PIC16F77-E/PT Microchip Technology, PIC16F77-E/PT Datasheet - Page 153
![IC MCU FLASH 8KX14 A/D 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC16F77-E/PT
Manufacturer Part Number
PIC16F77-E/PT
Description
IC MCU FLASH 8KX14 A/D 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F818-ISO.pdf
(6 pages)
4.PIC16F73-ISP.pdf
(174 pages)
5.PIC16F73-ISP.pdf
(14 pages)
6.PIC16F73-ISP.pdf
(12 pages)
Specifications of PIC16F77-E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
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
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
PIC16F77E/PT
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F818-ISO PDF datasheet #3
- PIC16F73-ISP PDF datasheet #4
- PIC16F73-ISP PDF datasheet #5
- PIC16F73-ISP PDF datasheet #6
- Current page: 153 of 688
- Download datasheet (3Mb)
9.9
1997 Microchip Technology Inc.
GPIO and the TRISGP Register
GPIO is an 8-bit I/O register. Only the low order six bits are implemented (GP5:GP0). Bits 7 and
6 are unimplemented and read as ‘0’s. Any GPIO pin (except GP3) can be programmed
individually as input or output. The GP3 pin is an input only pin.
The TRISGP register controls the data direction for GPIO pins. A ‘1’ in a TRISGP register bit
puts the corresponding output driver in a hi-impedance mode. A ‘0’ puts the contents of the
output data latch on the selected pins, enabling the output buffer. The exceptions are GP3 which
is input only and its TRIS bit will always read as '1'. Upon reset, the TRISGP register is all ‘1’s,
making all pins inputs.
A read of the GPIO port, reads the pins not the output data latches. Any input must be present
until read by an input instruction (e.g., MOVF GPIO,W). The outputs are latched and remain
unchanged until the output latch is rewritten.
Example 9-8: Initializing GPIO
Figure 9-11: Block Diagram of GP5:GP0 Pins
The configuration word can set several I/O’s to alternate functions. When acting as alternate
functions the pins will read as ‘0’ during port read. The GP0, GP1, and GP3 pins can be config-
ured with weak pull-ups and also with interrupt on change. The interrupt on change and weak
pull-up functions are not pin selectable. Interrupt on change is enabled by setting INTCON<3>.
If the device configuration bits select one of the external oscillator modes, the GP4 and GP5 pin’s
GPIO functions are overridden and these pins are used for the oscillator.
CLRF
CLRF
BSF
MOVLW
MOVWF
Note 1: I/O pins have protection diodes to V
GP3 is input only with no data latch and no output drivers.
STATUS
GPIO
STATUS, RP0
0xCF
TRISGP
Data
Bus
WR
Port
W
Reg
TRIS ‘f’
; Bank0
; Initialize GPIO by clearing output
;
; Select Bank1
; Value used to initialize data direction
; GP<3:0> = inputs GP<5:4> = outputs
;
D
D
CK
CK
Reset
TRIS
Latch
Data
Latch
data latches
TRISGP<7:6> always read as '0'
Q
Q
Q
Q
RD Port
Section 9. I/O Ports
DD
and V
SS
.
V
V
P
N
SS
DD
I/O
pin
(1)
DS31009A-page 9-13
9
Related parts for PIC16F77-E/PT
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![PIC16F77-I/PT](/photos/6/82/68251/c04-076_pt_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX14 A/D 44TQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F77-I/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX14 A/D 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F77-I/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX14 A/D 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F77-I/PG](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX14 W/AD 40DIP
Manufacturer:
Microchip Technology
![PIC16F77-E/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX14 A/D 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F77-I/PTG](/photos/6/82/68251/c04-076_pt_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX14 44TQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F77-E/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX14 A/D 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F77-I/LG](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX14 W/AD 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F77-E/ML](/photos/6/81/68122/150-44-qfn_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX14 A/D 44QFN
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F77-I/ML](/photos/6/81/68122/150-44-qfn_tmb.jpg)
Part Number:
Description:
44 PIN, 14KB STD FLASH, 368 RAM, 33 I/O,
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F1507-E/ML](/photos/16/3/160361/qfn20_tmb.jpg)
Part Number:
Description:
3.5KB Flash, 128B RAM, 18 I/O, CLC, CWG, DDS, 10-bit ADC 20 QFN 4x4mm TUBE
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F1507-E/P](/photos/16/12/161290/pdip20_tmb.jpg)
Part Number:
Description:
3.5KB Flash, 128B RAM, 18 I/O, CLC, CWG, DDS, 10-bit ADC 20 PDIP .300in TUBE
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F1507-E/SO](/photos/16/12/161297/soic20_tmb.jpg)
Part Number:
Description:
3.5KB Flash, 128B RAM, 18 I/O, CLC, CWG, DDS, 10-bit ADC 20 SOIC .300in TUBE
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F1507-E/SS](/photos/16/12/161299/ssop20_tmb.jpg)
Part Number:
Description:
3.5KB Flash, 128B RAM, 18 I/O, CLC, CWG, DDS, 10-bit ADC 20 SSOP .209in TUBE
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F1507-I/ML](/photos/16/3/160361/qfn20_tmb.jpg)
Part Number:
Description:
3.5KB Flash, 128B RAM, 18 I/O, CLC, CWG, DDS, 10-bit ADC 20 QFN 4x4mm TUBE
Manufacturer:
Microchip Technology
Datasheet: