PIC16LF1619T-I/ML - 8-Bit XLP MCU, 14KB Flash, 20-QFN | Microchip
MPN: PIC16LF1619T-I/ML ✓ Hoạt độngPIC16LF1619T-I/ML Tóm tắt
A PIC microcontroller is a compact, self-contained computer-on-a-chip built around a Harvard-architecture RISC core, integrating CPU, Flash, RAM, EEPROM, and a rich set of peripherals (ADC, PWM, timers, communications) into a single IC. PIC16 devices occupy the mid-range tier of Microchip's 8-bit portfolio: more capable than baseline PIC10/PIC12, simpler and lower-cost than PIC18/PIC24. They are widely used in consumer appliances, sensor nodes, motor control, and human-machine interface (HMI) subsystems where deterministic 8-bit performance and ultra-low sleep current are required.
Key features of the PIC16LF1619T-I/ML include the 32 MHz internal oscillator, a 10-bit ADC with multiple channel options, Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG) for half-bridge/half-H control, Numerically Controlled Oscillator (NCO) for precision frequency synthesis, Zero-Cross Detection (ZCD) for AC line sensing, and Peripheral Pin Select (PPS) for flexible I/O mapping. The 'Functional Safety' (FuSa) family of the F-variant adds CRC/Scan, windowed watchdog, and hardware limit timers, which the LF variant does not include.
The LF core uses a 14-bit instruction word optimized for code density and a 2-stage pipeline, allowing deterministic interrupt response around 125 ns at 32 MHz. The XLP deep-sleep current is in the nanoampere range, suiting battery-backed designs. The 20-QFN (4x4) exposed-pad package provides a low thermal resistance path and a compact footprint, while the part operates over the industrial -40C to +85C range and is rated at 1.8V-3.6V VDD.
Typical applications include low-power IoT sensor nodes, white-goods and small-appliance control, LED lighting controllers, fan/pump motor control loops, and battery-powered remote controls. The combination of XLP sleep current, 32 MHz performance, and CLC/NCO peripherals makes the LF1619 well-suited to designs that need analog signal conditioning or precision timing without a separate DSP.
When designing with this device, observe the VDD brown-out and power-on reset sequencing, place the 0.1 uF VDD decoupling capacitor as close to the IC as possible, and expose the EP to a continuous ground copper pour for thermal and electrical performance. For migration to the F-variant, verify that any code paths using FuSa peripherals are re-validated, since those blocks are absent on the LF.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, giving procurement and firmware engineers a single source for sourcing, replacement, and design-in decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1619T-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 PIC16LF1619T-I/ML (cùng hình factor và footprint) — khác nhau ở ADC, Core Architecture, Operating Temperature, Package, Program Memory (Flash).
PIC16LF1619-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1619T-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1619-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1619T-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1559T-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF15376-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1619T-I/ML Tỷ lệ tối đa & tính chất điện
| Product Family | PIC16 (mid-range 8-bit) |
| Core Architecture | PIC16 enhanced 8-bit RISC, 14-bit instruction word |
| Maximum CPU Speed | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial, 'I' grade) |
| Hộp | 20-QFN (4x4 mm) with exposed pad |
| Số chân | 20 |
| ADC | 10-bit, multi-channel |
| Low-Power Branding | eXtreme Low Power (XLP) |
| Special Peripherals | CLC, CWG, NCO, ZCD, PPS |
| Kiểu lắp đặt | Surface Mount |
| Packaging Format | Tape & Reel ('T' suffix) |
| Trạng thái RoHS | Compliant |
| Functional Safety (FuSa) | Not included on LF variant |
Cấu hình chân PIC16LF1619T-I/ML
| Chân 1 | RA2 — Bidirectional I/O / analog input |
| Chân 2 | RA3 — Bidirectional I/O / analog input |
| Chân 3 | RA4 — Bidirectional I/O / analog input |
| Chân 4 | RA5 — Bidirectional I/O / analog input |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RA7 — Bidirectional I/O |
| Chân 7 | RA6 — Bidirectional I/O / oscillator |
| Chân 8 | RC0 — Bidirectional I/O |
| Chân 9 | RC1 — Bidirectional I/O |
| Chân 10 | RC2 — Bidirectional I/O |
| Chân 11 | RC3 — Bidirectional I/O |
| Chân 12 | RC4 — Bidirectional I/O |
| Chân 13 | RC5 — Bidirectional I/O |
| Chân 14 | RC6 — Bidirectional I/O |
| Chân 15 | RC7 — Bidirectional I/O |
| Chân 16 | RB7 — Bidirectional I/O |
| Chân 17 | RB6 — Bidirectional I/O / ICD |
| Chân 18 | RB5 — Bidirectional I/O / analog |
| Chân 19 | RB4 — Bidirectional I/O / analog |
| Chân 20 | VDD — Positive supply (1.8V-3.6V) |
Ứng dụng tiêu biểu
PIC16LF1619T-I/ML phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Node, White Goods and Small Appliance Control, LED Lighting Controller, Small Motor and Fan Control, Consumer Remote Control (RF IR), Industrial Sensor Transmitter (4-20mA / 0-10V).
