PIC16LF18323-I/P - 8-bit 32MHz XLP MCU 3.5KB Flash | Microchip
MPN: PIC16LF18323-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.16 | $1.16 |
| 10 | $1.04 | $10.40 |
| 100 | $0.91 | $91.00 |
| 500 | $0.78 | $390.00 |
| 1,000 | $0.67 | $670.00 |
PIC16LF18323-I/P Overview
A microcontroller (MCU) is a single-chip computer that integrates a processor core, program and data memory, peripherals, and I/O. The PIC16 family is built on Microchip's enhanced mid-range 8-bit core and is widely used in low-cost embedded designs. Within the broader taxonomy, PIC16LF18323 belongs to MCU -> 8-bit microcontroller -> PIC16 family -> XLP low-power series -> sub-volt semiconductor logic. The "LF" prefix denotes the wide-voltage low-power (XLP) silicon that supports operation from 1.8V.
Key specifications include a 1.8V to 3.6V supply range (typical low-power operation at 16MHz down to 1.8V), 12 I/O pins, an internal oscillator, on-board debug, and eXtreme Low Power (XLP) sleep currents suitable for battery-powered duty-cycled applications. The integrated Core Independent Peripherals (CIPs) such as CLC, NCO, and CWG offload timing-critical tasks from the CPU.
Architecturally, the PIC16LF18323 uses a Harvard RISC core with a 14-bit instruction word. The 2K x 14 FLASH is word-addressed and supports self-programming. PPS allows remapping of digital peripheral I/O to most pins, simplifying PCB routing when multiple functions must share a small pinout.
Typical applications include IoT sensor nodes, low-power remote controls, battery management front-ends, LED lighting controllers, and small home appliances where the 14-pin PDIP package eases prototyping and hand-soldered rework.
When designing with this part, choose the PDIP package for breadboard-friendly development and switch to surface-mount variants (SOIC-14, QFN) for production. Verify the operating voltage against the chosen clock frequency in the electrical characteristics tables.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF18323-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 PIC16LF18323-I/P (same form factor and footprint) — differing in ADC, Core, Package, DAC, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18323-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF18323-I/SL
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC16LF18323-I/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.56 / Unit
View Datasheet →PIC16LF18323-E/P
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC16LF18323-E/SL
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16LF18323-E/ST
✅ Drop-In✓ In Stock
$0.59 / Unit
View Datasheet →PIC16LF18323-E/P
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC16LF18323-I/P Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit Microcontroller (MCU) |
| Core | PIC16 enhanced mid-range 8-bit RISC |
| Program Memory (FLASH) | 3.5 KB (2K x 14 words) |
| Data RAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 12 |
| ADC | 10-bit |
| DAC | 5-bit |
| PWM | 10-bit |
| Package | 14-pin PDIP (P) |
| Mounting Type | Through-Hole |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| RoHS Status | Compliant |
PIC16LF18323-I/P Pin Configuration
| Pin 1 | RA5 — Digital I/O / analog input / ICSPCLK |
| Pin 2 | RA4 — Digital I/O / analog input |
| Pin 3 | RA3/MCLR — Digital I/O / analog input / Master Clear (reset) |
| Pin 4 | RA2 — Digital I/O / analog input |
| Pin 5 | RA1 — Digital I/O / analog input / ICSPDAT |
| Pin 6 | RA0 — Digital I/O / analog input |
| Pin 7 | VSS — Ground |
| Pin 8 | RC0 — Digital I/O / analog input |
| Pin 9 | RC1 — Digital I/O / analog input |
| Pin 10 | RC2 — Digital I/O / analog input |
| Pin 11 | RC3 — Digital I/O / analog input |
| Pin 12 | RC4 — Digital I/O / analog input |
| Pin 13 | RC5 — Digital I/O / analog input |
| Pin 14 | VDD — Positive supply voltage (1.8V to 3.6V) |
Typical Applications
PIC16LF18323-I/P is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Low-Power Remote Controls, LED Lighting Controllers, Small Home Appliances, Industrial Sensor Transmitters, Battery Management Front-Ends (Low-Side).
