PIC16F18425-E/P - 8-Bit 32MHz 14KB Flash MCU | Microchip
MPN: PIC16F18425-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.23 | $2.23 |
| 10 | $1.95 | $19.50 |
| 100 | $1.62 | $162.00 |
| 500 | $1.31 | $655.00 |
| 1,000 | $1.05 | $1,050.00 |
PIC16F18425-E/P Overview
An 8-bit microcontroller (MCU) is a programmable integrated circuit that combines a CPU, non-volatile program memory, volatile data memory, and on-chip peripherals in a single package. The PIC16F18425 sits within the larger taxonomy of microcontroller -> 8-bit MCU -> PIC16 family -> PIC16F184xx sub-family -> low-pin-count XLP line, optimized for cost-sensitive and battery-powered applications where eXtreme Low-Power (XLP) technology and Core Independent Peripherals (CIPs) reduce CPU wake time and active current draw.
Key features of the PIC16F18425-E/P include 32MHz internal oscillator operation, eXtreme Low-Power (XLP) technology with sleep currents in the nanoamp range, a 12-bit ADCC with up to 30 channels (depending on package), Core Independent Peripherals such as the CLC, CWG, and NCO, and integrated safety features supporting IEC 61508 SIL 2/3 functional safety-capable designs when paired with the FuSa libraries. The wide 1.8V to 5.5V operating voltage range supports both 3.3V and 5V rails.
Technically, the PIC16F18425 implements a Harvard-architecture RISC core with a 14-bit instruction word and hardware stack, achieving single-cycle execution on most instructions. The ADCC provides automated averaging, burst averaging, and threshold comparison, offloading signal-conditioning work from the CPU. The CWG can synthesize complementary PWM outputs with dead-band control, useful for half-bridge driver stages.
Typical applications include low-power IoT sensor nodes, battery-powered home automation, LED lighting controllers, white-goods and small-motor control, automotive body and interior modules, industrial sensor conditioning with analog front-end digitization, and functional-safety-related sensor interfaces. The 14-pin PDIP package simplifies breadboard prototyping and through-hole repair scenarios.
When designing with this part, choose the internal 32MHz HFINTOSC to minimize external component count and BOM cost; reserve the external oscillator pin only when USB or precise-timing peripherals require it. Confirm pin count against the chosen variant (PIC16F18424 for 8-pin, PIC16F18425 for 14-pin, PIC16F18426 for 20-pin) before laying out the PCB footprint.
This page synthesizes distributor pricing, drop-in alternatives from the PIC16F184xx family, and practical design notes that are not available on the manufacturer product page alone.
Drop-in alternatives for PIC16F18425-E/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 PIC16F18425-E/P (same form factor and footprint) — differing in ADC, Program Memory (Flash), Package, Comparators, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18425-I/P
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →PIC16F18424-I/P
✅ Drop-In✓ In Stock
$0.81 / Unit
View Datasheet →PIC16F18424-E/P
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16F18325-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18325-E/P
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F1825-I/P
✅ Drop-In✓ In Stock
$1.23 / Unit
View Datasheet →PIC16F1825-E/P
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F18425-E/P Maximum Ratings & Electrical Characteristics
| CPU Core | PIC16 8-bit RISC |
| Maximum Clock Frequency | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 1 KB |
| Data EEPROM | 256 bytes |
| Operating Voltage Range | 1.8 V to 5.5 V |
| ADC | 12-bit ADCC, up to 30 channels (package dependent) |
| DAC | 5-bit |
| Comparators | 2 |
| PWM Channels | 2 |
| Communication | EUSART, SPI, I2C |
| Core Independent Peripherals | CLC, CWG, NCO |
| Timers | 11 (core-dependent count) |
| I/O Pins | 12 (14-pin PDIP variant) |
| Package | 14-pin PDIP (0.300", 7.62mm) |
| Mounting Type | Through-Hole (THT) |
| Operating Temperature Range (E suffix) | -40C to +125C |
| XLP (eXtreme Low-Power) Technology | Yes |
| Functional Safety | FuSa-capable with Class B/SIL libraries |
| RoHS Status | Compliant |
PIC16F18425-E/P Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8V to 5.5V) |
| Pin 2 | RA5 — I/O port A bit 5 / IOC / ADC channel |
| Pin 3 | RA4 — I/O port A bit 4 / IOC / ADC channel |
| Pin 4 | RA3/MCLR — I/O port A bit 3 / Master Clear (reset) input |
| Pin 5 | RC5 — I/O port C bit 5 / IOC / ADC channel |
| Pin 6 | RC4 — I/O port C bit 4 / IOC / ADC channel |
| Pin 7 | RC3 — I/O port C bit 3 / IOC / ADC channel / SCL |
| Pin 8 | RC2 — I/O port C bit 2 / IOC / ADC channel |
| Pin 9 | RC1 — I/O port C bit 1 / IOC / ADC channel |
| Pin 10 | RC0 — I/O port C bit 0 / IOC / ADC channel |
| Pin 11 | RA2 — I/O port A bit 2 / IOC / ADC channel |
| Pin 12 | RA1 — I/O port A bit 1 / IOC / ADC channel / DAC |
| Pin 13 | RA0 — I/O port A bit 0 / IOC / ADC channel |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16F18425-E/P is suitable for 7 applications: Battery-Powered IoT Sensor Node, Home Automation Lighting Controller, Small Motor Control / Fan Driver, Functional-Safety Sensor Interface (IEC 61508), Automotive Body and Interior Module, Industrial Sensor Conditioning with Analog Front-End, Consumer White Goods User Interface.
