PIC18F4431-E/ML Microchip Technology, PIC18F4431-E/ML Datasheet - Page 241

• 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

REGISTER 21-2:
 2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-6
bit 5
bit 4
bit 3
bit 2
bit 1-0
VCFG1
R/W-0
VCFG<1:0>: A/D V
00 = V
01 = V
10 = V
11 = V
Unimplemented: Read as ‘0’
FIFOEN: FIFO Buffer Enable bit
1 = FIFO is enabled
0 = FIFO is disabled
BFEMT: Buffer Empty bit
1 = FIFO is empty
0 = FIFO is not empty (at least one of four locations has unread A/D result data)
BFOVFL: Buffer Overflow bit
1 = A/D result has overwritten a buffer location that has unread data
0 = A/D result has not overflowed
ADPNT<1:0>: Buffer Read Pointer Location bits
Designates the location to be read next.
00 = Buffer Address 0
01 = Buffer Address 1
10 = Buffer Address 2
11 = Buffer Address 3
VCFG0
R/W-0
REF
REF
REF
REF
ADCON1: A/D CONTROL REGISTER 1
+ = AV
+ = External V
+ = AV
+ = External V
W = Writable bit
‘1’ = Bit is set
DD
DD
REF
U-0
, V
, V
—
REF
REF
+ and A/D V
REF
REF
- = AV
- = External V
+, V
-, V
PIC18F2331/2431/4331/4431
REF
FIFOEN
SS
REF
R/W-0
REF
(AN2 and AN3 are analog inputs or digital I/O)
- = External V
- = AV
- Source Selection bits
REF
SS
- (AN3 is an analog input or digital I/O)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
(AN2 is an analog input or digital I/O)
BFEMT
R-0
REF
-
BFOVL
R-0
x = Bit is unknown
ADPNT1
R-0
DS39616D-page 241
ADPNT0
R-0
bit 0