PIC18F45Q10T-I/MP - 32KB Flash 8-bit MCU, 64MHz, 40-QFN | Microchip
MPN: PIC18F45Q10T-I/MP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.66 | $26.60 |
| 100 | $2.36 | $236.00 |
| 500 | $2.12 | $1,060.00 |
| 1,000 | $1.88 | $1,880.00 |
PIC18F45Q10T-I/MP Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and integrated peripherals such as ADC, timers, and communication controllers. Within the broader semiconductor hierarchy, an MCU sits between microprocessors (MPUs, which require external memory) and application-specific integrated circuits (ASICs); the 8-bit PIC18 family specifically targets deterministic, real-time control with low power consumption and rich on-chip analog.
Key differentiating features include 5V operation for increased noise immunity in industrial environments, the eXtreme Low-Power (XLP) architecture with sleep currents in the nanoamp range, Core Independent Peripherals (CIPs) such as CLC, CWG, and Numerically Controlled Oscillator (NCO), and Functional Safety documentation support for IEC 61508 SIL-3 / IEC 60730 Class B designs. The device supports 1.8V-5.5V operation (with 5V tolerant digital pins) and integrates 36 I/O lines.
Architecturally, the PIC18F45Q10 uses a Harvard RISC core with single-cycle execution at 64MHz (16 MIPS), hardware Multiply and Divide, and a 16-level hardware stack. The integrated intelligent analog block includes ADC2 with computation, dual comparators, a Fixed Voltage Reference (FVR), and zero-cross detection, reducing external component count and BOM cost.
Typical applications include industrial sensor nodes, low-power IoT end nodes, home appliances (white goods), automotive body and interior modules, motor control (BLDC, stepper, fan), and Functional Safety household appliances. The wide 1.8V-5.5V range and 5V tolerance make it well suited for 3.3V and 5V mixed systems.
When designing with this device, ensure the exposed pad (EP) on the 40-QFN package is soldered to a sufficient ground copper pour for thermal dissipation (theta-JA around 28 C/W). For Functional Safety designs, use the supplied FMEDA, safety manual, and diagnostic libraries from Microchip to accelerate IEC 61508 / IEC 60730 certification.
This page synthesizes distributor pricing, drop-in alternatives from the PIC18-Q10 family, and practical design notes for 8-bit real-time control not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC18F45Q10T-I/MP — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC18F45Q10T-I/MP (same form factor and footprint) — differing in ADC, Package, DAC, Program Memory (Flash), Communication.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F45Q10-I/MP
✅ Drop-In✓ In Stock
$1.78 / Unit
View Datasheet →PIC18F45Q10T-E/MP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F45Q10-E/PT
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC18F45K22T-I/PT
✅ Drop-In✓ In Stock
$2.78 / Unit
View Datasheet →PIC18F45K42T-I/ML
✅ Drop-In✓ In Stock
$1.75 / Unit
View Datasheet →PIC18F45Q10T-I/MP Maximum Ratings & Electrical Characteristics
| Product Family | PIC18 XLP Q10 |
| Core | 8-bit PIC18 RISC |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Data Memory (RAM) | 2 KB (2.25K x 8) |
| EEPROM | 256 B |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit ADC2 with computation |
| DAC | 5-bit / 8-bit DAC |
| PWM Channels | Yes (multiple CCP/ECCP) |
| CWG (Complementary Waveform Generator) | Yes |
| HLT (Hardware Limit Timer) | Yes |
| WWDT (Windowed Watchdog Timer) | Yes |
| SCAN/CRC | Yes |
| Functional Safety (FuSa) | Yes - IEC 61508 / IEC 60730 documentation |
| Package | 40-pin QFN (5x5 mm) with exposed pad |
| Operating Temperature Range | -40C to +85C (Industrial) |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| RoHS Status | Compliant |
PIC18F45Q10T-I/MP 40-pin qfn (5x5 mm) with exposed pad Pin Configuration Guide
Pin configuration for PIC18F45Q10T-I/MP (40-pin qfn (5x5 mm) with exposed pad package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC18F45Q10T-I/MP.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC18F45Q10T-I/MP is suitable for 8 applications: Industrial Sensor Nodes, Home Appliance Control (White Goods), Low-Power IoT End Nodes, BLDC and Stepper Motor Control, Automotive Body and Interior Modules, Functional Safety Appliance Designs, Power Tools and Battery Chargers, Smart Lighting and LED Drivers.
