PIC18LF6393-I/PT - 8KB Flash 8-bit MCU w/ LCD Driver TQFP-64
MPN: PIC18LF6393-I/PT ✓ Hoạt độngPIC18LF6393-I/PT Tóm tắt
The PIC18LF6393 belongs to the PIC18F family of 8-bit microcontrollers, which use Microchip's enhanced RISC architecture. In the wider semiconductor taxonomy, PIC18F MCUs sit under the broader categories: 8-bit microcontroller -> microcontroller unit (MCU) -> embedded controller -> semiconductor IC. The "LF" prefix designates the low-voltage, extended-range variant supporting 2.0 V to 5.5 V operation, while the integrated LCD driver reduces BOM count in display-equipped products.
Key features include 54 digital I/O ports, three serial communication peripherals (I2C, SPI, and UART/USART), 128-segment LCD driver support, 12-bit ADC resolution, and a Flash-based program memory that supports in-circuit serial programming (ICSP). Industrial temperature range (-40C to +85C) makes the part suitable for factory-floor and outdoor equipment.
Typical applications include white goods and home appliances with segment LCD displays, medical instrumentation front panels, industrial control HMIs, automotive dashboard clusters, point-of-sale terminals, and metering equipment. The integrated 128-segment LCD controller eliminates the need for an external driver IC in human-machine interface designs.
When designing with this device, allocate one of the available timer modules for the LCD charge-pump reference if contrast stability is required. Designers migrating from PIC18F6393 to the LF variant gain lower-voltage operation at the cost of a slightly reduced maximum clock frequency.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF6393-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 PIC18LF6393-I/PT (cùng hình factor và footprint) — khác nhau ở Package, LCD Driver, Operating Temperature, Program Memory (Flash), ADC.
PIC18F6393-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F6493-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF47J53-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F46J50-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF46J11-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF6393-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18 8-bit RISC |
| Program Memory (Flash) | 8 KB (4K x 16) |
| RAM | 768 bytes |
| Maximum Clock Speed | 40 MHz |
| Điện áp cung cấp | 4.2 V to 5.5 V |
| Digital I/O Pins | 54 |
| ADC | 12 channels x 12-bit |
| LCD Driver | Integrated, up to 128 segments |
| Serial Interfaces | I2C, SPI, UART/USART |
| Hộp | TQFP-64 (PT), 10x10 mm, 1.0 mm pitch |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Lead-Free / RoHS | Yes / Compliant |
Cấu hình chân PIC18LF6393-I/PT
| Chân 1 | RC0 — Digital I/O / T0CKI |
| Chân 2 | RC1 — Digital I/O |
| Chân 3 | RC2 — Digital I/O / CCP1 |
| Chân 4 | RC3 — Digital I/O / SCL |
| Chân 5 | RC4 — Digital I/O / SDA |
| Chân 6 | RC5 — Digital I/O / SDO |
| Chân 7 | RC6 — Digital I/O / TX |
| Chân 8 | RC7 — Digital I/O / RX |
| Chân 9 | SEG0 — LCD segment output 0 |
| Chân 10 | SEG1 — LCD segment output 1 |
| Chân 11 | SEG2 — LCD segment output 2 |
| Chân 12 | SEG3 — LCD segment output 3 |
| Chân 13 | SEG4 — LCD segment output 4 |
| Chân 14 | SEG5 — LCD segment output 5 |
| Chân 15 | SEG6 — LCD segment output 6 |
| Chân 16 | SEG7 — LCD segment output 7 |
| Chân 17 | VDD — Positive supply voltage |
| Chân 18 | VSS — Ground |
| Chân 19 | OSC1/RA7 — Crystal oscillator input / digital I/O |
| Chân 20 | OSC2/RA6 — Crystal oscillator output / digital I/O |
| Chân 21 | LCDBIAS0 — LCD bias control 0 |
| Chân 22 | LCDBIAS1 — LCD bias control 1 |
| Chân 23 | LCDBIAS2 — LCD bias control 2 |
| Chân 24 | VLCAP1 — LCD charge pump capacitor 1 |
| Chân 25 | VLCAP2 — LCD charge pump capacitor 2 |
| Chân 26 | COM0 — LCD common output 0 |
| Chân 27 | COM1 — LCD common output 1 |
| Chân 28 | COM2 — LCD common output 2 |
| Chân 29 | COM3 — LCD common output 3 |
| Chân 30 | RE0 — Digital I/O |
| Chân 31 | RE1 — Digital I/O |
| Chân 32 | RE2 — Digital I/O |
| Chân 33 | RA0/AN0 — Digital I/O / ADC input 0 |
| Chân 34 | RA1/AN1 — Digital I/O / ADC input 1 |
| Chân 35 | RA2/AN2 — Digital I/O / ADC input 2 |
| Chân 36 | RA3/AN3 — Digital I/O / ADC input 3 |
| Chân 37 | RA4/AN4 — Digital I/O / ADC input 4 |
| Chân 38 | RA5/AN5 — Digital I/O / ADC input 5 |
| Chân 39 | VDD — Positive supply voltage |
| Chân 40 | VSS — Ground |
