PIC18C242/JW Microchip Technology, PIC18C242/JW Datasheet - Page 168

• Manufacturer Part Number: PIC18C242/JW
• Description: IC MCU EPROM 8KX16 A/D 28CDIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Cr

Specifications of PIC18C242/JW

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: EPROM, UV
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-CDIP (0.300", 7.62mm) Window
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

PIC18CXX2
REGISTER 16-2:
DS39026C-page 166
bit 7
bit 6
bit 5-4
bit 3-0
Legend:
R = Readable bit
- n = Value at POR reset
Note:
ADCON1 REGISTER
ADFM: A/D Result Format Select bit
1 = Right justified. Six (6) Most Significant bits of ADRESH are read as ’0’.
0 = Left justified. Six (6) Least Significant bits of ADRESL are read as ’0’.
ADCS2: A/D Conversion Clock Select bit (ADCON1 bits in bold)
Unimplemented: Read as '0'
PCFG3:PCFG0: A/D Port Configuration Control bits
bit 7
A = Analog input D = Digital I/O
C/R = # of analog input channels/# of A/D voltage references
<ADCS2>
PCFG
ADCON1
ADFM
R/W-0
0000
0001
0010
0011
0100
0101
011x
1000
1001
1010
1011
1100
1101
1110
1111
0
0
0
0
1
1
1
1
On any device RESET, the port pins that are multiplexed with analog functions (ANx) are
forced to be an analog input.
AN7
A
A
D
D
D
D
D
A
D
D
D
D
D
D
D
<ADCS1:ADCS0>
ADCS2
R/W-0
AN6
ADCON0
D
D
D
D
D
D
D
D
D
D
D
D
A
A
A
00
01
10
11
00
01
10
11
AN5
W = Writable bit
’1’ = Bit is set
D
D
D
D
D
D
D
D
D
A
A
A
A
A
A
U-0
—
AN4
F
F
F
F
F
F
F
F
A
A
A
A
D
D
D
A
A
A
A
A
D
D
D
OSC
OSC
OSC
RC
OSC
OSC
OSC
RC
(clock derived from the internal A/D RC oscillator)
(clock derived from the internal A/D RC oscillator)
/2
/8
/32
/4
/16
/64
V
V
V
V
V
V
V
V
V
AN3
REF
REF
REF
REF
REF
REF
REF
REF
REF
U-0
A
A
A
D
A
D
—
+
+
+
+
+
+
+
+
+
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
V
V
V
V
V
AN2
REF
REF
REF
REF
REF
A
A
A
A
D
D
D
A
A
D
PCFG3
R/W-0
-
-
-
-
-
Clock Conversion
AN1
A
A
A
A
A
A
D
A
A
A
A
A
A
D
D
PCFG2
R/W-0
AN0
A
A
A
A
A
A
D
A
A
A
A
A
A
A
A
2000 Microchip Technology Inc.
V
x = Bit is unknown
AN3
AN3
AN3
AN3
AN3
AN3
AN3
AN3
AN3
V
V
V
V
V
REF
—
DD
DD
DD
DD
DD
PCFG1
R/W-0
+
V
AN2
AN2
AN2
AN2
AN2
V
V
V
V
V
V
V
V
V
REF
—
SS
SS
SS
SS
SS
SS
SS
SS
SS
-
PCFG0
R/W-0
C / R
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
bit 0