PIC18LF4431-I/P Microchip Technology, PIC18LF4431-I/P Datasheet - Page 201
![IC PIC MCU FLASH 8KX16 40DIP](/photos/6/61/66192/150-40-dip_sml.jpg)
PIC18LF4431-I/P
Manufacturer Part Number
PIC18LF4431-I/P
Description
IC PIC MCU FLASH 8KX16 40DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC18F2331-ISO.pdf
(392 pages)
4.PIC18F2331-ISO.pdf
(8 pages)
5.PIC18F2331-ISO.pdf
(6 pages)
6.PIC18F2331-ISO.pdf
(16 pages)
7.PIC18LF2331-ISO.pdf
(4 pages)
8.PIC18LF2331-ISO.pdf
(40 pages)
9.PIC18F4331-EP.pdf
(400 pages)
Specifications of PIC18LF4431-I/P
Core Size
8-Bit
Program Memory Size
16KB (8K x 16)
Oscillator Type
Internal
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
Number Of I /o
36
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 9x10b
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Controller Family/series
PIC18
No. Of I/o's
36
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
40MHz
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
EUSART, I2C, SPI, SSP
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
36
Number Of Timers
1 x 8
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
9 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF4431-I/P
Manufacturer:
Microchip Technology
Quantity:
135
Company:
Part Number:
PIC18LF4431-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F818-ISO PDF datasheet #2
- PIC18F2331-ISO PDF datasheet #3
- PIC18F2331-ISO PDF datasheet #4
- PIC18F2331-ISO PDF datasheet #5
- PIC18F2331-ISO PDF datasheet #6
- PIC18LF2331-ISO PDF datasheet #7
- PIC18LF2331-ISO PDF datasheet #8
- PIC18F4331-EP PDF datasheet #9
- Current page: 201 of 400
- Download datasheet (7Mb)
17.7
In power inverter applications, where the PWMs are
used in Complementary mode to control the upper and
lower switches of a half-bridge, a dead-time insertion is
highly recommended. The dead-time insertion keeps
both outputs in inactive state for a brief time. This
avoids any overlap in the switching during the state
change of the power devices due to T
characteristics.
Because the power output devices cannot switch
instantaneously, some amount of time must be pro-
vided between the turn-off event of one PWM output in
a complementary pair and the turn-on event of the
other transistor. The PWM module allows dead time to
be programmed. The following sections explain the
dead-time block in detail.
FIGURE 17-17:
FIGURE 17-18:
© 2007 Microchip Technology Inc.
Compare Input
Duty Cycle
Dead-Time Generators
Dead Time
Dead Time
Select Bits
Prescale
F
OSC
DEAD-TIME CONTROL UNIT BLOCK DIAGRAM FOR ONE PWM OUTPUT PAIR
DEAD-TIME INSERTION FOR COMPLEMENTARY PWM
and Prescaler
Clock Control
Compare
Output
PWM1
PWM0
PDC1
ON
and T
PIC18F2331/2431/4331/4431
Dead-Time Register
6-Bit Down Counter
Zero Compare
Preliminary
OFF
t d
17.7.1
Each complementary output pair for the PWM module
has a 6-bit down counter used to produce the
dead-time insertion. As shown in Figure 17-17, each
dead-time unit has a rising and falling edge detector
connected to the duty cycle comparison output. The
dead time is loaded into the timer on the detected PWM
edge event. Depending on whether the edge is rising or
falling, one of the transitions on the complementary
outputs is delayed until the timer counts down to zero.
A timing diagram, indicating the dead-time insertion for
one pair of PWM outputs, is shown in Figure 17-18.
t d
DEAD-TIME INSERTION
Odd PWM Signal to
Output Control Block
Even PWM Signal to
Output Control Block
DS39616C-page 199
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