PIC18F86J90-I/PT - 8-Bit 48MHz 64KB Flash LCD MCU | Microchip
Teilenummer: PIC18F86J90-I/PT ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $4.42 | $4,42 |
| 10 | $4.05 | $40,50 |
| 100 | $3.62 | $362,00 |
| 500 | $3.21 | $1.605,00 |
| 1.000 | $2.86 | $2.860,00 |
PIC18F86J90-I/PT Übersicht
An 8-bit microcontroller (MCU) is a microprocessor core with an 8-bit data path, integrated program memory (Flash/ROM), data memory (RAM), and on-chip peripherals including timers, communication interfaces, and analog blocks. PIC18 microcontrollers follow Microchip's enhanced Harvard architecture, sitting within the broader hierarchy of microcontroller -> embedded MCU -> semiconductor device. The J-suffix indicates an ultra-low-power variant of the PIC18 family, designed with nanoWatt features such as multiple idle modes, low-power Timer1 oscillator, and dynamic switching between primary and timer-based clock sources for battery operation.
Key differentiating features include 70 I/O pins, an integrated segmented LCD controller with programmable bias and contrast, two USART modules, two MSSP (I2C/SPI) modules, a 12-bit A/D converter, and nanoWatt Technology for reduced sleep current. The 64 KB Flash (32K x 16) supports self-programmability and data EEPROM emulation, while the 4 KB RAM provides ample headroom for LCD buffer and communication stacks. Supply voltage is 4.2 V to 5.5 V as called out in the DigChip parametric record.
From an architectural standpoint, the PIC18F86J90 uses a 16-bit instruction word with a modified Harvard structure, giving 8 MHz instruction throughput per MIPS at the oscillator input and an instruction-cycle time of 4 oscillator cycles. Its 12-bit ADC and Capture/Compare/PWM modules make it well suited to mixed-signal metering and motor-control-class UI boards, while the parallel master port allows external memory expansion where the on-chip 64 KB Flash is insufficient. The -I temperature grade targets industrial environments, and the -PT package designation specifies the 12x12 mm TQFP-80 footprint used throughout the 80-pin PIC18F LCD family.
Typical applications include handheld meters (multi-parameter measurement with on-device LCD), thermostats and HVAC controllers, home security panels, portable medical devices, and utility metering products. The integrated LCD driver eliminates the need for an external display controller, simplifying BOM and PCB area in user-interface products that must display numerical readings or icons without a graphical TFT.
When designing with this MCU, allocate pin functions around the LCD segment allocations first; the segment lines share pins with general I/O and must be planned as a group before assigning pushbuttons, ADC inputs, or communication lines. The 4.2 V minimum supply rules out direct 3.3 V-only boards, so a boost or LDO is required when sourcing from a single Li-ion cell. Pair the MCU with a Microchip-compatible ICD or debugger (e.g., PICkit 3 or MPLAB ICD 4) using the ICSP interface.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes that complement the manufacturer datasheet's electrical tables.
