PIC18F1230-I/P Microchip Technology, PIC18F1230-I/P Datasheet - Page 135
![IC PIC MCU FLASH 2KX16 18DIP](/photos/6/76/67657/18-dip_300mil__sml.jpg)
PIC18F1230-I/P
Manufacturer Part Number
PIC18F1230-I/P
Description
IC PIC MCU FLASH 2KX16 18DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.AC162078.pdf
(318 pages)
3.PIC18F1230-ISO.pdf
(6 pages)
4.PIC18F1230-ISO.pdf
(12 pages)
5.PIC18F1230-ISO.pdf
(4 pages)
6.PIC18F1230-IP.pdf
(312 pages)
Specifications of PIC18F1230-I/P
Program Memory Type
FLASH
Program Memory Size
4KB (2K x 16)
Package / Case
18-DIP (0.300", 7.62mm)
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
16
Eeprom Size
128 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
16
Number Of Timers
2
Operating Supply Voltage
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, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
4-ch x 10-bit
Package
18PDIP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Height
3.3 mm
Length
22.86 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.2 V
Width
6.35 mm
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:
PIC18F1230-I/P
Manufacturer:
MICROCHIP
Quantity:
5
Part Number:
PIC18F1230-I/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- AC162078 PDF datasheet #2
- PIC18F1230-ISO PDF datasheet #3
- PIC18F1230-ISO PDF datasheet #4
- PIC18F1230-ISO PDF datasheet #5
- PIC18F1230-IP PDF datasheet #6
- Current page: 135 of 318
- Download datasheet (3Mb)
14.7
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
provided 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 14-17:
FIGURE 14-18:
2009 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
Dead-Time Register
6-Bit Down Counter
Zero Compare
OFF
t d
14.7.1
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 14-17, 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 14-18.
t d
PIC18F1230/1330
DEAD-TIME INSERTION
Odd PWM Signal to
Output Control Block
Even PWM Signal to
Output Control Block
DS39758D-page 135
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