PIC18F86K90-E/PT - 8-Bit 64MHz XLP MCU 64KB Flash 80-TQFP | Microchip
MPN: PIC18F86K90-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $5.1 | $51.00 |
| 100 | $4.62 | $462.00 |
| 500 | $4.21 | $2,105.00 |
| 1,000 | $3.95 | $3,950.00 |
PIC18F86K90-E/PT Overview
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, a Harvard architecture, on-chip Flash, RAM and peripherals. Within the broader taxonomy, an 8-bit MCU belongs to microcontrollers, which sit under embedded processors, which sit under integrated circuits, which sit under semiconductors. The PIC18 family is Microchip's high-performance 8-bit line, and the XLP 18K sub-family adds nanoWatt XLP extreme-low-power technology for battery-powered products.
Key features include nanoWatt XLP sleep currents as low as 20 nA, a 16 MIPS performance at 64MHz, 64 KB Flash with self-programmability, and 1KB EEPROM for non-volatile data. Connectivity peripherals include I2C, SPI, UART/USART, and LINbus for in-vehicle networking. An integrated LCD driver supports up to 484 pixels for direct segment-LCD glass drive, removing the need for an external LCD controller in metering and appliance displays.
The PIC18F86K90-E/PT uses an enhanced PIC18 Harvard RISC core with 32-bit internal data paths fed from external 8-bit buses, paired with a flexible oscillator block that supports crystal, external clock and internal FRC sources. The CTMU, ADC, comparators and PWM/SCCP peripherals operate from the same low-power core, allowing deterministic control-loop and touch-sensing workloads without waking the CPU. Compared with older PIC18F8722-class parts, the K90 step adds nanoWatt XLP sleep modes and CTMU, while keeping the same address space layout for code migration.
Typical applications include battery-powered industrial meters with LCD and capacitive buttons, automotive body and climate controls, white goods with segment LCDs, and handheld medical devices that demand long battery life. The wide operating range also covers HVAC controls and security keypads where touch panels replace mechanical switches. The PIC18F86K90-E/PT is automotive-grade (E suffix), making it suitable for AEC-Q100 qualified designs.
When designing with this MCU, place a 100 nF decoupling capacitor close to each VDD pin and a bulk 10 uF on the main rail. Choose a low-ESR ceramic for VDD and tie unused I/O to defined logic levels to minimize IADDD leakage in XLP sleep modes. The MPLAB X IDE, MPLAB XC8 compiler and PIC18F-K90 peripheral libraries are the primary development toolchain.
This page synthesizes distributor pricing, drop-in TQFP-80 alternatives within the PIC18F K90 family, and practical low-power design guidance not always present on the manufacturer product page.
Drop-in alternatives for PIC18F86K90-E/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC18F86K90-E/PT (same form factor and footprint) — differing in Package, Core Architecture, LCD Driver, Low-Power Technology, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F86K90-I/PT
✅ Drop-In✓ In Stock
$4.32 / Unit
View Datasheet →PIC18F85K90-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F87K90T-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F85K90-E/PT
✅ Drop-In✓ In Stock
$3.62 / Unit