Drop-in-Alternativen für PIC18F86J90-I/PT – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC18F86J90-I/PT (gleiche Bauform und Footprint) – abweichend in Core Architecture, Program Memory (Flash), I/O Pins, Operating Temperature, Package.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC18F87J90-I/PT
✅ Drop-In✓ Auf Lager
$6.1 / Stück
Datenblatt ansehen →PIC18F86J72-I/PT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC18F85J90-I/PT
✅ Drop-In✓ Auf Lager
$4.5 / Stück
Datenblatt ansehen →PIC18F85K90-I/PT
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
PIC18F86J90-I/PT Grenzwerte & elektrische Eigenschaften
| Core Architecture | PIC18 (8-bit, 16-bit instruction word) |
| Family | PIC18FxxJ90 LCD MCU family |
| CPU Speed | 48 MHz (12 MIPS) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| RAM | 4 KB |
| I/O Pins | 70 |
| Supply Voltage (Vdd) | 4.2 V to 5.5 V |
| Betriebstemperatur | -40 C to +85 C (industrial grade) |
| Gehäuse | 80-pin TQFP (12x12 mm) |
| Montageart | Surface Mount |
| On-chip Peripherals | Segmented LCD driver, USART x2, MSSP x2 (I2C/SPI), 12-bit ADC, CCP, PMP, nanoWatt power management |
| ROM Type | Flash |
| Datenbusbreite | 16-bit (instruction) / 8-bit (data) |
| RoHS-Status | Compliant |
| MSL-Level | 3 (168 hours) |
PIC18F86J90-I/PT 80-pin tqfp (12x12 mm) Pinbelegungsleitfaden
Pinbelegung für PIC18F86J90-I/PT (80-pin tqfp (12x12 mm)-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für PIC18F86J90-I/PT.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
PIC18F86J90-I/PT ist geeignet für 6 Anwendungs: Handheld Multi-Parameter Meters, Programmable Thermostats and HVAC Controllers, Home Security Panel User Interfaces, Portable Medical Devices, Utility Metering (Electricity / Water / Gas), Industrial Control Panels and Operator Interfaces.
Handheld Multi-Parameter Meters
The PIC18F86J90-I/PT's integrated segmented LCD driver makes it ideal for handheld multi-parameter meters that display temperature, pressure, humidity, or electrical readings on glass-mounted segment LCDs. Its 70 I/O pins let the design route multiple sensor inputs (via the 12-bit ADC), keypad scanning, and serial communication without external multiplexers. The 48 MHz / 12 MIPS core keeps display refresh responsive when simultaneously sampling several sensor channels. Compared to a discrete LCD driver solution, the on-chip controller saves BOM cost and PCB area - critical for battery-powered handheld form factors where the 4.2V-5.5V supply aligns with two-AA or single Li-ion plus boost designs.
Empfohlen
Programmable Thermostats and HVAC Controllers
Programmable thermostats rely on a low-power MCU driving a custom-segment LCD plus a keypad, relay drivers, and (often) a temperature sensor front-end. The PIC18F86J90-I/PT fits because its nanoWatt Technology provides multiple idle/sleep modes that drop current into the microamp range between UI events, preserving battery life during brownouts. The wide operating temperature (-40C to +85C) covers boiler-room and outdoor mounting requirements. With 4 KB of RAM, the MCU can hold schedule buffers and a seven-day program table in RAM without wearing Flash. Compared to higher-end Cortex-M0 alternatives, the 86J90 keeps cost low while still providing ample GPIO for relay and triac control.
Empfohlen
Home Security Panel User Interfaces
Home security alarm panels integrate a segment-LCD or icon LCD, a multi-zone key-fob reader, piezo buzzer, and serial link to the main control board. The PIC18F86J90-I/PT's 4 KB RAM and 12 MIPS throughput support keypad debouncing, zone-status display, and event-log scrolling without an RTOS. The two USART and two MSSP channels let the MCU talk simultaneously to the main panel bus and to a keypad or RF receiver chip. The 70 available I/O pins provide generous headroom for zone LEDs, status indicators, and tamper inputs. Compared to a discrete MCU + LCD driver solution, the integrated LCD controller reduces standby power and BOM cost.
Empfohlen
Portable Medical Devices
Portable medical devices such as blood-pressure cuffs, glucose meters, and pulse oximeters require a low-power MCU with a clear display and reliable ADC inputs. The PIC18F86J90-I/PT meets these needs with its integrated segmented LCD driver (no external display IC required), 12-bit ADC for analog front-ends, and nanoWatt Technology for battery-life compliance with IEC 60601 portable-device classifications. The 64 KB Flash is sized for embedded firmware plus optional Bluetooth-stack hooks or measurement-data buffers. Compared to a 32-bit Cortex-M0 design, the 8-bit F86J90 keeps the active current per measurement cycle lower, extending battery life on coin cells or AA packs.
