PIC16LF1847-E/MV Microchip Technology, PIC16LF1847-E/MV Datasheet - Page 140
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PIC16LF1847-E/MV
Manufacturer Part Number
PIC16LF1847-E/MV
Description
14 KB Flash, 1K Bytes RAM, 32 MHz Int. Osc, 16 I/0, Enhanced Mid Range Core, Nan
Manufacturer
Microchip Technology
Series
PIC® XLP™ mTouch™ 16Fr
Datasheet
1.PIC16F1847-EP.pdf
(408 pages)
Specifications of PIC16LF1847-E/MV
Processor Series
PIC16LF
Core
RISC
Data Bus Width
10 bit
Program Memory Type
Flash
Program Memory Size
8 KB
Data Ram Size
1024 B
Interface Type
SPI, I2C
Maximum Clock Frequency
32 KHZ
Number Of Programmable I/os
15
Number Of Timers
3
Operating Supply Voltage
3.6 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Package / Case
UQFN-28
Operating Temperature Range
- 40 C to + 125 C
Processor To Be Evaluated
PIC16F1847
Supply Current (max)
34 uA
Core Processor
PIC
Core Size
8-Bit
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
15
Eeprom Size
256 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Lead Free Status / Rohs Status
Details
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PIC16(L)F1847
16.1
When configuring and using the ADC the following
functions must be considered:
• Port configuration
• Channel selection
• ADC voltage reference selection
• ADC conversion clock source
• Interrupt control
• Result formatting
16.1.1
The ADC can be used to convert both analog and
digital signals. When converting analog signals, the I/O
pin should be configured for analog by setting the
associated
Section 12.0 “I/O Ports”
16.1.2
There are up to 14 channel selections available:
• AN<11:0> pins
• DAC Output
• FVR (Fixed Voltage Reference) Output
Refer to
(DAC) Module”
Reference (FVR)”
channel selections.
The CHS bits of the ADCON0 register determine which
channel is connected to the sample and hold circuit.
When changing channels, a delay is required before
starting the next conversion. Refer to
“ADC Operation”
16.1.3
The ADPREF bits of the ADCON1 register provides
control of the positive voltage reference. The positive
voltage reference can be:
• V
• V
• FVR 2.048V
• FVR 4.096V (Not available on LF devices)
The ADNREF bits of the ADCON1 register provides
control of the negative voltage reference. The negative
voltage reference can be:
• V
• V
See
for more details on the fixed voltage reference.
DS41453B-page 140
Note:
REF
DD
REF
SS
Section 14.0 “Fixed Voltage Reference (FVR)”
+ pin
- pin
ADC Configuration
Section 17.0 “Digital-to-Analog Converter
PORT CONFIGURATION
Analog voltages on any pin that is defined
as a digital input may cause the input buf-
fer to conduct excess current.
CHANNEL SELECTION
ADC VOLTAGE REFERENCE
TRIS
and
for more information.
and
for more information on these
Section 14.0 “Fixed Voltage
for more information.
ANSEL
bits.
Section 16.2
Refer
Preliminary
to
16.1.4
The source of the conversion clock is software select-
able via the ADCS bits of the ADCON1 register. There
are seven possible clock options:
• F
• F
• F
• F
• F
• F
• F
The time to complete one bit conversion is defined as
T
ods as shown in
For correct conversion, the appropriate T
must be met. Refer to the A/D conversion requirements
in
information.
ADC clock selections.
AD
Note:
Section 30.0 “Electrical Specifications”
OSC
OSC
OSC
OSC
OSC
OSC
RC
. One full 10-bit conversion requires 11.5 T
(dedicated internal oscillator)
/2
/4
/8
/16
/32
/64
CONVERSION CLOCK
Unless using the F
system clock frequency will change the
ADC
adversely affect the ADC result.
Table 16-1
Figure
clock
16-2.
gives examples of appropriate
2011 Microchip Technology Inc.
frequency,
RC
, any changes in the
AD
which
specification
for more
AD
may
peri-
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