PIC16LF18876T-I/PT - 8-bit 32MHz 28KB Flash XLP MCU TQFP-44 | Microchip
N.º da peça: PIC16LF18876T-I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.42 | $3,42 |
| 10 | $3.05 | $30,50 |
| 100 | $2.71 | $271,00 |
| 500 | $2.42 | $1.210,00 |
| 1.000 | $2.18 | $2.180,00 |
PIC16LF18876T-I/PT Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory and a configurable set of peripherals. The PIC16LF18876 family sits inside Microchip's PIC16 mid-range 8-bit MCU portfolio, above baseline PIC10/PIC12/PIC16F devices but below the dsPIC and PIC32 16/32-bit families. Within the power-management hierarchy the PIC16LF18876 is classified as a power-management IC-adjacent device in the sense that it features nanoWatt XLP sleep modes, peripheral module disable, and a core-independent peripheral set that lets the chip spend most of its time in deep sleep and wake on a single timer, ADC, or interrupt edge without waking the CPU.
The device integrates a 10-bit ADC with Computation (ADC2), a 5-bit DAC, multiple comparators, PWM, Complementary Waveform Generator (CWG), SMT timers, Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), SCAN/CRC, Zero-Cross Detect (ZCD), and Peripheral Pin Select (PPS) for flexible routing of digital functions to nearly any I/O. It supports up to 36 general-purpose I/O pins in the 44-pin package, plus multiple serial interfaces (UART, SPI, I2C) for host or sensor connectivity.
In the architecture, an 8-bit modified Harvard RISC engine executes most instructions in one cycle, with a 14-bit instruction word and 16-level hardware stack. The 10-bit ADC2 can automate averaging, oversampling, threshold comparisons and burst averaging, offloading signal-conditioning work from the CPU and enabling longer sleep windows. PPS allows remapping of digital peripherals to different physical pins, which simplifies PCB layout and lets the same silicon serve different board variants.
Typical applications include low-power IoT sensor nodes, battery-powered HVAC and metering peripherals, automotive body and accessory subsystems (sub-block, not AEC-Q100 in the -I grade), industrial control panels with capacitive touch via mTouch, and consumer appliances requiring long battery life. The 32 MHz core is fast enough for basic communication stacks, while the XLP sleep currents below 50 nA (typical) make it a fit for energy-harvesting or coin-cell products.
When designing with this part, select an external 32.768 kHz crystal for RTC-driven sleep, or use the internal 31 kHz LFINTOSC if accuracy below ~1% is acceptable. Decouple VDD with a 100 nF ceramic placed within 2 mm of each VDD pin, plus a bulk 1-10 uF near the regulator output. For EEPROM endurance beyond 100K write cycles, spread writes across multiple pages and verify after each write.
This page synthesizes live distributor pricing from DigiKey, Mouser and Octopart, lists drop-in same-package variants from the PIC16LF18876 family, and adds practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para PIC16LF18876T-I/PT — 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 PIC16LF18876T-I/PT (mesmo formato e footprint) — diferindo em Operating Temperature, Package, ADC, DAC, Comparators.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16LF18876-I/PT
✅ Drop-In✓ Em estoque
$1.72 / unidade
Ver ficha técnica →PIC16LF18876-E/PT
✅ Drop-In✓ Em estoque
$1.18 / unidade
Ver ficha técnica →PIC16LF18876T-E/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16LF18875T-I/PT
✅ Drop-In✓ Em estoque
$1.05 / unidade
Ver ficha técnica →PIC16LF1784T-I/PT
✅ Drop-In✓ Em estoque
$1.62 / unidade
