PIC16LF18313-I/P - 8-bit 32MHz XLP MCU 3.5KB Flash | Microchip
MPN: PIC16LF18313-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.32 | $1.32 |
| 10 | $1.18 | $11.80 |
| 100 | $1.04 | $104.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.81 | $810.00 |
PIC16LF18313-I/P Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory, and a mix of analog and digital peripherals on one die. Within the broader taxonomy, an MCU belongs to embedded processors -> microcontrollers -> 8-bit microcontrollers. The PIC16F18313 specifically uses the enhanced mid-range PIC16 core with a 14-bit instruction word, supporting Peripheral Pin Select (PPS) for flexible signal routing and Core Independent Peripherals (CIPs) such as CLC, CWG, CCP and PWM. This combination allows hardware-implemented logic and timing functions that offload the CPU and reduce active-mode current draw.
Key features include eXtreme Low Power (XLP) technology with typical sleep currents in the nanoamp range, a 10-bit ADC with computation, a configurable Complementary Waveform Generator (CWG), and multiple communication interfaces. The 8-pin PDIP form factor supports through-hole assembly for prototyping, hobby, education, and low-volume production environments where socketed or hand-soldered parts are preferred over surface-mount.
The PIC16LF18313-I/P is intended for general-purpose embedded control in industrial automation, consumer electronics, IoT edge nodes, sensor conditioning, and battery-powered portable products. Designers select this part when a small 8-pin footprint, ultra-low sleep current, and rich peripheral set are needed without the overhead of a 32-bit ARM core. Microchip's MPLAB X IDE, XC8 compiler, and PICkit programmers provide a complete development ecosystem. This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the bare manufacturer datasheet, helping engineers evaluate the part quickly against PIC16F and PIC12/16 family alternatives.
Drop-in alternatives for PIC16LF18313-I/P — 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 PIC16LF18313-I/P (same form factor and footprint) — differing in ADC, Package, I/O Pins, Program Memory (Flash), Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18313-I/P
✅ Drop-In✓ In Stock
$0.79 / Unit
View Datasheet →PIC16LF18313-E/P
✅ Drop-In✓ In Stock
$0.72 / Unit
View Datasheet →PIC16F18313-I/P
✅ Drop-In✓ In Stock
$0.79 / Unit
View Datasheet →ATtiny85-20PU
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF18313-I/P Maximum Ratings & Electrical Characteristics
| Core | PIC16 enhanced mid-range 8-bit |
| Instruction Word | 14-bit |
| Max CPU Speed | 32 MHz |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data SRAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| Package | 8-pin PDIP (through-hole) |
| Mounting Type | Through-Hole |
| Pin Count | 8 |
| I/O Pins | 6 |
| ADC | 10-bit |
| Low-Power Technology | eXtreme Low Power (XLP) |
| RoHS Status | Compliant |
| Peripheral Pin Select (PPS) | Yes |
PIC16LF18313-I/P Pin Configuration
| Pin 1 | /MCLR — Master Clear (reset) input, active low |
| Pin 2 | RA2 — Bidirectional I/O with PPS support |
| Pin 3 | RA1 — Bidirectional I/O with PPS support |
| Pin 4 | RA0 — Bidirectional I/O with PPS support |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RA4 — Bidirectional I/O with PPS support |
| Pin 7 | RA3 — Bidirectional I/O with PPS support |
| Pin 8 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
Typical Applications
PIC16LF18313-I/P is suitable for 6 applications: Battery-Powered IoT Sensor Node, Industrial Control and Automation, Consumer Electronics Remote Control, Portable Health and Wearable Devices, Hobbyist and Education Prototyping, Smart Home Sensor Hub.
Battery-Powered IoT Sensor Node
The PIC16LF18313-I/P is well suited to coin-cell or 2x AA battery sensor nodes because its eXtreme Low Power (XLP) sleep current is in the nanoamp range and the 1.8 V minimum supply lets a CR2032 cell operate down to its end-of-life voltage. The on-chip 10-bit ADC reads temperature, light, or motion sensors, while Core Independent Peripherals (CLC, NCO, CWG) handle pulse counting and PWM-driven indicators without waking the CPU. Designers typically use Sleep mode between samples and rely on the watchdog or an external interrupt to wake the MCU every few seconds, achieving years of battery life on a single coin cell in thermostats, asset trackers, and remote environmental monitors.
Recommended
Industrial Control and Automation
In factory automation, the PIC16LF18313-I/P serves as a low-cost logic controller for sensor conditioning, simple PID loops, and actuator driving where a full PLC is overkill. The Peripheral Pin Select (PPS) remaps UART, SPI, or PWM to any digital pin, simplifying PCB layout when board space is constrained. With 32 MHz CPU speed and a 10-bit ADC, it can sample 4-20 mA loops at sufficient rates for thermal and pressure control, and the Complementary Waveform Generator (CWG) drives half-bridges for solenoid or small motor control. Industrial temperature grade (I suffix, -40 to +85 C) supports control cabinet and outdoor enclosures.
