PIC16F1779-E/ML - 28KB Flash 8-bit MCU, 44-QFN | Microchip
MPN: PIC16F1779-E/ML ✓ Hoạt độngPIC16F1779-E/ML Tóm tắt
The PIC16F1779 belongs to the broader category of 8-bit RISC microcontrollers (MCU). An 8-bit MCU executes instructions on 8-bit-wide data paths and is widely used in cost-sensitive embedded designs where deterministic GPIO control, low power consumption, and rich on-chip analog integration outweigh the need for higher CPU throughput. The PIC16F1779 family sits at the upper end of Microchip's PIC16 mid-range line, where intelligent analog peripherals allow designers to implement closed-loop SMPS, LED drivers, motor commutation, and battery charging without external analog ICs.
Key features include 100 mA high-current I/O pins, Peripheral Pin Select (PPS) for flexible signal routing, SPI/I2C and EUSART serial interfaces, 10/16-bit PWMs with independent time bases, four operational amplifiers, 10-bit DAC, and core-independent peripherals (CIPs) that operate without CPU intervention. The -E suffix denotes an extended operating temperature range of -40C to +125C, while /ML identifies the 44-pin QFN package.
Architecturally, the PIC16F1779 uses a modified Harvard RISC core with a 14-bit instruction word, providing deterministic interrupt latency and a single-cycle instruction execution at 32 MHz (8 MIPS). On-chip peripherals are interconnected through Microchip's PPS fabric and signal routing matrix, enabling the COG, PWM, comparator, and op-amp outputs to drive each other and the GPIO ports with minimal CPU load, which simplifies real-time control firmware.
Typical applications include LED lighting drivers, switch-mode power supply (SMPS) digital control, battery charging systems, BLDC/PMSM motor control, and general-purpose industrial automation. The high 100 mA I/O sink/source capability allows direct drive of power MOSFETs, opto-isolators, and relay coils without external buffers.
When designing with this MCU, allocate the 28 KB Flash budget across bootloader, application, and EEPROM emulation regions early in firmware planning. The PPS matrix must be locked at runtime if any pin is reassigned to avoid glitches, and unused high-current I/O pins should be configured as outputs driving low to minimize quiescent current.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone Microchip datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1779-E/ML — 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 PIC16F1779-E/ML (cùng hình factor và footprint) — khác nhau ở Package, DAC, Operating Temperature, Program Memory (Flash), ADC.
PIC16F1779-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1778-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1769-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên 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 →PIC16F1719-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1527-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F1779-E/ML Tỷ lệ tối đa & tính chất điện
| Core Processor | PIC |
| Core Size | 8-bit |
| Program Memory Size | 28 KB (16K x 14) Flash |
| RAM Size | 2 KB |
| Tần số xung maksimum | 32 MHz |
| Instruction Set | PIC16 (14-bit instruction word) |
| Data Converters | A/D 12x10b; D/A 1x10b |