Battery-Powered IoT Sensor Node
The PIC16LF1619T-I/ML fits battery-powered IoT sensor nodes because its 1.8-3.6V VDD range accepts a direct 2xAA or coin-cell supply, and the XLP deep-sleep current is in the nanoampere range per the PIC16(L)F161X datasheet, so the node can sleep between measurements without draining the cell. The 10-bit ADC and Configurable Logic Cells (CLC) on the LF1619 let the firmware condition analog sensor outputs (temperature, humidity, PIR) without an external op-amp or logic gate, shrinking the BOM. The 14KB Flash holds a small protocol stack (Modbus RTU, custom sub-GHz driver, or simple BLE HCI bridge) and the 1KB RAM is sufficient for queuing 10-20 sensor samples between transmissions. Compared with a 32-bit Cortex-M0+ part, the PIC16 delivers deterministic interrupt latency around 125 ns at 32MHz and lower cost in low-volume production.
Được đề xuất
White Goods and Small Appliance Control
The PIC16LF1619T-I/ML is a strong fit for white-goods and small-appliance control boards, where the appliance is mains-powered and the MCU runs from a 3.3V or 5V rail. The 32MHz PIC16 core provides 8 MIPS, enough for PID temperature loops, button-debounce state machines, and UART links to a UI display. The Complementary Waveform Generator (CWG) and Numerically Controlled Oscillator (NCO) peripherals simplify brushless-DC and universal-motor control loops used in blenders, washing-machine pumps, and small fans. The 20-QFN (4x4) footprint keeps the MCU footprint under 16 mm^2, leaving room for the power-supply and relay-driver circuitry on the same PCB. The wide -40C to +85C industrial range survives the cabinet temperature swings found in ovens and dryers.
Được đề xuất
LED Lighting Controller
The PIC16LF1619T-I/ML suits dimmable LED lighting controllers because the CWG peripheral can generate 16-bit PWM at low frequencies for LED dimming, and the NCO can synthesize precise dim-to-warm or color-mixing dither patterns without burdening the CPU. The 10-bit ADC samples a 0-3.3V analog dim input or a digital potentiometer wiper, while the EUSART handles DMX-512 or DALI bridge logic. The 1.8-3.6V VDD range matches a buck-converter output rail, removing the need for an LDO downstream of the switching stage. With 14KB Flash, the firmware can store multiple lighting scenes and a simple non-volatile trim, and the 1KB RAM is sufficient for frame buffers in single-channel or 3-channel RGBW applications. Compared with a 5V MCU, the LF1619 dissipates less power across the linear regulator and extends the product's thermally-constrained bulb lifetime.
Được đề xuất
Small Motor and Fan Control
The PIC16LF1619T-I/ML is well matched to small DC-motor and fan control loops. The CWG and NCO peripherals generate complementary PWM with dead-band control, eliminating the external gate-driver logic that a discrete PIC10/PIC12 design would require. The ZCD (Zero-Cross Detect) input lets the firmware sense AC-line zero crossings for triac-firing or PFC control, with a hardware trigger that wakes the MCU from sleep. The 32MHz core and 8 MIPS performance are sufficient to run a 1kHz commutation loop and a UART link to a host controller simultaneously. The 20-QFN (4x4) package reduces board area in space-constrained 40mm or 50mm fan housings, and the -40C to +85C industrial rating covers under-hood and outdoor-ventilation use cases.
Được đề xuất
Consumer Remote Control (RF IR)
The PIC16LF1619T-I/ML fits consumer remote controls because the XLP deep-sleep current is in the nanoampere range, so a coin-cell-powered remote can sit on a shelf for years. The CWG peripheral drives an IR LED with a 38kHz carrier at near-50% duty, while the INT/IC peripherals decode the return signal. The PPS block routes the UART, SPI, or I2C pins to any digital I/O, simplifying the PCB layout of a button-matrix scan plus an OLED display. The 14KB Flash holds a manufacturer-specific IR protocol table (RC5, NEC, SIRC) and the 1KB RAM is enough for a 32-frame button-event buffer. The 20-QFN (4x4) package keeps the remote slim and light versus a 28- or 40-pin alternative.
