PIC16F726-I/SP Microchip Technology Inc., PIC16F726-I/SP Datasheet - Page 55
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PIC16F726-I/SP
Manufacturer Part Number
PIC16F726-I/SP
Description
28 PIN, 14 KB FLASH, 1.8V-5.5V, 16 MHZ INT. OSC.
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F726-ISP.pdf
(266 pages)
Specifications of PIC16F726-I/SP
A/d Inputs
11-Channel, 8-Bit
Comparators
2
Cpu Speed
5 MIPS
Eeprom Memory
0 Bytes
Frequency
20 MHz
Input Output
25
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
28-pin SPDIP
Programmable Memory
14K Bytes
Ram Size
368 Bytes
Resistance, Drain To Source On
Bytes
Serial Interface
I2C, SPI, AUSART
Speed
20 MHz
Timers
2-8-bit, 1-16-bit
Voltage, Range
1.8-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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6.2.1
The ANSELA register (Register 6-4) is used to
configure the Input mode of an I/O pin to analog.
Setting the appropriate ANSELA bit high will cause all
digital reads on the pin to be read as ‘0’ and allow
analog functions on the pin to operate correctly.
The state of the ANSELA bits has no affect on digital
output functions. A pin with TRIS clear and ANSEL set
will still operate as a digital output, but the Input mode
will be analog. This can cause unexpected behavior
when executing read-modify-write instructions on the
affected port.
REGISTER 6-4:
© 2008 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-6
bit 5-0
Note 1:
U-0
—
ANSELA REGISTER
When setting a pin to an analog input, the corresponding TRIS bit must be set to Input mode in order to
allow external control of the voltage on the pin.
Unimplemented: Read as ‘0’
ANSA<5:0>: Analog Select between Analog or Digital Function on pins RA<5:0>, respectively
0 = Digital I/O. Pin is assigned to port or Digital special function.
1 = Analog input. Pin is assigned as analog input
U-0
—
ANSELA: PORTA ANALOG SELECT REGISTER
W = Writable bit
‘1’ = Bit is set
ANSA5
R/W-1
ANSA4
R/W-1
Preliminary
PIC16F72X/PIC16LF72X
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
ANSA3
R/W-1
(1)
. Digital Input buffer disabled.
ANSA2
R/W-1
x = Bit is unknown
ANSA1
R/W-1
DS41341B-page 53
ANSA0
R/W-1
bit 0
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