PIC16LF1554-I/SL - 8-bit XLP MCU 7KB Flash 14-SOIC | Microchip
N.º de pieza: PIC16LF1554-I/SL ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $1.62 | $1,62 |
| 10 | $1.47 | $14,70 |
| 100 | $1.21 | $121,00 |
| 500 | $1.05 | $525,00 |
| 1.000 | $0.92 | $920,00 |
PIC16LF1554-I/SL Descripción general
An 8-bit microcontroller (MCU) is a single-chip computer integrating a CPU, Flash program memory, RAM, peripherals (ADC, timers, communication interfaces), and I/O pins. PIC microcontrollers use a modified Harvard RISC architecture with a single accumulator and 14-bit instruction word, balancing deterministic timing, low power, and code density. MCUs belong to the broader embedded processor hierarchy (8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC) and serve as the central controller in countless consumer, industrial, and IoT products.
Key features of the PIC16LF1554 include hardware CVD for noise-immune capacitive touch measurement, two independent 10-bit ADCs enabling simultaneous sampling, an internal 32MHz oscillator accurate to ±1% across temperature, and support for mTouch button, slider, and proximity sensing. The device includes an 8-bit timer with hardware prescaler, a 16-bit timer, and an Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART) for serial communication.
The PIC16LF1554 uses a RISC-based core executing most instructions in a single clock cycle, achieving 32 MIPS throughput at 32MHz. Hardware CVD applies a precise time-controlled charge transfer to the sense electrode, dramatically improving touch SNR versus firmware loops. The 14-pin SOIC (Small Outline Integrated Circuit) package offers a balance between board area and ease of hand-soldering for prototyping and low-to-medium volume production.
Typical applications include capacitive touch keypads for appliances and consumer electronics, low-power IoT sensor nodes with battery life measured in years, human-machine interface (HMI) modules with sliders and proximity wake, and general-purpose 8-bit embedded control where deterministic behavior and low sleep current are paramount. The 14-pin footprint suits space-constrained PCBs while still providing adequate I/O for most simple control loops.
When designing with the PIC16LF1554, configure CVD timing in the ADCON registers for optimum SNR and use guard rings around sense electrodes to suppress moisture-induced false touches. For battery applications, leverage the XLP sleep modes (down to ~30 nA typical) and enable the internal LFINTOSC to operate below 32MHz during sleep to minimize wake-up energy.
This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes not consolidated on any single manufacturer or distributor product page.
Alternativas directas para PIC16LF1554-I/SL — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC16LF1554-I/SL (mismo factor de forma y huella) — difiere en Package, ADC, Core Architecture, Operating Temperature, Program Memory (Flash).
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16LF1554-E/SL
✅ Sustitución directa✓ En stock
$1.08 / unidad
Ver hoja de datos →PIC16LF1554-I/ML
✅ Sustitución directa✓ En stock
$0.84 / unidad
Ver hoja de datos →PIC16LF1559-I/SL
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC16LF1455-I/SL
✅ Sustitución directa✓ En stock
$1.62 / unidad
Ver hoja de datos →PIC16LF1705-I/SL
✅ Sustitución directa✓ En stock
$1.07 / unidad
Ver hoja de datos →PIC16F1554-I/SL
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC16LF1554-I/SL Valores máximos y características eléctricas
| Product Family | PIC16LF155x (XLP) |
| Core Architecture | 8-bit PIC RISC (14-bit instruction word) |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| SRAM | 512 bytes |
| Maximum CPU Speed | 32 MHz (32 MIPS) |
| Internal Oscillator | 32 MHz (±1% typical accuracy) |
| Supply Voltage Range | 1.8 V to 3.6 V |
| ADC | 2 x 10-bit (up to 11 analog channels) |
| ADC Hardware Feature | Automated CVD (Capacitive Voltage Divider) |
| Timers | 1 x 8-bit, 1 x 16-bit |
| Communication Interfaces | 1 x EUSART |
| I/O Pins | 12 |
| Touch Support | mTouch hardware CVD |
| Encapsulado | 14-pin SOIC (SL) |
| Temperatura de funcionamiento | -40C to +85C (Industrial) |
| Tipo de montaje | Surface Mount |
| Nivel MSL | 1 |
| Estado RoHS | Compliant |
| Lead-Free | Yes |
Configuración de pines de PIC16LF1554-I/SL
| Pin 1 | RA3/MCLR/VPP — Master Clear (Reset) / Programming voltage / GPIO RA3 |
| Pin 2 | RC5 — GPIO RC5 / analog input |
| Pin 3 | RC4 — GPIO RC4 / analog input |
| Pin 4 | RC3 — GPIO RC3 / analog input / CVD channel |
| Pin 5 | RC2 — GPIO RC2 / analog input / CVD channel |
| Pin 6 | RC1 — GPIO RC1 / analog input / CVD channel / EUSART TX |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RC0 — GPIO RC0 / analog input / CVD channel / EUSART RX |
| Pin 9 | RA2 — GPIO RA2 / analog input / CVD channel |
| Pin 10 | RA1 — GPIO RA1 / analog input / CVD channel / ADC reference |
| Pin 11 | RA0 — GPIO RA0 / analog input / CVD channel |
| Pin 12 | RA5 — GPIO RA5 |
| Pin 13 | RA4 — GPIO RA4 |
| Pin 14 | VDD — Positive power supply |
Aplicaciones típicas
PIC16LF1554-I/SL es adecuado para 7 aplicacións: Capacitive Touch Keypads, Battery-Powered IoT Sensor Nodes, Home Appliance HMI Controls, Wearable Fitness Trackers, Industrial Sensor Signal Conditioning, Automotive Interior Lighting Controllers, Smart Home Touch Panels.
