PIC16F819-I/SSTSL Microchip Technology, PIC16F819-I/SSTSL Datasheet - Page 85
PIC16F819-I/SSTSL
Manufacturer Part Number
PIC16F819-I/SSTSL
Description
IC PIC MCU FLASH 2KX14 20SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F818-ISO.pdf
(176 pages)
4.PIC16F818-ISO.pdf
(6 pages)
5.PIC16F818-ISO.pdf
(8 pages)
6.PIC16F818-ISO.pdf
(8 pages)
Specifications of PIC16F819-I/SSTSL
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F818-ISO PDF datasheet #3
- PIC16F818-ISO PDF datasheet #4
- PIC16F818-ISO PDF datasheet #5
- PIC16F818-ISO PDF datasheet #6
- Current page: 85 of 176
- Download datasheet (4Mb)
The ADRESH:ADRESL registers contain the result of
the A/D conversion. When the A/D conversion is
complete, the result is loaded into the A/D Result register
pair, the GO/DONE bit (ADCON0<2>) is cleared and
A/D Interrupt Flag bit, ADIF, is set. The block diagram of
the A/D module is shown in Figure 11-1.
After the A/D module has been configured as desired,
the selected channel must be acquired before the
conversion is started. The analog input channels must
have their corresponding TRIS bits selected as inputs.
To determine sample time, see Section 11.1 “A/D
Acquisition Requirements”. After this sample time
has elapsed, the A/D conversion can be started.
FIGURE 11-1:
2003 Microchip Technology Inc.
Converter
A/D
A/D BLOCK DIAGRAM
(Reference
(Reference
Voltage)
Voltage)
V
V
REF
REF
-
+
(Input Voltage)
PCFG<3:0>
PCFG<3:0>
V
IN
AV
AV
DD
SS
These steps should be followed for doing an A/D
conversion:
1.
2.
3.
4.
5.
6.
7.
Configure the A/D module:
• Configure analog pins/voltage reference and
• Select A/D input channel (ADCON0)
• Select A/D conversion clock (ADCON0)
• Turn on A/D module (ADCON0)
Configure A/D interrupt (if desired):
• Clear ADIF bit
• Set ADIE bit
• Set GIE bit
Wait the required acquisition time.
Start conversion:
• Set GO/DONE bit (ADCON0)
Wait for A/D conversion to complete by either:
• Polling for the GO/DONE bit to be cleared
• Waiting for the A/D interrupt
Read A/D Result register pair
(ADRESH:ADRESL), clear bit ADIF if required.
For next conversion, go to step 1 or step 2 as
required. The A/D conversion time per bit is
defined as T
required before the next acquisition starts.
CHS<3:0>
digital I/O (ADCON1)
(with interrupts disabled); OR
PIC16F818/819
100
011
010
001
000
AD
. A minimum wait of 2 T
RA1/AN1
RA4/AN4/T0CKI
RA3/AN3/V
RA2/AN2/V
RA0/AN0
DS39598D-page 83
AD
REF
REF
-
+
is
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