PIC18LF8393-I/PT - 8-bit PIC MCU, 40MHz, 8KB Flash, LCD | Microchip
N.º de pieza: PIC18LF8393-I/PT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $7.2 | $7,20 |
| 10 | $6.48 | $64,80 |
| 100 | $5.76 | $576,00 |
| 250 | $5.32 | $1.330,00 |
| 500 | $4.96 | $2.480,00 |
PIC18LF8393-I/PT Descripción general
Key features include 54 digital I/O pins, integrated I2C/SPI/UART/USART peripherals, nanoWatt power-management technology for ultra-low-power operation, and on-chip LCD driver hardware that eliminates the need for an external segment-driver IC. The 80-pin TQFP footprint exposes most of the PIC18F8393's peripheral set, including the LCD segment pins, ADC channels, and communication buses.
The PIC18LF8393 belongs to Microchip's PIC18F high-performance 8-bit architecture with an enhanced Harvard RISC core, 16-bit instructions, and a 32-level hardware stack. The 'LF' prefix indicates a wide-voltage (2.0V-5.5V) variant suitable for battery-powered designs, while the nanoWatt technology provides multiple low-power sleep modes that make the device practical for always-on metering and remote-display applications.
Typical applications include human-machine interface (HMI) panels with integrated LCD glass, electronic metering (energy, gas, water) with on-glass numeric displays, medical infusion pumps and glucose meters with segment displays, industrial controllers with local status displays, and automotive instrument clusters with segment-style gauges. The wide voltage range also makes the part suitable for portable 3.3V and 5V mixed-rail designs.
When designing with this device, allocate PCB area for the LCD bias-generation capacitors and ensure the trace routing keeps the LCD segment pins separated from high-frequency digital lines to minimize display artifacts. Code-development is supported by MPLAB X IDE and the MPLAB XC8 compiler, with extensive library support for the on-chip LCD controller.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternativas directas para PIC18LF8393-I/PT — 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 PIC18LF8393-I/PT (mismo factor de forma y huella) — difiere en Package, ADC, Core Architecture, Operating Temperature, I/O Pins.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC18LF8390-I/PT
✅ Sustitución directa✓ En stock
$2.1 / unidad
Ver hoja de datos →PIC18LF6680-I/PT
✅ Sustitución directa✓ En stock
$12.85 / unidad
Ver hoja de datos →PIC18LF6585-I/PT
✅ Sustitución directa✓ En stock
$5.31 / unidad
Ver hoja de datos →PIC18LF6525-I/PT
✅ Sustitución directa✓ En stock
$6.2 / unidad
Ver hoja de datos →PIC18LF6622-I/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC18LF8393-I/PT Valores máximos y características eléctricas
| Core | PIC 8-bit RISC |
| Core Architecture | PIC18F |
| Program Memory Type | Flash |
| Program Memory Size | 8 KB (4K x 16) |
| RAM Size | 768 B |
| Maximum CPU Speed | 40 MHz |
| Supply Voltage Range | 2.0 V to 5.5 V (LF wide-voltage) |
| Operating Voltage (typical) | 4.2 V to 5.5 V (industrial spec) |
| Number of I/O Pins | 54 |
| ADC | 12-bit, multi-channel |
| LCD Driver | Integrated, up to 192 segments |
| Communication Interfaces | I2C, SPI, UART/USART |
| Encapsulado | 80-pin TQFP (PT), 12x12 mm |
| Tipo de montaje | Surface Mount |
| Rango de temperatura de funcionamiento | -40C to +85C (industrial, 'I') |
| Power-Saving Technology | nanoWatt (multiple low-power sleep modes) |
| Lead-Free / RoHS | Lead-free, RoHS compliant (per package suffix PT) |
Guía de configuración de pines de PIC18LF8393-I/PT 80-pin tqfp (pt), 12x12 mm
Configuración de pines para PIC18LF8393-I/PT (encapsulado 80-pin tqfp (pt), 12x12 mm). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para PIC18LF8393-I/PT.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
PIC18LF8393-I/PT es adecuado para 6 aplicacións: Electronic Metering with Glass LCD, Industrial HMI / Operator Panels, Medical Infusion Pumps and Glucose Meters, Automotive Instrument Clusters (Segment Style), Portable Consumer Appliances with Segment Display, Battery-Powered IoT Sensor Nodes with Local Display.
Electronic Metering with Glass LCD
The PIC18LF8393-I/PT is well suited to single-phase energy, gas, and water meters where a 192-segment LCD glass provides numeric and icon readouts. Its integrated LCD driver eliminates external segment-driver ICs, while the 12-bit ADC digitizes current-sense and voltage-sense signals at metrological accuracy. The 'LF' wide-voltage range (2.0V-5.5V) lets the part run directly from a battery or from a small step-down regulator, and the nanoWatt sleep modes keep idle power below 1 uA in always-on metering installations. Code size is small enough (8KB Flash) to fit the IEC 62056-21 / DLMS metering stack comfortably, and the 80-pin TQFP leaves enough GPIO for tamper detection and optical UART.
Recomendado
Industrial HMI / Operator Panels
Factory-floor HMI panels benefit from the PIC18LF8393-I/PT's integrated 192-segment LCD driver and 54 GPIO, which can drive a multi-row display plus keypad matrix without a second driver IC. The 12-bit ADC reads 4-20 mA loop inputs and potentiometers for setpoint entry, while the I2C/SPI/UART links connect to the host PLC or to a daughter RF module. Industrial-grade -40C to +85C operation handles unheated enclosures, and the 80-pin TQFP footprint gives designers the freedom to share the PCB layout between 8KB and 48KB Flash variants of the PIC18F839x/PIC18F652x families, easing product-line scalability.
