PIC18F67K90T-I/PT - 64MHz 8-bit PIC MCU 128KB Flash LCD TQFP-64
MPN: PIC18F67K90T-I/PT ✓ Hoạt độngPIC18F67K90T-I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash/ROM), volatile data memory (RAM), and a configurable set of peripheral interfaces into one package. Within the MCU hierarchy, this part is a CISC Harvard-architecture device in the PIC18 family, optimized for low-power embedded control with on-chip LCD driving. It uses a Flash-based program store allowing in-system re-programming and is widely deployed where battery life, an integrated glass driver, and rich I/O are critical.
Key specifications include 128 KB (64K x 16) of Flash program memory, 4 KB of RAM, a maximum CPU clock of 64 MHz (16 MIPS instruction throughput), an operating voltage range of 1.8 V to 5.5 V (with the wider 4.2 V to 5.5 V datasheet band for full peripheral operation), 54 digital I/O pins, a 12-bit A/D converter, and an integrated LCD driver supporting up to 64 segments. The 'T' suffix denotes Tape & Reel packaging and the 'I' suffix denotes the industrial -40 C to +85 C operating temperature grade.
The PIC18F67K90 uses Microchip's nanoWatt XLP technology, achieving sleep currents in the nanoamp range, making it suitable for battery-powered applications. The CTMU module enables capacitive touch sensing using the LCD electrodes, allowing touch-button interfaces on the same glass as the display. Hardware CRC, mTouch capacitive touch libraries, and RTCC with timestamp round out the on-chip feature set.
Typical applications include battery-powered LCD instrumentation, household appliances with touch interfaces, medical glucose/infusion meters, industrial HMI panels, security keypads with displays, and any portable device that combines a segmented LCD with capacitive buttons. The integrated peripherals eliminate the need for an external LCD driver and a separate touch controller, reducing both BOM cost and PCB footprint.
Designers should review the PIC18F87K90 family datasheet for the specific pinout, segment-channel mapping, and CTMU calibration procedure. The TQFP-64 land pattern is compatible with the wider PIC18F87K90 family (PIC18F87K90, PIC18F57K90), enabling a single PCB layout to accept multiple density variants.
Bộ thay thế dễ dàng lắp đặt cho PIC18F67K90T-I/PT — 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 PIC18F67K90T-I/PT (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, ADC, Operating Temperature, Data EEPROM.
PIC18F67K90-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F67K90T-I/MR
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Xem tài liệu →PIC18F67K90T-E/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F66K90T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F67K22T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F67K90T-I/PT Tỷ lệ tối đa & tính chất điện
| Core | PIC18 (8-bit Harvard, CISC) |
| Family | PIC18F87K90 / PIC18F67K90 |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data RAM | 4 KB |
| Maximum CPU Clock | 64 MHz |
| MIPS Performance | 16 MIPS |
| Supply Voltage (Operating) | 1.8 V to 5.5 V (extended 4.2 V to 5.5 V for full peripheral range) |
| I/O Pins | 54 |
| CTMU Module | Yes (Charge Time Measurement Unit for capacitive touch) |
| nanoWatt XLP | Yes (ultra-low-power sleep modes) |
| Hộp | TQFP-64 (10x10 mm, 1.0 mm height, MS-026) |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial, 'I' suffix) |
| Kiểu lắp đặt | Surface Mount (Tape & Reel, 'T' suffix) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân PIC18F67K90T-I/PT
| Chân 1 | RC0 — Digital I/O / T0CKI timer0 clock input |
| Chân 2 | RC1 — Digital I/O / CCP2 capture/compare/PWM |
| Chân 3 | RC2 — Digital I/O / CCP1 |
| Chân 4 | RC3 — Digital I/O / SCL I2C clock |
| Chân 5 | RC4 — Digital I/O / SDA I2C data |
| Chân 6 | RC5 — Digital I/O / SDO SPI data out |
| Chân 7 | RC6 — Digital I/O / TX UART transmit |
| Chân 8 | RC7 — Digital I/O / RX UART receive |
| Chân 9 | RE0 — Digital I/O |
| Chân 10 | RE1 — Digital I/O |
| Chân 11 | RE2 — Digital I/O |
| Chân 12 | RE3 — Digital I/O |
| Chân 13 | RE4 — Digital I/O |
| Chân 14 | RE5 — Digital I/O |
| Chân 15 | RE6 — Digital I/O |
