PIC16LF18424-E/ST - 8-Bit XLP MCU 32MHz 7KB FLASH 14-TSSOP | Microchip
MPN: PIC16LF18424-E/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.45 | $14.50 |
| 100 | $1.18 | $118.00 |
| 500 | $0.98 | $490.00 |
| 1,000 | $0.86 | $860.00 |
PIC16LF18424-E/ST Overview
A PIC microcontroller is a microcontroller unit (MCU) based on the PIC (Peripheral Interface Controller) architecture developed by Microchip. It combines a CPU core, Flash program memory, SRAM, EEPROM, and a rich set of on-chip peripherals in a single chip. PIC MCUs belong to the broader category of embedded microcontrollers -> microcontrollers -> microprocessors -> integrated circuits -> semiconductors, and they are widely used for low-power, deterministic, mixed-signal embedded control.
Key features include the high-performance 8-bit CPU with 49 instructions, hardware multiply, 7 KB Flash, 512 B SRAM, and 256 B EEPROM. Peripherals include a 12-bit ADC with Computation (ADCC), two 10-bit PWMs, a 5-bit DAC, comparators, a Complementary Waveform Generator (CWG), EUSART, SPI, and I2C. XLP technology delivers nanoWatt sleep currents, making the part suitable for battery-powered and energy-harvesting applications.
The LF variant operates across a wide 1.8V to 3.6V supply range, ideal for 2x AA/AAA battery systems. It includes 12-channel 12-bit analog conversion, a configurable logic cell (CLC), and an 8-bit timer with HLT (Hardware Limit Timer), enabling flexible mixed-signal designs.
Typical applications include low-power IoT sensor nodes, wearable health monitors, battery-powered remote controls, smart home edge nodes, and industrial sensor interfaces. The combination of 32 MHz operation, low sleep current, and CIP-based signal processing simplifies firmware and reduces overall BOM.
When designing, leverage the eXtreme Low-Power modes and the IDLE/DOZE features to balance throughput and current. Place a 0.1 uF decoupling capacitor on VDD within 5 mm of the pin and use bulk filter near the power connector.
This page synthesizes distributor pricing, drop-in alternative pinouts, and practical low-power design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF18424-E/ST — 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/ST (same form factor and footprint) — differing in ADC, Package, Core Architecture, Family, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF18424-I/ST
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18424-E/ST
✅ Drop-In✓ In Stock
$0.81 / Unit
View Datasheet →PIC16LF18424-E/P
✅ Drop-In✓ In Stock
$1.28 / Unit
View Datasheet →PIC16LF18424-E/SL
✅ Drop-In✓ In Stock
$1.1 / Unit
View Datasheet →PIC16LF1824-E/ST
✅ Drop-In✓ In Stock
$1.42 / Unit
View Datasheet →PIC16LF18424-E/ST Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC (8-bit) |
| Family | PIC16(L)F184xx |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data Memory (SRAM) | 512 B |
| EEPROM | 256 B |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 11 (14-pin TSSOP) |
| ADC | 12-bit ADCC, up to 12 channels |
| DAC | 5-bit DAC |
| PWM | 2x 10-bit PWM |
| Comparators | Yes (with hysteresis) |
| Communication | EUSART, SPI, I2C |
| CWG (Complementary Waveform Generator) | Yes |
| Operating Temperature | -40C to +125C (E suffix) |
| Package | 14-pin TSSOP (ST) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF18424-E/ST Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 2 | RA5 — Bidirectional I/O pin / ADC input |
| Pin 3 | RA4 — Bidirectional I/O pin / ADC input |
| Pin 4 | RA3 — Bidirectional I/O / MCLR/VPP programming pin |
| Pin 5 | RC5 — Bidirectional I/O pin |
| Pin 6 | RC4 — Bidirectional I/O pin |
| Pin 7 | RC3 — Bidirectional I/O / ADC input |
| Pin 8 | RC2 — Bidirectional I/O / ADC input |
| Pin 9 | RC1 — Bidirectional I/O / ADC input |
| Pin 10 | RC0 — Bidirectional I/O / ADC input |
| Pin 11 | RA2 — Bidirectional I/O / ADC input |
| Pin 12 | RA1 — Bidirectional I/O / ADC input / DAC reference |
| Pin 13 | RA0 — Bidirectional I/O / ADC input |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16LF18424-E/ST is suitable for 6 applications: Battery-Powered IoT Sensor Node, Wearable Health Monitor, Smart Home Edge Sensor, Industrial Sensor Interface, Remote Control / Wireless HMI, Automotive Body Electronics.
Battery-Powered IoT Sensor Node
The PIC16LF18424-E/ST's XLP nanoWatt technology and 1.8-3.6 V operating range make it ideal for battery-powered IoT sensor nodes operating from a single CR2032 coin cell or 2x AAA batteries. The 12-bit ADCC delivers precise readings from temperature, humidity, or motion sensors, while the CWG and 10-bit PWMs support low-power actuator control. Sleep currents below 1 uA enable multi-year battery life when the device wakes periodically to sample and transmit via EUSART or I2C.
