PIC16LF1902-E/SP Microchip Technology, PIC16LF1902-E/SP Datasheet - Page 111
![3.5KB Flash, 128B RAM, LCD, 11x10b ADC, NanoWatt XLP 28 SPDIP .300in TUBE](/photos/16/11/161110/pdip28_sml.jpg)
PIC16LF1902-E/SP
Manufacturer Part Number
PIC16LF1902-E/SP
Description
3.5KB Flash, 128B RAM, LCD, 11x10b ADC, NanoWatt XLP 28 SPDIP .300in TUBE
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheet
1.PIC16LF1902-EMV.pdf
(240 pages)
Specifications of PIC16LF1902-E/SP
Processor Series
PIC16LF190x
Core
PIC
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
2 KB
Data Ram Size
128 B
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
25
Number Of Timers
2
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
Package / Case
PDIP-28
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
-
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
25
Eeprom Size
-
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Lead Free Status / Rohs Status
Details
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13.0
The Fixed Voltage Reference, or FVR, is a stable
voltage reference, independent of V
2.048V 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
The FVR can be enabled by setting the FVREN bit of
the FVRCON register.
FIGURE 13-1:
TABLE 13-1:
2011 Microchip Technology Inc.
HFINTOSC
BOR
Peripheral
FIXED VOLTAGE REFERENCE
(FVR)
FOSC<2:0> = 100 and
IRCF<3:0> = 000x
BOREN<1:0> = 11
BOREN<1:0> = 10 and BORFS = 1
BOREN<1:0> = 01 and BORFS = 1
Any peripheral requiring
PERIPHERALS REQUIRING THE FIXED VOLTAGE REFERENCE (FVR)
the Fixed Reference
FVREN
(See
VOLTAGE REFERENCE BLOCK DIAGRAM
Table
ADFVR<1:0>
Conditions
13-1)
DD
, with 1.024V or
2
+
-
Preliminary
1.024V Fixed
Reference
INTOSC is active and device is not in Sleep
BOR always enabled
BOR disabled in Sleep mode, BOR Fast Start enabled.
BOR under software control, BOR Fast Start enabled
x1
x2
13.1
The output of the FVR supplied to the ADC is routed
through
amplifiers. Each amplifier can be configured to amplify
the reference voltage by 1x or 2x, to produce the two
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”
13.2
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 21.0 “Electrical Specifications”
minimum delay requirement.
FVRRDY
Section 15.0 “Analog-to-Digital Converter
Independent Gain Amplifiers
FVR Stabilization Period
two
PIC16LF1902/3
for additional information.
Description
independent
(To ADC Module)
FVR BUFFER1
programmable
DS41455B-page 111
for the
gain
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