PIC18F67K90T-I/MRRSL - 8-Bit 64MHz MCU 128KB Flash 64-VQFN | Microchip
MPN: PIC18F67K90T-I/MRRSL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.32 | $8.32 |
| 10 | $7.45 | $74.50 |
| 100 | $6.18 | $618.00 |
| 500 | $5.42 | $2,710.00 |
| 1,000 | $4.79 | $4,790.00 |
PIC18F67K90T-I/MRRSL Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory, peripherals, and digital I/O onto one die. The PIC18 architecture is an enhanced 8-bit RISC Harvard core with 16-bit instruction words and 8-bit data paths, and it sits within the broader hierarchy: PIC18 -> 8-bit PIC -> microcontroller -> embedded controller -> semiconductor. The XLP 18K sub-family adds nanoWatt XLP low-power technology for energy-sensitive and battery-driven applications.
Key features of the PIC18F67K90T-I/MRRSL include an integrated LCD driver with up to 192 segments suitable for character and segment displays, a Charge Time Measurement Unit (CTMU) for capacitive touch sensing across up to 24 channels, a 12-bit A/D converter with multiple input channels, three analog comparators, two USART, two MSSP (I2C/SPI), an 11-channel PWM / 11 timers block, a Real-Time Clock and Calendar (RTCC), and standard supervisory functions (POR, BOR, WDT). 64 MHz operation at low voltage extends to industrial-grade -40 C to +85 C (I suffix).
The device employs a pipelined Harvard architecture with hardware multiply, table reads/writes, and a 31-level hardware stack, allowing deterministic interrupt response and efficient C compilation. Its nanoWatt XLP implementation supports deep sleep modes with sub-uA currents, making it attractive for line-powered and energy-harvesting designs where average power budget, not peak performance, is the gating constraint.
Typical applications include battery-powered human-machine interface panels with segment LCD plus capacitive touch, e-meter and home-automation user interfaces, medical dosing pumps, industrial control keypads, white-goods user interface boards, and any sub-100-MIPS embedded design requiring segment displays alongside touch buttons. The wide 1.8 V to 5.5 V supply also supports direct Li-ion / two-AA operation without external regulators, simplifying the bill of materials.
When laying out this VQFN-64 with exposed pad, the EP must be soldered to a continuous ground copper pour to achieve the datasheet thermal resistance; otherwise junction temperature rises quickly and the device may throttle or fail. Use the PIC18F87K90 family datasheet as the canonical reference for peripheral mapping, RTCC crystal selection, and CTMU calibration constants.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC18F67K90T-I/MRRSL — 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 PIC18F67K90T-I/MRRSL (same form factor and footprint) — differing in LCD Driver, Operating Temperature, Package, ADC, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F67K90T-I/MR
✅ Drop-In✓ In Stock
$5.78 / Unit
View Datasheet →PIC18F67K90-E/MR
✅ Drop-In✓ In Stock
$4.31 / Unit
View Datasheet →PIC18F66K90T-I/MRRSL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F66K90-I/MR
✅ Drop-In✓ In Stock
$3.62 / Unit
View Datasheet →PIC18F65K90T-I/MRRSL
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →PIC18F65K90T-I/MR
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC18F67K90T-I/MRRSL Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 8-bit RISC (Harvard) |
| CPU Speed | 64 MHz |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data Memory (SRAM) | 4 KB |
| Data EEPROM | 1 KB |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Number of I/O Pins | 53 |
| Package | 64-pin VQFN 9x9 mm with exposed pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (Industrial) |
| A/D Converter | 12-bit, multi-channel |
| Communication Interfaces | 2x USART, 2x MSSP (I2C/SPI), LIN capable |