Battery-Powered IoT Sensor Node
The PIC16F18425-E/P's eXtreme Low-Power (XLP) technology with sub-50nA Sleep current and the 12-bit ADCC with automated threshold-comparison offload make this MCU ideal for duty-cycled battery-powered IoT sensor nodes. In a typical temperature/humidity sensing design, the device wakes every 30 seconds, samples the sensor via the ADCC averaging mode, compares against a threshold via the CLC, and returns to Sleep within 200 microseconds. The 32MHz HFINTOSC eliminates the external crystal, reducing BOM cost by ~0.20 USD per board. Powered by a CR2032, the design achieves 5+ year battery life with 1-minute reporting intervals and the EUSART driving a sub-GHz radio module such as the Microchip MRF89XA.
Recommended
Home Automation Lighting Controller
The PIC16F18425-E/P's two PWM channels, 12-bit ADCC, and Core Independent Peripherals including the Complementary Waveform Generator (CWG) provide a compact controller platform for home-automation lighting including dimmable LED fixtures and RGBW strips. The CWG synthesizes complementary PWM outputs with programmable dead-band, driving a half-bridge MOSFET pair directly without glue logic. The 12-bit ADCC reads ambient light sensor and potentiometer inputs for closed-loop dimming with 4096-step resolution. With 14KB Flash, firmware can host a ZigBee Green Power or BLE-Mesh template via the EUSART, while the 14-pin PDIP package supports breadboard prototyping for maker and small-OEM builds.
Recommended
Small Motor Control / Fan Driver
The PIC16F18425-E/P drives brushed DC motors and small brushless DC (BLDC) fans efficiently using its two PWM channels, two comparators, and the CWG for complementary outputs with dead-band insertion. In a 12V 1A BLDC-fan driver, the CWG and comparator-peripheral-tie form a sensorless zero-cross detector that offloads the CPU, allowing fan-RPM feedback to be processed in hardware. The 32MHz core supports a sensorless six-step commutation firmware with the 14KB Flash headroom. Industrial -40C to +125C operating range of the -E grade ensures reliability inside sealed fan housings or under-hood automotive environments.
Recommended
Functional-Safety Sensor Interface (IEC 61508)
The PIC16F18425-E/P's functional-safety capability, combined with its Extended -40C to +125C temperature grade, makes it suitable for safety-related sensor signal-conditioning applications up to IEC 61508 SIL 2. With Microchip's Class B and SIL 2/3 software libraries, the MCU can self-diagnose Flash, RAM, and CPU via the on-chip CRC, plus monitor the supply via the 12-bit ADCC, providing redundant safety channels without an external watchdog. The 14KB Flash accommodates diagnostic firmware alongside the application code, and the 14-pin PDIP allows through-hole repair and easy field replacement in industrial-safety controllers.
Recommended
Automotive Body and Interior Module
The PIC16F18425-E/P's Extended -40C to +125C temperature grade, AEC-Q100 readiness, and wide 1.8V-5.5V operating range qualify it for automotive body and interior modules such as seat controllers, ambient lighting, HVAC knob interfaces, and door-module sensor aggregation. The 12-bit ADCC reads thermistor inputs and rotary encoder signals, while the CWG drives LED strings and the two comparators perform over-current monitoring. LIN bus connectivity is supported via the EUSART and an external LIN transceiver such as the Microchip MCP2003B, enabling a fully automotive-grade body-control node.
