PIC16F18325-E/SL - 8-Bit MCU, 14KB Flash, 32MHz, 14-SOIC | Microchip
MPN: PIC16F18325-E/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.49 | $14.90 |
| 100 | $1.28 | $128.00 |
| 500 | $1.12 | $560.00 |
| 1,000 | $0.96 | $960.00 |
PIC16F18325-E/SL Overview
An 8-bit microcontroller (MCU) is a self-contained computing engine that combines a CPU, program and data memory, and configurable peripherals on a single silicon die. Within the broader semiconductor hierarchy, MCUs sit under microcontrollers and embedded processors and are widely used to replace discrete logic in cost-sensitive, deterministic control loops. The PIC16F18325 belongs to the PIC® XLP™ 16F family, distinguished by its peripheral pin select (PPS) routing and Core Independent Peripherals (CIPs) such as the CLC, NCO, CWG, and DSM that offload tasks from the core.
Key features include a 10-bit ADC with up to 12 channels, a 5-bit DAC, two comparators, two CCP and two 10-bit PWM peripherals, 9 timers, and serial interfaces comprising EUSART, SPI, and I2C. PPS allows most digital peripherals to be remapped to nearly any I/O pin, simplifying PCB routing in space-constrained 14-pin designs. The CWG and NCO enable precision waveform generation and signal modulation without CPU intervention, making the device well suited to low-power motor control and lighting.
The device supports an extended operating voltage of 2.3V to 5.5V, retains data down to 1.8V using the LF variant, and integrates brown-out reset and a wide-voltage detector. Functional Safety (FuSa) capability under the 16F umbrella helps designers targeting IEC-based safety documentation. With 14KB of self-programmable flash and 1KB of RAM, the PIC16F18325 sits between the smaller PIC16F18313 (4KB) and the larger PIC16F18345 (14KB with more peripherals in a 20-pin footprint).
Typical applications include IoT sensor nodes, low-power wireless remote controls, LED lighting controllers, small appliance controls, and battery-powered instrumentation. When migrating from the older PIC16F1825 family, designers should verify the PPS map and CIP availability because peripheral placement differs between revisions.
Drop-in alternatives for PIC16F18325-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 PIC16F18325-E/SL (same form factor and footprint) — differing in Package, ADC, I/O Pins, Core, Data SRAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18325-I/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18325T-E/SLVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18323-E/SL
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F18324-E/SL
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC16F1825-I/SL
✅ Drop-In✓ In Stock
$0.84 / Unit
View Datasheet →PIC16F18325-E/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 Enhanced Mid-Range 8-bit RISC |
| Program Memory (FLASH) | 14 KB |
| Data SRAM | 1 KB (1024 bytes) |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| I/O Pins | 12 (on 14-pin package) |
| ADC | 10-bit, up to 12 channels |
| DAC | 5-bit |
| Comparators | 2 |
| PWM Channels | 2 x 10-bit |
| CCP Modules | 2 |
| Timers | 9 |
| Communication Peripherals | EUSART, SPI, I2C |
| Peripheral Pin Select (PPS) | Yes |
| Core Independent Peripherals | CLC, NCO, CWG, DSM |
| Operating Temperature Range | -40 C to +125 C (E suffix = extended industrial) |
| Package | 14-pin SOIC (SL) |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16F18325-E/SL Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O, analog input, CCP/PWM output |
| Pin 2 | RA4 — Bidirectional I/O, analog input, timer gate |
| Pin 3 | RA3 — Bidirectional I/O, analog input, MCLR/VPP reset |
| Pin 4 | RC5 — Bidirectional I/O, analog input, PWM output |
| Pin 5 | RC4 — Bidirectional I/O, analog input, PWM output |
| Pin 6 | RC3 — Bidirectional I/O, analog input, SCL I2C clock |
| Pin 7 | RC2 — Bidirectional I/O, analog input, SDA I2C data |
| Pin 8 | RC1 — Bidirectional I/O, analog input, comparator output |
| Pin 9 | RC0 — Bidirectional I/O, analog input, SOSCO crystal |
| Pin 10 | VSS — Ground reference |
| Pin 11 | VDD — Positive power supply 2.3V to 5.5V |
| Pin 12 | RA2 — Bidirectional I/O, analog input, DAC reference |
| Pin 13 | RA1 — Bidirectional I/O, analog input, ICS PGD |
| Pin 14 | RA0 — Bidirectional I/O, analog input, ICSPDAT |
Typical Applications
PIC16F18325-E/SL is suitable for 6 applications: IoT Sensor Node, Battery-Powered Remote Control, LED Lighting Controller, Small Appliance Control Board, Automotive Body Electronics, Portable Medical Monitoring.
