PIC16LF1519-I/PT - 28KB Flash 8-bit MCU, 20MHz, TQFP-44 | Microchip
MPN: PIC16LF1519-I/PT ✓ Hoạt độngPIC16LF1519-I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals on one die; it sits within the broader taxonomy of microcontroller -> embedded processor -> semiconductor. PIC16F1xxx family MCUs from Microchip are popular for low-power, cost-sensitive embedded control where deterministic interrupt response, simple peripherals, and long product lifecycles outweigh the need for higher MIPS.
Key features include nanoWatt XLP sleep current as low as sub-uA in deep sleep, multiple low-power modes (Sleep, Idle, Doze), an integrated 10-bit ADC with up to 28 channels, Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART), two MSSP (SPI/I2C) modules, and 17 I/O pins with interrupt-on-change support. The 28KB Flash supports self-programming for bootloader and field updates.
The architecture uses a 14-bit instruction word with a hardware multiplier, eight-level hardware stack, and a 31-instruction set optimized for C and assembly development. The device supports in-circuit debugging via ICD 3 / PICkit 4 and programming with the MPLAB X IDE and XC8 compiler, giving engineers a low-cost, mature toolchain.
Typical applications include IoT sensor nodes, battery-powered instrumentation, consumer electronics human-interface controllers, HVAC control boards, automotive body and accessory subsystems, and industrial sensor conditioning. Designers typically pair the PIC16LF1519 with low-power wireless modules, sensor front-ends, and small LCDs.
When designing with this MCU, budget for the on-chip 10-bit ADC and consider external reference ICs where absolute accuracy matters. Use the brown-out reset and watchdog timer for unattended deployments to recover from supply or code-flow faults.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1519-I/PT — 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 PIC16LF1519-I/PT (cùng hình factor và footprint) — khác nhau ở I/O Pins, Package, Core Architecture, Operating Temperature, MSL Level.
PIC16F1519-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1519-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1519-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1518-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1517-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1519-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16 Enhanced Mid-Range 8-bit |
| Program Memory (Flash) | 28 KB (16K x 14) |
| SRAM | 1024 bytes |
| Tần số xung maksimum | 20 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 36 (per 44-pin TQFP) |
| ADC | 10-bit, up to 28 channels |
| Timers | 8-bit and 16-bit (multiple) |
| Communication | 1x EUSART, 2x MSSP (SPI/I2C) |
| Low-Power Technology | nanoWatt XLP |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial) |
| Hộp | 44-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (per JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant |
| Debug Interface | ICSP (ICD/PICkit) |
Cấu hình chân PIC16LF1519-I/PT
| Chân 1 | MCLR/RE3 — Master Clear (reset) input or digital input only on PORTE bit 3 |
| Chân 2 | RA0 — PORTA bit 0 / analog input |
| Chân 3 | RA1 — PORTA bit 1 / analog input |
| Chân 4 | RA2 — PORTA bit 2 / analog input |
| Chân 5 | RA3 — PORTA bit 3 / analog input |
| Chân 6 | RA4 — PORTA bit 4 / analog input |
| Chân 7 | RA5 — PORTA bit 5 / analog input |
| Chân 8 | RA6 — PORTA bit 6 / analog input |
| Chân 9 | RA7 — PORTA bit 7 / analog input |
| Chân 10 | VSS — Ground reference |
| Chân 11 | VDD — Positive supply voltage (1.8 V - 3.6 V) |
| Chân 12 | RB0 — PORTB bit 0 / interrupt-on-change |
| Chân 13 | RB1 — PORTB bit 1 / interrupt-on-change |
| Chân 14 | RB2 — PORTB bit 2 / interrupt-on-change |
| Chân 15 | RB3 — PORTB bit 3 / interrupt-on-change |
| Chân 16 | RB4 — PORTB bit 4 / interrupt-on-change |
| Chân 17 | RB5 — PORTB bit 5 / interrupt-on-change |
| Chân 18 | RB6 — PORTB bit 6 / interrupt-on-change / ICSP CLK |
| Chân 19 | RB7 — PORTB bit 7 / interrupt-on-change / ICSP DAT |
| Chân 20 | VSS — Ground reference |
| Chân 21 | VDD — Positive supply voltage (1.8 V - 3.6 V) |
