PIC16LF872T-I/SS Microchip Technology, PIC16LF872T-I/SS Datasheet - Page 83
![IC MCU FLASH 2KX14 EE A/D 28SSOP](/photos/6/81/68119/150-28-ssop_sml.jpg)
PIC16LF872T-I/SS
Manufacturer Part Number
PIC16LF872T-I/SS
Description
IC MCU FLASH 2KX14 EE A/D 28SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16C770-ISO.pdf
(8 pages)
2.PIC16F872-ISO.pdf
(168 pages)
3.PIC16F872-ISO.pdf
(5 pages)
4.PIC16F872-ISO.pdf
(6 pages)
Specifications of PIC16LF872T-I/SS
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16C770-ISO PDF datasheet
- PIC16F872-ISO PDF datasheet #2
- PIC16F872-ISO PDF datasheet #3
- PIC16F872-ISO PDF datasheet #4
- Current page: 83 of 168
- Download datasheet (3Mb)
The ADRESH:ADRESL registers contain the 10-bit
result of the A/D conversion. When the A/D conversion
is complete, the result is loaded into this A/D result reg-
ister pair, the GO/DONE bit (ADCON0<2>) is cleared
and the A/D interrupt flag bit ADIF is set. The block dia-
gram of the A/D module is shown in Figure 10-1.
After the A/D module has been configured as desired,
the selected channel must be acquired before the con-
version is started. The analog input channels must
have their corresponding TRIS bits selected as inputs.
To determine sample time, see Section 10.1. After this
acquisition time has elapsed, the A/D conversion can
be started.
These steps should be followed for doing an A/D
conversion:
1.
FIGURE 10-1:
© 2006 Microchip Technology Inc.
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)
digital I/O (ADCON1)
Converter
A/D
A/D BLOCK DIAGRAM
(Reference
(Reference
Voltage)
Voltage)
V
V
REF
REF
-
+
(Input Voltage)
PCFG3:PCFG0
PCFG3:PCFG0
V
AIN
V
V
DD
SS
2.
3.
4.
5.
6.
7.
Configure A/D interrupt (if desired):
• Set PEIE 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
(ADRESH:ADRESL), clear bit ADIF if required.
For the next conversion, go to step 1 or step 2,
as required. The A/D conversion time per bit is
defined as T
• Clear ADIF bit
• Set ADIE bit
(with interrupts enabled); OR
CHS2:CHS0
A/D
AD
100
011
010
001
000
.
Result
PIC16F872
register
RA1/AN1
RA2/AN2/V
RA0/AN0
RA5/AN4
RA3/AN3/V
DS30221C-page 81
REF
REF
pair
+
-
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