PIC16F688-I/P Microchip Technology Inc., PIC16F688-I/P Datasheet - Page 67

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PIC16F688-I/P

Manufacturer Part Number
PIC16F688-I/P
Description
14 PIN, 7 KB FLASH, 256 RAM, 12 I/O
Manufacturer
Microchip Technology Inc.
Datasheet

Specifications of PIC16F688-I/P

A/d Inputs
8-Channel, 10-Bit
Comparators
2
Cpu Speed
5 MIPS
Eeprom Memory
256 Bytes
Input Output
12
Interface
USART
Memory Type
Flash
Number Of Bits
8
Package Type
14-pin PDIP
Programmable Memory
7K Bytes
Ram Size
256 Bytes
Speed
20 MHz
Timers
1-8-bit, 1-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part Electrostatic Device

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8.0
The
conversion of an analog input signal to a 10-bit binary
representation of that signal. This device uses analog
inputs, which are multiplexed into a single sample and
hold circuit. The output of the sample and hold is
connected to the input of the converter. The converter
generates a 10-bit binary result via successive
approximation and stores the conversion result into the
ADC result registers (ADRESL and ADRESH).
The ADC voltage reference is software selectable to
either V
pins.
The ADC can generate an interrupt upon completion of
a conversion. This interrupt can be used to wake-up the
device from Sleep.
Figure 8-1 shows the block diagram of the ADC.
FIGURE 8-1:
© 2006 Microchip Technology Inc.
Analog-to-Digital
DD
ANALOG-TO-DIGITAL
CONVERTER (ADC) MODULE
or a voltage applied to the external reference
RA1/AN1/V
ADC BLOCK DIAGRAM
RC0/AN4
RC1/AN5
RC2/AN6
RC3/AN7
RA0/AN0
RA2/AN2
RA4/AN3
Converter
REF
(ADC)
CHS
V
REF
000
001
010
011
100
101
110
111
allows
V
DD
GO/DONE
VCFG = 0
VCFG = 1
ADON
V
SS
A/D
ADFM
ADRESH ADRESL
0 = Left Justify
1 = Right Justify
PIC16F688
10
10
DS41203C-page 65

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