PIC18F4431-E/P Microchip Technology, PIC18F4431-E/P Datasheet - Page 253

• Manufacturer Part Number: PIC18F4431-E/P
• Description: IC MCU FLASH 8KX16 40DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4431-E/P

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Controller Family/series: PIC18
• No. Of I/o's: 36
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: EUSART, I2C, SPI, SSP
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 1 x 8
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 9 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DVA18XP400 - DEVICE ADAPTER 18F4220 PDIP 40LDACICE0206 - ADAPTER MPLABICE 40P 600 MIL
• Lead Free Status / Rohs Status: Details

21.9
Figure 21-3
after the GO/DONE 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. The internal A/D
RC oscillator must be selected to perform a conversion
in Sleep.
Figure 21-4
after the GO/DONE bit has been set, the ACQT<3:0>
bits are set to ‘010’ and a 4 T
selected before the conversion starts.
FIGURE 21-3:
FIGURE 21-4:
 2010 Microchip Technology Inc.
Note 1:
A/D Triggered
Note 1:
GO/DONE bit is
set and holding
cap is
disconnected
from analog
input
1
A/D Conversions
T
shows the operation of the A/D Converter
shows the operation of the A/D Converter
ACQT
Acquisition
Automatic
2
In Continuous modes, next conversion starts at the end of T
Time
Conversion time is a minimum of 11 T
Cycles
3
A/D CONVERSION T
A/D CONVERSION T
Conversion Starts
T
AD
b9
4
1 T
Conversion Starts
(Holding capacitor is disconnected)
AD
T
AD
AD
b8
b9
acquisition time is
2 T
1 T
AD
AD
b7
b8
3 T
2 T
PIC18F2331/2431/4331/4431
AD
AD
AD
AD
b6
b7
GO/DONE bit cleared on the rising edge of Q1 after the first Q3
following T
CYCLES (ACQT<2:0> = 000, T
CYCLES (ACQT<3:0> = 0010, T
4 T
3 T
GO/DONE bit cleared on the rising edge of Q1 after the first Q3
following T
AD
b5
AD
b6
AD
5 T
4 T
+ 2 T
AD
T
AD
AD
AD
b5
b4
AD
11 and result buffer is loaded.
CY
6 T
5 T
Clearing the GO/DONE bit during a conversion will
abort the current conversion. The resulting buffer loca-
tion will contain the partially completed A/D conversion
sample. This will not set the ADIF flag, therefore, the
user must read the buffer location before a conversion
sequence overwrites it.
After the A/D conversion is completed or aborted, a
2 T
started. After this wait, acquisition on the selected
channel is automatically started.
11 and result buffer is loaded.
Cycles
Note:
and a maximum of 11 T
AD
AD
AD
b4
b3
wait is required before the next acquisition can be
7 T
6 T
AD
b2
AD
AD
The GO/DONE bit should NOT be set in
the same instruction that turns on the A/D.
b3
8
7 T
12.
T
AD
AD
b2
b1
9 T
8
ACQ
ACQ
T
AD
AD
b1
b0
= 0)
AD
10
9 T
= 4 T
(1)
+ 6 T
T
(1)
AD
AD
b0
11
10
AD
CY
DS39616D-page 253
)
T
.
AD
11