PIC16LF1776T-I/SO - 8-Bit 32MHz MCU 14KB Flash 28-SOIC | Microchip
MPN: PIC16LF1776T-I/SO ✓ Hoạt độngPIC16LF1776T-I/SO Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), peripherals and I/O on one IC. The PIC16F family uses a RISC-based 8-bit core optimized for deterministic, low-latency control loops, while the "LF" prefix indicates the wide-voltage, low-power variant suitable for battery and energy-harvesting systems. PIC MCUs sit in the broader semiconductor hierarchy: microcontroller -> embedded processor -> integrated circuit, and are widely deployed where predictable real-time behavior matters more than raw compute throughput.
Key features of the PIC16LF1776 include 14KB self-programmable Flash (8K × 14 words), 1KB RAM, four 10-bit DACs, two op-amps, two high-speed comparators, programmable ramp generator (PRG), zero-cross detect (ZCD), complementary waveform generators for 10/16-bit PWMs, 100 mA capable I/Os, peripheral pin select (PPS), and serial interfaces including SPI, I²C and EUSART. The wide 1.8V-3.6V Vdd range plus XLP™ nanoWatt technology extends battery life in always-on designs.
The architecture pairs a Harvard RISC core with an on-chip 32MHz oscillator and Microchip's Core Independent Peripherals (CIPs) — peripherals that run without CPU intervention. This combination enables accurate, deterministic closed-loop control for LED drivers, digital power supplies, and BLDC motor commutation without burdening the main core.
Typical applications include high-performance LED lighting with dimming and color-mixing, switched-mode power supplies with digital compensation, battery-charging and battery-management systems, sensor signal conditioning, industrial control loops, and small motor-control boards. The on-chip 10-bit DACs and op-amps simplify analog front-ends, while the 100 mA I/Os can directly drive LED strings or small relays.
When designing with this part, leverage PPS to remap peripherals to almost any I/O pin, easing PCB layout, and use the complementary PWM outputs together with the programmable ramp generator for high-resolution, dead-band-controlled power-stage timing. For power budgeting, the XLP™ sleep current in the nanoamp range is critical for long-life battery or energy-harvesting products.
This page consolidates distributor stock and pricing, drop-in alternatives, and practical design guidance beyond what the manufacturer datasheet alone provides, helping engineers evaluate and source the PIC16LF1776T-I/SO efficiently.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1776T-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 PIC16LF1776T-I/SO (cùng hình factor và footprint) — khác nhau ở Core Architecture, Package, Program Memory (Flash), Family, I/O Pins.
PIC16LF1776-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F1776-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF1777-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1778-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1776T-I/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Family | PIC® XLP™ 16F, PIC16LF177x series |
| Program Memory (Flash) | 14 KB (8K × 14 words) |
| RAM | 1 KB |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage (Vdd) | 1.8 V to 3.6 V |
| Hộp | 28-SOIC (0.295", 7.50 mm width) |
| I/O Pins | Up to 25 (100 mA sink/source capable) |
| 10-bit DAC | 4 channels |
| Operational Amplifiers | 2 on-chip |
| High-Speed Comparators | 2 |
| Programmable Ramp Generator (PRG) | Yes |
| Zero-Cross Detect (ZCD) | Yes |
| PWM | 10/16-bit, complementary outputs with dead-band |
| Peripheral Pin Select (PPS) | Yes |
| Serial Interfaces | SPI, I²C, EUSART |
| XLP™ nanoWatt Sleep Current | Low (nanowatt class) |
| Nhiệt độ hoạt động | -40 °C to +85 °C (Industrial) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16LF1776T-I/SO
| Chân 1 | RA2/AN2/DAC1OUT/OPA1OUT/SEG7/COM0 — Bidirectional I/O with analog, DAC, op-amp and LCD functions |
| Chân 2 | RA3/AN3/DAC1REF+/OPA1IN-/VREF+/SEG15/COM1 — Bidirectional I/O and positive DAC/op-amp reference |
| Chân 3 | RA4/OPA1IN+/T0CKI/CCP4/COM2 — Bidirectional I/O, op-amp non-inverting input, Timer0 clock |
| Chân 4 | RA5/OPA2IN+/AN4/DAC2OUT/CCP3/COM3 — Bidirectional I/O, op-amp 2 input, DAC2 output |
| Chân 5 | Vss — Ground reference |
| Chân 6 | RA7/OSC1/CLKIN — External oscillator input / general I/O |
| Chân 7 | RA6/OSC2/CLKOUT — External oscillator output / general I/O |
| Chân 8 | RC0/SOSCO/T1CKI/PWMIN — Bidirectional I/O, secondary oscillator, Timer1 clock, PWM input |
| Chân 9 | RC1/SOSCI/CCP2 — Bidirectional I/O, secondary oscillator, Capture/Compare/PWM |
| Chân 10 | RC2/CCP1 — Bidirectional I/O, Capture/Compare/PWM 1 |
| Chân 11 | RC3/SCL/SCK — I²C clock or SPI clock / general I/O |
| Chân 12 | RC4/SDA/SDI — I²C data or SPI data input / general I/O |
| Chân 13 | RC5/SDO — SPI data output / general I/O |
| Chân 14 | RC6/TX/CK/AN8 — EUSART TX or clock, analog input |
| Chân 15 | RC7/RX/DT/AN9 — EUSART RX or data, analog input |
| Chân 16 | Vdd — Positive supply (1.8V-3.6V) |
| Chân 17 | RB7/ICSPDAT/AN7 — Programming data, analog input |
| Chân 18 | RB6/ICSPCLK — Programming clock |
| Chân 19 | RB5/AN11/DAC3OUT/CCP5 — Analog input, DAC3 output, PWM5 |
| Chân 20 | RB4/AN10/DAC4OUT — Analog input, DAC4 output |
| Chân 21 | RB3/AN9/CCP2 — Analog input, Capture/Compare/PWM 2 |
| Chân 22 | RB2/AN8/PWMIN/FLT0 — Analog input, PWM fault input |
| Chân 23 | RB1/AN7/HLVDIN/C1IN3-/C2IN3- — Analog input, comparator input |
| Chân 24 | RB0/AN6/FLT0/INT — Analog input, PWM fault, external interrupt |
| Chân 25 | RA0/AN0/DAC1OUT/SEG0/COM4 — Analog input, DAC, LCD segment |
| Chân 26 | RA1/AN1/DAC1REF-/OPA1OUT/SEG1/COM5 — Analog input, DAC negative reference, op-amp output |
| Chân 27 | Vcap — Filter capacitor for internal voltage regulator |
| Chân 28 | Vss — Ground reference |
Ứng dụng tiêu biểu
PIC16LF1776T-I/SO phù hợp cho 6 Áp dụngs: High-Performance LED Lighting Drivers, Digital Switched-Mode Power Supplies (SMPS), Battery Charging and Battery Management Systems, BLDC and Brushed-DC Motor Control, Sensor Signal Conditioning and Industrial Sensing, Consumer Appliance and White Goods Control.
High-Performance LED Lighting Drivers
The PIC16LF1776T-I/SO is ideal for high-performance LED lighting drivers thanks to its 10/16-bit complementary PWMs, programmable ramp generator (PRG), zero-cross detect (ZCD), four 10-bit DACs and 100 mA capable I/Os in a single 28-SOIC package. Designers can implement smooth analog-style dimming, color-mixing across multiple LED strings and flicker-free high-frequency PWM using the on-chip 16-bit PWM at 32 MHz, achieving >1 MHz PWM resolution. The 4 DACs let multiple LED strings be driven with independent analog currents while the complementary outputs deliver on-board half-bridge timing for boost or buck topologies. XLP™ nanowatt sleep current extends battery life in mains-off standby. Unlike an external LED-driver IC, the PIC16LF1776T-I/SO adds an 8-bit CPU to run custom color algorithms, networked lighting protocols, or fault diagnostics without a second MCU.
Được đề xuất
Digital Switched-Mode Power Supplies (SMPS)
The PIC16LF1776T-I/SO excels in digital SMPS and PFC applications because its high-speed comparators feed directly into the programmable ramp generator for peak-current-mode and average-current-mode control without external glue logic. Its 10/16-bit complementary PWMs with programmable dead-band directly control synchronous half-bridge FET timing, while the four 10-bit DACs set reference voltages for voltage-mode and current-mode loops. The 32 MHz core executes compensation math with deterministic interrupt latency, supporting switching frequencies above 250 kHz. The 1.8-3.6 V wide-Vdd "LF" variant runs directly from auxiliary bias rails of offline converters, simplifying start-up sequencing. Compared with a pure analog controller, the PIC16LF1776T-I/SO enables adaptive dead-time, soft-start profiling, and telemetry via EUSART or I²C without firmware overhead.
Được đề xuất
Battery Charging and Battery Management Systems
The PIC16LF1776T-I/SO is well matched to single-cell and multi-cell battery charging and battery management designs because its XLP™ nanowatt technology keeps quiescent current in the nanoamp class during sleep, preserving charge in always-on battery packs. Two on-chip op-amps sense charge/discharge current with low-offset, two high-speed comparators detect end-of-charge and over-current events, and four 10-bit DACs set programmable charge-voltage and charge-current references. The wide 1.8-3.6 V Vdd runs directly from a single Li-ion/LiFePO4 cell. Complementary 16-bit PWMs drive synchronous buck/boost chargers with precise dead-band, eliminating shoot-through. PPS allows flexible pin routing for safety-critical signals. Compared with discrete battery management ICs, the PIC16LF1776T-I/SO adds a full 8-bit CPU for state-of-charge algorithms and SMBus/EUSART telemetry.
Được đề xuất
BLDC and Brushed-DC Motor Control
The PIC16LF1776T-I/SO is a strong fit for small BLDC and brushed-DC motor control boards because its 10/16-bit complementary PWMs with programmable dead-band directly drive half-bridges or full H-bridges for 1-2 phase stepper, brushed-DC and BLDC motors. The high-speed comparators handle back-EMF zero-cross sensing for sensorless BLDC commutation, and the four 10-bit DACs set torque/speed reference profiles. PRG provides hardware slope compensation for current loops at low PWM duty cycles, and ZCD simplifies AC-line-synchronized timing. With 32 MHz core speed and 8 MIPS throughput, real-time FOC and trapezoidal commutation both fit inside the 14 KB Flash. PPS lets the designer reassign PWM phases for optimal PCB routing. Compared with a dedicated motor-control IC, this part adds full programmability for custom motion profiles.
Được đề xuất
Sensor Signal Conditioning and Industrial Sensing
The PIC16LF1776T-I/SO is ideal for industrial sensor signal conditioning because its two on-chip op-amps, two high-speed comparators, four 10-bit DACs and 10/16-bit ADC sampling combine into a complete analog front-end on a single die. Designers can amplify a thermocouple or strain-gauge signal, drive a Wheatstone-bridge excitation reference from a DAC, and digitize the result at 32 MIPS — without external analog ICs. PPS eases routing of mixed analog and digital signals, while 100 mA I/Os can directly switch relays or 4-20 mA loops. The 1.8-3.6 V wide Vdd runs from 24 V industrial loops through a small LDO. Compared with a standalone op-amp + ADC chain, the PIC16LF1776T-I/SO integrates calibration, linearization, and HART/EUSART comms in one chip.
Được đề xuất
Consumer Appliance and White Goods Control
The PIC16LF1776T-I/SO suits washing machines, refrigerators, induction cooktops, coffee machines and small kitchen appliances because it integrates brushed/BLDC motor control, LED display driving and user-interface handling in one 28-SOIC IC. Its complementary PWMs handle motor or induction-heating inverter switching, the four 10-bit DACs set analog references for temperature and power, and the high-speed comparators perform zero-cross detection on the AC mains for synchronous TRIAC driving. The on-chip EUSART and I²C connect to displays, keypads, and wireless modules. Wide 1.8-3.6 V Vdd tolerates noisy rectified mains rails after a small regulator. Compared with multi-chip solutions, the PIC16LF1776T-I/SO lowers BOM cost and PCB area while keeping full firmware flexibility.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1776T-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 | PIC16LF1776-I/SO | PIC16F1776-I/SO | PIC16LF1777-I/SO | PIC16LF1778-I/SO |
|---|---|---|---|---|---|
| Brand | 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 |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 28 KB | 56 KB |
| RAM | 1 KB | 1 KB | 1 KB | 2 KB | 4 KB |
| Operating Voltage (Vdd) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 10-bit DAC Channels | 4 | 4 | 4 | 4 | 4 |
| On-chip Op-Amps | 2 | 2 | 2 | 2 | 2 |
| Programmable Ramp Generator | Yes | Yes | Yes | Yes | Yes |
| XLP™ Sleep Current | Nanowatt class | Nanowatt class | Standard LP (higher than LF) | Nanowatt class | Nanowatt class |
Bảo phân biệt quan trọng
- Highest level of analog integration in the PIC16F family (vsPIC16LF1769-I/ML)
- 16-bit PWM with complementary outputs and dead-band (vsPIC16F1776-I/SO (5V variant))
- 1.8-3.6 V Vdd + nanowatt XLP™ sleep (vsPIC16LF1778-I/SO (28 KB Flash))
Ghi chú thiết kế
Estimated: at Vdd=3.3 V and 32 MHz active, typical IDD for the PIC16LF1776 core is around 4 mA (≈0.13 mA/MHz). Place a 100 nF decoupling capacitor as close as possible to the Vdd pin (pin 16) and a 10 µF bulk cap on the same rail. Add a 1 µF cap on the Vcap pin (pin 27) to stabilize the internal core voltage regulator — omitting this capacitor is a common cause of erratic resets.
Use Peripheral Pin Select (PPS) to remap digital peripherals (CCP, SPI, I²C, EUSART) to almost any digital I/O. This greatly simplifies PCB routing — you can route the SPI bus to one side of the SOIC and remap the UART to another side without swapping the MCU. Refer to the PPS input/output selection tables in the device datasheet, and remember PPS must be unlocked via the PPSLOCK register sequence on every reset.
The two op-amps, four DACs and high-speed comparators share analog pins with digital I/O. Configuring a pin as a digital output while the analog peripheral is enabled can create contention and corrupt the analog reading — always configure the analog function first, then disable the digital input on that pin (ANSELx register). Also, the PRG requires a slope-compensation input pin; miswiring this leads to subharmonic oscillation in peak-current-mode supplies.
The 28-SOIC package has a moderate θJA of roughly 80-90 °C/W on a standard 2-layer JEDEC test board. Estimated: at maximum Vdd (3.6 V), 32 MHz active and full peripheral activity, power dissipation stays well below 100 mW, so no heatsink is required. However, in a sealed industrial enclosure at 85 °C ambient, derate current on the 100 mA I/O banks to avoid exceeding the silicon junction limit.
Thông tin tuân thủ
RoHS and REACH compliance stated by Microchip. Industrial -I temperature grade only (no AEC-Q100 automotive variant of PIC16LF1776 exists in 28-SOIC; automotive users should consult the PIC16F1776 Q-grade equivalents).
