PIC16F77T-I/PTG - 8-Bit 20MHz MCU 14KB Flash 44-TQFP | Microchip
Référence : PIC16F77T-I/PTG ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.1 | $7,10 |
| 10 | $6.42 | $64,20 |
| 100 | $5.74 | $574,00 |
| 500 | $5.18 | $2 590,00 |
| 1 000 | $4.61 | $4 610,00 |
PIC16F77T-I/PTG Présentation
What is a PIC16F 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus, integrating a CPU, memory, and peripherals. The PIC16F series sits in Microchip's mid-range PIC architecture hierarchy (PIC10/12/18 -> PIC16F mid-range -> PIC24/dsPIC), designed for low-power, deterministic embedded control with a small instruction set optimized for C and assembly programming.
Key features include 14KB self-programmable Flash, 368 bytes RAM, 8 channels of 8-bit Analog-to-Digital (A/D) converter, 2 additional timers, and a 200ns instruction execution time. The TQFP-44 footprint provides a generous 33 I/O pins for parallel interfaces, making it well-suited for human-machine interface (HMI) panels and motor-control feedback networks.
The PIC16F77T-I/PTG uses Microchip's enhanced Harvard RISC architecture with only 35 single-word instructions, providing deterministic 5 MIPS performance at 20MHz. The integrated 8-channel 8-bit ADC, PWM modules, and USART enable direct sensor interfacing without external glue logic, simplifying BOM and reducing PCB area.
Typical applications include industrial automation controllers, embedded display drivers, sensor signal processors, and HVAC control units. The wide operating voltage range (2.0V to 5.5V) and -40°C to +85°C industrial temperature grade support reliable operation in harsh environments.
When designing with this device, ensure decoupling capacitors (100nF) are placed within 5mm of VDD pins. The PIC16F77T suffix indicates tape-and-reel packaging and industrial operating range (-40°C to +85°C), distinguishing it from non-T PIC16F77 versions.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate the PIC16F77T-I/PTG against modern PIC16F and PIC18F successors.
Alternatives de remplacement direct pour PIC16F77T-I/PTG — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC16F77T-I/PTG (même facteur de forme et même empreinte) — différant par Operating Temperature, Package, Core Architecture, ADC, Program Memory.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC16F77T-I/PT
✅ Remplacement direct✓ En stock
$6.25 / unité
Voir la fiche technique →PIC16F777T-I/PT
✅ Remplacement direct✓ En stock
$4.65 / unité
Voir la fiche technique →PIC16F747T-I/PT
✅ Remplacement direct✓ En stock
$2.1 / unité
Voir la fiche technique →PIC16F74T-I/PT
✅ Remplacement direct✓ En stock
$5.21 / unité
Voir la fiche technique →PIC16F877A-I/PT
✅ Remplacement direct✓ En stock
$4.95 / unité
Voir la fiche technique →PIC16F77T-I/PTG Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC16F (8-bit RISC) |
| CPU Speed | 20 MHz (5 MIPS) |
| Instruction Execution | 200 ns |
| Program Memory | 14 KB Flash (8K x 14) |
| RAM | 368 bytes |
| I/O Pins | 33 |
| ADC | 8 channels, 8-bit |
| Boîtier | 44-TQFP (PT) 10x10 mm |
| Operating Voltage | 2.0 V to 5.5 V |
| Température de fonctionnement | -40 °C to +85 °C (Industrial) |
| Timer Modules | 3 (Timer0, Timer1, Timer2) |
| PWM | Yes (2 channels) |
| USART | Yes (1 channel) |
| Type de montage | Surface Mount |
Configuration des broches de PIC16F77T-I/PTG
| Broche 1 | OSC1/CLKIN — Oscillator input / external clock input |
| Broche 2 | OSC2/CLKOUT — Oscillator output / clock output |
| Broche 3 | MCLR/VPP — Master clear reset / programming voltage input |
| Broche 4 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Broche 5 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Broche 6 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Broche 7 | RA3/AN3/VREF — PORTA bit 3 / analog input 3 / voltage reference |
| Broche 8 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Broche 9 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Broche 10 | VSS — Ground reference |
| Broche 11 | VDD — Positive supply voltage |
