PIC18F13K22-I/SO Microchip Technology, PIC18F13K22-I/SO Datasheet - Page 210

• Manufacturer Part Number: PIC18F13K22-I/SO
• Description: IC MCU 8BIT 8KB FLASH 20SOIC
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F13K22-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 8KB (4K x 16)
• Package / Case: 20-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 64MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C, MSSP, SPI, USART
• Maximum Clock Frequency: 64 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 4
• Operating Supply Voltage: 1.8 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: PG164130, DV164035, DV244005, DV164005
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Package: 20SOIC W
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 64 MHz
• A/d Bit Size: 10 bit
• A/d Channels Available: 12
• Height: 2.05 mm
• Length: 12.8 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V, 2.7 V
• Width: 7.5 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC18F1XK22/LF1XK22
16.2
16.2.1
To enable the ADC module, the ADON bit of the
ADCON0 register must be set to a ‘1’. Setting the GO/
DONE bit of the ADCON0 register to a ‘1’ will, depend-
ing on the ACQT bits of the ADCON2 register, either
immediately start the Analog-to-Digital conversion or
start an acquisition delay followed by the Analog-to-
Digital conversion.
FIGURE 16-3:
FIGURE 16-4:
DS41365D-page 210
(Holding capacitor continues
acquiring input)
Set GO bit
1
T
CY
Set GO bit
T
ADC Operation
Holding capacitor is disconnected from analog input (typically 100 ns)
ACQT
Acquisition
Automatic
- T
STARTING A CONVERSION
2
Time
AD
Conversion starts
Cycles
T
AD
3
1 T
A/D CONVERSION T
A/D CONVERSION T
AD
b9
4
2 T
(Holding capacitor is disconnected from analog input)
Conversion starts
AD
b8
1
3 T
b9
AD
2
b7
4 T
On the following cycle:
ADRESH:ADRESL is loaded, GO bit is cleared,
ADIF bit is set, holding capacitor is connected to analog input.
AD
b8
3
b6
AD
AD
5 T
On the following cycle:
ADRESH:ADRESL is loaded, GO bit is cleared,
ADIF bit is set, holding capacitor is connected to analog input.
CYCLES (A
CYCLES (A
Preliminary
AD
b5
b7
4
6 T
T
AD
b4
5
b6
AD
7 T
Cycles
Figure 16-3 shows the operation of the A/D converter
after the GO bit has been set and the ACQT<2:0> bits
are cleared. A conversion is started after the following
instruction to allow entry into SLEEP mode before the
conversion begins.
Figure 16-4 shows the operation of the A/D converter
after the GO bit has been set and the ACQT<2:0> bits
are set to ‘010’ which selects a 4 T
before the conversion starts.
CQT
AD
CQT
b3
b5
Note:
6
8
<2:0> = 000, T
<2:0> = 010, T
T
AD
b4
b2
7
9 T
The GO/DONE bit should not be set in the
same instruction that turns on the ADC.
Refer to Section 16.2.9 “A/D Conver-
sion Procedure”.
AD
b3
8
b1
10
T
AD
ACQ
b0
b2
9
ACQ
 2010 Microchip Technology Inc.
11
2 T
= 0)
10
= 4 T
Discharge
b1
AD
AD
AD
b0
11
)
acquisition time
2 T
Discharge
AD