| Hộp | 44-QFN (8x8 mm) |
| Khoảng nhiệt độ hoạt động | -40C to +125C |
| Điện áp cung cấp | 2.3 V to 5.5 V |
| I/O Pins | 36 (with 100 mA high-current capability) |
| Peripherals | Brown-out Detect, PWM, WDT, OpAmp, Comparator, ZCD, PRG, COG, PPS |
| Connectivity | I2C, SPI, EUSART |
| PWM Resolution | 10/16-bit |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F1779-E/ML
| Chân 1 | RA5/SS/HLVDIN/VCAP — GPIO / SPI slave select / high/low-voltage detect input / regulator output cap |
| Chân 2 | RA4/AN4/CPS4/T0CKI — GPIO / analog input 4 / cap touch 4 / Timer0 clock |
| Chân 3 | RA3/AN3/CPS3/Vref+/MDCARL — GPIO / analog input 3 / Vref+ / COG modulation carrier low |
| Chân 4 | RA2/AN2/CPS2/Vref-/MDCARH — GPIO / analog input 2 / Vref- / COG modulation carrier high |
| Chân 5 | RA1/AN1/CPS1/MDSRC — GPIO / analog input 1 / COG modulation source |
| Chân 6 | RA0/AN0/CPS0/MDOUT — GPIO / analog input 0 / COG modulation output |
| Chân 7 | VSS — Ground reference |
| Chân 8 | RA7/OSC1/CLKIN — GPIO / crystal oscillator input / external clock input |
| Chân 9 | RA6/OSC2/CLKOUT — GPIO / crystal oscillator output / clock output |
| Chân 10 | RC0/SOSCO — GPIO / secondary oscillator output |
| Chân 11 | RC1/SOSCI — GPIO / secondary oscillator input |
| Chân 12 | RC2/AN12/CPS12 — GPIO / analog input 12 |
| Chân 13 | RC3/AN13/CPS13 — GPIO / analog input 13 |
| Chân 14 | RC4/AN14/CPS14 — GPIO / analog input 14 |
| Chân 15 | RC5/AN15/CPS15 — GPIO / analog input 15 |
| Chân 16 | RC6/AN16/CPS16 — GPIO / analog input 16 |
| Chân 17 | RC7/AN17/CPS17 — GPIO / analog input 17 |
| Chân 18 | RD0 — GPIO port D bit 0 |
| Chân 19 | RD1 — GPIO port D bit 1 |
| Chân 20 | RD2 — GPIO port D bit 2 |
| Chân 21 | RD3 — GPIO port D bit 3 |
| Chân 22 | RD4 — GPIO port D bit 4 |
| Chân 23 | RD5 — GPIO port D bit 5 |
| Chân 24 | RD6 — GPIO port D bit 6 |
| Chân 25 | RD7 — GPIO port D bit 7 |
| Chân 26 | VSS — Ground reference |
| Chân 27 | VDD — Positive supply voltage |
| Chân 28 | RE0/AN5 — GPIO / analog input 5 |
| Chân 29 | RE1/AN6 — GPIO / analog input 6 |
| Chân 30 | RE2/AN7 — GPIO / analog input 7 |
| Chân 31 | RE3/MCLR/Vpp — GPIO / master clear reset / programming voltage |
| Chân 32 | RB0/AN8/CPS8/CCP4 — GPIO / analog input 8 / CCP4 PWM |
| Chân 33 | RB1/AN9/CPS9/PWM5 — GPIO / analog input 9 / 16-bit PWM5 |
| Chân 34 | RB2/AN10/CPS10/PWM6 — GPIO / analog input 10 / 16-bit PWM6 |
| Chân 35 | RB3/AN11/CPS11/PWM7 — GPIO / analog input 11 / 16-bit PWM7 |
| Chân 36 | RB4/SDA1/SDI1 — GPIO / I2C1 data / SPI1 data in |
| Chân 37 | RB5/SCL1/SCK1 — GPIO / I2C1 clock / SPI1 clock |
| Chân 38 | RB6/TX/CK — GPIO / EUSART TX / EUSART clock |
| Chân 39 | RB7/RX/DT — GPIO / EUSART RX / EUSART data |
| Chân 40 | VSS — Ground reference |
| Chân 41 | VDD — Positive supply voltage |
| Chân 42 | RF0 — GPIO port F bit 0 |
| Chân 43 | RF1 — GPIO port F bit 1 |
| Chân 44 | EP — Exposed thermal pad - connect to VSS for thermal dissipation |
Ứng dụng tiêu biểu
PIC16F1779-E/ML phù hợp cho 6 Áp dụngs: Switch-Mode Power Supply (SMPS) Digital Control, BLDC and PMSM Motor Control, LED Lighting Drivers and Dimmers, Battery Charging and Power Management, Industrial Sensor Signal Conditioning, Automotive Body and Lighting ECUs.
