSC2, clock output or I/O pin.
OSC1, clock input or I/O pin.
BFEMT
ANS3
Bit 3
RA3
—
BFOVFL
ANS2
Bit 2
RA2
—
ADPNT1
ANS1
Bit 1
RA1
—
Function
REF
REF
ANS8
ADPNT0
-, capture input, or QEI Index
+, capture input, or Quadrature
ANS0
Bit 0
RA0
(2)
xx0x 0000
xxxx xxxx
1111 1111
00-1 0000
1111 1111
---- ---1
POR, BOR
Value on
DS39616B-page 111
uu0u 0000
uuuu uuuu
1111 1111
00-1 0000
1111 1111
---- ---1
Value on
all other
Resets