Empfohlen
Utility Metering (Electricity / Water / Gas)
Utility metering products - electricity, water, and gas meters - demand a long-life MCU with on-chip segmented LCD for reading and tariff display, plus tamper-resistant I/O and a tamper detection input. The PIC18F86J90-I/PT is positioned by Microchip specifically for utility-metering applications, with 64 KB Flash for calibration tables and 4 KB RAM for accumulated usage registers. Its 48 MHz core delivers the throughput needed for cumulative pulse counting or ADC-based current sensing at meter-grade accuracy. The industrial temperature range (-40C to +85C) suits outdoor and basement-installed meters. Compared to off-the-shelf metering ASSPs, the F86J90 lets the meter maker retain full firmware control for tariffs and pricing regimes.
Empfohlen
Industrial Control Panels and Operator Interfaces
Industrial operator-interface panels commonly combine a character/segment LCD with pushbuttons, status LEDs, and a serial link to a PLC or motor drive. The PIC18F86J90-I/PT supports this with 70 I/O pins to drive the keypad matrix, status LEDs, and rotary encoder without external multiplexers, plus dual USART/MSSP channels for simultaneous HMI and field-bus communication. Its 4 KB RAM supports display buffer and command queue depth for protocol handling, while the 12 MIPS core keeps scan-loop latency short. Compared to dedicated HMI controllers, the F86J90 lets an OEM differentiate through custom UI firmware and protocol stacks at lower unit cost.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC18F86J90-I/PT – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC18F87J90-I/PT | PIC18F86J72-I/PT | PIC18F85J90-I/PT | PIC18F85K90-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-pin TQFP (12x12 mm) | 80-pin TQFP (12x12 mm) - same | 80-pin TQFP - same | 80-pin TQFP - same | 80-pin TQFP - same |
| CPU Speed | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 64 MHz (16 MIPS) |
| Supply Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 1.8 V to 5.5 V (wider range) |
| Integrated LCD Driver | Yes (segmented) | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Wichtigste Unterscheidungsmerkmale
- Largest Flash memory in the 80-pin LCD PIC18 J-family (vs. PIC18F86J72-I/PT)
- True drop-in 128 KB Flash upgrade path (vs. PIC18F87J90-I/PT)
- Industrial temperature grade integrated LCD driver (vs. PIC18F85J90-I/PT)
Designhinweise
Estimated: at 48 MHz with all peripherals active and LCD driver running, expect active current around 15-25 mA from a 5.0 V supply; in Sleep (nanoWatt) mode the MCU drops to single-digit microamps suitable for battery backup. Use Sleep during keypad idle periods and wake on interrupt or WDT timeout. With Vdd=5 V and a 32.768 kHz Timer1 oscillator, the RTC discipline function runs in Sleep and can keep the meter active for years on a single lithium primary cell.
The 80-pin TQFP at 0.5 mm lead pitch needs 4-6 mil trace/space rules with micro-via fan-out beneath the thermal pad. Place the 4.2-5.5 V bulk capacitor within 5 mm of the Vdd pins and the Vss plane stitched with multiple vias for low-impedance return. ICSP programming pins (PGC/PGD) must be brought out to a 2x3 or 1x6 header for in-circuit debug; do not place series resistors in the ICSP path or you will defeat the high-voltage programming mode.
Do not assume 3.3 V operation - the PIC18F86J90 is a 4.2 V-5.5 V part, so designs must include a boost or LDO when running from a single Li-ion cell. The LCD segment pins are multiplexed with general-purpose I/O, so design the pinout with the LCD allocation in mind before committing to keypad or sensor positions. Failure to disable the Watchdog Timer in software before Sleep will wake the MCU at the WDT overflow rather than an external interrupt, causing timing drift in metering loops.
Compliance-Informationen
RoHS and REACH compliance listed on Microchip product page. Industrial-grade -I temperature suffix does not imply AEC-Q100 automotive qualification; for AEC-Q100 LCD PIC18 parts see the PIC18FxxK90 automotive datasheet.