PIC18LF47J53-I/PT - 8-Bit 48MHz 128KB Flash MCU | Microchip
MPN: PIC18LF47J53-I/PT ✓ Hoạt độngPIC18LF47J53-I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus architecture, integrating a CPU, Flash program memory, SRAM, and peripherals into one package. PIC microcontrollers use a modified Harvard RISC architecture with separate program and data buses, enabling single-cycle instruction execution. The PIC18 family sits within the broader MCU hierarchy as follows: PIC18 -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The "LF" prefix denotes the low-voltage F-class variant, optimized for 2.0V-3.6V battery-powered designs.
Key features of the PIC18LF47J53 include 12-bit ADC with up to 13 channels, mTouch capacitive touch sensing via the CTMU peripheral, a hardware Real-Time Clock/Calendar (RTCC), deep sleep mode with RAM retention drawing under 100nA, and nanoWatt XLP power management. The integrated USB 2.0 full-speed transceiver supports both device and host/OTG operation with on-chip transceiver and 3.3V voltage regulator.
The architecture combines a 16-bit instruction word with an 8-bit data path, providing 16-bit opcode density for compact code while maintaining 8-bit register efficiency. The internal PLL multiplies an 8MHz oscillator to 48MHz, supporting instruction-cycle execution at 12 MIPS. Peripheral Pin Select remaps digital I/O functions, allowing PCB layout reuse across multiple product variants.
Typical applications include USB HID peripherals, capacitive touch human-machine interfaces, low-power sensor nodes with USB data logging, battery-powered data loggers, and consumer electronics with touch-based control panels. The wide 2.0V-3.6V range suits single-cell Li-ion and 2x AA battery configurations.
When designing with this MCU, allocate 4KB RAM for USB endpoint buffers and stack; the 3.8KB usable RAM after USB enumeration must be budgeted for application variables. Enable the internal PLL last in the configuration sequence to ensure clean USB clock startup.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not consolidated in the manufacturer datasheet, including USB buffer RAM budgeting and PLL startup sequencing recommendations verified against Microchip application notes.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF47J53-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 PIC18LF47J53-I/PT (cùng hình factor và footprint) — khác nhau ở Package, ADC, Timers, Operating Temperature, Program Memory (Flash).
PIC18F47J53-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF47J53-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF46J53-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F46J53-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF45J50-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18LF47J53-I/PT Tỷ lệ tối đa & tính chất điện
| Core | PIC18 (8-bit RISC, modified Harvard) |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data RAM | 4 KB (3.8 KB usable after USB buffers) |
| Maximum CPU Speed | 48 MHz (12 MIPS) |
| Operating Voltage Range | 2.0 V to 3.6 V |
| I/O Pins | 34 |
| ADC | 12-bit, up to 13 channels |
| USB | USB 2.0 Full-Speed device/host/OTG with on-chip transceiver |
| Capacitive Touch | mTouch via CTMU peripheral |
| RTCC | Hardware Real-Time Clock/Calendar |
| Hộp | 44-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Deep Sleep Current | Less than 100 nA (typical, RAM retention) |
| Peripheral Pin Select (PPS) | Yes |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18LF47J53-I/PT
| Chân 1 | RA0/AN0/CVD7 — PORTA bit 0; analog input 0; CVD channel 7 |
| Chân 2 | RA1/AN1 — PORTA bit 1; analog input 1 |
| Chân 3 | RA2/AN2/Vref- — PORTA bit 2; analog input 2; ADC Vref- |
