PIC18F65K90T-I/MRRSL - 32KB Flash 8-bit MCU with LCD Driver
MPN: PIC18F65K90T-I/MRRSL ✓ فعالPIC18F65K90T-I/MRRSL نمای کلی
An 8-bit microcontroller is a single-chip computer that processes data in 8-bit words and integrates CPU, RAM, non-volatile program memory, and peripherals on one die. PIC18F-series MCUs sit within the broader Microcontroller -> Microcontroller IC -> Integrated Circuit taxonomy. Compared to 16-bit or 32-bit alternatives, 8-bit parts trade raw throughput for deterministic interrupt latency, lower cost, and ultra-low sleep current suitable for battery-powered designs.
Key features include 53 digital I/O pins, a Charge Time Measurement Unit (CTMU) supporting up to 24 channels of capacitive touch sensing, an LCD driver with up to 192 segments, multiple serial interfaces (UART, SPI, I2C), and 12-bit ADC. nanoWatt XLP technology provides deep-sleep currents below 100 nA, enabling years of battery life on coin cells. The 64-pin VQFN package exposes a thermal pad for improved heat spreading.
Typical applications include battery-powered consumer electronics with segmented LCD displays, capacitive touch human-machine interfaces, medical glucose meters, e-bike and fitness instruments, and metering pumps. The combination of LCD driver and capacitive touch eliminates the need for separate display and touch controller ICs, reducing BOM cost and PCB area in space-constrained designs.
Industrial temperature grade parts operate from -40C to +85C ambient and require a 1.8V to 3.6V supply rail. Microchip's MPLAB X IDE and XC8 compiler provide a complete development toolchain. The device ships in Tape & Reel packaging for high-volume SMT assembly.
This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
جایگزین‌های drop-in برای PIC18F65K90T-I/MRRSL — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC18F65K90T-I/MRRSL (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Operating Temperature, ADC, Program Memory (Flash), LCD Driver.
PIC18F65K90T-I/MR
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18F65K90-I/MR
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18F65K90-E/MR
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18F65K80T-I/PT
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18F65K40-I/PT
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18F65K90T-I/MRRSL حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core | PIC18 8-bit |
| Program Memory Size | 32KB (16K x 16) FLASH |
| RAM Size | 2KB |
| EEPROM Size | 1KB |
| حداکثر فرکانس کلاک | 64 MHz |
| Number of I/O | 53 |
| بسته‌بندی / کیس | 64-VFQFN Exposed Pad (9x9 mm) |
| Oscillator Type | Internal |
| ولتاژ تغذیه | 1.8V to 3.6V |
| دمای کاری | -40C to +85C |
| نوع نصب | Surface Mount |
| Packaging | Tape & Reel |
| LCD Driver | Integrated, up to 192 segments |
| Capacitive Touch Channels (CTMU) | Up to 24 |
| وضعیت RoHS | Compliant |
پیکربندی پین PIC18F65K90T-I/MRRSL
| پین 1 | RB5/KBI3/SEG13/AN13/C1IND — Port B bit 5 / Keyboard interrupt / LCD segment 13 / ADC analog input 13 |
| پین 2 | RB4/KBI2/SEG12/AN11/C1INC — Port B bit 4 / Keyboard interrupt / LCD segment 12 / ADC analog input 11 |
| پین 3 | RB3/KBI1/SEG11/AN9/C1INA — Port B bit 3 / Keyboard interrupt / LCD segment 11 / ADC analog input 9 |
| پین 4 | RB2/KBI0/SEG10/AN8 — Port B bit 2 / Keyboard interrupt / LCD segment 10 / ADC analog input 8 |
| پین 5 | RB1/SEG9/AN10/C1INB — Port B bit 1 / LCD segment 9 / ADC analog input 10 |
| پین 6 | RB0/SEG8/AN12 — Port B bit 0 / LCD segment 8 / ADC analog input 12 |
| پین 7 | VDD — Positive supply voltage (1.8V to 3.6V) |
