PIC16F1828-I/SS Microchip Technology, PIC16F1828-I/SS Datasheet - Page 150

• Manufacturer Part Number: PIC16F1828-I/SS
• Description: IC PIC MCU 8BIT 14KB FLSH 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1828-I/SS

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SSOP (0.200", 5.30mm Width)
• Controller Family/series: PIC16F
• No. Of I/o's: 18
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 256Byte
• Cpu Speed: 32MHz
• No. Of Timers: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16(L)F1824/1828
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<7:0> pins (PIC16F/LF1824 only)
• AN<11:0> pins (PIC16F/LF1828 only)
• 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 2.028V
• 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.
DS41419B-page 150
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 V
TRIS
and
for more information.
OLTAGE REFERENCE
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
specification must be met. Refer to the A/D conversion
requirements
Specifications”
examples of appropriate ADC clock selections.
AD
Note:
OSC
OSC
OSC
OSC
OSC
OSC
RC
. One full 10-bit conversion requires 11.5 T
correct
(dedicated internal oscillator)
/2
/4
/8
/16
/32
/64
Unless using the F
system clock frequency will change the
ADC
adversely affect the ADC result.
CONVERSION CLOCK
conversion,
Figure
for more information.
in
clock
16-3.
 2010 Microchip Technology Inc.
Section 30.0
frequency,
the
RC
, any changes in the
appropriate
Table 16-1
which
“Electrical
AD
gives
may
peri-
T
AD