PIC18F46Q10T-I/MP - 8-Bit 64MHz 64KB Flash MCU 40-QFN | Microchip
料号： PIC18F46Q10T-I/MP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.96 | $1.96 |
| 10 | $1.85 | $18.50 |
| 100 | $1.62 | $162.00 |
| 500 | $1.42 | $710.00 |
| 1,000 | $1.28 | $1,280.00 |
PIC18F46Q10T-I/MP 概述
What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a small computer-on-a-chip built around an 8-bit data path, integrating a CPU core, non-volatile program memory (Flash), volatile data memory (SRAM), small EEPROM for parameter storage, and a rich set of peripherals on a single die. Within the broader semiconductor taxonomy, an MCU belongs to: microcontroller -> embedded processor -> integrated circuit -> semiconductor. The PIC18F46Q10 is part of Microchip's PIC18 family, which sits above baseline PIC16/PIC10 parts and below 16-bit PIC24 and 32-bit PIC32 families, offering an excellent balance of cost, deterministic real-time performance, and 5 V noise immunity for industrial and consumer control systems.
Key features include a 10-bit ADC with computation (ADC2), a 5-bit DAC, multiple PWM modules, Complementary Waveform Generator (CWG), Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), and SCAN/CRC for functional safety (FuSa) applications. The device supports XLP (eXtreme Low Power) modes for battery-friendly designs and operates across an industrial temperature range of -40 °C to +85 °C. It is also fully functional with 5 V I/O, providing greater noise margin than typical 3.3 V MCUs in harsh electrical environments.
The PIC18F46Q10 utilizes Microchip's enhanced mid-range PIC18 CPU core with a modified Harvard architecture and a hardware multiply unit, achieving deterministic instruction execution while supporting C-optimized compilers (XC8). Integrated intelligent analog peripherals and configurable logic cells (CLCs) enable hardware-based state machines, reducing software overhead and improving real-time response in closed-loop control loops.
Typical applications include IoT sensor nodes, industrial automation, home appliances, motor control, LED lighting controllers, and functional safety subsystems where the AEC-like SCAN/CRC and WWDT simplify IEC 61508 SIL-2 designs. According to Microchip product literature, this family is well suited for a broad range of robust real-time control and sensor applications.
When designing with this part, ensure the exposed pad is soldered to the PCB ground plane for thermal performance. Plan unused I/O pins as outputs to minimize current draw, and use the internal HFINTOSC to reduce BOM cost where crystal accuracy is not required.
This page synthesizes distributor pricing from DigiKey, Mouser, LCSC and Octopart, lists drop-in package alternatives from Microchip's PIC18 family, and adds practical design notes that complement - not duplicate - the manufacturer datasheet.
直接替换替代料： PIC18F46Q10T-I/MP ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC18F46Q10T-I/MP （相同外形与封装尺寸） ——差异在于 ADC, DAC, Package, Program Memory (Flash), Core.
快速对比工具——选择替代料号进行并排对比：
PIC18F46Q10-I/MP
✅ 直接替换✓ 有现货
$1.94 / 个
查看数据手册 →PIC18F45Q10T-I/MP
✅ 直接替换✓ 有现货
$1.88 / 个
查看数据手册 →PIC18F46Q10T-I/ML
✅ 直接替换📋 参考替代料（不在目录中）
PIC18F45Q43T-I/MP
✅ 直接替换✓ 有现货
$1.59 / 个
查看数据手册 →PIC18F46K42T-I/ML
✅ 直接替换✓ 有现货
$2.04 / 个
查看数据手册 →PIC18F46Q10T-I/MP 最大额定值与电气特性
| Core Architecture | PIC18 (8-bit enhanced mid-range) |
| Program Memory (Flash) | 64 KB (64K x 8) |
| SRAM | 3.6 KB |
| EEPROM | 1024 B (256 B per DigiKey listing, 1024 B per Mouser/FindIC - see validation note) |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| ADC | 10-bit ADC with computation (ADC2) |
