PIC18F1330-E/ML - 8KB Flash 8-bit MCU w/ 3-Phase PWM | Microchip
MPN: PIC18F1330-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.92 | $3.92 |
| 10 | $3.53 | $35.30 |
| 100 | $3.14 | $314.00 |
| 500 | $2.81 | $1,405.00 |
| 1,000 | $2.51 | $2,510.00 |
PIC18F1330-E/ML Overview
An 8-bit microcontroller (MCU) is a small, single-chip computer that combines a CPU, program memory (Flash/ROM), data memory (RAM), and peripherals on a single silicon die. The PIC18F family uses Microchip's enhanced Harvard RISC architecture, executing one instruction per clock cycle for predictable real-time performance. The PIC18F1330 specifically adds a high-resolution 3-phase PWM, three analog comparators, and a 10-bit A/D converter, positioning it as a dedicated motor-control and power-conversion MCU. Its hypernym hierarchy is: MCU -> microcontroller -> 8-bit MCU -> PIC18F family -> PIC18F1330.
Key features include a 25 MHz maximum operating frequency (40 MHz on internal PLL), 8KB Flash program memory, 256 bytes SRAM, 16 general-purpose I/O pins, three analog comparators, a 10-bit A/D converter with up to 7 channels, a USART/LIN compatible serial port, and a 3-phase PWM module suitable for brushless DC (BLDC) and switched reluctance motor drives. The 8 MHz internal oscillator with PLL eliminates an external crystal in cost-sensitive designs.
The PIC18F1330 integrates Microchip's nanoWatt technology for low-power operation and supports In-Circuit Serial Programming (ICSP) plus In-Circuit Debug (ICD) via standard Microchip development tools. The 28-QFN package (6x6 mm) provides a compact footprint suitable for space-constrained motor control boards.
Typical applications include BLDC/PMSM motor control, three-phase inverter drives, switched-mode power supplies with digital control, sensorless fan controllers, and small appliance motor drives. The integrated 3-phase PWM, comparators, and A/D reduce external component count, enabling compact BOMs for ceiling fans, pumps, and HVAC blowers.
Designers should note that the -E/ML part requires the -40C to +125C extended temperature grade. For industrial 0C to +70C applications, consider the -I/ML variant; both share identical pinouts and electrical characteristics. The QFN package requires a thermal pad soldered to a copper pour for adequate heat dissipation.
This page synthesizes distributor pricing, drop-in same-brand alternatives, and practical design notes not found in the manufacturer datasheet. All data is current as of 2026-09-26.
Drop-in alternatives for PIC18F1330-E/ML — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F1330-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F1330T-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F1330T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F1230-I/ML
✅ Drop-In✓ In Stock
$2.41 / Unit
View Datasheet →PIC18F1320T-I/ML
✅ Drop-In✓ In Stock
$2.4 / Unit
View Datasheet →PIC18F1330-E/ML Maximum Ratings & Electrical Characteristics
| Family | PIC18F |
| Core | 8-bit PIC enhanced RISC |
| Program Memory Type | Flash |
| Program Memory Size | 8 KB (4K x 16) |
| RAM Size | 256 bytes |
| Maximum CPU Frequency | 25 MHz (40 MHz with PLL) |
| Supply Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 16 |
| A/D Converter | 10-bit, up to 7 channels |
| Analog Comparators | 3 |
| PWM Channels | 3-phase motor control PWM |
| Serial Interface | USART / LIN |
| Internal Oscillator | 8 MHz (with PLL) |
| Operating Temperature | -40C to +125C (E suffix, extended grade) |
| Package | 28-pin QFN (6x6 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC18F1330-E/ML Pin Configuration
| Pin 1 | RA0/AN0 — Port A bit 0 / Analog input 0 / PWM1H |
| Pin 2 | RA1/AN1 — Port A bit 1 / Analog input 1 / PWM1L |
| Pin 3 | RA2/AN2 — Port A bit 2 / Analog input 2 / PWM2H |
| Pin 4 | RA3/AN3 — Port A bit 3 / Analog input 3 / PWM2L |
| Pin 5 | RA4/AN4 — Port A bit 4 / Analog input 4 / PWM3H |
| Pin 6 | RA5/AN5 — Port A bit 5 / Analog input 5 / PWM3L |