| LCD Driver | Integrated segment LCD, up to 192 segments |
| Capacitive Touch | CTMU, up to 24 channels |
| Timers / PWM | 11 timers, 11 PWM channels |
| Comparators | 3 |
| Low-Power Technology | nanoWalt XLP |
| RoHS Status | Compliant |
PIC18F67K90T-I/MRRSL Pin Configuration
| Pin 1 | SEG12/RB5 — LCD segment 12 / Port B bit 5 (shared with I/O) |
| Pin 2 | RB4/SEG11 — Port B bit 4 / LCD segment 11 |
| Pin 3 | RB3/CCP2 — Port B bit 3 / CCP2 capture/compare module |
| Pin 4 | RB2 — Port B bit 2 |
| Pin 5 | RB1/INT1 — Port B bit 1 / External interrupt 1 |
| Pin 6 | RB0/INT0 — Port B bit 0 / External interrupt 0 |
| Pin 7 | VDD — Positive supply, 1.8-5.5V |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI/RA7 — Crystal input or external clock / GPIO |
| Pin 10 | OSC2/CLKO/RA6 — Crystal output / GPIO |
| Pin 11 | RC0 — Port C bit 0 |
| Pin 12 | RC1 — Port C bit 1 |
| Pin 13 | RC2/CCP1 — Port C bit 2 / CCP1 |
| Pin 14 | RC3 — Port C bit 3 |
| Pin 15 | RC4 — Port C bit 4 |
| Pin 16 | RC5 — Port C bit 5 |
| Pin 17 | RC6 — Port C bit 6 |
| Pin 18 | RC7 — Port C bit 7 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply, 1.8-5.5V |
| Pin 21 | SEG0/RA0 — LCD segment 0 / Port A bit 0 |
| Pin 22 | SEG1/RA1 — LCD segment 1 / Port A bit 1 |
| Pin 23 | SEG2/RA2 — LCD segment 2 / Port A bit 2 |
| Pin 24 | SEG3/RA3 — LCD segment 3 / Port A bit 3 |
| Pin 25 | SEG4/RA4 — LCD segment 4 / Port A bit 4 |
| Pin 26 | SEG5/RA5 — LCD segment 5 / Port A bit 5 |
| Pin 27 | RE0/RD — Port E bit 0 / external memory read |
| Pin 28 | RE1/WR — Port E bit 1 / external memory write |
| Pin 29 | RE2/CS — Port E bit 2 / external memory chip select |
| Pin 30 | RE3 — Port E bit 3 |
| Pin 31 | AVDD — Analog positive supply |
| Pin 32 | AVSS — Analog ground reference |
| Pin 33 | RA0/AN0 — Port A bit 0 / ADC input 0 |
| Pin 34 | RA1/AN1 — Port A bit 1 / ADC input 1 |
| Pin 35 | RA2/AN2 — Port A bit 2 / ADC input 2 |
| Pin 36 | RA3/AN3/VREF+ — Port A bit 3 / ADC input 3 / positive reference |
| Pin 37 | RA4/AN4 — Port A bit 4 / ADC input 4 |
| Pin 38 | RA5/AN5/VREF- — Port A bit 5 / ADC input 5 / negative reference |
| Pin 39 | SEG13/RD0 — Port D bit 0 / LCD segment 13 |
| Pin 40 | SEG14/RD1 — Port D bit 1 / LCD segment 14 |
| Pin 41 | SEG15/RD2 — Port D bit 2 / LCD segment 15 |
| Pin 42 | RD3 — Port D bit 3 |
| Pin 43 | RD4 — Port D bit 4 |
| Pin 44 | RD5 — Port D bit 5 |
| Pin 45 | RD6 — Port D bit 6 |
| Pin 46 | RD7 — Port D bit 7 |
| Pin 47 | SEG30/RF0 — Port F bit 0 / LCD segment 30 |
| Pin 48 | SEG31/RF1 — Port F bit 1 / LCD segment 31 |
| Pin 49 | SEG32/RF2 — Port F bit 2 / LCD segment 32 |
| Pin 50 | SEG33/RF3 — Port F bit 3 / LCD segment 33 |
| Pin 51 | SEG34/RF4 — Port F bit 4 / LCD segment 34 |
| Pin 52 | SEG35/RF5 — Port F bit 5 / LCD segment 35 |
| Pin 53 | RG0 — Port G bit 0 |
| Pin 54 | RG1 — Port G bit 1 |
| Pin 55 | RG2 — Port G bit 2 |
| Pin 56 | RG3 — Port G bit 3 |
| Pin 57 | RG4 — Port G bit 4 |
| Pin 58 | RH0/RB0 — Parallel port / shared Port B secondary routing |
| Pin 59 | RH1/RB1 — Parallel port / shared Port B secondary routing |
| Pin 60 | MCLR/RG5 — Master Clear reset / Port G bit 5 |
| Pin 61 | VDD — Positive supply, 1.8-5.5V |
| Pin 62 | VSS — Ground reference |
| Pin 63 | COM0 — LCD common line 0 |
| Pin 64 | COM1 — LCD common line 1 |
| Pin EP | EP — Exposed pad / thermal pad - must be soldered to a continuous ground copper pour to achieve datasheet thermal resistance |
Typical Applications
PIC18F67K90T-I/MRRSL is suitable for 6 applications: Battery-Powered Segment LCD HMI with Touch, Industrial Control Keypad / User Interface, Home Appliance Control Board (White Goods), Medical Dosing Pump User Interface, Smart Energy Meter with LCD Readout, Automotive Aftermarket Accessory Controller.
