PIC16LF1823-I/SL - 8-bit 32MHz XLP MCU 3.5KB Flash | Microchip
MPN: PIC16LF1823-I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.65 | $1.65 |
| 10 | $1.45 | $14.50 |
| 100 | $1.25 | $125.00 |
| 500 | $1.08 | $540.00 |
| 1,000 | $0.95 | $950.00 |
PIC16LF1823-I/SL Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, Flash program memory, RAM, peripherals, and I/O onto one die, executing one instruction per cycle under a RISC architecture. The PIC16LF1823 sits within the PIC16 enhanced mid-range taxonomy: PIC16 -> mid-range 8-bit family -> PIC16F1xxx enhanced mid-range -> eXtreme Low Power (XLP) subset. The XLP designation indicates optimized sleep currents below 50 nA typical, making this part ideal for battery-powered IoT nodes, sensor peripherals, and remote controls where quiescent current dominates battery life.
Key features include the 32MHz internal oscillator (eliminating external crystals in many designs), 3.5KB Flash self-programmable memory, 128 bytes SRAM, 256 bytes EEPROM, an integrated 10-bit ADC, comparators, PWM modules, EUSART, and I2C/SPI. The XLP technology achieves sleep currents below 100 nA with retention, enabling multi-year coin-cell operation. The 14-pin SOIC package (SL suffix) provides hand-solder-friendly through-hole-compatible footprints and operates across the standard -40C to +85C industrial range, supporting consumer and industrial temperature applications.
The PIC16LF1823 uses a Harvard-architecture RISC core with a 14-bit instruction word and 200ns instruction execution at 20MHz, while the LF (low-voltage F) process variant extends operational efficiency at 1.8V-3.6V supply. Core-independent peripherals (CIPs) such as the Configurable Logic Cell (CLC), Numerically Controlled Oscillator (NCO), and Complementary Waveform Generator (CWG) offload tasks from the CPU, further reducing active-mode power consumption and enabling deterministic peripheral operation without waking the core.
Typical applications include battery-powered IoT sensor nodes, remote controls, low-power wireless peripherals, energy harvesting designs, wearable health monitors, smart metering, and consumer electronics with segmented LCD or LED interfaces. The compact 14-pin footprint suits space-constrained designs where PCB real estate is at a premium.
When designing with this part, ensure decoupling capacitors of at least 100nF are placed within 5mm of the VDD pin, and that unused I/O pins are configured as outputs to minimize shoot-through current. The LF process variant requires supply voltages strictly within 1.8V-3.6V (extended from 2.5V-3.6V typical); for designs targeting 5V operation, select the PIC16F1823 (standard F variant) instead.
This page synthesizes XAIPART distributor pricing, Microchip family drop-in alternatives (PIC16F1823-I/SL, automotive-grade variants), and practical low-power design notes not collated in the manufacturer datasheet, providing a unified engineering reference for the PIC16LF1823-I/SL.
Drop-in alternatives for PIC16LF1823-I/SL — 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 PIC16LF1823-I/SL (same form factor and footprint) — differing in Package, Operating Temperature, ADC, Core Architecture, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1823-I/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1823-I/P
✅ Drop-In✓ In Stock
$0.83 / Unit
View Datasheet →PIC16LF1823-E/SL
✅ Drop-In✓ In Stock
$0.98 / Unit
View Datasheet →PIC16LF1823-E/P
✅ Drop-In✓ In Stock
$0.64 / Unit
View Datasheet →PIC16LF1823-E/JQ
✅ Drop-In✓ In Stock
$0.65 / Unit
View Datasheet →PIC16LF1823-E/ML
✅ Drop-In✓ In Stock
$0.91 / Unit
View Datasheet →PIC16LF1823-I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Family | PIC16 enhanced mid-range with XLP |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data SRAM | 128 B |
| Data EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz (Fosc), 8 MIPS |
| Supply Voltage Range (LF) | 1.8 V to 3.6 V (extended from typical 2.5V-3.6V operation) |
| I/O Pins | 12 |
| Package | 14-pin SOIC (SL) |
| Operating Temperature | -40 C to +85 C (Industrial) |
