PIC16LF1784T-I/ML - 8-Bit 32MHz XLP MCU 7KB Flash | Microchip
MPN: PIC16LF1784T-I/ML ✓ Hoạt độngPIC16LF1784T-I/ML Tóm tắt
An 8-bit microcontroller (MCU) is a compact processor that combines a CPU, RAM, Flash program memory, EEPROM data memory, and configurable peripherals on a single chip. Within the PIC family hierarchy, the PIC16F178x falls under "eXtreme Low Power" (XLP) mid-range 8-bit controllers, sitting between base-line PIC10/12/16 and 16-bit dsPIC parts. The LF prefix indicates a low-voltage process optimized for 1.8V-3.6V operation with reduced active and sleep currents compared to the standard F variant.
Key features include 14 PWM channels (with complementary outputs), a programmable switch-mode controller (PSMC) for power conversion, multiple op-amps, comparators, and high-current I/O capable of driving LEDs directly. The integrated 12-bit ADC and 8-bit DAC eliminate external analog components, while the I2C/SPI/EUSART communication block enables easy peripheral interfacing. The 32MHz internal oscillator eliminates the need for an external crystal in most designs.
The device utilizes a Harvard-architecture RISC core with a 14-bit instruction word, providing deterministic execution and efficient code density. XLP technology delivers nanoWatt sleep currents below 50 nA, with active currents around 1.8 mA at 4 MHz, making the part well suited for battery-powered applications where sleep duty cycle dominates total energy consumption.
Typical applications include industrial sensor signal conditioning with on-chip op-amps, LED lighting controllers using the high-current PWM outputs, small brushless DC motor or fan speed controllers leveraging the PSMC peripheral, low-power IoT sensor nodes with sleep-mode duty cycling, and consumer devices requiring precision analog measurement with 12-bit ADC plus programmable gain.
When designing with this part, allocate enough decoupling capacitance close to VDD pins (one 100nF per pair of supply pins), connect unused I/O to defined logic levels (not floating) to minimize current leakage, and consider using the internal LFINTOSC to reduce BOM cost. For automotive or extreme-temperature applications, consider the -E or -40C extended grades.
This page synthesizes real distributor pricing, drop-in alternatives, pinout guidance, and practical design notes not collated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1784T-I/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 PIC16LF1784T-I/ML (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, DAC, ADC, Operating Temperature.
PIC16LF1784-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1784-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1784T-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1789-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF1786-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF1784T-I/ML Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16 8-bit RISC (enhanced mid-range, 14-bit instruction) |
| Maximum CPU Frequency | 32 MHz |
| Flash Program Memory | 7 KB (4K x 14) |
| RAM | 512 B |
| EEPROM | 256 B |
| Supply Voltage Range | 1.8 V to 3.6 V (LF low-voltage variant) |
| I/O Pins | 36 |
| ADC | 12-bit, up to 14 channels |
| DAC | 8-bit, 1 channel |
| PWM Channels | 14 (with complementary outputs) |
| Timers | 8/16-bit, multiple |
| PSMC (Programmable Switch-Mode Controller) | Yes (3 channels) |
| Op-Amps / Comparators | Integrated op-amps and comparators |
| Communication Interfaces | I2C, SPI, EUSART |
| Hộp | 44-pin QFN (ML) 8x8 mm with exposed pad |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial grade) |
| Trạng thái RoHS | Compliant |
| Cấp MSL | MSL3 (per typical QFN handling) |
Cấu hình chân PIC16LF1784T-I/ML
| Chân 1 | RA5 — Bidirectional I/O / analog input |
| Chân 2 | RA4 — Bidirectional I/O / analog input |
| Chân 3 | RA3 — Bidirectional I/O / analog input / MCLR |
| Chân 4 | RA2 — Bidirectional I/O / analog input |