| Broche 12 | RB0/INT — PORTB bit 0 / external interrupt |
| Broche 13 | RB1 — PORTB bit 1 |
| Broche 14 | RB2 — PORTB bit 2 |
| Broche 15 | RB3/PGM — PORTB bit 3 / low-voltage programming |
| Broche 16 | RB4 — PORTB bit 4 |
| Broche 17 | RB5 — PORTB bit 5 |
| Broche 18 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Broche 19 | RB7/PGD — PORTB bit 7 / ICSP data |
| Broche 20 | VSS — Ground reference |
| Broche 21 | VDD — Positive supply voltage |
| Broche 22 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / Timer1 clock |
| Broche 23 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| Broche 24 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| Broche 25 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Broche 26 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Broche 27 | RC5/SDO — PORTC bit 5 / SPI data out |
| Broche 28 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| Broche 29 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| Broche 30 | VSS — Ground reference |
| Broche 31 | VDD — Positive supply voltage |
| Broche 32 | RD0 — PORTD bit 0 |
| Broche 33 | RD1 — PORTD bit 1 |
| Broche 34 | RD2 — PORTD bit 2 |
| Broche 35 | RD3 — PORTD bit 3 |
| Broche 36 | RD4 — PORTD bit 4 |
| Broche 37 | RD5 — PORTD bit 5 |
| Broche 38 | RD6 — PORTD bit 6 |
| Broche 39 | RD7 — PORTD bit 7 |
| Broche 40 | VSS — Ground reference |
| Broche 41 | VDD — Positive supply voltage |
| Broche 42 | RE0/RD/AN5 — PORTE bit 0 / read control / analog input 5 |
| Broche 43 | RE1/WR/AN6 — PORTE bit 1 / write control / analog input 6 |
| Broche 44 | RE2/CS/AN7 — PORTE bit 2 / chip select / analog input 7 |
Applications typiques
PIC16F77T-I/PTG convient pour 6 applications: Industrial Automation Controllers, Embedded Display Driver Boards, Sensor Signal Processing Hubs, HVAC Control Units, Motor Control Feedback Boards, Educational and Hobbyist Development.
Industrial Automation Controllers
The PIC16F77T-I/PTG is well-suited for industrial automation controllers, where its 14KB Flash and 368 bytes RAM provide enough headroom for state-machine logic, sensor fusion routines, and Modbus ASCII/RTU protocols. Its 8-channel 8-bit ADC directly interfaces with temperature, pressure, and flow sensors commonly found in PLC expansion modules, while 33 I/O pins drive relay coils, optocouplers, and indicator LEDs without external glue logic. The -40°C to +85°C industrial temperature rating and 2.0V to 5.5V supply range support factory-floor equipment where 24V-isolated rails step down to 5V or 3.3V. Pairing this MCU with a PIC16F777T-I/PT upgrade path allows 10-bit ADC precision for tighter process-control loops.
Recommandé
Embedded Display Driver Boards
The PIC16F77T-I/PTG can drive character LCDs and small graphic OLED displays as a dedicated display controller, off-loading refresh tasks from a host processor. Its 33 I/O pins multiplex easily into 8-bit data bus plus 6 control lines for HD44780-based LCDs, leaving spare pins for keypad scanning and backlight PWM control. The 8-bit ADC can read ambient light sensors for automatic brightness adjustment. Operating from 2.0V to 5.5V allows direct connection to 3.3V OLED panels without level shifters. The 44-TQFP package keeps the PCB compact for behind-panel mounting where space is at a premium.
Recommandé
Sensor Signal Processing Hubs
The PIC16F77T-I/PTG acts as a sensor hub that aggregates analog and digital sensor data before forwarding it via USART to a higher-level controller. Its 8-channel 8-bit ADC simultaneously reads multiple sensor inputs such as thermistors, photocells, and potentiometers for environmental monitoring. The PWM channels drive actuator control loops for proportional valves or fan speed control based on sensor feedback. The 14KB Flash supports lookup tables for sensor linearization and calibration constants. Engineers can leverage the PIC16F747T-I/PT alternative where 7KB Flash is sufficient, reducing per-unit cost without PCB rework.
