PIC16LF1904T-I/PT Microchip Technology, PIC16LF1904T-I/PT Datasheet - Page 126
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PIC16LF1904T-I/PT
Manufacturer Part Number
PIC16LF1904T-I/PT
Description
7KB Flash, 256B RAM, LCD, 14x10b ADC, EUSART, NanoWatt XLP 44 TQFP 10x10x1mm T/R
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheet
1.PIC16LF1904-EMV.pdf
(288 pages)
Specifications of PIC16LF1904T-I/PT
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
LIN, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
7KB (4K x 14)
Program Memory Type
FLASH
Eeprom Size
-
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP
Processor Series
PIC16LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
256 B
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
36
Number Of Timers
1 x 16-bit, 1 x 8-bit
Operating Supply Voltage
1.8 V to 5.5 V
Mounting Style
Through Hole
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16LF1904T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC16LF1904/6/7
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 11.0 “I/O Ports”
15.1.2
There are up to 11 channel selections available:
• AN<13:0> pins
• Temperature Indicator
• FVR (Fixed Voltage Reference) Output
Refer to
(FVR)”
Module”
tions.
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”
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
See
for more details on the Fixed Voltage Reference.
DS41569A-page 126
Note:
REF
DD
Section 13.0 “Fixed Voltage Reference (FVR)”
+ pin
and
ADC Configuration
for more information on these channel selec-
Section 13.0 “Fixed Voltage Reference
PORT CONFIGURATION
Analog voltages on any pin that is defined
as a digital input may cause the input
buffer to conduct excess current.
CHANNEL SELECTION
ADC VOLTAGE REFERENCE
TRIS
Section 14.0 “Temperature Indicator
for more information.
and
for more information.
ANSEL
bits.
Section 15.2
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
ods as shown in
For correct conversion, the appropriate T
tion must be met. Refer to the A/D conversion require-
ments in
more information.
priate 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
Section 22.0 “Electrical Specifications”
Unless using the F
system clock frequency will change the
ADC
adversely affect the ADC result.
CONVERSION CLOCK
Figure
Table 15-1
clock
15-2.
2011 Microchip Technology Inc.
frequency,
gives examples of appro-
RC
, any changes in the
which
AD
specifica-
AD
may
peri-
for
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