PIC18F67K90-I/PT - 8-Bit 64MHz 128KB Flash LCD MCU | Microchip
MPN: PIC18F67K90-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $11.85 | $11.85 |
| 10 | $10.66 | $106.60 |
| 100 | $9.46 | $946.00 |
| 500 | $8.45 | $4,225.00 |
| 1,000 | $7.55 | $7,550.00 |
PIC18F67K90-I/PT Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), working memory (RAM), peripherals, and I/O. The PIC18 family is Microchip's 8-bit high-performance architecture, positioned above the baseline PIC16 in instruction set richness and peripheral integration. The PIC18F67K90 belongs to the PIC18F87K90 family, which adds an on-chip LCD segment driver, the Charge Time Measurement Unit (CTMU) for capacitive touch sensing, and nanoWatt XLP sleep modes that reduce supply current into the microampere range. The hypernym chain for this part is: microcontroller -> 8-bit MCU -> PIC18 family -> embedded controller -> semiconductor IC.
Key features include up to 54 digital I/O pins, 24 channels of 10-bit ADC, an integrated LCD controller supporting up to 192 segments, an RTCC, multiple UART/SPI/I2C interfaces, and CTMU for capacitive touch. Program memory is 128 KB of self-programmable Flash, with 4 KB RAM and 1 KB EEPROM for non-volatile data storage.
The PIC18F67K90 architecture is based on a modified Harvard 8-bit RISC core with a 16-bit instruction word. nanoWatt XLP provides deep sleep, sleep, idle, and run modes with current consumption as low as the nanoampere range in deep sleep. The CTMU block converts capacitance to time using a constant current source, enabling button, slider, and wheel touch interfaces with the segment LCD.
Typical applications include battery-powered medical devices (glucometers, blood-pressure monitors), home-automation control panels with LCD displays, industrial sensor transmitters with capacitive touch, consumer appliances, instrumentation with multi-segment displays, and e-metering. The wide supply range (1.8 V to 5.5 V family-typical; this I/PT variant is specified 4.2 V to 5.5 V) and low-power modes suit portable and line-powered designs equally.
Designers should review the device's voltage variant (the 'I' suffix denotes the industrial -40C to +85C operating range and 4.2 V to 5.5 V supply). The 64-pin TQFP (10x10 mm) is the largest footprint of the family; migrating to the 64-pin QFN variant reduces board area. Use MPLAB X IDE with the XC8 compiler for firmware development.
This page synthesizes distributor pricing, drop-in alternatives drawn from the same PIC18F67K90 family and pin-compatible PIC18F66K90 relatives, and practical design notes not consolidated on a single manufacturer page.
Drop-in alternatives for PIC18F67K90-I/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 PIC18F67K90-I/PT (same form factor and footprint) — differing in Package, ADC, Core Architecture, Operating Temperature, LCD Driver.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F67K90-E/PT
✅ Drop-In✓ In Stock
$3.55 / Unit
View Datasheet →PIC18F66K90-I/PT
✅ Drop-In✓ In Stock
$4.15 / Unit
View Datasheet →PIC18F66K90-I/PTRSL
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →PIC18F65K90-I/MR
✅ Drop-In✓ In Stock
$3.02 / Unit
View Datasheet →PIC18F65K90T-I/MR
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC18F67K90-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 8-bit RISC (modified Harvard) |
| Program Memory (Flash) | 128 KB (64K x 16) |
| RAM | 4 KB |
| EEPROM | 1 KB |
| Maximum CPU Frequency | 64 MHz (16 MIPS) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| Operating Temperature Range | -40 C to +85 C (industrial, 'I') |
| Digital I/O Pins | 54 |
| ADC | 12 channels, 12-bit (family-typical); see note for 10-bit fallback |
| LCD Segments Supported | Up to 192 segments (family-typical) |
| Package | 64-pin TQFP, 10x10 mm, MS-026 |
| Mounting Type | Surface Mount |
| Low-Power Technology | nanoWatt XLP (deep sleep to run modes) |
| CTMU (Capacitive Touch) | Yes - up to 24 channels (family) |
| Communication Peripherals | UART, SPI, I2C (family) |
| RTCC | Yes (Real-Time Clock & Calendar) |
| RoHS Status | Compliant |
| Lifecycle Stage | ACTIVE |
PIC18F67K90-I/PT 64-pin tqfp, 10x10 mm, ms-026 Pin Configuration Guide
Pin configuration for PIC18F67K90-I/PT (64-pin tqfp, 10x10 mm, ms-026 package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC18F67K90-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC18F67K90-I/PT is suitable for 6 applications: Battery-Powered Medical Devices, Home-Automation Control Panels with LCD, Industrial Sensor Transmitters with Touch Interface, Smart E-Metering Endpoints, Consumer Appliance Control Boards, Portable Test and Measurement Instruments.
Battery-Powered Medical Devices
The PIC18F67K90-I/PT fits portable medical products such as glucometers, blood-pressure monitors, and pulse oximeters where battery life is critical and segment LCDs plus capacitive buttons provide the user interface. The integrated LCD controller drives up to 192 segments without external drivers, shrinking the BOM, while CTMU delivers up to 24 capacitive touch channels for clean front-panel buttons that survive repeated disinfection. nanoWatt XLP deep sleep drops supply current into the nanoampere range, enabling multi-year coin-cell operation on a single CR2032. The 64-pin TQFP provides 54 I/O for sensor multiplexing, and the 4 KB RAM supports local data buffering before BLE/UART upload to a phone.
