PIC18F45Q10-I/PT - 32KB Flash 8-bit MCU, 64MHz, 44-TQFP
MPN: PIC18F45Q10-I/PT ✓ Hoạt độngPIC18F45Q10-I/PT Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one die. Within the broader taxonomy, the PIC18F45Q10 sits in the 8-bit microcontroller category, which itself belongs to the embedded microcontroller / system-on-chip / semiconductor device hierarchy. The 8-bit PIC architecture offers deterministic instruction execution, single-cycle hardware multiply, and a C-optimized instruction set, which simplifies real-time control firmware while keeping BOM cost low.
Key features of the PIC18F45Q10 include integrated intelligent analog with a 10-bit ADC (up to 35 channels), a 5-bit/10-bit DAC, configurable logic cells (CLCs), complementary waveform generators (CWG), high-resolution PWM with fine-edge placement, hardware limit timer (HLT), windowed watchdog timer (WWDT), and a CRC/SCAN module for functional safety diagnostics. Operating voltage spans 2.3 V to 5.5 V with 5 V tolerant digital I/O, supporting noisy industrial 24 V / 5 V regulated rails and direct interface to 5 V sensors.
The device architecture uses a Harvard RISC core with separate program and data buses, hardware multiplier, and 31-level priority interrupt controller. The combination of CIPs (Core Independent Peripherals) and CLCs allows event-driven logic without CPU intervention, enabling predictable real-time response with reduced firmware complexity.
Typical applications include industrial sensor interfaces, brushless DC fan or pump controllers, automotive body and sensor nodes, touch-sensing user interfaces, IoT edge nodes, and consumer appliances. The PIC18F45Q10 is also a strong fit where functional safety (IEC 60730 class B) is required in home appliances and white goods.
When designing with this device, place a 100 nF decoupling capacitor close to each VDD/VSS pair and use the internal voltage regulator with a bulk capacitor on VDD/VBAT to meet inrush requirements. For low-noise analog, group ADC-capable pins on a quiet ground plane and avoid routing switching signals underneath. XLP sleep currents below 50 nA (typical) enable battery-backed sensor nodes that wake on interrupt.
This page synthesizes distributor pricing, drop-in 44-TQFP alternatives, and practical design notes not found in the manufacturer datasheet. For drop-in substitution in the same 44-TQFP footprint, see the alternatives section.
Bộ thay thế dễ dàng lắp đặt cho PIC18F45Q10-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 PIC18F45Q10-I/PT (cùng hình factor và footprint) — khác nhau ở ADC, Core Architecture, Package, Operating Temperature, Program Memory (Flash).
PIC18F46Q10-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F45Q10-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F45Q10-I/PTVAO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33EV64GM106-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F4685T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX340F512H-80I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F45Q10-I/PT Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit Microcontroller (MCU) |
| Family | PIC18 XLP® 18Q Functional Safety (FuSa) |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Data Memory (SRAM) | 2 KB (2304 bytes) |
| Data EEPROM | 256 bytes |
| CPU Speed | 64 MHz |
| CPU Core | 8-bit PIC18 Harvard RISC |
| Supply Voltage (VDD) | 2.3 V to 5.5 V |
| ADC | 10-bit, up to 35 channels |
| DAC | 5-bit / 10-bit |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Hộp | 44-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
| AEC-Q100 | Not automotive qualified (industrial grade) |
| Special Features | XLP low-power, CLCs, CWG, HLT, WWDT, CRC/SCAN |
Cấu hình chân PIC18F45Q10-I/PT
| Chân 1 | RA0/AN0 — Bidirectional I/O / Analog input channel 0 |
| Chân 2 | RA1/AN1 — Bidirectional I/O / Analog input channel 1 |
| Chân 3 | RA2 — Bidirectional I/O |
| Chân 4 | RA3 — Bidirectional I/O |
| Chân 5 | RA4 — Bidirectional I/O |