| Chân 22 | RC0 — PORTC bit 0 / analog input |
| Chân 23 | RC1 — PORTC bit 1 / analog input |
| Chân 24 | RC2 — PORTC bit 2 / analog input |
| Chân 25 | RC3 — PORTC bit 3 / analog input |
| Chân 26 | RC4 — PORTC bit 4 / analog input |
| Chân 27 | RC5 — PORTC bit 5 / analog input |
| Chân 28 | RC6 — PORTC bit 6 / analog input |
| Chân 29 | RC7 — PORTC bit 7 / analog input |
| Chân 30 | VSS — Ground reference |
| Chân 31 | VDD — Positive supply voltage (1.8 V - 3.6 V) |
| Chân 32 | RD0 — PORTD bit 0 |
| Chân 33 | RD1 — PORTD bit 1 |
| Chân 34 | RD2 — PORTD bit 2 |
| Chân 35 | RD3 — PORTD bit 3 |
| Chân 36 | RD4 — PORTD bit 4 |
| Chân 37 | RD5 — PORTD bit 5 |
| Chân 38 | RD6 — PORTD bit 6 |
| Chân 39 | RD7 — PORTD bit 7 |
| Chân 40 | VSS — Ground reference |
| Chân 41 | VDD — Positive supply voltage (1.8 V - 3.6 V) |
| Chân 42 | RE0 — PORTE bit 0 / analog input |
| Chân 43 | RE1 — PORTE bit 1 / analog input |
| Chân 44 | RE2 — PORTE bit 2 / analog input |
Ứng dụng tiêu biểu
PIC16LF1519-I/PT phù hợp cho 7 Áp dụngs: Battery-Powered IoT Sensor Node, Consumer Electronics HMI Controller, HVAC Control Board, Automotive Body and Accessory Subsystem, Industrial Sensor Conditioning Module, Portable Medical Monitoring Accessory, Educational and Hobby Embedded Platform.
Battery-Powered IoT Sensor Node
The PIC16LF1519-I/PT fits battery-powered IoT sensor nodes because its 1.8-3.6 V supply aligns directly with single-cell alkaline, NiMH, or CR2032 chemistries, while nanoWatt XLP delivers sub-microampere sleep current to extend battery life into multi-year windows. The 10-bit ADC scans temperature, humidity, or motion sensors at low duty cycle, and the EUSART drives a low-power wireless module such as a sub-GHz transceiver. Designers place the MCU between the battery and sensor front-end, with brown-out reset and watchdog timer guarding unattended deployments. Unlike higher-MIPS Cortex-M parts, the 8-bit core keeps active current in the sub-mA range for duty-cycled wake/sleep sequences.
Được đề xuất
Consumer Electronics HMI Controller
The PIC16LF1519-I/PT is well-suited to consumer HMI controllers, where 36 I/O pins drive keypads, LED indicators, rotary encoders, and segment LCDs without external glue logic. The 28 KB Flash stores state-machine code and small UI protocols, while the two MSSP peripherals handle I2C sensor expansion and SPI-driven LED drivers. Designers run the MCU at 3.3 V from a regulated rail and leverage the 20 MHz instruction rate to debounce inputs and refresh displays without visible lag. Compared to a discrete logic implementation, this single-chip approach cuts BOM cost and PCB area while adding firmware-driven flexibility.
Được đề xuất
HVAC Control Board
The PIC16LF1519-I/PT suits HVAC control boards where multiple analog sensors (temperature, humidity, pressure) feed the 10-bit ADC while relay drivers switch fans, compressors, and valve actuators. The 1.8-3.6 V range plus 5 V-tolerant I/O pins (with proper level shifting) simplify interface to industrial 24 V control boards via optocouplers. Designers assign one MSSP to a Modbus RTU slave over RS-485 for building-automation integration and the other to an SPI EEPROM for logging setpoints. The industrial temperature grade (-40 C to +85 C) and nanoWatt XLP low-power modes keep idle quiescent current low during standby.
Được đề xuất
Automotive Body and Accessory Subsystem
The PIC16LF1519-I/PT powers automotive body and accessory subsystems such as interior lighting, mirror controllers, and seat-position modules where 8-bit performance and low cost outweigh DSP requirements. The 28 KB Flash holds LIN-node firmware for slave communication with the body controller, and the 10-bit ADC reads current-sense amplifiers for short-circuit detection on LED strings. Designers run the MCU from a 12 V-derived 3.3 V rail and use the EUSART for LIN bus signaling at 19.2 kbps. For AEC-Q100 qualified designs in the same TQFP-44 footprint, Microchip offers the PIC16F1519-I/PT automotive-grade equivalent. The wide supply tolerance and watchdog timer support reliable unattended operation.
