PIC18F83J90-I/PT - 8KB Flash LCD MCU, 80-TQFP | Microchip
Référence : PIC18F83J90-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.85 | $6,85 |
| 10 | $6.18 | $61,80 |
| 100 | $5.49 | $549,00 |
| 500 | $4.95 | $2 475,00 |
| 1 000 | $4.42 | $4 420,00 |
PIC18F83J90-I/PT Présentation
An 8-bit microcontroller is a microprocessor with an internal data path and ALU width of eight bits, optimized for cost-sensitive embedded control. Within the broader taxonomy, this device is a Microcontroller Unit (MCU) -> 8-bit MCU -> PIC18 family -> PIC18J sub-family (nanoWatt XLP + LCD variant). The LCD driver and nanoWatt XLP low-power technology make this PIC18 member a frequent choice for battery-powered, segment-display products such as meters and thermostats.
Key features include 8KB (4K x 16) of self-programmable Flash, 1KB RAM, integrated 10-bit ADC (up to 12 channels), two analog comparators, two UART/USART, SPI, I2C (MSSP), 4 timers, a parallel slave port, and an on-chip LCD driver that can typically drive up to 192 segments (device-dependent). The industrial -40C to +85C temperature grade and 67 I/O lines allow direct connection to keypads, displays, sensors, and external memory or communication buses.
The PIC18J core delivers hardware multiplication, a 16-bit wide instruction path, and nanoWatt XLP technology with sub-microamp sleep currents, plus an ultra-low-power real-time clock/calendar mode. The integrated segmented LCD controller eliminates the need for an external driver IC, reducing BOM cost and PCB area in human-machine-interface products.
Typical applications include handheld meters, thermostats, home security panels, medical instruments, utility metering, and industrial control with LCD display. The wide I/O count and segment-LCD controller suit products that need both a user panel and multiple sensor or communication interfaces.
Designers should provide proper decoupling (100 nF near each VDD pair plus a bulk 10 uF), keep analog traces short and guarded when using the ADC, and use the ICD/ICSP programming pins for in-circuit debugging via MPLAB tools.
This page combines distributor pricing, drop-in alternatives from the Site MPN list, and practical design notes not found in the manufacturer datasheet, giving engineers a faster engineering decision path.
Alternatives de remplacement direct pour PIC18F83J90-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 PIC18F83J90-I/PT (même facteur de forme et même empreinte) — différant par Core Architecture, I/O Pins, Program Memory (Flash), Operating Temperature, Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F85J90-I/PT
✅ Remplacement direct✓ En stock
$4.5 / unité
Voir la fiche technique →PIC18F86J90-I/PT
✅ Remplacement direct✓ En stock
$2.86 / unité
Voir la fiche technique →PIC18F83J90T-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F65J90-I/PT
✅ Remplacement direct✓ En stock
$4.72 / unité
Voir la fiche technique →PIC18F84J90-I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$3.1 / unité
Voir la fiche technique →PIC18F63J90-I/PT
✅ Remplacement direct✓ En stock
$3.75 / unité
Voir la fiche technique →PIC18F83J90-I/PT Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC18 (8-bit RISC, 16-bit instruction path) |
| Family | PIC18J (nanoWatt XLP + LCD) |
| Program Memory (Flash) | 8 KB (4K x 16) |
| RAM | 1024 bytes |
| Maximum CPU Frequency | 40 MHz (10 MIPS) |
| Operating Voltage (VDD) | 2.0 V to 3.6 V |
| I/O Pins | 67 (digital) + LCD segment pins |
| LCD Segment Driver | Integrated, up to ~192 segments (device-dependent) |
| ADC | 10-bit, multi-channel (12 channels typical) |
| Analog Comparators | 2 |
| Timers | 4 (8-bit / 16-bit mix) |
| Communication | 2x UART, SPI, I2C (MSSP) |
| Parallel Slave Port | Yes |
| Boîtier | 80-pin TQFP (PT), 12x12 mm, 1 mm height |
| Température de fonctionnement | -40C to +85C (Industrial, -I) |
