PIC16LF737-I/ML Microchip Technology, PIC16LF737-I/ML Datasheet - Page 51
![IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,28PIN,PLASTIC](/photos/6/81/68120/150-28-qfn_sml.jpg)
PIC16LF737-I/ML
Manufacturer Part Number
PIC16LF737-I/ML
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,28PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Specifications of PIC16LF737-I/ML
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
7KB (4K x 14)
Program Memory Type
FLASH
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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5.0
Some pins for these I/O ports are multiplexed with an
alternate function for the peripheral features on the
device. In general, when a peripheral is enabled, that
pin may not be used as a general purpose I/O pin.
Additional information on I/O ports may be found in the
“PICmicro
Manual” (DS33023).
5.1
PORTA is a 8-bit wide, bidirectional port. The corre-
sponding data direction register is TRISA. Setting a
TRISA bit (= 1) will make the corresponding PORTA pin
an input (i.e., put the corresponding output driver in a
high-impedance mode). Clearing a TRISA bit (= 0) will
make the corresponding PORTA pin an output (i.e., put
the contents of the output latch on the selected pin).
Reading the PORTA register reads the status of the
pins, whereas writing to it, will write to the port latch.
The RA4 pin is multiplexed with the Timer0 module
clock input and one of the comparator outputs to
become the RA4/T0CKI/C1OUT pin. Pins RA6 and
RA7 are multiplexed with the main oscillator pins; they
are enabled as oscillator or I/O pins by the selection of
the main oscillator in Configuration Register 1H (see
Section 15.1 “Configuration Bits” for details). When
they are not used as port pins, RA6 and RA7 and their
associated TRIS and LAT bits are read as ‘0’.
2004 Microchip Technology Inc.
I/O PORTS
PORTA and the TRISA Register
®
Mid-Range
MCU
Family
Reference
The other PORTA pins are multiplexed with analog
inputs, the analog V
comparator voltage reference output. The operation of
pins RA3:RA0 and RA5 as A/D converter inputs is
selected by clearing/setting the control bits in the
ADCON1 register (A/D Control Register 1). Pins RA0
through RA5 may also be used as comparator inputs or
outputs by setting the appropriate bits in the CMCON
register.
The RA4/T0CKI/C1OUT pin is a Schmitt Trigger input
and an open-drain output. All other PORTA pins have
TTL input levels and full CMOS output drivers.
The TRISA register controls the direction of the RA pins
even when they are being used as analog inputs. The
user must ensure the bits in the TRISA register are
maintained set when using them as analog inputs.
EXAMPLE 5-1:
BCF
BCF
CLRF
BSF
MOVLW
MOVWF
MOVLW
MOVWF
Note:
STATUS, RP0
STATUS, RP1
PORTA
STATUS, RP0
0x0F
ADCON1
0xCF
TRISA
On a Power-on Reset, RA5 and RA3:RA0
are configured as analog inputs and read
as ‘0’. RA4 is configured as a digital input.
REF
INITIALIZING PORTA
+ and V
PIC16F7X7
;
; Bank0
; Initialize PORTA by
; clearing output
; data latches
; Select Bank 1
; Configure all pins
; as digital inputs
; Value used to
; initialize data
; direction
; Set RA<3:0> as inputs
; RA<5:4> as outputs
; TRISA<7:6>are always
; read as '0'.
REF
DS30498C-page 49
- inputs and the
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