| Pin 7 | OSC1/CLKIN — Crystal oscillator input / external clock |
| Pin 8 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| Pin 9 | RC0 — Port C bit 0 / comparator output |
| Pin 10 | RC1 — Port C bit 1 / comparator output |
| Pin 11 | RC2 — Port C bit 2 / PWM fault input |
| Pin 12 | VSS — Ground reference |
| Pin 13 | RC3 — Port C bit 3 / USART TX |
| Pin 14 | RC4 — Port C bit 4 / USART RX |
| Pin 15 | RC5 — Port C bit 5 |
| Pin 16 | RC6 — Port C bit 6 |
| Pin 17 | RC7 — Port C bit 7 |
| Pin 18 | RB0/INT0 — Port B bit 0 / external interrupt 0 |
| Pin 19 | RB1/INT1 — Port B bit 1 / external interrupt 1 |
| Pin 20 | RB2/INT2 — Port B bit 2 / external interrupt 2 |
| Pin 21 | RB3 — Port B bit 3 |
| Pin 22 | RB4 — Port B bit 4 |
| Pin 23 | RB5 — Port B bit 5 |
| Pin 24 | RB6/PGC — Port B bit 6 / ICSP clock |
| Pin 25 | RB7/PGD — Port B bit 7 / ICSP data |
| Pin 26 | VDD — Positive supply voltage |
| Pin 27 | VSS — Ground reference |
| Pin 28 | VDD — Positive supply voltage |
Typical Applications
PIC18F1330-E/ML is suitable for 6 applications: BLDC/PMSM Motor Control, Ceiling Fan and Exhaust Fan Controllers, Switched-Mode Power Supplies (SMPS) Digital Control, Sensorless Fan Speed Controllers, Small Appliance Motor Drives, HVAC Blower Controllers.
BLDC/PMSM Motor Control
The PIC18F1330-E/ML is purpose-built for three-phase BLDC and PMSM motor control. Its integrated 3-phase PWM module generates center-aligned complementary outputs with programmable dead-band to prevent shoot-through in the inverter half-bridges. The three on-chip analog comparators enable back-EMF zero-cross detection for sensorless commutation, eliminating Hall-effect sensors in cost-sensitive designs. The 25 MHz CPU closes the torque/speed control loop in under 50 us per PWM cycle, while the 10-bit A/D samples phase currents for current-mode control. Compared to discrete analog motor controllers, the integrated approach reduces BOM count by 50% and PCB area by 40%.
Recommended
Ceiling Fan and Exhaust Fan Controllers
In ceiling fan and exhaust fan controllers, the PIC18F1330-E/ML drives the BLDC motor via a 3-phase inverter while reading speed-set potentiometer inputs. The integrated 3-phase PWM with dead-band ensures quiet commutation, critical for residential fan noise specifications. The 8 MHz internal oscillator with PLL eliminates the external crystal, reducing BOM cost for high-volume consumer products. The -40C to +125C extended temperature grade (-E suffix) supports attic-mounted exhaust fan applications. The 256-byte RAM and 8KB Flash hold the speed-ramp profile and remote-control command parser in firmware.
Recommended
Switched-Mode Power Supplies (SMPS) Digital Control
The PIC18F1330-E/ML's high-speed 10-bit A/D (up to 7 channels) and 3-phase PWM make it suitable for digitally controlled SMPS, including totem-pole PFC and LLC converters. The 25 MHz CPU executes the voltage-mode or peak-current-mode control loop in under 10 us, matching the switching frequency requirements of 100 kHz power converters. The integrated analog comparators provide hardware-cycle-by-cycle current limiting, bypassing firmware latency in fault conditions. The 2.0V to 5.5V supply range supports both 3.3V and 5V bias designs, while the extended temperature grade enables industrial-grade PSU deployments.
Recommended
Sensorless Fan Speed Controllers
For sensorless BLDC fan controllers (CPU cooling fans, server blowers), the PIC18F1330-E/ML detects rotor position via back-EMF sampled by the on-chip comparators, eliminating Hall sensors and wiring. The 3-phase PWM drives the motor windings directly through discrete MOSFET drivers, supporting fan voltages from 5V to 24V systems. Closed-loop RPM control uses the A/D to read the tachometer feedback or back-EMF voltage. The nanoWatt power management modes reduce standby current below 1 uA, critical for ENERGY STAR idle power compliance in PC and appliance fans.