Recommended
Industrial Sensor Conditioning with Analog Front-End
The PIC16F18425-E/P's 12-bit ADCC with hardware averaging, threshold detection, and burst-averaging modes enables direct digitization of analog sensors such as strain gauges, thermocouples via the on-chip reference, and 4-20mA loop transmitters. The internal 32MHz HFINTOSC eliminates external oscillator drift, while the 14-pin PDIP package simplifies through-hole manufacturing for industrial PLC analog input cards. The CLC combines comparator outputs to implement window-comparator hysteresis without CPU intervention, achieving microsecond-level trip response for safety shutoff.
Recommended
Consumer White Goods User Interface
The PIC16F18425-E/P's low BOM cost, through-holative DIP package, and integrated touch/temperature peripherals via the ADCC and CLC make it a strong fit for washing machines, dishwashers, microwave ovens, and other consumer white-goods user-interface boards. The 14KB Flash stores rotary-knob and button-debounce state machines plus seven-segment LED driving code, and the CLC eliminates external debounce ICs. The -40C to +125C Extended grade covers heat-shock zones such as behind a stove or dryer panel, and XLP technology supports battery-backed clock retention during power loss.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18425-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18425-I/P | PIC16F18424-I/P | PIC16F18424-E/P | PIC16F18325-I/P | PIC16F18325-E/P | PIC16F1825-I/P | PIC16F1825-E/P |
|---|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin PDIP | 14-pin PDIP (same) | 14-pin PDIP (same) | 14-pin PDIP (same) | 14-pin PDIP (same) | 14-pin PDIP (same) | 14-pin PDIP (same) | 14-pin PDIP (same) |
| Flash Memory | 14 KB | 14 KB | 8 KB | 8 KB | 32 KB | 32 KB | 14 KB | 14 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 2 KB | 2 KB | 1 KB | 1 KB |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) |
| ADC Resolution | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 10-bit ADC | 10-bit ADC | 10-bit ADC | 10-bit ADC |
| CIP Peripherals (CLC/CWG/NCO) | Yes | Yes | Yes | Yes | Partial (no NCO) | Partial (no NCO) | No | No |
| Functional Safety (FuSa) | Class B/SIL libraries available | Class B/SIL libraries available | Class B/SIL libraries available | Class B/SIL libraries available | Not FuSa | Not FuSa | Not FuSa | Not FuSa |
Key Differentiators
- Extended -40C to +125C temperature grade (vs PIC16F18425-I/P)
- 12-bit ADCC with hardware averaging and burst-mode (vs PIC16F1825-E/P)
- Modern Core Independent Peripherals (CLC, CWG, NCO) (vs PIC16F1825-E/P)
- Functional-safety-capable with Class B/SIL libraries (vs PIC16F18325-E/P)
Design Notes
The PIC16F18425-E/P operates from 1.8V to 5.5V; for battery designs, place a 100nF ceramic decoupling capacitor within 5mm of the VDD pin and a 4.7uF bulk capacitor at the supply rail to handle the 32MHz core's transient current. Estimated: peak transient at 32MHz is approximately 8-10 mA, well under the 100nF capacitor's rated ripple capability. For XLP sleep applications the brown-out reset (BOR) and watchdog (WDT) must be configured for low-power Sleep mode using the CONFIG2 register to avoid ~1uA leakage.
The 14-pin PDIP through-hole package allows breadboard prototyping; however, the high-speed ADIC comparator input traces should be kept short (under 25mm) and routed away from PWM and EUSART traces to minimize capacitive coupling. Place the ICSP/ICD connector footprint on the PCB even for production units - this allows firmware updates and in-circuit debug without board rework. Decouple the MCLR pin with a 100nF capacitor to VDD if in-system reset reliability matters.
When sampling the 12-bit ADCC at full 100 ksps throughput, add a 2nd-order RC anti-aliasing filter with cutoff at 50kHz. The ADCC input leakage is specified under 5nA; ensure the source impedance is below 10kohm to avoid gain error. Use the internal FVR (Fixed Voltage Reference) of 1.024V/2.048V/4.096V instead of VDD as the ADC reference for ratiometric measurements of sensors with VDD-excursion.
Do not enable the MCLR function on RA3 unless external reset is required; disabling MCLR frees RA3 as a general I/O with IOC. Confirm the CONFIG1 LVP (Low-Voltage Programming) bit is disabled for production to free the RB5/RA5 pin as an I/O. When migrating from PIC16F1825 (older generation) to PIC16F18425, the ADCC register map changed - firmware must be recompiled with the new MPLAB XC8 device header.
Compliance Information
AEC-Q100 qualified per Microchip automotive-grade product portfolio. Functional-safety (IEC 61508 SIL 2/3) capability via Class B/SIL software libraries, with separate documentation available from Microchip FuSa team.