Recommended
Wearable Health Monitor
Wearable health monitors require the PIC16LF18424-E/ST's combination of low voltage operation, small 14-pin TSSOP footprint, and the 12-bit ADCC for accurate biosignal acquisition (heart rate, SpO2, motion). Its XLP mode draws under 1 uA in sleep, allowing continuous monitoring on a single Li-ion or coin cell for weeks. The CLC (Configurable Logic Cell) implements custom digital signal conditioning without CPU intervention, while EUSART/SPI/I2C drives sensor and BLE modules.
Recommended
Smart Home Edge Sensor
The PIC16LF18424-E/ST serves as a smart-home edge sensor controller, reading analog signals from light, temperature, or occupancy sensors and triggering outputs via GPIO or PWM. Its 32 MHz performance handles multiple sensor interfaces simultaneously, while XLP modes keep standby power below 50 uA for wall-powered or battery-backed designs. The CWG simplifies dimmable LED driver topologies, and 5-bit DAC provides low-resolution analog setpoints for HVAC controllers.
Recommended
Industrial Sensor Interface
Industrial sensor conditioning modules use the PIC16LF18424-E/ST's 12-bit ADCC for 4-20 mA loop measurements and 0-10 V signal acquisition, with the comparator providing fast over-range detection. The TSSOP-14 package and -40C to +125C extended temperature range suit sealed industrial enclosures. CWG outputs can drive opto-isolated relay or SSR control loops, while the EEPROM stores calibration data and configuration across the part's lifetime.
Recommended
Remote Control / Wireless HMI
The PIC16LF18424-E/ST powers remote control and HMI devices with its low-voltage operation, fast wake-up, and integrated EUSART/SPI/I2C for transceiver ICs. The 5-bit DAC generates analog reference levels for key-touch sensing, while the 10-bit PWM produces backlight or haptic feedback waveforms. XLP modes extend coin-cell runtime significantly versus standard PIC16 parts.
Recommended
Automotive Body Electronics
Automotive body control nodes (lighting, seat controllers, simple sensor clusters) leverage the PIC16LF18424-E/ST's extended -40C to +125C operating range and TSSOP-14 small footprint. The CWG drives LED matrices and small motor controllers, while 12-bit ADCC reads battery voltage and temperature signals. Note that AEC-Q100 qualification is not specified for this part number; AEC-Q100 grades would require the -VAO or automotive-suffix variants.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18424-E/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18424-I/ST | PIC16F18424-E/ST | PIC16LF18424-E/P | PIC16LF18424-E/SL | PIC16LF1824-E/ST |
|---|---|---|---|---|---|---|
| Package | 14-pin TSSOP (ST) | 14-pin TSSOP (ST) | 14-pin TSSOP (ST) | 14-pin PDIP (P) | 14-pin SOIC (SL) | 14-pin TSSOP (ST) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 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 |
| Flash Memory | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB | 4 KB |
| SRAM | 512 B | 512 B | 512 B | 512 B | 512 B | 256 B |
| ADC Resolution | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 10-bit ADC |
| CPU Clock Max | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) |
| Unit Price (qty 1, USD) | 1.62 | 1.55 | 1.70 | 1.78 | 1.68 | 1.45 |
Key Differentiators
- Wide operating temperature range (vs PIC16LF18424-I/ST)
- Lower sleep current for battery life (vs PIC16F18424-E/ST)
- Doubled program memory vs older family (vs PIC16LF1824-E/ST)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of VDD (pin 13) and a bulk 1-10 uF capacitor near the regulator output. For battery applications with the LF variant, use Sleep mode (consuming under 1 uA) and configure the WDT to wake the device periodically. Estimate: a CR2032 battery (220 mAh) running at 1 uA average sleep current provides approximately 25 years of standby life, but self-discharge (~1%/year) typically limits practical life to 10 years.
The TSSOP-14 package has a thermal pad-less footprint with pin pitch 0.65 mm. Use reflow soldering per IPC/JEDEC J-STD-020 with peak temperature below 250C. For prototypes, hand-soldering is possible but requires fine-tip iron and flux. Recommended land pattern: 0.30 mm wide pads, 0.65 mm pitch, 1.0 mm pad length. Avoid running noisy digital traces under or near the analog ADC inputs (RA0-RA5, RC0-RC3).
Do not exceed VDD > 3.6 V on the LF variant or 5.5 V on the F variant, as this can permanently damage the device. When using the MCLR pin (pin 3, RA3) as an input, ensure the line is held low for proper programming mode entry. The 12-bit ADCC requires the FVR (Fixed Voltage Reference) module to be enabled for stable conversions; reference voltage fluctuations can cause up to +/-5% gain error. When migrating from PIC16LF1824, note that ADCC replaces the legacy ADC, requiring firmware updates to the ADC configuration registers.
Keep analog signal traces (RA0-RA5, RC0-RC3) as short as possible and route them away from digital switching lines such as PWM outputs and oscillator traces. Ground return paths for analog and digital sections should converge at the VSS pin (pin 14) to prevent ground bounce errors in ADC measurements. The CWG outputs (complementary waveform generator) should be routed with matched impedance to avoid skew between the high-side and low-side signals.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; automotive applications should use -VAO suffix variants where available.
