PIC18F45K80-I/PT Microchip Technology, PIC18F45K80-I/PT Datasheet - Page 256

MCU PIC 32KB FLASH 44TQFP

PIC18F45K80-I/PT

Manufacturer Part Number
PIC18F45K80-I/PT
Description
MCU PIC 32KB FLASH 44TQFP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheet

Specifications of PIC18F45K80-I/PT

Core Size
8-Bit
Program Memory Size
32KB (16K x 16)
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Core Processor
PIC
Speed
64MHz
Connectivity
ECAN, I²C, LIN, SPI, UART/USART
Number Of I /o
35
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.6K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 11x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP
Controller Family/series
PIC18
Ram Memory Size
4KB
Cpu Speed
16MIPS
No. Of Pwm Channels
5
Embedded Interface Type
I2C, SPI, USART
Processor Series
PIC18F45K80
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
I2C, SPI, USART
Maximum Clock Frequency
64 MHz
Number Of Programmable I/os
35
Number Of Timers
5
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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PIC18F66K80 FAMILY
18.8
A unique feature on board the CTMU module is its ability
to generate system clock independent output pulses
based on either an external voltage or an external
capacitor value. When using an external voltage, this is
accomplished using the CTDIN input pin as a trigger for
the pulse delay. When using an external capacitor
value, this is accomplished using the internal compara-
tor voltage reference module and Comparator 2 input
pin.The pulse is output onto the CTPLS pin. To enable
this mode, set the TGEN bit.
See
CTMUDS (PADCFG1<0>) is cleared, the pulse delay is
determined by the output of Comparator 2, and when it
is set, the pulse delay is determined by the input of
CTDIN. C
output pulse width on CTPLS. The pulse width is calcu-
lated by T = (C
current source measurement step (
“Current Source Calibration”
reference voltage (CV
FIGURE 18-5:
DS39977C-page 256
Figure 18-5
Creating a Delay with the CTMU
Module
DELAY
DELAY
is chosen by the user to determine the
for an example circuit. When
/I)*V , where I is known from the
REF
TYPICAL CONNECTIONS AND INTERNAL CONFIGURATION FOR PULSE DELAY
GENERATION
).
C
CTED1
CTMUI
DELAY
) and V is the internal
Section 18.4.1
External Reference
EDG1
Preliminary
CV
External Comparator
Current Source
PIC18F66K80
REF
Comparator
CTMU
C2
An example use of the external capacitor feature is
interfacing with variable capacitive-based sensors,
such as a humidity sensor. As the humidity varies, the
pulse-width output on CTPLS will vary. An example use
of the CTDIN feature is interfacing with a digital sensor.
The CTPLS output pin can be connected to an input
capture pin and the varying pulse width measured to
determine the sensor’s output in the application.
To use this feature:
1.
2.
3.
4.
When CTMUDS is cleared, as soon as C
charges to the value of the voltage reference trip point,
an output pulse is generated on CTPLS. When
CTMUDS is set, as soon as CTDIN is set, an output
pulse is generated on CTPLS.
C1
If CTMUDS is cleared, initialize Comparator 2.
If CTMUDS is cleared, initialize the comparator
voltage reference.
Initialize the CTMU and enable time delay
generation by setting the TGEN bit.
Set EDG1STAT.
CTDIN
CTPLS
CTMUDS
 2011 Microchip Technology Inc.
DELAY

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