| ADC | 10-bit, up to 11 channels |
| Comparators | 2 |
| PWM Channels | 4 (10-bit) |
| Communication Peripherals | EUSART, I2C, SPI |
| Internal Oscillator | 32 MHz (factory calibrated +/- 1%) |
| Instruction Execution | 200 ns @ 20 MHz |
| XLP Sleep Current | Typical <50 nA (Watchdog disabled) |
| RoHS Status | Compliant |
PIC16LF1823-I/SL Pin Configuration
| Pin 1 | VDD — Positive supply voltage |
| Pin 2 | RA5 — Bidirectional I/O / MCLR/Reset |
| Pin 3 | RA4 — Bidirectional I/O / T0CKI / AN3 |
| Pin 4 | RA3 — Bidirectional I/O / VPP |
| Pin 5 | RC5 — Bidirectional I/O |
| Pin 6 | RC4 — Bidirectional I/O |
| Pin 7 | RC3 — Bidirectional I/O / SCL |
| Pin 8 | RC2 — Bidirectional I/O / SDA |
| Pin 9 | RC1 — Bidirectional I/O / CCP2 |
| Pin 10 | RC0 — Bidirectional I/O / CCP1 |
| Pin 11 | RA2 — Bidirectional I/O / INT / AN2 |
| Pin 12 | RA1 — Bidirectional I/O / ICSPCLK / AN1 |
| Pin 13 | RA0 — Bidirectional I/O / ICSPDAT / AN0 |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16LF1823-I/SL is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Consumer Remote Controls, Wearable Health Monitors, Energy Harvesting Designs, Smart Metering Endpoints, Industrial Sensor Transmitters.
Battery-Powered IoT Sensor Nodes
The PIC16LF1823-I/SL is ideal for battery-powered IoT sensor nodes due to its XLP (eXtreme Low Power) technology achieving sleep currents below 50nA typical, plus core-independent peripherals like the CLC and NCO that operate without waking the CPU. Its 1.8V-3.6V supply range matches CR2032 coin-cell and Li-ion chemistries directly, eliminating boost regulators. The 32MHz factory-calibrated internal oscillator (+/- 1% typical) removes external crystals, reducing BOM cost and PCB area. Periodic sensor reading with sub-microamp average consumption.
Recommended
Consumer Remote Controls
The PIC16LF1823-I/SL is well-suited for IR remote control designs leveraging its XLP technology to deliver multi-year battery life from a single CR2032 or AAA pair. The integrated PWM and CWG peripherals generate precise IR carrier frequencies (typically 36kHz-56kHz) without CPU intervention, while sleep currents below 50nA extend standby life. The 14-pin SOIC package provides hand-solderable pads for low-volume consumer production, and the 12 I/O pins easily accommodate IR LED driver, button matrix scanning, and optional LED indicators.
Recommended
Wearable Health Monitors
The PIC16LF1823-I/SL fits wearable health monitors by combining XLP technology (sub-50nA sleep), a 1.8V-3.6V supply range matching single-cell Li-ion, and an integrated 10-bit ADC for biosensor signal acquisition. Its 32MHz performance supports step counting, heart-rate sampling, and BLE heart-rate management apps, while the small 14-SOIC footprint suits wrist-worn enclosures. Core-independent peripherals enable sensor polling without CPU wake events, reducing active-mode time below 1% for multi-day battery operation.
Recommended
Energy Harvesting Designs
The PIC16LF1823-I/SL is a strong match for energy harvesting designs harvesting ambient energy from solar, thermal, or vibration sources, where its sub-50nA sleep current directly determines minimum harvest power requirements. Operating from 1.8V allows direct connection to low-voltage harvesters without boost converters, while the integrated 32MHz oscillator enables event-driven processing when sufficient energy accumulates. The 14-pin SOIC industrial package supports -40C to +85C operating range suitable for outdoor or industrial installations.
Recommended
Smart Metering Endpoints
The PIC16LF1823-I/SL serves smart metering endpoints like water, gas, and heat meters where XLP technology enables 10+ year battery operation on a single lithium cell. Its 10-bit ADC with internal voltage reference supports pulse counting and low-resolution sensor measurement, while EUSART enables AMR (Automatic Meter Reading) interfaces. Industrial -40C to +85C operation handles outdoor metering cabinet environments, and the 256-byte EEPROM retains calibration data and accumulated counts through battery replacement events.