Battery-Powered IoT Sensor Nodes
The PIC16LF18323-I/P suits battery-powered IoT sensor nodes because its XLP (eXtreme Low Power) silicon delivers sub-microampere sleep currents at 1.8V-3.6V supply, while the integrated 10-bit ADC and Core Independent Peripherals (CLC, NCO, CWG) offload timing-critical tasks from the CPU. In a typical coin-cell or 2xAA sensor node, the device wakes periodically, samples a thermistor or analog sensor via the 10-bit ADC, transmits on a paired radio (e.g. SPI-attached sub-GHz module), and returns to sleep. The 1.8V minimum supply lets the rail droop to end-of-discharge without crashing the firmware. Compared with 5V-only MCUs, the LF silicon can extend battery life 2-5x at low duty cycles. Pair with low-quiescent LDO or direct cell connection for best efficiency.
Recommended
Low-Power Remote Controls
Handheld remote controls for consumer electronics benefit from the PIC16LF18323-I/P's wide 1.8V-3.6V supply range, sub-uA sleep current, and integrated PWM/CCP peripherals for IR or sub-GHz OOK transmission. A typical 2xAAA remote spends 99% of its life in sleep, waking on a button interrupt, transmitting a coded IR or RF burst, and returning to sleep. The internal 32MHz HFINTOSC eliminates an external crystal, reducing BOM cost. The 12 I/O pins comfortably handle a 4x4 button matrix with PWM-driven LED feedback. Compared to discrete timer+transmitter designs, the integrated MCU reduces parts count by 30-50% and enables firmware-based protocol updates.
Recommended
LED Lighting Controllers
The PIC16LF18323-I/P fits entry-level LED lighting controllers because its 10-bit PWM, 5-bit DAC, CLC (Configurable Logic Cell), and NCO (Numerically Controlled Oscillator) peripherals handle dimming, color mixing, and simple analog feedback loops without CPU intervention. A typical RGBW controller drives 4 MOSFETs via PWM at 10-bit resolution (1024 steps per channel), senses ambient light via the 10-bit ADC, and adjusts dimming in real time. The 1.8V minimum supply simplifies support for both 3.3V logic-level LED drivers and 5V legacy analog stages. The Peripheral Pin Select (PPS) lets the designer reassign PWM channels to optimize PCB routing.
Recommended
Small Home Appliances
The PIC16LF18323-I/P fits small home appliances like coffee makers, blenders, kitchen timers, and electric toothbrush chargers because it integrates the user-interface peripherals (PWM for motor/buzzer drive, ADC for temperature/level sensing, comparator for safety cutoff) on a single chip. A typical coffee grinder uses PWM to drive a brushed DC motor, the 10-bit ADC to read a thermistor for over-temperature protection, and the CLC to implement a hardware watchdog for the motor. The 14-pin PDIP package simplifies manufacturing for low-volume SKUs where hand-soldered rework is common. The 256B EEPROM retains user preferences (grind size, brew strength) across power cycles.
Recommended
Industrial Sensor Transmitters
Industrial 4-20mA loop-powered sensor transmitters benefit from the PIC16LF18323-I/P's 1.8V minimum supply, low XLP sleep current, and integrated 10-bit ADC plus op-amp-style peripherals for signal conditioning. A typical loop-powered pressure transmitter harvests 3.6V from a 4mA loop current, runs the MCU directly from the loop, and modulates loop current via a shunt FET. The XLP silicon keeps the MCU's quiescent draw under 50uA so the 4mA loop budget is dominated by sensor excitation, not the MCU. The CLC peripheral implements a hardware watchdog for fail-safe loop current behavior. Compared to discrete op-amp + ADC designs, the integrated MCU cuts PCB area by 40-60%.