Capacitive Touch Keypads
The PIC16LF1554-I/SL is purpose-built for capacitive touch user interfaces thanks to its hardware CVD (Capacitive Voltage Divider) and dual 10-bit ADCs with up to 11 analog channels. The CVD hardware applies a timed charge transfer that suppresses noise, allowing reliable touch detection through plastic overlays up to several millimeters thick or in humid environments. The 32 MIPS core executes mTouch algorithms fast enough for simultaneous multi-button scanning plus proximity wake. The XLP 1.8-3.6V operation makes the device ideal for battery-powered remote controls and sealed appliance keypads where mechanical switches would fail due to moisture or wear.
Recomendado
Battery-Powered IoT Sensor Nodes
The PIC16LF1554-I/SL's XLP architecture delivers sleep currents measured in nanoamps, enabling multi-year battery life from a single coin cell. The 32 MHz internal oscillator eliminates an external crystal, reducing BOM cost and standby power. The 1.8-3.6V operating range matches two AA alkaline cells or a single CR2032 lithium coin cell directly, without an LDO. Designers can wake the MCU on ADC threshold crossings to monitor temperature, humidity, or other analog sensors and transmit bursts via the EUSART. The 7 KB Flash supports small TCP/IP-over-UART stacks or simple LoRaWAN-like protocols for wireless sensor reporting.
Recomendado
Home Appliance HMI Controls
Front-panel controls for washing machines, dishwashers, ovens, and microwaves increasingly rely on capacitive touch sliders rather than mechanical knobs. The PIC16LF1554-I/SL integrates two 10-bit ADCs and hardware CVD that survives the EMI generated by motor inverters and switched-mode power supplies common in appliances. The 14-pin SOIC is rugged enough for high-volume reflow assembly, and the industrial -40C to +85C temperature range covers unheated and moderately heated enclosures. The EUSART links the MCU to a main control board for button-press reporting and LED ring control, keeping the touch MCU on a small satellite board for easier EMC compliance.
Recomendado
Wearable Fitness Trackers
Compact wearable devices demand ultra-low-power 8-bit MCUs to maximize battery life while handling simple user inputs and sensor reads. The PIC16LF1554-I/SL's XLP sleep current below 50 nA (typical) makes it ideal for always-on wearables where the device spends most of its time in sleep and wakes briefly on tap or proximity events. The 32 MHz performance supports on-the-fly heart-rate signal processing using the dual 10-bit ADCs to capture PPG waveforms from an analog front end. The 14-pin SOIC footprint occupies roughly 50 mm² including passives, fitting inside thin wristbands and patches.
Recomendado
Industrial Sensor Signal Conditioning
Industrial 4-20 mA loop-powered sensors, RTD transmitters, and strain-gauge bridges require an MCU that can digitize small analog signals accurately while consuming very little power. The PIC16LF1554-I/SL's dual 10-bit ADCs allow simultaneous differential and single-ended measurements, supporting bridge excitation and temperature compensation in the same firmware loop. The XLP architecture draws microamps, enabling 4-20 mA loop operation without starving the rest of the sensor. The 1.8-3.6V range directly accepts the loop voltage after a simple shunt regulator, eliminating additional power-conditioning stages.
Recomendado
Automotive Interior Lighting Controllers
Ambient LED strips, dome lights, and footwell illuminators in modern vehicles use capacitive touch to dim and color-tune. The PIC16LF1554-I/SL's hardware CVD handles touch through plastic lens covers that are several millimeters thick, and its automotive temperature tolerance is available in the -E extended-temperature variant for under-dash installations. The EUSART links to a CAN or LIN bus controller for body-network integration. Note: this part is not AEC-Q100 qualified; for safety-critical or under-hood applications, pair it with an automotive-grade CAN MCU and use the PIC16LF1554 for the touch satellite only.
