PIC18F6621T-I/PT Microchip Technology, PIC18F6621T-I/PT Datasheet - Page 157
![IC PIC MCU FLASH 32KX16 64TQFP](/photos/6/81/68123/c04-066_pf_sml.jpg)
PIC18F6621T-I/PT
Manufacturer Part Number
PIC18F6621T-I/PT
Description
IC PIC MCU FLASH 32KX16 64TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F6525-IPT.pdf
(396 pages)
3.PIC18F6525-IPT.pdf
(8 pages)
4.PIC18F6525-IPT.pdf
(38 pages)
Specifications of PIC18F6621T-I/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.75K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TFQFP
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3840 B
Interface Type
MSSP, SPI, I2C, EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
53
Number Of Timers
2 x 8 bit
Operating Supply Voltage
4.2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM183032
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit
Data Rom Size
1024 B
Height
1 mm
Length
10 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.2 V
Width
10 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F6621T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC18F6525-IPT PDF datasheet #2
- PIC18F6525-IPT PDF datasheet #3
- PIC18F6525-IPT PDF datasheet #4
- Current page: 157 of 396
- Download datasheet (8Mb)
The maximum PWM resolution (bits) for a given PWM
frequency is given by the equation:
EQUATION 16-3:
TABLE 16-3:
2005 Microchip Technology Inc.
Timer Prescaler (1, 4, 16)
PR2 Value
Maximum Resolution (bits)
Note:
PWM Resolution (max)
PWM Frequency
If the PWM duty cycle value is longer than
the PWM period, the CCP4 pin will not be
cleared.
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS AT 40 MHz
=
log
-----------------------------bits
log
2.44 kHz
---------------
F
F
PWM
2 ( )
OSC
FFh
16
14
PIC18F6525/6621/8525/8621
9.77 kHz
FFh
12
4
39.06 kHz
16.4.3
The following steps should be taken when configuring
the CCP module for PWM operation:
1.
2.
3.
4.
5.
6.
FFh
10
1
Select TMR2 or TMR4 by setting or clearing the
T3CCP2:T3CCP1 bits in the T3CON register.
Set the PWM period by writing to the PR2 or
PR4 register
Set the PWM duty cycle by writing to the
CCPR4L register and CCP4CON<5:4> bits.
Make the CCP4 pin an output by clearing the
TRISG<3> bit.
Set TMR2 or TMR4 prescale value, enable
Timer2 or Timer4 by writing to T2CON or
T4CON.
Configure the CCP4 module for PWM operation.
SETUP FOR PWM OPERATION
156.25 kHz
3Fh
1
8
312.50 kHz
1Fh
1
7
DS39612B-page 155
416.67 kHz
6.58
17h
1
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