PIC18F46Q10-I/PT - 64KB Flash 8-bit MCU | Microchip | TQFP-44
MPN: PIC18F46Q10-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.52 | $25.20 |
| 100 | $2.18 | $218.00 |
| 500 | $1.92 | $960.00 |
| 1,000 | $1.71 | $1,710.00 |
| 3,000 | $1.55 | $4,650.00 |
PIC18F46Q10-I/PT Overview
A PIC18 microcontroller is a member of Microchip's enhanced 8-bit RISC architecture family, positioned within the broader microcontroller -> embedded controller -> semiconductor hierarchy. PIC18 devices extend the baseline PIC16 instruction set with hardware multiply, larger linear addressing windows, and C-optimized compiler support from MPLAB XC8. The Q10 sub-family specifically adds eXtreme Low Power (XLP) modes, integrated op-amps/comparators, and peripherals oriented toward closed-loop real-time control and sensor-node designs, distinguishing it from older PIC18F K-series parts that prioritize raw throughput.
Key differentiating features include Core Independent Peripherals (CIPs) such as the 16-bit PWM with complementary outputs and dead-band control, the CWG (Complementary Waveform Generator), and the Numerically Controlled Oscillator (NCO). Functional Safety (FuSa) support includes a Windowed Watchdog Timer, CRC/Scan module for memory integrity, and a Hardware Limit Timer (HLT) for actuator protection - features that simplify IEC 61508 / SIL-2 design paths for industrial sensors and motor-control front-ends.
Typical applications include industrial sensor nodes, HVAC actuator control, low-power IoT edge devices, automotive body and lighting modules, white goods motor control, and consumer touch-sensing front panels. The 5V native I/O tolerance increases noise immunity in factory-floor environments where 3.3V-only MCUs are marginal.
When designing with this device, ensure the configuration bits are locked via the Configuration Word register before any Flash programming. For low-power IoT use cases, enable the nanoWatt XLP Sleep mode with RTC wake - this typically draws less than 50 nA. Use the ADC2 with hardware averaging and threshold compare to offload CPU cycles in sensor-fusion loops.
This page synthesizes distributor pricing, drop-in PIC18 alternatives, and practical design notes not found in the manufacturer datasheet, providing engineering teams with consolidated selection and procurement guidance.
Drop-in alternatives for PIC18F46Q10-I/PT — 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 PIC18F46Q10-I/PT (same form factor and footprint) — differing in Package, ADC, Program Memory (Flash), DAC, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F45Q10-I/PT
✅ Drop-In✓ In Stock
$1.39 / Unit
View Datasheet →PIC18F46Q10-I/PTVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F46K22-I/PT
✅ Drop-In✓ In Stock
$2.32 / Unit
View Datasheet →PIC18F45K22-I/PT
✅ Drop-In✓ In Stock
$2.65 / Unit
View Datasheet →PIC18F46K40-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF15386-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.95 / Unit
View Datasheet →PIC18F46Q10-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC18 enhanced RISC |
| Program Memory (Flash) | 64 KB |
| SRAM | 3,728 bytes (3728 B) |
| EEPROM | 1,024 bytes (1024 B) |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage Range | 2.5 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit ADC2 (with Computation) |
| DAC | 5-bit and 10-bit DAC |
| Package | 44-pin TQFP (10x10 mm) |
| Operating Temperature | -40C to +85C (Industrial) |
| Mounting Type | Surface Mount |
| Family | PIC XLP 18Q, Functional Safety (FuSa) |
| RoHS Status | Compliant |
| MSL Level | 3 |
PIC18F46Q10-I/PT Pin Configuration
| Pin 1 | RA2 — Port A bit 2 / analog input |
| Pin 2 | RA3 — Port A bit 3 / analog input |
| Pin 3 | RA4 — Port A bit 4 / analog input |
| Pin 4 | RA5 — Port A bit 5 / analog input |
| Pin 5 | RA6 — Port A bit 6 / analog input |
| Pin 6 | RA7 — Port A bit 7 / analog input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply voltage |
| Pin 9 | OSC1 — Crystal oscillator input |
| Pin 10 | OSC2 — Crystal oscillator output |
| Pin 11 | RC0 — Port C bit 0 |
| Pin 12 | RC1 — Port C bit 1 |
| Pin 13 | RC2 — Port C bit 2 |
| Pin 14 | RC3 — Port C bit 3 |
| Pin 15 | RC4 — Port C bit 4 |
| Pin 16 | RC5 — Port C bit 5 |
| Pin 17 | RC6 — Port C bit 6 |
| Pin 18 | RC7 — Port C bit 7 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RB0 — Port B bit 0 |
| Pin 22 | RB1 — Port B bit 1 |
| Pin 23 | RB2 — Port B bit 2 |
