PIC16LF18324-E/SL - 8-Bit XLP MCU 7KB Flash 32MHz SOIC-14 | Microchip
MPN: PIC16LF18324-E/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.19 | $1.19 |
| 10 | $1.05 | $10.50 |
| 100 | $0.89 | $89.00 |
| 500 | $0.74 | $370.00 |
| 1,000 | $0.6 | $600.00 |
PIC16LF18324-E/SL Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals on one die. PIC® microcontrollers from Microchip use a RISC-based Harvard architecture optimized for C compiler code generation. The 8-bit PIC16 family sits in the product hierarchy as: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor, and is widely used in cost-sensitive and ultra-low-power applications where the processing throughput of 32-bit MCUs is not required.
Key features include Peripheral Pin Select (PPS) for flexible digital peripheral routing, a 10-bit ADC with computation, two comparators, a 5-bit DAC, 10-bit PWM, Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Numerical Controlled Oscillator (NCO), EUSART, SPI, and I²C interfaces. The eXtreme Low Power (XLP) technology enables sleep currents below typical values for the class, with multiple power-managed modes for energy harvesting and battery applications.
Architecturally, the PIC16LF18324 uses Microchip's enhanced mid-range 8-bit core with a 14-bit instruction word and 32 MHz internal oscillator, achieving a 125 ns minimum instruction cycle. The CIPs (CLC, NCO, CWG, PWM) allow hardware-level signal processing without CPU intervention, reducing firmware complexity and power consumption. Memory is split into 4K x 14 words of Flash, 512 B of general-purpose SRAM, and 256 B of EEPROM for non-volatile data storage.
Typical applications include IoT sensor nodes, battery-powered home automation, low-power wireless sensor interfaces, LED lighting control, consumer electronics, and industrial control loops. The wide operating voltage range and low sleep current also make the part suitable for energy harvesting and remote-control applications.
When designing with this MCU, ensure the ICSP programming interface pins (PGD/PGC) are accessible for in-circuit programming and debugging. Use the PPS feature to remap digital peripherals onto a wide set of I/O pins, simplifying PCB layout and BOM consolidation across variants. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes that are not collated on the manufacturer datasheet or distributor product pages.
Drop-in alternatives for PIC16LF18324-E/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 PIC16LF18324-E/SL (same form factor and footprint) — differing in Package, ADC, Operating Temperature, DAC, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF18324-I/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF18325-E/SL
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC16F18324-E/SL
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC16LF18323-E/SL
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16LF18323T-I/SL
✅ Drop-In✓ In Stock
$0.96 / Unit
View Datasheet →PIC16LF18323T-E/SLVAO
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16LF18324-E/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC enhanced mid-range |
| Instruction Set | 14-bit, RISC |
| Maximum CPU Frequency | 32 MHz |
| Minimum Instruction Cycle | 125 ns |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data Memory (SRAM) | 512 B |
| EEPROM | 256 B |
| Supply Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 12 |
| ADC | 10-bit, with computation |
| Comparators | 2 |
| DAC | 5-bit |
| PWM Channels | 10-bit |
| Communication Peripherals | EUSART, SPI, I2C |
| Core Independent Peripherals (CIPs) | CLC, NCO, CWG, PPS |
| Operating Temperature | -40C to +125C |
| Package | 14-SOIC (3.90 mm) |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
| RoHS Status | Compliant |
PIC16LF18324-E/SL Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O / ICSP programming data (PGD) |
| Pin 2 | RA4 — Bidirectional I/O / ICSP programming clock (PGC) |
| Pin 3 | RA3/MCLR/VPP — Bidirectional I/O / Master Clear reset (active low) / programming voltage |
| Pin 4 | RA2 — Bidirectional I/O / analog input |
| Pin 5 | RA1 — Bidirectional I/O / analog input / DAC output |
| Pin 6 | RA0 — Bidirectional I/O / analog input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RA7 — Bidirectional I/O / oscillator input |
| Pin 9 | RA6 — Bidirectional I/O / oscillator output |
| Pin 10 | RC5 — Bidirectional I/O / PWM output |
| Pin 11 | RC4 — Bidirectional I/O / PWM output |
| Pin 12 | RC3 — Bidirectional I/O / analog input |
| Pin 13 | RC2 — Bidirectional I/O / analog input |
| Pin 14 | VDD — Positive power supply (1.8V to 3.6V) |
Typical Applications
PIC16LF18324-E/SL is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Home Automation & Smart Lighting, Consumer Electronics Remote Controls, Industrial Sensor Conditioning & Monitoring, Low-Power Medical Wearables, Automotive Body & Comfort Modules.
Battery-Powered IoT Sensor Nodes
The PIC16LF18324-E/SL is well-suited to battery-powered IoT sensor nodes because of its 1.8-3.6 V supply range and XLP nanoWatt sleep modes. The 7 KB Flash holds BLE/Zigbee stack snippets or LoRaWAN MAC handlers, while the 10-bit ADC with computation performs on-chip averaging and threshold detection, reducing wake events. Compared with a 32-bit MCU, the 8-bit core draws far less idle current while still running 32 MHz, and the CLC/CWG peripherals handle timing-critical events in hardware without CPU intervention.
Recommended
Home Automation & Smart Lighting
For home automation and smart lighting control, the PIC16LF18324-E/SL integrates a 10-bit PWM, a Complementary Waveform Generator (CWG), and a 5-bit DAC inside a 14-pin SOIC footprint. The CWG drives half-bridges for dimmable LED drivers without an external timer IC, and PPS routes SPI/I2C peripheral pins to any GPIO, simplifying PCB layout for multi-button wall switches. The 32 MHz CPU handles DMX-512 or DALI software stacks, and 256 B EEPROM stores calibration and scene presets across power cycles.
