PIC16F18854-I/SP - 8-bit 32MHz 7KB Flash MCU | Microchip
N.º da peça: PIC16F18854-I/SP ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $2.2 | $2,20 |
| 10 | $1.95 | $19,50 |
| 100 | $1.71 | $171,00 |
| 500 | $1.5 | $750,00 |
| 1.000 | $1.35 | $1.350,00 |
PIC16F18854-I/SP Visão geral
What is a PIC16 microcontroller? A PIC16 is an 8-bit Reduced Instruction Set Computing (RISC) microcontroller from Microchip Technology, positioned within the larger PIC microcontroller hierarchy: PIC16 -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. PIC16F parts use Flash program memory (the F suffix) and are widely used for cost-sensitive, low-power embedded designs where deterministic behavior, a small footprint, and long product lifecycle matter more than raw compute throughput.
Key differentiating features include 7 KB Flash, 512 bytes RAM, 256 bytes EEPROM, a 10-bit ADC with up to 24 channels and computation features (ADC2), 5-bit and 10-bit DAC, two comparators, an 8-bit/16-bit timer with Hardware Limit Timer (HLT), Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Numerically Controlled Oscillator (NCO), and Zero-Cross Detect (ZCD). Communication peripherals include SPI, I2C, and EUSART. The XLP technology delivers typical sleep currents below 50 nA, enabling battery-powered applications. According to the datasheet, the device operates across 1.8 V to 5.5 V with internal and external oscillator options.
Architecturally, the PIC16F18854-I/SP uses a Harvard architecture with separate program and data buses, a 14-bit instruction word, and a hardware multiplier. The 32 MHz internal oscillator and 4-phase PLL deliver 8 MIPS of throughput while the XLP sleep modes minimize active duty cycles for ultra-low-power designs. Functional Safety (FuSa) documentation makes this part attractive for safety-critical consumer and industrial appliances.
Typical applications include low-power IoT sensor nodes, battery-powered HVAC and home appliances, LED lighting controllers, automotive body and accessory ECUs, capacitive touch user interfaces, sensor signal conditioning nodes, and general-purpose motor control with companion gate drivers. The wide operating voltage range also makes it suitable for industrial 24 V bus systems with adequate local regulation.
When designing with this device, ensure decoupling on both VDD and VSS pins (one 100 nF per pin pair is recommended), confirm in-circuit serial programming (ICSP) header pinout, and use Microchip's MPLAB X IDE with the XC8 compiler for development. Migration between SPDIP (SP), SOIC (SO), and QFN (ML) packages is generally pin-compatible for the 28-pin variant.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternativas drop-in para PIC16F18854-I/SP — 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 PIC16F18854-I/SP (mesmo formato e footprint) — diferindo em Package, Operating Temperature, ADC, Program Memory (Flash), Mounting Type.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16F18855-I/SP
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16F18856-I/SP
✅ Drop-In✓ Em estoque
$1.48 / unidade
Ver ficha técnica →PIC16F18857-I/SP
✅ Drop-In✓ Em estoque
$1.89 / unidade
Ver ficha técnica →PIC16F18854-I/SO
✅ Drop-In✓ Em estoque
$0.82 / unidade
Ver ficha técnica →PIC16F18854-E/SP
✅ Drop-In✓ Em estoque
$1.02 / unidade
Ver ficha técnica →PIC16F18854-I/SP Classificações máximas e características elétricas
| Core Architecture | PIC 8-bit enhanced mid-range |
| Program Memory (Flash) | 7 KB (4K x 14) |
| Data RAM | 512 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Instruction Set Width | 14-bit |
| Operating Voltage Range | 1.8 V to 5.5 V |
| ADC | 10-bit with computation, up to 24 channels |
| DAC | 5-bit and 10-bit |
| Comparators | 2 |
| Timers | 8-bit and 16-bit with HLT |
| Communication Peripherals | SPI, I2C, EUSART |
| Core Independent Peripherals (CIPs) | CLC, CWG, NCO, ZCD, CRC/SCAN |
| Encapsulamento | 28-SPDIP (SP) |
