PIC18LF2680-I/SO Microchip Technology, PIC18LF2680-I/SO Datasheet - Page 4
![IC MCU FLASH 32KX16 28SOIC](/photos/6/59/65909/150-28-soic_sml.jpg)
PIC18LF2680-I/SO
Manufacturer Part Number
PIC18LF2680-I/SO
Description
IC MCU FLASH 32KX16 28SOIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F2221-ISO.pdf
(46 pages)
3.PIC18F4585-IPT.pdf
(482 pages)
4.PIC18F4585-IPT.pdf
(14 pages)
5.PIC18F4585-IPT.pdf
(8 pages)
6.PIC18F4585-IPT.pdf
(12 pages)
7.PIC18F4585-IPT.pdf
(4 pages)
Specifications of PIC18LF2680-I/SO
Core Size
8-Bit
Program Memory Size
64KB (32K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
25
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.25K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 8x10b
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
25
Eeprom Memory Size
1024Byte
Ram Memory Size
3328Byte
Cpu Speed
40MHz
No. Of Timers
4
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3.25 KB
Interface Type
I2C, SPI, EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
28
Number Of Timers
4 bit
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, DM163011, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
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
Part Number:
PIC18LF2680-I/SO
Manufacturer:
MICROCHI
Quantity:
20 000
TIMER1 MODULE
EXAMPLE 2:
EXAMPLE 3:
DS80329B-page 4
HIntVector code 0x0008
HighISR:
;
;
RTCisr:
; If TMR1 update can be completed before clock pulse
; goes low, start update here
Update:
NextISR:
retfieFAST
goto
btfss
goto
Insert the next 4 lines of code when TMR1 can not
be reliably updated before clock pulse goes low
btfsc
bra
btfss
bra
bsf
bcf
incf
retfie FAST
....
BTFSC
GOTO
BTFSS
GOTO
BCF
MOVF
ADDWF
BTFSC
INCF
MOVF
MOVWF
MOVF
MOVW
BCF
BSF
BSF
Critical Timing of code sequence for instructions.
HighISR
code
PIR1,TMR1IF
NextISR
TMR1L,0
$-2
TMR1L,0
$-2
TMR1H,7
PIR1,TMR1IF
Seconds,F
T1CON, TMR1CS
TMR1, W
TMR1_Reload_lo, F
STATUS, C
TMR1_Reload_hi, F
TMR1_Reload_hi, W
TMR1H
TMR1_Reload_lo, W
TMR1L
T1CON, TMR1ON
T1CON, TMR1CS
T1CON, TMR1ON
TMR1L, 0
$-1
TMR1L, 0
$-1
PIC12/14/16/17 CODE EXAMPLE FOR OVERFLOW PERIODS OTHER THAN 1
SECOND OR USING AN OSCILLATOR OTHER THAN 32.768 kHZ
PIC18 HIGH-PRIORITY INTERRUPT SERVICE ROUTINE
;
;
;
;
;
;
;
;
;
;
;
;
;
;
(3-4Tcy), fixed interrupt latency
(3Tcy) jump to high priority ISR code
unprotected code space
(1Tcy) TMR1 overflow?
(2Tcy) No, check another interrupt source
wait for TMR1L<0> to become clear
may already be clear (loops for 0 to 30.5us)
wait for TMR1L<0> to become set
(loops for 30.5us)
reload for next 1 second overflow
clear flag
record second
Another interrupt source...
code for other interrupts, if needed
;Select system clock for Timer1.
;Sample low byte of Timer1 before increments.
;Add reload value for low byte
;if this generates a carry then
;modify the reload value for the high byte.
;Reload Timer1 high byte.
;Reload Timer1 low byte.
;Timer1 off.
;Select external crystal.
;Timer1 on.
;Timer has just incremented, 31μs before next rising
edge to complete reload.
2010 Microchip Technology Inc.