| Chân 16 | RE7 — Digital I/O |
| Chân 17 | VSS — Ground reference |
| Chân 18 | VDD — Positive supply voltage |
| Chân 19 | RA0 — Digital I/O / AN0 analog input |
| Chân 20 | RA1 — Digital I/O / AN1 |
| Chân 21 | RA2 — Digital I/O / AN2 |
| Chân 22 | RA3 — Digital I/O / AN3 / VREF+ |
| Chân 23 | RA4 — Digital I/O / AN4 |
| Chân 24 | RA5 — Digital I/O / AN5 / VREF- |
| Chân 25 | RB0 — Digital I/O / INT0 external interrupt |
| Chân 26 | RB1 — Digital I/O / INT1 |
| Chân 27 | RB2 — Digital I/O / INT2 |
| Chân 28 | RB3 — Digital I/O / INT3 |
| Chân 29 | RB4 — Digital I/O / KBI0 |
| Chân 30 | RB5 — Digital I/O / KBI1 |
| Chân 31 | RB6 — Digital I/O / KBI2 / PGC ICD |
| Chân 32 | RB7 — Digital I/O / KBI3 / PGD ICD |
| Chân 33 | AVSS — Analog ground |
| Chân 34 | AVDD — Analog positive supply |
| Chân 35 | RD0 — Digital I/O / PSP0 |
| Chân 36 | RD1 — Digital I/O / PSP1 |
| Chân 37 | RD2 — Digital I/O / PSP2 |
| Chân 38 | RD3 — Digital I/O / PSP3 |
| Chân 39 | RD4 — Digital I/O / PSP4 |
| Chân 40 | RD5 — Digital I/O / PSP5 |
| Chân 41 | RD6 — Digital I/O / PSP6 |
| Chân 42 | RD7 — Digital I/O / PSP7 |
| Chân 43 | VSS — Ground reference |
| Chân 44 | VDD — Positive supply voltage |
| Chân 45 | RF0 — Digital I/O / LCD segment driver |
| Chân 46 | RF1 — Digital I/O / LCD segment driver |
| Chân 47 | RF2 — Digital I/O / LCD segment driver |
| Chân 48 | RF3 — Digital I/O / LCD segment driver |
| Chân 49 | RF4 — Digital I/O / LCD segment driver |
| Chân 50 | RF5 — Digital I/O / LCD segment driver |
| Chân 51 | RF6 — Digital I/O / LCD segment driver |
| Chân 52 | RF7 — Digital I/O / LCD segment driver |
| Chân 53 | RG0 — Digital I/O / LCD segment driver |
| Chân 54 | RG1 — Digital I/O / LCD segment driver |
| Chân 55 | RG2 — Digital I/O / LCD segment driver |
| Chân 56 | RG3 — Digital I/O / LCD segment driver |
| Chân 57 | RG4 — Digital I/O / LCD segment driver |
| Chân 58 | MCLR — Master Clear (reset, active low) |
| Chân 59 | OSC1 — Crystal oscillator input |
| Chân 60 | OSC2 — Crystal oscillator output |
| Chân 61 | VDD — Positive supply voltage |
| Chân 62 | VSS — Ground reference |
| Chân 63 | RH0 — Digital I/O / LCD segment driver |
| Chân 64 | RH1 — Digital I/O / LCD segment driver |
Ứng dụng tiêu biểu
PIC18F67K90T-I/PT phù hợp cho 6 Áp dụngs: Battery-Powered LCD Instrumentation, Capacitive-Touch HMI Panels, Medical Glucose / Infusion Pumps, Industrial HMI / Process Meters, Security Keypads with LCD, Home Appliance Front Panels.
Battery-Powered LCD Instrumentation
The PIC18F67K90T-I/PT is purpose-built for battery-powered LCD products that demand years of service life. With nanoWatt XLP sleep currents in the nanoamp range and the integrated LCD driver (eliminating an external charge-pump IC), the part can drive a 4-common / 32-segment glass directly while running the CPU at 64 MHz only when measurements occur. At 1.8 V to 5.5 V supply and 54 I/O pins, designers can support two AA cells, a coin-cell RTC backup, and a segmented LCD plus push-button interface on a single PCB.
Được đề xuất
Capacitive-Touch HMI Panels
The Charge Time Measurement Unit (CTMU) and mTouch library turn the LCD segment electrodes into capacitive touch buttons without any external touch controller. The PIC18F67K90T-I/PT's 64 MHz CPU clocks the CTMU fast enough to scan 24+ touch channels at sub-10 ms response times, while the 12-bit ADC captures analog sensor data from the same chip. Designers get BOM savings by combining the display driver and touch controller in one MCU, with all touch thresholds handled in firmware via Microchip's free mTouch libraries.
Được đề xuất
Medical Glucose / Infusion Pumps
Portable medical devices benefit from the PIC18F67K90T-I/PT's combination of regulatory-friendly -40 C to +85 C industrial temperature range (E suffix extends to +125 C), nanoWatt XLP battery life, and hardware CRC for tamper detection on dose logs. The 128 KB Flash supports IEC 62304 firmware with substantial headroom for a safety stack and bootloader, while the LCD driver presents measurement values on the patient-facing glass display. The CTMU enables touch-sensitive membrane keypads without extra components.
