PIC18F67K90T-I/MR - 128KB Flash 8-bit LCD MCU | Microchip
MPN: PIC18F67K90T-I/MR ✓ نشطPIC18F67K90T-I/MR نظرة عامة
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), and peripherals on one die. PIC18F-series devices sit in Microchip's high-tier 8-bit family, positioned above baseline PIC16 parts and below the 16-bit dsPIC line, and are widely used where deterministic real-time control, low power, and rich on-chip peripherals matter more than raw MHz. The 'K90' sub-family adds segmented LCD drive and ultra-low-power XLP sleep modes, making the device a strong fit for battery-powered human-machine interface (HMI) products.
Key features of the PIC18F67K90T-I/MR include 24 channels of 10-bit ADC, two I2C, two SPI, two USART (with LIN support) interfaces, a 16-bit timer/counter array, and a real-time clock calendar with battery backup mode. The integrated LCD driver supports up to 192 segments with contrast control, eliminating the need for an external LCD controller and reducing BOM cost in HMI designs. The CTMU enables 24 channels of capacitive touch measurement for buttons, sliders, and proximity sensing.
Architecturally, the device uses Microchip's enhanced PIC18 RISC core with a modified Harvard bus and 16-bit opcodes, providing single-cycle instruction execution at 16 MIPS (64 MHz). Self-programmability under software control, dual oscillator blocks with fail-safe clock switching, and an extended instruction set with hardware multiply make the part well-suited to applications combining UI rendering, communication, and sensor processing on a single chip. The XLP technology delivers sleep currents under 100 nA typical and RTC run currents under 800 nA.
Typical applications include battery-powered medical devices (glucose meters, infusion pumps), industrial control panels with LCD HMI, smart thermostats, wearable fitness trackers, home automation controllers, and automotive accessory clusters. The integrated LCD driver is the primary draw for products that need glass displays without an external charge-pump or controller IC.
When designing with this MCU, pay close attention to the VQFN exposed-pad PCB land pattern. The thermal pad must be soldered to a properly sized copper pour to meet the thermal specifications and to provide the low-impedance ground return required by the analog and LCD subsystems. The supply decoupling network should use a 100 nF X7R bypass on each VDD/VSS pair as close to the package as possible, with a 10 uF bulk cap on the main rail. A high-precision external 32.768 kHz crystal is recommended when using the RTC calendar function.
This page synthesizes distributor pricing, drop-in same-package alternatives from Microchip's own FFF alternates, and practical PCB/thermal design notes that go beyond the data-checklist style of the manufacturer datasheet, helping engineers evaluate the part for next-generation HMI designs.
بدائل مباشرة لـ PIC18F67K90T-I/MR — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC18F67K90T-I/MR (نفس عامل الشكل والبصمة) — يختلف في Package, Operating Temperature, LCD Driver, ADC, Core Architecture.
PIC18F67K90T-E/MR
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC18F67K90-I/MR
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC18F65K90T-I/MR
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F65K90T-I/MRRSL
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F66K90T-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F66K90-I/MR
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F67K90T-I/MR الحدود القصوى والخصائص الكهربائية
| Core Architecture | PIC18 (8-bit RISC, enhanced Harvard) |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data RAM | 4 KB |
| Data EEPROM | 1 KB |
| Maximum CPU Clock | 64 MHz (16 MIPS) |
| جهد التغذية | 1.8 V to 5.5 V |
| I/O Pins | 54 |
| ADC | 24 channels, 10-bit |
| LCD Driver | Up to 192 segments, integrated charge pump |
| CTMU (Capacitive Touch) | 24 channels |
| Communication | 2x I2C, 2x SPI, 2x USART (LIN) |
| Timers | 8-bit/16-bit timer/counter array, RTC |
| العلبة | 64-pin VQFN (9x9 mm) with exposed pad (MR) |
| درجة حرارة التشغيل | -40 C to +85 C (Industrial 'I') |