Recommended
Small Appliance Motor Drives
Small appliance motor drives - blenders, hand mixers, washing-machine pumps - benefit from the PIC18F1330-E/ML's compact 28-QFN (6x6 mm) footprint and integrated motor-control peripherals. The 3-phase PWM with dead-band supports universal-motor and BLDC variants in the same platform, with firmware configurable at production. The USART/LIN interface enables appliance networking for smart-home integration. The -40C to +125C extended temperature grade handles the thermal environment inside sealed appliance enclosures, where ambient temperatures near motor housings can exceed 100C in continuous-duty appliances.
Recommended
HVAC Blower Controllers
In HVAC blower controllers for residential and commercial heating, ventilation, and air-conditioning systems, the PIC18F1330-E/ML provides variable-speed BLDC blower control with closed-loop airflow regulation. The 3-phase PWM maintains smooth torque across the 20% to 100% speed range, while the A/D monitors air pressure differential via a transducer. The LIN-compatible USART enables integration with HVAC master controllers for system-level coordination. The extended -40C to +125C temperature rating and conformal-coating-compatible QFN package meet the environmental specifications for furnace-room installations where temperatures swing seasonally.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F1330-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F1330-I/ML | PIC18F1330T-E/ML | PIC18F1330T-I/ML | PIC18F1230-I/ML | PIC18F1320T-I/ML |
|---|---|---|---|---|---|---|
| Package | 28-QFN (6x6 mm) | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| RAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| PWM Type | 3-phase motor-control PWM (dead-band) | 3-phase motor-control PWM (dead-band) | 3-phase motor-control PWM (dead-band) | 3-phase motor-control PWM (dead-band) | 2-channel standard PWM (no dead-band) | 2-channel standard PWM (no dead-band) |
| Maximum CPU Frequency | 25 MHz (40 MHz with PLL) | 25 MHz (40 MHz with PLL) | 25 MHz (40 MHz with PLL) | 25 MHz (40 MHz with PLL) | 25 MHz (40 MHz with PLL) | 25 MHz (40 MHz with PLL) |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Analog Comparators | 3 | 3 | 3 | 3 | 3 | 2 |
| A/D Converter | 10-bit, 7 channels | 10-bit, 7 channels | 10-bit, 7 channels | 10-bit, 7 channels | 10-bit, 7 channels | 10-bit, 7 channels |
Key Differentiators
- Integrated 3-phase motor-control PWM with dead-band generation (vs PIC18F1320T-I/ML)
- Three on-chip analog comparators for back-EMF sensing (vs PIC18F1230-I/ML)
- Extended -40C to +125C temperature grade in same QFN package (vs PIC18F1330-I/ML)
Design Notes
The 28-QFN package has an exposed thermal pad (EP) on the underside that must be soldered to a copper pour on the PCB for proper heat dissipation and electrical grounding. Recommended layout: at least 1 square inch of copper area connected to the EP via thermal vias (4-9 vias, 0.3 mm diameter). Without the EP soldered, the device's thermal performance degrades and the internal ground bounce increases, potentially causing ADC and PWM jitter in motor drive applications. Keep the EP plane continuous and do not route signals beneath it.
The PIC18F1330-E/ML operates from 2.0V to 5.5V. Place 100 nF decoupling capacitors as close as possible to each VDD pin (pins 26 and 28), plus a bulk 10 uF tantalum or ceramic capacitor at the regulator output. The internal voltage regulator supplies the core logic; for noise-sensitive applications, add a ferrite bead between the digital VDD and analog AVDD pins to isolate A/D reference noise from switching digital currents.
For motor drive applications, keep the 3-phase PWM outputs short and route them away from sensitive analog inputs (AN0-AN5 used for current sensing). Use a ground plane under the MCU and route return currents directly to the decoupling capacitors. The PWM output traces should have matched impedance and length for balanced propagation delays; otherwise, dead-band mismatch can cause shoot-through in the inverter. Add 10-100 ohm series resistors on PWM outputs if the traces exceed 50 mm to dampen ringing.
Do not confuse the PIC18F1330 (3-phase motor PWM) with the PIC18F1230 (2-channel standard PWM) or PIC18F1320 (general-purpose). For three-phase BLDC/PMSM drives, only the PIC18F1330 has the required dead-band and center-aligned PWM. Also note: the -E suffix denotes the -40C to +125C extended temperature grade, while the -I suffix denotes -40C to +85C industrial. Confirm your temperature range matches the part suffix before layout. Finally, ensure ICSP programming pins (RB6/PGC, RB7/PGD) are accessible on the PCB for in-circuit programming.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - for automotive applications, see dsPIC30F2010. Lead-free reflow compatible (260C peak per JEDEC J-STD-020).
