PIC18F4520-I/P Microchip Technology Inc., PIC18F4520-I/P Datasheet - Page 226

• Manufacturer Part Number: PIC18F4520-I/P
• Description: 40 Pin, 32 KB Flash, 1536 RAM, 36 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4520-I/P

• A/d Inputs: 13-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 32K Bytes
• Ram Size: 1.5K 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

PIC18F2420/2520/4420/4520
REGISTER 19-2:
DS39631A-page 224
bit 7-6
bit 5
bit 4
bit 3-0
ADCON1 REGISTER
bit 7
Unimplemented: Read as ‘0’
VCFG1: Voltage Reference Configuration bit (V
1 = V
0 = V
VCFG0: Voltage Reference Configuration bit (V
1 = V
0 = V
PCFG3:PCFG0: A/D Port Configuration Control bits:
Legend:
R = Readable bit
-n = Value at POR
A = Analog input
PCFG3:
PCFG0
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Note 1: The POR value of the PCFG bits depends on the value of the PBADEN con-
U-0
—
REF
REF
SS
DD
(1)
(1)
2: AN5 through AN7 are available only on 40/44-pin devices.
- (AN2)
+ (AN3)
figuration bit. When PBADEN = 1, PCFG<3:0> = 0000; when PBADEN = 0,
PCFG<3:0> = 0111.
D
D
D
D
D
D
D
D
D
D
D
D
D
A
A
A
U-0
—
A
A
A
A
D
D
D
D
D
D
D
D
D
D
D
D
VCFG1
R/W-0
D
D
D
D
D
D
D
D
D
D
D
A
A
A
A
A
Preliminary
W = Writable bit
‘1’ = Bit is set
D
D
D
D
D
D
D
D
D
D
A
A
A
A
A
A
VCFG0
R/W-0
A
A
A
A
A
A
A
D
D
D
D
D
D
D
D
D
D = Digital I/O
D
D
D
D
D
D
D
D
A
A
A
A
A
A
A
A
REF
REF
R/W-0
PCFG3
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
- source)
+ source)
D
D
D
D
D
D
D
A
A
A
A
A
A
A
A
A
(1)
A
A
A
A
A
A
A
A
A
A
D
D
D
D
D
D
PCFG2
R/W
 2004 Microchip Technology Inc.
D
D
D
D
D
A
A
A
A
A
A
A
A
A
A
A
(1)
A
A
A
A
A
A
A
A
A
A
A
A
D
D
D
D
x = Bit is unknown
PCFG1
R/W
A
A
A
A
A
A
A
A
A
A
A
A
A
D
D
D
(1)
A
A
A
A
A
A
A
A
A
A
A
A
A
A
D
D
PCFG0
R/W
D
bit 0
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
(1)