Industrial Sensor Nodes
The PIC18F45Q10T-I/MP fits industrial sensor nodes because its 32 KB Flash and 2 KB RAM support Modbus RTU or IO-Link protocol stacks, while the 10-bit ADC2 with computation performs local signal conditioning on temperature, pressure, or flow transducers. Operating from 1.8 V to 5.5 V with 5 V noise immunity, it tolerates the 24 V industrial bus when paired with external protection. The XLP architecture enables years of battery life on wireless sensor nodes with nanoamp sleep currents. The Functional Safety (FuSa) support accelerates IEC 61508 SIL-3 certified designs. Typical power consumption at 64 MHz with all peripherals active is around 8 mA at 5 V, dropping below 1 uA in Sleep mode.
Recommended
Home Appliance Control (White Goods)
The PIC18F45Q10T-I/MP is engineered for white-goods appliance control such as washing machines, dishwashers, refrigerators, and microwave ovens. Its Functional Safety (FuSa) documentation package, including FMEDA and safety manual, supports IEC 60730 Class B compliance required by major appliance certifications. The integrated CWG (Complementary Waveform Generator) drives brushless DC motors for compressors and fans directly. ADC2 with hardware computation automates zero-crossing detection for triac-based heater control, while the HLT and WWDT simplify safety-shutdown logic. The wide 1.8 V-5.5 V supply range covers both 3.3 V logic and 5 V analog signal chains.
Recommended
Low-Power IoT End Nodes
The PIC18F45Q10T-I/MP serves battery-powered IoT end nodes such as wireless thermostats, smart locks, and remote environmental monitors. Its XLP eXtreme Low-Power architecture delivers sleep currents in the nanoamp range and multiple wake sources including RTC, watchdog, and peripheral interrupts, enabling multi-year battery life on a single coin cell. The 64 MHz core executes 16 MIPS, allowing fast radio protocol handling (LoRa, BLE, Sub-GHz proprietary) without excessive active time. The 32 KB Flash accommodates OTA bootloaders and application code. Hardware CRC/SCAN simplifies memory integrity verification at startup.
Recommended
BLDC and Stepper Motor Control
The PIC18F45Q10T-I/MP is well suited to small BLDC, stepper, and fan motor control applications in the 12 V-24 V range. The CWG peripheral generates complementary PWM with hardware dead-band insertion, directly driving half-bridge gate drivers such as the MCP8024 or FAN8100. The 64 MHz core (16 MIPS) executes Field-Oriented Control (FOC) or trapezoidal commutation in software while leaving headroom for housekeeping. ADC2 with computation samples back-EMF and phase currents synchronously with the PWM period. The 5 V tolerance on digital I/O simplifies interfacing to 3.3 V gate drivers without level shifters.
Recommended
Automotive Body and Interior Modules
The PIC18F45Q10T-I/MP can be used in non-safety automotive body electronics such as interior lighting, mirror control, seat position memory, and HVAC flap actuators. The wide 1.8 V-5.5 V range tolerates automotive cranking transients when paired with a 5 V regulator, and the 5 V noise immunity exceeds typical automotive EMC requirements. The CLC (Configurable Logic Cell) implements glue logic without external gates, while the integrated 10-bit ADC handles multiple analog sensors. For AEC-Q100 Grade 1 designs, the PIC18F45Q10T-E/MP extended-temperature variant supports operation to +125 C. Note: this family is not AEC-Q100 qualified - use AEC-Q100 specific parts for full automotive compliance.
Recommended
Functional Safety Appliance Designs
The PIC18F45Q10T-I/MP is specifically engineered to serve as the main controller in IEC 60730 Class B and IEC 61508 SIL-3 functional safety appliance designs. Microchip supplies the FMEDA report, safety manual, diagnostic library, and self-test routines for Class B signature verification, watchdog testing, and clock monitoring. The integrated WWDT, CRC/SCAN, hardware limit timer (HLT), and ADC window comparator all support safety diagnostics. Typical applications include gas cooktops, washing machine door locks, oven temperature limiters, and HVAC safety shutdown circuits. The 32 KB Flash holds both application and safety library code within the same device, reducing BOM and certification cost.
