PIC16C716-20I/SO Microchip Technology, PIC16C716-20I/SO Datasheet - Page 49

• Manufacturer Part Number: PIC16C716-20I/SO
• Description: IC MCU OTP 2KX14 A/D PWM 18SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C716-20I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 13
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 18-SOIC (7.5mm Width)
• For Use With: XLT18SO-1 - SOCKET TRANSITION 18SOIC 300MILISPICR1 - ADAPTER IN-CIRCUIT PROGRAMMING309-1011 - ADAPTER 18-SOIC TO 18-DIP309-1010 - ADAPTER 18-SOIC TO 18-DIPAC164010 - MODULE SKT PROMATEII DIP/SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -

The ADRES register contains the result of the A/D
conversion. When the A/D conversion is complete, the
result is loaded into the ADRES register, the GO/DONE
bit (ADCON0<2>) is cleared and the A/D Interrupt Flag
bit ADIF is set. The block diagram of the A/D module is
shown in Figure 8-3.
The value that is in the ADRES register is not modified
for a Power-on Reset. The ADRES register will contain
unknown data after a Power-on Reset.
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 an
input. To determine acquisition time, see Section 8.1
“A/D Acquisition Requirements”. After this acquisi-
tion time has elapsed, the A/D conversion can be
started. The following steps should be followed for
doing an A/D conversion:
FIGURE 8-3:
© 2005 Microchip Technology Inc.
Converter
A/D
A/D BLOCK DIAGRAM
(Reference
voltage)
V
REF
(Input voltage)
PCFG2:PCFG0
V
IN
V
DD
000 or
010 or
100 or
110 or 111
001 or
011 or
101
1.
2.
3.
4.
5.
6.
7.
Configure the A/D module:
• Configure analog pins/voltage reference/
• 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
OR
• Waiting for the A/D interrupt
Read A/D Result register (ADRES), 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
required before next acquisition starts.
and digital I/O (ADCON1)
CHS2:CHS0
PIC16C712/716
AD
011
010
001
000
. A minimum wait of 2T
DS41106B-page 47
RA2/AN2
RA1/AN1
RA0/AN0
RA3/AN3/V
AD
REF
is