Recommended
Home-Automation Control Panels with LCD
The PIC18F67K90-I/PT serves as the brain of wall-mounted home-automation panels combining a multi-segment LCD, capacitive touch keys, and a wireless or wired uplink. The on-chip LCD driver eliminates an external HT1621 or similar driver, while CTMU handles backlit capacitive buttons that can be operated with gloves. The 128 KB Flash holds the application state machine plus an OTA bootloader, and the 4 KB RAM supports modest buffering of sensor events between transmissions. The 64-pin TQFP exposes 54 I/O for driving relays, reading switches, and lighting a backlight driver. The 64 MHz / 16 MIPS core executes Modbus, Zigbee-host, or LoRa host stacks without external logic.
Recommended
Industrial Sensor Transmitters with Touch Interface
Industrial 4-20 mA loop-powered and field-bus sensor heads benefit from the PIC18F67K90-I/PT's combination of LCD segment driver, capacitive touch, and nanoWatt XLP efficiency. The 12-bit ADC and CTMU allow direct connection of analog sensors plus touch-sense calibration buttons on the enclosure lid, removing the mechanical keypad. The 4 KB RAM plus 1 KB EEPROM store calibration constants and last-measured values across power cycles. The 64 MHz core handles HART or IO-Link protocol framing without external ASICs. The 64-pin TQFP (10x10 mm) supports the industry's standard SO-DIMM-style footprint familiar to industrial designers.
Recommended
Smart E-Metering Endpoints
Electronic electricity, water, and gas meters leverage the PIC18F67K90-I/PT for its integrated LCD segment driver and deep-sleep current. The CTMU block supports capacitive tamper-detection inputs, while the RTCC provides a calendar for time-of-use billing. nanoWatt XLP deep sleep combined with periodic RTCC wake-ups enables multi-year battery life, removing the need for grid power on remote meter endpoints. The 128 KB Flash holds metering firmware plus DLMS/COSEM or wireless M-Bus protocol stacks. The 64-pin TQFP gives enough I/O for pulse inputs, optical tamper sensors, and a wireless module interface.
Recommended
Consumer Appliance Control Boards
Washing machines, dishwashers, ovens, and induction cooktops integrate the PIC18F67K90-I/PT to drive the segment LCD display, read capacitive touch keys, and run the motor/inverter control state machine. The 12-bit ADC digitizes temperature sensors and motor current, while the multiple UART/SPI/I2C peripherals interface to the inverter driver, BLE module, and door-lock actuator. The 64-pin TQFP is large enough for the appliance-grade pin count typical of mid-range washing machines. nanoWatt XLP standby keeps idle power below 0.5 W to meet energy-efficiency regulations.
Recommended
Portable Test and Measurement Instruments
Handheld multimeters, insulation testers, and process calibrators use the PIC18F67K90-I/PT for its LCD segment driver, CTMU touch keys, and robust industrial peripherals. The 12-bit ADC plus external MUX allows direct measurement of voltage, current, resistance, and temperature from a single MCU. The 128 KB Flash stores calibration tables for multi-range accuracy, and 1 KB EEPROM retains user setups through battery swaps. The 64 MHz core executes RMS computation and auto-ranging algorithms without external DSP. The 64-pin TQFP survives reflow profiles common in industrial-grade PCB assembly.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F67K90-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F67K90-E/PT | PIC18F66K90-I/PT | PIC18F66K90-I/PTRSL | PIC18F65K90-I/MR | PIC18F65K90T-I/MR |
|---|---|---|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB | 64 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Maximum Frequency | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 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 | 4.2 V to 5.5 V | 4.2 V to 5.5 V |
| Temperature Grade | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Approximate 1-Piece Price | $11.85 | $11.95 | $10.90 | $10.90 | $9.40 | $9.40 |
Key Differentiators
- On-chip LCD segment driver supporting up to 192 segments (vs PIC18F66K90-I/PT)
- Industrial -40 C to +85 C temperature rating at lower price than extended grade (vs PIC18F67K90-E/PT)
- nanoWatt XLP deep sleep current in the nanoampere range (vs PIC18F65K90-I/MR)
Design Notes
Estimated: at VDD=5 V and CPU=64 MHz active, the PIC18F67K90 draws approximately 10-15 mA; dropping to deep-sleep with RTCC active reduces current to a few microamperes. For battery-powered designs, gate oscillator startup, peripheral enable, and RTCC tick rate to minimize average consumption. Always include a 100 nF decoupling capacitor within 5 mm of each VDD/AVDD pin and a 10 uF bulk capacitor on the main rail per the PIC18F87K90 family datasheet reference circuit.
The 'I' suffix denotes industrial temperature (-40 C to +85 C) and 4.2 V to 5.5 V supply; do not substitute the 'I' grade part into designs that exceed 85 C ambient or operate below 4.2 V - use the 'E' grade for higher temperature or the 'LF' grade for lower voltage. Configuration bits must be set to enable the ADC, CTMU, and LCD driver before firmware uses them; forgetting this is a common first-board bring-up failure.
The 64-pin TQFP (10x10 mm, 0.5 mm pitch) requires precise PCB land pattern per JEDEC MS-026. Keep analog traces (ADC inputs, VREF+) short and away from switching digital lines to preserve ADC accuracy. The LCD segment pins benefit from guard traces to the COM lines. Place the 32.768 kHz crystal for RTCC within 5 mm of the SOSCO/SOSCI pins with a ground guard ring to minimize stray capacitance that would otherwise shift the calibration.
Compliance Information
RoHS and lead-free compliant per Microchip product page; not AEC-Q100 qualified - use automotive-grade PIC parts where required. REACH compliance confirmed per Microchip product declaration; halogen-free status not explicitly stated - request factory certificate for medical applications.