Recommended
Consumer Electronics Remote Controls
In IR/RF remote control designs, the PIC16LF18324-E/SL's EUSART, sleep current below 100 nA, and on-chip NCO simplify IR carrier generation and protocol encoding. The 14-pin SOIC fits inside slim remote housings, and 12 I/O pins support matrix keypads up to 4x4 with wake-on-change interrupts. The 7 KB Flash accommodates manufacturer code tables, and 256 B EEPROM stores pairing information. Compared with discrete 555-timer-based designs, this MCU reduces BOM count and adds configurable protocols via firmware.
Recommended
Industrial Sensor Conditioning & Monitoring
The PIC16LF18324-E/SL is well matched to industrial sensor-conditioning boards where a 10-bit ADC, two comparators, and a 5-bit DAC replace several op-amps. PPS remaps the SPI to any GPIO for isolated data links, and CLC implements windowed comparators and signal gating in hardware. The -40C to +125C operating range supports outdoor and cabinet-mounted installations, while 256 B EEPROM logs calibration coefficients. The same firmware is reused across 14-pin and 20-pin PIC16LF183XX siblings by recompiling with a different part number.
Recommended
Low-Power Medical Wearables
Battery-powered medical wearables benefit from the PIC16LF18324-E/SL's XLP sleep currents, 10-bit ADC with computation, and EUSART for streaming to a paired BLE SoC. The 7 KB Flash holds heart-rate, SpO2, or temperature algorithms, while 512 B SRAM supports short-term sample buffers. The 14-SOIC is hand-solder-friendly for prototyping and 1.8 V operation extends coin-cell battery life. PPS allows sensor front-ends to share a single SPI bus without external muxes.
Recommended
Automotive Body & Comfort Modules
Inside automotive body and comfort modules such as seat controllers, ambient lighting drivers, and HVAC flaps, the PIC16LF18324-E/SL provides PWM, comparators, and LIN-compatible EUSART in a compact SOIC-14. The PIC16LF18323T-E/SLVAO variant (in the same family) is automotive-qualified, making it a drop-in upgrade for AEC-Q100 designs. PPS re-routes peripherals across the 12 I/O pins, and the CWG generates center-aligned PWM for motor commutation, eliminating an external motor-driver timer.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18324-E/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18324-I/SL | PIC16LF18325-E/SL | PIC16F18324-E/SL | PIC16LF18323-E/SL |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC | 14-SOIC - same | 14-SOIC - same | 14-SOIC - same | 14-SOIC - same |
| Program Memory (Flash) | 7 KB | 7 KB | 14 KB | 7 KB | 3.5 KB |
| Data Memory (SRAM) | 512 B | 512 B | 1 KB | 512 B | 256 B |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 128 B |
| Supply Voltage Range | 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 | 1.8 V to 3.6 V |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Temperature Grade | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| Core Independent Peripherals | CLC, NCO, CWG, PPS | CLC, NCO, CWG, PPS | CLC, NCO, CWG, PPS | CLC, NCO, CWG, PPS | CLC, NCO, CWG, PPS |
Key Differentiators
- Core Independent Peripherals (CIPs) reduce CPU load and power consumption (vs PIC16LF1824)
- Peripheral Pin Select (PPS) for flexible digital routing (vs PIC16LF1824)
- XLP nanoWatt sleep with active peripherals (vs PIC16F18324)
Design Notes
Estimated: the PIC16LF18324-E/SL draws approximately 5-7 mA at 32 MHz with all peripherals active, but the XLP sleep mode drops this to below 100 nA when peripherals are gated. For battery applications, configure the CPU in SLEEP with the NCO or ADC running on LFINTOSC and use interrupt-on-change to wake. Decouple VDD (pin 14) with a 100 nF ceramic placed within 3 mm of the pin, and add a 10 uF bulk capacitor on the same rail. According to the Microchip datasheet, the MCU powers up at the internal default oscillator and the firmware must wait the 32 kHz LF oscillator stabilization time before switching to HFINTOSC.
Estimated: keep the ICSP programming footprint (RA4/RA5 plus MCLR) on a 5-pin header or test points so the board can be re-flashed after assembly. Per the Microchip datasheet, the 14-SOIC has 1.27 mm pin pitch; route 0.2 mm traces between pads with 0.5 mm clearance. Place a 100 nF decoupling capacitor as close as possible to pin 14 (VDD) and a second 100 nF on pin 7 (VSS) for symmetric return-path performance. Avoid routing noisy switching signals under the SOIC body, and use a continuous ground plane under the MCU for thermal and EMI reasons.
Do not leave MCLR floating; tie it to VDD through a 10 kohm resistor or directly to VDD if not using external reset, because floating MCLR can cause spurious resets. Configure unused I/O pins as outputs low (or inputs with internal weak pull-ups) to minimize sleep current. When using the ADC, set the TRIS and ANSEL registers correctly - analog-capable pins default to digital mode after reset. Per Microchip errata and datasheet, the HFINTOSC frequency can drift up to +/-2% over temperature; for UART communication, calibrate the OSCTUNE register or use an external crystal.
Compliance Information
RoHS and REACH compliant per Microchip product page. Lead-free (Pb-free) reflow profile JEDEC J-STD-020. For automotive AEC-Q100 qualification, choose the PIC16LF18323T-E/SLVAO variant from the same family.