| DAC | 5-bit DAC |
| PWM Channels | Multiple (peripherals include PWM and CWG) |
| Timers | Hardware Limit Timer (HLT), standard PIC18 timers |
| Watchdog | Windowed Watchdog Timer (WWDT) |
| Functional Safety Features | SCAN/CRC, WWDT, FuSa-capable |
| Low Power | XLP (eXtreme Low Power) technology |
| 封装 | 40-QFN (5x5 mm) with exposed thermal pad |
| 工作温度 | -40 °C to +85 °C (industrial) |
| 安装类型 | Surface Mount (Tape & Reel) |
| RoHS 状态 | Compliant |
| Lead-Free | Yes (Pb-free) |
PIC18F46Q10T-I/MP 引脚配置
| 引脚 1 | RA2 — Port A bit 2 (analog/digital I/O) |
| 引脚 2 | RA3 — Port A bit 3 (analog/digital I/O) |
| 引脚 3 | RA4 — Port A bit 4 (analog/digital I/O) |
| 引脚 4 | RA5 — Port A bit 5 (analog/digital I/O) |
| 引脚 5 | RA6 — Port A bit 6 (analog/digital I/O) |
| 引脚 6 | RA7 — Port A bit 7 (analog/digital I/O) |
| 引脚 7 | VSS — Ground reference |
| 引脚 8 | VDD — Positive supply voltage |
| 引脚 9 | OSC1 — Crystal oscillator input |
| 引脚 10 | OSC2 — Crystal oscillator output |
| 引脚 11 | RC0 — Port C bit 0 (PWM/analog/digital I/O) |
| 引脚 12 | RC1 — Port C bit 1 (PWM/analog/digital I/O) |
| 引脚 13 | RC2 — Port C bit 2 (PWM/analog/digital I/O) |
| 引脚 14 | RC3 — Port C bit 3 (PWM/analog/digital I/O) |
| 引脚 15 | RC4 — Port C bit 4 (PWM/digital I/O) |
| 引脚 16 | RC5 — Port C bit 5 (PWM/digital I/O) |
| 引脚 17 | RC6 — Port C bit 6 (TX/CK digital I/O) |
| 引脚 18 | RC7 — Port C bit 7 (RX/DT digital I/O) |
| 引脚 19 | VSS — Ground reference |
| 引脚 20 | VDD — Positive supply voltage |
| 引脚 21 | RB0 — Port B bit 0 (interrupt/digital I/O) |
| 引脚 22 | RB1 — Port B bit 1 (digital I/O) |
| 引脚 23 | RB2 — Port B bit 2 (digital I/O) |
| 引脚 24 | RB3 — Port B bit 3 (digital I/O) |
| 引脚 25 | RB4 — Port B bit 4 (digital I/O) |
| 引脚 26 | RB5 — Port B bit 5 (digital I/O) |
| 引脚 27 | RB6 — Port B bit 6 (PGC ICSP clock) |
| 引脚 28 | RB7 — Port B bit 7 (PGD ICSP data) |
| 引脚 29 | MCLR — Master clear reset (active-low) |
| 引脚 30 | VSS — Ground reference |
| 引脚 31 | RD0 — Port D bit 0 (digital I/O) |
| 引脚 32 | RD1 — Port D bit 1 (digital I/O) |
| 引脚 33 | RD2 — Port D bit 2 (digital I/O) |
| 引脚 34 | RD3 — Port D bit 3 (digital I/O) |
| 引脚 35 | RD4 — Port D bit 4 (digital I/O) |
| 引脚 36 | RD5 — Port D bit 5 (PWM/digital I/O) |
| 引脚 37 | RD6 — Port D bit 6 (PWM/digital I/O) |
| 引脚 38 | RD7 — Port D bit 7 (PWM/digital I/O) |
| 引脚 39 | RE0 — Port E bit 0 (digital I/O) |
| 引脚 40 | RE1 — Port E bit 1 (digital I/O) |
典型应用
PIC18F46Q10T-I/MP 适用于 7 应用s: Industrial Sensor Nodes, Home Appliance Control, IoT Edge Sensor Hubs, LED Lighting Controllers, Functional Safety Subsystems, Motor Control (Brushed DC and Small BLDC), Automotive Body Electronics (Non-Safety).
Industrial Sensor Nodes
The PIC18F46Q10T-I/MP fits industrial sensor nodes through its 64 KB Flash and 3.6 KB SRAM, which accommodate sensor calibration tables, MODBUS/CAN stack libraries, and on-board diagnostics while leaving headroom for future feature updates. Its 5 V I/O tolerance with 1.8-5.5 V supply range gives 5 V noise immunity on 24 V industrial buses through resistive dividers. The SCAN/CRC and WWDT simplify IEC 61508 SIL-2 functional-safety compliance for sensor transmitters in process plants. Designers typically pair it with an RS-485 transceiver (e.g. MAX3485) for MODBUS RTU on 4-20 mA loops, where its 10-bit ADC2 with computation handles 4-20 mA current measurement directly. According to Microchip's family datasheet, this combination is well-suited for robust real-time sensor monitoring at remote industrial sites.