Được đề xuất
Industrial HMI / Process Meters
Factory-floor panel meters require an MCU that can drive a numeric LCD, handle keypad input, run a 4 mA to 20 mA loop interface, and survive -40 C to +85 C ambient. The PIC18F67K90T-I/PT provides 54 GPIO pins for keypad scanning, isolated UART for Modbus RTU, and a 12-bit ADC for the analog loop measurement - all in a single 64-pin TQFP. The integrated LCD driver cuts the BOM by replacing a dedicated HT1621 or similar segment driver with on-chip hardware.
Được đề xuất
Security Keypads with LCD
Alarm keypads with character displays need an MCU that can scan a 4x4 matrix, drive a 16x2 or 20x4 character LCD equivalent segmented display, communicate with the main panel via encrypted bus, and survive for years on a backup battery. The PIC18F67K90T-I/PT covers all of these with its 54 GPIO (matrix + LCD + comm bus), hardware CRC, and nanoWatt XLP deep-sleep mode. The CTMU enables capacitive-touch slider for arm/disarm without mechanical buttons.
Được đề xuất
Home Appliance Front Panels
White-goods front panels (washers, dishwashers, ovens) combine a segmented LCD, capacitive-touch buttons, and a triac/stepper-motor interface - exactly the workload that the PIC18F67K90T-I/PT was designed for. Its 64 MHz CPU cycles the LCD duty routine fast enough for high-contrast glass, the CTMU senses the touch overlay, and the 54 GPIO handles motor phase drivers and rotary encoders. The 1.8 V to 5.5 V range lets the same PCB host 5 V logic or 3.3 V variants.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F67K90T-I/PT — 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/PT | PIC18F67K90T-I/MR | PIC18F67K90T-E/PT | PIC18F66K90T-I/PT | PIC18F67K22T-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC18 8-bit | PIC18 8-bit | PIC18 8-bit | PIC18 8-bit | PIC18 8-bit | PIC18 8-bit |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB (-50%) | 128 KB |
| Maximum CPU Clock | 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 |
| LCD Driver | Yes (integrated) | Yes | Yes | Yes | Yes | No (K22 family lacks LCD) |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (extended) | -40 C to +85 C | -40 C to +85 C |
| Packaging | Tape & Reel (T) | Tray (no T) | Tape & Reel (T) | Tape & Reel (T) | Tape & Reel (T) | Tape & Reel (T) |
Bảo phân biệt quan trọng
- Same TQFP-64 die, different packaging only (vsPIC18F67K90-I/PT)
- Extended temperature option in same footprint (vsPIC18F67K90T-E/PT)
- Memory-scaled drop-in (vsPIC18F66K90T-I/PT)
- Integrated LCD driver eliminates external chip (vsPIC18F67K22T-I/PT)
Ghi chú thiết kế
Use the nanoWatt XLP sleep modes aggressively for battery-powered designs. Idle mode draws ~50 nA typical and Sleep mode draws <100 nA typical per the family datasheet; the PIC18F67K90T-I/PT wakes from sleep on RTCC alarm, INTx edge, or watchdog timeout in under 5 us. A typical battery-powered LCD meter can run for 5+ years on 2x AA cells if the CPU spends >99% of its time in sleep, waking only to refresh the LCD and sample sensors.
Place a 100 nF decoupling capacitor within 5 mm of each VDD pin and a single 10 uF bulk capacitor near the package. The TQFP-64 has multiple VDD/VSS pairs (pins 18/17, 44/43, 61/62, plus AVDD/AVSS at 34/33) - every analog and digital rail must be locally bypassed. A 4-layer PCB with a solid ground plane is strongly recommended for EMI-sensitive products that combine LCD segment drivers with capacitive touch sensing.
Keep LCD segment traces short and parallel, with equal trace lengths per COM/SEG pair to avoid contrast non-uniformity across the glass. Route CTMU touch channels on the opposite side of the PCB from the LCD segment traces, and shield them with a ground pour to prevent capacitive-coupling noise from the LCD charge-pump waveforms from injecting into the touch measurements. The CTMU calibration sequence (per Microchip TB3068) must be re-run for any PCB layout change.
Do not confuse the 'T' suffix with a different silicon revision - PIC18F67K90T-I/PT and PIC18F67K90-I/PT share identical silicon and only differ in Tape & Reel versus Tray packaging. Do not select the K22 family (PIC18F67K22T-I/PT) if your design requires the integrated LCD driver - the K22 silicon intentionally omits the LCD peripheral. Do not exceed 5.5 V on any pin; absolute-maximum VDD is 6.5 V and brief overshoots will permanently damage the part.
Thông tin tuân thủ
RoHS-compliant per Microchip product page and DigiKey listing. Not AEC-Q100 qualified - for automotive applications, source parts through Microchip's AEC-Q100 program (separate part numbers). Lead-free reflow profile per JEDEC J-STD-020.
