PIC18F2221-I/ML Microchip Technology, PIC18F2221-I/ML Datasheet - Page 157

• Manufacturer Part Number: PIC18F2221-I/ML
• Description: IC PIC MCU FLASH 2KX16 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2221-I/ML

• Core Size: 8-Bit
• Program Memory Size: 4KB (2K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Controller Family/series: PIC18
• No. Of I/o's: 25
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 512Byte
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Package: 28QFN EP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 25
• Interface Type: I2C/SPI/USART
• On-chip Adc: 10-chx10-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28QFN4 - SOCKET TRANS ICE 28QFN W/CABLEAC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

FIGURE 16-8:
FIGURE 16-9:
© 2007 Microchip Technology Inc.
Note 1: The direction bit in the CCP1 Control register (CCP1CON<7>) is written any time during the PWM cycle.
P1A (Active-High)
P1B (Active-High)
P1C (Active-High)
P1D (Active-High)
Note 1: All signals are shown as active-high.
External Switch C
External Switch D
2: When changing directions, the P1A and P1C signals switch before the end of the current PWM cycle at intervals
SIGNAL
of 4 T
are inactive at this time.
Shoot-Through
2: t
3: t
OSC
ON
OFF
Current
Potential
is the turn-on delay of power switch QC and its driver.
P1C
P1D
P1A
P1B
PWM DIRECTION CHANGE
, 16 T
PWM DIRECTION CHANGE AT NEAR 100% DUTY CYCLE
is the turn-off delay of power switch QD and its driver.
(1)
(1)
(1)
(1)
(1)
(1)
(1)
OSC
or 64 T
DC
OSC
, depending on the Timer2 prescaler value. The modulated P1B and P1D signals
Forward Period
Period
DC
Preliminary
(1)
PIC18F4321 FAMILY
t1
DC
(Note 2)
t
ON
Reverse Period
t
t = t
(2)
OFF
(3)
OFF
Period
DC
– t
ON
(2,3)
DS39689E-page 155