Switch-Mode Power Supply (SMPS) Digital Control
The PIC16F1779-E/ML's on-chip op-amps, 10-bit DAC, 16-bit PWM, and zero-cross detect enable a fully digital peak-current-mode controller for isolated and non-isolated DC-DC converters. The op-amp closes the current-sense loop, the 16-bit PWM with 7.8 ns resolution drives the synchronous MOSFET gate driver, and the COG module adds programmable dead-time insertion without CPU overhead. The 100 mA I/O directly drives low-side gate drivers, eliminating external buffers. Combined with the 32 MHz / 8 MIPS core, this allows 500 kHz switching frequency control loops with less than 20% CPU utilization, leaving headroom for housekeeping and PMBus telemetry over I2C or EUSART.
Được đề xuất
BLDC and PMSM Motor Control
The PIC16F1779-E/ML drives sensorless BLDC and PMSM motors through the integrated Complementary Output Generator (COG), 16-bit PWM, ZCD for back-EMF sensing, and four op-amps that condition the current-sense shunt signals. The COG produces complementary 3-phase PWM with hardware dead-band insertion in as little as 8 ns, while the 100 mA I/O sinks/source directly into gate-driver opto-isolators or low-side drivers. PPS lets the firmware reassign PWM channels to any GPIO, simplifying PCB routing on multi-axis drives. The -40C to +125C extended temperature grade supports under-hood automotive and industrial fan/pump deployments.
Được đề xuất
LED Lighting Drivers and Dimmers
The PIC16F1779-E/ML is well suited to high-brightness LED drivers, using the 10-bit DAC to set constant-current references and the 16-bit PWM to dim with 16-bit resolution (>15 bits effective at 1 kHz). The op-amps sense high-side or low-side shunt current, while the COG generates the complementary buck/boost FET timing. The 100 mA I/O pins drive logic-level MOSFETs directly for sub-100 W luminaires. PPS allows the designer to map PWM, DAC, and comparator outputs to any pin during PCB layout, easing mechanical integration. The 2 KB RAM supports full DALI-2 or DMX-512 protocol stacks for professional lighting fixtures.
Được đề xuất
Battery Charging and Power Management
Lithium-ion battery chargers and uninterruptible power supplies benefit from the PIC16F1779-E/ML's integrated 10-bit ADC (12 channels), 10-bit DAC, op-amp current sense, and 16-bit PWM. The device executes CC/CV charge profiles with sub-1% current regulation by combining hardware PWM current-mode control with periodic ADC calibration. The 36 GPIOs handle multi-cell balancing FETs, thermistor inputs, SMBus/I2C communication, and charger-inhibit signalling. The extended -40C to +125C temperature grade enables outdoor energy-storage installations and electric vehicle supply equipment where ambient temperatures exceed 85C.
Được đề xuất
Industrial Sensor Signal Conditioning
The PIC16F1779-E/ML combines four on-chip op-amps, a 10-bit DAC, and a 12-channel 10-bit ADC to perform analog signal conditioning for bridge sensors, thermocouples, RTDs, and 4-20 mA current loops. The op-amps provide fixed-gain instrumentation amplification before digitization, while the 10-bit DAC trims sensor offsets in real time. The 36 GPIOs read end-of-travel limit switches and drive indicator LEDs. PPS routes SPI/I2C to any combination of pins, simplifying PCB routing for dense sensor hubs. The extended temperature grade and 100 mA I/O capability make it suitable for harsh factory-floor instrumentation.
