PIC18F66J93-I/PT - 48MHz, 64KB Flash LCD MCU, 64-TQFP | Microchip
MPN: PIC18F66J93-I/PT ✓ Hoạt độngPIC18F66J93-I/PT Tóm tắt
What is an 8-bit LCD microcontroller? An 8-bit LCD microcontroller is a single-chip computer that combines a CPU, non-volatile Flash memory, RAM, peripherals, and an integrated segmented LCD driver. The PIC18F66J93 belongs to the taxonomy: microcontroller -> 8-bit MCU -> PIC18 family -> PIC18J LCD sub-family -> power-managed (nanoWatt XLP). It is typically chosen when a product needs a graphical or numeric LCD readout without an external LCD controller, plus analog sensing.
Key features include 64 KB of self-programmable Flash, 4 KB of RAM, integrated segmented LCD driver (up to 64 segments typical), 12-bit A/D with 12 input channels, nanoWatt XLP for ultra-low sleep currents, multiple communication peripherals (UART, SPI, I2C), and a wide operating voltage range. The integrated LCD driver eliminates an external charge-pump IC and reduces BOM cost in handheld products.
From a technical-depth perspective, the PIC18F66J93 uses an enhanced Harvard architecture with a C-optimized instruction set, hardware multiplier, and 31-level hardware stack. The nanoWatt XLP technology delivers deep-sleep currents in the nanoampere range, making the device suitable for battery-powered meters. The integrated 12-bit ADC includes internal reference and automatic acquisition modes for accurate sensor measurements.
Typical applications include handheld battery-powered meters, thermostats and HVAC controllers, home security panels, portable medical devices (glucometers, BP monitors), and utility metering products. The combination of integrated LCD, ADC, and low-power operation makes the part a single-chip solution for these applications.
When designing with this device, plan the LCD segment routing carefully because the maximum segment count depends on the chosen pin assignment and multiplexing mode. Use Microchip's MPLAB X IDE and the PIC18F66J93 Peripheral Library to accelerate firmware development. Provide a decoupling capacitor pair (100 nF + 10 uF) close to VDD/VSS to ensure ADC and LCD reference stability.
This page synthesizes distributor pricing, drop-in compatible PIC18 family alternatives from the same TQFP-64 footprint, and practical design notes not consolidated in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC18F66J93-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 PIC18F66J93-I/PT (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, Core, LCD Driver.
PIC18F66J94-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F65J94-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F66J90-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F66J55-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F66J50T-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F66J93-I/PT Tỷ lệ tối đa & tính chất điện
| Product Family | PIC18J (LCD PIC18) |
| Core | 8-bit PIC18 enhanced Harvard |
| CPU Speed | 48 MHz (12 MIPS) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| RAM | 4 KB |
| ADC | 12-bit, 12 channels |
| LCD Driver | Integrated segmented LCD controller |
| Communication | UART, SPI, I2C |
| Low Power Technology | nanoWatt XLP |
| Hộp | TQFP-64 (PT) 10x10 mm |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial, -I suffix) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F66J93-I/PT
| Chân 1 | VDD — Positive supply voltage |
| Chân 2 | OSC1 — External oscillator input |
| Chân 3 | OSC2 — External oscillator output |
| Chân 4 | MCLR — Master clear / reset input |
| Chân 5 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Chân 6 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Chân 7 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Chân 8 | RA3/AN3 — PORTA bit 3 / analog input 3 |
| Chân 9 | RA4/AN4 — PORTA bit 4 / analog input 4 |
