 English |
|
|
|
|
|
|
|
| PIC18F87K22 Datasheet, PDF (357/548 Pages) Microchip Technology – 64/80-Pin, High-Performance, 1-Mbit Enhanced Flash Microcontrollers with 12-Bit A/D and nanoWatt XLP Technology | |||
| |||
| ◁ |
FIGURE 23-4:
A/D BLOCK DIAGRAM
12-Bit
A/D
Converter
PIC18F87K22 FAMILY
CHS<4:0>
11111
11110
11101
11100
11011
11010
11001
11000
10111
10110
1.024V Band Gap
VDDCORE
Reserved
Temperature Diode
Reserved CTMU
(Unimplemented)
(Unimplemented)
(Unimplemented)
(Unimplemented)
AN23(1)
AN22(1)
00100
AN4
00011
AN3
00010
AN2
00001
AN1
00000
AN0
Positive Input Voltage
Negative Input Voltage
Reference
Voltage
VREF-
VREF+
VNCFG
VCFG<1:0>
11
10
01
00
Internal VREF+
(4.096V)
Internal VREF+
(2.048V)
AN3
VDD
AN2
CHSN<2:0>
111
110
001
000
AN6
AN5
AN0
AVSS
VSS(2)
Note 1: Channels, AN15 through AN12, and AN20 through AN23, are not available on 64-pin devices.
2: I/O pins have diode protection to VDD and VSS.
ï£ 2010 Microchip Technology Inc.
Preliminary
DS39960B-page 357
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese