PIC16LF1779-E/P - 8-Bit MCU, 28KB Flash, 32MHz, 40-PDIP | Microchip
MPN: PIC16LF1779-E/P ✓ Hoạt độngPIC16LF1779-E/P Tóm tắt
An 8-bit PIC microcontroller is a Harvard-architecture RISC processor that executes one instruction per clock cycle (most instructions) and integrates Flash, RAM, EEPROM, peripherals, and I/O onto a single die. Within the broader taxonomy, PIC MCUs sit under Microcontrollers -> Integrated Circuits -> Semiconductors; the PIC16F sub-family targets cost-sensitive 8-bit general-purpose and mixed-signal applications. The PIC16LF1779 in particular adds high-performance analog peripherals (10-bit ADC with computation, DACs, op-amps, comparators) suited to power-conversion, lighting, and motor-control loops.
Key features include four 10-bit PWM outputs with complementary/timer modes, multiple USART, SPI and I2C interfaces, configurable logic cells (CLC), numerical controlled oscillators (NCO), and zero-cross detection. The device supports up to 36 I/O pins, three 16-bit timers, and an on-chip 32 MHz internal oscillator with PLL. Its CMOS design with XLP technology typically yields standby currents in the microamp range, enabling battery-powered designs.
Typical applications include LED lighting and drivers, switch-mode power supplies (SMPS), battery chargers, DC-DC and power-factor correction converters, BLDC and stepper motor control, and general-purpose mixed-signal embedded platforms. Compared with discrete analog implementations, the PIC16LF1779 reduces BOM and PCB area while providing configurable firmware-driven control loops.
When designing with this part, ensure decoupling capacitors are placed close to VDD pins and use the internal oscillator with PLL if precise timing is required. The 40-pin PDIP package simplifies prototyping and rework on through-hole boards but consumes more board area than surface-mount alternatives.
This page consolidates distributor pricing, verified cross-reference options, and PCB-level design guidance that goes beyond the manufacturer datasheet, helping engineers select and source the PIC16LF1779-E/P with confidence.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1779-E/P — 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 PIC16LF1779-E/P (cùng hình factor và footprint) — khác nhau ở Package, ADC, Timers, I/O Pins, Operating Temperature.
PIC16LF1779-I/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F1779-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1519-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1519-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F45K22-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1567-I/P
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Xem tài liệu →PIC16LF1779-E/P Tỷ lệ tối đa & tính chất điện
| Core | PIC 8-bit RISC |
| Family | PIC XLP 16F Series |
| Program Memory Size | 28 KB (16K x 14 words) Flash |
| RAM Size | 2 KB (2048 bytes) |
| Tần số xung maksimum | 32 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V |
| ADC | 10-bit |
| I/O Pins | Up to 36 |
| Timers | 3 x 16-bit |
| PWM Outputs | 4 x 10-bit |
| Communication Interfaces | USART, SPI, I2C |
| Hộp | 40-pin PDIP (0.600 inch, 15.24 mm) |
| Khoảng nhiệt độ hoạt động | -40C to +125C (E suffix) |
| Kiểu lắp đặt | Through-Hole |
| Trạng thái RoHS | Compliant |
| Cấp MSL | Not applicable (through-hole) |
Cấu hình chân PIC16LF1779-E/P
| Chân 1 | RE3/MCLR/VPP — Input only / Master Clear (reset) / Programming voltage |
| Chân 2 | RA0/AN0/C1IN0+ — PORTA0 / Analog input 0 / Comparator 1 input |
| Chân 3 | RA1/AN1/C1IN1- — PORTA1 / Analog input 1 / Comparator 1 input |
| Chân 4 | RA2/AN2/C1IN0-/DAC1OUT1 — PORTA2 / Analog input 2 / DAC1 output |
| Chân 5 | RA3/AN3/C1IN1+ — PORTA3 / Analog input 3 / Comparator 1 input |
| Chân 6 | RA4/AN4/C1OUT — PORTA4 / Analog input 4 / Comparator 1 output |
| Chân 7 | RA5/AN5/C2IN1+ — PORTA5 / Analog input 5 / Comparator 2 input |
| Chân 8 | RE0/AN6 — PORTE0 / Analog input 6 |
| Chân 9 | RE1/AN7 — PORTE1 / Analog input 7 |
| Chân 10 | RE2/AN8 — PORTE2 / Analog input 8 |
| Chân 11 | VDD — Positive supply voltage |
| Chân 12 | VSS — Ground reference |
| Chân 13 | RA7/OSC1/CLKIN — PORTA7 / Oscillator input |
| Chân 14 | RA6/OSC2/CLKOUT — PORTA6 / Oscillator output |
| Chân 15 | RC0/SOSCO — PORTC0 / Secondary oscillator output |
| Chân 16 | RC1/SOSCI — PORTC1 / Secondary oscillator input |
| Chân 17 | RC2/AN11 — PORTC2 / Analog input 11 |
| Chân 18 | RC3/AN12 — PORTC3 / Analog input 12 |
| Chân 19 | RD0 — PORTD0 |
| Chân 20 | RD1 — PORTD1 |
| Chân 21 | RD2 — PORTD2 |
| Chân 22 | RD3 — PORTD3 |
| Chân 23 | RC4 — PORTC4 |
| Chân 24 | RC5 — PORTC5 |
| Chân 25 | RC6 — PORTC6 |
| Chân 26 | RC7 — PORTC7 |
| Chân 27 | RD4 — PORTD4 |
| Chân 28 | RD5 — PORTD5 |
| Chân 29 | RD6 — PORTD6 |
| Chân 30 | RD7 — PORTD7 |
| Chân 31 | VSS — Ground reference |
| Chân 32 | VDD — Positive supply voltage |
| Chân 33 | RB0/AN12/CCP4 — PORTB0 / Analog input 12 / CCP4 |
| Chân 34 | RB1/AN10/C1IN3- — PORTB1 / Analog input 10 / Comparator input |
| Chân 35 | RB2/AN8-/C1IN2- — PORTB2 / Analog input 8- / Comparator input |
| Chân 36 | RB3/AN9/C1IN2+ — PORTB3 / Analog input 9 / Comparator input |
| Chân 37 | RB4/AN11 — PORTB4 / Analog input 11 |
| Chân 38 | RB5/AN13 — PORTB5 / Analog input 13 |
| Chân 39 | RB6/ICSPCLK — PORTB6 / In-Circuit Serial Programming clock |
| Chân 40 | RB7/ICSPDAT — PORTB7 / In-Circuit Serial Programming data |
Ứng dụng tiêu biểu
PIC16LF1779-E/P phù hợp cho 6 Áp dụngs: Switch-Mode Power Supply (SMPS) Control, LED Lighting and Drivers, Battery Charging and Power Management, BLDC and Stepper Motor Control, Industrial Sensor Interfaces, Automotive Body Electronics.
Switch-Mode Power Supply (SMPS) Control
The PIC16LF1779-E/P suits SMPS primary-side and secondary-side control loops. Its 4-channel 10-bit PWM with complementary outputs and configurable dead-band drives MOSFET half-bridges directly, while the integrated op-amps (3 available) condition current-sense signals from the shunt without an external amplifier. The 10-bit ADC with computation (ADC2) performs hardware-averaged oversampling for input voltage and output current telemetry. The 32 MHz core delivers the MIPS headroom for peak-current-mode control firmware, and the 1.8-3.6 V supply matches 3.3 V auxiliary rails. Compared with discrete analog PWM controllers, the 1779 replaces the controller IC plus op-amps with one MCU, reducing BOM and enabling firmware-driven topology changes (buck / boost / flyback) on the same hardware.
Được đề xuất
LED Lighting and Drivers
The PIC16LF1779-E/P targets commercial and industrial LED lighting applications. Its 4 PWM channels with 10-bit resolution deliver smooth dimming down to <0.1% duty cycle without flicker; the integrated op-amps sense LED string current via high-side or low-side shunts, and the zero-cross detect (ZCD) peripheral simplifies TRIAC-dimmable retrofit lamp designs. The CLC (Configurable Logic Cell) peripherals implement hardware debouncing and timing logic for capacitive-touch dimming interfaces, freeing the CPU for comms tasks. With 28 KB Flash and 2 KB RAM, the device supports DALI, 0-10 V, and DMX512 lighting protocols in a single chip. The 40-pin PDIP package simplifies through-hole prototyping for luminaire modules.
Được đề xuất
Battery Charging and Power Management
The PIC16LF1779-E/P integrates the analog front-end and control logic required for Li-ion, lead-acid, and NiMH chargers. Its built-in 5-bit DAC sets programmable charge-current references, while the op-amps amplify shunt-voltage drops across current-sense resistors at the battery terminal. The ADC with computation supports Coulomb-counting firmware for state-of-charge estimation. Operating from 1.8-3.6 V, the part can be powered directly from a single Li-ion cell, simplifying portable charger designs. Compared with dedicated charger ICs, the 1779 enables USB-PD and proprietary charging profiles via firmware updates without hardware revision.
Được đề xuất
BLDC and Stepper Motor Control
The PIC16LF1779-E/P drives small BLDC and stepper motors in appliance, fan, and pump applications. Its 4 complementary PWM pairs with programmable dead-time generate the 6-step commutation signals for 3-phase BLDC motors, while the integrated op-amps amplify back-EMF sensing on the un-energized phase for sensorless control. The 32 MHz instruction rate executes Field-Oriented Control (FOC) or trapezoidal commutation firmware with cycle times under 50 us. The 10-bit ADC samples phase currents at the PWM midpoint for accurate torque estimation. With 36 I/O pins, the device can simultaneously control the motor, read Hall sensors or quadrature encoders, and drive indicator LEDs - all from a single MCU in a 40-pin DIP for easy prototyping.