| پین 8 | VSS — Ground reference |
| پین 9 | RA7/OSC1/CLKI — Port A bit 7 / Oscillator input / External clock input |
| پین 10 | RA6/OSC2/CLKO — Port A bit 6 / Oscillator output / Clock output |
| پین 11 | RC0/SOSCO — Port C bit 0 / Secondary oscillator output |
| پین 12 | RC1/SOSCI — Port C bit 1 / Secondary oscillator input |
| پین 13 | RC2/CCP1 — Port C bit 2 / Capture/Compare/PWM 1 |
| پین 14 | RC3/SCL — Port C bit 3 / I2C clock |
| پین 15 | RC4/SDA — Port C bit 4 / I2C data |
| پین 16 | RC5/SDO — Port C bit 5 / SPI data out |
| پین 17 | RC6/TX/CK — Port C bit 6 / UART TX / clock |
| پین 18 | RC7/RX/DT — Port C bit 7 / UART RX / data |
| پین 19 | RD0/SEG0 — Port D bit 0 / LCD segment 0 |
| پین 20 | RD1/SEG1 — Port D bit 1 / LCD segment 1 |
| پین 21 | RD2/SEG2 — Port D bit 2 / LCD segment 2 |
| پین 22 | RD3/SEG3 — Port D bit 3 / LCD segment 3 |
| پین 23 | RD4/SEG4 — Port D bit 4 / LCD segment 4 |
| پین 24 | RD5/SEG5/CCP2 — Port D bit 5 / LCD segment 5 / Capture/Compare/PWM 2 |
| پین 25 | RD6/SEG6 — Port D bit 6 / LCD segment 6 |
| پین 26 | RD7/SEG7 — Port D bit 7 / LCD segment 7 |
| پین 27 | VSS — Ground reference |
| پین 28 | VDD — Positive supply voltage |
| پین 29 | RE0/AN5/SEG32 — Port E bit 0 / ADC analog input 5 / LCD segment 32 |
| پین 30 | RE1/AN6/SEG33 — Port E bit 1 / ADC analog input 6 / LCD segment 33 |
| پین 31 | RE2/AN7/SEG34 — Port E bit 2 / ADC analog input 7 / LCD segment 34 |
| پین 32 | RE3/SEG35 — Port E bit 3 / LCD segment 35 |
| پین 33 | RA0/AN0/ULPWU — Port A bit 0 / ADC analog input 0 / Ultra Low Power Wake-up |
| پین 34 | RA1/AN1 — Port A bit 1 / ADC analog input 1 |
| پین 35 | RA2/AN2 — Port A bit 2 / ADC analog input 2 |
| پین 36 | RA3/AN3/VREF+ — Port A bit 3 / ADC analog input 3 / Positive voltage reference |
| پین 37 | RA4/AN4 — Port A bit 4 / ADC analog input 4 |
| پین 38 | RA5/AN5 — Port A bit 5 / ADC analog input 5 |
| پین 39 | VSS — Ground reference |
| پین 40 | VDD — Positive supply voltage |
| پین 41 | RF0/SEG36 — Port F bit 0 / LCD segment 36 |
| پین 42 | RF1/SEG37 — Port F bit 1 / LCD segment 37 |
| پین 43 | RF2/SEG38 — Port F bit 2 / LCD segment 38 |
| پین 44 | RF3/SEG39 — Port F bit 3 / LCD segment 39 |
| پین 45 | RF4/SEG40 — Port F bit 4 / LCD segment 40 |
| پین 46 | RF5/SEG41 — Port F bit 5 / LCD segment 41 |
| پین 47 | RF6/SEG42 — Port F bit 6 / LCD segment 42 |
| پین 48 | RF7/SEG43 — Port F bit 7 / LCD segment 43 |
| پین 49 | RG0/SEG44 — Port G bit 0 / LCD segment 44 |
| پین 50 | RG1/SEG45 — Port G bit 1 / LCD segment 45 |
| پین 51 | RG2/SEG46 — Port G bit 2 / LCD segment 46 |
| پین 52 | RG3/SEG47 — Port G bit 3 / LCD segment 47 |
| پین 53 | RG4/SEG48 — Port G bit 4 / LCD segment 48 |
| پین 54 | MCLR — Master Clear reset input (active low) |
| پین 55 | RH0/SEG58 — Port H bit 0 / LCD segment 58 |
| پین 56 | RH1/SEG59 — Port H bit 1 / LCD segment 59 |
| پین 57 | RH2/SEG60 — Port H bit 2 / LCD segment 60 |
| پین 58 | RH3/SEG61 — Port H bit 3 / LCD segment 61 |
| پین 59 | RH4/SEG62 — Port H bit 4 / LCD segment 62 |
| پین 60 | RH5/SEG63 — Port H bit 5 / LCD segment 63 |
| پین 61 | RH6/SEG64 — Port H bit 6 / LCD segment 64 |
| پین 62 | RH7/SEG65 — Port H bit 7 / LCD segment 65 |
| پین 63 | VSS — Ground reference |
| پین 64 | VDD — Positive supply voltage |
کاربردهای معمول
PIC18F65K90T-I/MRRSL مناسب است برای 6 کاربردs: Battery-Powered Consumer Electronics with LCD, Capacitive Touch Human-Machine Interfaces, Medical Glucose and Health Meters, Industrial Metering and Pump Controllers, Automotive Accessory and Aftermarket Devices, Smart Home Sensor Hubs with Local Display.
