PIC16LF1827-I/SO Microchip Technology, PIC16LF1827-I/SO Datasheet - Page 125
PIC16LF1827-I/SO
Manufacturer Part Number
PIC16LF1827-I/SO
Description
IC MCU 8BIT 4KB FLASH 18SOIC
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Specifications of PIC16LF1827-I/SO
Program Memory Type
FLASH
Program Memory Size
7KB (4K x 14)
Package / Case
18-SOIC (7.5mm Width)
Core Processor
PIC
Core Size
8-Bit
Speed
32MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Eeprom Size
256 x 8
Ram Size
384 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC16LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
384 B
Interface Type
I2C/SPI/UART
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
15
Number Of Timers
5
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005
Minimum Operating Temperature
- 40 C
On-chip Adc
12-ch x 10-bit
On-chip Dac
5 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
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12.3
PORTB is an 8-bit wide, bidirectional port. The
corresponding
(Register 12-9). Setting a TRISB bit (= 1) will make the
corresponding PORTB pin an input (i.e., put the
corresponding output driver in a High-Impedance mode).
Clearing a TRISB bit (= 0) will make the corresponding
PORTB pin an output (i.e., enable the output driver and
put the contents of the output latch on the selected pin).
Example 12-2 shows how to initialize PORTB.
Reading the PORTB register (Register 12-8) reads the
status of the pins, whereas writing to it will write to the
PORT latch. All write operations are read-modify-write
operations. Therefore, a write to a port implies that the
port pins are read, this value is modified and then written
to the PORT data latch.
The TRISB register (Register 12-9) controls the PORTB
pin output drivers, even when they are being used as
analog inputs. The user should ensure the bits in the
TRISB register are maintained set when using them as
analog inputs. I/O pins configured as analog input always
read ‘0’. Example 12-2 shows how to initialize PORTB.
EXAMPLE 12-2:
© 2009 Microchip Technology Inc.
BANKSEL PORTB
CLRF
BANKSEL ANSELB
CLRF
BANKSEL TRISB
MOVLW
MOVWF
Note:
PORTB and TRISB Registers
PORTB
ANSELB
B’11110000’ ;Set RB<7:4> as inputs
TRISB
The ANSELB register must be initialized to
configure an analog channel as a digital
input. Pins configured as analog inputs will
read ‘0’.
data
INITIALIZING PORTB
direction
;
;Init PORTB
;Make RB<7:0> digital
;
;and RB<3:0> as outputs
;
register
is
TRISB
Preliminary
12.3.1
Each of the PORTB pins has an individually configurable
internal weak pull-up. Control bits WPUB<7:0> enable or
disable each pull-up (see Register 12-11). Each weak
pull-up is automatically turned off when the port pin is
configured as an output. All pull-ups are disabled on a
Power-on Reset by the WPUEN bit of the OPTION
register.
12.3.2
All of the PORTB pins are individually configurable as
an interrupt-on-change pin. Control bits IOCB<7:0>
enable or disable the interrupt function for each pin.
The interrupt-on-change feature is disabled on a
Power-on
“Interrupt-On-Change” for more information.
PIC16F/LF1826/27
WEAK PULL-UPS
INTERRUPT-ON-CHANGE
Reset.
Reference
DS41391B-page 125
Section 13.0
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