PIC12F1840-I/P Microchip Technology, PIC12F1840-I/P Datasheet - Page 123
![7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core 8 PDI](/photos/16/3/160349/pdip8_sml.jpg)
PIC12F1840-I/P
Manufacturer Part Number
PIC12F1840-I/P
Description
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core 8 PDI
Manufacturer
Microchip Technology
Datasheet
1.PIC12F1840-IP.pdf
(382 pages)
Specifications of PIC12F1840-I/P
Processor Series
PIC12F
Core
PIC
Program Memory Type
Flash
Program Memory Size
7 KB
Data Ram Size
256 B
Interface Type
MI2C, SPI, EUSART
Number Of Timers
3
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Package / Case
PDIP-8
Development Tools By Supplier
MPLAB IDE Software
Minimum Operating Temperature
- 40 C
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC12F1840-I/P
Manufacturer:
MICROCHIP
Quantity:
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
The FVR can be enabled by setting the FVREN bit of
the FVRCON register.
FIGURE 14-1:
2011 Microchip Technology Inc.
FIXED VOLTAGE REFERENCE
(FVR)
VOLTAGE REFERENCE BLOCK DIAGRAM
CDAFVR<1:0>
ADFVR<1:0>
FVRRDY
FVREN
DD
, with 1.024V,
2
2
+
_
Preliminary
X
X
X
X
X
X
1.024V Fixed
Reference
1
2
4
1
2
4
14.1
The output of the FVR supplied to the ADC,
Comparators, DAC and CPS module is routed through
two independent programmable gain amplifiers. Each
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 Comparators, DAC,
and CPS module. Reference
Analog Converter (DAC)
“Comparator Module”
Analog Converter (DAC) Module”
information.
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
Section 30.0 “Electrical Specifications”
minimum delay requirement.
Section 16.0 “Analog-to-Digital Converter
Independent Gain Amplifiers
FVR Stabilization Period
(To Comparators, DAC, CPS)
(To ADC Module)
PIC12(L)F1840
FVR BUFFER1
FVR BUFFER2
for additional information.
and
Section 17.0 “Digital-to-
Section 17.0 “Digital-to-
Module”,
DS41441B-page 123
for additional
Section 19.0
for the
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