| Chân 41 | RB0/INT0 — Digital I/O / external interrupt 0 |
| Chân 42 | RB1/INT1 — Digital I/O / external interrupt 1 |
| Chân 43 | RB2 — Digital I/O |
| Chân 44 | RB3 — Digital I/O |
| Chân 45 | RB4 — Digital I/O |
| Chân 46 | RB5 — Digital I/O |
| Chân 47 | RB6/PGC — Digital I/O / ICSP clock |
| Chân 48 | RB7/PGD — Digital I/O / ICSP data |
| Chân 49 | MCLR — Master clear reset input |
| Chân 50 | RD0 — Digital I/O |
| Chân 51 | RD1 — Digital I/O |
| Chân 52 | RD2 — Digital I/O |
| Chân 53 | RD3 — Digital I/O |
| Chân 54 | RD4 — Digital I/O |
| Chân 55 | RD5 — Digital I/O |
| Chân 56 | RD6 — Digital I/O |
| Chân 57 | RD7 — Digital I/O |
| Chân 58 | SEG8 — LCD segment output 8 |
| Chân 59 | SEG9 — LCD segment output 9 |
| Chân 60 | SEG10 — LCD segment output 10 |
| Chân 61 | SEG11 — LCD segment output 11 |
| Chân 62 | SEG12 — LCD segment output 12 |
| Chân 63 | SEG13 — LCD segment output 13 |
| Chân 64 | VSS — Ground |
Ứng dụng tiêu biểu
PIC18LF6393-I/PT phù hợp cho 6 Áp dụngs: White Goods / Home Appliance HMIs, Medical Instrumentation Front Panels, Industrial Control HMIs / Panel Meters, Automotive Dashboard Clusters (Non-Safety), Point-of-Sale Terminals, Utility Metering and Energy Monitors.
White Goods / Home Appliance HMIs
The PIC18LF6393-I/PT is purpose-built for white-goods human-machine interfaces that combine physical buttons, status LEDs, and segment-LCD readouts. The integrated 128-segment LCD controller drives temperature, time, mode, and fault indicators directly without an external charge-pump IC, cutting BOM cost and PCB area. The 12-bit ADC reads thermistor inputs from refrigerators, ovens, and washing machines with 0.1C resolution. With 54 I/O pins available, the part supports matrix-key scanning for 7-10 button arrays and triac/relay control for heater elements. The 4.2-5.5 V supply range is well-matched to rectified mains designs that already produce a 5 V rail. The industrial temperature grade (-40C to +85C) ensures reliable operation near heating elements.
Được đề xuất
Medical Instrumentation Front Panels
Medical instruments such as blood-pressure monitors, glucose meters, and infusion pumps require reliable segment-LCD displays and precision analog measurement. The PIC18LF6393-I/PT's 128-segment LCD controller supports multi-digit numeric readouts plus status icons, while the 12-bit ADC delivers sufficient resolution for blood-pressure waveform sampling or glucose test-strip colorimetric readings. The 8 KB Flash and 768-byte RAM are adequate for menu state machines and small sensor-fusion algorithms. Three serial peripherals (I2C, SPI, UART) enable communication with blood-pressure cuffs, wireless modules, and host PCs. Industrial temperature range and Microchip's long-term product-support policy make the part attractive for medical designs that must remain in production for 10+ years.
Được đề xuất
Industrial Control HMIs / Panel Meters
Factory-floor panel meters, pump controllers, and HVAC thermostats benefit from the PIC18LF6393-I/PT's combination of segment LCD and analog sensing. The 12-bit ADC reads 4-20 mA current loops via a shunt resistor, providing 16-bit effective dynamic range after oversampling. The 128-segment LCD displays process variables (temperature, pressure, flow) and setpoint indicators. The UART/USART enables Modbus RTU or proprietary industrial protocols to a PLC or SCADA master. The 40 MHz core executes control loops in well under 1 ms. Wide operating voltage and industrial temperature rating support outdoor enclosure installation. The integrated peripherals eliminate the need for a dedicated display driver, lowering total panel cost.
Được đề xuất
Automotive Dashboard Clusters (Non-Safety)
Although the PIC18LF6393-I/PT is industrial-grade (-40C to +85C) rather than AEC-Q100 qualified, it can be used in non-safety automotive subsystems such as HVAC control panels, infotainment secondary displays, and climate-control readouts. The integrated 128-segment LCD controller drives classic pixel-style displays for temperature, fan speed, and mode selection. The 12-bit ADC reads potentiometer inputs for rotary knobs, while the I2C bus interfaces with the vehicle body-control module. The 5 V supply range matches the regulated rail available in many automotive subsystems. Designers targeting safety-relevant displays should use AEC-Q100 qualified PIC18F-family alternatives.