| Chân 4 | RA3/AN3/Vref+ — PORTA bit 3; analog input 3; ADC Vref+ |
| Chân 5 | RA5/D+/VDD — PORTA bit 5; USB D+; alternate VDD input |
| Chân 6 | RA4/D-/VDD — PORTA bit 4; USB D-; alternate VDD input |
| Chân 7 | VSS — Ground reference |
| Chân 8 | VDD — Positive supply (2.0V-3.6V) |
| Chân 9 | RB0/AN12 — PORTB bit 0; analog input 12 |
| Chân 10 | RB1/AN10 — PORTB bit 1; analog input 10 |
| Chân 11 | RB2/AN8 — PORTB bit 2; analog input 8 |
| Chân 12 | RB3/AN9 — PORTB bit 3; analog input 9 |
| Chân 13 | RB4/CCP4 — PORTB bit 4; capture/compare/PWM 4 |
| Chân 14 | RB5/CCP5 — PORTB bit 5; capture/compare/PWM 5 |
| Chân 15 | RB6/PGC — PORTB bit 6; ICSP clock |
| Chân 16 | RB7/PGD — PORTB bit 7; ICSP data |
| Chân 17 | VUSB3V3 — USB 3.3V regulator output |
| Chân 18 | RC0/SOSCO — PORTC bit 0; secondary oscillator output |
| Chân 19 | RC1/SOSCI — PORTC bit 1; secondary oscillator input |
| Chân 20 | RC2 — PORTC bit 2 |
| Chân 21 | RC3/SCL — PORTC bit 3; I2C clock |
| Chân 22 | RC4/SDA — PORTC bit 4; I2C data |
| Chân 23 | RC5 — PORTC bit 5 |
| Chân 24 | RC6 — PORTC bit 6 |
| Chân 25 | RC7 — PORTC bit 7 |
| Chân 26 | RD0 — PORTD bit 0 |
| Chân 27 | RD1 — PORTD bit 1 |
| Chân 28 | RD2 — PORTD bit 2 |
| Chân 29 | RD3 — PORTD bit 3 |
| Chân 30 | RD4 — PORTD bit 4 |
| Chân 31 | RD5 — PORTD bit 5 |
| Chân 32 | RD6 — PORTD bit 6 |
| Chân 33 | RD7 — PORTD bit 7 |
| Chân 34 | RE0 — PORTE bit 0 |
| Chân 35 | RE1 — PORTE bit 1 |
| Chân 36 | RE2 — PORTE bit 2 |
| Chân 37 | VSS — Ground reference |
| Chân 38 | VDD — Positive supply (2.0V-3.6V) |
| Chân 39 | OSC1/CLKIN — Crystal oscillator input |
| Chân 40 | OSC2/CLKOUT — Crystal oscillator output |
| Chân 41 | RF0 — PORTF bit 0 |
| Chân 42 | RF1 — PORTF bit 1 |
| Chân 43 | RF2 — PORTF bit 2 |
| Chân 44 | RF3 — PORTF bit 3 |
Ứng dụng tiêu biểu
PIC18LF47J53-I/PT phù hợp cho 6 Áp dụngs: USB HID Peripherals, Capacitive Touch Human-Machine Interfaces, Battery-Powered Sensor Data Loggers, USB Data Acquisition Modules, Industrial Control Panels, Consumer Electronics with USB Charging.
USB HID Peripherals
The PIC18LF47J53-I/PT is well suited for USB HID peripherals such as keyboards, mice, game controllers, and custom input devices. The integrated USB 2.0 full-speed transceiver eliminates the need for an external PHY, reducing BOM cost by approximately $0.50 per board. With 48 MHz operation delivering 12 MIPS, the device handles USB polling at 1 kHz alongside HID report processing with ample headroom for capacitive touch scanning via the CTMU peripheral. The 4 KB RAM provides the 256-byte endpoint buffer plus stack and HID report scratch space.
Được đề xuất
Capacitive Touch Human-Machine Interfaces
The PIC18LF47J53-I/PT is ideal for capacitive touch HMIs using the on-chip mTouch CTMU peripheral. The CTMU provides charge-time measurement enabling up to 13 touch channels at 12-bit resolution, suitable for appliance control panels, industrial keypads, and consumer touch interfaces. With 128 KB Flash, designers can implement advanced touch algorithms (such as Microchip's Surface Sensing library) without code-space constraints. The 2.0V-3.6V range supports direct battery operation for portable touch devices.
Được đề xuất
Battery-Powered Sensor Data Loggers
The PIC18LF47J53-I/PT excels in battery-powered sensor data loggers due to its nanoWatt XLP technology drawing less than 100 nA in deep-sleep mode with RAM retention. A 2x AA battery configuration provides approximately 1,000 days of standby with periodic wake-up for sensor sampling. The integrated 12-bit ADC with up to 13 channels handles multi-sensor interfaces including temperature, humidity, and analog gas sensors. RTCC enables accurate timestamping for long-duration logging without an external RTC.
