PIC18F6680-E/PT Microchip Technology, PIC18F6680-E/PT Datasheet - Page 185

• Manufacturer Part Number: PIC18F6680-E/PT
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,64PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F6680-E/PT

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 52
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.25K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 16-9:
FIGURE 16-10:
 2004 Microchip Technology Inc.
Note 1:
P1A (Active-High)
P1B (Active-High)
P1C (Active-High)
P1D (Active-High)
External Switch C
External Switch D
Note 1: All signals are shown as active-high.
2:
Shoot-Through
SIGNAL
The direction bit in the CCP1 Control register (CCP1CON<7>) is written any time during the PWM cycle.
When changing directions, the P1A and P1C signals switch before the end of the current PWM cycle at inter-
vals of 4 T
signals are inactive at this time.
2: t
3: t
Potential
Current
ON
OFF
PWM DIRECTION CHANGE
PWM DIRECTION CHANGE AT NEAR 100% DUTY CYCLE
P1A
P1B
P1C
P1D
is the turn on delay of power switch QC and its driver.
OSC
is the turn off delay of power switch QD and its driver.
, 16 T
OSC
or 64 T
DC
Forward Period
OSC
PIC18F6585/8585/6680/8680
, depending on the Timer2 prescaler value. The modulated P1B and P1D
Period
DC
(1)
t1
DC
(Note 2)
t
ON
Reverse Period
t
t = t
OFF
OFF
Period
DC
– t
ON
DS30491C-page 183