Recommended
Battery Management Front-Ends (Low-Side)
The PIC16LF18323-I/P fits secondary battery management front-ends for single-cell Li-ion or multi-cell alkaline packs where monitoring cell voltage, current, and temperature is the primary task. The 10-bit ADC reads cell voltage via a resistive divider, the ADC's on-chip FVR provides a stable reference, and the EEPROM stores cycle-count and aging parameters. The 5-bit DAC and PWM peripherals can drive a low-side balancing FET. While not a full BQ40z80-class gas gauge, this MCU is well suited to entry-level smart batteries, USB-C power banks, and solar charge controllers where cost dominates over accuracy. Pair with an external coulomb counter AFE for high-accuracy applications.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18323-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18323-I/P | PIC16LF18323-I/SL | PIC16LF18323-I/ST | PIC16LF18323-E/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin PDIP | 14-pin PDIP | 14-pin SOIC | 14-pin TSSOP | 14-pin PDIP |
| FLASH Program Memory | 3.5 KB (2K x 14) | 3.5 KB (2K x 14) | 3.5 KB (2K x 14) | 3.5 KB (2K x 14) | 3.5 KB (2K x 14) |
| SRAM | 256 B | 256 B | 256 B | 256 B | 256 B |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage Range | 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 |
| Operating Temperature Range | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) |
| Unit Price (qty 1, USD) | 1.16 | 1.10 | 1.05 | 1.05 | 1.30 |
Key Differentiators
- Wide-voltage 1.8V-3.6V supply ideal for single-cell battery operation (vs PIC16F18323-I/P)
- Breadboard-friendly 14-pin PDIP through-hole package (vs PIC16LF18323-I/SL)
- Industrial temperature grade (I suffix = -40C to +85C) standard (vs PIC16LF18323-E/P (Extended))
- Integrated Core Independent Peripherals (CLC, NCO, CWG) reduce CPU load (vs Older PIC16LF1823-I/P)
Design Notes
Estimated: at 32MHz CPU and 3.3V supply, the PIC16LF18323-I/P draws about 2-3 mA active. For battery-powered designs, place the MCU in Sleep mode (sub-uA Iq) and wake via WDT or external interrupt on RA2/RA4. Always include a 100nF decoupling capacitor within 5mm of the VDD pin (pin 14) and a 10uF bulk capacitor on the supply rail. For 1.8V-3.6V battery systems, ensure the chosen battery's end-of-discharge voltage stays above 1.8V or accept that the MCU will brown-out before full energy extraction.
For the 14-pin PDIP footprint, place a ground pour on the top layer connected to pin 7 (VSS) and route VDD (pin 14) as a short, low-inductance trace to the decoupling cap. The MCLR/RA3 pin (pin 3) typically requires a 10k pull-up to VDD and a 100nF cap to ground for in-circuit serial programming (ICSP). Keep ICSPCLK/ICSPDAT traces short and away from switching nodes. If using the ADC, route analog inputs away from digital switching traces to minimize coupling noise.
Do not assume the LF variant can operate at 5V - the absolute maximum VDD is 3.6V and 5V will damage the silicon. Verify that your clock frequency is supported at your supply voltage per the datasheet's frequency-vs-voltage plot (e.g., 32MHz requires VDD >= ~2.0V, 16MHz down to 1.8V). When migrating from the 'F' to the 'LF' variant, double-check that all peripherals in use (especially analog modules) meet their minimum VDD requirement. The PPS (Peripheral Pin Select) feature must be configured in firmware to map peripherals to pins - it is not automatic.
When using the 10-bit ADC for precision measurements, add a small RC filter (10 ohm + 100nF) on the ADC input pin to limit broadband noise injection. Enable the ADC's acquisition time to allow the sample capacitor to settle (typically 1-2 us at high source impedance). Use the ADC's dedicated FVR (Fixed Voltage Reference) as the +V reference rather than VDD when measuring ratiometric sensors for best accuracy. Avoid switching high-current loads (LEDs, motors) during ADC sampling to minimize supply ripple coupling.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - this is an industrial/consumer-grade part. For AEC-Q100 automotive qualification, consult Microchip automotive-grade part listings.
