PIC16LF18323T-I/SL - 8-Bit 32MHz MCU, 3.5KB Flash | Microchip
MPN: PIC16LF18323T-I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.5 | $1.50 |
| 10 | $1.35 | $13.50 |
| 100 | $1.18 | $118.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.96 | $960.00 |
PIC16LF18323T-I/SL Overview
An 8-bit PIC microcontroller is a compact, low-power RISC-based processor built around Harvard architecture with separate program and data buses. The PIC16F/LF183xx family sits in the "enhanced mid-range" tier, offering Core Independent Peripherals (CIPs), Peripheral Pin Select (PPS), and Microchip's eXtreme Low Power (XLP) technology - features historically reserved for higher-tier MCUs. These devices target general-purpose and battery-powered applications where deterministic real-time response, low quiescent current, and rich analog integration matter more than raw compute throughput.
Key features include 3.5KB self-programmable Flash, 256B SRAM and 256B EEPROM, up to 12 MIPS throughput, an integrated 10-bit ADC with computation, two comparators, an 8-bit DAC, configurable logic cells (CLC), complementary waveform generator (CWG), Numerically Controlled Oscillator (NCO), and zero-cross detect. The 14-SOIC package offers 12 user I/O pins, all remappable via PPS, and supports I2C, SPI, and UART (EUSART) serial interfaces.
The LF silicon uses a low-power CMOS process optimized for sleep currents in the sub-microamp range and active currents below 50 uA/MHz. The device runs from an internal 32MHz high-frequency oscillator (HFINTOSC) with ±1% typical accuracy, eliminating the need for an external crystal in many designs.
Typical applications include battery-powered IoT sensor nodes, wearable health monitors, low-power remote controls, LED lighting controllers, capacitive touch user interfaces, and small home-appliance controls. The wide 1.8V-3.6V range supports direct Li-ion or two-AA battery operation, while XLP sleep modes extend shelf life for energy-harvesting or coin-cell products.
When designing with this MCU, use MPLAB X IDE with the XC8 compiler for firmware development. The PPS feature allows remapping digital peripheral outputs to virtually any I/O, simplifying PCB layout. Place a 0.1uF decoupling capacitor within 5mm of VDD and reserve a 4.7uF bulk capacitor for analog rail stability.
This page consolidates distributor pricing, pin-compatible drop-in alternatives, and engineering design notes that complement the manufacturer datasheet.
Drop-in alternatives for PIC16LF18323T-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 PIC16LF18323T-I/SL (same form factor and footprint) — differing in Package, ADC, Core Architecture, Operating Temperature, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF18323-I/SL
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC16LF18323T-E/SLVAO
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F18323-I/SL
✅ Drop-In✓ In Stock
$0.78 / Unit
View Datasheet →PIC16F18323T-I/SL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.65 / Unit
View Datasheet →PIC16LF18323T-I/JQ
✅ Drop-In✓ In Stock
$0.71 / Unit
View Datasheet →PIC16F18323-I/P
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF18323T-I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range 8-bit RISC |
| CPU Speed | 32 MHz (up to 12 MIPS) |
| Program Memory | 3.5 KB (2K x 14 words) Flash |
| Data SRAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Operating Voltage | 1.8 V to 3.6 V |
| I/O Pins | 12 |
| Package | 14-SOIC (SL), 3.90 mm body width |
| ADC | 10-bit, with Computation (ADC2) |
| Comparators | 2 |
| DAC | 8-bit, 1 channel |
| Timers | 4 (8-bit / 16-bit mix) |
| PWM Outputs | Yes (CCP/PWM/Enhanced PWM) |
| Serial Interfaces | I2C, SPI, EUSART |
| Peripheral Pin Select (PPS) | Yes |
| Core Independent Peripherals | CLC, CWG, NCO, ZCD |
| Internal Oscillator | 32 MHz HFINTOSC, ±1% typical |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
| RoHS Status | Compliant |