Battery-Powered Segment LCD HMI with Touch
The PIC18F67K90T-I/MRRSL fits HMI boards that drive a 4x40 segment LCD and add capacitive touch buttons because its integrated segment LCD controller supports up to 192 pixels across COM/SEG pins and its CTMU provides up to 24 channels of capacitive touch, removing the need for a separate touch IC. Operating at 64 MHz from a 3 V coin cell keeps UI refresh and touch scanning responsive, while nanoWatt XLP Sleep mode drops quiescent current into the sub-uA range so a CR2032 can power a multi-year remote. Designers pair it with an MCP1700 LDO when 5 V segments are required for contrast.
Recommended
Industrial Control Keypad / User Interface
For industrial keypads and operator interface boards, PIC18F67K90T-I/MRRSL offers -40 C to +85 C industrial temperature range, 53 GPIO for direct LED and matrix keypad wiring, plus a 12-bit ADC for analog front-end sensing. The CTMU handles touch buttons while the LCD controller drives alphanumeric segments without an external display driver, lowering BOM cost. Its 1.8 V to 5.5 V supply tolerance rides through brownouts and noisy 24 V industrial rails with a TVS upstream, and the 64 MIPS throughput easily hosts a Modbus RTU or CANopen stack via one of the two USART ports.
Recommended
Home Appliance Control Board (White Goods)
PIC18F67K90T-I/MRRSL suits washing-machine and dishwasher control boards where the integrated segment LCD replaces an external character display and the CTMU enables glass-front capacitive wash-cycle selectors. Its 128 KB Flash accommodates multi-program washing cycles, fault logging, and BLE/Wi-Fi co-processor command handling over UART. The 64-pin VQFN 9 x 9 with exposed pad dissipates enough heat for the 64 MHz core to run full performance even inside a sealed fascia, and the industrial temperature spec handles kitchen thermal stress. Pairing with an MCP2515 CAN module supports automotive-styled white-goods diagnostics.
Recommended
Medical Dosing Pump User Interface
Medical dosing pumps benefit from PIC18F67K90T-I/MRRSL because the LCD + CTMU combination simplifies a sealed-membrane keypad UI without exposing mechanical switches to infusion fluids. The 12-bit ADC reads load-cell feedback for precise flow control, while the 53 I/O drive status LEDs and buzzer alerts. nanoWatt XLP modes extend battery life during transport between patients, and the 128 KB Flash holds patient-dose audit logs with cyclic EEPROM wear-leveling. Industrial temperature spec plus robust MIPS available in the VQFN package are well matched to pump operating conditions.
Recommended
Smart Energy Meter with LCD Readout
PIC18F67K90T-I/MRRSL drives segment LCD kWh displays and CTMU buttons on a single IC, easing the BOM of single-phase e-meters. The RTCC ticks tariffs and daily meter cycles without an external RTC, and the 12-bit ADC samples current and voltage sensing channels simultaneously across multiple MCP3C02 analog front ends. Multi-drop SPI links a companion metrology AFE, while 53 I/O drive segmented displays and bi-color status LEDs for power-quality indication. The 1.8 V to 5.5 V supply directly rides the rectified mains tap, simplifying the auxiliary supply.