Được đề xuất
Automotive Body and Lighting ECUs
The PIC16F1779-E/ML targets automotive body controllers, HVAC actuators, interior/exterior lighting, and LIN-slave nodes. The -E extended temperature grade ensures operation from -40C to +125C in cabin and engine-bay environments. The 100 mA high-current I/O drives power MOSFETs, relays, and LED strings directly, while the 16-bit PWM supports smooth fade-in/fade-out dimming with hardware dead-time insertion through COG. EUSART and I2C implement LIN 2.x slave stacks. Compared with Q-Grade automotive parts, the -E temperature grade provides the same silicon die at a lower cost for non-safety body applications.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1779-E/ML — 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 | PIC16F1779-I/ML | PIC16F1778-I/ML | PIC16F1769-I/ML | PIC16F1719-I/ML | PIC16F1527-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Flash Memory | 28 KB | 28 KB | 28 KB | 14 KB | 28 KB | 28 KB |
| RAM Size | 2 KB | 2 KB | 2 KB (reduced) | 1 KB | 2 KB | 1.5 KB |
| Max Clock Frequency | 32 MHz (8 MIPS) | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 20 MHz |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| COG / PRG / ZCD | Yes (all three) | Yes | Yes | Yes | No | No |
| Operational Amplifiers | 4 | 4 | 3 | 2 | 2 | 0 |
| 100 mA High-Current I/O | Yes | Yes | Yes | Yes | Yes | No |
| Unit Price (qty 100, USD, as of 2026-09-20) | 3.32 | 3.10 | 3.20 | 2.85 | 3.00 | 2.65 |
Bảo phân biệt quan trọng
- Extended -40C to +125C operating temperature grade with same die as PIC16F1779-I/ML (vsPIC16F1779-I/ML)
- Full Intelligent Analog suite (COG, PRG, ZCD, 4 op-amps) versus reduced analog on PIC16F1719 (vsPIC16F1719-I/ML)
- Higher 32 MHz / 8 MIPS throughput versus 20 MHz on PIC16F1527 (vsPIC16F1527-I/PT)
Ghi chú thiết kế
Place a 1 uF X7R ceramic bypass capacitor within 5 mm of each VDD pin (pins 27 and 41) and a 10 uF bulk capacitor on the same VDD rail. The PIC16F1779-E/ML's internal voltage regulator requires a 1 uF low-ESR capacitor on the VCAP pin (pin 1). Estimated: at 32 MHz with all peripherals active, the core draws approximately 8 mA; with all GPIOs as inputs and PPS unlocked, add 2-4 mA. Use sleep mode (1 uA typical) for battery-powered sensor applications and wake via WDT or interrupt.
Solder the exposed thermal pad (pin 44) directly to a continuous VSS copper pour of at least 25 mm^2 to keep junction temperature below 100C in enclosed industrial housings. Keep analog signal traces (ANx, op-amp inputs) at least 3 mm away from PWM switching traces and route them over a continuous ground pour to minimize crosstalk into the 10-bit ADC. Use a 4-layer PCB stack-up with dedicated ground and power planes for switching power designs where the PIC16F1779-E/ML drives high-current MOSFETs.
When using the Peripheral Pin Select (PPS) matrix, lock the PPS registers after configuration to prevent runaway writes that could remap peripherals to invalid pins. Do not enable the 100 mA high-current I/O pins as inputs without external current-limiting resistors, as the input structure is not rated for high-current source. The MCLR pin (pin 31) requires a 10 kohm pull-up to VDD if not used as a reset; floating MCLR causes unpredictable resets in noisy motor-control environments.
Estimated: at 32 MHz with four op-amps, COG, two PWMs, and ADC continuously active, the PIC16F1779-E/ML dissipates approximately 120 mW (24 mA at 5 V). With a 44-QFN junction-to-ambient thermal resistance of approximately 28 C/W on a JEDEC EIA/JESD51 4-layer test board, the temperature rise above ambient is approximately 3.4 C, keeping the junction well below the +125C extended limit. In sealed enclosures without airflow, derate clock frequency to 8 MHz (16 MIPS effective via PLL alternative parts) to maintain margin.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip material declaration. The PIC16F1779-E/ML itself is not AEC-Q100 qualified (only the -EQ automotive suffix parts are); the -E temperature grade extends to +125C but does not constitute automotive qualification.