PIC18F1330-I/SS - 8-bit MCU 8KB Flash 40MHz | Microchip Technology
MPN: PIC18F1330-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.11 | $3.11 |
| 10 | $2.95 | $29.50 |
| 100 | $2.71 | $271.00 |
| 500 | $2.4 | $1,200.00 |
| 1,000 | $2.1 | $2,100.00 |
PIC18F1330-I/SS Overview
An 8-bit microcontroller is a single-chip computer that combines an 8-bit CPU core, on-chip program memory (ROM/Flash), data memory (RAM), non-volatile storage (EEPROM), and a configurable set of digital and analog peripherals. The PIC18F1330 belongs to Microchip's PIC18 hierarchy: PIC18 -> 8-bit flash MCU -> nanoWatt XLP family -> enhanced PWM + analog comparator family. Compared with classic PIC16 devices, PIC18 adds an 8-level hardware stack, extended instruction set, linear memory map, and self-programming support.
Key features include a 10-bit A/D converter with up to 4 input channels, 3 analog comparators with programmable references, an enhanced 14-bit PWM module designed for motor control, an internal 8 MHz oscillator selectable via configuration fuses, a USART with LIN bus support, a 16-bit timer/counter plus additional 8-bit timers, nanoWatt XLP low-power modes (sleep currents below 1 uA typical), and an in-circuit serial programming (ICSP) interface. The integrated PWM module and analog comparators make this device particularly suited to closed-loop brushless-DC and switched-reluctance motor control.
Operating voltage ranges from 4.2 V to 5.5 V, with the -I (Industrial) suffix giving an operating temperature range of -40 C to +85 C. The device is offered in three package options (18-pin PDIP, 20-pin SOIC/SSOP and 28-pin QFN) so designers can scale up to more I/O without rewriting firmware.
Typical applications include BLDC and PMSM motor drives, fan/pump controllers, low-end HVAC damper actuators, sensorless brushless-DC blowers, appliance inverter boards, and LIN-slave nodes in automotive body electronics. The combination of nanoWatt XLP power profile and enhanced PWM makes it a fit-and-forget choice for always-on mains-derived appliances.
When laying out the PCB, dedicate a 100 nF decoupling capacitor directly between VDD and VSS as close to the pins as possible, keep the MCLR pull-up within 1 inch of the pin, and route the analog AVCC/AVSS pair as a Kelvin pair to the analog comparator inputs.
This page consolidates pricing, drop-in pin-compatible alternatives and practical design guidance that go beyond the raw datasheet, so engineers can confirm availability and a substitution plan at the same time.
Drop-in alternatives for PIC18F1330-I/SS — 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 PIC18F1330-I/SS (same form factor and footprint) — differing in Package, Timers, Core Architecture, Internal Oscillator, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F1230-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F1320-I/SS
✅ Drop-In✓ In Stock
$0.89 / Unit
View Datasheet →PIC18F1220-I/SS
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC18F1220T-I/SS
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC18F1220-H/SS
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC18F1220-E/SS
✅ Drop-In✓ In Stock
$2.84 / Unit
View Datasheet →PIC18F1330-I/SS Maximum Ratings & Electrical Characteristics
| Manufacturer | Microchip Technology |
| Series | PIC 18F |
| Core Processor | PIC18 (Enhanced RISC) |
| Core Size | 8-bit |
| Max CPU Speed | 40 MHz (10 MIPS) |
| Program Memory Type | Flash |
| Program Memory Size | 8 KB (4K x 16) |
| RAM Size | 256 bytes |
| EEPROM Size | 128 bytes |
| Number of I/O | 16 |
| A/D Converter | 10-bit, up to 4 channels |
| Analog Comparators | 3 (with programmable reference) |
| PWM Module | Enhanced 14-bit motor-control PWM |
| USART | 1 (LIN-capable) |
| Timers | 1 x 16-bit + 2 x 8-bit |
| Internal Oscillator | 8 MHz (factory calibrated, configurable) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 20-pin SSOP |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC18F1330-I/SS Pin Configuration
| Pin 1 | MCLR/VPP — Master clear (reset) input / programming voltage |
| Pin 2 | RA0/AN0 — Digital I/O / analog input 0 |
| Pin 3 | RA1/AN1 — Digital I/O / analog input 1 |