Recomendado
Medical Infusion Pumps and Glucose Meters
Portable medical devices such as insulin pumps and glucose meters pair naturally with the PIC18LF8393-I/PT because the 192-segment LCD driver renders multi-line segment displays directly, while the 12-bit ADC digitizes electrochemical sensor strips or pressure transducers at the resolution required for clinical dosing accuracy. The 'LF' 2.0V-5.5V operation lets the same firmware run on a single 3.3V Li-ion cell, and the nanoWatt sleep modes deliver multi-year battery life when the pump is idle. The 54 GPIO and three serial buses (I2C/SPI/UART) support BLE radio modules, RTC chips, and buzzer drivers without bus contention.
Recomendado
Automotive Instrument Clusters (Segment Style)
Segment-LCD automotive dashboards - fuel, temperature, gear indicator, odometer - can use the PIC18LF8393-I/PT to replace a separate LCD driver IC. The 192-segment capacity covers a full cluster, and the 12-bit ADC reads resistive fuel-level and thermistor inputs with adequate resolution. Designers can pair it with a CAN-transceiver companion IC to bridge the cluster to the vehicle CAN bus. Note that AEC-Q100 qualified parts in this family carry a different part number - the I/PT 'I' industrial suffix is suitable for non-automotive cabin modules but not for under-hood AEC-Q100 systems.
Recomendado
Portable Consumer Appliances with Segment Display
Kitchen appliances (rice cookers, induction cookers, microwaves) and personal-care devices use the PIC18LF8393-I/PT to drive a 7-segment-style LCD while monitoring temperature and humidity through the 12-bit ADC. The PIC18F Harvard RISC core executes control loops at 40 MHz, and the on-chip LCD module handles blinking icons and bar-graph readouts without CPU intervention. The 'LF' wide-voltage tolerance and industrial temperature range suit the harsh thermal environment inside an appliance chassis. The 80-pin TQFP simplifies layout across SKUs that differ only in Flash size within the same family.
Recomendado
Battery-Powered IoT Sensor Nodes with Local Display
IoT sensor nodes that report a value on a small segment-LCD while sleeping for years on a coin cell benefit from the PIC18LF8393-I/PT's nanoWatt technology and integrated LCD driver. The 12-bit ADC reads analog sensors (temperature, light, soil moisture) and the I2C/SPI interfaces connect to digital sensors and a sub-GHz or BLE radio. Operating from 2.0V to 5.5V lets the design accept a wide variety of battery chemistries including 3.3V Li-FeS2. The 54 GPIO are sufficient to multiplex a keypad and multiple indicator LEDs in addition to the segment LCD.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC18LF8393-I/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC18LF8390-I/PT | PIC18LF6680-I/PT | PIC18LF6585-I/PT | PIC18LF6525-I/PT | PIC18LF6622-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-80 (PT) 12x12 mm | TQFP-80 (PT) 12x12 mm - same | TQFP-80 (PT) 12x12 mm - same | TQFP-80 (PT) 12x12 mm - same | TQFP-80 (PT) 12x12 mm - same | TQFP-80 (PT) 12x12 mm - same |
| Core / Architecture | 8-bit PIC18F | 8-bit PIC18F - same | 8-bit PIC18F - same | 8-bit PIC18F - same | 8-bit PIC18F - same | 8-bit PIC18F - same |
| Flash Program Memory | 8 KB | 8 KB | 16 KB | 48 KB | 48 KB | 64 KB |
| RAM | 768 B | 768 B | 3328 B | 3328 B | 3328 B | 3860 B |
| Integrated LCD Driver | Yes (up to 192 segments) | No | No | No | No | No |
| Integrated ADC | 12-bit | None | 10-bit | 12-bit | 10-bit | 10-bit |
| Maximum CPU Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 25 MHz |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V - same | 2.0 V to 5.5 V - same | 2.0 V to 5.5 V - same | 2.0 V to 5.5 V - same | 2.0 V to 5.5 V - same |
Diferenciadores clave
- Integrated 192-segment LCD driver (frente a PIC18LF6680-I/PT)
- On-chip 12-bit ADC (frente a PIC18LF6525-I/PT)
- Wide-voltage 2.0 V-5.5 V operation (frente a PIC18LF6622-I/PT)
Notas de diseño
Estimated: at 40 MHz and 5 V supply, active current for the PIC18LF8393-I/PT is approximately 15-20 mA. Put a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pair and a 10 uF bulk capacitor near the package. For battery-powered metering applications use the nanoWatt Sleep mode with the LCD driver enabled; this typically drops quiescent current below 5 uA while the segment LCD remains refreshed.
Route the LCD segment and common signals away from switching nodes (DC-DC converters, IGBT gate drives, oscillator traces) because the LCD pins are sensitive to high-frequency noise coupling which can show as display ghosting. Keep at least 5 mm between LCD traces and noisy traces, and place a guard ground trace between LCD and digital switching regions. Use a 4-layer PCB with a continuous ground plane beneath the part for clean LCD bias generation.
Do not exceed the maximum output current of any single I/O pin (typically 25 mA sink/source) or the total VDD current budget when driving multiple LED backlights or relays - this is a common mistake that causes latch-up on high-pin-count TQFP parts. Also ensure the ICDSP / PGD / PGC pins are not pulled low at reset, otherwise the part will enter debug mode and not boot into the user application. Validate the LCD charge-pump capacitor value (typically 1 uF X7R) against the segment count actually used.
Información de cumplimiento
RoHS and lead-free per Microchip product page ('PT' suffix denotes lead-free TQFP). AEC-Q100 not applicable for this industrial-temperature grade; Microchip offers automotive-qualified variants in the same family with separate part numbers.