PIC16LF18313-E/SN - 8-bit 32MHz MCU 3.5KB Flash 8-SOIC | Microchip
MPN: PIC16LF18313-E/SN ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.37 | $1.37 |
| 10 | $1.23 | $12.30 |
| 100 | $1.05 | $105.00 |
| 500 | $0.94 | $470.00 |
| 1,000 | $0.85 | $850.00 |
PIC16LF18313-E/SN Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, timers, analog peripherals, and digital I/O. The PIC16F family is built on Microchip's enhanced mid-range 8-bit RISC architecture, which executes instructions in a single cycle except for program branches, giving a deterministic 32MHz throughput with low interrupt latency. The PIC16LF18313 specifically belongs to the PIC16(L)F18313/18323 sub-family, which adds Core Independent Peripherals (CIPs), Configurable Logic Cells (CLC), and Peripheral Pin Select (PPS) for flexible signal routing without CPU intervention.
Key features include up to 32MHz internal oscillator, 256 bytes of EEPROM for parameter storage, a 10-bit ADC, two PWM/Capture/Compare modules, and UART/SPI/I2C serial interfaces routed via PPS. The 'LF' supply range of 2.3V-3.6V makes it ideal for single-cell lithium or 2x AA battery systems, while the 8-pin SOIC footprint is the most common small-outline IC package for through-hole-compatible hand-soldered prototypes.
The -E suffix denotes the extended -40C to +125C industrial operating temperature range, and /SN indicates the 3.90mm-width SOIC-8 package supplied in tube. This combination is well-suited to harsh-environment industrial sensors, automotive body controllers, and outdoor IoT nodes where temperature swings exceed commercial grade.
Typical applications include low-power IoT sensor nodes, battery-powered remote controls, LED lighting controllers, and compact motor drivers. The integrated 10-bit ADC with internal voltage reference simplifies analog signal acquisition without external precision references.
When designing with this MCU, observe the 2.3V-3.6V supply window for the LF variant and ensure the supply decoupling (0.1uF minimum) is placed within 2-3mm of VDD. The PPS feature requires firmware configuration to remap peripherals, which must be set immediately after reset. ISP via PGED/PGEC pins enables in-circuit programming without removing the MCU from the board.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16LF18313-E/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 PIC16LF18313-E/SN (same form factor and footprint) — differing in Package, ADC, Operating Temperature, I/O Pins, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18313-E/SN
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF18313-I/SN
✅ Drop-In✓ In Stock
$0.78 / Unit
View Datasheet →PIC16LF18313-E/RF
✅ Drop-In✓ In Stock
$0.7 / Unit
View Datasheet →PIC16LF18313-E/P
✅ Drop-In✓ In Stock
$0.72 / Unit
View Datasheet →PIC16F18313-I/SN
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.71 / Unit
View Datasheet →PIC16LF18313-E/SN Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC enhanced mid-range |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data Memory (SRAM) | 256 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Supply Voltage Range (LF) | 2.3 V to 3.6 V |
| Operating Temperature Range | -40 C to +125 C (E grade) |
| Package | 8-SOIC (3.90 mm width) |
| Pin Count | 8 |
| ADC | 10-bit, multiplexed channels |
| PWM Modules | 2 (10-bit/CCP/ECCP) |
| Timers | 4 (8-bit and 16-bit selectable) |
| Communication Interfaces | UART/SPI/I2C via PPS |
| Peripheral Pin Select (PPS) | Yes |
| Low-Power Mode | XLP (eXtreme Low Power, nanoWatt) |
| I/O Pins | 6 (with PPS remap) |
| RoHS Status | Compliant |
PIC16LF18313-E/SN Pin Configuration
| Pin 1 | VDD — Positive supply voltage (2.3V-3.6V) |
| Pin 2 | RA5 — Bidirectional I/O with PWM and interrupt |
| Pin 3 | RA4 — Bidirectional I/O with PWM and interrupt |
| Pin 4 | RA3/MCLR — Input only, master clear reset with internal pull-up |
| Pin 5 | RA2 — Bidirectional I/O with analog input and interrupt |
| Pin 6 | RA1/ICSPCLK — Bidirectional I/O, ICSP clock programming pin |
| Pin 7 | RA0/ICSPDAT — Bidirectional I/O, ICSP data programming pin |
| Pin 8 | VSS — Ground reference |
Typical Applications
PIC16LF18313-E/SN is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Remote Control and Consumer Interface, LED Lighting and Backlight Control, Industrial Sensor Signal Conditioning, Automotive Body Electronics, Smart Home and Wireless Sensor Edge Nodes.
Battery-Powered IoT Sensor Nodes
The PIC16LF18313-E/SN's XLP nanoWatt sleep currents (down to 20 nA typical) and 2.3V-3.6V LF supply window make it purpose-built for IoT sensor nodes running from a single CR2032 or 2x AA cells. A 32MHz execution speed lets the MCU wake, sample sensors via its 10-bit ADC, run median/averaging, transmit over UART/I2C, and return to sleep inside a 1 ms active window. The 8-SOIC footprint keeps the BOM compact for coin-cell form factors, while 3.5 KB Flash accommodates typical LoRaWAN or BLE beacon firmware shells.
