PIC16F18325-E/P - 8-Bit MCU, 14KB Flash, XLP | Microchip
MPN: PIC16F18325-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.47 | $14.70 |
| 100 | $1.31 | $131.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.05 | $1,050.00 |
PIC16F18325-E/P Overview
What is an 8-bit microcontroller? An 8-bit MCU (microcontroller unit) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), non-volatile storage (EEPROM), and programmable peripherals onto one silicon die. 8-bit MCUs sit at the lowest tier of the microcontroller hierarchy: microcontroller -> embedded controller -> semiconductor IC. They remain dominant in cost-sensitive, deterministic, low-power applications where 32-bit processors would be overkill. The PIC16F18325 family is positioned in Microchip's enhanced mid-range PIC16 core line and targets battery-powered and sensor-interface designs.
Key features of the PIC16F18325-E/P include a 32 MHz internal oscillator, Peripheral Pin Select (PPS) for flexible digital peripheral routing, a 10-bit ADC with up to 11 channels, two 8-bit timers plus one 16-bit timer, two CCP modules supporting PWM, two comparators, a 5-bit DAC, and hardware SPI/I2C/EUSART interfaces. The 10-bit PWM with CCP enables motor and lighting control without software overhead.
The PIC16F18325-E/P uses a 14-bit instruction word RISC architecture with 49 instructions and a single-cycle ALU, delivering deterministic interrupt latency. The integrated CIPs allow complex timing, logic, and signal-conditioning tasks to execute in hardware, freeing the CPU for application code. XLP technology reduces sleep current to roughly 50 nA typical with the Real-Time Clock active, making the part attractive for energy-harvesting and battery-backed designs.
Typical applications include IoT sensor nodes, battery-powered consumer devices, low-end motor control (fans, small pumps), LED lighting controllers, remote controls, and HVAC sensor interfaces. The wide operating voltage range lets it run directly from a single lithium cell or two AAs, simplifying the analog front-end.
When designing with this part, ensure that the PPS function is configured via MPLAB X IDE before peripheral operation - peripherals are not pinned to specific I/O by default. For EEPROM endurance of 100K cycles typical, write to EEPROM only when necessary, and prefer wear-levelling if frequent updates are required.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. XAIPART cross-references the PIC16F18325-E/P against other 14-pin PDIP PIC16 variants to enable seamless sourcing across temperature grades and packaging options.
Drop-in alternatives for PIC16F18325-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 PIC16F18325-E/P (same form factor and footprint) — differing in Package, ADC, Operating Temperature, I/O Pins, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18325-I/P
✅ Drop-In✓ In Stock
$1.1 / Unit
View Datasheet →PIC16F18313-E/P
✅ Drop-In✓ In Stock
$0.75 / Unit
View Datasheet →PIC16F18324-E/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.78 / Unit
View Datasheet →PIC16F1825-E/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F1829-E/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.41 / Unit
View Datasheet →PIC16F18325-E/P Maximum Ratings & Electrical Characteristics
| Program Memory (Flash) | 14 KB |
| Data SRAM | 1 KB |
| EEPROM | 256 B |
| CPU Core | PIC16 enhanced mid-range 8-bit |
| Instruction Set | 49 instructions, 14-bit instruction word |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | 12 |
| ADC | 10-bit, up to 11 channels |
| DAC | 5-bit |
| Comparators | 2 |
| Timers | 2x 8-bit, 1x 16-bit |
| CCP/PWM Modules | 2 CCP, 10-bit PWM |
| Communication Interfaces | EUSART, SPI, I2C |
| Core Independent Peripherals | CLC, CWG, NCO, PPS |
| Package | 14-pin PDIP |
| Operating Temperature Range | -40 C to +125 C (E suffix) |
| Mounting Type | Through-Hole |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16F18325-E/P Pin Configuration
| Pin 1 | RA0/ICSPDAT — Bidirectional I/O / ICSP data |
| Pin 2 | RA1/ICSPCLK — Bidirectional I/O / ICSP clock |
| Pin 3 | RA2 — Bidirectional I/O |
| Pin 4 | RA3/VPP — Bidirectional I/O / programming voltage |
| Pin 5 | RA4 — Bidirectional I/O |
| Pin 6 | RA5 — Bidirectional I/O |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RA6 — Bidirectional I/O |
| Pin 9 | RA7 — Bidirectional I/O |
| Pin 10 | RB4 — Bidirectional I/O |
| Pin 11 | RB5 — Bidirectional I/O |
| Pin 12 | RB6/ICSPCLK — Bidirectional I/O / ICSP clock |
| Pin 13 | RB7/ICSPDAT — Bidirectional I/O / ICSP data |
| Pin 14 | VDD — Positive supply voltage |
Typical Applications
PIC16F18325-E/P is suitable for 6 applications: IoT Battery-Powered Sensor Node, LED Lighting Controller, Low-Voltage Motor Control, Remote Control Transmitter, HVAC Sensor Interface, Industrial Control Logic Replacement.