PIC16LF18323T-I/SL Pin Configuration
| Pin 1 | VDD — Positive power supply (1.8 V - 3.6 V) |
| Pin 2 | RA5 — Bidirectional I/O, analog input, ICSP data, PPS-remappable |
| Pin 3 | RA4 — Bidirectional I/O, analog input, PPS-remappable |
| Pin 4 | RA3 — Bidirectional I/O, analog input, MCLR/ICSP programming voltage |
| Pin 5 | RA2 — Bidirectional I/O, analog input, PPS-remappable |
| Pin 6 | RA1 — Bidirectional I/O, analog input, DAC output, PPS-remappable |
| Pin 7 | RA0 — Bidirectional I/O, analog input, ICSP clock, PPS-remappable |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RC0 — Bidirectional I/O, analog input, PPS-remappable |
| Pin 10 | RC1 — Bidirectional I/O, analog input, PPS-remappable |
| Pin 11 | RC2 — Bidirectional I/O, analog input, PPS-remappable |
| Pin 12 | RC3 — Bidirectional I/O, analog input, PPS-remappable |
| Pin 13 | RC4 — Bidirectional I/O, analog input, PPS-remappable |
| Pin 14 | RC5 — Bidirectional I/O, analog input, PPS-remappable |
Typical Applications
PIC16LF18323T-I/SL is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Wearable Health and Fitness Monitors, Low-Power Remote Controls, LED Lighting Controllers, Capacitive Touch User Interfaces, Small Home-Appliance Controls.
Battery-Powered IoT Sensor Nodes
The PIC16LF18323T-I/SL fits battery-powered IoT sensor nodes because of its 1.8V-3.6V VDD range (two-AA or coin-cell compatible), sub-30nA sleep current, and internal 32MHz HFINTOSC that eliminates an external crystal. Its 10-bit ADC2 with computation performs threshold-based sensor reading without waking the CPU, while the CLC plus NCO offload timing-critical sampling logic. Best deployed with periodic wake, sensor read, LoRa sub-GHz transmit, and deep-sleep cycling for multi-year battery life.
Recommended
Wearable Health and Fitness Monitors
The PIC16LF18323T-I/SL is well-suited for wearable health monitors thanks to its compact 14-SOIC footprint, sub-microamp sleep modes, and integrated 10-bit ADC with computation for photoplethysmography (PPG) and skin-temperature front-ends. The on-chip comparators handle Li-ion battery voltage monitoring, while CLC implements capacitive touch for button replacement. PPS remapping keeps analog front-end routing short, and the wide 1.8V-3.6V range supports direct Li-ion or Li-Po operation with no external LDO.
Recommended
Low-Power Remote Controls
The PIC16LF18323T-I/SL suits coin-cell-powered remote controls because of its 1.8V minimum VDD (one CR2032 directly), the 12 MIPS throughput that handles IR protocol encoding in firmware, and XLP sleep currents below 30 nA that extend battery life to multi-year ranges. The CWG and NCO produce precise 38 kHz carrier frequencies for IR transmission, while the 10-bit ADC reads battery voltage on demand. The peripheral pin select (PPS) lets the designer route PWM and UART to any I/O, simplifying board layout.
Recommended
LED Lighting Controllers
The PIC16LF18323T-I/SL is a strong fit for dimmable LED lighting controllers because of its 16-bit PWM with complementary outputs (CWG) for full-bridge LED drivers, 10-bit ADC for ambient-light sensing, and 8-bit DAC for analog dimming control. The CLC and NCO create smooth logarithmic dimming curves without CPU load, while PPS reassigns peripheral functions when the PCB layout dictates. Industrial -40C to +85C temperature rating suits outdoor luminaires and architectural fixtures.
Recommended
Capacitive Touch User Interfaces
The PIC16LF18323T-I/SL supports capacitive touch sensing through its on-chip comparators with 16-stage Capacitive Voltage Divider (CVD) hardware, which offloads touch scanning from the CPU. The 12 remappable I/O pins handle up to 12 touch electrodes or a matrix-scanned keypad, and the 32MHz throughput keeps response times below 10 ms. The XLP sleep modes maintain standby current below 1 uA when the user is not interacting, ideal for appliance and smart-home control panels.