| Tipo de montagem | Through-Hole |
| Temperatura de operação | -40C to +85C (Industrial) |
| XLP Sleep Current | Typical <50 nA |
| Functional Safety (FuSa) | Yes |
| Status RoHS | Compliant |
| Nível MSL | Not applicable (through-hole) |
Configuração de pinos do PIC16F18854-I/SP
| Pino 1 | RA5 — Bidirectional I/O / MCLR input |
| Pino 2 | RA0 — Bidirectional I/O / DAC1 output |
| Pino 3 | RA1 — Bidirectional I/O / DAC2 output |
| Pino 4 | RA2 — Bidirectional I/O / DAC3 output |
| Pino 5 | RA3 — Bidirectional I/O / DAC4 output |
| Pino 6 | RA4 — Bidirectional I/O |
| Pino 7 | RA5 — Bidirectional I/O |
| Pino 8 | RA6 — Bidirectional I/O |
| Pino 9 | RA7 — Bidirectional I/O |
| Pino 10 | RE3 — Input only / MCLR |
| Pino 11 | VDD — Positive supply voltage |
| Pino 12 | VSS — Ground reference |
| Pino 13 | RB7 — Bidirectional I/O / ICSPCLK |
| Pino 14 | RB6 — Bidirectional I/O / ICSPDAT |
| Pino 15 | RB5 — Bidirectional I/O |
| Pino 16 | RB4 — Bidirectional I/O |
| Pino 17 | RB3 — Bidirectional I/O |
| Pino 18 | RB2 — Bidirectional I/O |
| Pino 19 | RB1 — Bidirectional I/O |
| Pino 20 | RB0 — Bidirectional I/O / Interrupt |
| Pino 21 | RC7 — Bidirectional I/O |
| Pino 22 | RC6 — Bidirectional I/O |
| Pino 23 | RC5 — Bidirectional I/O |
| Pino 24 | RC4 — Bidirectional I/O |
| Pino 25 | RC3 — Bidirectional I/O / SCL |
| Pino 26 | RC2 — Bidirectional I/O / SDA |
| Pino 27 | RC1 — Bidirectional I/O |
| Pino 28 | RC0 — Bidirectional I/O |
Aplicações típicas
PIC16F18854-I/SP é adequado para 6 aplicaçãos: Low-Power IoT Sensor Node, Battery-Powered Home Appliance Controller, LED Lighting Controller, Automotive Body and Accessory ECU, Capacitive Touch User Interface, Sensor Signal Conditioning Node.
Low-Power IoT Sensor Node
The PIC16F18854-I/SP suits battery-powered wireless sensor nodes because of its sub-50 nA typical sleep current and 32 MHz active throughput of 8 MIPS. In a typical LoRa/BLE sensor design, the PIC16F18854-I/SP sleeps most of the time, wakes on a timer or interrupt, samples a sensor through the 10-bit ADC with computation, applies local digital filtering, and transmits the result before returning to sleep. With 7 KB of Flash, it comfortably fits state machines and BLE beacon service routines plus simple protocol stacks, while the 256-byte EEPROM stores persistent node IDs and calibration constants. The 1.8-5.5 V operating range lets the same part run from a single lithium coin cell (3 V) or two AA alkalines (3 V) without a separate regulator.
Recomendado
Battery-Powered Home Appliance Controller
Battery and mains-line powered appliances such as thermostats, smoke detectors, and battery-backed sensors benefit from the PIC16F18854-I/SP's combination of XLP sleep, Functional Safety documentation, and rich on-chip peripherals. The 24-channel 10-bit ADC with computation (ADC2) reads NTC temperature sensors or photo diodes directly, while the 5/10-bit DAC and PWM drive alert buzzers or tricolor LEDs. Configurable Logic Cells (CLC) implement safety interlocks without CPU intervention, and the Hardware Limit Timer (HLT) supports functional-safety timing constraints. The 28-SPDIP package is ideal for hand-soldered prototype and through-hole production boards typical of HVAC controllers and small kitchen appliances.
Recomendado
LED Lighting Controller
LED lighting drivers and tunable-white controllers leverage the PIC16F18854-I/SP's Complementary Waveform Generator (CWG), multiple PWMs, and 10-bit DAC for analog dimming. The CWG generates complementary MOSFET drive signals with programmable dead time, ideal for synchronous buck or boost LED converters, while the NCO provides high-resolution dimming below the PWM step size. With 32 MHz CPU and 8 MIPS throughput, the device handles DMX, DALI, or proprietary LED protocols in real time. The wide 1.8-5.5 V supply range lets the same firmware work for 3.3 V low-voltage and 5 V mains-derived LED driver rails. The 28-SPDIP variant suits through-hole LED module designs.