View Datasheet →PIC18F67K90-I/PT
✅ Drop-In✓ In Stock
$7.55 / Unit
View Datasheet →PIC18F86K90-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC18 RISC |
| Family | PIC XLP 18K (PIC18F K90) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| RAM | 4 KB |
| EEPROM | 1 KB (1K x 8) |
| Maximum CPU Frequency | 64 MHz |
| Performance | 16 MIPS (8 MIPS at 3V) |
| Number of I/O Pins | 69 |
| Package | 80-pin TQFP (12x12 mm, PT suffix) |
| Mounting Type | Surface Mount |
| Temperature Grade | Automotive (-40C to +125C, E suffix) |
| Connectivity | I2C, SPI, UART/USART, LINbus |
| LCD Driver | Integrated, up to 484 pixels |
| CTMU (Touch) | Up to 24 channels |
| RoHS Status | Compliant (per distributor listings) |
PIC18F86K90-E/PT Pin Configuration
| Pin 1 | RE0 — PORTE bit 0 / digital I/O |
| Pin 2 | RE1 — PORTE bit 1 / digital I/O |
| Pin 3 | RE2 — PORTE bit 2 / digital I/O |
| Pin 4 | RE3 — PORTE bit 3 / digital I/O |
| Pin 5 | RE4 — PORTE bit 4 / digital I/O |
| Pin 6 | RE5 — PORTE bit 5 / digital I/O |
| Pin 7 | RE6 — PORTE bit 6 / digital I/O |
| Pin 8 | RE7 — PORTE bit 7 / digital I/O |
| Pin 9 | VDD — Positive digital supply |
| Pin 10 | VSS — Digital ground |
| Pin 11 | RA0 — PORTA bit 0 / analog AN0 |
| Pin 12 | RA1 — PORTA bit 1 / analog AN1 |
| Pin 13 | RA2 — PORTA bit 2 / analog AN2 |
| Pin 14 | RA3 — PORTA bit 3 / analog AN3 |
| Pin 15 | RA4 — PORTA bit 4 |
| Pin 16 | RA5 — PORTA bit 5 / analog AN4 |
| Pin 17 | RA6 — PORTA bit 6 / oscillator |
| Pin 18 | RA7 — PORTA bit 7 / oscillator |
| Pin 19 | VSS — Digital ground |
| Pin 20 | VDD — Positive digital supply |
| Pin 21 | RB0 — PORTB bit 0 |
| Pin 22 | RB1 — PORTB bit 1 |
| Pin 23 | RB2 — PORTB bit 2 |
| Pin 24 | RB3 — PORTB bit 3 |
| Pin 25 | RB4 — PORTB bit 4 |
| Pin 26 | RB5 — PORTB bit 5 |
| Pin 27 | RB6 — PORTB bit 6 / ICSP clock |
| Pin 28 | RB7 — PORTB bit 7 / ICSP data |
| Pin 29 | VSS — Digital ground |
| Pin 30 | VDD — Positive digital supply |
| Pin 31 | RC0 — PORTC bit 0 |
| Pin 32 | RC1 — PORTC bit 1 |
| Pin 33 | RC2 — PORTC bit 2 |
| Pin 34 | RC3 — PORTC bit 3 / SCL |
| Pin 35 | RC4 — PORTC bit 4 / SDA |
| Pin 36 | RC5 — PORTC bit 5 |
| Pin 37 | RC6 — PORTC bit 6 / TX |
| Pin 38 | RC7 — PORTC bit 7 / RX |
| Pin 39 | VSS — Digital ground |
| Pin 40 | VDD — Positive digital supply |
| Pin 41 | RD0 — PORTD bit 0 |
| Pin 42 | RD1 — PORTD bit 1 |
| Pin 43 | RD2 — PORTD bit 2 |
| Pin 44 | RD3 — PORTD bit 3 |
| Pin 45 | RD4 — PORTD bit 4 |
| Pin 46 | RD5 — PORTD bit 5 |
| Pin 47 | RD6 — PORTD bit 6 |
| Pin 48 | RD7 — PORTD bit 7 |
| Pin 49 | VSS — Digital ground |
| Pin 50 | VDD — Positive digital supply |
| Pin 51 | RF0 — PORTF bit 0 / LCD segment |
| Pin 52 | RF1 — PORTF bit 1 / LCD segment |
| Pin 53 | RF2 — PORTF bit 2 / LCD segment |
| Pin 54 | RF3 — PORTF bit 3 / LCD segment |
| Pin 55 | RF4 — PORTF bit 4 / LCD segment |
| Pin 56 | RF5 — PORTF bit 5 / LCD segment |
| Pin 57 | RF6 — PORTF bit 6 / LCD segment |
| Pin 58 | RF7 — PORTF bit 7 / LCD segment |
| Pin 59 | AVDD — Analog positive supply |
| Pin 60 | AVSS — Analog ground |
| Pin 61 | RG0 — PORTG bit 0 / LCD COM |
| Pin 62 | RG1 — PORTG bit 1 / LCD COM |
| Pin 63 | RG2 — PORTG bit 2 / LCD COM |
| Pin 64 | RG3 — PORTG bit 3 / LCD COM |
| Pin 65 | RG4 — PORTG bit 4 / LCD COM |
