PIC16LF1618-I/ML - 8-Bit 32MHz XLP MCU, 7KB Flash | Microchip
MPN: PIC16LF1618-I/ML ✓ Hoạt độngPIC16LF1618-I/ML Tóm tắt
An 8-bit PIC microcontroller (MCU) is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle, integrating program Flash, data SRAM, data EEPROM, peripherals, and I/O on a single die. The PIC16 core is the mid-range tier of Microchip's 8-bit portfolio, sitting between the baseline PIC10/12/16 and the enhanced PIC18 families, and is widely used for sensor interfacing, simple motor control, and low-power IoT edge nodes. The PIC16LF1618 specifically belongs to the PIC16(L)F161X family, which targets closed-loop control of small motors, lighting, and general-purpose embedded designs.
Key features of this device include a 10-bit A/D converter with up to 12 channels, a 24-bit Signal Measurement Timer (SMT) for precision timing, Capture/Compare/PWM (CCP) modules, Zero Cross Detect (ZCD) for AC line control, and a hardware Peripheral Pin Select (PPS) that remaps digital peripherals to any I/O. The XLP sleep current is specified down to sub-µA levels, with multiple power-managed operating modes. The QFN-20 (4x4) package provides a small footprint suited to space-constrained designs while exposing the thermal pad to the PCB for low thermal resistance.
Typical applications include low-power IoT sensor nodes, fan/blower motor control, AC zero-crossing solid-state relay (SSR) control, LED driver controllers, battery-powered consumer appliances, and home-automation peripherals. The 10-bit ADC plus 24-bit SMT combination also makes it suitable for energy-metering and sensor-signal-conditioning front-ends.
When designing with the PIC16LF1618-I/ML, ensure the decoupling network (typically 100 nF plus 1 µF) is placed within a few millimetres of VDD/VSS pins, and stitch the exposed pad (EP) to a continuous ground plane for thermal dissipation and electrical return. Configure the PPS only after committing peripheral-to-pin assignments because remapping occurs at runtime and conflicts will silently disable the affected peripheral.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1618-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 PIC16LF1618-I/ML (cùng hình factor và footprint) — khác nhau ở ADC, Package, Program Memory (Flash), Core Architecture, I/O Pins.
PIC16LF1619-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1618-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1618T-I/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1518-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1554-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1454-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1618-I/ML Tỷ lệ tối đa & tính chất điện
| Core | PIC16 8-bit RISC |
| CPU Speed (Max) | 32 MHz |
| Instruction Set Architecture | Harvard, RISC, 14-bit instruction word |
| Program Memory (Flash) | 7 KB (4K x 14) |
| Data SRAM | 512 bytes |
| Data EEPROM | 512 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V |
| ADC | 10-bit, multiple channels |
| Timers | Includes 24-bit Signal Measurement Timer (SMT) |
| PWM / CCP | CCP modules + enhanced PWM |
| Zero Cross Detect (ZCD) | Yes (AC line control) |
| Peripheral Pin Select (PPS) | Yes |
| Hộp | 20-pin QFN (4x4 mm) with Exposed Pad |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Low-Power Technology | XLP (eXtreme Low Power) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16LF1618-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 / ICSPCLK |
| Chân 6 | RA0 — Bidirectional I/O / analog input / ICSPDAT |
| Chân 7 | VSS — Ground reference |
| Chân 8 | RA7 — Bidirectional I/O / DAC / analog input |
| Chân 9 | RA6 — Bidirectional I/O / analog input |
| Chân 10 | RC5 — Bidirectional I/O / PWM output |
| Chân 11 | RC4 — Bidirectional I/O / PWM output |
| Chân 12 | RC3 — Bidirectional I/O / analog input / SCL |
| Chân 13 | RC2 — Bidirectional I/O / analog input |
| Chân 14 | RC1 — Bidirectional I/O / analog input / SDA |
| Chân 15 | RC0 — Bidirectional I/O / analog input |
| Chân 16 | RB7 — Bidirectional I/O |
| Chân 17 | RB6 — Bidirectional I/O / ICSPCLK |
| Chân 18 | RB5 — Bidirectional I/O |
| Chân 19 | RB4 — Bidirectional I/O |
| Chân 20 | VDD — Positive supply voltage |
Ứng dụng tiêu biểu
PIC16LF1618-I/ML phù hợp cho 7 Áp dụngs: Low-Power IoT Sensor Nodes, Small BLDC / DC Motor Control, AC Zero-Cross Solid-State Relay, LED Lighting Controllers, Battery-Powered Consumer Appliances, Home Automation / Smart Home Sensors, Energy Metering Front-End.
Low-Power IoT Sensor Nodes
The PIC16LF1618-I/ML's XLP technology delivers sub-µA sleep current at 1.8 V-3.6 V, making it well-suited for coin-cell or energy-harvesting sensor nodes. Its 7 KB Flash accommodates BLE/Zigbee driver stacks while the 10-bit ADC reads thermistor, photodiode, or battery-voltage sense signals. Pair with a sleep-capable radio and configure the RTC interrupt to wake the MCU every few seconds for periodic readings, then return to deep sleep - preserving years of battery life on a single CR2032 cell.
Được đề xuất
Small BLDC / DC Motor Control
With ECCP PWM, 24-bit SMT, and 10-bit ADC, the PIC16LF1618-I/ML can drive small brushless DC or brushed DC motors in fans, blowers, and pumps. The ZCD input simplifies AC-line-synchronous start, while SMT captures Hall-sensor or back-EMF edges at sub-microsecond precision. The wide-voltage core tolerates noisy motor supplies, and 32 MHz throughput leaves headroom for closed-loop PID math on each PWM cycle.
