PIC16C716-20I/SO Microchip Technology, PIC16C716-20I/SO Datasheet - Page 26

• Manufacturer Part Number: PIC16C716-20I/SO
• Description: IC MCU OTP 2KX14 A/D PWM 18SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C716-20I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 13
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 18-SOIC (7.5mm Width)
• For Use With: XLT18SO-1 - SOCKET TRANSITION 18SOIC 300MILISPICR1 - ADAPTER IN-CIRCUIT PROGRAMMING309-1011 - ADAPTER 18-SOIC TO 18-DIP309-1010 - ADAPTER 18-SOIC TO 18-DIPAC164010 - MODULE SKT PROMATEII DIP/SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -

PIC16C712/716
3.2
PORTB is an 8-bit wide bidirectional port. The corre-
sponding data direction register is TRISB. 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., put the contents of the output latch on the selected
pin).
EXAMPLE 3-2:
FIGURE 3-3:
DS41106B-page 24
BCF
CLRF
BSF
MOVLW
MOVWF
PORTB and the TRISB Register
Note 1:
STATUS, RP0
PORTB
STATUS, RP0
0xCF
TRISB
To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit (OPTION_REG<7>).
DATA BUS
WR TRIS
INITIALIZING PORTB
BLOCK DIAGRAM OF RB0 PIN
WR PORT
RBPU
RB0/INT
;
; Initialize PORTB by
; clearing output
; data latches
; Select Bank 1
; Value used to
; initialize data
; direction
; Set RB<3:0> as inputs
; RB<5:4> as outputs
; RB<7:6> as inputs
(1)
RD TRIS
RD PORT
TRIS Latch
Data Latch
D
D
CK
CK
Schmitt Trigger
Buffer
Q
Q
Q
EN
TTL
Input
Buffer
D
Each of the PORTB pins has a weak internal pull-up. A
single control bit can turn on all the pull-ups. This is per-
formed by clearing bit RBPU (OPTION_REG<7>). The
weak pull-up is automatically turned off when the port
pin is configured as an output. The pull-ups are
disabled on a Power-on Reset.
V
P
RD PORT
DD
weak
pull-up
V
SS
V
DD
I/O
pin
© 2005 Microchip Technology Inc.