| Pin 66 | RG5 — PORTG bit 5 / LCD COM |
| Pin 67 | RH0 — PORTH bit 0 |
| Pin 68 | RH1 — PORTH bit 1 |
| Pin 69 | RH2 — PORTH bit 2 |
| Pin 70 | RH3 — PORTH bit 3 |
| Pin 71 | RH4 — PORTH bit 4 |
| Pin 72 | RH5 — PORTH bit 5 |
| Pin 73 | RH6 — PORTH bit 6 |
| Pin 74 | RH7 — PORTH bit 7 |
| Pin 75 | VDD — Positive digital supply |
| Pin 76 | VSS — Digital ground |
| Pin 77 | RJ0 — PORTJ bit 0 |
| Pin 78 | RJ1 — PORTJ bit 1 |
| Pin 79 | RJ2 — PORTJ bit 2 |
| Pin 80 | RJ3 — PORTJ bit 3 |
Typical Applications
PIC18F86K90-E/PT is suitable for 6 applications: Battery-Powered LCD Electricity Meter, Automotive Climate and Body Control Modules, White-Good Front Panels with Capacitive Touch, Handheld Capillary Glucose or Pulse Oximeter, Industrial HVAC Keypad and Thermostat, Electronic Shelf Label & IoT Sensor Node.
Battery-Powered LCD Electricity Meter
The PIC18F86K90-E/PT drives a 7-segment LCD glass for residential or industrial utility meters while its CTMU scans up to 24 capacitive touch buttons for tamper detection and user setup. The internal LCD peripheral supports up to 484 pixels across 16 commons, eliminating an external segment-driver IC and shrinking the meter BOM. nanoWatt XLP keeps sleep current in the nanoamp range, allowing a single lithium primary cell to power the meter for 10+ years. The automotive-grade -E suffix also suits outdoor metering cabinets operating up to +125C.
Recommended
Automotive Climate and Body Control Modules
Vehicle HVAC and body controllers demand a wide VDD tolerance plus AEC-Q100 temperatures, both satisfied by the -E suffix of the PIC18F86K90-E/PT. The MCU's LINbus peripheral talks to in-vehicle body networks while the integrated PWM and capture/compare modules drive DC motors and stepper actuators for vent control. The 64 KB Flash holds module-level firmware plus bootloader, and 4 KB RAM manages multiple LIN frames in parallel. XLP sleep modes allow the cluster to drop below 1 mA when the bus is idle, satisfying parasitic current budgets for the OEM.
Recommended
White-Good Front Panels with Capacitive Touch
Washing machines, induction cooktops and microwave ovens increasingly replace mechanical buttons with capacitive touch, and the PIC18F86K90-E/PT is built for exactly that. CTMU measures touch via charge-time slope sampling on up to 24 pins, while the LCD driver simultaneously renders icons, segments and seven-segment digits. The 80-pin TQFP leaves plenty of I/O for relays, TRIAC drivers and analog feedback. The -E automotive temperature grade also handles the high ambient temperatures seen behind glass cooking surfaces.
Recommended
Handheld Capillary Glucose or Pulse Oximeter
Low-power medical instruments such as glucose meters and pulse oximeters rely on the PIC18F86K90-E/PT's nanoWatt XLP sleep currents to stretch battery life for months. The integrated ADC captures blood-glucose strip or photoplethysmography (PPG) analog front-ends while CTMU scans the wake-up touch button and the LCD driver shows the result on a reflective LCD glass. The 64KB Flash comfortably fits USB-CDC stacks or BLE firmware plus rolling 512-event logs in EEPROM. The automotive-grade temperature range simplifies IEC 60601-1 environmental qualification.
