PIC18F67K90-E/MR - 64-pin LCD MCU, 128KB Flash, XLP | Microchip
MPN: PIC18F67K90-E/MR ✓ Hoạt độngPIC18F67K90-E/MR Tóm tắt
An 8-bit microcontroller (MCU) is a small programmable computer on a single IC that integrates a CPU, program memory (Flash), data memory (RAM), non-volatile EEPROM, and a rich set of peripherals such as timers, ADC, communication ports, and I/O. Within the broader taxonomy, the PIC18F belongs to Microchip's PIC18 RISC family -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The 'K' series emphasizes low-power operation via nanoWatt XLP, while the 'F87K90' family adds an integrated LCD segment driver and CTMU, eliminating the need for an external LCD controller and enabling cost-optimized human-machine interfaces.
Key features include 54 digital I/O pins, an integrated LCD driver supporting up to 384 segments, a 12-bit ADC with up to 24 channels, two comparators, three ECCP + two CCP modules, three USART, two SPI, two I2C, a 16-bit touch-friendly CTMU and a chargeable nanoWatt XLP core with multiple idle/sleep modes below 1 uA typical. The 64 MHz MIPS core delivers approximately 16 MIPS, sufficient for embedded UI loops, sensor fusion and protocol stacks without external coprocessors.
Architecturally, the device uses a 16-bit opcode Harvard architecture with a hardware multiplier, two addressable register banks and self-programmable Flash, allowing firmware updates in the field. The CTMU uses a constant-current source plus timer capture to perform charge-time measurement across touch electrodes, giving reliable projected-capacitive touch from a single MCU pin per channel. An integrated LCD charge pump drives segments directly from a single 1.8V-5.5V supply, simplifying battery-driven UI boards.
Typical applications include battery-powered medical glucose meters, e-meter/HMI panels, consumer remote controls, automotive instrument cluster sub-modules, industrial sensor hubs, and any segment-LCD UI with capacitive touch buttons where low standby current is essential. The combination of segment LCD + touch + XLP lets a single chip replace a legacy 3-chip solution (MCU + LCD driver + touch IC).
When designing, ensure the exposed pad on the MR package is soldered to a sufficient ground copper pour for thermal dissipation. The PIC18F67K90-E/MR suffix 'E' indicates the -40C to +125C automotive temperature grade; pair it with the matching MPLAB Xpress or MPLAB X IDE for code development. Programming/debug uses standard ICSP via PGC/PGD pins, so existing PIC18 kits can be reused without layout changes.
This page synthesizes distributor pricing, drop-in same-package alternatives and practical design notes not found in the standalone manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC18F67K90-E/MR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC18F67K90-E/MR (cùng hình factor và footprint) — khác nhau ở Package, LCD Driver, ADC, Core Architecture, Operating Temperature.
PIC18F67K90-I/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F67K90T-I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F65K90-E/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F65K90-I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F67K40-I/MR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F67K22-I/MR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F67K90-E/MR Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC18 RISC (Harvard, 16-bit opcode) |
| Family | PIC18F87K90 |
| Program Memory (Flash) | 128 KB |
| Data Memory (RAM) | 4 KB |
| EEPROM | 1 KB |
| Maximum CPU Speed | 64 MHz (16 MIPS) |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Nhiệt độ hoạt động | -40 C to +125 C (Automotive, 'E' suffix) |
| I/O Pins | 54 |
| ADC | 12-bit, up to 24 channels |
| LCD Driver | Integrated, up to 384 segments |
| CTMU (Touch) | Yes, 24-channel capacitive touch |
| Communication | 3x USART, 2x SPI, 2x I2C |
| Low-Power Mode | nanoWatt XLP, <1 uA typical sleep |
| Hộp | 64-pin VQFN (MR), 9x9 mm, exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F67K90-E/MR
| Chân 1 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Chân 2 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Chân 3 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / ADC VREF- |
| Chân 4 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| Chân 5 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Chân 6 | RA5/AN4 — PORTA bit 5 / analog input 4 |
| Chân 7 | RA6/OSC2 — PORTA bit 6 / oscillator output |
| Chân 8 | RA7/OSC1 — PORTA bit 7 / oscillator input |
| Chân 9 | RE0/RD — PORTE bit 0 / LCD driver control |
| Chân 10 | RE1/WR — PORTE bit 1 / LCD driver control |
| Chân 11 | RE2/CS — PORTE bit 2 / LCD driver control |
| Chân 12 | RE3 — PORTE bit 3 (input-only) |
| Chân 13 | LCDBIAS0 — LCD bias voltage node |
| Chân 14 | LCDBIAS1 — LCD bias voltage node |
| Chân 15 | LCDBIAS2 — LCD bias voltage node |
| Chân 16 | — LCD charge-pump output 1 |
Ứng dụng tiêu biểu
PIC18F67K90-E/MR phù hợp cho 6 Áp dụngs: Battery-Powered Glucose Meter, Automotive Instrument Cluster Sub-Module, Industrial HMI / Process Meter, Remote Control with Segment LCD, Smart Home Sensor Hub with Display, Medical Infusion Pump User Interface.