| Pin 4 | RA2/AN2/VREF- — Digital I/O / analog input 2 / ADC VREF- |
| Pin 5 | RA3/AN3/VREF+ — Digital I/O / analog input 3 / ADC VREF+ |
| Pin 6 | RA4 — Digital I/O |
| Pin 7 | RA5/AN4 — Digital I/O / analog input 4 |
| Pin 8 | VSS — Ground |
| Pin 9 | OSC1/CLKI/RA7 — Crystal input / external clock / digital I/O |
| Pin 10 | OSC2/CLKO/RA6 — Crystal output / clock output / digital I/O |
| Pin 11 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output / clock input |
| Pin 12 | RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator input / CCP2 PWM |
| Pin 13 | RC2/CCP1 — Digital I/O / CCP1 PWM output |
| Pin 14 | RC3 — Digital I/O |
| Pin 15 | RC4 — Digital I/O |
| Pin 16 | RC5 — Digital I/O |
| Pin 17 | RC6/TX/CK — Digital I/O / USART TX / clock |
| Pin 18 | RC7/RX/DT — Digital I/O / USART RX / data |
| Pin 19 | VSS — Ground |
| Pin 20 | VDD — Positive supply voltage (4.2 V to 5.5 V) |
Typical Applications
PIC18F1330-I/SS is suitable for 6 applications: BLDC and PMSM Motor Control, Small Fan and Pump Controllers, Appliance Inverter Boards, LIN-Bus Automotive Body Electronics, Sensorless HVAC Damper Actuators, Low-Power Sensor Transmitters.
BLDC and PMSM Motor Control
The PIC18F1330-I/SS is designed for closed-loop sensorless BLDC and PMSM motor control. Its integrated 14-bit enhanced PWM module supports complementary outputs with programmable dead-band (typical 1-4 us), and the three analog comparators with programmable references sense back-EMF for sensorless commutation, eliminating the need for Hall-effect sensors in small fans and pumps. The 40 MHz core delivers 10 MIPS, more than enough headroom for trapezoidal or basic field-oriented control at 20 kHz PWM. The 8 KB flash fits a state-machine plus trapezoidal commutation loop with margin, while the 128 B EEPROM stores PID gains and motor-specific trim. Drop a 100 nF decoupling cap on VDD and tie MCLR through 10 kohm to VDD for clean ISP programming.
Recommended
Small Fan and Pump Controllers
PWM speed control of 12 V/24 V brushless fans and small DC pumps is a textbook fit for PIC18F1330-I/SS. The 14-bit enhanced PWM delivers fine resolution down to 0.1% duty cycle, and the 10-bit A/D samples tachometer feedback or current sense for closed-loop RPM regulation. Operating from a 5 V post-regulator, the MCU drives the gate of an external logic-level MOSFET via one of the PWM outputs, keeping the BOM small. NanoWatt XLP sleep currents below 1 uA make this part a fit-and-forget controller for always-on mains-derived appliances. Add a 10 kohm NTC thermistor to one analog channel for temperature-proportional fan curves without firmware overhead.
Recommended
Appliance Inverter Boards
Compact inverter boards inside white goods (range hoods, microwaves, small refrigeration compressors) benefit from the PIC18F1330-I/SS combination of enhanced PWM, three analog comparators and nanoWatt XLP. The comparators provide over-current and zero-cross detection without external op-amps, while the 10-bit A/D monitors rail voltages and temperature. With 256 B of RAM and 8 KB of flash, the device runs a full trapezoidal commutation loop plus UI handling (button + LED). The 20-pin SSOP keeps the controller footprint small enough to mount alongside the power stage on a 50 x 50 mm board, simplifying the BOM and reducing assembly cost. Reference the Microchip AN1078 application note for sensorless BLDC tuning parameters.
Recommended
LIN-Bus Automotive Body Electronics
The PIC18F1330-I/SS integrates an enhanced USART with LIN 1.2/2.0 slave support, making it a low-cost LIN slave node for body-electronics applications such as seat controllers, mirror adjusters, interior lighting dimmers and HVAC damper actuators. The internal 8 MHz oscillator eliminates an external crystal, shrinking the BOM. 8 KB of flash stores the LIN stack plus application code; 128 B EEPROM stores node configuration and last-known state. The -I/SS industrial grade (-40 to +85 C) covers most cabin environments; for harsher under-hood locations choose a -E grade variant. Compliance with the LIN physical layer requires an external LIN transceiver such as the MCP2003B and a 30 kohm master pull-up on the bus line.
