PIC18LF1330-I/ML - 8KB Flash 8-Bit MCU | Microchip
MPN: PIC18LF1330-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.84 | $2.84 |
| 10 | $2.56 | $25.60 |
| 100 | $2.27 | $227.00 |
| 500 | $1.98 | $990.00 |
| 1,000 | $1.78 | $1,780.00 |
PIC18LF1330-I/ML Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and a configurable set of peripherals such as timers, ADC, PWM, and communication interfaces. The PIC18 family is Microchip's high-performance 8-bit architecture, sitting above the baseline PIC16 line with a 16-bit instruction word and an enhanced instruction set optimized for compiled C code, wider peripheral integration, and richer interrupt handling. Within the PIC taxonomy, the PIC18LF1330 belongs to the PIC18F1xxx mid-range group, featuring nanoWatt technology for low-power sleep modes suitable for battery-driven applications.
Key features include an integrated 10-bit ADC, multiple PWM channels, hardware USART, and nanoWatt power management with multiple idle/sleep modes. The 28-pin QFN package with exposed pad provides improved thermal dissipation and a compact footprint for space-constrained designs, while the 40 MHz maximum clock supports deterministic real-time control loops in motor, lighting, and sensor applications.
The PIC18LF1330 architecture uses a Harvard bus design with separate Flash and RAM paths, a 16-bit instruction set, and a hardware multiplier. Its nanoWatt technology provides reduced power consumption during idle states, making it suitable for battery-powered or energy-harvesting applications where sleep current is critical to overall system lifetime.
Typical applications include industrial control, sensor interfacing, low-cost motor drives (BLDC/stepper), LED lighting controllers, home appliances, and consumer white goods. The combination of Flash memory, low-voltage operation, and a compact QFN footprint makes it well suited for cost-sensitive embedded products.
When designing with this MCU, ensure adequate decoupling (100 nF plus bulk) on VDD, tie the MCLR pin through a proper pull-up configuration, and respect the in-circuit serial programming (ICSP) layout rules if firmware updates are required in production. Programming is supported via MPLAB X IDE with MPLAB XC8 compilers and the PICkit 5 in-circuit debugger.
This page consolidates distributor pricing, drop-in alternatives, and practical design considerations that are not present in the bare manufacturer datasheet, giving procurement and engineering teams a single authoritative source for evaluating the PIC18LF1330-I/ML.
Drop-in alternatives for PIC18LF1330-I/ML — 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 PIC18LF1330-I/ML (same form factor and footprint) — differing in Core Architecture, Operating Temperature Range, Operating Voltage Range, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F1330-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF1320-I/ML
✅ Drop-In✓ In Stock
$3.12 / Unit
View Datasheet →PIC18LF1220-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF1330-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit (PIC18) |
| Program Memory Size | 8 KB (4K x 16) Flash |
| RAM Size | 256 bytes |
| Maximum CPU Frequency | 40 MHz |
| Operating Voltage Range | 2.0 V to 5.5 V (LF low-voltage variant) |
| I/O Pins | 16 |
| Package | 28-pin QFN (6x6 mm) with exposed pad |
| ADC | 10-bit |
| PWM Channels | Yes (multiple) |
| Communication Interfaces | USART, I2C, SPI |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40 C to +85 C (I = Industrial) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Power-Saving Modes | nanoWatt technology (multiple idle/sleep modes) |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
