PIC18LF2431-I/SO Microchip Technology, PIC18LF2431-I/SO Datasheet - Page 4
![IC MCU FLASH 8KX16 28SOIC](/photos/6/59/65909/150-28-soic_sml.jpg)
PIC18LF2431-I/SO
Manufacturer Part Number
PIC18LF2431-I/SO
Description
IC MCU FLASH 8KX16 28SOIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16LF627A-IP.pdf
(8 pages)
3.PIC16F818-ISO.pdf
(6 pages)
4.PIC18F2331-ISO.pdf
(392 pages)
5.PIC18F2331-ISO.pdf
(8 pages)
6.PIC18F2331-ISO.pdf
(6 pages)
7.PIC18F2331-ISO.pdf
(16 pages)
8.PIC18LF2331-ISO.pdf
(4 pages)
9.PIC18LF2331-ISO.pdf
(40 pages)
10.PIC18F4331-EP.pdf
(400 pages)
Specifications of PIC18LF2431-I/SO
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, LVD, Power Control PWM, QEI, POR, PWM, WDT
Number Of I /o
24
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 5x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Controller Family/series
PIC18
No. Of I/o's
24
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
40MHz
No. Of Timers
4
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
EUSART, I2C, SPI, SSP
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
24
Number Of Timers
1 x 8
Operating Supply Voltage
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, DM183021, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
5 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF2431-I/SO
Manufacturer:
BOURNS
Quantity:
30 000
TIMER1 MODULE
EXAMPLE 1:
EXAMPLE 2:
EXAMPLE 3:
DS80233C-page 4
Note:
ISR @ 0x004
RELOAD
EXIT
ISR @ 0x0008
HIGHINT
ISR @ 0x0018
RELOAD
EXIT
MOVWF
MOVF
MOVWF
BANKSEL PIR
BTFSS
GOTO
BSF
MOVF
MOVWF
SWAPF
SWAPF
RETFIE
BRA
BTFSC
BSF
RETFIE FAST
MOVFF
MOVFF
MOVFF
BTFSS
BRA
BSF
MOVFF
MOVFF
MOVFF
RETFIE
These instructions are required based on the function of the ISR. If the only code in the ISR is to reload
Timer1, then they are not required, but may be required if additional code is added.
HIGHINT
PIR,TMRIF
TMR1H,7
STATUS,STATUS_TEMP
WREG,WREG_TEMP
BSR,BSR_TEMP
PIR,TMRIF
EXIT
TMR1H,7
BSR_TEMP,BSR
WREG_TEMP,WREG
STATUS_TEMP,STATUS
PIC12/PIC14/PIC16 INTERRUPT SERVICE ROUTINE
w_temp
STATUS,w
status_temp
PIR,TMRIF
EXIT
TMR1H,7
status_temp,w
STATUS
w_temp,f
w_temp,w
PIC18 HIGH PRIORITY INTERRUPT SERVICE ROUTINE
PIC18 LOW PRIORITY INTERRUPT SERVICE ROUTINE
; (3-4Tcy), fixed interrupt latency
; (1Tcy), save off current W register contents
; (1Tcy), move status register into W register
; (1Tcy), save off contents of STATUS register
; (2Tcy), choose correct SFR bank
; (2Tcy), did a Timer1 overflow occur?
; No
; (1Tcy) Yes, reload for a 1 second overflow
; retrieve copy of STATUS register
; restore pre-isr STATUS register contents
; restore pre-isr W register contents
Total = 11-12 T
; (3-4Tcy), fixed interrupt latency
; (2Tcy), go to high priority interrupt routine
; (1Tcy), did a Timer1 overflow occur?
; (1Tcy) Yes, reload for a 1 second overflow
Total = 7-8 T
; (3-4Tcy), fixed interrupt latency
; (2Tcy), save STATUS register
; (2Tcy), save working register, refer to note 1
; (2Tcy), save BSR register, refer to note 1
; (2Tcy), did a Timer1 overflow occur?
; No
; (1Tcy) Yes, reload for a 1 second overflow
;restore BSR register, refer to note 1
;restore working register, refer to note 1
;restore STATUS register
Total = 12-13 T
CY
CY
CY
(if Timer1 overflow occurred)
(if Timer1 overflow occurred)
(if Timer1 overflow occurred)
© 2007 Microchip Technology Inc.