PIC16LF18313T-I/SN - 32MHz 8-bit XLP MCU 3.5KB Flash | Microchip
MPN: PIC16LF18313T-I/SN ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.1 | $1.10 |
| 10 | $0.99 | $9.90 |
| 100 | $0.86 | $86.00 |
| 500 | $0.74 | $370.00 |
| 1,000 | $0.65 | $650.00 |
PIC16LF18313T-I/SN Overview
An 8-bit PIC microcontroller is a Harvard-architecture RISC device widely used as a flexible general-purpose embedded controller. Within the broader product taxonomy it sits under microcontroller (MCU) -> 8-bit MCU -> PIC16 family -> enhanced mid-range core, and is typically selected for cost-sensitive, low-power or battery-driven designs that require rich on-chip peripherals without the complexity of a 32-bit core.
Key features of the PIC16LF18313 include a 10-bit ADC, one rail-to-rail comparator, a 5-bit DAC, two 10-bit PWMs with complementary waveform generation, Configurable Logic Cells (CLC), Numerically Controlled Oscillator (NCO), and Peripheral Pin Select (PPS) for flexible pin remapping. The device integrates 6 I/O pins, supports in-circuit serial programming (ICSP) and provides multiple communication peripherals (I2C, SPI, EUSART).
Architecturally the device uses an enhanced mid-range 14-bit instruction word core with a hardware stack, allowing deterministic interrupt latency and very low active currents (typically in the tens of uA/MIPS range). XLP technology adds deep sleep modes with nanoWatt-level standby currents, making it suitable for always-on battery applications.
Typical applications include IoT edge sensor nodes, wearable health/fitness devices, low-power remote controls, battery-backed industrial sensors, and small home/building automation modules. The 8-pin footprint is also attractive for space-constrained designs where the PIC10/PIC12 families are too small but a 14/20-pin MCU would be overkill.
When designing with this part, pay attention to the PPS configuration: most digital peripherals can be remapped to multiple pins, but analog functions are typically tied to fixed pads. Always confirm the latest MPLAB X IDE device pack and use the compiler's configuration-bit macros rather than hand-editing __CONFIG registers to avoid errata.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone - giving procurement and design engineers a single, decision-ready reference for the PIC16LF18313T-I/SN.
Drop-in alternatives for PIC16LF18313T-I/SN — 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 PIC16LF18313T-I/SN (same form factor and footprint) — differing in Package, ADC, Program Memory (Flash), Core Architecture, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF18313-I/SN
✅ Drop-In✓ In Stock
$0.78 / Unit
View Datasheet →PIC16F18313T-I/SN
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC16LF18313-E/SN
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16LF18313T-E/SN
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF18323T-I/SN
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16F18313-E/SN
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF18313T-I/SN Maximum Ratings & Electrical Characteristics
| Core | PIC16 enhanced mid-range 8-bit RISC |
| CPU Speed (Max) | 32 MHz |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data SRAM | 256 B |
| Data EEPROM | 256 B |
| Operating Voltage (LF) | 1.8 V to 3.6 V |
| Operating Voltage (F) | 2.3 V to 5.5 V |
| Low-Voltage Operation | Down to 1.8 V at 16 MHz |
| I/O Pins | 6 |
| ADC | 10-bit |
| DAC | 5-bit |
| Comparators | 1 (rail-to-rail) |
| PWM | 2 x 10-bit |
| Package | 8-pin SOIC (SN) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) |
| XLP (eXtreme Low Power) | Yes |
| RoHS Status | Compliant |
| MSL Level | MSL1 (per JEDEC J-STD-020) |
PIC16LF18313T-I/SN Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8V-3.6V) |
| Pin 2 | RA5 — Digital I/O / analog input (PPS-capable) |
| Pin 3 | RA4 — Digital I/O / analog input (PPS-capable) |
| Pin 4 | RA3/MCLR — Digital I/O / Master Clear (reset) input |
| Pin 5 | RC5 — Digital I/O (PPS-capable) |
| Pin 6 | RC4 — Digital I/O (PPS-capable) |
| Pin 7 | RC3 — Digital I/O (PPS-capable) |
| Pin 8 | VSS — Ground reference |
Typical Applications
PIC16LF18313T-I/SN is suitable for 6 applications: IoT Edge Sensor Node, Wearable Health / Fitness Device, Low-Power Remote Control (IR / RF), Battery-Backed Industrial Sensor, Home / Building Automation Module, Automotive Body Electronics (sub-system).
IoT Edge Sensor Node
The PIC16LF18313T-I/SN is purpose-built for battery-powered IoT sensor nodes where its 10-bit ADC reads analog sensors (temperature, humidity, gas), 1+2 hardware comparator enables wake-on-event, and XLP sleep modes drop average current below 1 uA. Combined with a sub-GHz or BLE module on SPI, it forms a compact 2-chip wireless node with months-to-years coin-cell life. The 8-SOIC footprint fits on coin-cell PCB footprints smaller than a CR2032 cell.
