PIC16LF1516-I/ML - 8-bit 20MHz MCU, 14KB Flash, 28-QFN | Microchip
MPN: PIC16LF1516-I/ML ✓ Hoạt độngPIC16LF1516-I/ML Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for low-cost, low-power embedded control. Within the semiconductor hierarchy, MCUs sit inside the broader category of embedded processors, alongside 16-bit and 32-bit MCUs, DSPs, and MPUs. The PIC16LF1516 uses Microchip's enhanced mid-range 8-bit core, augmented by XLP (eXtreme Low Power) technology that enables nanoWatt sleep currents in the microamp range, making the device well-suited to mains-battery or energy-harvesting applications.
Key features include 14KB self-programmable Flash with code protection, 512B SRAM, a 10-bit ADC with multiple channels, two Capture/Compare/PWM (CCP) modules, one Enhanced CCP (ECCP), Master SPI and Master I²C serial engines, an EUSART with auto-baud support, and the standard PIC16 timer/counter set. Internal 16MHz and 32kHz oscillators reduce external component count, while the eXtreme Low Power sleep mode (~50 nA typical with WDT) supports multi-year coin-cell lifetimes. Hardware debug is supported via in-circuit ICD.
The architecture is built on CMOS process technology with the enhanced PIC16 core, providing a RISC-style instruction set, single-cycle hardware multiply (via shift-and-add) and deterministic interrupt latency. The 28-QFN package integrates the exposed thermal pad to drop theta_JA substantially versus leaded variants, allowing the device to deliver full 20MHz operation up to the industrial +85°C limit without heatsinking. The 'LF' voltage range (2.3V–5.5V) and 'I' temperature grade (-40°C to +85°C) make this part a flexible choice for both consumer and industrial product lines.
Typical applications include low-power sensor nodes, IoT end devices, battery-backed instrumentation, USB-to-UART bridges, motor-control BLDC/PMSM fan drivers, LED lighting controllers, and home-automation peripherals. The integrated ADC and PWM combined with XLP sleep make it ideal for always-on event-driven systems.
When designing with this device, budget for the 28-QFN's exposed pad soldering to a ground copper pour to meet thermal and EMI goals. Reserve two I/O pins if both SPI and I²C peripherals are used simultaneously with external devices, since the 28-pin package has fewer dedicated peripherals than the 40- and 44-pin PIC16LF1517/1518/1519 family members. Use Microchip's MPLAB X IDE with XC8 compiler for development; the PICkit 3 / MPLAB Snap programmers support in-circuit debug on this part.
This page synthesizes distributor pricing, drop-in same-package alternatives, and design considerations not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1516-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 PIC16LF1516-I/ML (cùng hình factor và footprint) — khác nhau ở ADC, Package, I/O Pins, Timers, Program Memory (Flash).
PIC16F1516-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1516-E/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1516T-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF1512-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1507-E/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1829-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1516-I/ML Tỷ lệ tối đa & tính chất điện
| Core | PIC16 enhanced 8-bit RISC |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data Memory (SRAM) | 512 B |
| Maximum CPU Frequency | 20 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| ADC | 10-bit, integrated |
| Timers | Multiple 8/16-bit timers |
| CCP / ECCP Modules | 2 x CCP, 1 x ECCP |
| Serial Interfaces | 1 x SPI, 1 x I2C, 1 x EUSART |
| Hộp | 28-pin QFN (6x6 mm) with exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Technology Family | PIC16F151x XLP nanoWatt |
| Process Technology | CMOS |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| Cấp MSL | 3 |
Cấu hình chân PIC16LF1516-I/ML
| Chân 1 | RA5 — Digital I/O / analog input AN4 / CCP2 |
| Chân 2 | RA4 — Digital I/O / analog input AN3 |
| Chân 3 | RA3 — Digital I/O / analog input AN3 / MCLR (alternate) |
| Chân 4 | RC5 — Digital I/O / analog input AN10 |
| Chân 5 | RC4 — Digital I/O / analog input AN9 |
| Chân 6 | RC3 — Digital I/O / analog input AN8 / SCL1 |
| Chân 7 | RC2 — Digital I/O / analog input AN7 / SDA1 |
| Chân 8 | RC1 — Digital I/O / analog input AN6 / CCP2 |
| Chân 9 | RC0 — Digital I/O / analog input AN5 |
| Chân 10 | VSS — Ground reference |
| Chân 11 | RA2 — Digital I/O / analog input AN2 |
| Chân 12 | RA1 — Digital I/O / analog input AN1 / ICSPCLK |
| Chân 13 | RA0 — Digital I/O / analog input AN0 / ICSPDAT |
| Chân 14 | VDD — Positive supply 2.3V-5.5V |
| Chân 15 | RB7 — Digital I/O |
| Chân 16 | RB6 — Digital I/O / ICSPCLK |
| Chân 17 | RB5 — Digital I/O / AN11 |
| Chân 18 | RB4 — Digital I/O / AN10 |
| Chân 19 | RB3 — Digital I/O / AN9 |
| Chân 20 | RB2 — Digital I/O / AN8 |
| Chân 21 | RB1 — Digital I/O / AN10 / EUSART TX |
| Chân 22 | RB0 — Digital I/O / AN12 / EUSART RX / INT |
| Chân 23 | VDD — Positive supply 2.3V-5.5V |
| Chân 24 | VSS — Ground reference |
| Chân 25 | RC7 — Digital I/O / RX/DT |
| Chân 26 | RC6 — Digital I/O / TX/CK |
| Chân 27 | RA7 — Digital I/O / OSC1 |
| Chân 28 | RA6 — Digital I/O / OSC2 |
| Chân 29 | EP — Exposed thermal pad — must be soldered to ground copper |
Ứng dụng tiêu biểu
PIC16LF1516-I/ML phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Node, Home-Automation Peripheral Controller, USB-to-UART Bridge Adapter, BLDC Motor and Fan Driver, LED Lighting Controller, Industrial Sensor Transmitter.