Battery-Powered Glucose Meter
The PIC18F67K90-E/MR fits battery-powered glucose meters because its 128 KB Flash hosts both the meter algorithm and the segment-LCD UI bitmap while the integrated LCD driver drives a 4-digit numeric display directly from a single CR2032 cell. The CTMU module supports up to 24 capacitive touch channels for the soft buttons used to navigate measurement history. nanoWatt XLP drops quiescent current below 1 uA in sleep, giving multi-year coin-cell life. Wide 1.8V-5.5V supply avoids boost converters, simplifying PCB and reducing BOM cost.
Được đề xuất
Automotive Instrument Cluster Sub-Module
The PIC18F67K90-E/MR with its 'E' automotive -40C to +125C grade handles secondary telltales and segment indicators in an automotive instrument cluster, where a host MCU delegates warning lights and odometer display. The integrated 384-segment LCD driver replaces a costly external LCD controller, while the 12-bit ADC samples fuel-level and temperature sensors without an external analog front-end. CTMU capacitive touch enables touch-sensitive trim rings on the cluster bezel, an emerging UX pattern. Same MR footprint eases PCB reuse between vehicle trims.
Được đề xuất
Industrial HMI / Process Meter
The PIC18F67K90-E/MR drives segment-LCD process meters used on factory floors to display flow, pressure and temperature setpoints. Its 24 CTMU touch channels replace mechanical pushbuttons behind a sealed glass overlay, eliminating gasket penetrations and improving IP65+ ingress protection. Three USARTs connect to a PLC, an external 4-20 mA loop transmitter and a debug port simultaneously. The automotive temperature grade tolerates the -40C to +85C industrial enclosure range with margin, giving long-term reliability in 24/7 factory operation.
Được đề xuất
Remote Control with Segment LCD
The PIC18F67K90-E/MR powers universal remote controls that show channel number, battery level and menu icons on a segment-LCD instead of an expensive TFT. Its sub-1 uA nanoWatt XLP sleep current extends AAA-battery life to multiple years of standby. The CTMU scans 20-30 mechanical-style touch keys behind the plastic shell without mechanical switches. Integrated LCD driver eliminates an external charge-pump chip, shrinking the remote to a single-sided 2-layer PCB. The wide 1.8V-5.5V supply tolerates drooping alkaline batteries.
Được đề xuất
Smart Home Sensor Hub with Display
The PIC18F67K90-E/MR anchors low-power smart-home sensor hubs that report temperature, humidity and occupancy on a wall-mounted segment-LCD. Its 12-bit ADC reads multiple analog sensors simultaneously, while CTMU touch replaces mechanical buttons on the wall plate. The XLP sleep current below 1 uA supports battery-powered window sensors that last a decade. Three USARTs bridge to a sub-GHz radio, an I2C sensor bus and a debug UART without external multiplexing. The 64-pin VQFN footprint keeps the hub compact.