Recommended
Sensorless HVAC Damper Actuators
Small motorized damper actuators for HVAC zoning run quietly and reliably on a PIC18F1330-I/SS sensorless BLDC controller. The enhanced 14-bit PWM with programmable dead-time drives a 3-phase bridge at 25 kHz, well above the audible range, while the analog comparators detect back-EMF zero crossings for commutation timing. The internal 8 MHz oscillator provides adequate timing accuracy for the 1 ms LIN update window and avoids external components. NanoWatt XLP sleep modes drop quiescent current below 1 uA between actuator movements, meeting Energy Star standby targets. The 20-pin SSOP fits inside a 30 mm diameter actuator housing, leaving room for the gear train and connector.
Recommended
Low-Power Sensor Transmitters
Battery-powered wireless sensor nodes (PIR occupancy sensors, CO2 transmitters, smart-locks) benefit from the PIC18F1330-I/SS nanoWatt XLP architecture. Sleep currents below 1 uA combined with a wake-on-change interrupt allow multi-year battery life from a CR2032 cell. The 10-bit A/D reads thermistor or electrochemical sensor outputs, the USART talks to a sub-GHz or BLE module, and the 8 KB flash holds the application plus a small command interpreter. The internal 8 MHz oscillator wakes the part in microseconds without waiting for an external crystal. For an extended industrial-temp deployment use a -E grade variant. A 100 nF decoupling capacitor placed within 5 mm of the VDD pin is critical for clean ADC sampling at low duty cycles.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F1330-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F1230-I/SS | PIC18F1320-I/SS | PIC18F1220-I/SS | PIC18F1220T-I/SS | PIC18F1220-H/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin SSOP | 20-pin SSOP (same) | 20-pin SSOP (same) | 20-pin SSOP (same) | 20-pin SSOP (same) | 20-pin SSOP (same) |
| Flash Memory | 8 KB | 8 KB | 8 KB | 4 KB | 4 KB | 4 KB |
| RAM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| EEPROM | 128 B | 128 B | 128 B | 128 B | 128 B | 128 B |
| CPU Speed | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS |
| Enhanced Motor-Control PWM | Yes (14-bit) | Yes (14-bit) | No (10-bit standard) | No (10-bit standard) | No (10-bit standard) | No (10-bit standard) |
| 16-bit Timer | Yes (Timer1 + Timer3) | No (8-bit timers only) | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +150 C (High-grade characterization) |
| Approx. Unit Price (1 pc) | USD 3.11 | USD 2.95 | USD 2.85 | USD 2.55 | USD 2.55 | USD 2.65 |
Key Differentiators
- Integrated 14-bit enhanced motor-control PWM (vs PIC18F1320-I/SS)
- Three analog comparators with programmable reference (vs PIC18F1230-I/SS)
- 8 KB flash + 16-bit timer (vs PIC18F1220-I/SS)
Design Notes
Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 20) and a bulk 10 uF tantalum or ceramic on the same node. For analog applications, add a separate AVCC/AVSS LDO filter (10 ohm + 10 uF) to keep ADC noise below 1 LSB at 10 bits. VDD must remain between 4.2 V and 5.5 V during flash program/erase cycles; inrush on the LDO must not sag below 4.2 V. A Schottky diode (e.g., MBRS140) on the input protects against reverse-polarity and brief over-voltage events above 5.5 V.
The MCLR pin (pin 1) must NOT be left floating; tie it to VDD through a 10 kohm resistor for normal operation. A 100 nF cap on MCLR is optional but slows reset edges, which can confuse ICSP programmers. Do not assume PIC18F1230 and PIC18F1330 firmware is interchangeable - the PIC18F1330 adds a 16-bit timer and additional configuration bits; verify CONFIG1H/Fuses. The ICSP programming pins (RB6/RB7 on 28-pin parts) become PGC/PGD; on the 20-pin SSOP these map to RA6/RA7 - confirm your programmer supports this mapping before locking the PCB layout.
Route the analog comparator inputs (RA0-RA3) as short, guarded traces and surround them with a ground pour tied to AVSS. Keep digital PWM traces (RC1/RC2) away from analog inputs by at least 3 mm to avoid capacitive coupling; this matters most at 25 kHz PWM with 1 ns edges. The 20-pin SSOP thermal pad is not present on this package; rely on the ground/VDD pours for heat spreading at 40 MHz. Place the ICSP test points or 6-pin header on a board edge so production programmers can clip on without removing the enclosure.
Compliance Information
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified; for AEC-Q100 automotive applications use a Q-graded PIC18 successor (e.g. PIC18F06Q40). Halogen-free status not explicitly published.