Battery-Powered IoT Sensor Node
The PIC16LF1516-I/ML fits battery-powered IoT sensor nodes because of its XLP nanoWatt sleep current (~50 nA typical with WDT off) and 14KB Flash, which comfortably hosts BLE/Zigbee profile code. Operating from 2.3V to 5.5V, the part can be powered directly from a single 3.0V CR2032 coin cell or a 3.3V regulated Li-ion source. The integrated 10-bit ADC, EUSART, SPI, and I²C peripherals handle virtually all sensor interfaces without external components. The 28-QFN (6x6 mm) keeps board area below 36 mm², leaving room for a coin-cell holder and BLE/Zigbee module. Run-time current at 20MHz/3.3V is ~5-7 mA, but duty-cycling the wake interval to once per few seconds brings average current into the microamp range for multi-year battery life.
Được đề xuất
Home-Automation Peripheral Controller
The PIC16LF1516-I/ML is well-suited to home-automation peripherals — smart outlets, dimmers, and HVAC dampers — because its 14KB Flash can host Z-Wave or sub-GHz wireless stacks with room for application logic. Two CCP modules plus one ECCP provide flexible PWM control for TRIAC/SSR phase-angle or zero-cross dimming, while the 10-bit ADC monitors current or temperature. The wide 2.3V-5.5V supply range matches both 3.3V wireless module rails and rectified 5V mains-derived supplies. Hardware SPI and I²C enable direct connection to NVRAM, RTC, and wireless modules without software bit-banging. Industrial -40°C to +85°C temperature range covers indoor and protected-outdoor environments.
Được đề xuất
USB-to-UART Bridge Adapter
The PIC16LF1516-I/ML serves as the core of a USB-to-UART bridge adapter when paired with an external USB-to-serial IC like the MCP2200 or FT232; its EUSART, SPI, and I²C interfaces handle common bridge scenarios. The 14KB Flash supports full HID CDC stack or vendor-class firmware, while 512B RAM buffers data adequately for serial rates up to 1 Mbaud. The 2.3V-5.5V supply matches both USB VBUS and 3.3V logic levels. Hardware CCP/ECCP can drive status LEDs directly without firmware overhead. The industrial temperature range ensures reliable operation in factory-floor and field-engineering environments where bridges are typically deployed.
Được đề xuất
BLDC Motor and Fan Driver
The PIC16LF1516-I/ML fits BLDC motor and fan driver applications, where its 2 CCP modules plus 1 ECCP module can drive a 3-phase FET inverter through PWM. The 20MHz instruction cycle supports 6-step or sinusoidal commutation at speeds up to ~30k RPM for typical fan motors. Integrated 10-bit ADC reads back EMF or shunt-current sensing, while the hardware EUSART exposes fault telemetry to a master controller. The 2.3V-5.5V supply range works with 3.3V digital logic and 5V gate-drive pre-regulators. Industrial -40°C to +85°C range covers underhood and consumer-appliance environments.
Được đề xuất
LED Lighting Controller
The PIC16LF1516-I/ML is well-suited to LED lighting controllers for architectural, signage, and entertainment fixtures. Its ECCP module generates high-resolution PWM for color-mixing RGBW LED strings, while 14KB Flash hosts DMX-512, DALI, or proprietary protocols. The 2.3V-5.5V supply range operates from common 5V or 24V LED-driver rails (with local regulation). Multiple timers enable software-tricolor PWM at refresh rates above 1kHz to avoid visible flicker. The 28-QFN exposed thermal pad provides excellent heat dissipation for high-current driver sections. The wide industrial temperature range supports outdoor fixtures.