Recomendado
Smart Home Touch Panels
Wall-mounted smart-home control panels rely on capacitive sliders for volume, brightness, and color-temperature adjustment. The PIC16LF1554-I/SL's hardware CVD reliably detects slider position and tap gestures even with wet or dirty hands, while the EUSART communicates position data to a host processor running the home-automation stack. The 14-pin SOIC fits behind a thin glass overlay, and the XLP low sleep current allows the panel to remain always-on without draining the backup battery. Multiple PIC16LF1554 devices can be cascaded for larger touch zones or keypad-plus-slider combinations without master-slave overhead.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16LF1554-I/SL — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16LF1554-E/SL | PIC16LF1554-I/ML | PIC16LF1559-I/SL | PIC16LF1455-I/SL | PIC16LF1705-I/SL | PIC16F1554-I/SL |
|---|---|---|---|---|---|---|---|
| Package | 14-pin SOIC (SL) | 14-pin SOIC (SL) - same | 16-pin QFN (ML) - different | 14-pin SOIC (SL) - same | 14-pin SOIC (SL) - same | 14-pin SOIC (SL) - same | 14-pin SOIC (SL) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 7 KB | 7 KB | 7 KB | 14 KB | 14 KB | 14 KB | 7 KB |
| SRAM | 512 B | 512 B | 512 B | 1 KB | 1 KB | 1 KB | 512 B |
| ADC | 2 x 10-bit | 2 x 10-bit | 2 x 10-bit | 2 x 10-bit | 1 x 10-bit | 1 x 10-bit | 2 x 10-bit |
| Capacitive Touch Hardware | Yes (CVD) | Yes (CVD) | Yes (CVD) | Yes (CVD) | No | No | Yes (CVD) |
| 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 | 2.3 V to 5.5 V |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| USB Support | No | No | No | No | Yes (USB 2.0 FS) | No | No |
| Approx. Price (1k) | $0.92 | ~$0.95 | ~$0.95 | ~$1.10 | ~$1.20 | ~$1.30 | ~$0.95 |
Diferenciadores clave
- Dual 10-bit ADC with hardware CVD (frente a PIC16LF1455-I/SL)
- Lower-voltage XLP operation (frente a PIC16F1554-I/SL)
- Optimized for capacitive touch (11 channels) (frente a PIC16LF1705-I/SL)
- Compact 14-pin SOIC for space-constrained designs (frente a PIC16LF1554-I/ML)
Notas de diseño
Capacitive touch via hardware CVD requires careful PCB layout to achieve reliable SNR. Route sense traces as short, narrow, guarded paths and surround each touch electrode with a ground-hatched guard ring connected to a dedicated quiet ground pin. Keep sense traces away from switching power traces and high-current LEDs to avoid injected noise. Add a series resistor (typically 1-10 kohm) close to the MCU pin to suppress ESD and high-frequency EMI. Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the VDD pin; add a 10 uF bulk capacitor if the supply has high impedance at the touch-sampling frequency.
To minimize sleep current in XLP applications, disable the ADC (ADCON0.ADON=0), switch to LFINTOSC (31 kHz) before sleep, and clear the BOR bit in the configuration register if the application tolerates brown-out events. Use IOC (Interrupt-On-Change) on a wake-up pin to return from sleep without external wake-up circuitry. Estimated: typical sleep current with ADC disabled and LFINTOSC active is ~30 nA, giving a CR2032 coin cell (220 mAh) a theoretical life of ~800 years in deep sleep - in practice limited by shelf life.
For the 14-pin SOIC footprint, place the 100 nF VDD decoupling capacitor within 5 mm of pin 14 with a short, wide trace to VDD. Use a ground plane on the opposite PCB layer directly under the MCU, stitching vias around the IC perimeter. Keep the MCLR pin (pin 1) either tied directly to VDD through a 10 kohm pull-up or, if in-circuit debugging is needed, connected via the ICSP header. Pin 1 is also the high-voltage programming entry, so avoid routing sensitive analog signals near it.
When using the EUSART at 115200 baud or higher, place a 100 ohm series resistor at RC4 (RX) if the trace length exceeds 50 mm, to damp ringing from cable reflections. For capacitive touch sensing, sample the ADC with a fixed acquisition time (ACQT bits) appropriate for the source impedance - higher-impedance sense electrodes require longer acquisition windows. CVD operation is sensitive to clock jitter, so disable clock switching (IRCF and SCS bits) during touch scanning and use the dedicated 32 MHz HFINTOSC for consistent timing.
Información de cumplimiento
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - not recommended for safety-critical or under-hood automotive applications without additional qualification. Lead-free and halogen-free per Microchip material declaration.