| Pin 24 | RB3 — Port B bit 3 |
| Pin 25 | RB4 — Port B bit 4 |
| Pin 26 | RB5 — Port B bit 5 |
| Pin 27 | RB6 — Port B bit 6 / ICSP PGC |
| Pin 28 | RB7 — Port B bit 7 / ICSP PGD |
| Pin 29 | MCLR — Master clear reset input |
| Pin 30 | RE3 — Port E bit 3 |
| Pin 31 | RD0 — Port D bit 0 |
| Pin 32 | RD1 — Port D bit 1 |
| Pin 33 | RD2 — Port D bit 2 |
| Pin 34 | RD3 — Port D bit 3 |
| Pin 35 | RD4 — Port D bit 4 |
| Pin 36 | RD5 — Port D bit 5 |
| Pin 37 | RD6 — Port D bit 6 |
| Pin 38 | RD7 — Port D bit 7 |
| Pin 39 | VSS — Ground reference |
| Pin 40 | VDD — Positive supply voltage |
| Pin 41 | RE0 — Port E bit 0 |
| Pin 42 | RE1 — Port E bit 1 |
| Pin 43 | RE2 — Port E bit 2 |
| Pin 44 | AVSS — Analog ground |
Typical Applications
PIC18F46Q10-I/PT is suitable for 7 applications: Industrial Sensor Nodes, HVAC Actuator Control, Low-Power IoT Edge Devices, Automotive Body and Lighting Modules, White Goods Motor Control, Consumer Touch-Sensing Front Panels, Portable Medical Monitoring.
Industrial Sensor Nodes
The PIC18F46Q10-I/PT is engineered for industrial sensor nodes that require robust 5V noise immunity and integrated Functional Safety peripherals. Its 64 KB Flash accommodates MODBUS/RTU and IO-Link protocol stacks plus application firmware, while the 10-bit ADC2 with Computation performs threshold-based scanning without CPU intervention. The Windowed WDT and CRC/Scan module support IEC 61508 SIL-2 design paths, and the nanoWatt XLP Sleep mode (under 50 nA) enables battery-backed wireless sensor deployments with multi-year coin-cell lifetimes.
Recommended
HVAC Actuator Control
HVAC damper and valve actuators benefit from the PIC18F46Q10-I/PT's Complementary Waveform Generator (CWG) and 16-bit PWM with dead-band control, which directly drive H-bridge FET stages for three-phase brushless DC or stepper motors. The Hardware Limit Timer (HLT) provides hardware-enforced actuator travel limits independent of firmware, increasing SIL-2 safety margins. With 5V I/O tolerance, the MCU interfaces directly to industrial 24V-referenced feedback signals through resistive dividers, simplifying the analog front end in damper position feedback loops.
Recommended
Low-Power IoT Edge Devices
Battery-powered IoT edge nodes leverage the PIC18F46Q10-I/PT's eXtreme Low Power XLP Sleep modes drawing under 50 nA with RTC retention, enabling multi-year lifetimes on a single CR2032 coin cell. The 64 KB Flash comfortably hosts BLE/Zigbee protocol stacks plus sensor-fusion firmware. Core Independent Peripherals like the NCO and CWG run autonomously in Sleep, waking the CPU only on threshold events from the ADC2 with Computation, dramatically reducing average power consumption in event-driven sensing.
Recommended
Automotive Body and Lighting Modules
The PIC18F46Q10-I/PT, including the VAO (Vehicle AEC-Q100 Optional) screened variant, supports automotive body controllers and lighting modules. Its 5V I/O tolerance interfaces with legacy 12V automotive sensors through simple resistor dividers, and the 64 MHz CPU clock executes LIN stack plus lighting fade algorithms in real time. The CWG drives LED strings with hardware PWM dimming while the Windowed WDT prevents runaway firmware in the harsh automotive electrical environment with load-dump transients up to 40V.
Recommended
White Goods Motor Control
Washing machines, dishwashers, and refrigerators use the PIC18F46Q10-I/PT as the main motor and user-interface controller. The 16-bit PWM with complementary outputs drives inverter-stage IGBTs for BLDC compressor motors, while the ADC2 samples motor current for sensorless FOC algorithms. Hardware Limit Timer provides independent over-current protection, and the 64 KB Flash supports multiple motor control profiles and OEM diagnostic routines in a single firmware image, reducing SKU complexity for appliance manufacturers.
Recommended
Consumer Touch-Sensing Front Panels
Consumer products with capacitive touch panels benefit from the PIC18F46Q10-I/PT's integrated MTCH (mTouch) capacitive sensing module, which provides hardware-driven proximity and touch detection without CPU overhead. The 64 KB Flash hosts USB device stacks for touch-panel data reporting, while the CWG drives haptic feedback actuators. nanoWatt XLP Sleep modes maintain touch wake-up at under 1 microamp average, enabling battery-powered remote controls and portable touch interfaces with year-long battery life.
