PIC18F4539T-E/ML Microchip Technology, PIC18F4539T-E/ML Datasheet - Page 183

• Manufacturer Part Number: PIC18F4539T-E/ML
• Description: IC PIC MCU FLASH 12KX16 44QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4539T-E/ML

• 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: 32
• Program Memory Size: 24KB (12K x 16)
• 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 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-QFN
• 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: 32
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 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: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18.0
The Analog-to-Digital (A/D) converter module has five
inputs for the PIC18F2X39 devices and eight for the
PIC18F4X39 devices. This module has the ADCON0
and ADCON1 register definitions that are compatible
with the mid-range A/D module.
The A/D allows conversion of an analog input signal to
a corresponding 10-bit digital number.
REGISTER 18-1:
 2002 Microchip Technology Inc.
COMPATIBLE 10-BIT
ANALOG-TO-DIGITAL
CONVERTER (A/D) MODULE
bit 7-6
bit 5-3
bit 2
bit 1
bit 0
ADCON0 REGISTER
Legend:
R = Readable bit
- n = Value at POR
ADCS1:ADCS0: A/D Conversion Clock Select bits (ADCON0 bits in bold)
CHS2:CHS0: Analog Channel Select bits
000 = Channel 0 (AN0)
001 = Channel 1 (AN1)
010 = Channel 2 (AN2)
011 = Channel 3 (AN3)
100 = Channel 4 (AN4)
101 = Channel 5 (AN5)
110 = Channel 6 (AN6)
111 = Channel 7 (AN7)
GO/DONE: A/D Conversion Status bit
When ADON = 1:
1 = A/D conversion in progress (setting this bit starts the A/D conversion, which is
0 = A/D conversion not in progress
Unimplemented: Read as '0'
ADON: A/D On bit
1 = A/D converter module is powered up
0 = A/D converter module is shut-off and consumes no operating current
bit 7
ADCS1
R/W-0
<ADCS2>
ADCON1
Note 1: These channels are unimplemented on PIC18F2X39 devices. Do not select any
automatically cleared by hardware when the A/D conversion is complete)
0
0
0
0
1
1
1
1
unimplemented channel.
ADCS0
<ADCS1:ADCS0>
R/W-0
ADCON0
00
01
10
11
00
01
10
11
(1)
(1)
(1)
R/W-0
CHS2
Preliminary
W = Writable bit
‘1’ = Bit is set
F
F
F
F
F
F
F
F
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
R/W-0
CHS1
The A/D module has four registers:
• A/D Result High Register (ADRESH)
• A/D Result Low Register (ADRESL)
• A/D Control Register 0 (ADCON0)
• A/D Control Register 1 (ADCON1)
The ADCON0 register, shown in Register 18-1, con-
trols the operation of the A/D module. The ADCON1
register, shown in Register 18-2, configures the
functions of the port pins.
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
CHS0
Clock Conversion
GO/DONE
PIC18FXX39
R/W-0
x = Bit is unknown
DS30485A-page 181
U-0
—
R/W-0
ADON
bit 0