PIC18F87K22-I/PTRSL Microchip Technology Inc., PIC18F87K22-I/PTRSL Datasheet - Page 357

• Manufacturer Part Number: PIC18F87K22-I/PTRSL
• Description: 128kB Flash, 4kB RAM, 1kB EE, nanoWatt XLP, GP, 80 TQFP 12x12x1mm TRAY
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F87K22-I/PTRSL

• A/d Inputs: 24-Channel, 12-Bit
• Comparators: 3
• Cpu Speed: 16 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 69
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 80-pin TQFP
• Programmable Memory: 128K Bytes
• Ram Size: 3.8K Bytes
• Speed: 64 MHz
• Temperature Range: –40 to 125 °C
• Timers: 6-8-bit, 5-16-bit
• Voltage, Range: 1.8-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

The ANCONx registers are used to configure the
operation of the I/O pin associated with each analog
channel. Clearing an ANSELx bit configures the
corresponding pin (ANx) to operate as a digital only I/O.
Setting a bit configures the pin to operate as an analog
input for either the A/D Converter or the comparator
module, with all digital peripherals disabled and digital
inputs read as ‘ 0 ’.
REGISTER 23-8:
REGISTER 23-9:
 2011 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
Note 1:
ANSEL15
ANSEL7
R/W-1
R/W-1
(1)
AN15 through AN12 and AN20 to AN23 are implemented only on 80-pin devices. For 64-pin devices, the
corresponding ANSELx bits are still implemented for these channels, but have no effect.
ANSEL<7:0>: Analog Port Configuration bits (AN7 and AN0)
1 = Pin configured as an analog channel; digital input is disabled and any inputs read as ‘ 0 ’
0 = Pin configured as a digital port
ANSEL<15:8>: Analog Port Configuration bits (AN15 through AN8)
1 = Pin configured as an analog channel, digital input is disabled and any inputs read as ‘ 0 ’
0 = Pin configured as a digital port
ANSEL14
ANSEL6
R/W-1
R/W-1
ANCON0: A/D PORT CONFIGURATION REGISTER 0
ANCON1: A/D PORT CONFIGURATION REGISTER 1
(1)
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
ANSEL13
ANSEL5
R/W-1
R/W-1
(1)
ANSEL12
ANSEL4
R/W-1
R/W-1
(1)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
PIC18F87K22 FAMILY
ANSEL11
ANSEL3
R/W-1
R/W-1
As a rule, I/O pins that are multiplexed with analog
inputs default to analog operation on any device Reset.
ANSEL10
ANSEL2
R/W-1
R/W-1
x = Bit is unknown
x = Bit is unknown
ANSEL1
ANSEL9
R/W-1
R/W-1
DS39960C-page 357
ANSEL0
ANSEL8
R/W-1
R/W-1
bit 0
bit 0