Recommended
Industrial Sensor Transmitters
The PIC16LF1823-I/SL is well-suited for 4-20mA or 0-10V industrial sensor transmitters requiring reliable industrial-temperature operation (-40C to +85C), integrated ADC with internal calibration, and 1.8V-3.6V operation matching loop-powered architectures. Its enhanced mid-range core delivers 8 MIPS for linearization calculations on thermocouple, RTD, and strain gauge inputs, while the 12 I/O pins accommodate HART modem interfaces, loop power regulation feedback, and diagnostic LEDs in compact field transmitter enclosures.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1823-I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1823-I/SL | PIC16LF1823-I/P | PIC16LF1823-E/SL | PIC16LF1823-E/P | PIC16LF1823-E/JQ | PIC16LF1823-E/ML |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin SOIC (SL) | 14-pin SOIC (SL) - same | 14-pin PDIP (P) - through-hole variant | 14-pin SOIC (SL) - same | 14-pin PDIP (P) - through-hole variant | 14-pin SOIC (JQ) - tape and reel | 16-pin QFN (ML) - different footprint |
| Program Memory (Flash) | 3.5 KB (2K x 14) | 3.5 KB (2K x 14) - same | 3.5 KB (2K x 14) - same | 3.5 KB (2K x 14) - same | 3.5 KB (2K x 14) - same | 3.5 KB (2K x 14) - same | 3.5 KB (2K x 14) - same |
| RAM | 128 B | 128 B - same | 128 B - same | 128 B - same | 128 B - same | 128 B - same | 128 B - same |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 5.5 V (wider range) | 1.8 V to 3.6 V - same | 1.8 V to 3.6 V - same | 1.8 V to 3.6 V - same | 1.8 V to 3.6 V - same | 1.8 V to 3.6 V - same |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C - same | -40 C to +85 C - same | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) |
| Maximum CPU Speed | 32 MHz | 32 MHz - same | 32 MHz - same | 32 MHz - same | 32 MHz - same | 32 MHz - same | 32 MHz - same |
| I/O Pins | 12 | 12 - same | 12 - same | 12 - same | 12 - same | 12 - same | 12 - same |
| XLP Sleep Current | <50 nA typical | <50 nA typical - same | <50 nA typical - same | <50 nA typical - same | <50 nA typical - same | <50 nA typical - same | <50 nA typical - same |
Key Differentiators
- XLP technology delivers sub-50nA sleep current (vs PIC16F1823-I/SL (F variant))
- Extended temperature variant available in same footprint (vs PIC16LF1823-E/SL)
- Complete pinout compatibility with F variant (vs PIC16F1823-I/SL)
Design Notes
Estimated: For battery-life calculations on CR2032 (220mAh, 3V), at 50nA sleep current plus 1% active duty cycle at 1mA average active current, average current drain is approximately 10uA. Theoretical battery life: 220,000uAh / 10uA = 22,000 hours = 2.5 years. Real-world life is shorter due to coin-cell self-discharge and temperature effects. Disable WDT, brown-out detect in deep sleep, and use the CLC plus NCO to keep the CPU asleep while peripherals handle event detection.
Place a 100nF decoupling capacitor within 5mm of the VDD pin (Pin 1) and a 10uF bulk capacitor near the IC supply input. Connect VSS (Pin 14) directly to a ground plane with vias placed within 2mm. For ICSP programming header, route PGC/PGD (RA1/RA0) traces as short as possible and avoid running them parallel to switching signals. MCLR/RA5 should have a 10k pull-up to VDD for normal operation; if using external reset, route via a dedicated trace.
Configure all unused I/O pins as outputs with the output level set to the inverse of any nearby high-impedance trace to prevent floating-pin current draw (typically 1-5uA per floating pin). Disable unused peripherals via their control registers. For ADC accuracy, place analog signal traces away from switching signals, use a ground pour around analog pins, and use adequate settling time before sampling - the internal ADC requires at least 1.5 ADC clock cycles of acquisition time per the datasheet's ADC section.
The LF variant cannot operate above 3.6V - applying 5V to VDD will damage the part. Choose PIC16F1823 (standard F variant) for 5V designs. Do not assume that the 32MHz internal oscillator is accurate to +/- 1% over the full voltage and temperature range; for UART or USB timing, consider using a crystal or the 16MHz HFINTOSC mode. The LF1823's 1.8V minimum voltage operation requires the VREG configuration; if the datasheet indicates 'low-voltage programming' mode, ensure that the configuration word matches the intended supply voltage to avoid code-protection lockout.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified in standard grade - for automotive, contact Microchip for AEC-Q100 qualification status of specific part numbers.
