PIC16F1776T-I/SO - 8-Bit 32MHz 14KB Flash MCU | Microchip
MPN: PIC16F1776T-I/SO ✓ Hoạt độngPIC16F1776T-I/SO Tóm tắt
A PIC microcontroller (Programmable Interface Controller) is a Harvard-architecture RISC processor widely used in embedded designs for lighting, power conversion, motor control, and general-purpose I/O. The PIC16F1776 sits within the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The 'XLP' designation indicates ultra-low-power operation, with sleep currents often below 100 nA, making this part suited to battery-powered applications.
Key features of the PIC16F1776 include a 32MHz maximum CPU clock, 14KB Flash, up to 1024 bytes RAM, integrated op-amps, 10-bit ADC with computation, multiple 16-bit PWMs, complementary waveform generators, and a wide operating voltage range. The device provides configurable logic cells, slope compensation for power supply designs, and high-current I/O capable of directly driving LEDs and FETs.
The architecture combines a 49-instruction RISC core with peripheral pin select (PPS) for flexible pin mapping, allowing engineers to remap digital peripherals to multiple I/O pins. With its high level of analog/digital integration, the PIC16F1776 consolidates what would otherwise require several external components in lighting, battery charger, and motor drive designs.
Typical applications include LED lighting control, switched-mode power supply (SMPS) controllers, battery charging systems, DC-DC converters, motor control, and general-purpose embedded control. The 28-SOIC package is a widely supported surface-mount format suitable for hand-soldering and reflow assembly.
When designing, note that the 'T' suffix indicates tape-and-reel packaging for high-volume assembly, and the 'I' denotes the industrial temperature grade of -40C to +85C. PPS configuration must be locked in firmware before any peripheral pin change takes hold.
This page synthesizes distributor pricing, drop-in alternatives from the PIC16F177x family, and practical design notes for SMPS and LED control applications not all collated on the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1776T-I/SO — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16F1776T-I/SO (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, DAC, Operating Temperature.
PIC16F1776-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1776-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F1773-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1769-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1768-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F1709-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F1776T-I/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC (enhanced mid-range) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data Memory (RAM) | 1 KB (1024 bytes) |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| Hộp | 28-SOIC (0.295", 7.50mm width) |
| ADC | 10-bit, multi-channel |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| Packaging | Tape & Reel (T) |
| Family | PIC16F177x XLP |
Cấu hình chân PIC16F1776T-I/SO
| Chân 1 | RA1/AN1/OPA1IN0+ — Analog input / op-amp input / GPIO |
| Chân 2 | RA2/AN2/OPA1OUT — Analog / op-amp output / GPIO |
| Chân 3 | RA3/AN3/OPA1IN1- — Analog / op-amp inverting input / GPIO |
| Chân 4 | RA4/AN4/OPA2IN3+ — Analog / GPIO / op-amp input |
| Chân 5 | RA5/AN5/OPA2OUT — Analog / op-amp output / GPIO |
| Chân 6 | VSS — Ground reference |
| Chân 7 | OSC1/RA7 — Crystal oscillator input / GPIO |
| Chân 8 | OSC2/RA6 — Crystal oscillator output / GPIO |
| Chân 9 | RC0 — GPIO / digital peripheral |
| Chân 10 | RC1 — GPIO / digital peripheral |
| Chân 11 | RC2 — GPIO / digital peripheral |
| Chân 12 | RC3 — GPIO / digital peripheral |
| Chân 13 | RC4 — GPIO / digital peripheral |
| Chân 14 | RC5 — GPIO / digital peripheral |
| Chân 15 | RC6 — GPIO / digital peripheral |
| Chân 16 | RC7 — GPIO / digital peripheral |
| Chân 17 | RB0 — GPIO / digital peripheral / interrupt |
| Chân 18 | RB1 — GPIO / digital peripheral / interrupt |
| Chân 19 | RB2 — GPIO / digital peripheral / interrupt |
| Chân 20 | RB3 — GPIO / digital peripheral / interrupt |
| Chân 21 | RB4 — GPIO / digital peripheral / interrupt |
| Chân 22 | RB5 — GPIO / digital peripheral / interrupt |
| Chân 23 | RB6/ICSPCLK — GPIO / ICSP clock |
| Chân 24 | RB7/ICSPDAT — GPIO / ICSP data |
| Chân 25 | VDD — Positive supply (2.3V-5.5V) |
| Chân 26 | AVDD — Analog positive supply |
| Chân 27 | AVSS — Analog ground |
| Chân 28 | MCLR/VPP/RE3 — Master clear / programming voltage / GPIO |
Ứng dụng tiêu biểu
PIC16F1776T-I/SO phù hợp cho 6 Áp dụngs: LED Lighting Control, Switched-Mode Power Supply (SMPS), Battery Charging Management, DC-DC Converter Control, Motor Control (BLDC, Stepper), General-Purpose Embedded Control.
LED Lighting Control
The PIC16F1776's 16-bit PWM with complementary waveform generator and 10-bit ADCC make it ideal for LED lighting drivers requiring dimming and color-mixing. The integrated slope-compensation hardware simplifies constant-current buck/boost LED topology. With 14KB Flash it supports DMX, DALI, or proprietary lighting protocols. Operating from 2.3V-5.5V, the device suits battery-powered fixtures; XLP sleep below 100 nA preserves standby battery. In a 50W RGBW fixture, the part directly drives four 16-bit PWM channels and samples feedback current via ADCC for closed-loop regulation.
Được đề xuất
Switched-Mode Power Supply (SMPS)
The PIC16F1776 is purpose-built for SMPS controllers with built-in slope compensation, peak current mode control, and high-resolution 16-bit PWM. It can implement peak current mode buck, boost, SEPIC, and flyback topologies without external analog ICs. The integrated op-amps close the current feedback loop, and ADCC performs fast cycle-by-cycle current sensing. 32MHz CPU allows real-time control loops up to ~250kHz switching frequency. In a 24V-to-5V/2A isolated flyback, the PIC16F1776 replaces a dedicated SMPS controller plus MCU combination.
Được đề xuất
Battery Charging Management
For Li-ion, lead-acid, or NiMH battery chargers, the PIC16F1776 combines ADCC for current/voltage sense with 16-bit PWM for charge profile control. The integrated op-amps build constant-current/constant-voltage loops, while Configurable Logic Cells (CLC) implement hardware safety interlocks. XLP low-power modes support sleep-and-wake chargers with months of standby. The 14KB Flash accommodates CC-CV profiles, temperature compensation, and SMBus/I2C host interface. In a multi-cell Li-ion charger, it terminates on -dV/dt or timer, with 0.5% voltage accuracy from the 10-bit ADCC.
Được đề xuất
DC-DC Converter Control
Synchronous and asynchronous DC-DC converter designs benefit from the PIC16F1776's high-speed PWM and on-chip op-amps that sense inductor current. The device's configurable logic cells enable hardware-driven synchronous rectification timing, and CLC can implement programmable dead-time control. The 32MHz core supports 4th-order digital compensators. With wide VDD range (2.3V-5.5V), the same firmware runs on 3.3V and 5V buses. For a 60W synchronous buck at 500kHz switching, the part performs digital voltage positioning and adaptive voltage scaling.
Được đề xuất
Motor Control (BLDC, Stepper)
PIC16F1776's six 16-bit PWM outputs natively drive three-phase BLDC bridges with complementary switching and dead-band control. The on-chip op-amps condition back-EMF signals from the motor windings, while CLC implements hardware commutation triggers. 32MHz CPU runs sensorless FOC algorithms at reasonable rates. 14KB Flash stores tuning tables and fault-handling. The 28-SOIC footprint suits compact motor-driver PCBs for fans, pumps, and small appliances. In a 24V BLDC fan, the part performs closed-loop RPM control with stall detection.
Được đề xuất
General-Purpose Embedded Control
Beyond power and lighting, the PIC16F1776 functions as a flexible general-purpose MCU for industrial sensor interfaces, IoT edge nodes, and human-machine interfaces. Its 25 I/O pins, PPS configurability, and 32MHz speed fit sensor aggregation, keypad scanning, and UART/SPI/I2C bridging. XLP modes support coin-cell applications with years of battery life. The 14KB Flash and 1KB RAM are sufficient for small RTOS or state-machine designs. In a process-control module, the part aggregates thermocouples, drives relays, and reports via Modbus over UART.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1776T-I/SO — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16F1776-I/SO | PIC16F1773-I/SO | PIC16F1769-I/SO |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (0.295") | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Flash Memory | 14 KB | 14 KB | 7 KB | 8 KB |
| RAM | 1 KB | 1 KB | 512 bytes | 1 KB |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V |
| ADC | 10-bit ADCC | 10-bit ADCC | 10-bit ADCC | 10-bit ADC |
| Integrated Op-Amps | Yes (multiple) | Yes (multiple) | Yes (reduced) | Limited |
| 16-bit PWM | Yes | Yes | Yes | Yes |
| Approx. Unit Price (1pc) | $2.85 | $2.85 | $2.20 | $2.40 |
Bảo phân biệt quan trọng
- Highest Flash in PIC16F177x SOIC family (vsPIC16F1773-I/SO)
- Integrated op-amps and slope compensation (vsPIC16F1769-I/SO)
- XLP ultra-low-power sleep modes (vsPIC16F1709-I/SO)
Ghi chú thiết kế
Place a 0.1uF ceramic bypass capacitor as close as possible to VDD pin (pin 25) and a 10uF bulk capacitor on AVdd (pin 26). Use separate analog and digital ground planes joined at a single point near AVss (pin 27). Keep crystal traces short and surrounded by ground. Pin 1 indicator: dot at top-left of 28-SOIC. PPS remapping must be configured before peripherals can use non-default pins; lock PPS in firmware before critical functions.
At maximum 32MHz and 5.5V, the PIC16F1776T-I/SO dissipates under 50mW. Estimated: theta_JA for 28-SOIC is ~70 C/W in still air. At 85C industrial temperature max and 50mW dissipation, junction rises ~3.5C above ambient - well within the 150C TJ max. No heatsink required; standard copper pour is sufficient.
Do not leave ICSPDAT/ICSPCLK (RB6/RB7) floating in production - add 10k pull-ups. Ensure MCLR (pin 28) has a 10k pull-up to VDD; the in-circuit serial programming requires proper MCLR rise time. Avoid driving op-amp outputs beyond the rail - the integrated op-amps have rail-to-rail outputs but limited output current. When using ADCC in burst-averaging mode, allow acquisition time before triggering.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Lead-free (Pb-free) packaging. Not AEC-Q100 qualified - PIC16F1776T-I/SO targets industrial and consumer markets.