Được đề xuất
AC Zero-Cross Solid-State Relay
The integrated Zero Cross Detect (ZCD) peripheral makes PIC16LF1618-I/ML an excellent fit for AC-line SSR control, dimmers, and motor soft-start circuits. The ZCD hardware triggers an interrupt at every AC zero crossing without CPU overhead, allowing the firmware to gate a TRIAC or MOSFET with minimal EMI. The 1.8 V-3.6 V core simplifies interface to logic-level opto-isolated gate drivers used for safety isolation across the AC barrier.
Được đề xuất
LED Lighting Controllers
The PIC16LF1618-I/ML's ECCP PWM modules can drive multiple LED channels with hardware-generated PWM, freeing the CPU for color-mixing or DMX/RDM protocol parsing. The 10-bit ADC reads ambient-light sensors for daylight harvesting and feedback loops. XLP sleep mode enables standby power below 100 µA for compliance with energy-efficiency regulations like Energy Star and EU Ecodesign lighting directives.
Được đề xuất
Battery-Powered Consumer Appliances
Cordless toothbrushes, shavers, and personal-care appliances benefit from PIC16LF1618-I/ML's 1.8 V-3.6 V operation directly from a Li-ion cell. The 7 KB Flash handles motor-control firmware plus user-interface state machines, and the XLP sleep mode extends standby shelf-life past 12 months. The 20-QFN (4x4 mm) package fits inside slim ergonomic enclosures, and PPS allows flexible pinout routing around the industrial design.
Được đề xuất
Home Automation / Smart Home Sensors
PIR occupancy, door/window contact, leak-detection, and air-quality sensors in home automation networks pair naturally with PIC16LF1618-I/ML. Its wide voltage range accepts 2x AAA or 2x AA battery packs, while XLP sleep plus interrupt-driven wake minimizes average current below 10 µA for multi-year battery life. UART, SPI, and I2C peripherals connect to common sub-GHz or BLE modules, and the 7 KB Flash holds application firmware plus a custom RF protocol stack.
Được đề xuất
Energy Metering Front-End
The 24-bit Signal Measurement Timer (SMT) enables precision pulse counting for utility-meter and sub-meter designs using PIC16LF1618-I/ML. Combined with the 10-bit ADC for voltage and current sensing, the MCU can implement single-phase energy measurement with class-1 accuracy. EEPROM stores calibration coefficients and tamper logs across decades of deployment, and the 20-QFN form factor drops onto compact metering PCBs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1618-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 | PIC16LF1619-I/ML | PIC16F1618-I/ML | PIC16LF1618T-I/ML | PIC16LF1518-I/ML | PIC16LF1554-I/ML | PIC16LF1454-I/ML |
|---|---|---|---|---|---|---|---|
| Package | 20-QFN (ML) 4x4 mm | 20-QFN (ML) - same | 20-QFN (ML) - same | 20-QFN (ML) - same | 20-QFN (ML) - same | 20-QFN (ML) - same | 20-QFN (ML) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 2.3 V - 5.5 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 5.5 V |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 20 MHz | 32 MHz | 48 MHz |
| Flash Memory | 7 KB (4K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) | 16 KB | 3.5 KB | 7 KB |
| SRAM | 512 bytes | 512 bytes | 512 bytes | 512 bytes | 1 KB | 256 bytes | 1 KB |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Zero Cross Detect (ZCD) | Yes | Yes | Yes | Yes | No | No | No |
| Signal Measurement Timer (24-bit SMT) | Yes | Yes | Yes | Yes | No | No | No |
| USB Support | No | No | No | No | No | No | Yes |
Bảo phân biệt quan trọng
- Integrated Zero Cross Detect (ZCD) peripheral (vsPIC16LF1518-I/ML)
- 24-bit Signal Measurement Timer (SMT) (vsPIC16LF1554-I/ML)
- Wide voltage range 1.8 V - 3.6 V (LF variant) (vsPIC16F1618-I/ML)
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor within 2-3 mm of the VDD pin (pin 20) and a bulk 1-10 µF capacitor on the same node. The 1.8 V-3.6 V core draws tens of µA in active mode at 32 MHz, but XLP sleep current drops below 1 µA when properly configured. Configure the BOR (Brown-Out Reset) module to the minimum system voltage to prevent Flash corruption during power-down events.
Estimated: at maximum operating voltage 3.6 V and 32 MHz active mode, the PIC16LF1618-I/ML draws approximately 6-8 mA, dissipating under 30 mW which is negligible. The 20-QFN package with exposed pad (EP) soldered to a continuous ground plane achieves theta_JA under 40 C/W - typically no heatsink is required. Always stitch multiple thermal vias through the EP to the inner ground plane for production designs.
The exposed thermal pad (EP) of the 20-QFN must be soldered to a copper pour on the PCB, with a recommended via-array of 5-9 thermal vias to inner ground layers for heat sinking and ground return. Route PPS-mapped signals on inner layers to avoid pin-side congestion. Keep the HFINTOSC-sensitive traces short; the internal oscillator is reasonably noise-tolerant but crystal-accurate timing on UART/I2C benefits from a guarded ground around the MCU.
Do not skip the PPS unlock sequence - assignments are silently ignored if the IOLOCK bit is set. The ZCD pin must be calibrated per the datasheet; uncalibrated ZCD thresholds shift with temperature and may misfire. When migrating from PIC16F1618 to PIC16LF1618, verify the lower voltage limit (1.8 V vs 2.3 V) does not violate brown-out or ADC reference specifications. Always tie unused I/O pins to defined logic levels to minimize sleep current leakage.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page and DigiKey listing. Not AEC-Q100 qualified - for automotive designs choose a PIC16F1618-E/ML or PIC16F1618T-I/ML automotive-grade variant. Halogen-free per Microchip package materials declaration.