Recommended
Industrial HVAC Keypad and Thermostat
Building automation thermostats often ship with 7-day programmable schedules rendered on segment LCDs. The PIC18F86K90-E/PT powers the panel, drives the LCD glass directly, and uses CTMU to add glass-over-touch buttons that ignore water splashes. UART peripherals link to the wall-bus to a master controller, while the 64MHz core leaves room for an HVAC control algorithm with PID. The wide VDD tolerance (consult datasheet) lets the same design work on 24VAC transformer-fed or 12VDC supply rails.
Recommended
Electronic Shelf Label & IoT Sensor Node
Battery-powered retail electronic shelf labels (ESL) and indoor IoT sensors benefit from the PIC18F86K90-E/PT's nanoWatt XLP sleep current, which lets coin cells survive years between RF transmissions. The integrated LCD driver renders pricing or sensor readings on e-paper or segment LCD without extra controllers, while the USART/SPI ties to a sub-GHz or BLE companion module for wireless updates. 64KB Flash and 4KB RAM hold small RTOS layers plus application payloads, and the -E temperature grade matches warehouse and outdoor retail conditions.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F86K90-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F86K90-I/PT | PIC18F85K90-I/PT | PIC18F87K90T-I/PT | PIC18F85K90-E/PT | PIC18F67K90-I/PT |
|---|---|---|---|---|---|---|
| Package | 80-TQFP (PT) 12x12 mm | 80-TQFP (PT) 12x12 mm | 80-TQFP (PT) 12x12 mm | 80-TQFP (PT) 12x12 mm | 80-TQFP (PT) 12x12 mm | 80-TQFP (PT) 12x12 mm |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Temperature Grade | Automotive -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Automotive -40C to +125C | Industrial -40C to +85C |
| LCD Driver | Yes (484 pixels max) | Yes | Yes | Yes | Yes | Yes |
| CTMU Touch Channels | Up to 24 | Up to 24 | Up to 24 | Up to 24 | Up to 24 | Up to 24 |
Key Differentiators
- Integrated CTMU + LCD driver in a single 80-TQFP package (vs PIC18F87K22 + external LCD + touch controller)
- Doubled Flash over PIC18F85K90 siblings (vs PIC18F85K90-I/PT)
- Automotive-grade -E temperature qualification (vs PIC18F86K90-I/PT (industrial))
- nanoWatt XLP ultra-low sleep currents (vs PIC18F8722 (legacy PIC18F))
Design Notes
Estimated: with one ADC active, the K90 core draws on the order of single-digit mA at 64 MHz; activating LCD, timers or UART adds 1-3 mA each. nanoWatt XLP sleep currents are stated in the tens of nA on the datasheet electrical table. Decouple each VDD pin with 100 nF X7R placed as close as practical, and add a 10 uF bulk ceramic on the main supply rail to absorb inrush when waking from sleep.
The CTMU slope measurement is sensitive to leakage on the touch pin - keep the touch pad trace short and isolated from the LCD bias network. Route analog and digital grounds back to a single point near the AVDD/AVSS pins to avoid ground-bounce errors on the ADC. Place quartz crystals and load capacitors within 5 mm of OSC1/OSC2 with a guard ring tied to ground.
Estimated: confusing the -E (automotive) and -I (industrial) temperature grades is a frequent source of late-stage redesigns. The automotive -E grade is required for AEC-Q100 customer programs but typically commands a small price premium. Always validate that the in-circuit debugger pin assignments (PGEC/PGED) match the production package because PT and PT-VAO suffixes can vary in programming pinout.
Compliance Information
Per distributor listings the part is RoHS and REACH compliant; the -E suffix indicates AEC-Q100 qualification. Halogen-free status and conflict-minerals declarations should be confirmed with the manufacturer declaration.
