PIC16LF18424-E/SL - 8-bit XLP MCU, 7KB Flash, 32MHz, SOIC-14
MPN: PIC16LF18424-E/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.72 | $1.72 |
| 10 | $1.55 | $15.50 |
| 100 | $1.38 | $138.00 |
| 500 | $1.22 | $610.00 |
| 1,000 | $1.1 | $1,100.00 |
PIC16LF18424-E/SL Overview
An 8-bit microcontroller is a single-chip computer built around an 8-bit data path and is one of the most widely deployed categories of embedded controllers. Within the broader semiconductor taxonomy, an 8-bit MCU belongs to microcontrollers, which in turn fall under integrated circuits (ICs) used for digital control. The PIC16F family is Microchip's flagship 8-bit platform, and the LF-prefix variants (PIC16LFxxxx) are the low-voltage, low-power siblings designed for battery and energy-harvesting applications. The "F" in the part number denotes Flash program memory, and the LF prefix denotes the operating voltage family extended down to roughly 1.8V.
Key features of the PIC16LF18424-E/SL include the 12-bit ADCC that offloads averaging, filtering, and threshold-comparison tasks from the CPU, the CWG for hardware-generated complementary drive signals (useful for synchronous rectifiers and triac-like outputs), and the on-chip 5-bit DAC for setpoint generation. Together these CIPs allow the CPU to remain in sleep for longer intervals, which is the foundation of the part's XLP energy budget. The device also provides multiple clock options including a 32 MHz internal oscillator, a 31 kHz low-power oscillator, and an external clock input for designers needing tight timing.
The LF process technology node, combined with Microchip's eXtreme Low-Power design techniques, delivers typical sleep currents in the nanoampere range with full RAM retention, making the PIC16LF18424-E/SL competitive with MSP430 and low-end ARM Cortex-M0+ parts on energy-per-computation benchmarks. The 14-pin footprint allocates 12 general-purpose I/O pins (subject to peripheral multiplexing), which is sufficient for sensor hubs, user-interface panels, and simple IoT edge nodes.
Typical applications include battery-powered IoT sensor nodes, low-power remote controls, smart-metering peripherals, white-goods user interfaces, and small appliances where the MCU must wake briefly, perform ADCC-based decision making, and return to a deep-sleep state. It is also deployed in automotive body and interior sub-modules thanks to the -E (extended) -40C to +125C temperature grade and the -Q automotive-qualified sibling (PIC16F18424-E/SLVAO).
When designing with this device, reserve budget for the ICSP programming pins (PGC/PGD) and ensure MCLR is properly handled for in-circuit programming; the SOIC-14 mechanical package is straightforward to hand-prototype and rework, which is a key advantage over smaller QFN variants. The CIP-rich peripheral set means the CPU rarely needs to wake from sleep to service peripherals.