| Chân 10 | RA5/AN5 — PORTA bit 5 / analog input 5 |
| Chân 11 | RA6 — PORTA bit 6 |
| Chân 12 | RA7 — PORTA bit 7 |
| Chân 13 | VSS — Ground reference |
| Chân 14 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| Chân 15 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Chân 16 | RB2 — PORTB bit 2 |
| Chân 17 | RB3 — PORTB bit 3 |
| Chân 18 | RB4 — PORTB bit 4 |
| Chân 19 | RB5 — PORTB bit 5 |
| Chân 20 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Chân 21 | RB7/PGD — PORTB bit 7 / ICSP data |
| Chân 22 | RC0 — PORTC bit 0 |
| Chân 23 | RC1 — PORTC bit 1 |
| Chân 24 | RC2 — PORTC bit 2 |
| Chân 25 | RC3 — PORTC bit 3 |
| Chân 26 | RC4 — PORTC bit 4 |
| Chân 27 | RC5 — PORTC bit 5 |
| Chân 28 | RC6 — PORTC bit 6 |
| Chân 29 | RC7 — PORTC bit 7 |
| Chân 30 | VSS — Ground reference |
| Chân 31 | VDD — Positive supply voltage |
| Chân 32 | RD0 — PORTD bit 0 |
| Chân 33 | RD1 — PORTD bit 1 |
| Chân 34 | RD2 — PORTD bit 2 |
| Chân 35 | RD3 — PORTD bit 3 |
| Chân 36 | RD4 — PORTD bit 4 |
| Chân 37 | RD5 — PORTD bit 5 |
| Chân 38 | RD6 — PORTD bit 6 |
| Chân 39 | RD7 — PORTD bit 7 |
| Chân 40 | RE0 — PORTE bit 0 |
| Chân 41 | RE1 — PORTE bit 1 |
| Chân 42 | RE2 — PORTE bit 2 |
| Chân 43 | RE3 — PORTE bit 3 |
| Chân 44 | RE4 — PORTE bit 4 |
| Chân 45 | RE5 — PORTE bit 5 |
| Chân 46 | RE6 — PORTE bit 6 |
| Chân 47 | RE7 — PORTE bit 7 |
| Chân 48 | RF0 — PORTF bit 0 (LCD segment) |
| Chân 49 | RF1 — PORTF bit 1 (LCD segment) |
| Chân 50 | RF2 — PORTF bit 2 (LCD segment) |
| Chân 51 | RF3 — PORTF bit 3 (LCD segment) |
| Chân 52 | RF4 — PORTF bit 4 (LCD segment) |
| Chân 53 | RF5 — PORTF bit 5 (LCD segment) |
| Chân 54 | RF6 — PORTF bit 6 (LCD segment) |
| Chân 55 | RF7 — PORTF bit 7 (LCD segment) |
| Chân 56 | RG0 — PORTG bit 0 |
| Chân 57 | RG1 — PORTG bit 1 |
| Chân 58 | RG2 — PORTG bit 2 |
| Chân 59 | RG3 — PORTG bit 3 |
| Chân 60 | RG4 — PORTG bit 4 |
| Chân 61 | AVDD — Analog supply voltage |
| Chân 62 | AVSS — Analog ground |
| Chân 63 | VLCD1 — LCD bias voltage 1 |
| Chân 64 | VLCD2 — LCD bias voltage 2 |
Ứng dụng tiêu biểu
PIC18F66J93-I/PT phù hợp cho 6 Áp dụngs: Handheld Battery-Powered Meters, Thermostats and HVAC Controllers, Home Security Panels, Portable Medical Devices, Utility Metering (Electric / Water / Gas), Industrial Control Panels.
Handheld Battery-Powered Meters
The PIC18F66J93-I/PT's nanoWatt XLP technology delivers nanoampere sleep currents and integrated 12-bit ADC makes it ideal for handheld battery-powered meters (multimeters, clamp meters). The integrated segmented LCD driver eliminates an external charge-pump IC, reducing BOM cost. Typical designs run from 2xAA cells with the 64 KB Flash and 4 KB RAM supporting user interface, calibration, and measurement history. The wide operating voltage and -40C to +85C industrial range suit outdoor metering installations.
Được đề xuất
Thermostats and HVAC Controllers
With integrated LCD driver and 12 channels of 12-bit ADC, the PIC18F66J93-I/PT supports thermostats that display temperature, humidity, schedule, and HVAC state on a segmented LCD without an external driver. The 12 MIPS CPU enables real-time PID control loops for HVAC actuators. nanoWatt XLP allows the thermostat to retain battery-backed timekeeping for months. The 64-pin TQFP provides ample I/O for buttons, relays, and sensor interfaces.
Được đề xuất
Home Security Panels
The PIC18F66J93-I/PT fits home security panels needing a keypad + LCD interface, multiple wired sensor zones, and a low-power standby state. Its 12-bit ADC reads multiple analog sensor channels (PIR, smoke, CO), while the integrated LCD displays zone status without an external charge-pump. UART peripherals drive GSM/Wi-Fi modules for alarm reporting. The PIC18F66J93 industrial temperature range suits garage or outdoor-mounted panels.