Recommended
Power Tools and Battery Chargers
The PIC18F45Q10T-I/MP powers cordless power tools, garden tools, and lithium-ion battery chargers where 5 V noise immunity and Functional Safety documentation are critical. The ADC2 with computation accurately measures battery voltage, current, and temperature for CC-CV charging profiles. PWM channels drive the synchronous buck or flyback converter at frequencies up to 64 MHz system clock with 4x PWM resolution. The exposed-pad 40-QFN package provides the thermal performance required for high-current charger designs. The XLP architecture enables low standby power when the charger is plugged in but no battery is connected, meeting energy-efficiency regulations.
Recommended
Smart Lighting and LED Drivers
The PIC18F45Q10T-I/MP is suitable for digitally controlled LED drivers, architectural lighting, and human-centric lighting requiring smooth dimming. The CWG and PWM peripherals generate high-resolution LED dimming signals with 16-bit resolution and zero-cross detection for TRIAC dimmer compatibility. The 10-bit ADC reads ambient light sensors and potentiometers for closed-loop brightness control. The integrated 5-bit/8-bit DAC produces analog reference voltages for constant-current LED driver ICs. The 32 KB Flash supports DALI, DMX512, or Casambi wireless lighting protocol stacks. Low-power Sleep mode keeps wall-switch controllers below 50 mW standby.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F45Q10T-I/MP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F45Q10-I/MP | PIC18F45Q10T-E/MP | PIC18F45K22T-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-QFN (5x5) | 40-QFN (5x5) - same | 40-QFN (5x5) - same | 44-TQFP |
| Program Memory (Flash) | 32 KB | 32 KB | 32 KB | 32 KB |
| RAM | 2 KB | 2 KB | 2 KB | 1.5 KB |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Functional Safety (FuSa) | Yes | Yes | Yes | No |
| Pricing (1 piece) | $2.95 | $2.85 | $3.10 | $3.40 |
Key Differentiators
- Functional Safety (FuSa) documentation included (vs PIC18F45K22T-I/PT)
- Lower power XLP nanoWatt technology (vs PIC18F45K22T-I/PT)
- Modern Core Independent Peripherals (CIPs) (vs PIC18F45K22T-I/PT)
- Compact 40-QFN (5x5) with exposed pad (vs PIC18F45K22T-I/PT (44-TQFP))
Design Notes
The 40-QFN (5x5 mm) package requires careful PCB layout. Solder the exposed pad (EP) directly to a continuous ground copper pour with thermal vias (typically 9-12 vias in a 3x3 grid) to achieve theta-JA around 28 C/W. Without proper EP soldering, junction temperature can rise 30-50 C above ambient at full 64 MHz operation, potentially triggering thermal shutdown in enclosed designs.
Place a 100 nF decoupling capacitor within 2 mm of each VDD pin and a single 10 uF bulk capacitor at the package supply entry. For multi-rail designs, isolate analog AVDD from digital VDD with a ferrite bead and add a dedicated 100 nF + 10 uF on the analog rail. The PIC18F45Q10's low-noise ADC2 reference requires clean analog supply to achieve full 10-bit accuracy.
Estimated: at 5 V supply, 64 MHz CPU active, all peripherals on, the PIC18F45Q10T-I/MP consumes approximately 8 mA, dissipating 40 mW. With 28 C/W theta-JA on a 4-layer PCB with EP soldering, junction temperature rises only 1.1 C above ambient - well within limits. However, in Sleep mode with RTC active, current drops to 50 nA typical, enabling multi-year battery operation in IoT sensor nodes.
Do not confuse the -I/MP (industrial, QFN) suffix with -I/PT (industrial, TQFP) or -I/SP (industrial, SPDIP) - they are different packages and not PCB-compatible. Also note: the PIC18F45Q10 is not AEC-Q100 qualified; the -E/MP extended temperature variant supports +125 C operation but is not automotive-qualified. For automotive designs, use AEC-Q100 specific PIC18F variants such as the PIC18F46Q84-I/PT.
Compliance Information
RoHS and REACH compliant per Microchip product page. Functional Safety (FuSa) documentation supports IEC 61508 SIL-3 and IEC 60730 Class B designs but is NOT AEC-Q100 automotive qualified - use PIC18F46Q84-I/PT or similar for AEC-Q100 requirements.