| Chân 5 | RA1 — Bidirectional I/O / analog input / OPA1IN- |
| Chân 6 | RA0 — Bidirectional I/O / analog input / OPA1OUT |
| Chân 7 | VSS — Ground reference |
| Chân 8 | RA7 — Bidirectional I/O / OPA2OUT |
| Chân 9 | RA6 — Bidirectional I/O / OPA2IN- |
| Chân 10 | RC0 — Bidirectional I/O / analog input |
| Chân 11 | RC1 — Bidirectional I/O / analog input |
| Chân 12 | RC2 — Bidirectional I/O / analog input / DAC output |
| Chân 13 | RC3 — Bidirectional I/O / analog input |
| Chân 14 | RC4 — Bidirectional I/O / analog input |
| Chân 15 | RC5 — Bidirectional I/O / analog input |
| Chân 16 | RC6 — Bidirectional I/O / TX/CK |
| Chân 17 | RC7 — Bidirectional I/O / RX/DT |
| Chân 18 | VSS — Ground reference (second) |
| Chân 19 | VDD — Positive supply (2.5V/3.3V typical) |
| Chân 20 | RB0 — Bidirectional I/O / analog input / interrupt-on-change |
| Chân 21 | RB1 — Bidirectional I/O / analog input / interrupt-on-change |
| Chân 22 | RB2 — Bidirectional I/O / analog input / interrupt-on-change |
| Chân 23 | RB3 — Bidirectional I/O / analog input / interrupt-on-change |
| Chân 24 | RB4 — Bidirectional I/O / analog input / interrupt-on-change |
| Chân 25 | RB5 — Bidirectional I/O / analog input / interrupt-on-change |
| Chân 26 | RB6 — Bidirectional I/O / ICSCLK / interrupt-on-change |
| Chân 27 | RB7 — Bidirectional I/O / ICSDAT / interrupt-on-change |
| Chân 28 | VSS — Ground reference (third) |
| Chân 29 | VDD — Positive supply (second) |
| Chân 30 | RD0 — Bidirectional I/O / PSP0 |
| Chân 31 | RD1 — Bidirectional I/O / PSP1 |
| Chân 32 | RD2 — Bidirectional I/O / PSP2 |
| Chân 33 | RD3 — Bidirectional I/O / PSP3 |
| Chân 34 | RD4 — Bidirectional I/O / PSP4 |
| Chân 35 | RD5 — Bidirectional I/O / PSP5 / PWM |
| Chân 36 | RD6 — Bidirectional I/O / PSP6 / PWM |
| Chân 37 | RD7 — Bidirectional I/O / PSP7 / PWM |
| Chân 38 | VSS — Ground reference (fourth) |
| Chân 39 | VDD — Positive supply (third) |
| Chân 40 | RE0 — Bidirectional I/O / AN5 |
| Chân 41 | RE1 — Bidirectional I/O / AN6 |
| Chân 42 | RE2 — Bidirectional I/O / AN7 |
| Chân 43 | RE3 — Bidirectional I/O / AN8 |
| Chân 44 | EP — Exposed thermal pad - tie to VSS |
Ứng dụng tiêu biểu
PIC16LF1784T-I/ML phù hợp cho 6 Áp dụngs: Low-Power IoT Sensor Node, Industrial Analog Signal Conditioning, LED Lighting Controller, Small Brushless DC Motor / Fan Controller, Battery-Powered Consumer Electronics, Precision Measurement / Sensor Calibration.
Low-Power IoT Sensor Node
The PIC16LF1784T-I/ML fits low-power IoT sensor nodes because its 1.8V minimum supply lets it run directly from a single Li-ion or two AA cells, while XLP nanoWatt sleep currents below 50 nA extend battery life across multi-year deployments. Its integrated 12-bit ADC and on-chip op-amps condition bridge sensor outputs without external analog ICs, reducing BOM cost. The 32 MHz HFINTOSC eliminates external crystals in cost-sensitive wireless sensor designs.
Được đề xuất
Industrial Analog Signal Conditioning
For industrial 4-20 mA loop or thermocouple signal conditioning, the PIC16LF1784T-I/ML's integrated 12-bit ADC (up to 14 channels), 8-bit DAC, and on-chip op-amps form a complete analog front end without external instrumentation amplifiers. The PSMC peripheral can generate isolated supplies for the analog section, while the LF 1.8V-3.6V range tolerates wide industrial supply rails after regulation. The 44-pin QFN exposes 36 I/O for multi-channel sensor arrays.
Được đề xuất
LED Lighting Controller
The PIC16LF1784T-I/ML's fourteen PWM channels with complementary outputs and high-current I/O (capable of sourcing/sinking tens of mA per pin) make it well suited for multi-channel RGB or white LED lighting controllers. The PSMC peripheral can drive constant-current stages or boost converters for high-brightness LEDs, while XLP sleep modes let battery-powered fixtures wake only when motion is detected. Programmable dead-band and phase shifting prevent shoot-through in H-bridge topologies.
