PIC18F67K90-I/MR Microchip Technology, PIC18F67K90-I/MR Datasheet - Page 392
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC18F67K90-I/MR
Manufacturer Part Number
PIC18F67K90-I/MR
Description
128kB Flash, 4kB RAM, 1kB EE, NanoWatt XLP, LCD 64 QFN 9x9x0.9mm TUBE
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheet
1.PIC18F66K90-IMR.pdf
(570 pages)
Specifications of PIC18F67K90-I/MR
Core Processor
PIC
Core Size
8-Bit
Speed
64MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 16x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-VFQFN Exposed Pad
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F67K90-I/MR
Manufacturer:
MICROCHIP
Quantity:
3 000
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PIC18F87K90 FAMILY
24.2
A single comparator is shown in
the relationship between the analog input levels and
the digital output. When the analog input at V
than the analog input, V
tor is a digital low level. When the analog input at V
is greater than the analog input, V
comparator is a digital high level. The shaded areas of
the output of the comparator, in
the uncertainty due to input offsets and response time.
FIGURE 24-2:
FIGURE 24-3:
DS39957D-page 392
V
V
Output
IN
IN
-
+
V
V
IN
IN
Comparator Operation
-
+
VA
<10k
R
Legend:
S
+
–
SINGLE COMPARATOR
COMPARATOR ANALOG INPUT MODEL
IN
-, the output of the compara-
A
IN
Figure
Figure
C
V
I
R
R
VA
LEAKAGE
C
5 pF
PIN
T
IC
S
IN
PIN
-, the output of the
24-2, along with
24-2, represent
Output
= Input Capacitance
= Threshold Voltage
= Leakage Current at the pin due to various junctions
= Interconnect Resistance
= Source Impedance
= Analog Voltage
IN
+ is less
IN
V
+
DD
V
V
T
T
= 0.6V
= 0.6V
24.3
Response time is the minimum time, after selecting a
new reference voltage or input source, before the com-
parator output has a valid level. The response time of
the comparator differs from the settling time of the
voltage reference. Therefore, both of these times must
be considered when determining the total response to
a comparator input change. Otherwise, the maximum
delay of the comparators should be used (see
Section 31.0 “Electrical Characteristics”
24.4
A simplified circuit for an analog input is shown in
Figure
digital output, they have reverse biased diodes to V
and V
V
range by more than 0.6V in either direction, one of the
diodes is forward biased and a latch-up condition may
occur.
A
recommended for the analog sources. Any external
component connected to an analog input pin, such as
a capacitor or a Zener diode, should have very little
leakage current.
SS
maximum
and V
SS
24-3. Since the analog pins are connected to a
. The analog input, therefore, must be between
Comparator
Analog Input Connection
Considerations
I
±100 nA
V
LEAKAGE
DD
SS
. If the input voltage deviates from this
source
2009-2011 Microchip Technology Inc.
R
IC
Response Time
impedance
Comparator
Input
of
).
10 k
DD
is
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