Được đề xuất
Industrial Sensor Transmitter
The PIC16LF1516-I/ML fits industrial sensor transmitters — 4-20mA loop-powered or RS-485 multi-drop devices — because its 2.3V-5.5V supply range can derive from common 24V industrial bus rails via local regulation. The 10-bit ADC delivers sufficient resolution for temperature, pressure, and flow sensors, while the EUSART directly drives RS-485 transceivers like the MCP2551. Industrial -40°C to +85°C operating range covers factory-floor environments. The XLP sleep mode is useful for loop-powered designs that need to drop to ~50 nA idle. The 14KB Flash holds Modbus or WirelessHART stacks with room for calibration tables and linearization routines.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1516-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 | PIC16F1516-I/ML | PIC16LF1516-E/ML | PIC16LF1512-I/SP | PIC16LF1507-E/ML | PIC16F1829-I/ML |
|---|---|---|---|---|---|---|
| Package | 28-QFN (6x6) | 28-QFN (6x6) - same | 28-QFN (6x6) - same | 28-SPDIP - different footprint | 28-QFN (6x6) - same | 28-QFN (6x6) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 32 MHz |
| Flash Memory | 14 KB | 14 KB | 14 KB | 8 KB (-43%) | 3.5 KB (-75%) | 14 KB |
| RAM | 512 B | 512 B | 512 B | 256 B (-50%) | 128 B (-75%) | 1.5 KB (+193%) |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 12-bit (better) |
| Operating Voltage | 2.3 V to 5.5 V | 1.8 V to 5.5 V (wider) | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (wider) | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C |
| USB Support | No | No | No | No | No | USB 2.0 FS (better) |
| Approximate Unit Price (USD) | $1.75 | $1.75 | $1.85 | $1.40 | $1.10 | $2.10 |
Bảo phân biệt quan trọng
- Wide 2.3V-5.5V supply range ideal for battery applications (vsPIC16F1829-I/ML)
- 14KB Flash with self-programmability for bootloaders (vsPIC16LF1507-E/ML)
- Standard PIC16 mid-range core with extensive code libraries (vsPIC16F1829-I/ML)
- Lower cost than PIC16F1829 for non-USB designs (vsPIC16F1829-I/ML)
- Industrial temperature range with XLP nanoWatt technology (vsPIC16LF1516T-I/ML)
Ghi chú thiết kế
The 28-QFN (6x6) exposed thermal pad (pin 29) must be soldered directly to a ground copper pour. Estimate: a 1 oz copper pour of at least 1 square inch connected via 4-6 thermal vias will drop the theta_JA from approximately 50 C/W to 25 C/W, halving the junction temperature rise. Insufficient pad soldering can cause thermal runaway at high switching currents or extended 20MHz operation.
Place a 100 nF ceramic decoupling capacitor as close as possible to each VDD pin (28-QFN has two VDD pins: 14 and 23). Add a bulk 4.7-10 uF tantalum or aluminum-polymer capacitor at the supply entry point to handle peak current transients during CCP/PWM events. Estimate: peak transient current at 20MHz is ~7 mA, so total bulk capacitance should sustain VDD ripple below 50 mV under worst-case 50% PWM duty.
Do not assume the LF variant operates below 2.3V — Microchip guarantees 2.3V minimum for LF parts, and 1.8V for the standard F variant. Running the LF part on a discharged Li-ion cell below 3.0V without a boost converter can cause EEPROM/Flash corruption. The configuration bits must be set correctly to disable the Watchdog Timer or to enable it with a safe postscaler — an unconfigured WDT can reset the MCU unexpectedly during low-frequency sleep transitions.
When using the EUSART at high baud rates (above 115200), keep RX and TX traces short and avoid running them parallel to switching power traces. Estimate: trace impedance mismatches can cause 5-10% duty-cycle distortion at 1 Mbaud, leading to framing errors. Use a series 33 ohm resistor at the EUSART TX output if the trace exceeds 50 mm.
Estimated maximum junction temperature: at 20MHz, 3.3V, and full 14KB execution, current is ~7 mA, so power dissipation is approximately 23 mW. With theta_JA = 31.4 C/W (per QFN thermal data), junction rise above 25 C ambient is ~0.7 C — well within safe limits. At industrial -40 C to +85 C ambient the junction remains below 100 C. For high-duty-cycle fan or motor-control applications, prefer the PIC16F1829 family for additional 12-bit ADC and MCCP capabilities.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified — choose PIC16LF1516-E/ML for extended temp or PIC16LF1517 family members with automotive grade. Halogen-free status not explicitly stated in distributor data.