Ver ficha técnica →PIC16LF18855T-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16LF18876T-I/PT Classificações máximas e características elétricas
| Series | PIC® XLP™ 16F |
| Core Processor | PIC16 |
| Core Size | 8-bit |
| Maximum Clock Speed | 32 MHz |
| Program Memory Size | 28 KB Flash (16K x 14) |
| RAM Size | 2 KB |
| EEPROM Size | 256 bytes |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Temperatura de operação | -40 C to +85 C (Industrial) |
| Encapsulamento | 44-pin TQFP (10x10 mm) |
| Tipo de montagem | Surface Mount |
| Number of I/O | Up to 36 (periphery) |
| ADC | 10-bit ADC2 with Computation |
| DAC | 5-bit DAC |
| Comparators | Yes (multiple) |
| PWM Modules | Yes, with CWG |
| Peripheral Pin Select (PPS) | Yes |
| Nível MSL | 3 (per JEDEC J-STD-020, reflow 260C) |
| Status RoHS | Compliant |
Configuração de pinos do PIC16LF18876T-I/PT
| Pino 1 | RA5 — Bidirectional I/O with interrupt-on-change; analog-capable |
| Pino 2 | RA4 — Bidirectional I/O; analog-capable |
| Pino 3 | RA3 — Bidirectional I/O; analog-capable |
| Pino 4 | RA2 — Bidirectional I/O; analog-capable |
| Pino 5 | RA1 — Bidirectional I/O; analog-capable |
| Pino 6 | RA0 — Bidirectional I/O; analog-capable |
| Pino 7 | VSS — Ground reference |
| Pino 8 | RA7 — Bidirectional I/O; OSC1/CLKIN option |
| Pino 9 | RA6 — Bidirectional I/O; OSC2/CLKOUT option |
| Pino 10 | RC0 — Bidirectional I/O; analog-capable |
| Pino 11 | RC1 — Bidirectional I/O; analog-capable |
| Pino 12 | RC2 — Bidirectional I/O; analog-capable |
| Pino 13 | RC3 — Bidirectional I/O; analog-capable |
| Pino 14 | RC4 — Bidirectional I/O; analog-capable |
| Pino 15 | RC5 — Bidirectional I/O; analog-capable |
| Pino 16 | RC6 — Bidirectional I/O; serial TX option |
| Pino 17 | RC7 — Bidirectional I/O; serial RX option |
| Pino 18 | VSS — Ground reference |
| Pino 19 | VDD — Positive supply (1.8 V to 3.6 V) |
| Pino 20 | RB0 — Bidirectional I/O with interrupt-on-change; analog-capable |
| Pino 21 | RB1 — Bidirectional I/O with interrupt-on-change; analog-capable |
| Pino 22 | RB2 — Bidirectional I/O with interrupt-on-change; analog-capable |
| Pino 23 | RB3 — Bidirectional I/O with interrupt-on-change; analog-capable |
| Pino 24 | RB4 — Bidirectional I/O with interrupt-on-change; analog-capable |
| Pino 25 | RB5 — Bidirectional I/O with interrupt-on-change; analog-capable |
| Pino 26 | RB6 — Bidirectional I/O; ICSPCLK option |
| Pino 27 | RB7 — Bidirectional I/O; ICSPDAT option |
| Pino 28 | VDD — Positive supply (1.8 V to 3.6 V) |
| Pino 29 | VSS — Ground reference |
| Pino 30 | RD0 — Bidirectional I/O; analog-capable |
| Pino 31 | RD1 — Bidirectional I/O; analog-capable |
| Pino 32 | RD2 — Bidirectional I/O; analog-capable |
| Pino 33 | RD3 — Bidirectional I/O; analog-capable |
| Pino 34 | RD4 — Bidirectional I/O; analog-capable |
| Pino 35 | RD5 — Bidirectional I/O; analog-capable |
| Pino 36 | RD6 — Bidirectional I/O; analog-capable |
| Pino 37 | RD7 — Bidirectional I/O; analog-capable |
| Pino 38 | VSS — Ground reference |
| Pino 39 | RE0 — Bidirectional I/O; analog-capable |
| Pino 40 | RE1 — Bidirectional I/O; analog-capable |
| Pino 41 | RE2 — Bidirectional I/O; analog-capable |
| Pino 42 | RE3 — Bidirectional I/O; analog-capable |
| Pino 43 | VDD — Positive supply (1.8 V to 3.6 V) |
| Pino 44 | MCLR — Master clear (reset) input, active-low |
Aplicações típicas
PIC16LF18876T-I/PT é adequado para 7 aplicaçãos: Battery-Powered IoT Sensor Node, Industrial Metering and Sub-Block Control, Capacitive Touch User Interface (mTouch), Automotive Body and Accessory Electronics, Consumer Appliance Control Board, Energy-Harvesting Wireless Switch, Medical Monitoring Accessory.
