PIC18F2539-I/SP Microchip Technology, PIC18F2539-I/SP Datasheet - Page 184

• Manufacturer Part Number: PIC18F2539-I/SP
• Description: IC MCU FLASH 12KX16 EE A/D 28DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2539-I/SP

• Core Size: 8-Bit
• Program Memory Size: 24KB (12K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1408 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Controller Family/series: PIC18
• No. Of I/o's: 21
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 1.375KB
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1408 B
• Interface Type: I2C, SPI, AUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: DV164005, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 5 Channel
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: DVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
• Lead Free Status / Rohs Status: Details

PIC18FXX39
REGISTER 18-2:
DS30485A-page 182
bit 7
bit 6
bit 5-4
bit 3-0
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
Legend:
R = Readable bit
- n = Value at POR
bit 7
A = Analog input
C/R = # of analog input channels / # of A/D voltage references
<ADCS2>
Note:
ADCON1
PCFG
<3:0>
0000
0001
0010
0011
0100
0101
011x
1000
1001
1010
1011
1100
1101
1110
1111
ADFM
R/W-0
ADCON1 REGISTER
0
0
0
0
1
1
1
1
AN7
On any device RESET, the port pins that are multiplexed with analog functions (ANx) are
forced to be an analog input.
D
D
D
D
D
D
D
D
D
D
D
D
A
A
A
<ADCS1:ADCS0>
ADCS2
R/W-0
ADCON0
AN6
D
D
D
D
D
D
D
D
D
D
D
D
A
A
A
D = Digital I/O
00
01
10
11
00
01
10
11
AN5
D
D
D
D
D
D
D
D
D
A
A
A
A
A
A
W = Writable bit
‘1’ = Bit is set
U-0
—
Preliminary
AN4
D
D
D
D
D
D
F
F
F
F
F
F
F
F
A
A
A
A
A
A
A
A
A
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
A
A
A
D
A
D
U-0
—
+
+
+
+
+
+
+
+
+
V
V
V
V
V
AN2
REF
REF
REF
REF
REF
D
D
D
D
A
A
A
A
A
A
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
-
-
-
-
-
PCFG3
R/W-0
Clock Conversion
AN1
D
D
D
A
A
A
A
A
A
A
A
A
A
A
A
AN0
PCFG2
R/W-0
A
A
A
A
A
A
D
A
A
A
A
A
A
A
A
 2002 Microchip Technology Inc.
V
AN3
AN3
AN3
AN3
AN3
AN3
AN3
AN3
AN3
V
V
V
V
V
REF
—
DD
DD
DD
DD
DD
x = Bit is unknown
+
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