Được đề xuất
Industrial Sensor Transmitter (4-20mA / 0-10V)
The PIC16LF1619T-I/ML is appropriate for industrial 4-20mA and 0-10V sensor transmitters where the sensor is loop-powered at 24V and the MCU runs from a local 3.3V LDO. The 10-bit ADC with internal reference and PGA reads bridge or RTD sensors at high accuracy, while the CLC builds a sigma-delta modulator for a lower-cost 16-bit effective reading. The EUSART drives an RS-485 link to a PLC or to a HMI display. The -40C to +85C industrial range covers outdoor and cabinet-mounted transmitters, and the 14KB Flash is sufficient for calibration tables and linearization routines. The 20-QFN (4x4) package fits inside a standard industrial transmitter housing, and the exposed pad provides the thermal dissipation needed for Class A performance over the full industrial temperature range.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1619T-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 | PIC16F1619T-I/ML | PIC16F1619-I/ML | PIC16LF1559T-I/ML | PIC16LF15376-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-QFN (4x4) with EP | 20-QFN (4x4) - same | 20-QFN (4x4) - same | 20-QFN (4x4) - same | 20-QFN (4x4) - same | 20-QFN (4x4) - same |
| Flash Memory | 14 KB | 14 KB | 14 KB | 14 KB | 14 KB | 28 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 2 KB |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage (VDD) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Functional Safety (FuSa) Peripherals | No (LF variant) | No | Yes (CRC/Scan, WWDT, HLT) | Yes | No | No |
| 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 |
| Packaging Format | Tape & Reel | Tube | Tape & Reel | Tube | Tape & Reel | Tube |
Bảo phân biệt quan trọng
- Tape & Reel packaging format with full LF-spec low-voltage operation (vsPIC16LF1619-I/ML)
- Lower-voltage VDD range (1.8V-3.6V) for direct battery operation (vsPIC16F1619T-I/ML)
- Smaller Flash footprint for lower-power sensor nodes (vsPIC16LF15376-I/ML)
Ghi chú thiết kế
Place a 0.1 uF X7R ceramic decoupling capacitor within 3 mm of the VDD pin (pin 20) and a 10 uF bulk capacitor on the same 3.3V rail, per the PIC16(L)F161X datasheet 'Power Supply Recommendations' section. The LF variant's BOR (Brown-Out Reset) triggers near 1.7V - verify that downstream rails do not collapse when VDD dips, otherwise configure BOR with PWRT enabled. The exposed pad (EP) on the 20-QFN (4x4) must be soldered to a continuous ground copper pour to meet the package's thermal resistance spec.
Estimated: at 32 MHz, 3.3V VDD, the PIC16LF1619T-I/ML core current is around 4 mA (per XLP datasheet curves), so power dissipation is approximately 13 mW. The 20-QFN (4x4) with EP on a 1 oz copper pour of 1 square inch keeps theta_JA below 50 C/W, so junction temperature rise above 25C ambient is under 1C - well within the 85C industrial ceiling. Forced-air or heatsink is not required; however, soldering the EP to the ground pour is mandatory.
Do not program the PIC16LF1619T-I/ML above 3.6V VDD - the LF F-process variant has lower Flash endurance and may exhibit data retention loss above the abs-max. The PPS peripheral pin select registers lock on first write after a POR - commit all PPS assignments in the init routine, not at runtime, or you will need a power cycle. The MSSP (SPI/I2C) module pins default to analog mode on reset; clear the corresponding ANSEL bits before bringing up the bus, otherwise the lines will not toggle. Finally, the LF variant does NOT include the FuSa peripherals of the F - if your code paths call CRC, WWDT, or HLT, port to the PIC16F1619T-I/ML.
Use a 4-layer PCB stack-up with a dedicated ground plane under the 20-QFN (4x4) exposed pad. Keep the ICSP/ICD pins (RB6/RB7) accessible with test points or header pads for in-circuit programming. Route the 32 kHz low-power crystal (if used) with short traces and a guard ring to minimize stray capacitance that can pull the oscillator off-frequency. Keep ADC analog traces (RA2-RA5) away from PWM outputs (RC1/RC2) to avoid digital switching noise coupling into the analog input.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified - the LF1619 targets industrial and consumer applications; the automotive PIC16F1619 family is the AEC-Q100 path. Lead-free / matte-tin finish confirmed. Halogen-free status not explicitly stated in verified data; consult Microchip for confirmation. Conflict-minerals declaration available from Microchip compliance portal.