Drop-in alternatives for PIC16LF18424-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 PIC16LF18424-E/SL (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Core Architecture, DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18424-E/SL
✅ Drop-In✓ In Stock
$0.62 / Unit
View Datasheet →PIC16LF18424-I/SL
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16LF18424-E/P
✅ Drop-In✓ In Stock
$1.28 / Unit
View Datasheet →PIC16LF18324-E/SL
✅ Drop-In✓ In Stock
$0.6 / Unit
View Datasheet →PIC16F18324-E/SL
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC16LF18424-E/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC enhanced mid-range |
| Family | PIC16(L)F184xx (XLP) |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| SRAM | 512 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| ADC | 12-bit ADCC with computation |
| DAC | 5-bit DAC |
| PWM Channels | 2 x 10-bit PWM |
| Comparators | 2 |
| Communication | EUSART, SPI, I2C |
| Package | 14-SOIC (SL), 3.90 mm body width |
| Pin Count | 14 |
| Operating Temperature | -40C to +125C (Extended, "E" grade) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF18424-E/SL Pin Configuration
| Pin 1 | RA5/ICLK/SOSCO — GPIO RA5 / 32 kHz crystal output / SOSC crystal output |
| Pin 2 | RA4/T0CKI/CWG1A — GPIO RA4 / Timer0 clock input / CWG complementary output A |
| Pin 3 | RA3/MCLR/VPP — GPIO RA3 / Master Clear reset (active low) / ICSP programming voltage |
| Pin 4 | RC5 — GPIO RC5 |
| Pin 5 | RC4/CWG1B — GPIO RC4 / CWG complementary output B |
| Pin 6 | RC3/AN7/CWG1_in — GPIO RC3 / ADC channel 7 / CWG clock input |
| Pin 7 | RC2/AN6 — GPIO RC2 / ADC channel 6 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RC1/AN5/DAC1OUT2 — GPIO RC1 / ADC channel 5 / DAC1 output 2 |
| Pin 10 | RC0/AN4/DAC1OUT1 — GPIO RC0 / ADC channel 4 / DAC1 output 1 |
| Pin 11 | RA2/AN2/C1IN0-/DAC5OUT1 — GPIO RA2 / ADC channel 2 / comparator C1 negative input / 5-bit DAC output 1 |
| Pin 12 | RA1/AN1/C1IN1-/ICSPCLK — GPIO RA1 / ADC channel 1 / comparator C1 negative input / ICSP clock |
| Pin 13 | RA0/AN0/C1IN0+/ICSPDAT — GPIO RA0 / ADC channel 0 / comparator C1 positive input / ICSP data |
| Pin 14 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
Typical Applications
PIC16LF18424-E/SL is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, White-Goods User Interface Panels, Smart-Metering Peripheral Modules, Small-Appliance Motor and Lighting Control, Low-Power Remote Controls and Key Fobs, Automotive Body and Interior Sub-Modules.
Battery-Powered IoT Sensor Nodes
The PIC16LF18424-E/SL is a strong fit for IoT sensor nodes because its nanoamp-level sleep current with full RAM retention lets the node spend most of its duty cycle in deep sleep, while the 12-bit ADCC allows autonomous threshold-based wake-ups without CPU intervention. Operated from a single CR2032 or pair of AAA cells at 1.8 V to 3.6 V, the device typically achieves single-digit microamp-hour-per-day energy budgets. Unlike 32-bit Cortex-M0+ parts, the 18424 sidesteps the need for an RTOS for simple sensor-hub firmware.
Recommended
White-Goods User Interface Panels
Washing machines, dishwashers, and refrigerators benefit from the PIC16LF18424-E/SL's combination of 14-SOIC hand-reworkable packaging, 12-bit ADCC for keypad or slider sensing, and PWM channels for buzzer/LED dimming. The CWG peripheral enables timed triac-style control of indicator lamps without CPU wake-ups. Compared with discrete logic + EEPROM implementations, the 18424 reduces BOM count and PCB area while simplifying firmware upgrades via ICSP.
Recommended
Smart-Metering Peripheral Modules
In electricity, water, or gas-meter peripherals, the PIC16LF18424-E/SL handles metrology-grade ADC sampling, tamper-switch input via the on-chip comparator, and wireless-module host duties via EUSART or SPI. The 256-byte EEPROM is sized for rolling interval logs, and the XLP sleep modes preserve coin-cell life across 10+ year deployment horizons. Compared with ASIC metrology front-ends, the 18424 offers firmware-upgradable feature sets at sub-$2 BoM.
Recommended
Small-Appliance Motor and Lighting Control
Brushless-DC fans, small pumps, and LED drivers use the PIC16LF18424-E/SL's Complementary Waveform Generator for hardware dead-band control of half-bridges, offloading switching timing from the CPU for jitter-free commutation. The 10-bit PWMs provide dimming and speed-setpoint generation, while the 5-bit DAC drives thermistor-bridge references. The 32 MHz core sustains field-oriented-control-lite loops at 8 kHz without CPU saturation.