IoT Sensor Node
The PIC16F18325-E/SL fits IoT sensor node designs because it integrates a 10-bit ADC with up to 12 channels, two comparators, and Core Independent Peripherals (CLC, NCO, CWG) directly on-die, eliminating external signal-conditioning components. The XLP eXtreme Low Power feature set delivers sub-50 nA sleep current with the RTCC running, enabling multi-year battery life on a single CR2032 cell. The 14KB FLASH and 1KB SRAM fit typical sensor-fusion code while the 32MHz core keeps FFT and filtering responsive. PPS lets designers route any digital peripheral to nearly any I/O pin, easing RF module integration.
Recommended
Battery-Powered Remote Control
For handheld remote controls, the PIC16F18325-E/SL draws less than 50 nA in deep sleep with RTCC running, so a coin-cell battery can last the entire shelf life of the product. The integrated NCO and CWG peripherals generate IR or sub-GHz carrier frequencies without waking the CPU, freeing MIPS for key-scan and protocol logic. PPS remapping means designers can route EUSART, SPI, or I2C to any pin, simplifying layout for the few-button PCB. The 14-pin SOIC footprint drops onto hand-solder-friendly pads.
Recommended
LED Lighting Controller
The PIC16F18325-E/SL drives LED lighting strings through its two 10-bit PWM channels and Complementary Waveform Generator (CWG), which can produce half-bridge or full-bridge gate-drive timing without CPU overhead. The 5-bit DAC sets analog current reference levels for dimming loops while two comparators implement hardware over-current protection. Core Independent Peripherals keep colour-mixing and fade algorithms running while the CPU sleeps, reducing total quiescent draw. The 32MHz instruction rate sustains DMX-512 or DALI protocol decoding in software.
Recommended
Small Appliance Control Board
In small appliances such as coffee makers, fans, or kitchen timers, the PIC16F18325-E/SL handles user-input scanning, sensor acquisition, and motor/relay drive sequencing in a single 14-pin SOIC package. The 10-bit ADC reads thermistor, current-sense, and potentiometer inputs simultaneously through its 12-channel mux. The two comparators enable hardware over-temperature and over-current shutdown without software latency. XLP sleep modes let mains-powered appliances meet standby-power regulations below 100 mW.
Recommended
Automotive Body Electronics
Automotive body modules such as interior lighting, mirror controllers, and seat-position sensors use the PIC16F18325T-E/SLVAO variant (AEC-Q100 qualified) in the same 14-pin SOIC footprint as the -E/SL. The 10-bit ADC and two comparators monitor switch contacts and PWM-driven loads, while the CWG generates accurate FET gate timing for H-bridge actuators. EUSART, SPI, and I2C peripherals connect to body-domain LIN or CAN gateways via external transceivers. The extended -40C to +125C temperature range handles under-dash thermal stress.