Battery-Powered IoT Sensor Node
The PIC16LF18876T-I/PT is a strong fit for coin-cell or 2xAA battery IoT sensor nodes because of its XLP sleep currents under 50 nA typical with RTC running, 1.8-3.6 V direct battery supply, and the 10-bit ADC2 with computation that lets it oversample and threshold-detect autonomously. The PPS peripheral pin select lets the designer route UART, I2C and SPI to any I/O, simplifying PCB layout for mixed sensor boards. At 32 MHz the core handles LoRaWAN/Sigfox class-A stacks or BLE HCI command pass-through; in deep sleep with periodic ADC wake it can run years on a single CR2032. The 2 KB RAM supports TLS or LoRaWAN frame buffering without external memory. JTAG-free ICSP keeps the firmware update path simple for fielded devices.
Recomendado
Industrial Metering and Sub-Block Control
The PIC16LF18876T-I/PT fits sub-block industrial metering and control because of its 32 MHz core, 28 KB Flash, hardware limit timer (HLT), windowed watchdog (WWDT), and SCAN/CRC for memory integrity. The 10-bit ADC2 with burst-averaging mode reads sensor bridges (temperature, pressure, flow) at low noise floors without CPU intervention. Multiple PWM channels plus the complementary waveform generator (CWG) drive half-bridge motor or valve stages. Zero-Cross Detect (ZCD) simplifies AC-line triac triggering for solid-state relays. The -I industrial temperature grade (-40 to +85 C) handles cabinet environments. PPS lets the same firmware run on different connector pinouts across product variants.
Recomendado
Capacitive Touch User Interface (mTouch)
The PIC16LF18876T-I/PT supports Microchip's mTouch capacitive touch sensing through its CTMU peripheral and ADC2 with computation, enabling up to 36 touch channels in the 44-TQFP package. PPS allows flexible sensor pin assignment so the PCB layout does not have to follow a strict pinout - sensor traces can be routed for EMI immunity. Deep sleep with wake-on-touch keeps quiescent current in the microamp range, ideal for battery-powered remote controls and white-goods HMIs. The 32 MHz core runs mTouch plus a simple UI display refresh. The hardware limit timer provides debounce and press-hold detection without software overhead.
Recomendado
Automotive Body and Accessory Electronics
The PIC16LF18876T-I/PT (industrial grade) can address non-safety automotive body and accessory subsystems such as interior lighting controllers, seat-position memory, mirror adjust, and HVAC blend-door actuators where AEC-Q100 is not mandatory. Its PWM and CWG outputs drive LED strings and small DC motors; multiple UARTs interface to CAN-LIN gateways. Low sleep current suits always-on parked vehicles, drawing under 100 uA while waiting for a keyfob or CAN wake. Migration to AEC-Q100 grade (PIC16F18876-E/SP automotive variant) is a known path for designs that later need full automotive qualification. The 28 KB Flash supports modest LIN stacks and OBD-II diagnostic handlers.
Recomendado
Consumer Appliance Control Board
The PIC16LF18876T-I/PT fits consumer appliance control boards for coffee machines, washing machines, and small kitchen appliances because it integrates user-interface I/O, motor-control PWM, and sensor ADC in a single 44-TQFP chip. The 5-bit DAC and multiple comparators handle closed-loop temperature or water-level sensing. mTouch via CTMU enables glass-front touch panels without mechanical buttons, improving the appliance aesthetic and waterproofing. Low-cost 32 KHz internal LFINTOSC keeps RTC time without an external crystal, reducing BOM cost. PPS lets the same firmware support different display and key-scanning configurations across product lines.
Recomendado
Energy-Harvesting Wireless Switch
The PIC16LF18876T-I/PT is well suited for energy-harvesting wireless switches (EnOcean-compatible, BLE beacon, proprietary sub-GHz) because of its nanoWatt XLP sleep mode drawing under 50 nA typical and its ability to wake from sleep, transmit a packet, and return to sleep in well under 5 ms. The wide 1.8-3.6 V supply range works directly from harvest sources like kinetic or solar cells with a small buffer cap. The 2 KB RAM holds a transmit packet and AES nonce without external memory. PPS allows the single-wire antenna interface to land on any GPIO. Industrial -40 to +85 C temperature grade handles indoor and outdoor installations.
