PIC16F874-04I/P Microchip Technology, PIC16F874-04I/P Datasheet - Page 394
![IC MCU FLASH 4KX14 EE 40DIP](/photos/6/61/66192/150-40-dip_sml.jpg)
PIC16F874-04I/P
Manufacturer Part Number
PIC16F874-04I/P
Description
IC MCU FLASH 4KX14 EE 40DIP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F873-04SO.pdf
(218 pages)
4.PIC16F873-04SO.pdf
(5 pages)
5.PIC16F873-04SO.pdf
(5 pages)
Specifications of PIC16F874-04I/P
Core Size
8-Bit
Program Memory Size
7KB (4K x 14)
Oscillator Type
External
Core Processor
PIC
Speed
4MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
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
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Controller Family/series
PIC16F
No. Of I/o's
33
Eeprom Memory Size
128Byte
Ram Memory Size
192Byte
Cpu Speed
4MHz
No. Of
RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
444-1001 - DEMO BOARD FOR PICMICRO MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F874-04I/PQ
Manufacturer:
Microchip Technology
Quantity:
10 000
Company:
Part Number:
PIC16F874-04I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F873-04SO PDF datasheet #3
- PIC16F873-04SO PDF datasheet #4
- PIC16F873-04SO PDF datasheet #5
- Current page: 394 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
21.7
DS31021A-page 21-10
A/D Conversions
Example 21-2
inputs. The analog reference (V
conversion clock is F
Clearing the GO/DONE bit during a conversion will abort the current conversion. The ADRES
register will NOT be updated with the partially completed A/D conversion sample. That is, the
ADRES register will continue to contain the value of the last completed conversion (or the last
value written to the ADRES register). After the A/D conversion is aborted, a 2T
before the next acquisition is started. After this 2T
on the selected channel.
Example 21-2:
Figure 21-4: A/D Conversion T
;
;
;
;
Note:
Ensure that the required sampling time for the selected input
channel has elapsed. Then the conversion may be started.
BSF
CLRF
BSF
BCF
MOVLW
MOVWF
BCF
BSF
BSF
BSF
Set GO bit
T
:
:
:
AD
1 T
The GO/DONE bit should NOT be set in the same instruction that turns on the A/D,
due to the required acquition time requirement.
Holding capacitor is disconnected
from analog input
show how to perform an A/D conversion. The I/O pins are configured as analog
STATUS, RP0
ADCON1
PIE1,
STATUS, RP0
0xC1
ADCON0
PIR1,
INTCON, PEIE
INTCON, GIE
ADCON0, GO
AD
b7
Doing an A/D Conversion
2 T
RC
. The conversion is performed on the AN0 channel.
AD
b6
ADIE
ADIF
3 T
AD
b5
REF
AD
4 T
) is the device V
Cycles
; Select Bank1
; Configure A/D inputs
; Enable A/D interrupts
; Select Bank0
; RC Clock, A/D is on, Channel 0 is selected
;
; Clear A/D interrupt flag bit
; Enable peripheral interrupts
; Enable all interrupts
; Start A/D Conversion
; The ADIF bit will be set and the GO/DONE
; bit is cleared upon completion of the
;
b4
AD
5 T
A/D Conversion.
Holding capacitor is connected to analog input
b3
AD
6 T
AD
DD
wait, an acquisition is automatically started
. The A/D interrupt is enabled, and the A/D
b2
AD
Next Q4: ADRES is loaded
7 T
AD
b1
8 T
GO bit is cleared
ADIF bit is set
1997 Microchip Technology Inc.
AD
b0
9 T
AD
b0
AD
10
wait is required
T
AD
11
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