PIC18LF4420-I/PT Microchip Technology, PIC18LF4420-I/PT Datasheet - Page 138
![IC MCU FLASH 8KX16 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18LF4420-I/PT
Manufacturer Part Number
PIC18LF4420-I/PT
Description
IC MCU FLASH 8KX16 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F2221-ISO.pdf
(46 pages)
2.PIC18F2420-IML.pdf
(412 pages)
3.PIC18F2420-IML.pdf
(16 pages)
4.PIC18F2420-IML.pdf
(8 pages)
5.PIC18F2420-IML.pdf
(6 pages)
6.PIC18F2420-IML.pdf
(8 pages)
7.PIC18F2420-IML.pdf
(4 pages)
Specifications of PIC18LF4420-I/PT
Core Size
8-Bit
Program Memory Size
16KB (8K 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
36
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Controller Family/series
PIC18
No. Of I/o's
36
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
40MHz
No. Of Timers
4
Package
44TQFP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
36
Interface Type
I2C/SPI/USART
On-chip Adc
13-chx10-bit
Number Of Timers
4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF4420-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC18F2221-ISO PDF datasheet
- PIC18F2420-IML PDF datasheet #2
- PIC18F2420-IML PDF datasheet #3
- PIC18F2420-IML PDF datasheet #4
- PIC18F2420-IML PDF datasheet #5
- PIC18F2420-IML PDF datasheet #6
- PIC18F2420-IML PDF datasheet #7
- Current page: 138 of 412
- Download datasheet (7Mb)
PIC18F2420/2520/4420/4520
14.1
Timer3 can operate in one of three modes:
• Timer
• Synchronous Counter
• Asynchronous Counter
FIGURE 14-1:
FIGURE 14-2:
DS39631E-page 136
T1OSO/T13CKI
Note 1: When enable bit, T1OSCEN, is cleared, the inverter and feedback resistor are turned off to eliminate power drain.
T13CKI/T1OSO
Note 1: When enable bit, T1OSCEN, is cleared, the inverter and feedback resistor are turned off to eliminate power drain.
Timer3 Operation
T1OSI
T1OSI
CCP1/CCP2 Select from T3CON<6,3>
CCP1/CCP2 Select from T3CON<6,3>
CCP1/CCP2 Special Event Trigger
CCP1/CCP2 Special Event Trigger
Timer1 Oscillator
T1OSCEN
T3CKPS<1:0>
T3SYNC
TMR3ON
Timer1 Oscillator
TIMER3 BLOCK DIAGRAM
T1OSCEN
T3CKPS<1:0>
T3SYNC
TMR3ON
TIMER3 BLOCK DIAGRAM (16-BIT READ/WRITE MODE)
(1)
(1)
TMR3CS
TMR3CS
Internal
Clock
Clock
F
Internal
F
OSC
OSC
/4
/4
1
0
1
0
Timer1 Clock Input
Timer1 Clock Input
Clear TMR3
Clear TMR3
Prescaler
Prescaler
1, 2, 4, 8
1, 2, 4, 8
The operating mode is determined by the clock select
bit, TMR3CS (T3CON<1>). When TMR3CS is cleared
(= 0), Timer3 increments on every internal instruction
cycle (F
on every rising edge of the Timer1 external clock input
or the Timer1 oscillator, if enabled.
As with Timer1, the RC1/T1OSI and RC0/T1OSO/
T13CKI pins become inputs when the Timer1 oscillator
is enabled. This means the values of TRISC<1:0> are
ignored and the pins are read as ‘0’.
2
2
OSC
TMR3L
TMR3L
/4). When the bit is set, Timer3 increments
8
Sleep Input
Sleep Input
8
Synchronize
Synchronize
Detect
Detect
High Byte
High Byte
TMR3H
TMR3
TMR3
8
© 2008 Microchip Technology Inc.
8
8
Internal Data Bus
1
0
1
0
Read TMR1L
Write TMR1L
on Overflow
on Overflow
TMR3IF
TMR3IF
Set
Set
Timer3
On/Off
Timer3
On/Off
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