Được đề xuất
Industrial Sensor Conditioning Module
The PIC16LF1519-I/PT serves industrial sensor-conditioning modules that digitize analog signals from strain gauges, load cells, or process transmitters and publish the result over Modbus RTU or 4-20 mA loops. The 10-bit ADC handles inputs from instrumentation front-ends, while the EUSART drives an RS-485 transceiver for multi-drop industrial networks. Designers exploit the 1.8-3.6 V range to power directly from a 24 V industrial bus via a small switching regulator, and the nanoWat XLP modes minimize quiescent draw during standby. Compared to discrete ADC-plus-MCU designs, this single-chip approach reduces component count and improves long-term reliability.
Được đề xuất
Portable Medical Monitoring Accessory
The PIC16LF1519-I/PT fits portable medical monitoring accessories (pulse-oximeter cables, digital thermometer bases, low-cost spirometer dongles) that pair with a host tablet or phone over USB or Bluetooth. The 28 KB Flash stores calibration tables and small protocol handlers, and the nanoWatt XLP modes extend battery life during continuous monitoring sessions. The 10-bit ADC reads analog front-ends from photodiode or thermistor bridges, while the MSSP peripherals drive SPI displays or I2C health-sensor ICs. Designers run the MCU at 3.0-3.3 V from a rechargeable Li-ion cell and use brown-out reset to protect against deep-discharge conditions.
Được đề xuất
Educational and Hobby Embedded Platform
The PIC16LF1519-I/PT is well-suited for educational embedded platforms and hobbyist development kits thanks to its simple 8-bit architecture, low-cost PICkit 4 debugger, and free MPLAB X IDE with XC8 compiler. The 28 KB Flash and 1024 B SRAM accommodate introductory C projects including state machines, interrupt-driven timers, and PWM motor control, while the 36 I/O pins expose enough peripherals for breadboard experiments. The 1.8-3.6 V range supports direct 3.3 V logic without level shifters, and the TQFP-44 package breaks out to standard 0.1 inch headers on popular development boards. Compared to ARM-based boards, this part lowers the learning curve for first-time embedded developers.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1519-I/PT — 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 | PIC16F1519-I/PT | PIC16LF1519-E/PT | PIC16LF1518-I/PT | PIC16LF1517-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same |
| Flash Memory | 28 KB | 28 KB | 28 KB | 16 KB | 8 KB |
| SRAM | 1024 B | 1024 B | 1024 B | 1024 B | 512 B |
| Operating Voltage | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Max Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C | -40 C to +125 C (extended) | -40 C to +85 C | -40 C to +85 C |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP |
| Approx Unit Price (USD, qty 1) | 2.41 | 2.45 | 2.55 | 2.20 | 1.95 |
Bảo phân biệt quan trọng
- Lowest voltage operation in the family (vsPIC16F1519-I/PT)
- Highest Flash density in the LF151x TQFP family (vsPIC16LF1518-I/PT)
- Industrial-grade temperature option vs extended-grade (vsPIC16LF1519-E/PT)
Ghi chú thiết kế
Estimated: Decouple every VDD/VSS pair with a 100 nF ceramic placed within 5 mm of the pin. For battery-powered designs, add a 10 uF bulk capacitor near the MCU to absorb transmit-current transients from a co-located wireless module. The PIC16LF1519-I/PT draws typical sleep current of ~50 nA at 1.8 V with WDT disabled; verify the chosen LDO has quiescent current below 1 uA to preserve battery life.
TQFP-44 has 0.8 mm pitch and requires careful land pattern design per IPC-7351. Place the ICSP pins (RB6/RB7) on accessible board-edge or test-pad locations to enable in-circuit debugging without removing the MCU. Keep analog traces (PORTA/PORTE) short and isolated from switching nodes; use a ground pour under the MCU and a single-point analog/digital ground connection near the MCU's VSS pin to minimize ADC noise coupling.
Do not exceed 3.6 V on VDD - the LF variant is NOT 5 V tolerant. Always configure the brown-out reset to a threshold below the minimum operating VDD to prevent code execution at low voltage. When migrating firmware from PIC16F877 to PIC16LF1519, verify peripheral register maps because the enhanced mid-range core uses different SFR addresses than legacy parts. The MSSP peripheral requires configuration of both control registers before SPI or I2C transactions.
For designs using the 10-bit ADC at high source impedances (>10 kohm), add an external buffer op-amp (such as MCP6001) to prevent ADC sampling-capacitor charge sharing from degrading accuracy. Use the dedicated VREF+ pin with a low-noise reference for ratiometric measurements rather than VDD. Keep switching nodes (PWM outputs, relay drivers) physically separated from analog traces, and average 16 or 32 ADC samples in firmware to suppress 50/60 Hz line interference.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - select PIC16F1519-I/PT or PIC16LF1519-E/PT-E automotive grade for AEC-Q100 designs. Pb-free / halogen-free packaging per Microchip sustainability disclosures.