PIC12F629T-E/MD MICROCHIP [Microchip Technology], PIC12F629T-E/MD Datasheet - Page 43
![no-image](/images/no-image-200.jpg)
PIC12F629T-E/MD
Manufacturer Part Number
PIC12F629T-E/MD
Description
8-Pin, Flash-Based 8-Bit CMOS Microcontrollers
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC12F629T-EMD.pdf
(136 pages)
- Current page: 43 of 136
- Download datasheet (2Mb)
7.0
The
conversion of an analog input signal to a 10-bit binary
representation of that signal. The PIC12F675 has four
analog inputs, multiplexed into one sample and hold
FIGURE 7-1:
7.1
There are two registers available to control the
functionality of the A/D module:
1.
2.
7.1.1
The ANS3:ANS0 bits (ANSEL<3:0>) and the TRISIO
bits control the operation of the A/D port pins. Set the
corresponding TRISIO bits to set the pin output driver
to its high-impedance state. Likewise, set the
corresponding ANS bit to disable the digital input
buffer.
7.1.2
There are four analog channels on the PIC12F675,
AN0
(ADCON0<3:2>) control which channel is connected to
the sample and hold circuit.
7.1.3
There are two options for the voltage reference to the
A/D converter: either V
applied to V
2010 Microchip Technology Inc.
Note:
ADCON0 (Register 7-1)
ANSEL (Register 7-2)
Analog-to-Digital
through
ANALOG-TO-DIGITAL
CONVERTER (A/D) MODULE
(PIC12F675 ONLY)
A/D Configuration and Operation
Analog voltages on any pin that is defined
as a digital input may cause the input
buffer to conduct excess current.
VOLTAGE REFERENCE
ANALOG PORT PINS
CHANNEL SELECTION
REF
GP1/AN1/V
is used. The VCFG bit (ADCON0<6>)
GP0/AN0
GP2/AN2
GP4/AN3
AN3.
REF
A/D BLOCK DIAGRAM
DD
is used, or an analog voltage
CHS1:CHS0
converter
The
V
CHS1:CHS0
REF
(A/D)
V
DD
GO/DONE
allows
VCFG =
VCFG =
bits
ADON
0
1
V
SS
ADC
circuit. The output of the sample and hold is connected
to the input of the converter. The converter generates a
binary result via successive approximation and stores
the result in a 10-bit register. The voltage reference
used in the conversion is software selectable to either
V
shows the block diagram of the A/D on the PIC12F675.
controls the voltage reference selection. If VCFG is set,
then the voltage on the V
otherwise, V
7.1.4
The A/D conversion cycle requires 11 T
of the conversion clock is software selectable via the
ADCS bits (ANSEL<6:4>). There are seven possible
clock options:
• F
• F
• F
• F
• F
• F
• F
For correct conversion, the A/D conversion clock
(1/T
1.6 s. Table 7-1 shows a few T
selected frequencies.
DD
OSC
OSC
OSC
OSC
OSC
OSC
RC
AD
or a voltage applied by the V
ADFM
) must be selected to ensure a minimum T
(dedicated internal RC oscillator)
/2
/4
/8
/16
/32
/64
ADRESH ADRESL
CONVERSION CLOCK
DD
PIC12F629/675
is the reference.
10
10
REF
pin is the reference;
AD
REF
DS41190G-page 43
calculations for
AD
pin. Figure 7-1
. The source
AD
of
Related parts for PIC12F629T-E/MD
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![PIC12F629-I/SN](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC MCU CMOS FLSH-BASE 8BIT 8SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F629](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![PIC12F629-I/P](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC MCU CMOS FLASH-BASE 8BIT 8DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F629-I/MF](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 8BIT 1K FLASH 8-DFN
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F629-I/MD](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC PIC MCU FLASH 1KX14 8DFN
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F629-E/SN](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 8BIT 1K FLASH 8-SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F629-E/P](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 8BIT 1K FLASH 8-DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F629-E/MF](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 8BIT 1K FLASH 8-DFN
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F629-E/MD](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
1.75KB Flash, 64 RAM, 6 I/O 8 DFN 4x4mm TUBE
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F629T-I/SN](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 8BIT 1K FLASH 8-SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F629T-E/MF](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 8BIT 1K FLASH 8-DFN
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F629T-E/SN](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 8BIT 1K FLASH 8-SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F629T-I/MF](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 8BIT 1K FLASH 8-DFN
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F1840-I/P](/photos/16/3/160349/pdip8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core 8 PDI
Manufacturer:
Microchip Technology
Datasheet:
![PIC12LF1840-I/MF](/photos/16/0/160077/dfn8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Nano
Manufacturer:
Microchip Technology
Datasheet: