PIC18F4580-I/P Microchip Technology Inc., PIC18F4580-I/P Datasheet - Page 141

• Manufacturer Part Number: PIC18F4580-I/P
• Description: 40 PIN, 32 KB FLASH, 1536 RAM, 36 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4580-I/P

• A/d Inputs: 11-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: CAN/I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 32K Bytes
• Ram Size: 1.5K Bytes
• Speed: 40 MHz
• Timers: 1-8 bit, 3-16 bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

FIGURE 16-7:
FIGURE 16-8:
 2004 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)
DS41159D-page 139