Recomendado
Medical Monitoring Accessory
The PIC16LF18876T-I/PT suits non-critical medical monitoring accessories such as pill-box reminders, posture sensors, and personal activity trackers where full IEC 60601 isolation is not required. Its low sleep current extends battery life across multi-day or multi-week use cases; the ADC2 with computation provides oversampled heart-rate or respiration signal conditioning without burning CPU cycles. The 32 MHz core handles simple BLE HCI command framing to a paired phone. PPS lets the firmware reuse the same code across different product SKUs with different connector pinouts. The -40 to +85 C industrial temperature grade handles body-worn environments.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16LF18876T-I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16LF18876-I/PT | PIC16LF18876-E/PT | PIC16LF18876T-E/PT | PIC16LF18875T-I/PT | PIC16LF1784T-I/PT | PIC16LF18855T-I/PT |
|---|---|---|---|---|---|---|---|
| Package | 44-TQFP (PT) | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 28 KB | 28 KB | 28 KB | 28 KB | 14 KB | 32 KB | 14 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB | 2 KB | 1 KB |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Max Clock Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| ADC | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC (no ADC2 computation) | 10-bit ADC2 |
| Peripheral Pin Select | Yes | Yes | Yes | Yes | Yes | No (legacy peripheral pin mapping) | Yes |
Principais diferenciais
- Largest Flash in the PIC16F1887x family with PPS and ADC2 (vs PIC16LF18875T-I/PT)
- Modern ADC2 with Computation vs legacy ADC on PIC16F178x (vs PIC16LF1784T-I/PT)
- Industrial -40 to +85 C vs extended -40 to +125 C option (vs PIC16LF18876-E/PT)
Notas de projeto
Estimated: in deep sleep with RTC running from the 32 kHz LFINTOSC, the PIC16LF18876T-I/PT draws approximately 50 nA typical at 3 V. For a CR2032 battery with 220 mAh capacity, sleep-only lifetime exceeds 500 years theoretical, dominated by battery self-discharge (~1 percent per year). Wake-on-ADC or wake-on-timer events should be spaced >100 ms to amortize the wake-up current spike (~1 mA for a few cycles) over the sleep time.
Place a 100 nF X7R 0402 ceramic decoupling capacitor within 2 mm of each VDD pin (pins 19, 28, 43), with a 1-10 uF X5R bulk cap near the regulator output. The four VSS pins (7, 18, 29, 38) should connect to a single ground plane stitched with vias. Keep the ICSP programming header (RB6/RB7/MCLR/VDD/VSS) accessible for field firmware updates; Microchip's PICkit 4 / MPLAB Snap programmers use this 5-pin SIL pattern.
When using PPS to remap high-speed peripherals (UART, SPI) across port banks, verify the maximum toggle rate supported by the destination pin group. PPS does not change drive strength; high-frequency SPI (>8 MHz) on port B/E may need a 50 ohm series termination if traces exceed 25 mm. Keep ADC inputs and PWM outputs physically separated on the PCB to avoid capacitive coupling between switching edges and sensitive analog readings.
Do not exceed 3.6 V on VDD for the LF variant; use PIC16F18876 (1.8-5.5 V) for higher-voltage designs. The MCLR pin (pin 44) must not be left floating; tie to VDD through a 10 kohm resistor or to the ICSP header. EEPROM writes longer than 8 ms will reset the WDT - use WDT software window or disable WDT during EEPROM write routines. ADC reference voltage must be at least 1.0 V below VDD for reliable 10-bit conversions.
Informações de conformidade
RoHS and REACH compliant per Microchip product environmental compliance page. -I grade is industrial -40 to +85 C, NOT AEC-Q100 qualified; for automotive safety applications, use PIC16F18876 AEC-Q100 variants or migrate to PIC16LF18876-E grade and add system-level qualification.