Được đề xuất
Medical Infusion Pump User Interface
The PIC18F67K90-E/MR drives the segment-LCD and capacitive-touch UI of portable medical infusion pumps, displaying flow rate, volume infused and remaining time. The 128 KB Flash supports a full IEC-62304 software class B implementation with parameter logging. The CTMU provides sealed touch buttons that survive repeated medical-grade disinfection. The -40C to +125C automotive grade gives wide safety margin in the 0C-50C clinical environment. The integrated LCD driver removes a costly isolation barrier required when an external LCD controller sits on a high-voltage side.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F67K90-E/MR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC18F67K90-I/MR | PIC18F67K90T-I/MR | PIC18F65K90-E/MR | PIC18F65K90-I/MR | PIC18F67K40-I/MR | PIC18F67K22-I/MR |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | VQFN-64 (MR) 9x9 mm | VQFN-64 (MR) 9x9 mm - same | VQFN-64 (MR) 9x9 mm - same | VQFN-64 (MR) 9x9 mm - same | VQFN-64 (MR) 9x9 mm - same | VQFN-64 (MR) 9x9 mm - same | VQFN-64 (MR) 9x9 mm - same |
| Program Memory (Flash) | 128 KB | 128 KB | 128 KB | 32 KB (-75%) | 32 KB (-75%) | 128 KB | 128 KB |
| CPU Clock | 64 MHz | 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 | Automotive -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
| Integrated LCD Driver | Yes (up to 384 segments) | Yes | Yes | No (-key feature) | No | No | No |
| CTMU Capacitive Touch | Yes, 24 channels | Yes, 24 channels | Yes, 24 channels | Yes, 24 channels | Yes, 24 channels | No (K40 family removed CTMU) | Yes |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
Bảo phân biệt quan trọng
- Highest temperature grade in the family (vsPIC18F67K90-I/MR)
- 4x larger Flash than 65K90 siblings (vsPIC18F65K90-E/MR)
- Integrated segment LCD + CTMU touch in one IC (vsPIC18F67K40-I/MR)
Ghi chú thiết kế
The 64-pin VQFN (MR) 9x9 mm package relies on its exposed pad for thermal relief. Solder the e-pad (pin 64) to a ground copper pour of at least 1 square inch on the top layer plus thermal vias to inner planes; without this, junction temperature can climb past 100 C during sustained 64 MHz operation with full peripheral activity. For -40C to +125C automotive use, allocate at least 2 square inches of copper area and verify with a thermal probe in worst-case firmware loads.
Place the 0.1 uF VDD decoupling capacitor within 3 mm of every VDD/AVDD pin and a single bulk 10 uF tantalum or ceramic within 10 mm of the package. The LCD segment pins (SEG0-SEGx) carry high-impedance analog nodes; route them away from switching traces and surround the LCD glass connector area with a ground guard ring. CTMU touch channels need a 5-50 kohm series resistor on each electrode for proper charge-time measurement.
Do not assume the PIC18F67K90-E/MR and PIC18F65K90-E/MR are interchangeable on the same firmware image: Flash is 128 KB vs 32 KB, and linker scripts must be regenerated. Also remember that ICSP uses PGC/PGD on RB6/RB7 - never strap these pins as outputs in the application or programming will fail. When migrating from 'I' to 'E' grade, revalidate timing at 125 C because some analog specs drift with temperature.
Route the OSC1/OSC2 crystal traces short and symmetric to avoid stray capacitance, and place the load capacitors within 2-3 mm of the oscillator pins. For the CTMU touch matrix, use a star-ground topology with the touch electrodes' series resistors connected to a quiet analog ground island to prevent digital switching noise from coupling into charge-time measurements and producing false touch events.
Thông tin tuân thủ
Automotive 'E' temperature grade implies AEC-Q100 qualification per Microchip's PIC18F product line. RoHS and REACH compliance per Microchip product page. Halogen-free status not stated in provided data, so marked unknown.