Recommended
Portable Medical Monitoring
The PIC16F18325-E/SL is appropriate for portable medical monitoring peripherals such as pulse-oximeter dongles, smart thermometers, and pill-bottle reminders thanks to its low power consumption and integrated analog peripherals. The 10-bit ADC with 12 channels captures PPG, thermistor, and battery-voltage signals through dedicated pins, while the 5-bit DAC drives a bias voltage to the optical sensor. Core Independent Peripherals sustain sampling and alarm thresholds even in deep sleep. The 14KB FLASH stores sensor-fusion and BLE-protocol stack segments.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18325-E/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18325-I/SL | PIC16F18325T-E/SLVAO | PIC16F18323-E/SL | PIC16F18324-E/SL | PIC16F1825-I/SL |
|---|---|---|---|---|---|---|
| Package | 14-pin SOIC (SL) | 14-pin SOIC (SL) - same | 14-pin SOIC (SL) - same | 14-pin SOIC (SL) - same | 14-pin SOIC (SL) - same | 14-pin SOIC (SL) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (FLASH) | 14 KB | 14 KB | 14 KB | 7 KB (-50%) | 7 KB (-50%) | 14 KB |
| Data SRAM | 1 KB | 1 KB | 1 KB | 512 B (-49%) | 512 B (-49%) | 1 KB |
| Data EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Operating Temperature | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +125 C (Automotive VAO) | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) |
| PPS Peripheral Pin Select | Yes | Yes | Yes | Yes | Yes | No (legacy mapping) |
| Core Independent Peripherals (NCO/CLC/CWG) | Yes (all) | Yes (all) | Yes (all) | Yes (subset) | Yes (subset) | No (none) |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 5.5 V |
Key Differentiators
- Core Independent Peripherals (NCO/CLC/CWG/DSM) on-die (vs PIC16F1825-I/SL)
- Peripheral Pin Select on all digital peripherals (vs PIC16F1825-I/SL)
- Larger memory headroom (14KB FLASH, 1KB SRAM) (vs PIC16F18323-E/SL)
- Extended -40C to +125C operating range (vs PIC16F18325-I/SL)
Design Notes
The PIC16F18325-E/SL supports multiple low-power modes via the XLP feature set: Sleep (CPU off, peripherals off) at less than 50 nA typical, Doze (CPU off, selected peripherals on) at a few microamps, and Idle (CPU off, all peripherals on). The on-chip Low-Power Brown-Out Reset (LPBOR) and Windowed Watchdog Timer (WWDT) keep the device safe at low voltage without external components. For battery designs, route the RTCC to a low-frequency crystal on SOSCO/SOSCI to keep calendar time during Sleep. Estimated: deep-sleep current 50 nA at 3V, room temperature, RTCC running per datasheet DC characteristic table.
Place a 100 nF decoupling capacitor as close as possible between VDD (pin 11) and VSS (pin 10) using a short trace to minimize inductance. The MCLR/RA3 pin (pin 3) requires a 10 kohm pull-up to VDD for normal operation and an optional 100 nF cap for noise immunity per the Microchip datasheet. ICSP programming uses RA0 (ICSPDAT) and RA1 (ICSPCLK); keep these pins accessible on the PCB if in-circuit programming is required, with isolation resistors to the rest of the circuit.
Peripheral Pin Select (PPS) remapping lets most digital peripherals be assigned to any RA or RC pin, but analog inputs remain on fixed pins. Use PPS to keep SPI/I2C traces short by routing them to the pins closest to the connected device. When using the ADC, route analog signals on the dedicated analog-capable pins and avoid placing high-speed digital signals next to them to reduce crosstalk. The CLC, NCO, and CWG peripherals operate without CPU intervention - assign them fixed pins early in firmware planning so the PPS lock register configuration is stable.
When migrating from PIC16F1825 code, the PPS mapping is different: PIC16F1825 has fixed peripheral pin assignments while PIC16F18325 requires explicit PPS unlock/lock sequence. Do not assume timer capture/compare registers map the same; the CCP2 and PWM2 pin assignments differ. The 10-bit ADC reference voltage defaults to VDD; for precision measurements use an external reference on RA2 (DACREF-/VREF-) and RA3 (VREF+) pins. The watchdog timer is disabled by default - enable WWDT early in firmware if required for IEC functional safety.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified in -E/SL form; the PIC16F18325T-E/SLVAO variant is the automotive-grade equivalent. Lead-free and halogen-free per Microchip environmental compliance disclosure.