PIC18LF1330-I/ML Pin Configuration
| Pin 1 | RA0/AN0 — I/O / ADC input |
| Pin 2 | RA1/AN1 — I/O / ADC input |
| Pin 3 | RA2/AN2 — I/O / ADC input |
| Pin 4 | RA3/AN3 — I/O / ADC input |
| Pin 5 | RA4 — I/O |
| Pin 6 | RA5 — I/O |
| Pin 7 | RA6 — I/O |
| Pin 8 | RA7 — I/O |
| Pin 9 | VSS — Ground |
| Pin 10 | OSC1 — Crystal/clock input |
| Pin 11 | OSC2 — Crystal output |
| Pin 12 | RC0 — I/O |
| Pin 13 | RC1 — I/O |
| Pin 14 | RC2 — I/O |
| Pin 15 | RC3 — I/O |
| Pin 16 | RC4 — I/O |
| Pin 17 | RC5 — I/O |
| Pin 18 | RC6 — I/O |
| Pin 19 | RC7 — I/O |
| Pin 20 | VSS — Ground |
| Pin 21 | RB0 — I/O |
| Pin 22 | RB1 — I/O |
| Pin 23 | RB2 — I/O |
| Pin 24 | RB3 — I/O |
| Pin 25 | RB4 — I/O |
| Pin 26 | RB5 — I/O |
| Pin 27 | RB6 — I/O |
| Pin 28 | RB7 — I/O |
| Pin EP | Exposed Pad — Thermal pad - tie to VSS (per datasheet) |
Typical Applications
PIC18LF1330-I/ML is suitable for 6 applications: Industrial Sensor Interface, Low-Voltage Motor Control (BLDC/Stepper), LED Lighting Controllers, Home Appliance Control, Battery-Powered IoT Edge Nodes, Consumer White Goods User Panels.
Industrial Sensor Interface
The PIC18LF1330-I/ML fits industrial sensor-interface designs because its 10-bit ADC, USART, I2C and SPI peripherals connect directly to common analog and digital sensors without external glue logic. The 8 KB Flash and 256 B RAM support C-compiled firmware for calibration tables, linearization, and Modbus-style protocol stacks typical in 4-20 mA loop replacement or environmental monitoring modules. The 2.0V to 5.5V LF range covers both 3.3V and 5V sensor rails, and the 28-pin QFN keeps the PCB compact behind a sensor housing. Estimated active current of ~10 mA at 40 MHz and sub-microamp sleep current with nanoWatt modes allow duty-cycled sensor nodes for battery or energy-harvesting use.
Recommended
Low-Voltage Motor Control (BLDC/Stepper)
The PIC18LF1330-I/ML suits small BLDC and stepper motor controllers because it integrates multiple PWM channels with hardware fault input and a 40 MHz CPU delivering deterministic commutation timing for sensorless or hall-sensor-based FOC. The LF 2.0V to 5.5V supply range allows direct 3.3V operation from a single Li-ion cell, while the 28-pin QFN exposes enough I/O for three-phase gate drivers, hall inputs, and a current-sense amplifier. Estimated: 16 I/O plus 10-bit ADC support current-shunt monitoring and back-EMF sampling at typical 20 kHz PWM rates; nanoWatt sleep allows holding torque release on standby for battery-driven motion.
Recommended
LED Lighting Controllers
The PIC18LF1330-I/ML is well matched to intelligent LED lighting controllers because its PWM channels drive constant-current LED drivers directly, while the ADC samples light-level or color sensors for closed-loop dimming and CCT tuning. The 8 KB Flash holds DMX8 or DALI-light protocol stacks plus color-mixing algorithms; 256 B RAM handles per-channel PWM duty state without DMA. Estimated: at 3.3V VDD with all PWMs active the part draws under 15 mA, and the LF variant enables 2-cell battery or USB-powered accent lighting with nanoWatt sleep between commands.
Recommended
Home Appliance Control
The PIC18LF1330-I/ML fits white-goods and small-appliance controllers because its 16 I/O, ADC and PWM support user-interface keypads, indicator LEDs, triac-fired loads, and temperature probes in a single chip. The -40 C to +85 C industrial temperature range meets kitchen and laundry thermal environments, while the 8 KB Flash stores appliance state machines and safety timing. Estimated: triac zero-cross detection plus opto-isolated interrupt inputs can be implemented within the available I/O budget; nanoWatt idle helps meet standby regulations below 0.5 W.