| Type de montage | Surface Mount |
| Niveau MSL | 3 (per JEDEC J-STD-020) |
| Statut RoHS | Compliant |
| Programming/Debug | ICSP / ICD via MPLAB |
Configuration des broches de PIC18F83J90-I/PT
| Broche 1 | SEG0 — LCD segment output 0 |
| Broche 2 | SEG1 — LCD segment output 1 |
| Broche 3 | SEG2 — LCD segment output 2 |
| Broche 4 | SEG3 — LCD segment output 3 |
| Broche 5 | SEG4 — LCD segment output 4 |
| Broche 6 | SEG5 — LCD segment output 5 |
| Broche 7 | SEG6 — LCD segment output 6 |
| Broche 8 | SEG7 — LCD segment output 7 |
| Broche 9 | SEG8 — LCD segment output 8 |
| Broche 10 | SEG9 — LCD segment output 9 |
| Broche 11 | VDD — Positive supply voltage (2.0-3.6 V) |
| Broche 12 | VSS — Ground reference |
| Broche 13 | OSC1/CLKIN — Oscillator input / external clock input |
| Broche 14 | OSC2/CLKOUT — Oscillator output |
| Broche 15 | MCLR — Master clear reset (active low) |
| Broche 16 | RA0/AN0 — Port A bit 0 / analog input 0 |
| Broche 17 | RA1/AN1 — Port A bit 1 / analog input 1 |
| Broche 18 | RA2/AN2 — Port A bit 2 / analog input 2 |
| Broche 19 | RA3/AN3 — Port A bit 3 / analog input 3 |
| Broche 20 | RA4 — Port A bit 4 |
| Broche 21 | RA5/AN4 — Port A bit 5 / analog input 4 |
| Broche 22 | RA6 — Port A bit 6 |
| Broche 23 | RA7 — Port A bit 7 |
| Broche 24 | VSS — Ground |
| Broche 25 | RB0/INT0 — Port B bit 0 / external interrupt 0 |
| Broche 26 | RB1/INT1 — Port B bit 1 / external interrupt 1 |
| Broche 27 | RB2/INT2 — Port B bit 2 / external interrupt 2 |
| Broche 28 | RB3 — Port B bit 3 |
| Broche 29 | RB4 — Port B bit 4 |
| Broche 30 | RB5 — Port B bit 5 |
| Broche 31 | RB6/PGC — Port B bit 6 / ICSP clock |
| Broche 32 | RB7/PGD — Port B bit 7 / ICSP data |
| Broche 33 | RC0 — Port C bit 0 |
| Broche 34 | RC1 — Port C bit 1 |
| Broche 35 | RC2 — Port C bit 2 |
| Broche 36 | RC3 — Port C bit 3 |
| Broche 37 | RC4 — Port C bit 4 |
| Broche 38 | RC5 — Port C bit 5 |
| Broche 39 | RC6/TX — Port C bit 6 / UART TX |
| Broche 40 | RC7/RX — Port C bit 7 / UART RX |
| Broche 41 | RD0 — Port D bit 0 |
| Broche 42 | RD1 — Port D bit 1 |
| Broche 43 | RD2 — Port D bit 2 |
| Broche 44 | RD3 — Port D bit 3 |
| Broche 45 | RD4 — Port D bit 4 |
| Broche 46 | RD5 — Port D bit 5 |
| Broche 47 | RD6 — Port D bit 6 |
| Broche 48 | RD7 — Port D bit 7 |
| Broche 49 | RE0/RD — Port E bit 0 / PSP read |
| Broche 50 | RE1/WR — Port E bit 1 / PSP write |
| Broche 51 | RE2/CS — Port E bit 2 / PSP chip select |
| Broche 52 | RE3 — Port E bit 3 |
| Broche 53 | RE4 — Port E bit 4 |
| Broche 54 | RE5 — Port E bit 5 |
| Broche 55 | RE6 — Port E bit 6 |
| Broche 56 | RE7 — Port E bit 7 |
| Broche 57 | RF0 — Port F bit 0 |
| Broche 58 | RF1 — Port F bit 1 |
| Broche 59 | RF2 — Port F bit 2 |
| Broche 60 | RF3 — Port F bit 3 |
| Broche 61 | RF4 — Port F bit 4 |
| Broche 62 | RF5 — Port F bit 5 |
| Broche 63 | RF6 — Port F bit 6 |
| Broche 64 | RF7 — Port F bit 7 |
| Broche 65 | RG0 — Port G bit 0 |
| Broche 66 | RG1 — Port G bit 1 |
| Broche 67 | RG2 — Port G bit 2 |
| Broche 68 | RG3 — Port G bit 3 |
| Broche 69 | RG4 — Port G bit 4 |
| Broche 70 | AVDD — Analog positive supply |
| Broche 71 | AVSS — Analog ground |
| Broche 72 | COM0 — LCD common output 0 |
| Broche 73 | COM1 — LCD common output 1 |
| Broche 74 | COM2 — LCD common output 2 |
| Broche 75 | COM3 — LCD common output 3 |
| Broche 76 | VLCD1 — LCD bias voltage 1 |
| Broche 77 | VLCD2 — LCD bias voltage 2 |
| Broche 78 | VLCD3 — LCD bias voltage 3 |
| Broche 79 | VDD — Positive supply voltage |
| Broche 80 | VSS — Ground |
Applications typiques
PIC18F83J90-I/PT convient pour 7 applications: Handheld Digital Multimeters, Programmable Thermostats, Home Security Panels, Utility Gas and Water Meters, Industrial Process Indicators, Medical Infusion Monitors, Consumer Appliance User Interfaces.