Battery-Powered Consumer Electronics with LCD
The PIC18F65K90T-I/MRRSL is purpose-built for battery-powered consumer devices with segmented LCD displays such as e-bike computers, fitness trackers, and portable media players. Its integrated LCD driver supports up to 192 segments, eliminating the need for an external display controller IC and reducing BOM cost. The nanoWatt XLP technology delivers deep-sleep currents below 100 nA per Microchip datasheet, enabling multi-year battery life on coin cells. Operating from 1.8V to 3.6V, the device is compatible with single-cell Li-ion and two-cell AA battery rails commonly used in portable consumer products. The 32KB Flash and 2KB SRAM provide ample code space for graphics rendering and user interface logic in cost-sensitive consumer designs.
پیشنهادی
Capacitive Touch Human-Machine Interfaces
The PIC18F65K90T-I/MRRSL integrates a Charge Time Measurement Unit (CTMU) supporting up to 24 capacitive touch channels, enabling buttons, sliders, and proximity sensors without dedicated touch controller ICs. This eliminates external touch hardware and reduces PCB area in appliance control panels, smart thermostats, and industrial HMI terminals. The CTMU measures capacitance changes via charge-time digitization, providing reliable touch detection even through glass overlays up to several millimeters thick. Combined with the LCD driver, the MCU enables full touch-and-display functionality in a single chip, simplifying firmware development with Microchip's MPLAB Code Configurator and reducing time-to-market for touch interface designs.
پیشنهادی
Medical Glucose and Health Meters
The PIC18F65K90T-I/MRRSL fits medical handheld meters such as glucose monitors, pulse oximeters, and blood pressure cuffs where low power consumption, integrated LCD, and reliable touch input are critical. The 12-bit ADC provides accurate analog measurement of electrochemical sensor outputs, while the LCD driver directly interfaces with segmented display glass for clear numeric readouts. nanoWatt XLP technology extends battery life across thousands of measurements per charge, meeting portable medical device usability requirements. The industrial -40C to +85C temperature range supports operation across home, clinical, and field environments. Microchip's validation documentation aids IEC 60730 compliance for Class B medical device firmware per the PIC18F87K90 family datasheet.
پیشنهادی
Industrial Metering and Pump Controllers
The PIC18F65K90T-I/MRRSL supports industrial metering pumps, flow controllers, and process instruments where LCD-based local display and capacitive touch interface improve operator usability. The 53 digital I/O pins allow direct connection to sensor inputs, valve drivers, and communication interfaces such as UART, SPI, and I2C for SCADA or Modbus integration. The 64 MHz clock speed and 16 MIPS throughput provide real-time response for closed-loop control algorithms. Industrial temperature rating to +85C ambient supports deployment in control cabinets and field enclosures. The 64-pin VQFN package with exposed thermal pad enables reliable operation at moderate power levels in DIN-rail mounted equipment per Microchip datasheet thermal specifications.
پیشنهادی
Automotive Accessory and Aftermarket Devices
The PIC18F65K90T-I/MRRSL is well-suited for non-safety automotive aftermarket accessories such as battery monitors, tire pressure display units, garage door openers, and remote starters where LCD visualization is required. While not AEC-Q100 qualified itself, the industrial temperature grade and robust PIC18 architecture support under-dash and cabin-mounted installations. The integrated LCD driver eliminates external display hardware, reducing cost in volume aftermarket products. The CTMU capacitive touch supports sealed button interfaces resistant to moisture and contamination. Designers targeting AEC-Q100 applications should select PIC18F family members with explicit automotive qualification suffixes and review Microchip's automotive product portfolio per family datasheet guidance.