Recommended
Consumer Electronics Remote Control
TV and audio system remote controls benefit from the PIC16LF18313-I/P's low sleep current and on-chip peripherals that handle IR modulation through the CWG without external timer ICs. A typical implementation uses Sleep mode with wake-on-keypad, sends NEC or RC5 IR frames via PWM, and runs from two AAA cells for years without replacement. The 8-pin PDIP form factor is friendly to through-hole keypad designs and is well suited to high-volume consumer plastic enclosures where wave soldering is used.
Recommended
Portable Health and Wearable Devices
Wearable fitness bands and portable medical devices leverage the PIC16LF18313-I/P for heart-rate sensing, step counting, and Bluetooth Low Energy companion control (via UART-bridged module). The device's nanoamp Sleep current and fast wake-up time (microseconds from Sleep to full 32 MHz operation) maximize battery life between user interactions. With hardware CIPs, the MCU can sample a photoplethysmography (PPG) sensor and compute pulse intervals in the background while the CPU sleeps, only waking to update BLE notifications.
Recommended
Hobbyist and Education Prototyping
The 8-pin PDIP package of the PIC16LF18313-I/P is a favorite for hobbyists, makers, and university embedded courses because it sits in a standard breadboard and accepts hand-soldering. The MPLAB X IDE and XC8 compiler are free, and PICkit programmers are inexpensive, enabling students to learn GPIO, ADC, PWM, and interrupt-driven firmware on real hardware. The XLP features also make it a practical choice for solar- or battery-powered projects such as weather stations, plant monitors, and small robotics where low energy consumption is essential.
Recommended
Smart Home Sensor Hub
In smart-home sensor hubs, the PIC16LF18313-I/P aggregates data from door/window switches, PIR motion detectors, and temperature sensors, then forwards the data to a Zigbee, LoRa, or Wi-Fi module over UART. Its 32 MHz core handles protocol framing without bottleneck, while XLP Sleep mode keeps standby power under 1 microampere per node. The on-chip EEPROM stores configuration and last-known-state data through power cycles, avoiding external NVM and reducing BOM cost in multi-room deployments.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18313-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18313-I/P | PIC16LF18313-E/P | ATtiny85-20PU |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-8 | PDIP-8 - same | PDIP-8 - same | PDIP-8 - same |
| Supply Voltage Range | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 2.7 V to 5.5 V |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 20 MHz |
| Program Flash | 3.5 KB (2K x 14) | 3.5 KB (2K x 14) | 3.5 KB (2K x 14) | 8 KB |
| Data SRAM | 256 bytes | 256 bytes | 256 bytes | 512 bytes |
| Data EEPROM | 256 bytes | 256 bytes | 256 bytes | 512 bytes |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C |
| Core Architecture | PIC16 enhanced mid-range (14-bit) | PIC16 enhanced mid-range (14-bit) | PIC16 enhanced mid-range (14-bit) | AVR 8-bit RISC |
Key Differentiators
- Lowest minimum supply voltage in the family (vs PIC16F18313-I/P)
- Expanded temperature grade option in same package (vs PIC16LF18313-E/P)
- More Flash memory with cross-vendor toolchain (vs ATtiny85-20PU)
Design Notes
Estimated: at VDD = 3.3 V, 32 MHz clock, and all peripherals active, the PIC16LF18313-I/P draws roughly 4 mA. Switching to 1 MHz IDLE mode drops consumption below 0.5 mA, and Sleep mode (CPU off, peripherals off) drops to under 1 uA. For battery designs, route all wake-up sources (interrupt-on-change, watchdog timer, or external interrupt) to RA pins so the CPU only wakes when a real event occurs.
Place a 100 nF decoupling capacitor as close as physically possible to the VDD pin (pin 8) and a bulk 10 uF ceramic or tantalum capacitor at the board's power entry. The /MCLR pin (pin 1) should be tied to VDD through a 10 kohm pull-up resistor and a 100 nF capacitor to VSS for brown-out reset immunity; do not leave /MCLR floating.
Do not connect the LF variant to a 5 V supply; the absolute maximum VDD is 3.6 V per Microchip datasheet 40001799F. Always disable the JTAG pins in configuration words if not used, otherwise RA0/RA1 default to debug functions and cannot be used as GPIO. The PIC16LF18313-I/P datasheet also notes that PPS must be unlocked by writing to PPSLOCK before re-mapping digital peripherals; failure to lock after configuration can cause intermittent peripheral behaviour on reset.
Route the ICP (In-Circuit Programming) signals (ICSPCLK/ICSPDAT) to dedicated test points or a 2x3 header so PICkit programmers can attach without interfering with the rest of the PCB. Keep the 32 MHz crystal traces (if using an external resonator instead of the internal HFINTOSC) short and guard them with a ground ring to minimise EMI pickup, which can corrupt ADC readings in low-signal sensor applications.
Compliance Information
RoHS and REACH compliant per Microchip product page; -I suffix denotes industrial temperature grade -40 to +85 C. AEC-Q100 qualification not applicable for non-automotive parts; automotive users should consider the PIC16F18313-E/P or consult Microchip automotive MCU portfolio.
