PIC18F65K90-I/PTRSL Microchip Technology, PIC18F65K90-I/PTRSL Datasheet - Page 262
![MCU PIC 32K FLASH MEM XLP 64TQFP](/photos/6/81/68123/c04-066_pf_sml.jpg)
PIC18F65K90-I/PTRSL
Manufacturer Part Number
PIC18F65K90-I/PTRSL
Description
MCU PIC 32K FLASH MEM XLP 64TQFP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Specifications of PIC18F65K90-I/PTRSL
Core Size
8-Bit
Program Memory Size
32KB (16K x 16)
Core Processor
PIC
Speed
64MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
53
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K 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-TFQFP
Controller Family/series
PIC18
Eeprom Memory Size
1024Byte
Ram Memory Size
2048Byte
Cpu Speed
16MIPS
No. Of Timers
8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F65K90-I/PTRSL
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC18F87K90 FAMILY
FIGURE 19-11:
19.4.3
When any PWM mode is used, the application
hardware must use the proper external pull-up and/or
pull-down resistors on the PWM output pins.
The CCPxM<1:0> bits of the CCPxCON register allow
the user to choose whether the PWM output signals are
active-high or active-low for each pair of PWM output
pins (PxA/PxC and PxB/PxD). The PWM output
polarities must be selected before the PWM pin output
drivers are enabled. Changing the polarity configura-
tion while the PWM pin output drivers are enabled is
not recommended since it may result in damage to the
application circuits.
The PxA, PxB, PxC and PxD output latches may not be
in the proper states when the PWM module is
initialized. Enabling the PWM pin output drivers at the
same time as the Enhanced PWM modes may cause
damage to the application circuit. The Enhanced PWM
modes must be enabled in the proper Output mode and
DS39957B-page 262
Note:
Note 1: All signals are shown as active-high.
Shoot-Through Current
External Switch C
External Switch D
2: T
3: T
START-UP CONSIDERATIONS
When the microcontroller is released from
Reset, all of the I/O pins are in the
High-Impedance
circuits must keep the power switch
devices in the OFF state until the micro-
controller drives the I/O pins with the
proper signal levels or activates the PWM
output(s).
ON
OFF
is the turn-on delay of power switch, QC, and its driver.
Potential
is the turn-off delay of power switch, QD, and its driver.
EXAMPLE OF PWM DIRECTION CHANGE AT NEAR 100% DUTY CYCLE
PxC
PxD
PxA
PxB
state.
The
Forward Period
external
PW
Preliminary
complete a full PWM cycle before enabling the PWM
pin output drivers. The completion of a full PWM cycle
is indicated by the TMR2IF or TMR4IF bit of the PIR1
or PIR5 register being set as the second PWM period
begins.
19.4.4
The PWM mode supports an Auto-Shutdown mode that
will disable the PWM outputs when an external
shutdown event occurs. Auto-Shutdown mode places
the PWM output pins into a predetermined state. This
mode is used to help prevent the PWM from damaging
the application.
The auto-shutdown sources are selected using the
ECCPxAS<2:0> bits (ECCPxAS<6:4>). A shutdown
event may be generated by:
• A logic ‘0’ on the pin that is assigned the FLT0
• Comparator C1
• Comparator C2
• Setting the ECCPxASE bit in firmware
A shutdown condition is indicated by the ECCPxASE
(Auto-Shutdown Event Status) bit (ECCPxAS<7>). If
the bit is a ‘0’, the PWM pins are operating normally. If
the bit is a ‘1’, the PWM outputs are in the shutdown
state.
input function
t1
ENHANCED PWM
AUTO-SHUTDOWN MODE
T
ON
Reverse Period
T
T = T
OFF
2010 Microchip Technology Inc.
OFF
PW
– T
ON
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