Recommended
Low-Power Remote Controls and Key Fobs
The PIC16LF18424-E/SL delivers coin-cell-compatible voltage range and event-driven ADCC wake-up, making it ideal for IR or sub-GHz remote controls and key fobs. The 32 MHz burst performance is sufficient to encode Manchester or OOK packets in firmware, while deep-sleep retention holds the rolling-code counter for years. With 7 KB of Flash there is room for multi-protocol firmware variants.
Recommended
Automotive Body and Interior Sub-Modules
Thanks to the -E extended temperature grade (-40C to +125C) and the automotive-grade sibling PIC16F18424-E/SLVAO, the PIC16LF18424-E/SL is deployed in non-safety body controllers such as mirror adjusters, seat-position memory, interior-lighting fade controllers, and HVAC blend-door actuators. The CWG and PWMs target LED-fade and motor-PWM demands, while LIN-transceiver-friendly EUSART enables in-vehicle networking. The 14-SOIC package is well-suited to the vibration and thermal-cycling stresses of cabin-mounted modules.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18424-E/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18424-E/SL | PIC16LF18424-I/SL | PIC16LF18324-E/SL | PIC16F18324-E/SL |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Flash Memory | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB |
| ADC Resolution | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 10-bit ADC | 10-bit ADC |
| Operating 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 | 2.3 V to 5.5 V |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| CWG Peripheral | Yes | Yes | Yes | No | No |
| Operating Temperature | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) |
Key Differentiators
- 12-bit ADCC with hardware-averaging CIP offloads ADC scanning from CPU (vs PIC16LF18324-E/SL)
- Complementary Waveform Generator (CWG) enables hardware dead-band control (vs PIC16LF18324-E/SL)
- Low-voltage LF process supports 1.8 V minimum supply (vs PIC16F18324-E/SL)
Design Notes
Decouple VDD with a 100 nF X7R ceramic placed within 5 mm of pin 14, plus a bulk 1-10 uF aluminum-polymer or tantalum capacitor if the supply is shared with switching loads. The LF variant draws nanoamp-level sleep currents when Sleep mode is entered with all peripherals disabled - enable the ADC and comparators only when actively sampling to preserve battery life. Estimated: with 1 Mbyte/s SPI bursts the active current is roughly 2-3 mA at 32 MHz / 3.3 V; the same workload at 1 MHz drops to ~0.6 mA.
Route PGC (pin 12) and PGD (pin 13) traces to the ICSP header with stubs under 25 mm and 1 kohm series resistors near the MCU for production-line in-circuit programming noise immunity. MCLR (pin 3) requires a 10 kohm pull-up to VDD and a 100 nF cap to ground for noise filtering; some programming tools require 4.7-10 kohm instead of 10 kohm. Mount the ICSP header at the board edge to allow clip-attached programming without removing the microcontroller.
Do not omit the MCLR pull-up resistor or floating MCLR can cause spurious resets in noisy environments. Avoid running the EUSART at 1.5 Mbps without proper board-level impedance control - the SOIC-14 pin spacing makes 50 ohm routes difficult on two-layer boards. The 12-bit ADCC requires the FVR (Fixed Voltage Reference) to be enabled and stabilized for absolute measurements; otherwise readings drift with VDD.
When using the CWG for half-bridge drive, place the gate-driver feedback resistor within 5 mm of the MCU pin to minimize the CWG dead-band loop area. The PWM and CWG outputs can produce sharp edges (~5 ns rise time) - keep these traces short and route them on the top layer only, with a continuous ground pour below. The 32 MHz internal oscillator is accurate to about +/-1% across the -40C to +125C range, which is acceptable for UART baud rates up to 115200 without crystal calibration.
Compliance Information
RoHS and REACH compliant per Microchip product page. Lead-free finish per JEDEC J-STD-020. AEC-Q100 qualified versions available as PIC16F18424-E/SLVAO (not the LF variant) for automotive applications.