Được đề xuất
Point-of-Sale Terminals
Compact point-of-sale terminals and payment-pin-pads require a low-cost MCU that can drive a small LCD, scan a keypad, and communicate with a card reader over UART or SPI. The PIC18LF6393-I/PT's 128-segment LCD suffices for amount and status display, while the 54 I/O pins support matrix keypads and LED indicators. The SPI peripheral talks to a contactless card-reader module at 1-10 MHz. The 768-byte RAM handles transaction buffering. The industrial temperature range ensures reliability in outdoor retail kiosks. The 8 KB Flash is adequate for embedded payment firmware with secure key storage in external EEPROM.
Được đề xuất
Utility Metering and Energy Monitors
Single-phase electricity meters, water-meter displays, and gas-meter AMR endpoints are excellent fits for the PIC18LF6393-I/PT. The 12-bit ADC samples current and voltage waveforms for energy calculation; the 128-segment LCD shows consumption in cubic meters or kWh with multi-digit precision. The integrated LCD controller simplifies the meter's mechanical design by removing a separate driver IC. The 40 MHz core performs real-time RMS and power-factor calculations. The I2C peripheral interfaces with a metering-specific RTC or an RF module for AMR communication. Industrial temperature rating ensures reliability in basement or outdoor meter installations.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF6393-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 | PIC18F6393-I/PT | PIC18F6493-I/PT | PIC18LF47J53-I/PT | PIC18F46J50-I/PT | PIC18LF46J11-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-64 (PT) | TQFP-64 (PT) | TQFP-64 (PT) | TQFP-64 (PT) | TQFP-64 (PT) | TQFP-64 (PT) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 8 KB | 8 KB | 16 KB | 128 KB | 64 KB | 64 KB |
| Integrated LCD Driver | Yes (128 segments) | Yes (128 segments) | Yes (128 segments) | No | No | No |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 10-bit | 10-bit |
| USB Support | No | No | No | Yes (USB 2.0 OTG) | Yes (USB 2.0) | No |
| Supply Voltage Range | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| Max Clock Frequency | 40 MHz | 40 MHz | 40 MHz | 48 MHz | 48 MHz | 48 MHz |
Bảo phân biệt quan trọng
- Integrated 128-segment LCD controller eliminates external driver (vsPIC18F46J50-I/PT)
- 12-bit ADC doubles measurement precision over 10-bit variants (vsPIC18LF46J11-I/PT)
- 8 KB Flash sized for cost-sensitive HMI firmware (vsPIC18F6493-I/PT)
Ghi chú thiết kế
The PIC18LF6393-I/PT operates from 4.2 V to 5.5 V. Place a 100 nF ceramic decoupling capacitor as close as possible to each VDD/VSS pair (the device has two pairs: pins 17/18 and pins 39/40). Add a bulk 10 uF tantalum or aluminum-polymer capacitor on the 5 V rail near the MCU to suppress transient loading from the LCD charge pump, which can draw several hundred microamps during segment transitions.
Route the LCD segment lines (SEG0-SEG13 on this TQFP-64 variant, plus shared I/O) to minimize capacitive crosstalk. Keep SEG traces short and avoid running them parallel to high-frequency digital lines for more than a few millimeters. Place the VLCAP1 and VLCAP2 charge-pump capacitors (pins 24 and 25) within 5 mm of their respective pins with short, wide traces to ground; insufficient decoupling here causes LCD contrast drift and ghost-segment artifacts.
Do not confuse the LF suffix with full 2.0 V to 5.5 V wide-range operation. This specific TQFP-64 variant requires 4.2 V minimum. For designs that need sub-4.2 V operation (e.g., two alkaline cells at 3.0 V), migrate to the PIC18LF47J53 or PIC18LF46J11 family which provides true wide-range operation. Also note that the 64-pin TQFP variant supports the full 128-segment LCD, but smaller-package variants (e.g., 44-pin TQFP) have reduced segment counts.
The PIC18LF6393-I/PT uses ICSP via RB6/PGC and RB7/PGD. If these pins are also used as general-purpose I/O, add 4.7 kohm pull-down resistors on both PGC and PGD lines to prevent spurious programming-mode entry during reset glitches. For noise-sensitive analog inputs (AN0-AN5), add an RC low-pass filter (10 kohm + 100 pF) on each ADC input to reject HF noise from the LCD driver switching activity.
Thông tin tuân thủ
RoHS compliant and lead-free per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified; for automotive applications use PIC18F46K80-I/PT or similar AEC-Q100 parts.