پیشنهادی
Smart Home Sensor Hubs with Local Display
The PIC18F65K90T-I/MRRSL fits smart home sensor hubs and environmental monitors that combine temperature, humidity, and air-quality sensing with a segmented LCD for at-a-glance status display. The 12-bit ADC reads multiple analog sensors directly, while the LCD driver shows real-time values without requiring an always-on host processor. nanoWatt XLP sleep modes allow battery-backed operation across power outages, maintaining display functionality for safety-relevant information such as CO2 levels or filter status. I2C and SPI interfaces connect to digital environmental sensors and wireless modules, supporting integration into broader smart home ecosystems per Microchip PIC18F87K90 family application notes.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC18F65K90T-I/MRRSL — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC18F65K90T-I/MR | PIC18F65K90-I/MR | PIC18F65K90-E/MR | PIC18F65K80T-I/PT | PIC18F65K40-I/PT |
|---|---|---|---|---|---|---|
| Package | VQFN-64 (9x9 mm) with Exposed Pad | VQFN-64 (9x9 mm) - identical | VQFN-64 (9x9 mm) - identical | VQFN-64 (9x9 mm) - identical | TQFP-64 (different footprint) | TQFP-64 (different footprint) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 32KB (16K x 16) | 32KB (16K x 16) | 32KB (16K x 16) | 32KB (16K x 16) | 32KB equivalent | 32KB |
| Maximum Clock Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| RAM Size | 2KB | 2KB | 2KB | 2KB | 2KB | 2KB |
| EEPROM Size | 1KB | 1KB | 1KB | 1KB | 1KB | 1KB |
| Number of I/O | 53 | 53 | 53 | 53 | 53 | 53 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| Packaging Form | Tape & Reel (RSL suffix) | Tape & Reel (MR suffix) | Tray | Tray | Tape & Reel | Tray |
تفاوت‌های کلیدی
- Reel packaging variant of base PIC18F65K90T-I/MR with identical silicon and footprint (در مقابلPIC18F65K90T-I/MR)
- Extended temperature grade variant available for harsh-environment deployments (در مقابلPIC18F65K90-E/MR)
- Newer-generation K40 family migration path with enhanced peripherals (در مقابلPIC18F65K40-I/PT)
یادداشت‌های طراحی
Decouple VDD pins (7, 28, 40, 64) with 100 nF ceramic capacitors placed within 5 mm of each VDD pin, plus a bulk 4.7 uF to 10 uF tantalum or ceramic capacitor on the main supply rail. The PIC18F65K90T-I/MRRSL has four VDD pins distributed across the package; each must be properly decoupled to suppress switching noise during nanoWatt XLP mode transitions. Per Microchip PIC18F87K90 family datasheet, inadequate decoupling can cause POR resets and corrupted EEPROM writes during deep-sleep wake events.
The 64-pin VQFN package features a center exposed thermal pad that MUST be soldered to a PCB land pattern with at least 8 thermal vias to the ground plane for mechanical reliability and thermal dissipation. Missing or insufficient solder joints under the e-pad can cause intermittent connections and lift during thermal cycling. Per IPC-7351 land pattern guidelines, allocate a 5x5 array of 0.3 mm vias on 1.0 mm pitch for optimal thermal performance in surface-mount reflow.
Do not leave unused I/O pins floating; configure them as outputs driving low or enable the internal weak pull-ups via firmware to avoid excessive supply current in sleep modes. Floating LCD segment pins can also cause ghost segments on the display. Per the PIC18F87K90 family datasheet, unused CTMU channels must be disabled to prevent charge accumulation leakage that degrades nanoWatt XLP deep-sleep current below the specified minimum.
Route the LCD segment lines (SEG0 through SEG65) as short as possible and avoid running them parallel to high-frequency switching signals such as PWM outputs or oscillator traces to minimize capacitive coupling and display ghosting. The CTMU touch channels require guard traces or grounded shielding around sensor electrodes for moisture immunity per Microchip application note AN1250. Keep analog ADC traces away from digital switching signals and place a ground pour under the MCU to reduce noise pickup on low-level sensor measurements.
اطلاعات انطباق
RoHS and REACH compliant per Microchip product page. Industrial temperature grade; not AEC-Q100 qualified - select AEC-Q100 qualified PIC18 variants for automotive safety applications.
