PIC18LF1330-I/SS - 8KB Flash, 40MHz PIC MCU | Microchip
MPN: PIC18LF1330-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.66 | $26.60 |
| 100 | $2.37 | $237.00 |
| 500 | $2.08 | $1,040.00 |
| 1,000 | $1.84 | $1,840.00 |
PIC18LF1330-I/SS Overview
An 8-bit microcontroller (MCU) is a small, self-contained computer on a single integrated circuit containing a CPU, program memory, data memory, and peripherals. Within the broader category, PIC microcontrollers use a Harvard-architecture RISC core with separate program and data buses; the PIC18 family specifically adds 16-bit instruction width with 8-bit data path for a balance of code density and arithmetic throughput. The "LF" prefix indicates the low-voltage, low-power variant optimized for battery and portable applications.
Key features of the PIC18LF1330 include 8KB (4K x 16) of enhanced Flash program memory with self-programming capability, 256 bytes of data RAM, 256 bytes of EEPROM, and nanoWatt Technology power management with multiple low-power sleep modes. The integrated nanoWatt XLP variants consume as little as 100 nA in sleep, making them well suited for always-on battery applications. The device also integrates a 10-bit A/D converter with up to 7 input channels, a capture/compare/PWM module, an enhanced USART, two analog comparators, and a watchdog timer.
The PIC18LF1330 utilizes a 14-bit instruction word set within the PIC18 architecture and features a wide operating voltage range (2.0V-3.3V typical, supporting battery operation from a single Li-Ion cell), four oscillator options including 31 kHz internal and external crystal/PLL modes, and ICD debugging via two pins. Its 40 MHz execution speed delivers 10 MIPS performance.
Typical applications include battery-powered sensor nodes, motor control subsystems, white goods and HVAC control panels, low-end consumer electronics, industrial sensor interfaces, and remote controls. The combination of low cost, low power, and a mature toolchain (MPLAB X IDE + XC8 compiler + PICkit programmers) makes the PIC18LF1330 a strong choice for designs migrating from older PIC16 platforms that need more code space and peripherals.
When designing with this device, ensure your decoupling strategy includes a 100 nF ceramic capacitor placed within 5 mm of the VDD pins, and reserve adequate Flash endurance headroom (typically 10K erase/write cycles minimum) for field-updatable firmware. The internal oscillator can drift with temperature; if precise UART timing is required, use an external crystal.
This page consolidates distributor pricing, drop-in alternatives in the same SSOP-20 footprint, and practical design notes beyond what is found in the Microchip datasheet alone.
Drop-in alternatives for PIC18LF1330-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 PIC18LF1330-I/SS (same form factor and footprint) — differing in Package, A/D Converter, Power-Saving Modes, Program Memory (Flash), Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F1330-I/SS
✅ Drop-In✓ In Stock
$2.1 / Unit
View Datasheet →PIC18LF1330-I/SSR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF1320-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF1330T-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F1330-I/SO
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC18F1320-I/SO
✅ Drop-In✓ In Stock
$2.85 / Unit
View Datasheet →PIC18LF1330-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 8-bit RISC, Harvard |
| Instruction Word Size | 16-bit |
| Program Memory (Flash) | 8 KB (4K x 16) |
| Data RAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Operating Voltage (LF) | 2.0 V to 3.3 V |
| I/O Pins | 16 |
| Package | 20-pin SSOP (5.30 mm body) |
| Operating Temperature (I grade) | -40 C to +85 C |
| A/D Converter | 10-bit, up to 7 channels |
| PWM Modules | Yes (Enhanced CCP) |
| USART | 1x Enhanced USART |
| Comparators | 2x analog comparators |
| Watchdog Timer | Yes (WDT with dedicated RC) |
| In-Circuit Debug | Yes (ICD via 2 pins) |
| Power-Saving Modes | nanoWatt XLP sleep modes |
| RoHS Status | Compliant |
PIC18LF1330-I/SS Pin Configuration
| Pin 1 | MCLR/Vpp — Master Clear (reset) input / programming voltage |
| Pin 2 | RA0 — Digital I/O / analog input AN0 |
| Pin 3 | RA1 — Digital I/O / analog input AN1 |
| Pin 4 | RA2 — Digital I/O / analog input AN2 |
| Pin 5 | RA3 — Digital I/O / analog input AN3 |
| Pin 6 | RA4 — Digital I/O / analog input AN4 / T0CKI |
| Pin 7 | RA5 — Digital I/O / analog input AN5 |
| Pin 8 | Vss — Ground |
| Pin 9 | RA7/OSC1 — Digital I/O / crystal oscillator input |
| Pin 10 | RA6/OSC2 — Digital I/O / crystal oscillator output |
| Pin 11 | RC0 — Digital I/O / PWM output |
| Pin 12 | RC1 — Digital I/O / PWM output |
| Pin 13 | RC2 — Digital I/O / CCP1 output |
| Pin 14 | RC3 — Digital I/O / analog input AN6 |
| Pin 15 | RC4 — Digital I/O |
| Pin 16 | RC5 — Digital I/O |
| Pin 17 | RC6/TX — Digital I/O / USART TX |
| Pin 18 | RC7/RX — Digital I/O / USART RX |
| Pin 19 | Vss — Ground |
| Pin 20 | Vdd — Positive supply voltage (2.0V to 3.3V) |
Typical Applications
PIC18LF1330-I/SS is suitable for 6 applications: Battery-Powered Sensor Node, White Goods / Appliance Control Panel, Remote Control / Consumer Handheld, Industrial Sensor Interface Module, Low-End Motor Control (PWM Driver), HVAC / Thermostat Control.
