PIC16LF72-I/ML Microchip Technology, PIC16LF72-I/ML Datasheet - Page 55

• Manufacturer Part Number: PIC16LF72-I/ML
• Description: IC PIC MCU FLASH 2KX14 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16LF72-I/ML

• 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
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 5x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Eeprom Size: -

10.0
The analog-to-digital (A/D) converter module has five
inputs for the PIC16F72.
The A/D allows conversion of an analog input signal to
a corresponding 8-bit digital number. The output of the
sample and hold is the input into the converter, which
generates the result via successive approximation. The
analog reference voltage is software selectable to
either the device’s positive supply voltage (V
voltage level on the RA3/AN3/V
The A/D converter has a unique feature of being able
to operate while the device is in SLEEP mode. To oper-
ate in SLEEP, the A/D conversion clock must be
derived from the A/D’s internal RC oscillator.
REGISTER 10-1:
© 2007 Microchip Technology Inc.
ANALOG-TO-DIGITAL
CONVERTER (A/D) MODULE
bit 7-6
bit 5-3
bit 2
bit 1
bit 0
ADCON0: A/D CONTROL REGISTER 0 (ADDRESS 1Fh)
bit 7
ADCS<1:0>: A/D Conversion Clock Select bits
00 = F
01 = F
10 = F
11 = F
CHS<2:0>: Analog Channel Select bits
000 = Channel 0, (RA0/AN0)
001 = Channel 1, (RA1/AN1)
010 = Channel 2, (RA2/AN2)
011 = Channel 3, (RA3/AN3)
100 = Channel 4, (RA5/AN4)
GO/DONE: A/D Conversion Status bit
If ADON = 1:
1 = A/D conversion in progress (setting this bit starts the A/D conversion)
0 = A/D conversion not in progress (this bit is automatically cleared by hardware when the A/D
Unimplemented: Read as ‘0’
ADON: A/D On bit
1 = A/D converter module is operating
0 = A/D converter module is shut-off and consumes no operating current
Legend:
R = Readable bit
- n = Value at POR
ADCS1
R/W-0
conversion is complete)
OSC
OSC
OSC
RC
REF
(clock derived from the internal A/D module RC oscillator)
/2
/8
/32
pin.
ADCS0
R/W-0
DD
) or the
R/W-0
CHS2
W = Writable bit
‘1’ = Bit is set
R/W-0
CHS1
The A/D module has three registers:
• A/D Result Register
• A/D Control Register 0
• A/D Control Register 1
A device RESET forces all registers to their RESET
state. This forces the A/D module to be turned off and
any conversion is aborted.
The ADCON0 register, shown in Register 10-1, con-
trols the operation of the A/D module. The ADCON1
register, shown in Register 10-2, configures the func-
tions of the port pins. The port pins can be configured
as analog inputs (RA3 can also be a voltage reference)
or a digital I/O.
For more information on use of the A/D Converter, see
AN546 - Use of A/D Converter, or refer to the PIC™
Mid-Range
(DS33023).
R/W-0
CHS0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
MCU
GO/DONE
R/W-0
Family
PIC16F72
ADRES
ADCON0
ADCON1
x = Bit is unknown
Reference
DS39597C-page 53
U-0
—
ADON
R/W-0
Manual
bit 0