Được đề xuất
Industrial Sensor Interfaces
The PIC16LF1779-E/P serves as a smart sensor conditioner for industrial 4-20 mA loops, RTDs, and bridge sensors. Its op-amps provide gain stages for strain-gauge or load-cell bridges, while the 10-bit ADC with computation delivers hardware-averaged readings. The USART, SPI, and I2C peripherals communicate with host PLCs or remote IO-Link masters. The CLC blocks implement window-comparator logic for sensor-fault detection without CPU intervention, reducing firmware load. Operating from -40C to +125C, the device withstands factory-floor temperature swings, and the 1.8-3.6 V supply is compatible with 3.3 V industrial backplanes.
Được đề xuất
Automotive Body Electronics
The PIC16LF1779-E/P (E temp grade -40C to +125C) fits non-safety automotive body modules such as interior lighting controllers, seat-position memory, and HVAC blend-door actuators. Its PWM outputs drive small DC motors and LED strings, while the ADC reads potentiometers and temperature sensors. The CLC peripherals debounce mechanical switches and implement hardware timing for relay drivers, offloading the CPU. While not AEC-Q100 qualified (automotive projects requiring that grade should consider PIC16F1779-E/P variants with Q1 suffix or dsPIC33 automotive parts), the E temp grade makes the 1779-E/P usable in cabin-electronics environments below the AEC-Q100 threshold.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1779-E/P — 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 | PIC16LF1779-I/P | PIC16F1779-E/P | PIC16LF1519-I/P | PIC16LF1519-E/P | PIC18F45K22-E/P | PIC16LF1567-I/P |
|---|---|---|---|---|---|---|---|
| Package | 40-pin PDIP | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 28 KB | 28 KB | 28 KB | 32 KB | 32 KB | 32 KB | 14 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 1.5 KB | 1 KB |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 32 MHz | 20 MHz | 20 MHz | 64 MHz | 32 MHz |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) |
| Integrated Op-Amps | Yes (3) | Yes (3) | Yes (3) | No | No | No | No |
| PWM Channels | 4 x 10-bit | 4 x 10-bit | 4 x 10-bit | 2 x 10-bit | 2 x 10-bit | 2 x 10-bit (CCP) | 16 x 10-bit (LED driver) |
| CLC / NCO Peripherals | Yes | Yes | Yes | No | No | No | No |
Bảo phân biệt quan trọng
- Integrated analog peripherals (3 op-amps, DACs, comparators) (vsPIC16LF1519-I/P)
- Higher PWM channel count with 10-bit resolution (vsPIC16LF1519-I/P)
- XLP eXtreme Low Power technology with nA-range sleep currents (vsPIC18F45K22-E/P)
Ghi chú thiết kế
Estimated: at 32 MHz and 3.3 V VDD, the PIC16LF1779-E/P core draws approximately 7 mA. Add 1-2 mA for active peripherals (ADC + op-amps + PWM). For battery-powered designs, use the XLP sleep modes (DOZE, IDLE, SLEEP) - the typical sleep current is in the nA range. Place a 100 nF decoupling capacitor close to each VDD pin (pins 11 and 32) and a bulk 10 uF tantalum or ceramic at the board supply entry.
The 40-pin PDIP package simplifies through-hole prototyping but consumes approximately 1 square inch of board area. When laying out the PCB, keep analog traces (ADC inputs, op-amp inputs) away from PWM switching traces to avoid capacitive coupling. Use a ground plane on the bottom layer and route analog and digital returns separately back to the VSS pins (12 and 31). Place the ICSP header (RB6/RB7) at the board edge for programming access without removing the MCU.
For ADC measurements to achieve the full 10-bit resolution, the analog supply must be clean. Add a ferrite bead between VDD and AVDD (if separated) and place 100 nF + 10 uF capacitors on AVDD. Use the ADC's computation mode (ADC2) with hardware averaging to reduce noise. For op-amp circuits, keep feedback components within 5 mm of the inverting input pin and use a ground pour under the feedback network to minimize stray capacitance.
Do not apply more than 3.6 V to any pin on the LF variant - the PIC16LF1779-E/P is NOT 5V tolerant. For designs requiring 5V tolerance, choose the PIC16F1779-E/P (1.8-5.5V) instead. The MCLR pin (RE3) requires a 10 kohm pull-up to VDD; leaving it floating causes intermittent resets. Configuration words must be programmed before the first instruction fetch; use MPLAB X IDE to generate the .cfg file matching your oscillator, watchdog, and code-protection settings.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - for automotive safety applications consider AEC-Q100-qualified dsPIC33EP variants. Lead-free and halogen-free per Microchip material declaration.