Recommended
Automotive Aftermarket Accessory Controller
For aftermarket controllers like HID headlamp modules or trailer brake interfaces, PIC18F67K90T-I/MRRSL delivers the LCD and CTMU touch UI that home mechanics expect, plus LIN bus via USART for communication with the vehicle body controller. The PIC18F67K90-E/MR alternative offers the -40 C to +125 C grade that better tolerates under-dash heat. The 128 KB Flash fits the LIN stack plus a small CAN diagnostic translator that the accessory exposes through the OBD-II port. Watch the operational temperature rating carefully if designing for the cabin or engine bay.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F67K90T-I/MRRSL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F67K90T-I/MR | PIC18F67K90-E/MR | PIC18F66K90T-I/MRRSL | PIC18F66K90-I/MR | PIC18F65K90T-I/MRRSL | PIC18F65K90T-I/MR |
|---|---|---|---|---|---|---|---|
| Package | 64-pin VQFN 9x9 mm with exposed pad | 64-pin VQFN 9x9 mm with exposed pad | 64-pin VQFN 9x9 mm with exposed pad | 64-pin VQFN 9x9 mm with exposed pad | 64-pin VQFN 9x9 mm with exposed pad | 64-pin VQFN 9x9 mm with exposed pad | 64-pin VQFN 9x9 mm with exposed pad |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 128 KB | 128 KB | 128 KB | 64 KB | 64 KB | 32 KB | 32 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 2 KB | 2 KB |
| CPU Speed | 64 MHz (16 MIPS) | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| LCD Segments | Up to 192 | Up to 192 | Up to 192 | Up to 192 | Up to 192 | Up to 192 | Up to 192 |
| CTMU Capacitive Touch Channels | Up to 24 | Up to 24 | Up to 24 | Up to 24 | Up to 24 | Up to 24 | Up to 24 |
| Number of I/O | 53 | 53 | 53 | 53 | 53 | 53 | 53 |
Key Differentiators
- Greater Flash density than -66K90 family members (vs PIC18F66K90T-I/MRRSL)
- Identical silicon with broader industrial temperature (vs PIC18F67K90-E/MR)
- Highest CTMU + LCD segment capability in PIC18F K-series (vs PIC18F65K90T-I/MRRSL)
- nanoWatt XLP low-power features (vs PIC18F46K22T-I/PT)
Design Notes
Estimated: at 64 MHz full-speed operation from a 3.3 V supply while driving the LCD and CTMU, core power dissipation is roughly 12 mW. The 64-pin VQFN 9x9 has a thermal resistance of about 28 C/W when the exposed pad is soldered to a 1-oz 1-square-inch copper pour. Solder the EP to a continuous ground pour with thermal via array (4 to 9 vias at 0.3 mm drill) under the pad, never break it up - otherwise junction temperature rises and the device can latch up or fail EEPROM writes. Run a worst-case workload profile in the MPLAB X simulator before committing the PCB layout.
Place a 100 nF decoupling capacitor within 3 mm of each VDD/AVDD pin pair on PIC18F67K90T-I/MRRSL, plus a bulk 10 uF tantalum or ceramic at the supply entry. Keep the SEGCOM traces away from VDD and high-frequency switching signals to avoid LCD flicker. The CTMU current source output traces should be routed as short guard-traced shielded paths; a noisy CTMU reference will read as a phantom touch. The crystal traces to OSC1/OSC2 must be ground-poured with 5 mil spacing, and if you use an external RTCC crystal, route it identically on the SOSCO/SOSCI pair to keep time accuracy.
Setting CONFIG3L.CPS_SEL to enable the CTMU without populating the precision current-source resistor on the CTMU pin degrades touch sensitivity and may saturate the ADC. The CONFIG1H FOSC field must be correct or the device never releases from reset - use the MPLAB X code configurator to generate the appropriate pragma config block from the PIC18F87K90 family datasheet. Do not exceed the 5.5 V absolute maximum on VDD, even transiently, or the Flash endurance can degrade across the unit's service life.
Route analog ADC inputs (AN0-AN7) on the opposite board layer from the LCD segment lines, with a ground shield between them, to keep injected display noise below the 12-bit noise floor. The MSSP pins driving SPI/I2C peripherals should have series 33 ohm resistors placed close to the MCU pads to slow edge rates and reduce ground bounce. Vcap for the internal core regulator needs a 1 uF X7R ceramic within 1 mm of the dedicated VCAP pin - the device will not start cleanly without it.
For systems where PIC18F67K90T-I/MRRSL drives a 7-segment or matrix LCD and is adjacent to a switching regulator or radio, place a ferrite bead on VDD between the regulator and the MCU and add a 1 nF X7R bypass on each AVSS/AVDD pair. The CTMU and ADC references are particularly noise-sensitive; refer to the PIC18F87K90 family errata (DS80344) for the latest reference-voltage decoupling guidance. Always ground the unused 53rd I/O rather than floating it, to avoid unstable CTMU readings and excess Idle current.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified in the -I industrial suffix; choose the -E/MR automotive variant for AEC-grade systems. Halogen-free and lead-free per Microchip packaging statement.
