PIC16LF1516-I/ML - 8-bit 20MHz MCU, 14KB Flash, 28-QFN | Microchip
N.º da peça: PIC16LF1516-I/ML ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.75 | $1,75 |
| 10 | $1.58 | $15,80 |
| 100 | $1.4 | $140,00 |
| 500 | $1.2 | $600,00 |
| 1.000 | $1.05 | $1.050,00 |
PIC16LF1516-I/ML Visão geral
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.
Alternativas drop-in para PIC16LF1516-I/ML — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC16LF1516-I/ML (mesmo formato e footprint) — diferindo em ADC, Package, I/O Pins, Timers, Program Memory (Flash).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16F1516-I/ML
✅ Drop-In✓ Em estoque
$1.49 / unidade
Ver ficha técnica →PIC16LF1516-E/ML
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16LF1516T-I/ML
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$1.18 / unidade
Ver ficha técnica →PIC16LF1512-I/SP
✅ Drop-In✓ Em estoque
$1.02 / unidade
Ver ficha técnica →PIC16LF1507-E/ML
✅ Drop-In✓ Em estoque
$0.55 / unidade
Ver ficha técnica →PIC16F1829-I/ML
✅ Drop-In✓ Em estoque
$1.18 / unidade
Ver ficha técnica →PIC16LF1516-I/ML Classificações máximas e características elétricas
| 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 |
| Faixa de temperatura de operação | -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 |
| Encapsulamento | 28-pin QFN (6x6 mm) with exposed pad |
| Tipo de montagem | Surface Mount |
| Technology Family | PIC16F151x XLP nanoWatt |
| Process Technology | CMOS |
| Status RoHS | Compliant |
| Lead-Free | Yes |
| Nível MSL | 3 |
Configuração de pinos do PIC16LF1516-I/ML
| Pino 1 | RA5 — Digital I/O / analog input AN4 / CCP2 |
| Pino 2 | RA4 — Digital I/O / analog input AN3 |
| Pino 3 | RA3 — Digital I/O / analog input AN3 / MCLR (alternate) |
| Pino 4 | RC5 — Digital I/O / analog input AN10 |
| Pino 5 | RC4 — Digital I/O / analog input AN9 |
| Pino 6 | RC3 — Digital I/O / analog input AN8 / SCL1 |
| Pino 7 | RC2 — Digital I/O / analog input AN7 / SDA1 |
| Pino 8 | RC1 — Digital I/O / analog input AN6 / CCP2 |
| Pino 9 | RC0 — Digital I/O / analog input AN5 |
| Pino 10 | VSS — Ground reference |
| Pino 11 | RA2 — Digital I/O / analog input AN2 |
| Pino 12 | RA1 — Digital I/O / analog input AN1 / ICSPCLK |
| Pino 13 | RA0 — Digital I/O / analog input AN0 / ICSPDAT |
| Pino 14 | VDD — Positive supply 2.3V-5.5V |
| Pino 15 | RB7 — Digital I/O |
| Pino 16 | RB6 — Digital I/O / ICSPCLK |
| Pino 17 | RB5 — Digital I/O / AN11 |
| Pino 18 | RB4 — Digital I/O / AN10 |
| Pino 19 | RB3 — Digital I/O / AN9 |
| Pino 20 | RB2 — Digital I/O / AN8 |
| Pino 21 | RB1 — Digital I/O / AN10 / EUSART TX |
| Pino 22 | RB0 — Digital I/O / AN12 / EUSART RX / INT |
| Pino 23 | VDD — Positive supply 2.3V-5.5V |
| Pino 24 | VSS — Ground reference |
| Pino 25 | RC7 — Digital I/O / RX/DT |
| Pino 26 | RC6 — Digital I/O / TX/CK |
| Pino 27 | RA7 — Digital I/O / OSC1 |
| Pino 28 | RA6 — Digital I/O / OSC2 |
| Pino 29 | EP — Exposed thermal pad — must be soldered to ground copper |
Aplicações típicas
PIC16LF1516-I/ML é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16LF1516-I/ML — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Wide 2.3V-5.5V supply range ideal for battery applications (vs PIC16F1829-I/ML)
- 14KB Flash with self-programmability for bootloaders (vs PIC16LF1507-E/ML)
- Standard PIC16 mid-range core with extensive code libraries (vs PIC16F1829-I/ML)
- Lower cost than PIC16F1829 for non-USB designs (vs PIC16F1829-I/ML)
- Industrial temperature range with XLP nanoWatt technology (vs PIC16LF1516T-I/ML)
Notas de projeto
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.
Informações de conformidade
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.
