PIC18LF4420-I/PT Microchip Technology, PIC18LF4420-I/PT Datasheet - Page 216
![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: 216 of 412
- Download datasheet (7Mb)
PIC18F2420/2520/4420/4520
FIGURE 18-7:
TABLE 18-6:
18.2.4
During Sleep mode, all clocks to the EUSART are
suspended. Because of this, the Baud Rate Generator
is inactive and a proper byte reception cannot be per-
formed. The auto-wake-up feature allows the controller
to wake-up due to activity on the RX/DT line while the
EUSART is operating in Asynchronous mode.
The auto-wake-up feature is enabled by setting the
WUE bit (BAUDCON<1>). Once set, the typical receive
sequence on RX/DT is disabled and the EUSART
remains in an Idle state, monitoring for a wake-up event
independent of the CPU mode. A wake-up event con-
sists of a high-to-low transition on the RX/DT line. (This
coincides with the start of a Sync Break or a Wake-up
Signal character for the LIN protocol.)
DS39631E-page 214
INTCON
PIR1
PIE1
IPR1
RCSTA
RCREG
TXSTA
BAUDCON
SPBRGH
SPBRG
Legend: — = unimplemented locations read as ‘0’. Shaded cells are not used for asynchronous reception.
Note 1:
Name
Note:
RX (pin)
Rcv Shift Reg
Rcv Buffer Reg
Read Rcv
Buffer Reg
RCREG
RCIF
(Interrupt Flag)
OERR bit
CREN
This timing diagram shows three words appearing on the RX input.
causing the OERR (overrun) bit to be set.
Reserved in 28-pin devices; always maintain these bits clear.
AUTO-WAKE-UP ON SYNC BREAK
CHARACTER
EUSART Receive Register
GIE/GIEH PEIE/GIEL
EUSART Baud Rate Generator Register High Byte
EUSART Baud Rate Generator Register Low Byte
ABDOVF
PSPIE
PSPIP
PSPIF
CSRC
SPEN
Bit 7
REGISTERS ASSOCIATED WITH ASYNCHRONOUS RECEPTION
(1)
(1)
(1)
ASYNCHRONOUS RECEPTION
Start
bit
bit 0
RCIDL
ADIE
ADIP
Bit 6
ADIF
RX9
TX9
bit 1
TMR0IE
RXDTP
SREN
TXEN
RCIF
RCIE
RCIP
Bit 5
bit 7/8
TXCKP
Stop
INT0IE
CREN
SYNC
bit
Bit 4
TXIF
TXIE
TXIP
Word 1
RCREG
Start
bit
ADDEN
SENDB
bit 0
BRG16
Following a wake-up event, the module generates an
RCIF interrupt. The interrupt is generated synchro-
nously to the Q clocks in normal operating modes
(Figure 18-8) and asynchronously, if the device is in
Sleep mode (Figure 18-9). The interrupt condition is
cleared by reading the RCREG register.
The WUE bit is automatically cleared once a low-to-
high transition is observed on the RX line following the
wake-up event. At this point, the EUSART module is in
Idle mode and returns to normal operation. This signals
to the user that the Sync Break event is over.
SSPIF
SSPIE
SSPIP
RBIE
Bit 3
The RCREG (receive buffer) is read after the third word
TMR0IF
CCP1IE
CCP1IP
CCP1IF
bit 7/8
BRGH
FERR
Word 2
RCREG
Bit 2
—
Stop
bit
TMR2IE
TMR2IP
TMR2IF
INT0IF
OERR
TRMT
Start
© 2008 Microchip Technology Inc.
WUE
Bit 1
bit
TMR1IE
TMR1IP
TMR1IF
ABDEN
RX9D
TX9D
RBIF
bit 7/8
Bit 0
Stop
bit
on page
Values
Reset
49
52
52
52
51
51
51
51
51
51
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