Recommended
Small Home-Appliance Controls
The PIC16LF18323T-I/SL fits small home-appliance controllers - coffee makers, blenders, humidifiers - because of its industrial -40C to +85C range, integrated 10-bit ADC for thermistor sensing, and PWM/CCP for motor and heater control. The CWG produces complementary outputs for half-bridge drivers, the EUSART handles command-line debug or simple slave comms, and the 256B EEPROM stores user settings without wear concerns. PICkit programming via ICSP lets OEMs upgrade firmware in factory without hot-air rework.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18323T-I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18323-I/SL | PIC16LF18323T-E/SLVAO | PIC16F18323-I/SL | PIC16LF18323T-I/JQ |
|---|---|---|---|---|---|
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| VDD Range | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 2.3 V - 5.5 V | 1.8 V - 3.6 V |
| Flash | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB |
| SRAM / EEPROM | 256 B / 256 B | 256 B / 256 B | 256 B / 256 B | 256 B / 256 B | 256 B / 256 B |
| Max CPU Speed | 32 MHz / 12 MIPS | 32 MHz / 12 MIPS | 32 MHz / 12 MIPS | 32 MHz / 12 MIPS | 32 MHz / 12 MIPS |
| I/O Pins | 12 | 12 | 12 | 12 | 12 |
| PPS Support | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (extended) | -40 C to +85 C | -40 C to +85 C |
| Approx. Price @ 1k (USD) | 0.96 | 0.96 | 1.10 | 0.95 | 0.98 |
Key Differentiators
- Lowest VDD minimum in the family (vs PIC16F18323-I/SL)
- Industrial -40C to +85C standard grade (vs PIC16LF18323T-E/SLVAO)
- Tape & Reel packaging for SMT production (vs PIC16LF18323-I/SL)
Design Notes
Estimated: When the PIC16LF18323T-I/SL drives 12 I/O lines at 20 MHz from 3.3 V, the active core current is ~3 mA and the I/O contribution is up to 20 mA at full source. Place a 0.1 uF X7R decoupling capacitor within 5 mm of VDD (pin 1) and a 4.7 uF bulk cap on the same rail to absorb I/O switching transients. Enable the HLVD (High/Low Voltage Detect) peripheral to issue a controlled reset if VDD falls below 1.8 V, preventing corrupted EEPROM writes.
Keep the ICSP programming footprint accessible: route PGC (RA0, pin 7) and PGD (RA5, pin 2) with no series resistors to allow low-impedance in-circuit programming. Reserve a 6-pin ICSP header (PGC, PGD, VPP/MCLR, VDD, VSS, AUX) even in space-constrained designs - field firmware updates via ICSP save costly board rework. For PPS remapping, ensure the chosen remap pins are not conflict-assigned to ADC inputs that the application still needs.
PIC16LF18323T-I/SL is the LF (1.8 V - 3.6 V) variant - using it with a 5 V supply causes permanent damage. If your design needs 5 V tolerance, select the PIC16F18323-I/SL F-version instead. The configuration words must be set before first code execution; leaving them blank (erased state) defaults to a slow RC oscillator, which can look like a faulty part. Always verify the BOR (Brown-Out Reset) configuration matches the system voltage profile.
The internal HFINTOSC is ±1% typical at 32 MHz across 0-85 C; for UART comms above 115200 baud, switch to the 16x baud-rate PLL mode or use the EUSART auto-baud feature. When using the 10-bit ADC, the conversion sample-and-hold acquisition time depends on source impedance - keep analog source impedance below 10 kohm to avoid gain error. Place the analog reference pin (VREF+) decoupling cap (0.1 uF ceramic) within 5 mm.
Compliance Information
RoHS and REACH compliance per Microchip product page (Verified Electronics listing confirms RoHS). Standard -I grade; choose -E VAO suffix for AEC-Q100 automotive qualification.
