PIC18F45K80-I/PT Microchip Technology, PIC18F45K80-I/PT Datasheet - Page 373

• Manufacturer Part Number: PIC18F45K80-I/PT
• Description: MCU PIC 32KB FLASH 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F45K80-I/PT

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K x 16)
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Core Processor: PIC
• Speed: 64MHz
• Connectivity: ECAN, I²C, LIN, SPI, UART/USART
• Number Of I /o: 35
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.6K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 11x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP
• Controller Family/series: PIC18
• Ram Memory Size: 4KB
• Cpu Speed: 16MIPS
• No. Of Pwm Channels: 5
• Embedded Interface Type: I2C, SPI, USART
• Processor Series: PIC18F45K80
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 64 MHz
• Number Of Programmable I/os: 35
• Number Of Timers: 5
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

23.4
The ADCON2 register allows the user to select an
acquisition time that occurs each time the GO/DONE
bit is set.
When the GO/DONE bit is set, sampling is stopped and
a conversion begins. The user is responsible for ensur-
ing the required acquisition time has passed between
selecting the desired input channel and setting the
GO/DONE bit.
This
(ADCON2<5:3>) remain in their Reset state (‘ 000 ’),
which is compatible with devices that do not offer
programmable acquisition times.
If desired, the ACQTx bits can be set to select a pro-
grammable acquisition time for the A/D module. When
the GO/DONE bit is set, the A/D module continues to
sample the input for the selected acquisition time, then
automatically begins a conversion. Since the acquisi-
tion time is programmed, there may be no need to wait
for an acquisition time between selecting a channel and
setting the GO/DONE bit.
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.
23.5
The A/D conversion time per bit is defined as T
A/D conversion requires 14 T
The source of the A/D conversion clock is software
selectable.
The possible options for T
• 2 T
• 4 T
• 8 T
• 16 T
• 32 T
• 64 T
• Using the internal RC Oscillator
For correct A/D conversions, the A/D conversion clock
(T
minimum
Parameter 130 in
Table 23-1
the device operating frequencies and the A/D clock
source selected.
 2011 Microchip Technology Inc.
AD
) must be as short as possible but greater than the
OSC
OSC
OSC
OSC
OSC
OSC
occurs
Selecting and Configuring
Automatic Acquisition Time
Selecting the A/D Conversion
Clock
shows the resultant T
T
AD
.
Table
when
(For
31-26.)
AD
more
the
are:
AD
per 12-bit conversion.
AD
ACQT<2:0>
times derived from
information,
AD
. The
see
Preliminary
bits
PIC18F66K80 FAMILY
TABLE 23-1:
23.6
The ANCON0, ANCON1, TRISA, TRISB, TRISC and
TRISC registers control the operation of the A/D port
pins. The port pins needed as analog inputs must have
their corresponding TRISx bits set (input). If the TRISx
bit is cleared (output), the digital output level (V
V
The A/D operation is independent of the state of the
CHS<3:0> bits and the TRISx bits.
Note 1:
OL
Note 1: When reading the PORT register, all pins
Operation
) will be converted.
16 T
32 T
64 T
2 T
4 T
8 T
AD Clock Source (T
RC
2:
OSC
OSC
OSC
Configuring Analog Port Pins
OSC
OSC
OSC
2: Analog levels on any pin defined as a
(2)
The RC source has a typical T
4  s.
For device frequencies above 1 MHz, the
device must be in Sleep mode for the
entire conversion or the A/D accuracy may
be out of specification.
configured as analog input channels will
read as cleared (a low level). Pins config-
ured as digital inputs will convert an
analog input. Analog levels on a digitally
configured
converted.
digital input may cause the digital input
buffer to consume current out of the
device’s specification limits.
T
FREQUENCIES
AD
ADCS<2:0>
vs. DEVICE OPERATING
000
100
001
101
010
110
x11
input
AD
)
will
DS39977C-page 373
be
Frequency
10.00 MHz
20.00 MHz
40.00 MHz
64.00 MHz
Maximum
1.00 MHz
2.50 MHz
5.00 MHz
Device
AD
accurately
time of
OH
(1)
or