PIC18F45Q10T-I/PT - 8-bit 64MHz MCU, 32KB Flash, 44-TQFP | Microchip
料号： PIC18F45Q10T-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.1 | $3.10 |
| 10 | $2.79 | $27.90 |
| 100 | $2.35 | $235.00 |
| 500 | $2.1 | $1,050.00 |
| 1,000 | $1.92 | $1,920.00 |
| 3,000 | $1.75 | $5,250.00 |
PIC18F45Q10T-I/PT 概述
An 8-bit microcontroller (MCU) is a compact programmable processor that integrates a CPU, memory, and peripherals on a single silicon die. MCUs sit within the broader taxonomy: microcontroller -> embedded processor -> semiconductor IC. The PIC18F45Q10 belongs to Microchip's enhanced 8-bit PIC18 family, which uses a RISC Harvard architecture with separate program and data buses, achieving single-cycle instruction execution at up to 64 MHz.
Key features of this device include 36 digital I/O pins, a 10-bit ADC with up to 35 analog inputs, a 5-/10-bit DAC, multiple PWM modules, a Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), and Cyclic Redundancy Check with memory scan (SCAN/CRC) for functional safety. The 1.8 V to 5.5 V operating range supports battery-powered and 5 V industrial designs, while XLP (eXtreme Low Power) technology delivers sub-uA sleep currents for IoT endpoints.
The architecture uses an 8-bit data path with a 16-bit instruction word, a 31-level hardware stack, and interrupt-driven I/O. Integrated peripherals are routed through Microchip's Peripheral Pin Select (PPS) system, allowing flexible reassignment of digital functions to physical pins without rewiring the PCB. The integrated Core Independent Peripherals (CIPs) - CLC, CWG, HLT, NCO, and PWM - offload timing-critical tasks from the CPU, enabling deterministic real-time control in sensor-node and motor-control applications.
Typical applications include industrial sensor nodes, real-time closed-loop control, BLDC and stepper motor drivers, IoT edge devices, low-power battery monitoring, automotive body and lighting modules, and functional-safety subsystems. The wide 1.8 V to 5.5 V supply range is especially valuable in 5 V noisy industrial environments where higher-voltage rails improve noise immunity.
Designers should budget PCB area for the 44-pin TQFP (10x10 mm) footprint and confirm peripheral pin mapping using MPLAB X IDE with MCC. For functional-safety designs, the on-die CRC/Scan feature simplifies IEC 61508 SIL 2 compliance for industrial sensors.
This page combines distributor pricing, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet - optimized to give engineers an at-a-glance procurement and replacement decision.
直接替换替代料： PIC18F45Q10T-I/PT ——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： PIC18F45Q10T-I/PT （相同外形与封装尺寸） ——差异在于 DAC, Package, Program Memory (Flash), Core Architecture, ADC.
快速对比工具——选择替代料号进行并排对比：
PIC18F45Q10-I/PT
✅ 直接替换✓ 有现货
$1.39 / 个
查看数据手册 →PIC18F46Q10-I/PT
✅ 直接替换✓ 有现货
$1.55 / 个
查看数据手册 →PIC18F45Q10-E/PT
✅ 直接替换✓ 有现货
$1.55 / 个
查看数据手册 →PIC18F45K22T-I/PT
✅ 直接替换✓ 有现货
$2.78 / 个
查看数据手册 →PIC18F45K42T-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC18F45Q10T-I/PT 最大额定值与电气特性
| Product Family | PIC18F Q10 (Low-Power, High-Performance) |
| Core Architecture | 8-bit PIC18 RISC (Harvard) |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Data SRAM | 2 KB |
| Data EEPROM | 256 B |
| Operating Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, up to 35 channels |
| DAC | 5-bit / 10-bit |
| PWM Modules | Yes (multiple) |
| Configurable Logic Cell (CLC) | Yes |
| Complementary Waveform Generator (CWG) | Yes |
| Hardware Limit Timer (HLT) | Yes |
| Windowed Watchdog Timer (WWDT) | Yes |
| CRC with Memory Scan | Yes (functional safety) |
| Peripheral Pin Select (PPS) | Yes |
| XLP (eXtreme Low Power) | Yes |
| 封装 | 44-pin TQFP (PT) 10x10 mm |
| 安装类型 | Surface Mount, Tape & Reel |
| 工作温度 | -40 C to +85 C (Industrial, -I) |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
