PIC16LF1936-I/MV Microchip Technology, PIC16LF1936-I/MV Datasheet - Page 155
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PIC16LF1936-I/MV
Manufacturer Part Number
PIC16LF1936-I/MV
Description
IC MCU 8BIT 14KB FLASH 28UQFN
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheet
1.PIC16F1937-EMV.pdf
(472 pages)
Specifications of PIC16LF1936-I/MV
Core Processor
PIC
Core Size
8-Bit
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
14KB (8K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-UFQFN Exposed Pad
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16LF1936-I/MV
Manufacturer:
ATMEL
Quantity:
3 200
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14.0
The Fixed Voltage Reference, or FVR, is a stable
voltage reference, independent of V
2.048V or 4.096V selectable output levels. The output
of the FVR can be configured to supply a reference
voltage to the following:
• ADC input channel
• ADC positive reference
• Comparator positive input
• Digital-to-Analog Converter (DAC)
• Capacitive Sensing (CPS) module
• LCD bias generator
The FVR can be enabled by setting the FVREN bit of
the FVRCON register.
14.1
The output of the FVR supplied to the ADC,
Comparators, DAC and CPS is routed through two
independent programmable gain amplifiers. Each
FIGURE 14-1:
2008-2011 Microchip Technology Inc.
FIXED VOLTAGE REFERENCE
(FVR)
Independent Gain Amplifiers
VOLTAGE REFERENCE BLOCK DIAGRAM
CDAFVR<1:0>
ADFVR<1:0>
FVRRDY
FVREN
DD
2
2
, with 1.024V,
+
_
X
X
X
X
X
X
1.024V Fixed
Reference
1
2
4
1
2
4
amplifier can be configured to amplify the reference
voltage by 1x, 2x or 4x, to produce the three possible
voltage levels.
The ADFVR<1:0> bits of the FVRCON register are
used to enable and configure the gain amplifier settings
for the reference supplied to the ADC module. Refer-
ence
(ADC) Module”
The CDAFVR<1:0> bits of the FVRCON register are used
to enable and configure the gain amplifier settings for the
reference supplied to the DAC, CPS and comparator
module. Reference
Converter (DAC)
Module”
Module”
14.2
When the Fixed Voltage Reference module is enabled, it
requires time for the reference and amplifier circuits to
stabilize. Once the circuits stabilize and are ready for use,
the FVRRDY bit of the FVRCON register will be set. See
in the applicable Electrical Specifications Chapter for
the minimum delay requirement.
PIC16(L)F1934/6/7
Section 15.0 “Analog-to-Digital Converter
FVR Stabilization Period
(To LCD Bias Generator)
for additional information.
and
(To Comparators, DAC)
Section 26.0 “Capacitive Sensing (CPS)
(To ADC Module)
FVR VREF
FVR BUFFER1
FVR BUFFER2
for additional information.
Module”,
Section 17.0 “Digital-to-Analog
Section 18.0 “Comparator
DS41364E-page 155
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