Handheld Digital Multimeters
The PIC18F83J90-I/PT is well-suited for handheld digital multimeters because its integrated LCD segment driver can drive a 3.5- to 4.5-digit numeric display directly, removing the need for an external LCD controller and saving BOM cost. With 8KB Flash and 1KB RAM, the MCU handles auto-ranging, RMS calculation, and EEPROM-trend storage easily. Its nanoWatt XLP sleep current below 1 uA lets handheld meters run for thousands of hours on a single 9V or AAA cell. The 67 I/O lines accept rotary switch, mode button, continuity buzzer, and serial-port signal inputs without external multiplexing.
Recommandé
Programmable Thermostats
For programmable thermostats, the PIC18F83J90-I/PT's on-chip LCD driver delivers the segment-based temperature, mode, and schedule readouts typical in wall-mount HVAC controllers. The 67 I/O lines accept keypad inputs, relay drivers for HVAC stages, and NTC thermistor connections through the 10-bit ADC. nanoWatt XLP technology keeps idle current under 1 uA, allowing the thermostat to draw from common-wire 24 VAC without bulky isolation. The 2.0-3.6 V supply range also suits battery-backed time-of-use retention across power outages.
Recommandé
Home Security Panels
The PIC18F83J90-I/PT fits home security panels because its 67 I/O lines handle multiple zone inputs, keypad scanning, siren drivers, and communication with central-station modems or wireless transceivers. Integrated LCD segment driver lets the panel show zone status, fault codes, and arm/disarm feedback without an external display IC. The PIC18J nanoWatt XLP deep-sleep mode keeps the panel in armed-standby below 1 uA while still allowing timer-based wake-up for periodic zone polling. Field firmware updates via ICSP simplify post-install updates and security patches.
Recommandé
Utility Gas and Water Meters
Utility gas and water meters benefit from the PIC18F83J90-I/PT's integrated LCD segment driver, which can drive the rolling-cubic-foot or cubic-meter display plus annunciators for leak, battery, and tamper flags without an external driver. The 10-bit ADC captures pulse-train flow-sensor inputs, while the nanoWatt XLP sleep current below 1 uA enables 10+ year battery life expected by utility AMR/AMI programs. The 67 I/O lines also accommodate optical tamper switches, valve-control outputs, and an optional wireless AMR module on a UART port.
Recommandé
Industrial Process Indicators
Industrial process indicators (tank level, pH, pressure, temperature) fit the PIC18F83J90-I/PT profile because the integrated LCD segment driver can drive 4- to 6-digit numeric displays plus status icons for alarm and relay state. The 10-bit ADC reads 4-20 mA loop or 0-10 V process signals through external resistor scaling; the 67 I/O lines drive relay outputs, 4-20 mA loop-power control, and keypad entry. nanoWatt XLP technology keeps field-powered loop indicators under tight thermal budgets.
Recommandé
Medical Infusion Monitors
Battery-powered medical infusion and patient monitors can leverage the PIC18F83J90-I/PT's integrated LCD segment driver for dose, rate, and alarm readouts, eliminating external display ICs and reducing patient-side leakage paths. The 67 I/O lines drive stepper-motor drivers for syringe pumps, watchdog alarm buzzers, and keypad input for clinical staff. The PIC18J nanoWatt XLP deep-sleep mode keeps the infusion pump in standby at sub-1 uA between dosing cycles. Note: medical IEC 60601-1 safety isolation must be addressed externally to the MCU.