Recommended
Portable Medical Monitoring
Battery-powered patient monitors and pulse oximeters use the PIC18F46Q10-I/PT for its low-power Sleep modes with RTC retention and 10-bit ADC2 with averaging for vital-sign signal conditioning. The 64 KB Flash supports FDA 510(k) firmware with secure boot via CRC/Scan integrity checks. The 5V-tolerant I/O interfaces directly to legacy medical sensors, and the eXtreme Low Power modes enable continuous overnight SpO2 monitoring on rechargeable Li-ion cells without operator intervention.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F46Q10-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F45Q10-I/PT | PIC18F46Q10-I/PTVAO | PIC18F46K22-I/PT | PIC18F45K22-I/PT | PIC18F46K40-I/PT | PIC16LF15386-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (10x10) | 44-pin TQFP (10x10) - same | 44-pin TQFP (10x10) - same | 44-pin TQFP (10x10) - same | 44-pin TQFP (10x10) - same | 44-pin TQFP (10x10) - same | 44-pin TQFP (10x10) - same |
| Flash Memory | 64 KB | 32 KB (-50%) | 64 KB (same) | 64 KB (same) | 32 KB (-50%) | 64 KB (same) | 28 KB (-56%) |
| SRAM | 3,728 bytes | 2,048 bytes | 3,898 bytes | 2,048 bytes | |||
| CPU Architecture | PIC18 enhanced 8-bit | PIC18 enhanced 8-bit | PIC18 enhanced 8-bit | PIC16 baseline 8-bit (different core) | |||
| Max CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 32 MHz (-50%) | |||
| Operating Voltage | 2.5V to 5.5V | 2.5V to 5.5V | 1.8V to 3.6V (different range) | ||||
| ADC | 10-bit ADC2 (Computation) | 10-bit ADC2 (Computation) | 10-bit legacy ADC (no ADC2) | 10-bit ADC | |||
| Functional Safety Features | WWDT, CRC/Scan, HLT | WDT only (no CRC/Scan, no HLT) | WDT only | ||||
| Core Independent Peripherals | CWG, NCO, PWM, ADC2 | ECCP, MSSP (no CWG/NCO/ADC2) | CWG, NCO (no ADC2) |
Key Differentiators
- Newer CIPs with ADC2 Computation offload (vs PIC18F46K22-I/PT)
- Integrated Functional Safety peripherals (vs PIC18F46K40-I/PT)
- eXtreme Low Power Sleep under 50 nA (vs PIC16LF15386-I/PT)
- Automotive VAO screening option (vs PIC18F46Q10-I/PTVAO)
Design Notes
The PIC18F46Q10-I/PT operates from 2.5V to 5.5V with separate analog (AVDD/AVSS) and digital (VDD/VSS) supply pins. Decouple each VDD pin with a 100 nF ceramic capacitor placed within 3 mm of the pin, plus a bulk 10 uF tantalum or ceramic capacitor at the package. For ADC accuracy above 10 ENOB, add a small ferrite bead between AVDD and VDD and place a separate 100 nF + 10 uF decoupling network directly on AVDD. Tie all VSS pins to a single ground plane; do not split analog and digital grounds.
Configuration bits in the CONFIG words must be programmed before any Flash application code execution - failure to lock the configuration words results in the device defaulting to a non-functional clock source. The MCLR pin requires a 10 kohm pull-up to VDD; do not leave it floating, or use the internal MCLR disable configuration bit only in production designs. When migrating from PIC18F K-series firmware, the ADC registers have changed substantially - do not assume legacy ADC register names apply.
Route the ICSP PGC/PGD lines (RB6/RB7) directly to a 6-pin ICSP header with no series resistors on the data lines, and keep traces short (<50 mm) to avoid programming failures. The 44-pin TQFP 10x10 mm package has a 0.8 mm pitch - use 0.4 mm-wide traces between pads and ensure your PCB manufacturer's minimum clearance rules support this. For high-speed oscillator operation above 20 MHz, place a ground guard ring around the crystal and load capacitors.
The 44-pin TQFP package dissipates approximately 1 W maximum at 64 MHz full-load operation across all GPIO. Estimated: at 5V supply, 64 MHz, all peripherals active, and 36 GPIO sourcing 10 mA each, the die dissipates roughly 800 mW with theta_JA around 50 C/W, yielding a 40 C temperature rise above ambient. For industrial -40C to +85C ambient operation, this is acceptable; for high-temperature environments above 70 C ambient, consider the PIC18F46Q10-E/PT extended-temperature variant.
Compliance Information
RoHS compliant per Microchip product page. Industrial -I temperature grade -40C to +85C. The PIC18F46Q10-I/PTVAO automotive variant provides AEC-Q100 screening for vehicle applications; the standard -I/PT is not AEC-Q100 qualified.