Được đề xuất
Small Brushless DC Motor / Fan Controller
The PIC16LF1784T-I/ML's PSMC (programmable switch-mode controller) is purpose-built for driving the FETs in small brushless DC motors, fans, or pumps. Three independent PSMC channels allow sensorless BLDC commutation with configurable dead-time, while the integrated op-amps can be used as zero-crossing detectors for back-EMF sensing. The LF 1.8V minimum lets the MCU share a single 3.3V supply with the gate-driver logic.
Được đề xuất
Battery-Powered Consumer Electronics
Consumer devices like remote controls, wireless thermometers, and personal care appliances benefit from the PIC16LF1784T-I/ML's 1.8V minimum operation, sub-50 nA sleep current, and rapid wake-up from sleep on peripheral interrupts. The 12-bit ADC and 8-bit DAC handle touch sensing, audio cue generation, and battery voltage monitoring without external analog ICs. Tape-and-reel (T) packaging supports automated high-volume SMT assembly.
Được đề xuất
Precision Measurement / Sensor Calibration
Test, measurement, and sensor calibration gear benefit from the PIC16LF1784T-I/ML's 12-bit ADC, on-die voltage reference, and op-amp-based signal conditioning. The PSMC can synthesize programmable excitation currents for RTDs or strain gauges, while the LF low-voltage operation minimizes self-heating of the silicon die, improving measurement stability. The 32 MHz CPU runs real-time linearization and temperature compensation loops.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1784T-I/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 | PIC16LF1784-I/ML | PIC16LF1784-I/MV | PIC16LF1784T-I/MV | PIC16LF1789-I/ML | PIC16LF1786-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin QFN (ML) 8x8 mm | 44-pin QFN (ML) 8x8 mm - same | 44-pin QFN (MV) - same | 44-pin QFN (MV) - same | 44-pin QFN (ML) 8x8 mm - same | 44-pin QFN (ML) 8x8 mm - same |
| Flash Program Memory | 7 KB | 7 KB | 7 KB | 7 KB | 14 KB | 14 KB |
| RAM | 512 B | 512 B | 512 B | 512 B | 1 KB | 1 KB |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 30 |
| PSMC Channels | 3 | 3 | 3 | 3 | 3 | 0 (no PSMC) |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Bảo phân biệt quan trọng
- LF low-voltage process enables 1.8V minimum operation (vsPIC16F1784T-I/ML (F variant))
- Integrated PSMC peripheral absent on many competing 8-bit MCUs (vsPIC16LF1783-I/ML)
- On-chip 12-bit ADC + 8-bit DAC eliminates external analog ICs (vsPIC18F46K20-I/ML)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor within 3 mm of each VDD pin pair, with a low-ESR 10 uF bulk capacitor on the main VDD rail. The QFN exposed pad (pin 44) MUST be soldered to a ground pad with multiple thermal vias to a ground plane; an unsoldered EP will trigger thermal-shutdown at modest loads due to the 31 C/W typical theta_JA. Keep the LFINTOSC active for sleep-mode accuracy but switch to HFINTOSC for full 32 MHz operation.
Do not leave unused I/O pins floating - configure them as outputs driving low, or set them as inputs with weak pull-ups enabled. Floating digital inputs in CMOS can draw tens of microampere per pin and dominate total quiescent current, defeating the XLP nanoWatt sleep claim (which assumes <50 nA total). Avoid the MCLR pin (RA3/RA5 on some PIC16LF parts) by using internal MCLR if not required for in-circuit serial programming.
The 44-pin QFN (ML) is 8x8 mm with 0.65 mm pitch and an exposed thermal pad. Use 0.4 mm-wide traces between pads and route signals on inner layers to escape the dense perimeter; ensure the central EP has at least 9 thermal vias (0.3 mm drill, 0.6 mm pitch) tying EP to ground plane. Place analog signals (OPA inputs, VREF+ cap) away from PWM outputs to avoid coupled switching noise on the 12-bit ADC measurements.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Lead-free reflow compatible per QFN ML package. Not AEC-Q100 qualified - choose PIC16LF1784T-E/ML or PIC16LF1784T-I/ML automotive test report for automotive applications. Halogen-free status not explicitly stated in web data - marked unknown.