PIC18F6410-I/PT Microchip Technology, PIC18F6410-I/PT Datasheet - Page 261

• Manufacturer Part Number: PIC18F6410-I/PT
• Description: IC PIC MCU FLASH 8KX16 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F6410-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 16KB (8K x 16)
• Package / Case: 64-TFQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 54
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 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: 768 B
• Interface Type: SPI/I2C/EUSART/AUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 4
• Operating Supply Voltage: 4.2 V to 5.5 V
• Maximum Operating Temperature: + 85 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, PG164120, ICE2000, ICE4000, DV164136, DM183032
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12-ch x 10-bit
• Package: 64TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT64PT5 - SOCKET TRAN ICE 64MQFP/TQFPAC164319 - MODULE SKT MPLAB PM3 64TQFPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

20.2
The ADCON2 register allows the user to select an
acquisition time that occurs each time the GO/DONE
bit is set. It also gives users the option to use an auto-
matically determined acquisition time. Acquisition time
may be set with the ACQT<2:0> bits (ADCON2<5:3>),
which provides a range of 2 to 20 T
When the GO/DONE bit is set, the A/D module contin-
ues to sample the input for the selected acquisition
time, then automatically begins a conversion.
Since the acquisition time is programmed, there may be
no need to wait for an acquisition time between selecting
a channel and setting the GO/DONE bit. Manual acqui-
sition is selected when ACQT<2:0> = 000. When the
GO/DONE bit is set, sampling is stopped and a conver-
sion begins. The user is responsible for ensuring the
required acquisition time has passed between selecting
the desired input channel and setting the GO/DONE bit.
This option is also the default Reset state of the
ACQT<2:0> bits and is compatible with devices that do
not offer programmable acquisition times.
In either case, when the conversion is completed, the
GO/DONE bit is cleared, the ADIF flag is set and the
A/D begins sampling the currently selected channel
again. If an acquisition time is programmed, there is
nothing to indicate if the acquisition time has ended, or
if the conversion has begun.
TABLE 20-1:
 2010 Microchip Technology Inc.
Note 1:
2:
3:
4:
Selecting and Configuring
Automatic Acquisition Time
Operation
The RC source has a typical T
The RC source has a typical T
For device frequencies above 1 MHz, the device must be in Sleep for the entire conversion or the A/D
accuracy may be out of specification.
Low-power (PIC18LFXXXX) devices only.
16 T
32 T
64 T
2 T
4 T
8 T
RC
OSC
OSC
OSC
OSC
OSC
OSC
(3)
AD Clock Source (T
T
AD
vs. DEVICE OPERATING FREQUENCIES
AD
.
AD
ADCS<2:0>
)
AD
AD
000
100
001
101
010
110
x11
time of 4 s.
time of 6 s.
PIC18F6310/6410/8310/8410
20.3
The A/D conversion time per bit is defined as T
A/D conversion requires 11 T
The
software-selectable. There are seven possible options
for T
• 2 T
• 4 T
• 8 T
• 16 T
• 32 T
• 64 T
• Internal RC Oscillator
For correct A/D conversions, the A/D conversion clock
(T
minimum T
for more information).
Table 20-1
the device operating frequencies and the A/D clock
source selected.
PIC18F6X10/8X10
AD
AD
) must be as short as possible, but greater than the
1.00 MHz
1.25 MHz
2.50 MHz
5.00 MHz
10.0 MHz
20.0 MHz
40.0 MHz
OSC
OSC
OSC
source
OSC
OSC
OSC
:
Selecting the A/D Conversion
Clock
Maximum Device Frequency
AD
shows the resultant T
(approximately 2 s, see Parameter 130
(1)
of
the
A/D
PIC18LF6X10/8X10
AD
conversion
per 10-bit conversion.
AD
1.00 MHz
10.65 MHz
21.33 MHz
1.33 MHz
2.66 MHz
5.33 MHz
DS39635C-page 261
666 kHz
times derived from
(2)
clock
AD
(4)
. The
is