PIC16F872-E/SO Microchip Technology, PIC16F872-E/SO Datasheet - Page 82

• Manufacturer Part Number: PIC16F872-E/SO
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SOP,28PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F872-E/SO

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F872
REGISTER 10-2:
DS30221C-page 80
bit 7
bit 6-4
bit 3-0
ADCON1 REGISTER (ADDRESS: 9Fh)
A = Analog input
D = Digital I/O
bit 7
ADFM: A/D Result Format Select bit
1 = Right justified. Six Most Significant bits of ADRESH are read as ‘0’.
0 = Left justified. Six Least Significant bits of ADRESL are read as ‘0’.
Unimplemented: Read as '0'
PCFG3:PCFG0: A/D Port Configuration Control bits:
Legend:
R = Readable bit
- n = Value at POR
PCFG3:
ADFM
PCFG0
Note 1: This column indicates the number of analog channels available as A/D inputs and
0000
0001
0010
0011
0100
0101
011x
1000
1001
1010
1011
1100
1101
1110
1111
U-0
the number of analog channels used as voltage reference inputs.
AN4
RA5
U-0
—
A
A
A
A
D
D
D
A
A
A
A
A
D
D
D
V
V
V
V
V
V
V
V
V
AN3
RA3
R/W-0
REF
REF
REF
REF
REF
REF
REF
REF
REF
D
D
A
A
A
A
—
W = Writable bit
’1’ = Bit is set
+
+
+
+
+
+
+
+
+
V
V
V
V
V
AN2
RA2
REF
REF
REF
REF
REF
A
A
A
A
D
D
D
A
A
D
U-0
—
-
-
-
-
-
AN1
RA1
A
A
A
A
A
A
D
A
A
A
A
A
A
D
D
PCFG3
R/W-0
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
AN0
RA0
D
A
A
A
A
A
A
A
A
A
A
A
A
A
A
PCFG2
R/W-0
V
© 2006 Microchip Technology Inc.
RA3
RA3
RA3
RA3
RA3
RA3
RA3
RA3
RA3
V
V
V
V
V
V
REF
DD
DD
DD
DD
DD
DD
+
x = Bit is unknown
PCFG1
R/W-0
V
RA2
RA2
RA2
RA2
RA2
V
V
V
V
V
V
V
V
V
V
REF
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
-
PCFG0
Refs
C
R/W-0
HAN
8/0
7/1
5/0
4/1
3/0
2/1
0/0
6/2
6/0
5/1
4/2
3/2
2/2
1/0
1/2
(1)
bit 0
/