PIC16F707-E/P Microchip Technology, PIC16F707-E/P Datasheet - Page 89

• Manufacturer Part Number: PIC16F707-E/P
• Description: 14KB Flash Program, MTouch, 32ch CSM, 1.8V-5.5V, 16MHz Internal Oscillator, 8b A
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F707-E/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Ram Size: 363 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 14x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Processor Series: PIC16F
• Core: PIC
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

10.0
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
• Digital-to-Analog Converter (DAC)
• Capacitive Sensing Modules (CSM)
The FVR can be enabled by setting the FVREN bit of
the FVRCON register.
FIGURE 10-1:
 2010 Microchip Technology Inc.
FIXED VOLTAGE REFERENCE
VOLTAGE REFERENCE BLOCK DIAGRAM
CDAFVR<1:0>
ADFVR<1:0>
FVRRDY
FVREN
DD
2
2
with 1.024V,
+
_
Preliminary
X
X
X
X
X
X
1.024V Fixed
Reference
1
2
4
1
2
4
PIC16F707/PIC16LF707
10.1
The output of the FVR supplied to the ADC and
CSM/DAC modules is routed through the two
independent programmable gain amplifiers. Each
amplifier can be configured to amplify the reference
voltage by 1x, 2x or 4x.
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” for additional information on selecting
the appropriate input channel.
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 capacitive sensing and
digital-to-analog
Section 16.0 “Capacitive Sensing Module” and
Section 11.0 “Digital-to-Analog Converter (DAC)
Module” for additional information.
10.2
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 Section 25.0 “Electrical Specifications” for the
minimum delay requirement.
Section 9.0
Independent Gain Amplifiers
FVR Stabilization Period
(To Cap Sense, DAC)
(To ADC Module)
FVR BUFFER1
FVR BUFFER2
converter
“Analog-to-Digital
modules.
DS41418A-page 89
Converter
Reference