Recommended
Remote Control and Consumer Interface
Handheld remote controls benefit from the PIC16LF18313-E/SN's low supply range and PWM peripherals for IR LED modulation, capacitive touch wake on a single RA pin, and tiny SOIC-8 footprint. The 32MHz core runs protocol stacks for NEC, RC5, or SIRC IR transmission at carrier-accurate timing. With 256 bytes of EEPROM, the device can store paired device IDs without external memory. Sleep currents in single-digit uA extend AAA-cell battery life to several years of standby.
Recommended
LED Lighting and Backlight Control
The PIC16LF18313-E/SN integrates two PWM/Capture/Compare peripherals capable of driving high-resolution LED dimming with CC/CV control and dithering for 16-bit effective resolution. Its 10-bit ADC monitors LED current via sense resistor and regulates brightness in closed loop. The 2.3V-3.6V LF range pairs well with single-cell lithium LED drivers. CLC blocks enable hardware-based fault detection without CPU intervention, supporting ASIL-friendly LED driver architectures.
Recommended
Industrial Sensor Signal Conditioning
The -E temperature grade (-40C to +125C) of PIC16LF18313-E/SN qualifies it for harsh industrial environments such as factory automation cabinets, HVAC controllers, and process sensor front-ends. Its 10-bit ADC with internal voltage reference handles 4-20mA loop interfaces through a shunt resistor, while the Enhanced PWM drives valve actuators and proportional solenoid drivers. The PIC16F family CIP (Core Independent Peripheral) architecture delivers deterministic interrupt response critical to safety controllers.
Recommended
Automotive Body Electronics
The PIC16LF18313-E/SN's -40C to +125C operating range and SOIC-8 PCB-friendly footprint suit automotive body modules like seat controllers, mirror adjusters, and accessory multiplexers where 8-bit cost is paramount. The 10-bit ADC reads potentiometers for trim controls while PWM modules drive small DC motor bridges via external FETs. Combined with AEC-Q100 considerations, the part applies to non-safety body domains. Designers should validate design margin against AEC stress profiles for production deployment.
Recommended
Smart Home and Wireless Sensor Edge Nodes
PIC16LF18313-E/SN serves as an edge MCU in smart-home sensor hubs where it pre-processes analog/digital signals before forwarding to a Zigbee or BLE radio module via UART/SPI. The PPS feature lets designers remap peripheral I/O to any RA pin, simplifying PCB layout when the wireless module footprint is fixed. Sleep currents in nanoWatt range extend coin-cell life to the typical 5-7 year smart-sensor replacement cycle, while the wide -40C to +125C E-grade supports outdoor and attic installations.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18313-E/SN — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18313-E/SN | PIC16LF18313-I/SN | PIC16LF18313-E/RF | PIC16LF18313-E/P | PIC16F18313-I/SN |
|---|---|---|---|---|---|---|
| Package | 8-SOIC (SN) | 8-SOIC (SN) - same | 8-SOIC (SN) - same | 8-UDFN (RF) - different footprint | 8-PDIP (P) - different footprint | 8-SOIC (SN) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | ||
| Supply Voltage Range | 2.3V to 3.6V | 2.3V to 5.5V | 2.3V to 3.6V | 2.3V to 5.5V | ||
| Temperature Grade | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | ||
| Flash Memory | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | ||
| SRAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | ||
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | ||
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | ||
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes |
Key Differentiators
- XLP nanoWatt sleep-current technology (vs PIC16F18313-E/SN)
- Extended -40C to +125C industrial temperature range (vs PIC16LF18313-I/SN)
- Peripheral Pin Select for layout flexibility (vs PIC16F1823-E/SN)
Design Notes
Place a 100 nF decoupling capacitor within 3 mm of VDD pin 1, with a 10 uF bulk capacitor on the same node to handle inrush during RF transmission bursts. For battery-powered designs, the MCP1702 2.5V LDO or MCP1640 boost converters pair well with the LF supply range. Power-rail sequencing should ensure VDD reaches at least 2.3V before the MCLR pin releases to avoid spurious reset states.
Route the ICSP programming pins (RA0/ICSPDAT and RA1/ICSPCLK) to a 2-pin header or test pad accessible for in-circuit programming. Keep analog traces away from RA4/RA5 if these are used as digital I/O to minimize coupling. The exposed pad is not present on SOIC-8, so the part can be placed on a 2-layer PCB with standard 0.1 inch pitch, hand-solder-friendly footprint.
Do not exceed VDD of 3.6V on the LF variant - this is the most common failure mode when a 5V supply accidentally powers the design. Configure MCLR as either input (reset) or digital-only I/O, but never leave it floating - the internal pull-up is weak and noise on the MCLR pin can cause intermittent resets. Per the datasheet, RA3 is input-only and cannot drive external loads.
When the 10-bit ADC samples at high rates, add a 10 nF capacitor on the analog input pin to filter source-impedance noise. Estimated: with a 10 kohm source impedance, the ADC sample-and-hold acquisition time is approximately 2-3 us, supporting conversion rates up to 50 ksps. For higher-frequency signals, lower the source impedance to 1 kohm or add an external op-amp buffer.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - for automotive designs, design margin must be validated against AEC stress profiles; consider PIC16F18313-E/SN with formal qualification if required