PIC18F45Q10T-I/PT 引脚配置
| 引脚 1 | RA0/AN0/C1IN0-/ICSPCLK — PORTA bit 0 / analog input 0 / ICD clock |
| 引脚 2 | RA1/AN1/C1IN1-/ICSPDAT — PORTA bit 1 / analog input 1 / ICD data |
| 引脚 3 | RA2/AN2/C1IN0+/VREF- — PORTA bit 2 / analog input 2 / negative reference |
| 引脚 4 | RA3/AN3/C1IN1+/VREF+ — PORTA bit 3 / analog input 3 / positive reference |
| 引脚 5 | RA4/AN4/C1OUT/T0CKI — PORTA bit 4 / analog input 4 / comparator output / T0 clock |
| 引脚 6 | RA5/AN5/SS1/HLVDIN — PORTA bit 5 / analog input 5 / SPI SS / HLVD input |
| 引脚 7 | RA6/OSC2/CLKR — PORTA bit 6 / crystal output / clock output |
| 引脚 8 | RA7/OSC1/CLKIN — PORTA bit 7 / crystal input / external clock |
| 引脚 9 | RE0/AN6 — PORTE bit 0 / analog input 6 |
| 引脚 10 | RE1/AN7 — PORTE bit 1 / analog input 7 |
| 引脚 11 | VDD — Positive supply (1.8 V to 5.5 V) |
| 引脚 12 | VSS — Ground reference |
| 引脚 13 | RB0/AN12/INT0 — PORTB bit 0 / analog input 12 / external interrupt 0 |
| 引脚 14 | RB1/AN10/INT1 — PORTB bit 1 / analog input 10 / external interrupt 1 |
| 引脚 15 | RB2/AN8/INT2 — PORTB bit 2 / analog input 8 / external interrupt 2 |
| 引脚 16 | RB3/AN9/INT3 — PORTB bit 3 / analog input 9 / external interrupt 3 |
| 引脚 17 | RB4/AN11 — PORTB bit 4 / analog input 11 |
| 引脚 18 | RB5/AN13 — PORTB bit 5 / analog input 13 |
| 引脚 19 | RB6/PGC — PORTB bit 6 / ICSP clock |
| 引脚 20 | RB7/PGD — PORTB bit 7 / ICSP data |
| 引脚 21 | RC0/SOSCO — PORTC bit 0 / secondary oscillator output |
| 引脚 22 | RC1/SOSCI — PORTC bit 1 / secondary oscillator input |
| 引脚 23 | RC2/AN14 — PORTC bit 2 / analog input 14 |
| 引脚 24 | RC3/AN15/SCL1 — PORTC bit 3 / analog input 15 / I2C clock |
| 引脚 25 | RC4/AN16/SDA1 — PORTC bit 4 / analog input 16 / I2C data |
| 引脚 26 | RC5/AN17 — PORTC bit 5 / analog input 17 |
| 引脚 27 | RC6/AN18/TX1/CK1 — PORTC bit 6 / analog input 18 / UART TX |
| 引脚 28 | RC7/AN19/RX1/DT1 — PORTC bit 7 / analog input 19 / UART RX |
| 引脚 29 | RD0 — PORTD bit 0 |
| 引脚 30 | RD1 — PORTD bit 1 |
| 引脚 31 | RD2 — PORTD bit 2 |
| 引脚 32 | RD3 — PORTD bit 3 |
| 引脚 33 | RD4 — PORTD bit 4 |
| 引脚 34 | RD5 — PORTD bit 5 |
| 引脚 35 | RD6 — PORTD bit 6 |
| 引脚 36 | RD7 — PORTD bit 7 |
| 引脚 37 | VDD — Positive supply (second pin) |
| 引脚 38 | VSS — Ground (second pin) |
| 引脚 39 | RE2 — PORTE bit 2 |
| 引脚 40 | RE3 — PORTE bit 3 / MCLR (with CONFIG setting) |
| 引脚 41 | RF0/AN20 — PORTF bit 0 / analog input 20 |
| 引脚 42 | RF1/AN21 — PORTF bit 1 / analog input 21 |
| 引脚 43 | RF2/AN22 — PORTF bit 2 / analog input 22 |
| 引脚 44 | RF3/AN23 — PORTF bit 3 / analog input 23 |
典型应用
PIC18F45Q10T-I/PT 适用于 6 应用s: Industrial Sensor Nodes, BLDC and Stepper Motor Control, IoT Edge Devices and Battery Monitoring, Automotive Body and Lighting Modules, Functional-Safety Subsystems, Low-Power Consumer Appliances.
Industrial Sensor Nodes
The PIC18F45Q10T-I/PT's XLP technology delivers sleep currents below 100 nA typical, while integrated 10-bit ADC and DAC sample and condition analog sensors without external components. In a wireless sensor node the MCU wakes on a CLC-triggered interrupt, runs CRC/Scan diagnostics for IEC 61508 SIL 2 compliance, and returns to sleep. Compared with discrete analog front ends, the 5 V tolerance eliminates the need for level shifters, reducing BOM and PCB area in 4-20 mA loop-powered designs.
推荐
BLDC and Stepper Motor Control
The on-chip Complementary Waveform Generator (CWG) produces complementary PWM with programmable dead-band for driving half-bridges, while the Hardware Limit Timer (HLT) provides hardware-bound fault shutdown without CPU intervention. With a 64 MHz PIC18 core and PPS, designers route PWM, CWG, and quadrature encoder inputs to any pin. This makes the PIC18F45Q10T-I/PT a cost-effective controller for small BLDC fans, pumps, and stepper indexers where real-time deterministic response is required.
