PIC16F874A-I/ML Microchip Technology, PIC16F874A-I/ML Datasheet - Page 137
![IC MCU FLASH 4KX14 A/D 44QFN](/photos/6/81/68122/150-44-qfn_sml.jpg)
PIC16F874A-I/ML
Manufacturer Part Number
PIC16F874A-I/ML
Description
IC MCU FLASH 4KX14 A/D 44QFN
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16C770-ISO.pdf
(8 pages)
4.PIC16F873A-ISO.pdf
(234 pages)
5.PIC16F873A-ISO.pdf
(6 pages)
6.PIC16F873A-ISO.pdf
(4 pages)
7.PIC16F873A-ISO.pdf
(6 pages)
8.PIC16F873A-ISO.pdf
(4 pages)
9.PIC16F873A-ISO.pdf
(22 pages)
Specifications of PIC16F874A-I/ML
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
7KB (4K x 14)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
192 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-QFN
For Use With
XLT44QFN2 - SOCKET TRAN ICE 44QFN/40DIPAC164322 - MODULE SOCKET MPLAB PM3 28/44QFN444-1001 - DEMO BOARD FOR PICMICRO MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16C770-ISO PDF datasheet #3
- PIC16F873A-ISO PDF datasheet #4
- PIC16F873A-ISO PDF datasheet #5
- PIC16F873A-ISO PDF datasheet #6
- PIC16F873A-ISO PDF datasheet #7
- PIC16F873A-ISO PDF datasheet #8
- PIC16F873A-ISO PDF datasheet #9
- Current page: 137 of 688
- Download datasheet (3Mb)
1997 Microchip Technology Inc.
Example 8-6: Source File Template
Example 8-7: Typical Interrupt Service Routine (ISR)
INT_ERROR_LP1
T1_INT
AD_INT
LCD_INT
PORTB_INT
END_ISR
;
;
;
; Specify Device Configuration Bits
;
RESET_ADDR
org
LIST
Revision History
#INCLUDE
#INCLUDE
#INCLUDE
__CONFIG
org
end
PUSH_MACRO
CLRF
BTFSC
GOTO
BTFSC
GOTO
:
:
BTFSC
GOTO
BTFSC
GOTO
GOTO
:
BCF
GOTO
:
BCF
GOTO
:
BCF
GOTO
:
POP_MACRO
RETFIE
ISR_ADDR
0x00
p = p16C77
STATUS
PIR1, TMR1IF
T1_INT
PIR1, ADIF
AD_INT
PIR1, LCDIF
LCD_INT
INTCON, RBIF
PORTB_INT
INT_ERROR_LP1
:
PIR1, TMR1IF
END_ISR
PIR1, ADIF
END_ISR
PIR1, LCDIF
END_ISR
<P16C77.INC>
<MY_STD.MAC>
<APP.MAC>
_XT_OSC & _PWRTE_ON & _BODEN_OFF & _CP_OFF & _WDT_ON
; Start of Program Memory
; First instruction to execute after a reset
;
; MACRO that saves required context registers,
;
; Bank0
; Timer1 overflow interrupt?
; YES
; NO, A/D interrupt?
; YES, do A/D thing
; NO, do this for all sources
;
; NO, LCD interrupt
; YES, do LCD thing
; NO, Change on PORTB interrupt?
; YES, Do PortB Change thing
; NO, do error recovery
; This is the trap if you enter the ISR
;
;
; Routine when the Timer1 overflows
;
; Clear the Timer1 overflow interrupt flag
; Ready to leave ISR (for this request)
; Routine when the A/D completes
;
; Clear the A/D interrupt flag
; Ready to leave ISR (for this request)
; Routine when the LCD Frame begins
;
; Clear the LCD interrupt flag
; Ready to leave ISR (for this request)
; Routine when PortB has a change
;
;
; MACRO that restores required registers,
;
; Return and enable interrupts
; List Directive,
or in-line code
or in-line code
but there were no expected
interrupts
; Microchip Device Header File
; Include my standard macros
; File which includes macros specific
;
Section 8. Interrupts
to this application
DS31008A-page 8-15
8
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