PIC16F877T-04/PT Microchip Technology, PIC16F877T-04/PT Datasheet - Page 146
![IC MCU FLASH 8KX14 EE 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC16F877T-04/PT
Manufacturer Part Number
PIC16F877T-04/PT
Description
IC MCU FLASH 8KX14 EE 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16C770-ISO.pdf
(8 pages)
4.PIC16F873-04SO.pdf
(218 pages)
5.PIC16F873-04SO.pdf
(5 pages)
6.PIC16F873-04SO.pdf
(5 pages)
Specifications of PIC16F877T-04/PT
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
14KB (8K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F877T-04/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16C770-ISO PDF datasheet #3
- PIC16F873-04SO PDF datasheet #4
- PIC16F873-04SO PDF datasheet #5
- PIC16F873-04SO PDF datasheet #6
- Current page: 146 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
9.3
DS31009A-page 9-6
PORTB and the TRISB Register
PORTB is an 8-bit wide bi-directional port. The corresponding data direction register is TRISB.
Setting a bit in the TRISB register puts the corresponding output driver in a high-impedance input
mode. Clearing a bit in the TRISB register puts the contents of the output latch on the selected
pin(s).
Example 9-2:
Each of the PORTB pins has a weak internal pull-up. A single control bit can turn on all the
pull-ups. This is performed by clearing bit RBPU (OPTION<7>). The weak pull-up is automati-
cally turned off when the port pin is configured as an output. The pull-ups are disabled on a
Power-on Reset.
Figure 9-4: Block Diagram of RB3:RB0 Pins
CLRF
CLRF
BSF
MOVLW
MOVWF
Note 1: I/O pins have diode protection to V
STATUS
PORTB
STATUS, RP0
0xCF
TRISB
Initializing PORTB
2: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear
the RBPU bit (OPTION<7>).
Data bus
WR TRIS
WR Port
To Peripheral Module
RBPU
(2)
; Bank0
; Initialize PORTB by clearing output
;
; Select Bank1
; Value used to initialize data direction
; PORTB<3:0> = inputs, PORTB<5:4> = outputs
;
data latches
PORTB<7:6> = inputs
RD TRIS
RD Port
TRIS Latch
Data Latch
D
D
CK
CK
Schmitt Trigger
Buffer
DD
Q
Q
and V
SS
.
Q
1997 Microchip Technology Inc.
EN
TTL
Input
Buffer
D
V
P
RD Port
DD
weak
pull-up
I/O
pin
(1)
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