Recommended
Wearable Health / Fitness Device
Wearable fitness bands benefit from the PIC16LF18313T-I/SN's 1.8V minimum supply and nanoWatt XLP sleep current, allowing operation directly from a single Li-ion or coin-cell without boost circuitry. The 10-bit ADC reads heart-rate or motion sensors, the 5-bit DAC drives LED bias, and the comparator triggers interrupt-on-movement to wake the CPU only when needed. The 8-SOIC keeps BOM footprint tiny - critical for wristbands and patches.
Recommended
Low-Power Remote Control (IR / RF)
Battery-driven IR or sub-GHz RF remote controls are a classic PIC16LF18313T-I/SN use case: the device sleeps at <1 uA, wakes on a comparator edge from the user-input button matrix, transmits a frame via the EUSART-driven modulator or PWM, and returns to sleep. The Configurable Logic Cells (CLC) implement simple state machines in hardware, offloading the CPU entirely for sub-100 uA average current during active transmission.
Recommended
Battery-Backed Industrial Sensor
Industrial 4-20 mA loop sensors and battery-backed gas/flow meters use the PIC16LF18313T-I/SN because it operates across 1.8V-3.6V, integrates a 10-bit ADC, and runs from a single lithium cell for years. The 256-byte EEPROM stores calibration constants and runtime counters without external NVRAM, and the on-chip NCO/CLC modules handle pulse counting and rate conversion in hardware, freeing the CPU for protocol handling.
Recommended
Home / Building Automation Module
Small automation modules (light controllers, fan regulators, smart plug controllers) fit the PIC16LF18313T-I/SN's 8-SOIC footprint and integrated analog. The 10-bit ADC reads AC zero-cross or current-sense signals, the comparator implements zero-cross detection for TRIAC/SSR drive, and the 2x 10-bit PWM dims LED strings. PPS flexibility routes the I2C/SPI to the right pads for a connected radio or sensor front-end.
Recommended
Automotive Body Electronics (sub-system)
Within non-safety automotive sub-systems (interior lighting controllers, seat switches, sensor hubs) the PIC16LF18313T-I/SN offers 8-bit PIC simplicity, 32 MHz performance and PPS-driven flexible pinout. For safety-relevant or AEC-Q100 qualified designs the automotive-grade PIC16F18313T-I/SNVAO or PIC16F18313-E/SNNAHP variant is recommended instead. The wide -40C to +85C industrial range covers most cabin applications.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18313T-I/SN — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18313-I/SN | PIC16F18313T-I/SN | PIC16LF18313-E/SN | PIC16LF18313T-E/SN | PIC16LF18323T-I/SN | PIC16F18313-E/SN |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-SOIC (SN) | 8-SOIC (SN) - same | 8-SOIC (SN) - same | 8-SOIC (SN) - same | 8-SOIC (SN) - same | 8-SOIC - same | 8-SOIC (SN) - same |
| Flash Memory | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB |
| SRAM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +125C |
| Packaging | Tape & Reel | Tube | Tape & Reel | Tube | Tape & Reel | Tape & Reel | Tube |
Key Differentiators
- Same silicon, tape-and-reel format for SMT production lines (vs PIC16LF18313-I/SN (tube version))
- Low-voltage variant for 1.8V-3.6V battery designs (vs PIC16F18313T-I/SN (5V variant))
- Industrial -40C to +85C temperature range (vs PIC16LF18313-E/SN (extended -40C to +125C))
Design Notes
The PIC16LF18313T-I/SN supports XLP nanoWatt sleep modes with typical currents <1 uA. Always place a 100 nF ceramic decoupling capacitor within 3 mm of the VDD pin, plus a bulk 1-10 uF capacitor on the same node. For battery designs using a CR2032, the LF variant's 1.8V minimum is essential - the F variant cannot start below 2.3V and would brown-out on a partially depleted coin cell.
Use the Peripheral Pin Select (PPS) feature to map I2C, SPI, UART, PWM and CLC outputs to any remappable I/O pad. However, analog functions (ADC inputs, DAC output, comparator inputs) are tied to fixed pads (RAx) and cannot be remapped. Plan PCB layout so the analog sensors are routed to the fixed pads to avoid extra analog vias.
Configuration bits must be set via MPLAB X IDE configuration-bit macros (__CONFIG) rather than hand-edited bytes, to avoid hitting silicon errata. Confirm the latest device-pack revision in MPLAB X (PIC16F183xx family) covers DS40001802G errata. Do not float the MCLR/RA3 pin - use a 10 kohm pull-up to VDD to prevent spurious resets.
Keep the ICSPDAT/ICSPCLK traces (shared with RB6/RB7 on larger variants, but on this 8-pin device they map to fixed pads) short and away from switching nodes to avoid programming interference. Use a 4.7 kohm pull-up on ICSPCLK for production programming access; some debuggers require this even in-circuit.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose automotive-graded Microchip PIC18/Qxxx variant for AEC-Q100 designs. MSL1 per JEDEC J-STD-020 (unlimited floor life at <30C/85% RH).