Recommandé
Consumer Appliance User Interfaces
Washing machines, ovens, dishwashers, and similar white goods benefit from the PIC18F83J90-I/PT's on-chip LCD segment driver, which can drive cycle-status, timer, and temperature readouts without a separate display IC. The 67 I/O lines accept capacitive-touch buttons, rotary encoders, and triac-driven AC loads. PIC18J nanoWatt XLP standby current keeps ENERGY STAR standby budgets intact. The wide 2.0-3.6 V supply range simplifies integration with single-cell Li-ion backup for clock retention.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18F83J90-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F85J90-I/PT | PIC18F86J90-I/PT | PIC18F83J90T-I/PT | PIC18F65J90-I/PT | PIC18F63J90-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-80 (12x12 mm) | TQFP-80 (same) | TQFP-80 (same) | TQFP-80 (same) | TQFP-80 (same) | TQFP-80 (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC18J 8-bit | PIC18J 8-bit | PIC18J 8-bit | PIC18J 8-bit | PIC18J 8-bit | PIC18J 8-bit |
| Flash | 8 KB | 32 KB (+300%) | 64 KB (+700%) | 8 KB (same) | 32 KB (+300%) | 8 KB (same) |
| RAM | 1024 B | 2048 B (+100%) | 4096 B (+300%) | 1024 B (same) | 2048 B (+100%) | 1024 B (same) |
| I/O Pins | 67 | 67 (same) | 67 (same) | 67 (same) | 53 | 34 |
| LCD Driver | Integrated (~192 seg) | Integrated (~192 seg) | Integrated (~192 seg) | Integrated (~192 seg) | Integrated (less seg) | Integrated (less seg) |
| Operating Voltage | 2.0-3.6 V | 2.0-3.6 V | 2.0-3.6 V | 2.0-3.6 V | 2.0-3.6 V | 2.0-3.6 V |
| Max Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
Principaux différenciateurs
- Higher Flash headroom at same TQFP-80 footprint (vs PIC18F83J90T-I/PT)
- Maximum 67 I/O with integrated LCD (vs PIC18F63J90-I/PT)
- Industry-standard PIC18J core with nanoWatt XLP (vs Higher-pin-count PIC24/dsPIC alternatives)
Notes de conception
Decoupling: place a 100 nF X7R ceramic between each VDD/VSS pair (typically 4 VDD pins on TQFP-80) plus one 10 uF bulk capacitor near the MCU. For the analog AVDD/AVSS pair, use a separate 100 nF + 10 uF LC-filtered supply when using the ADC at high resolution. nanoWatt XLP sleep current below 1 uA requires proper decoupling during Sleep mode transitions - inadequate bypass can cause spurious wake-ups.
Layout for the LCD segment driver: route SEG and COM traces as short and parallel as possible to maintain equal segment drive impedance. Provide a guard ring around analog ADC inputs (AN0-ANx) tied to AVSS to suppress digital switching noise coupling into the 10-bit ADC. Keep the VLCD charge-pump capacitors (typically 1 uF X7R on VLCD1/2/3) within 5 mm of the respective pins to minimise ripple.
Do not confuse the PIC18F83J90 with the PIC18F83J11 family - they have different peripherals and different pin counts despite similar prefixes. Also note: PIC18F83J90 is in the J (3.3V) family, NOT the K (5V) family - operating above 3.6 V will damage the part. Industrial -I grade parts require -40C to +85C operating range; do not substitute -E grade parts in extended-temperature designs.
Crystal oscillator placement: keep the crystal within 5 mm of OSC1/OSC2 with short, equal-length traces and a ground guard ring. For 40 MHz operation, source a crystal with ESR < 30 ohm and load capacitance matching the configured OSCCON bits. If using the internal LF-INTOSC, leave OSC1/OSC2 as no-connect or drive with the configured HF-INTOSC output to avoid stray pickup.
Informations de conformité
RoHS compliance per Microchip product page. Lead-free TQFP (PT suffix) packaging per JEDEC J-STD-020 MSL-3. AEC-Q100 not applicable for industrial-grade microcontrollers; for automotive designs see PIC18FxxK90 automotive variants.