PIC18F44K20-E/ML Microchip Technology, PIC18F44K20-E/ML Datasheet - Page 290
PIC18F44K20-E/ML
Manufacturer Part Number
PIC18F44K20-E/ML
Description
16KB, Flash, 768bytes-RAM, 36I/O, 8-bit Family,nanowatt XLP 44 QFN 8x8x0.9mm TUB
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18F25K20T-ISS.pdf
(42 pages)
2.PIC18F25K20T-ISS.pdf
(12 pages)
3.PIC18F25K20T-ISS.pdf
(14 pages)
4.PIC18F25K20T-ISS.pdf
(456 pages)
Specifications of PIC18F44K20-E/ML
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
35
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164112 - VOLTAGE LIMITER MPLAB ICD2 VPPDM164124 - KIT STARTER FOR PIC18F4XK20AC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC18F25K20T-ISS PDF datasheet
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- Download datasheet (4Mb)
PIC18F2XK20/4XK20
21.2
The FVR reference is a stable fixed voltage reference,
independent of V
1.2V. This reference can be enabled by setting the
FVREN bit of the CVRCON2 register to ‘1’. The FVR
defaults to on when any one or more of the HFINTOSC,
HLVD, or BOR functions are enabled. The FVR voltage
reference can be routed to the comparators or an ADC
input channel.
FIGURE 21-1:
DS41303G-page 290
FVR Reference Module
V
V
DD
V
REF
REF
DD
CVREN
, with a nominal output voltage of
+
-
VOLTAGE REFERENCE BLOCK DIAGRAM
From HVLD and
BOR circuits
CVRSS = 0
CVRSS = 1
CVRR
CVRSS = 1
CVRSS = 0
FVREN
16 Steps
8R
R
R
R
R
R
R
R
EN
1.2 Volt Fixed
21.2.1
When the Fixed Voltage Reference module is enabled, it
will require some time for the reference and its amplifier
circuits to stabilize. The user program must include a
small delay routine to allow the module to settle. The
FVRST stable bit of the CVRCON2 register also indicates
that the FVR reference has been operating long enough
to
Characteristics” for the minimum delay requirement.
Reference
8R
be
stable.
CVR<3:0>
FVR STABILIZATION PERIOD
FVR
FVRST
See
2010 Microchip Technology Inc.
Section 26.0
CV
REF
“Electrical
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