PIC18F1230 MICROCHIP [Microchip Technology], PIC18F1230 Datasheet - Page 173
PIC18F1230
Manufacturer Part Number
PIC18F1230
Description
18/20/28-Pin, Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC18F1230.pdf
(312 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F1230-E/SS
Manufacturer:
Microchip Technology
Quantity:
135
Part Number:
PIC18F1230-I/ML
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
PIC18F1230-I/P
Manufacturer:
MICROCHIP
Quantity:
5
Part Number:
PIC18F1230-I/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
PIC18F1230-I/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
PIC18F1230-I/SS
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
PIC18F1230T-I/ML
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- Current page: 173 of 312
- Download datasheet (6Mb)
15.7
Figure 15-4 shows the operation of the A/D converter
after the GO/DONE bit has been set and the
ACQT2:ACQT0 bits are cleared. A conversion is
started after the following instruction to allow entry into
Sleep mode before the conversion begins.
Figure 15-5 shows the operation of the A/D converter
after the GO/DONE bit has been set, the ACQT2:ACQT0
bits are set to ‘010’ and a 4 T
selected before the conversion starts.
Clearing the GO/DONE bit during a conversion will abort
the current conversion. The A/D Result register pair will
NOT be updated with the partially completed A/D
conversion
ADRESH:ADRESL registers will continue to contain the
value of the last completed conversion (or the last value
written to the ADRESH:ADRESL registers).
FIGURE 15-4:
FIGURE 15-5:
© 2006 Microchip Technology Inc.
(Holding capacitor continues
acquiring input)
Set GO/DONE bit
1
Set GO/DONE bit
T
CY
A/D Conversions
Holding capacitor is disconnected from analog input (typically 100 ns)
T
ACQT
– T
Acquisition
Automatic
2
AD
Time
sample.
Conversion starts
Cycles
T
AD
3
1 T
A/D CONVERSION T
A/D CONVERSION T
AD
b9
This
4
2 T
Conversion starts
(Holding capacitor is disconnected)
AD
b8
AD
1
means
3 T
acquisition time is
AD
b7
b9
2
4 T
that
Advance Information
AD
b6
On the following cycle:
ADRESH:ADRESL are loaded, GO/DONE bit is cleared,
ADIF bit is set, holding capacitor is connected to analog input.
b8
3
AD
AD
5 T
On the following cycle:
ADRESH:ADRESL are loaded, GO/DONE bit is cleared,
ADIF bit is set, holding capacitor is connected to analog input.
CYCLES (ACQT<2:0> = 000, T
CYCLES (ACQT<2:0> = 010, T
the
AD
b5
b7
4
6 T
AD
b4
T
b6
5
AD
7 T
Cycles
After the A/D conversion is completed or aborted, a
2 T
started. After this wait, acquisition on the selected
channel is automatically started.
15.8
The discharge phase is used to initialize the value of
the capacitor array. The array is discharged before
every sample. This feature helps to optimize the unity-
gain amplifier, as the circuit always needs to charge the
capacitor array, rather than charge/discharge based on
previous measure values.
AD
b3
Note:
b5
AD
6
8
wait is required before the next acquisition can be
T
AD
b2
Discharge
b4
PIC18F1230/1330
7
9 T
The GO/DONE bit should NOT be set in
the same instruction that turns on the A/D.
AD
b1
b3
8
10
T
AD
b0
ACQ
ACQ
b2
9
11
T
= 0)
= 4 T
AD
Discharge
10
b1
1
AD
DS39758B-page 171
)
11
b0
T
Discharge
AD
1
Related parts for PIC18F1230
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
20-Pin USB Flash Microcontrollers
Manufacturer:
MICROCHIP [Microchip Technology]
Datasheet:
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
Microcontrollers (MCU) 48KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
Microcontrollers (MCU) 64KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 QFN 9x9x0.9mm T/R
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 TQFP 10x10x1mm T/R
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
128kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm T/
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 QFN 9x9x0.9mm TUBE
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 TQFP 10x10x1mm TRAY
Manufacturer:
Microchip Technology
Part Number:
Description:
128kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm TR
Manufacturer:
Microchip Technology
Part Number:
Description:
SURFACE MOUNT POWER INDUCTORS
Manufacturer:
RCD [RCD COMPONENTS INC.]
Datasheet: