PIC16F1776-I/SO - 8-Bit 32MHz MCU 14KB Flash 28-SOIC | Microchip
MPN: PIC16F1776-I/SO ✓ Hoạt độngPIC16F1776-I/SO Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals. Within the broader semiconductor taxonomy, an MCU belongs to the integrated circuit > microcontroller family > 8-bit microcontroller sub-family. The PIC16F1776 specifically targets highly integrated, low-wattage power conversion and intelligent analog applications, providing on-chip peripherals such as 10-bit ADC, 10-bit DAC, operational amplifiers, comparators, zero-cross detect, and configurable 10/16-bit PWMs.
Key features include 14 KB Flash, 1 KB RAM, 32 MHz CPU speed, high-current 100 mA I/O drivers, peripheral pin select (PPS), SPI/I2C, and EUSART communication interfaces. The on-chip intelligent analog peripherals reduce external component count and BOM cost in lighting, power supply, battery charging, and motor control designs.
The PIC16F1776 uses a Harvard-architecture RISC core with a 14-bit instruction set, providing deterministic instruction execution and high code density. Its XLP technology enables nanoWatt sleep currents suitable for always-on energy harvesting or battery-backed systems, while the rich analog/mixed-signal peripheral set enables closed-loop control without external op-amps or DACs.
Typical applications include LED lighting drivers, switch-mode power supplies, battery chargers, BLDC and brushed motor control, and general-purpose embedded control with analog signal conditioning. The 28-SOIC package also supports hand-soldering and breadboard prototyping alongside automated SMT assembly.
When designing with this part, verify Vdd decoupling (typically 100 nF + bulk), configure unused I/O pins as outputs to minimize leakage, and use Microchip's MPLAB X IDE with XC8 compiler for development. Always consult the device-specific errata sheet before finalizing firmware.
This page synthesizes distributor pricing, drop-in PIC16F177x family alternatives, and practical analog-integration design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1776-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 PIC16F1776-I/SO (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, I/O Pins, ADC, DAC.
PIC16F1776-E/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 →PIC16F1708-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F1709-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1776-I/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC RISC |
| Instruction Set Width | 14-bit |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data RAM | 1 KB |
| Operating Voltage Range | 2.5 V / 3.3 V / 5 V |
| Hộp | 28-SOIC (0.295", 7.50 mm width) |
| Kiểu lắp đặt | Surface Mount |
| ADC Resolution | 10-bit |
| DAC Resolution | 10-bit |
| On-chip Op-Amps | Yes |
| Comparators | Yes |
| Zero-Cross Detect | Yes |
| PWM Resolution | 10/16-bit selectable |
| Communication Interfaces | SPI, I2C, EUSART |
| Peripheral Pin Select (PPS) | Yes |
| I/O Drive Current | 100 mA (high-current I/Os) |
| Low-Power Technology | XLP (eXtreme Low Power) |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial, "I" suffix) |
| Tube Standard Quantity | 27 per tube |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F1776-I/SO
| Chân 1 | RA3/AN3 — Port A bit 3 / Analog input 3 |
| Chân 2 | RA4/AN4 — Port A bit 4 / Analog input 4 |
| Chân 3 | RA5/AN5 — Port A bit 5 / Analog input 5 |
| Chân 4 | RA6/OSC2 — Port A bit 6 / Oscillator output |
| Chân 5 | RA7/OSC1 — Port A bit 7 / Oscillator input |
| Chân 6 | Vdd — Positive supply voltage |
| Chân 7 | Vss — Ground reference |
| Chân 8 | RB0/INT — Port B bit 0 / External interrupt |
| Chân 9 | RB1 — Port B bit 1 |
| Chân 10 | RB2 — Port B bit 2 |
| Chân 11 | RB3 — Port B bit 3 |
| Chân 12 | RB4 — Port B bit 4 |
| Chân 13 | RB5 — Port B bit 5 |
| Chân 14 | RB6/PGC — Port B bit 6 / ICSP clock |
| Chân 15 | RB7/PGD — Port B bit 7 / ICSP data |
| Chân 16 | RC0 — Port C bit 0 |
| Chân 17 | RC1 — Port C bit 1 |
| Chân 18 | RC2 — Port C bit 2 |
| Chân 19 | RC3 — Port C bit 3 |
| Chân 20 | RC4 — Port C bit 4 |
| Chân 21 | RC5 — Port C bit 5 |
| Chân 22 | RC6 — Port C bit 6 |
| Chân 23 | RC7 — Port C bit 7 |
| Chân 24 | RE3/MCLR — Port E bit 3 / Master Clear (reset) |
| Chân 25 | RA0/AN0 — Port A bit 0 / Analog input 0 |
| Chân 26 | RA1/AN1 — Port A bit 1 / Analog input 1 |
| Chân 27 | RA2/AN2 — Port A bit 2 / Analog input 2 |
| Chân 28 | Vss — Ground reference |
Ứng dụng tiêu biểu
PIC16F1776-I/SO phù hợp cho 6 Áp dụngs: LED Lighting Drivers, Switch-Mode Power Supplies (SMPS), Battery Charging Controllers, BLDC and Brushed Motor Control, Industrial Control and Sensor Signal Conditioning, General-Purpose Embedded Control with Analog Integration.
LED Lighting Drivers
The PIC16F1776-I/SO is purpose-built for high-efficiency LED lighting drivers thanks to its integrated 10-bit DAC, operational amplifiers, comparators, and configurable 10/16-bit PWM channels. Its 14 KB Flash accommodates advanced dimming algorithms including DALI, 0-10 V analog, and color-mixing schemes, while the 32 MHz core supports real-time constant-current loop control without external DSP overhead. The on-chip zero-cross detect and op-amps allow primary-side feedback in isolated LED drivers, reducing BOM and PCB area versus discrete analog solutions. Per Microchip's PIC16F177x datasheet, the XLP nanoWatt sleep modes also enable always-on standby lighting with sub-uA quiescent draw.
Được đề xuất
Switch-Mode Power Supplies (SMPS)
For switch-mode power supplies, the PIC16F1776-I/SO combines 32 MHz CPU throughput with on-chip high-resolution PWM (up to 16-bit), fast comparators, and 10-bit ADC for closed-loop digital control of buck, boost, and flyback topologies. The integrated op-amps and DAC can implement analog front-end functions such as current sensing and slope compensation without external ICs, simplifying PFC and LLC controller designs. Per Microchip's product family documentation, this MCU family targets highly integrated, low-wattage power conversion, with 14 KB Flash enabling sophisticated state-machine firmware for soft-start, fault handling, and adaptive dead-time control.
Được đề xuất
Battery Charging Controllers
The PIC16F1776-I/SO is well suited for battery charging applications such as Li-ion, lead-acid, and NiMH chargers. Its 10-bit ADC monitors battery voltage and current with adequate resolution for CC/CV charging profiles, while the 10-bit DAC and on-chip op-amps enable precise reference generation. The XLP low-power modes minimize quiescent draw when the charger is idle, extending shelf life of backup-battery products. According to Microchip's PIC16F177x/176x product family documentation, the 14 KB Flash supports multi-stage charging algorithms, JEITA thermal protection, and USB-PD or BC1.2 negotiation firmware.
Được đề xuất
BLDC and Brushed Motor Control
For BLDC, PMSM, and brushed DC motor control, the PIC16F1776-I/SO delivers 32 MHz throughput and 100 mA high-current I/O drivers sufficient to drive small FET gate drivers directly or via level shifters. Its 10/16-bit PWM resolution supports sinusoidal commutation and field-oriented control basics, while 14 KB Flash fits sensored and sensorless trapezoidal/BLDC algorithms. The integrated comparators enable zero-cross EMF sensing for sensorless BLDC startups. Per Microchip's application notes for the PIC16F177x family, this MCU also handles fault protection, current limiting, and speed PI control loops in real time without external DSP support.
Được đề xuất
Industrial Control and Sensor Signal Conditioning
The PIC16F1776-I/SO integrates 10-bit ADC, 10-bit DAC, on-chip op-amps, and comparators that make it ideal for industrial sensor signal conditioning, 4-20 mA loop transmitters, and process-control front-ends. Its -40C to +85C industrial temperature rating and 5 V tolerance suit factory automation environments. The 14 KB Flash accommodates linearization tables for thermocouples, RTDs, and bridge sensors, while SPI/I2C/EUSART interfaces connect to external ADCs, DACs, or industrial buses. According to Microchip's PIC16F177x datasheet, the on-chip zero-cross detect and configurable PWM also enable triac-based heater control and phase-angle dimming.
Được đề xuất
General-Purpose Embedded Control with Analog Integration
The PIC16F1776-I/SO serves as a general-purpose 8-bit MCU for embedded products needing rich analog integration without external op-amps, DACs, or comparators. Typical uses include appliance control, HVAC actuators, smart sensors, consumer electronics, and IoT edge nodes where the XLP nanoWatt sleep modes extend battery life. The 32 MHz core and 14 KB Flash fit real-time control loops plus BLE/Zigbee host command handling when paired with an external transceiver. Per Microchip's PIC16F177x documentation, the Peripheral Pin Select (PPS) feature allows flexible I/O mapping to optimize PCB routing in space-constrained designs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1776-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-E/SO | PIC16F1773-I/SO | PIC16F1769-I/SO | PIC16F1708-I/SO | PIC16F1709-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Flash Memory | 14 KB | 14 KB | 7 KB | 8 KB | 7 KB | 14 KB |
| RAM | 1 KB | 1 KB | 512 B | 1 KB | 512 B | 1 KB |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| On-chip DAC / Op-amp / ZCD | Yes (10-bit DAC, op-amp, ZCD) | Yes (same) | Yes (same) | Reduced (no ZCD) | No DAC/op-amp/ZCD | No DAC/op-amp/ZCD |
| Operating Temperature Range | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Highest Flash and full analog integration in 28-SOIC PIC16F1xxx family (vsPIC16F1773-I/SO)
- Broader analog peripheral set than PIC16F1708/1709 (vsPIC16F1708-I/SO)
- Industrial temperature rating matches deployment envelope (vsPIC16F1776-E/SO)
Ghi chú thiết kế
Decouple Vdd (pin 6) with a 100 nF ceramic capacitor placed within 5 mm of the pin, plus a 10 uF bulk capacitor on the supply rail. The PIC16F1776 datasheet recommends a low-ESR ceramic for high-frequency noise suppression. For battery-powered designs, route the bulk cap near Vdd and ensure the ground return path is short to minimize voltage droop during high-load PWM transitions.
Always configure MCLR (pin 24) with a 10 kohm pull-up to Vdd for normal operation; floating MCLR can cause spurious resets. Per Microchip's PIC16F177x datasheet, leaving unused I/O pins as inputs without pull-ups may cause excess quiescent current; configure them as outputs or enable internal weak pull-ups. Also verify ICSP pins RB6/PGC and RB7/PGD are not loaded with heavy capacitance that would impede in-circuit programming.
When using the high-current 100 mA I/O pins for direct LED or relay drive, ensure total pin current does not exceed the package dissipation limit (per-pin and per-port specs in datasheet). For PWM-driven outputs above 20 kHz, place a small ferrite bead or RC snubber to reduce EMI ringing. Use the Peripheral Pin Select (PPS) feature to remap peripherals away from noisy high-current pins and onto quieter ports.
Thông tin tuân thủ
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified; the PIC16F1776 is a general-purpose MCU not specifically qualified for automotive. For automotive applications, consult Microchip's automotive-grade PIC portfolio.