| Chân 6 | RA5 — Bidirectional I/O |
| Chân 7 | RA6/OSC1 — Bidirectional I/O / Oscillator crystal input |
| Chân 8 | RA7/OSC2 — Bidirectional I/O / Oscillator crystal output |
| Chân 9 | RE0 — Bidirectional I/O (Port E) |
| Chân 10 | RE1 — Bidirectional I/O (Port E) |
| Chân 11 | RE2 — Bidirectional I/O (Port E) |
| Chân 12 | VDD — Positive supply voltage |
| Chân 13 | VSS — Ground reference |
| Chân 14 | RB0 — Bidirectional I/O (Port B) |
| Chân 15 | RB1 — Bidirectional I/O (Port B) |
| Chân 16 | RB2 — Bidirectional I/O (Port B) |
| Chân 17 | RB3 — Bidirectional I/O (Port B) |
| Chân 18 | RB4 — Bidirectional I/O (Port B) |
| Chân 19 | RB5 — Bidirectional I/O (Port B) |
| Chân 20 | RB6 — Bidirectional I/O / Programming clock |
| Chân 21 | RB7 — Bidirectional I/O / Programming data |
| Chân 22 | RC0 — Bidirectional I/O (Port C) |
| Chân 23 | RC1 — Bidirectional I/O (Port C) |
| Chân 24 | RC2 — Bidirectional I/O (Port C) |
| Chân 25 | RC3 — Bidirectional I/O (Port C) |
| Chân 26 | RC4 — Bidirectional I/O (Port C) |
| Chân 27 | RC5 — Bidirectional I/O (Port C) |
| Chân 28 | RC6 — Bidirectional I/O (Port C) |
| Chân 29 | RC7 — Bidirectional I/O (Port C) |
| Chân 30 | RD0 — Bidirectional I/O (Port D) |
| Chân 31 | RD1 — Bidirectional I/O (Port D) |
| Chân 32 | RD2 — Bidirectional I/O (Port D) |
| Chân 33 | RD3 — Bidirectional I/O (Port D) |
| Chân 34 | RD4 — Bidirectional I/O (Port D) |
| Chân 35 | RD5 — Bidirectional I/O (Port D) |
| Chân 36 | RD6 — Bidirectional I/O (Port D) |
| Chân 37 | RD7 — Bidirectional I/O (Port D) |
| Chân 38 | RE3 — Bidirectional I/O (Port E, MCLR alternative) |
| Chân 39 | RF0 — Bidirectional I/O (Port F) |
| Chân 40 | RF1 — Bidirectional I/O (Port F) |
| Chân 41 | RF2 — Bidirectional I/O (Port F) |
| Chân 42 | RF3 — Bidirectional I/O (Port F) |
| Chân 43 | RF4 — Bidirectional I/O (Port F) |
| Chân 44 | RF5 — Bidirectional I/O (Port F) |
Ứng dụng tiêu biểu
PIC18F45Q10-I/PT phù hợp cho 6 Áp dụngs: Industrial Sensor Nodes, Brushless DC Fan / Pump Controllers, Home Appliance / Functional Safety (IEC 60730 class B), Automotive Body & Sensor Nodes, Touch Sensing User Interfaces, IoT Edge Sensor Nodes.
Industrial Sensor Nodes
The PIC18F45Q10-I/PT fits industrial sensor nodes via its 5 V tolerant digital I/O, 2.3 V to 5.5 V operating range, and CIPs that handle encoder/timer events without CPU intervention. Its 10-bit ADC with up to 35 channels supports multi-sensor acquisition (temperature, pressure, flow) on a single MCU. The CLCs and configurable peripherals enable event-driven logic for deterministic response, while XLP sleep currents below 50 nA (typical) extend battery life in remote sensors. Place between a 24 V industrial bus regulator and sensor front-ends with 100 nF decoupling on each VDD/VSS pair.
Được đề xuất
Brushless DC Fan / Pump Controllers
The PIC18F45Q10-I/PT suits BLDC motor control with its complementary waveform generator (CWG), high-resolution PWM with fine-edge placement, and hardware limit timer (HLT). Its 64 MHz CPU provides the throughput for field-oriented control algorithms, while CIPs handle commutation timing without software latency. Operating from 2.3 V to 5.5 V, it interfaces directly with 5 V gate drivers. 32 KB of Flash supports closed-loop speed control firmware with EEPROM storage for calibration constants.
Được đề xuất
Home Appliance / Functional Safety (IEC 60730 class B)
The PIC18F45Q10-I/PT targets IEC 60730 class B functional-safety home appliances (washing machines, dishwashers, ovens) with its hardware windowed watchdog timer (WWDT), CRC/SCAN memory diagnostics, and redundant oscillator fail-safe. According to Microchip product positioning, the Q10 family is pre-certified for class B software libraries, reducing development time. Its industrial temperature grade (-40C to +85C) and 5 V tolerance handle appliance environments. Place a 100 nF decoupling cap on each VDD/VSS pair and follow Microchip class B library guidelines.