Recommandé
HVAC Control Units
The PIC16F77T-I/PTG fits HVAC control units for residential thermostats and small commercial zoning systems, where its industrial temperature range handles attic and outdoor enclosures. The 8-channel ADC monitors return-air temperature, supply-air temperature, humidity sensors, and pressure switches, while PWM outputs modulate damper servo motors and fan speeds. The 14KB Flash stores schedule logic, setpoint curves, and EEPROM-backed user settings. The wide 2.0V-5.5V supply simplifies battery-backed RTC designs and supports both 24V AC-derived and 5V DC-powered thermostat variants.
Recommandé
Motor Control Feedback Boards
The PIC16F77T-I/PTG can be deployed as a dedicated feedback processor in brushed-DC or stepper motor control boards, handling encoder counting, current sensing, and PWM generation. Its 8-bit ADC reads shunt-resistor current feedback while the integrated PWM module drives H-bridge gate drivers. The 33 I/O pins support quadrature encoder inputs, limit switches, and fault indicators. Pairing the MCU with a discrete MOSFET bridge keeps the BOM cost low while leveraging the MCU's 5 MIPS throughput for closed-loop PID computation.
Recommandé
Educational and Hobbyist Development
The PIC16F77T-I/PTG is popular in educational labs and hobbyist projects due to its 35-instruction RISC architecture and abundant I/O. The 14KB program space accommodates full C-language applications with libraries, while 368 bytes RAM handles reasonable buffers for serial I/O and ADC averaging. The 44-TQFP package breaks out enough pins for breadboard adapter boards and Arduino-shield-style peripherals. The PIC's long-established toolchain (MPLAB X IDE, XC8 compiler, PICKit programmers) reduces learning curve, and the -40°C to +85°C industrial rating lets student prototypes field range from classroom to outdoor field testing.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16F77T-I/PTG — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC16F77T-I/PT | PIC16F777T-I/PT | PIC16F747T-I/PT | PIC16F74T-I/PT | PIC16F877A-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (PT) 10x10 mm | 44-TQFP (PT) 10x10 mm - same | 44-TQFP (PT) 10x10 mm - same | 44-TQFP (PT) 10x10 mm - same | 44-TQFP (PT) 10x10 mm - same | 44-TQFP (PT) 10x10 mm - same |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 7 KB | 7 KB | 14 KB |
| RAM | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 192 bytes | 368 bytes |
| ADC Resolution | 8-bit | 8-bit | 10-bit | 10-bit | 8-bit | 10-bit |
| ADC Channels | 8 | 8 | 8 | 8 | 8 | 8 |
| CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
Principaux différenciateurs
- 14KB Flash vs 7KB on the lower-cost PIC16F74T-I/PT sibling (vs PIC16F74T-I/PT)
- 368 bytes RAM vs 192 bytes on PIC16F74T-I/PT (vs PIC16F74T-I/PT)
- 8-bit ADC vs 10-bit on PIC16F777T-I/PT upgrade (vs PIC16F777T-I/PT)
Notes de conception
Place a 100nF decoupling capacitor within 5mm of each VDD pin (pins 11, 21, 31, 41) and a single 10uF bulk capacitor at the board power entry. The PIC16F77T-I/PTG has multiple VDD pins to reduce digital switching noise injection into the analog reference; bypassing each pin individually prevents ADC reference drift. For battery-powered designs, leverage the BOR (Brown-Out Reset) module set to 2.0V threshold to prevent code corruption during supply collapse.
The 44-TQFP package has 0.8mm pin pitch and requires careful PCB layout to avoid solder bridging. Use NSMD (Non-Solder Mask Defined) pads with a 1:1.5 pad-to-pad ratio for reliable reflow. Route analog signals (AN4-AN7 on PORTE) on an inner layer with ground guarding to prevent digital crosstalk into ADC readings. Keep the 20MHz crystal traces short and surround them with a ground ring for EMI suppression.
Do not leave the MCLR/VPP pin floating; tie it to VDD through a 10kΩ pull-up resistor with a 100nF capacitor to VDD for noise filtering. Failing to do so causes spurious resets in electrically noisy environments such as motor-drive boards. Also ensure the OSC1/OSC2 pins use a properly loaded crystal or resonator when running above 4MHz; the internal 4MHz RC is only rated to +/- 2% and is unsuitable for UART timing-critical applications.
Informations de conformité
RoHS compliant and lead-free per PTG suffix (Pb-free matte-tin). Industrial -40°C to +85°C operating range. Not AEC-Q100 qualified (this is a non-automotive MCU).