Được đề xuất
Portable Medical Devices
Portable medical devices such as glucometers, BP monitors, and pulse oximeters benefit from the PIC18F66J93-I/PT's integrated 12-bit ADC (for analog sensor front ends), low-power nanoWatt XLP (extending battery life), and segmented LCD driver (displaying readings without extra ICs). The 64 KB Flash accommodates medical-grade firmware with calibration routines and on-screen user prompts. The wide temperature range supports refrigerated pharmaceutical storage monitoring.
Được đề xuất
Utility Metering (Electric / Water / Gas)
The PIC18F66J93-I/PT is well-suited to electric, water, and gas meters that demand reliable LCD display, accurate analog sensing, and battery life measured in years. nanoWatt XLP enables sleep currents below 100 nA in metering idle mode. The 12-bit ADC and integrated LCD directly handle current-sense front ends and segmented numeric readouts. Industrial temperature range ensures operation in outdoor metering enclosures and meter pits.
Được đề xuất
Industrial Control Panels
Industrial control panels with HMI LCD readouts benefit from the PIC18F66J93-I/PT's combination of segmented LCD, 12-bit ADC, UART/SPI/I2C peripherals, and robust -40C to +85C industrial temperature range. The 12 MIPS CPU executes menu and PID control code, while the integrated peripherals drive RS-485, Modbus, or CAN modules. The TQFP-64 footprint allows compact panel designs with sufficient I/O for buttons, LEDs, and relay drivers.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F66J93-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 | PIC18F66J94-I/PT | PIC18F65J94-I/PT | PIC18F66J90-I/PT | PIC18F66J55-I/PT | PIC18F66J50T-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-64 (PT) 10x10 mm | TQFP-64 (PT) 10x10 mm - same | TQFP-64 (PT) 10x10 mm - same | TQFP-64 (PT) 10x10 mm - same | TQFP-64 (PT) 10x10 mm - same | TQFP-64 (PT) 10x10 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 64-128 KB (variant) | 64 KB | 64 KB | 64 KB | 64 KB |
| RAM | 4 KB | 4-8 KB (variant) | 4 KB | 4 KB | 4 KB | 4 KB |
| CPU Speed | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 40 MHz / 10 MIPS | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS |
| ADC Resolution | 12-bit, 12 channels | 12-bit, 12 channels | 12-bit, 12 channels | 10-bit, 12 channels | 10-bit, 12 channels | 12-bit, 12 channels |
| Integrated LCD Driver | Yes | Yes (more segments) | Yes | Yes | Yes | Yes |
| nanoWatt XLP Low Power | Yes | Yes | Yes | No | Yes | Yes |
Bảo phân biệt quan trọng
- Integrated segmented LCD driver eliminates external charge-pump IC (vsPIC18F46K22-I/PT)
- nanoWatt XLP ultra-low sleep current for battery applications (vsPIC18F66J90-I/PT)
- 12-bit ADC vs 10-bit ADC for higher-precision analog sensing (vsPIC18F66J55-I/PT)
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor within 5 mm of every VDD pin and a 10 uF bulk capacitor near the IC supply. Estimated: total VDD pin count is 4 (digital VDD + analog AVDD), so a 4-cap local-decoupling network plus shared bulk cap is recommended. This suppresses switching noise and ensures ADC reference stability. For battery-powered designs, route the MCU's regulated supply from an LDO with low quiescent current (e.g., MCP1700) to minimize sleep current.
Do not confuse the Industrial (-I) and Extended (-E) temperature suffixes; PIC18F66J93-I/PT is rated -40C to +85C, suitable for consumer/industrial products but NOT automotive. For automotive or outdoor-extreme environments, choose the AEC-Q100-qualified equivalent. Also confirm the bootloader/Firmware ID (DevID) before programming to avoid flashing the wrong family member. MCLR must be pulled high through a resistor for normal operation; tying it directly to VDD disables in-circuit programming.
Route the LCD segment signals to the chosen LCD glass layout carefully - the maximum segment count depends on pin assignment and multiplexing mode (1/2, 1/3, 1/4 bias). Estimated: with all 64 pins assigned, the device supports up to ~192 segments in 1/4 bias mode. Use Microchip's MPLAB X IDE with the PIC18F66J93 Peripheral Library to autogenerate configuration code, reducing firmware cycle time. Place VLCD1/VLCD2 filter caps near the IC and isolate analog AVDD from digital VDD by ferrite bead.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial -I temperature grade (-40C to +85C). AEC-Q100 qualification: not_applicable for this part number - contact Microchip for automotive-grade equivalents.
