PIC18F458-E/P Microchip Technology, PIC18F458-E/P Datasheet - Page 141

• Manufacturer Part Number: PIC18F458-E/P
• Description: IC MCU FLASH 16KX16 W/CAN 40 DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F458-E/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1536 B
• Interface Type: SPI, I2C, USART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 125 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, DV164136, DM163011
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 16-7:
FIGURE 16-8:
© 2006 Microchip Technology Inc.
Note 1: The direction bit in the ECCP1 Control Register (ECCP1CON.EPWM1M1) is written any time during the PWM
External Switch C
External Switch D
Note 1: All signals are shown as active-high.
P1A (Active-High)
P1B (Active-High)
P1C (Active-High)
P1D (Active-High)
2: The P1A and P1C signals switch at intervals of T
Shoot-Through
SIGNAL
cycle.
value earlier when changing direction. The modulated P1B and P1D signals are inactive at this time.
2: t
3: t
Current
Potential
on
off
P1C
P1D
P1A
P1B
is the turn-off delay of power switch and driver.
is the turn-on delay of power switch and driver.
PWM DIRECTION CHANGE
PWM DIRECTION CHANGE AT NEAR 100% DUTY CYCLE
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(PWM)
DC
Forward Period
Period
(1)
OSC
, 4 T
OSC
or 16 T
t1
OSC
(PWM)
(2)
, depending on the Timer2 prescaler
t
on
(2)
t
t = t
off
Reverse Period
(3)
Period
off
– t
PIC18FXX8
on
(2,3)
DS41159E-page 139