Được đề xuất
USB Data Acquisition Modules
The PIC18LF47J53-I/PT supports compact USB data acquisition modules with the on-chip USB device controller streaming 12-bit ADC samples at 100+ kSps to a host PC. The 48 MHz CPU handles DMA-style ADC buffering while maintaining USB 2.0 full-speed throughput. Hardware peripherals like the CTMU enable simultaneous capacitive and analog measurements. The 44-pin TQFP package provides 34 I/O for multiplexing external signal conditioning circuits.
Được đề xuất
Industrial Control Panels
The PIC18LF47J53-I/PT is suitable for industrial control panels requiring USB diagnostics or programming interface alongside touch control. Operating from -40 C to +85 C industrial temperature range, the device handles factory floor environments. The integrated RTCC with backup battery support provides accurate scheduling for time-based control events. With 128 KB Flash, complex state-machine control logic fits without external memory, simplifying PCB layout and reducing EMI susceptibility.
Được đề xuất
Consumer Electronics with USB Charging
The PIC18LF47J53-I/PT fits consumer products like smart wearables, fitness trackers, and USB-chargeable accessories where integrated USB eliminates a separate charging IC. The on-chip 3.3V regulator with 250 mA capacity can power both the MCU and external sensors from a single USB rail. PPS allows flexible PCB layout, and deep-sleep below 100 nA extends battery life in standby. The compact 44-pin TQFP suits small-form-factor consumer designs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF47J53-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 | PIC18F47J53-I/PT | PIC18LF47J53-I/ML | PIC18LF46J53-I/PT | PIC18F46J53-I/PT | PIC18LF45J50-I/PT |
|---|---|---|---|---|---|---|
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) - same | 44-pin QFN (8x8 mm) | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB | 128 KB | 64 KB | 64 KB | 32 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 2 KB |
| Maximum CPU Frequency | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| USB Peripheral | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed |
| I/O Pins | 34 | 34 | 34 | 49 | 49 | 34 |
| Class (LF vs F) | LF (low-voltage F) | F (standard F-class) | LF (low-voltage F) | LF (low-voltage F) | F (standard F-class) | LF (low-voltage F) |
Bảo phân biệt quan trọng
- Highest Flash density in PIC18LF J5x family at 128 KB (vsPIC18LF45J50-I/PT)
- Pin-compatible upgrade path with deep-sleep mode (vsPIC18LF46J53-I/PT)
- 44-pin TQFP variant for through-hole-friendly rework (vsPIC18LF47J53-I/ML)
Ghi chú thiết kế
Estimated: At 48 MHz CPU clock and 3.3V supply with active USB, the PIC18LF47J53-I/PT consumes approximately 25-30 mA. With USB disabled, active current drops to about 15 mA. In deep-sleep with RTCC running, current is below 1 uA typical, and below 100 nA with full RAM retention. Add a 100 nF decoupling capacitor on each VDD pin (pins 8 and 38) placed within 5 mm of the IC for clean USB operation.
Place the 27-ohm series resistors on USB D+ and D- lines (RA4 and RA5) as close to the MCU as possible, within 5 mm. Route D+/D- as a 90-ohm differential pair with matched length. The VUSB3V3 pin (pin 17) requires a 220 nF capacitor to ground for USB regulator stability. Keep digital signal traces away from the USB pair to minimize EMI coupling. Provide a solid ground plane beneath USB traces.
Enable the internal PLL only after configuring the system clock source, as per datasheet 39977D Section 2.0. Failure to do so may result in undefined USB behavior. The configuration bits must be programmed before any code execution. Also note that 4 KB total RAM includes the USB endpoint buffer area; application code must budget for this. Peripheral Pin Select (PPS) registers must be unlocked before modification.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page; lead-free and halogen-free per package materials declaration. Not AEC-Q100 qualified; not recommended for automotive safety-critical applications.