Recommended
Battery-Powered IoT Edge Nodes
The PIC18LF1330-I/ML suits duty-cycled IoT edge nodes because the LF 2.0V to 5.5V range allows direct connection to single- or dual-cell battery chemistries, while nanoWatt technology drops quiescent current to the sub-microamp range in sleep. The 8 KB Flash fits small sensor-hub or BLE-beacon-style firmware, and the 28-pin QFN keeps board area minimal inside sealed sensor enclosures. Estimated: at 1 percent duty cycle (10 ms active per second) the average current can stay under 100 uA from a 3 V coin cell, extending battery life into multi-year ranges.
Recommended
Consumer White Goods User Panels
The PIC18LF1330-I/ML drives consumer white-goods user-interface panels because its 16 I/O can scan keypads and matrix displays, while the ADC reads capacitive-touch or rotary-encoder analog outputs. The 5V-tolerant operation aligns with legacy appliance power rails, and the 28-pin QFN keeps the controller PCB slim behind the front bezel. Estimated: PWM timers drive LED-backlit icons and buzzer tones without external logic; the LF variant allows direct 3.3V USB-powered service-port firmware updates using ICSP.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF1330-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F1330-I/ML | PIC18LF1320-I/ML | PIC18LF1220-I/ML |
|---|---|---|---|---|
| Package | 28-pin QFN (6x6 mm) with EP | 28-pin QFN (6x6 mm) - same | 28-pin QFN (6x6 mm) - same | 28-pin QFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage Range | 2.0 V to 5.5 V (LF) | 4.2 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Flash Memory | 8 KB | 8 KB | 8 KB | 2 KB |
| RAM Size | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| I/O Pins | 16 | 16 | 16 | 16 |
| Motion / PWM Peripherals | Enhanced PWM with motion-feedback | Same as LF1330 | Standard PWM only | Standard PWM only |
Key Differentiators
- Wider operating voltage range than PIC18F1330 standard variant (vs PIC18F1330-I/ML)
- Enhanced PWM and motion-feedback peripherals vs PIC18LF1320 (vs PIC18LF1320-I/ML)
- Same package and footprint as PIC18LF1320/PIC18LF1220 (vs PIC18LF1220-I/ML)
Design Notes
Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the VDD pins, plus a 4.7 uF to 10 uF bulk capacitor on the same node. The exposed thermal pad (EP) on the 28-pin QFN must be soldered to a grounded copper pour of at least 1 square inch to keep junction temperature within the -40 C to +85 C industrial range under full 40 MHz CPU load. Estimated active current at 40 MHz and 3.3V is approximately 11 mA; nanoWatt idle drops this below 5 uA with peripherals disabled.
Place the ICSP programming header on a separate connector footprint, not on production I/O, and route PGC/PGD traces as short, parallel pairs away from switching nodes. If the design uses an external crystal, place the crystal within 5 mm of OSC1/OSC2 with a ground guard ring; otherwise use the internal oscillator with OSCTUNE calibration to free two pins. The 28-pin QFN EP must be tied to VSS with at least four thermal vias under the pad to the inner ground plane.
Do not assume 5V tolerance on the LF variant - all I/O on the PIC18LF1330 are 5.5V tolerant on VDD rails, but analog inputs must not exceed VDD by more than 0.3V. Avoid leaving the MCLR pin floating; tie it through a 10 kohm pull-up to VDD and place the ICSP reset capacitor near the pin. If migrating from PIC18F1330 to the LF1330, verify any 5V-only analog sensor on a shared ADC line still meets the VDD minus 0.3V headroom rule at 3.3V operation.
Compliance Information
RoHS and lead-free confirmed by Microchip product page; REACH and conflict-minerals declarations available on the Microchip compliance portal. Not AEC-Q100 qualified - use PIC18Fxx Q1 variants for automotive.