推荐
Home Appliance Control
The PIC18F46Q10T-I/MP is a strong fit for home appliance controllers such as washing machines, dishwashers, and induction cooktops due to its 64 MHz / 16 MIPS throughput, which handles brushed and BLDC motor commutation in software or via the integrated CWG and PWM peripherals. The 5 V supply and 5 V-tolerant I/O pins tolerate the inductive kickback common in relay-driven load circuits without external protection. The WWDT and CRC engine provide the fail-safe behavior required by IEC 60730 Class B for household appliance safety. A typical reference design uses the CWG + HLT for zero-cross triac control of AC loads, while the ADC2 monitors NTC temperature sensors. According to Microchip's application notes, the 5 V noise margin is a key differentiator over 3.3 V MCUs in appliance motor environments.
推荐
IoT Edge Sensor Hubs
The PIC18F46Q10T-I/MP serves as an IoT edge sensor hub with XLP (eXtreme Low Power) sleep currents that extend battery life in remote sensor installations running on 2xAA or coin-cell batteries. Its 10-bit ADC2 with computation performs hardware-averaged conversions on multiple analog sensor channels (temperature, humidity, light) while the CPU remains in sleep, drawing only a few microamps. The Configurable Logic Cells (CLCs) can wake the CPU on pre-defined sensor events without software polling, reducing average power consumption by 50-70% in periodic-sampling applications. For wireless uplink, designers typically pair it with an SPI-driven sub-GHz transceiver (e.g. MRF89XA) or BLE module. The 64 KB Flash accommodates lightweight TLS or LoRaWAN stacks for edge-to-cloud connectivity.
推荐
LED Lighting Controllers
The PIC18F46Q10T-I/MP drives LED lighting controllers with its integrated PWM and Complementary Waveform Generator (CWG), which generate the high-resolution PWM channels required for dimmable color-mixing RGBW fixtures without external driver ICs. The 10-bit ADC2 reads ambient light sensors and 0-10 V analog dimming inputs commonly used in commercial lighting control systems. The 5 V tolerance simplifies interfacing with industrial 0-10 V dimmers and DALI bridge ICs. Designers use the SCAN/CRC and WWDT for safety monitoring in emergency lighting drivers that must comply with UL 924. A typical design replaces multiple discrete timer ICs with one PIC18F46Q10, reducing BOM cost and PCB area in 0-10 V dimmable LED drivers.
推荐
Functional Safety Subsystems
The PIC18F46Q10T-I/MP targets functional safety subsystems with built-in SCAN/CRC and Windowed Watchdog Timer (WWDT), enabling IEC 61508 SIL-2 and IEC 60730 Class B compliance for safety-critical embedded controls. The hardware CRC engine computes periodic memory integrity checks without software overhead, while the WWDT forces a system reset if the CPU fails to service the watchdog within the configured window. This combination reduces firmware burden for safety certification and is well documented in Microchip's functional safety user guides. Typical use cases include emergency stop controllers, gas detector firmware, and medical device front panels. The 5 V operation and 64 KB Flash support both real-time control loops and safety state-machine firmware in a single MCU.
推荐
Motor Control (Brushed DC and Small BLDC)
The PIC18F46Q10T-I/MP controls brushed DC and small BLDC motors in applications like small pumps, fans, and e-bike controllers thanks to its CWG and PWM peripherals that generate complementary 3-phase gate drive waveforms up to tens of kHz switching frequency. The 64 MIPS performance is sufficient for sensorless BEMF zero-cross detection routines in firmware, eliminating the need for Hall-effect sensors in cost-optimized designs. The 10-bit ADC2 samples phase currents and back-EMF through on-chip op-amp peripherals, while the Hardware Limit Timer (HLT) provides hardware overcurrent protection independent of CPU latency. A typical reference design uses the PIC18F46Q10 with three IRFR540N MOSFETs for 24 V/5 A brushed DC motor control in a 5x5 cm PCB.
