PIC16F1946-E/PT Microchip Technology, PIC16F1946-E/PT Datasheet - Page 156

no-image

PIC16F1946-E/PT

Manufacturer Part Number
PIC16F1946-E/PT
Description
MCU 8BIT 8K FLASH 64TQFP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr

Specifications of PIC16F1946-E/PT

Core Size
8-Bit
Program Memory Size
14KB (8K x 14)
Core Processor
PIC
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 17x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
64-TFQFP
Controller Family/series
PIC16F
Eeprom Memory Size
256Byte
Ram Memory Size
512Byte
Cpu Speed
32MHz
No. Of Timers
5
Interface
EUSART, I2C, SPI
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC16F1946-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
PIC16F/LF1946/47
15.1
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
15.1.1
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” for more information.
15.1.2
There are 16 channel selections available:
• AN<13:0> pins
• DAC Output
• FVR (Fixed Voltage Reference) Output
Refer to Section 16.0 “Digital-to-Analog Converter
(DAC) Module” and Section 14.0 “Fixed Voltage
Reference (FVR)” for more information on these chan-
nel 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 Section 15.2
“ADC Operation” for more information.
15.1.3
The ADPREF bits of the ADCON1 register provides
control of the positive voltage reference. The positive
voltage reference can be:
• V
• V
• FVR
The ADNREF bit of the ADCON1 register provides
control of the negative voltage reference. The negative
voltage reference can be:
• V
• V
See Section 14.0 “Fixed Voltage Reference (FVR)”
for more details on the fixed voltage reference.
DS41414A-page 154
Note:
REF
DD
REF
SS
+ pin
- pin
ADC Configuration
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
OLTAGE REFERENCE
and
ANSEL
bits.
Refer
Preliminary
to
15.1.4
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
periods as shown in Figure 15-2.
For correct conversion, the appropriate T
tion must be met. Refer to the A/D conversion require-
ments in Section 29.0 “Electrical Specifications” for
more information. Table 15-1 gives examples of
appropriate ADC clock selections.
AD
Note:
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
Unless using the F
system clock frequency will change the
ADC
adversely affect the ADC result.
CONVERSION CLOCK
clock
 2010 Microchip Technology Inc.
frequency,
RC
, any changes in the
which
AD
specifica-
may
AD

Related parts for PIC16F1946-E/PT