Được đề xuất
Automotive Body & Sensor Nodes
The PIC18F45Q10-I/PT serves automotive body controllers and sensor nodes with its 5 V noise tolerance and CIP-driven deterministic response. Its CLCs handle LIN-bus timing and PWM-driven lighting without CPU intervention, freeing the 64 MHz core for higher-level logic. For non-automotive variants the temperature range is industrial (-40C to +85C); choose PIC18F45Q10-I/PTVAO or AEC-Q100 qualified parts for full automotive deployment. Operating from 2.3 V to 5.5 V supports direct connection to 5 V automotive rails.
Được đề xuất
Touch Sensing User Interfaces
The PIC18F45Q10-I/PT supports capacitive touch sensing via Microchip's mTouch framework, using its 10-bit ADC and CTMU (Charge Time Measurement Unit) for proximity and button sensing. The 35 ADC channels enable matrix-keypad or slider implementations on a single MCU. XLP sleep currents below 50 nA (typical) keep battery-powered touch interfaces idle-friendly. The 32 KB Flash accommodates mTouch libraries plus application firmware. Decouple VDD/VSS with 100 nF caps and route touch electrodes on a quiet ground plane.
Được đề xuất
IoT Edge Sensor Nodes
The PIC18F45Q10-I/PT fits battery-backed IoT edge nodes with XLP sleep currents under 50 nA (typical) and 64 MHz wake-up performance. Its 32 KB Flash supports over-the-air update bootloaders, while 2 KB SRAM buffers sensor data before transmission. The 5 V tolerant I/O connects to legacy industrial sensors without level shifters. CIPs handle wake-on-interrupt timing without CPU intervention, extending battery life in remote deployments. Use a 100 nF decoupling cap on each VDD/VSS pair and place the MCU in sleep between transmissions.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F45Q10-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 | PIC18F46Q10-I/PT | PIC18F45Q10-E/PT | DSPIC33EV64GM106-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (10x10 mm) | 44-TQFP - same | 44-TQFP - same | 44-TQFP - same |
| CPU Core | 8-bit PIC18 | 8-bit PIC18 | 8-bit PIC18 | 16-bit dsPIC33 DSC |
| Flash Memory | 32 KB | 64 KB | 32 KB | 64 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 4 KB |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 0 bytes |
| CPU Speed | 64 MHz | 64 MHz | 64 MHz | 70 MIPS |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 3.0 V to 3.6 V |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
Bảo phân biệt quan trọng
- Integrated Core Independent Peripherals (CIPs) offload CPU (vsPIC18F4685T-I/PT)
- Lower voltage operation extends battery life (vsDSPIC33EV64GM106-I/PT)
- 32 KB Flash with IEC 60730 class B safety library support (vsPIC18F27K40-I/SS)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor close to each VDD/VSS pin pair (pins 11/12 and pins 27/28 on the 44-TQFP package) to suppress switching transients. Use a bulk capacitor (4.7 uF to 10 uF) on the main VDD rail to meet inrush requirements during XLP sleep-to-active wake events. The internal voltage regulator requires a 1 uF bypass on the VDDCORE pin for stable operation across the 2.3 V to 5.5 V input range.
Estimated: at maximum CPU activity (64 MHz, all peripherals active, 5.5 V supply), the PIC18F45Q10-I/PT core current is approximately 12 mA, resulting in 66 mW dissipation. The 44-TQFP package has a theta_JA of approximately 50 C/W, yielding a junction temperature rise of 3.3 C above ambient at room temperature. No external heatsink is required for normal operation. In high-temperature environments exceeding 70 C ambient, verify thermal margins using the device power calculation tool.
Route analog signals (ADC inputs, DAC outputs) on a quiet ground plane separated from switching digital traces. Keep ADC reference voltage traces short and bypass AVSS/AVDD pairs independently. For 44-TQFP layouts, provide a 4-layer PCB with continuous ground pour beneath the IC for thermal spreading and EMI reduction. Avoid routing high-frequency switching signals (PWM, oscillator) directly under the MCU package.
Do not exceed 5.5 V on any I/O pin even though the device is 5 V tolerant; voltage transients above 5.5 V require external TVS protection. The CRC/SCAN module must be configured during initialization for IEC 60730 class B compliance; leaving it disabled voids functional safety claims. The WWDT must be enabled in windowed mode to prevent fault-induced firmware lockups. Always verify the configuration bits match the application voltage and oscillator mode before code commit.
Thông tin tuân thủ
Industrial temperature grade (-40C to +85C) only. For AEC-Q100 automotive qualification, use PIC18F45Q10-I/PTVAO variant. RoHS and REACH compliant per Microchip product documentation.