推荐
Automotive Body Electronics (Non-Safety)
Although not AEC-Q100 qualified, the PIC18F46Q10T-I/MP is widely used in non-safety automotive body electronics such as interior lighting controllers, seat heaters, and HVAC blend actuators where 5 V noise immunity and -40 °C to +85 °C operation are required. The wide operating voltage range handles 12 V battery cranking transients through external TVS protection, while the ADC2 multiplexes NTC thermistors for multi-zone temperature sensing. Designers use the EUSART LIN-compatible hardware peripheral for LIN bus communication with body control modules. According to Microchip literature, the PIC18-Q10 family is 'well suited for a broad range of applications' including automotive body controllers where AEC-Q100 is not mandatory.
推荐
推荐产品汇总
工程参考数据： PIC18F46Q10T-I/MP ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC18F46Q10-I/MP | PIC18F45Q10T-I/MP | PIC18F46Q10T-I/ML | PIC18F45Q43T-I/MP | PIC18F46K42T-I/ML |
|---|---|---|---|---|---|---|
| Package | 40-QFN (5x5 mm) | 40-QFN (5x5 mm) - same | 40-QFN (5x5 mm) - same | 44-QFN (ML) - different | 40-QFN (5x5 mm) - same | 44-QFN (ML) - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 64 KB | 32 KB | 64 KB | 32 KB | 64 KB |
| SRAM | 3.6 KB | 3.6 KB | 2 KB | 3.6 KB | 2 KB | 4 KB |
| EEPROM | 1024 B | 1024 B | 1024 B | 1024 B | 256 B | 1024 B |
| Maximum Clock | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| ADC | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 |
| Functional Safety | SCAN/CRC + WWDT | SCAN/CRC + WWDT | SCAN/CRC + WWDT | SCAN/CRC + WWDT | WWDT only | WWDT only |
| Operating 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 |
关键差异点
- On-chip SCAN/CRC engine plus WWDT for IEC 61508 SIL-2 functional safety （对比 PIC18F46K42T-I/ML)
- 5 V I/O tolerance with 1.8-5.5 V supply for industrial noise immunity （对比 PIC18F45Q43T-I/MP)
- 40-QFN (5x5 mm) with exposed pad for compact SMT designs （对比 PIC18F46Q10T-I/ML)
- Tape & Reel packaging for SMT production lines （对比 PIC18F46Q10-I/MP)
设计说明
The 40-QFN (5x5 mm) bottom exposed pad MUST be soldered to a copper ground plane on the top layer with a 3x3 to 4x4 via array (0.3 mm via drill, 0.6 mm pad) to the internal ground plane. Without proper thermal pad soldering, the die will exceed its junction temperature at high ambient temperatures and CPU loading. Estimated: at 64 MHz with full peripheral activity, typical IDD is around 15 mA; power dissipation is therefore approximately 0.075 W at 5 V - well within the 40-QFN's thermal envelope when the EPAD is correctly soldered.
Place a 100 nF decoupling capacitor within 3 mm of each VDD pin (pin 8 and pin 20), plus a bulk 10 µF tantalum or ceramic capacitor at the package supply entry. According to Microchip's hardware design checklist, PIC18 devices require the MCLR pin to have a 10 kΩ pull-up to VDD and a 100 nF cap to ground for reliable in-circuit serial programming (ICSP). Avoid long VDD traces that exceed 25 mm without intermediate decoupling.
Do not leave the MCLR pin floating - the PIC18 will intermittently reset if MCLR noise triggers the internal filter. Configure unused I/O pins as outputs (not inputs) to minimize current draw from floating input leakage. When migrating code from PIC18F46K22 to PIC18F46Q10, note that the ADC registers, PPS (Peripheral Pin Select) configuration, and CLC peripheral setup are different - direct HEX file compatibility is not guaranteed. Use the XC8 compiler's migration headers or the MCC code configurator to regenerate peripheral initialization code.
Route the ICSP signals (PGC on RB6, PGD on RB7, MCLR) away from high-frequency switching nodes such as PWM outputs or crystal traces. Keep the OSC1/OSC2 traces short and surrounded by a ground guard ring if using an external crystal. For 64 MHz operation with HFINTOSC, the internal oscillator is factory-trimmed to ±1% typical across -40 °C to +85 °C, eliminating the need for an external crystal in many designs. PPS assignments on RP pins must be unlocked by writing the PPSLOCK register sequence before reconfiguration.
合规信息
RoHS and Pb-free compliant per LCSC and Mouser listings. Not AEC-Q100 qualified - not suitable for automotive safety-critical applications. Industrial temperature grade -40 °C to +85 °C.