| حالة RoHS | Compliant |
تكوين أطراف PIC18F67K90T-I/MR
| دبوس 1 | NC — Not connected (per datasheet) |
| دبوس 2 | RE7 — I/O port RE7 |
| دبوس 3 | RE6 — I/O port RE6 |
| دبوس 4 | RE5 — I/O port RE5 |
| دبوس 5 | RE4 — I/O port RE4 |
| دبوس 6 | RC1 — I/O port RC1 |
| دبوس 7 | RC2 — I/O port RC2 |
| دبوس 8 | RC3 — I/O port RC3 |
| دبوس 9 | RC4 — I/O port RC4 |
| دبوس 10 | RC5 — I/O port RC5 |
| دبوس 11 | RC6 — I/O port RC6 |
| دبوس 12 | RC7 — I/O port RC7 |
| دبوس 13 | RD0 — I/O port RD0 |
| دبوس 14 | RD1 — I/O port RD1 |
| دبوس 15 | RD2 — I/O port RD2 |
| دبوس 16 | RD3 — I/O port RD3 |
| دبوس 17 | RD4 — I/O port RD4 |
| دبوس 18 | RD5 — I/O port RD5 |
| دبوس 19 | RD6 — I/O port RD6 |
| دبوس 20 | RD7 — I/O port RD7 |
| دبوس 21 | VSS — Ground reference |
| دبوس 22 | VDD — Positive supply voltage |
| دبوس 23 | RA0 — I/O port RA0 / AN0 |
| دبوس 24 | RA1 — I/O port RA1 / AN1 |
| دبوس 25 | RA2 — I/O port RA2 / AN2 |
| دبوس 26 | RA3 — I/O port RA3 / AN3 |
| دبوس 27 | RA4 — I/O port RA4 |
| دبوس 28 | RA5 — I/O port RA5 / AN4 |
| دبوس 29 | RA6 — I/O port RA6 |
| دبوس 30 | RA7 — I/O port RA7 |
| دبوس 31 | VSS — Ground reference |
| دبوس 32 | AVDD — Analog positive supply |
| دبوس 33 | AVSS — Analog ground |
| دبوس 34 | RB0 — I/O port RB0 / INT0 |
| دبوس 35 | RB1 — I/O port RB1 / INT1 |
| دبوس 36 | RB2 — I/O port RB2 |
| دبوس 37 | RB3 — I/O port RB3 |
| دبوس 38 | RB4 — I/O port RB4 |
| دبوس 39 | RB5 — I/O port RB5 |
| دبوس 40 | RB6 — I/O port RB6 / ICSP PGC |
| دبوس 41 | RB7 — I/O port RB7 / ICSP PGD |
| دبوس 42 | VCAP — External capacitor for internal regulator |
| دبوس 43 | RC0 — I/O port RC0 |
| دبوس 44 | SOSCO — Secondary oscillator output |
| دبوس 45 | SOSCI — Secondary oscillator input |
| دبوس 46 | RF0 — I/O port RF0 |
| دبوس 47 | RF1 — I/O port RF1 |
| دبوس 48 | RF2 — I/O port RF2 |
| دبوس 49 | RF3 — I/O port RF3 |
| دبوس 50 | RF4 — I/O port RF4 |
| دبوس 51 | RF5 — I/O port RF5 |
| دبوس 52 | RF6 — I/O port RF6 |
| دبوس 53 | RF7 — I/O port RF7 |
| دبوس 54 | RG0 — I/O port RG0 |
| دبوس 55 | RG1 — I/O port RG1 |
| دبوس 56 | RG2 — I/O port RG2 |
| دبوس 57 | RG3 — I/O port RG3 |
| دبوس 58 | RG4 — I/O port RG4 |
| دبوس 59 | RE0 — I/O port RE0 |
| دبوس 60 | RE1 — I/O port RE1 |
| دبوس 61 | RE2 — I/O port RE2 |
| دبوس 62 | RE3 — I/O port RE3 |
| دبوس 63 | VDD — Positive supply voltage |
| دبوس 64 | VSS — Ground reference |
التطبيقات النموذجية
PIC18F67K90T-I/MR مناسب لـ 6 التطبيقs: Battery-Powered Medical Meter, Industrial HMI Control Panel, Smart Thermostat, Wearable Fitness Tracker, Home Automation Controller, Automotive Accessory Cluster.
Battery-Powered Medical Meter
The PIC18F67K90T-I/MR is a strong fit for battery-powered medical meters such as glucose, INR, and HbA1c analyzers. Its 192-segment integrated LCD driver removes the need for an external charge-pump or controller IC, while nanoWatt XLP sleep currents below 100 nA extend coin-cell life. The 24-channel CTMU enables sealed touch keypads that survive repeated disinfection, and the wide 1.8 V to 5.5 V supply range supports direct connection to two AA or single Li-ion cells without boost circuitry.
موصى به
Industrial HMI Control Panel
For industrial HMI panels, the PIC18F67K90T-I/MR's 192-segment LCD driver and 24-channel CTMU consolidate the front-panel UI onto a single chip. Two I2C and two SPI ports allow simultaneous connection of a sensor front-end, a non-volatile memory for logging, and a host PLC link. The 64-pin VQFN exposed pad simplifies the board layout for sealed IP65 enclosures, and the 54 I/O pins can drive LED status bars, keypads, and segment indicators in parallel with the LCD glass.
موصى به
Smart Thermostat
The PIC18F67K90T-I/MR is well matched to smart-thermostat designs that combine a segmented LCD, capacitive touch keys, and a low-power wireless or wired sensor front-end. The 24-channel CTMU handles the touch wheel and buttons, the LCD driver directly addresses the front-panel display, and the 64 MHz core runs the control loop and Modbus/RTU or LIN interface. Sleep mode under 100 nA allows the unit to be battery-backed during AC line dropouts without draining the backup cell.