推荐
IoT Edge Devices and Battery Monitoring
Battery-powered IoT endpoints benefit from the PIC18F45Q10T-I/PT's eXtreme Low Power (XLP) sleep modes, retention RAM, and Core Independent Peripherals that wake the CPU only on event signals. Integrated 10-bit ADC and 5-/10-bit DAC monitor battery voltage and current without external components, while functional-safety CRC/Scan supports IEC 60730 class B compliance for white goods. The 1.8 V to 5.5 V supply range accommodates single-cell Li-Ion, two-AA, and 5 V industrial rails.
推荐
Automotive Body and Lighting Modules
For 12 V automotive body controllers and LED lighting modules, the PIC18F45Q10T-I/PT's 5 V tolerance and -40 C to +85 C industrial temperature grade provide margin against load-dump transients. The CLC and CWG support configurable lighting patterns and complementary PWM for high-side/low-side LED drivers. For under-hood or harsher environments, the PIC18F45Q10-E/PT (extended temperature -40 C to +125 C, VAO-qualified) is the recommended drop-in upgrade.
推荐
Functional-Safety Subsystems
Functional-safety designs targeting IEC 61508 SIL 2 or IEC 60730 class B leverage the on-die CRC with memory Scan (SCAN) and Windowed Watchdog Timer (WWDT). The PIC18F45Q10T-I/PT's SCAN/CRC block performs periodic memory integrity checks without external components, while the WWDT catches stuck-CPU conditions. Combined with PPS flexibility, designers route safety-critical signals to dedicated pins for redundancy and fault isolation in industrial sensors and process-control peripherals.
推荐
Low-Power Consumer Appliances
In white goods and small appliances, the PIC18F45Q10T-I/PT provides 5 V GPIO noise immunity for HMI buttons and triac interfaces, integrated ADC for temperature sensing, and CWG/PWM for load control. The XLP sleep current extends battery life in portable devices such as cordless vacuums and electric toothbrushes. Designers use PPS to remap peripherals without PCB changes, accelerating product variants.
推荐
推荐产品汇总
工程参考数据： PIC18F45Q10T-I/PT ——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 | PIC18F45Q10-I/PT | PIC18F46Q10-I/PT | PIC18F45Q10-E/PT | PIC18F45K22T-I/PT | PIC18F45K42T-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-44 (PT) 10x10 mm | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Family | PIC18 Q10 (8-bit) | PIC18 Q10 | PIC18 Q10 | PIC18 Q10 | PIC18 K22 | PIC18 K42 |
| Flash | 32 KB | 32 KB | 64 KB | 32 KB | 32 KB | 32 KB |
| RAM | 2 KB | 2 KB | 4 KB | 2 KB | 2 KB | 2 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Max CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| CLC / CWG / HLT | Yes | Yes | Yes | Yes | Limited / none | Yes (K42 variant) |
| Operating Temperature | -40 C to +85 C (I) | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C |
关键差异点
- Integrated CIP (CLC/CWG/HLT/NCO) and functional-safety CRC/Scan in a low-power 8-bit core （对比 PIC18F45K22T-I/PT)
- Direct 32 KB to 64 KB memory upgrade without PCB rework （对比 PIC18F46Q10-I/PT)
- Industrial-grade tape-and-reel supply chain and broadest distributor stocking （对比 PIC18F45Q10T-E/PTVAO)
设计说明
Place a 100 nF ceramic decoupling capacitor as close as possible to each VDD/VSS pin pair (pins 11/12 and 37/38 on the 44-TQFP). Add a bulk 10 uF tantalum or ceramic capacitor at the MCU power rail. The PIC18F45Q10T-I/PT will operate from 1.8 V to 5.5 V, but brown-out and voltage-rail glitch performance improves when VDD is held within 5% of nominal. Decoupling reduces ADC reference noise and improves the 10-bit ADC ENOB in sensor applications.
For 44-pin TQFP layout, allocate a 10x10 mm land pattern with 0.8 mm pitch. Use a 4-layer stack-up with a continuous ground plane directly beneath the MCU to provide thermal spreading and reference-plane stitching. Keep the ICSP pins (RB6/PGD and RB7/PGC) accessible for in-circuit programming and debugging with MPLAB X IDE; route them straight to a 2x3 or 1x6 header with no series components.
Do not assume the Q10 family peripherals map 1:1 with older PIC18F K22/K42 code - the CLC, CWG, HLT, NCO, and PPS register structures differ. Confirm CONFIG fuse settings (FEXTOSC, RSTOSC, WDT, LVP) before migrating firmware. Also note that RE3 is shared with MCLR; configure the MCLRE bit to repurpose RE3 as a digital input if MCLR is disabled.
Estimated: at 64 MHz active mode with all peripherals enabled, the typical IDD is approximately 12 mA at 5 V (~60 mW). Junction temperature rise is negligible (<5 C) on the 44-TQFP thermal pad. In sleep mode the XLP current drops below 100 nA typical, allowing years of operation on a single coin cell for duty-cycled sensor nodes.
合规信息
RoHS and REACH compliant per Microchip product page; not AEC-Q100 qualified at I grade - select the -E/PTVAO variant for AEC-Q100 automotive applications.