PIC18LF8393-I/PT - 8-bit PIC MCU, 40MHz, 8KB Flash, LCD | Microchip
Référence : PIC18LF8393-I/PT ✓ Actif| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour PIC18LF8393-I/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC18LF8393-I/PT (même facteur de forme et même empreinte) — différant par Package, ADC, Core Architecture, Operating Temperature, I/O Pins.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18LF8390-I/PT
✅ Remplacement direct✓ En stock
$2.1 / unité
Voir la fiche technique →PIC18LF6680-I/PT
✅ Remplacement direct✓ En stock
$12.85 / unité
Voir la fiche technique →PIC18LF6585-I/PT
✅ Remplacement direct✓ En stock
$5.31 / unité
Voir la fiche technique →PIC18LF6525-I/PT
✅ Remplacement direct✓ En stock
$6.2 / unité
Voir la fiche technique →PIC18LF6622-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18LF8393-I/PT Valeurs maximales et caractéristiques électriques
| 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 |
| Boîtier | 80-pin TQFP (PT), 12x12 mm |
| Type de montage | Surface Mount |
| Plage de température de fonctionnement | -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) |
Guide de configuration des broches du PIC18LF8393-I/PT 80-pin tqfp (pt), 12x12 mm
Configuration des broches du PIC18LF8393-I/PT (boîtier 80-pin tqfp (pt), 12x12 mm). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour PIC18LF8393-I/PT.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
PIC18LF8393-I/PT convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18LF8393-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Integrated 192-segment LCD driver (vs PIC18LF6680-I/PT)
- On-chip 12-bit ADC (vs PIC18LF6525-I/PT)
- Wide-voltage 2.0 V-5.5 V operation (vs PIC18LF6622-I/PT)
Notes de conception
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.
Informations de conformité
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.