Battery-Powered Sensor Node
The PIC18LF1330-I/SS is well matched to battery-powered sensor nodes because of its 2.0 V to 3.3 V supply range, nanoWatt XLP sleep modes drawing under 1 µA in deep sleep, and 10-bit ADC for sensor signal conditioning. The 40 MHz core allows quick wake-sense-transmit cycles, then returns to sleep to extend battery life to months or years on a single cell. Pair it with a low-power RF front end or wired sensor interface and you have a low-cost industrial IoT endpoint.
Recommended
White Goods / Appliance Control Panel
The PIC18LF1330-I/SS provides the right balance of cost and capability in white goods control panels, where it drives multiplexed LED or LCD indicators, scans keypad matrices, and times PWM outputs for motor control via the Enhanced CCP module. With 16 I/O pins, it can interface with relays, triac drivers, and user displays without external expanders. The industrial -40C to +85C temperature rating and SSOP-20 footprint make it suitable for washing machines, dishwashers, and HVAC thermostat panels.
Recommended
Remote Control / Consumer Handheld
The PIC18LF1330-I/SS is a fit for remote controls and consumer handhelds where 8 KB of Flash is sufficient for protocol stacks (RF4CE, BLE basic, IR RC5/RC6), keypad handling, and LCD or LED feedback. The low-voltage LF variant lets a 3 V coin cell or two AAA cells power the device for years. The 10 MIPS throughput is more than enough for protocol bit-banging and PWM-driven IR or buzzer output.
Recommended
Industrial Sensor Interface Module
The PIC18LF1330-I/SS delivers industrial-grade robustness for 24 V-loop sensor interfaces, with its SSOP-20 footprint fitting in compact DIN-rail housings. The 10-bit ADC reads 4-20 mA loop signals through a sense resistor, the USART talks to a higher-level PLC or HMI, and the PWM drives an analog output stage. With -40 C to +85 C rating and Microchip's long-term product support program, it is a stable choice for industrial sensor front-ends.
Recommended
Low-End Motor Control (PWM Driver)
The PIC18LF1330-I/SS can drive small DC and stepper motors via its Enhanced CCP PWM module and additional timer-based PWM channels. With 40 MHz performance, it generates 20 kHz PWM frequencies for quiet motor operation, and the 10-bit ADC samples current sense resistors for closed-loop torque or speed control. SSOP-20 fits on-board small appliances, robotic actuators, and consumer devices with single-axis or two-axis motion.
Recommended
HVAC / Thermostat Control
The PIC18LF1330-I/SS suits HVAC and digital thermostat control with its 10-bit ADC for temperature sensing (NTC thermistor or analog sensor), PWM output to control triac-driven heating/cooling stages, and USART for Wi-Fi/BLE module communication. Industrial temperature grade handles furnace-room ambient extremes. With 8 KB Flash, the firmware can implement PID control, scheduling, and remote protocol stacks.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF1330-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F1330-I/SS | PIC18LF1330-I/SSR | PIC18LF1320-I/SS | PIC18LF1330T-I/SS |
|---|---|---|---|---|---|
| Package | SSOP-20 (5.30 mm) | SSOP-20 (same) | SSOP-20 (same) | SSOP-20 (same) | SSOP-20 (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash Memory | 8 KB | 8 KB | 8 KB | 4 KB | 8 KB |
| Data RAM | 256 bytes | 256 bytes | 256 bytes | 128 bytes | 256 bytes |
| Maximum CPU Speed | 40 MHz (10 MIPS) | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Operating Voltage Range | 2.0 V to 3.3 V | 2.0 V to 5.5 V | 2.0 V to 3.3 V | 2.0 V to 3.3 V | 2.0 V to 3.3 V |
| I/O Pins | 16 | 16 | 16 | 16 | 16 |
| ADC | 10-bit, 7 channels | 10-bit, 7 channels | 10-bit, 7 channels | None | 10-bit, 7 channels |
| 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 |
Key Differentiators
- Low-voltage LF variant optimized for battery applications (vs PIC18F1330-I/SS)
- 10-bit ADC integrated on-chip (vs PIC18LF1320-I/SS)
- Same SSOP-20 footprint across LF/F variants (vs PIC18F1330-I/SO)
Design Notes
Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 20) and an additional bulk capacitor (1-10 µF) at the power entry. For battery applications, the LF variant draws under 1 µA in sleep mode if the watchdog timer is disabled and the internal oscillator is selected. Use the nanoWatt XLP features to extend battery life to years on a single coin cell.
Route RA6/OSC2 and RA7/OSC1 traces short and symmetric if using a crystal; keep oscillator traces away from high-current PWM or switching signals. For ICD debugging, expose the PGC/PGD lines on test pads or header; these pins may be reused as general I/O after programming if no debug is needed at runtime.
When migrating firmware between PIC18LF1330 and PIC18F1330, verify the voltage range — the LF variant must not see VDD above 3.3 V. Also confirm that the ADC reference voltage is correctly tied to VDD (default) or an external reference, since input voltages above VDD or below Vss will forward-bias ESD structures and damage the device.
The Enhanced USART can generate baud rates accurately only when the system clock is precise. For UART communication above 9600 baud, use a crystal oscillator or high-precision internal oscillator calibration; the internal RC may drift too much for reliable asynchronous serial communication at 115200 baud over industrial temperature range.
Compliance Information
RoHS compliant per Microchip product page; lead-free SSOP-20 with matte-tin plating; MSL1 moisture sensitivity; not AEC-Q100 qualified - this part is for industrial/consumer, not automotive.