Recomendado
Automotive Body and Accessory ECU
Body electronics such as window lift controllers, mirror adjusters, seat controllers, and interior lighting modules use the PIC16F18854-I/SP family for its Functional Safety (FuSa) documentation, robust peripherals, and 1.8-5.5 V supply range. The Configurable Logic Cells, Complementary Waveform Generator, and Hardware Limit Timer support safety interlocks and motor drive, while the EUSART and SPI/I2C enable LIN, CAN, or local body communication. The -40C to +85C industrial temperature grade covers most cabin environments, and the PIC16F18854-E/SP extended-temperature variant covers under-hood. The 28-SPDIP package is preferred for through-hole production lines used by Tier-1 automotive suppliers.
Recomendado
Capacitive Touch User Interface
Capacitive touch buttons, sliders, and proximity wake-on-touch interfaces use the PIC16F18854-I/SP's mTouch peripheral support and 10-bit ADC with computation. The CLC and NCO perform mixed-signal signal processing without CPU load, so the device can scan multiple touch electrodes in sleep, wake on proximity, and bring the MCU to full speed only when a touch is validated. With XLP sub-50 nA sleep, battery-powered touch remotes and IoT wall switches can run for years on a single coin cell. The 28-SPDIP package supports hand-soldered prototypes and through-hole touch panel assemblies common in home automation.
Recomendado
Sensor Signal Conditioning Node
Industrial sensor signal conditioning nodes use the PIC16F18854-I/SP to digitize analog sensors, apply linearization, and forward readings over SPI or I2C. The 10-bit ADC with computation oversamples and filters inputs without CPU intervention, the on-chip op-amps and comparators condition thermocouples and bridge sensors, and the 5-bit/10-bit DAC generates excitation currents. With 512 bytes of RAM and 7 KB of Flash, the device can host sensor-specific firmware with calibration tables stored in 256 bytes of EEPROM. The wide operating voltage and 32 MHz throughput suit industrial 4-20 mA loop-powered and 24 V bus-powered designs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16F18854-I/SP — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16F18855-I/SP | PIC16F18856-I/SP | PIC16F18857-I/SP | PIC16F18854-I/SO | PIC16F18854-E/SP |
|---|---|---|---|---|---|---|
| Package | 28-SPDIP (SP) through-hole | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | SOIC-28 (SO) - surface mount | 28-SPDIP (SP) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 7 KB | 14 KB | 28 KB | 56 KB | 7 KB (same die) | 7 KB (same die) |
| RAM | 512 bytes | 1 KB | 2 KB | 4 KB | 512 bytes | 512 bytes |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (Extended) |
| Unit Price (qty 1, as of 2026-09-20) | ~$2.20 | ~$2.40 | ~$2.65 | ~$2.85 | ~$2.10 | ~$2.45 |
Principais diferenciais
- Functional Safety (FuSa) documentation included for safety-critical designs (vs PIC16F18446-I/SO)
- On-chip 5-bit and 10-bit DAC plus 10-bit ADC with computation (vs PIC16F18855-I/SP)
- Rich Core Independent Peripheral (CIP) set including CLC, CWG, NCO, ZCD (vs PIC16F1829-I/P)
Notas de projeto
Place one 100 nF decoupling capacitor as close as possible to each VDD pin and a single 10 uF bulk capacitor near the VDD supply entry point. The PIC16F18854-I/SP has two VDD/VSS pin pairs (pins 11/12 and pins in the RC/RB port groups on larger packages); both must be decoupled to ensure stable XLP wakeup and to minimize ADC reference noise.
Keep the ICSP header trace lengths under 50 mm to avoid programming failures on PIC16F18854-I/SP. According to Microchip programming specifications, the ICSPDAT (RB6) and ICSPCLK (RB7) lines should not be heavily loaded by external circuitry; adding a series resistor or buffer is recommended if the pins also drive user loads. Use a 4.7 kohm pull-up on MCLR (pin 1 on the SPDIP variant) to enable reliable reset.
Do not exceed the 5.5 V maximum supply on the PIC16F18854-I/SP. Below 2.3 V, the maximum CPU frequency derates from 32 MHz to 16 MHz, so for 1.8 V designs select the appropriate clock configuration in CONFIG1. Also confirm that unused I/O pins are configured as outputs (not inputs) to avoid floating-pin current consumption in XLP sleep mode.
Informações de conformidade
RoHS and REACH compliance per Microchip product page. Functional Safety (FuSa) documentation is available separately from Microchip to support IEC 60730 / UL 60730 class B compliance for household appliances. Not AEC-Q100 qualified - PIC16F18854 is intended for industrial / consumer applications; for automotive AEC-Q100 variants use PIC16F18855-E/SP (extended temperature) plus an automotive-grade supplement.