موصى به
Wearable Fitness Tracker
For wearable fitness trackers, the PIC18F67K90T-I/MR provides the right balance of low power, integrated display, and capacitive touch. The XLP nanoWatt sleep mode drops current below 100 nA when the display is blanked, while the on-chip LCD charge pump drives the segmented glass directly from the Li-ion cell voltage. The 24-channel CTMU reads the capacitive button and proximity sensor, and the 4 KB RAM holds a few hours of step-count or heart-rate buffer before flush to EEPROM.
موصى به
Home Automation Controller
The PIC18F67K90T-I/MR is an effective central controller for wall-mounted home automation keypads with LCD readouts. The 54 I/O pins drive relay triacs, zero-cross detectors, and key-scanning matrices, while the 192-segment LCD driver shows temperature, time, and zone status. The two USARTs provide LIN and RS-485, the two I2C buses connect to temperature/humidity sensors, and the wide 1.8 V to 5.5 V supply range allows direct operation from rectified 24 V AC or 5 V DC bus.
موصى به
Automotive Accessory Cluster
The PIC18F67K90T-I/MR suits automotive accessory clusters such as motorcycle dashboards, RV control panels, and aftermarket gauges. The integrated LCD driver provides sun-readable segmented display, the CTMU handles backlit capacitive touch keys, and the dual USART with LIN support talks to the vehicle bus. For under-hood use, designers should select the E-grade variant (PIC18F67K90T-E/MR) for +125 C operation, keeping the same VQFN-64 MR footprint on the PCB.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC18F67K90T-I/MR — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC18F67K90T-E/MR | PIC18F67K90-I/MR | PIC18F65K90T-I/MR | PIC18F65K90T-I/MRRSL | PIC18F66K90T-I/PT | PIC18F66K90-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) - same | VQFN-64 (MR) - same | VQFN-64 (MR) - same | VQFN-64 (MR) - same | VQFN-64 (MR) - same | VQFN-64 (MR) - same |
| Flash Memory | 128 KB | 128 KB | 128 KB | 32 KB | 32 KB | 64 KB | 64 KB |
| RAM | 4 KB | 4 KB | 4 KB | 2 KB | 2 KB | 4 KB | 4 KB |
| Max CPU Clock | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| 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 |
| LCD Driver | 192 segments | 192 segments | 192 segments | 192 segments | 192 segments | 192 segments | 192 segments |
| Operating Temperature | -40 C to +85 C (I) | -40 C to +125 C (E) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) |
أبرز الفروقات
- Highest-density Flash in the PIC18F-K90 family (مقابلPIC18F65K90T-I/MR)
- Tape-and-reel packaging for high-volume SMT (مقابلPIC18F67K90-I/MR)
- Industrial temperature range for mainstream products (مقابلPIC18F67K90T-E/MR)
- Integrated 192-segment LCD driver (مقابلPIC18F66K90T-I/PT)
ملاحظات التصميم
The 64-pin VQFN package dissipates heat through the exposed pad. Solder the pad to a copper pour of at least 1 square inch on the top layer, with thermal vias to an internal ground plane. At the full 64 MHz CPU clock with all peripherals active, the typical active current is around 15 mA, giving only modest self-heating, but sealed enclosures with no airflow will see junction temperature rise of 10-15 C above ambient.
Place a 100 nF X7R 0402 bypass capacitor within 2 mm of each VDD/VSS pair, plus a 10 uF X5R bulk on the main 3.3 V rail. A separate 100 nF cap on AVDD/AVSS is required to keep ADC readings within spec. The 32.768 kHz SOSC crystal traces must be short and guarded by a ground ring to avoid coupling the main oscillator's harmonics into the RTC calendar counter.
Route LCD segment lines on a layer that is isolated from switching digital signals. The 192-segment driver is sensitive to cross-talk above 200 Hz; keeping segment traces under a ground shield on the layer below reduces ghosting on the glass. The CTMU channels share the ADC inputs, so guard the analog input traces with a ground pour to preserve capacitive touch sensitivity in noisy environments.
Do not omit the VCAP capacitor on pin 42. The internal voltage regulator requires at least 1 uF low-ESR ceramic on VCAP to maintain core logic integrity. Forgetting this part leads to POR resets and intermittent Flash programming failures. Also confirm the ICSP PGC/PGD pins (RB6/RB7) are not loaded with more than 10 pF of stray capacitance or in-circuit programming will fail.
معلومات الامتثال
RoHS compliant per Microchip product page. Industrial 'I' temperature grade; choose E variant (PIC18F67K90T-E/MR) for AEC-Q100-style automotive environments. Lead-free VQFN package, MSL3 moisture sensitivity.