IoT Battery-Powered Sensor Node
The PIC16F18325-E/P fits IoT sensor nodes because of its 50 nA XLP sleep current and 1.8V-5.5V operating range. The PIC16F18325-E/P's 12-bit ADC and 11 analog channels let it interface directly to temperature, humidity, and light sensors without external signal conditioning, while the integrated CLC and NCO enable periodic wake-up sequencing entirely in hardware, keeping the CPU asleep for months on a single CR2032. The 14-pin PDIP package is breadboard-friendly for rapid prototyping.
Recommended
LED Lighting Controller
The PIC16F18325-E/P drives LED strips and architectural lighting through its two 10-bit PWM channels and the Complementary Waveform Generator (CWG). The CWG produces hardware-timed MOSFET gate signals with dead-band control, eliminating CPU overhead for high-frequency dimming. With 32 MHz operation, the part runs PID color-mixing loops at 10 kHz update rates, and the wide operating voltage supports both 3.3V logic-level and 5V analog LED strings.
Recommended
Low-Voltage Motor Control
The PIC16F18325-E/P's 10-bit PWM with two CCP modules and the CWG handles small DC motors, fans, and pumps up to several hundred mA through external MOSFETs. The 32 MHz instruction rate delivers sub-microsecond PWM resolution, while the integrated comparators enable overcurrent protection without external op-amps. The extended -40C to +125C temperature grade supports under-hood automotive and HVAC blower applications.
Recommended
Remote Control Transmitter
Battery-powered remote controls benefit from the PIC16F18325-E/P's sub-microamp sleep current and the EUSART for IR modulation. The PIC16F18325-E/P's NCO generates precise carrier frequencies (typically 38 kHz for IR remotes) in hardware, allowing the CPU to stay in sleep between button presses and extend battery life to multi-year timescales. The 14-pin PDIP supports through-hole assembly suited to low-volume consumer products.
Recommended
HVAC Sensor Interface
The PIC16F18325-E/P reads multiple analog thermistors and pressure sensors through its 11-channel 10-bit ADC, while the I2C/SPI interfaces connect to digital environmental sensors. The CLC implements custom digital filtering (e.g., debouncing or hysteresis) in hardware, offloading the CPU. Industrial -E temperature rating allows mounting in attics, ducts, and outdoor equipment where temperatures routinely exceed 85C.
Recommended
Industrial Control Logic Replacement
Designers replacing legacy discrete logic or small PLCs use the PIC16F18325-E/P because the CLCs implement combinational and sequential logic in silicon without software. The PIC16F18325-E/P's PPS routes CLC outputs to any pin, simplifying PCB layout. Operating at 5V directly interfaces 5V industrial sensors, and the 14-pin PDIP form factor allows direct substitution in legacy sockets with extended temperature reliability.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18325-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18325-I/P | PIC16F18313-E/P | PIC16F18324-E/P | PIC16F1825-E/P |
|---|---|---|---|---|---|
| Package | 14-pin PDIP | 14-pin PDIP - same | 14-pin PDIP - same | 14-pin PDIP - same | 14-pin PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 14 KB | 7 KB (-50%) | 7 KB (-50%) | 14 KB |
| SRAM | 1 KB | 1 KB | 256 B (-75%) | 1 KB | 1 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +125C |
| Core Independent Peripherals (CLC/CWG/NCO) | Yes | Yes | Yes | Yes | No (older generation) |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | No (older generation) |
| Approx. Unit Price (qty 100) | $1.31 | $1.25 | $1.10 | $1.15 | $1.45 |
Key Differentiators
- Extended industrial temperature range with same die (vs PIC16F18325-I/P)
- 14 KB Flash double the lower-memory siblings (vs PIC16F18313-E/P)
- Core Independent Peripherals present versus older PIC16F1825 (vs PIC16F1825-E/P)
Design Notes
The PIC16F18325-E/P supports a wide 1.8V-5.5V supply range and features XLP sleep current around 50 nA with the Watchdog Timer disabled. Decouple VDD (pin 14) with a 100 nF ceramic capacitor placed within 5 mm of the pin, and add a 10 uF bulk capacitor if the supply rail is shared with noisy digital loads. For battery applications, place a 1M-ohm resistor from MCLR to VDD to avoid leakage paths during sleep.
Place the ICSP header (ICSPDAT/ICSPCLK) on the PCB even for production boards - field firmware updates over ICSP are common. Route the 32 kHz or high-frequency crystal traces (if used) symmetrically with short stubs to GND, and place the load capacitors within 2 mm of the OSC pins. Avoid routing high-current switching signals near RA0/RA1 to prevent ADC noise injection on sensitive analog readings.
PPS must be explicitly configured via firmware before peripherals like UART or PWM function on non-default pins - the peripheral outputs and inputs default to disabled. Forgetting the PPS unlock sequence (EUSART and CLC require unlocking before configuration) is a common source of 'dead peripheral' debugging. Also, never drive VPP above VDD by more than the datasheet absolute maximum, typically 8.5V, or you risk latch-up of the ICSP charge pump.
Compliance Information
RoHS and REACH compliant per Microchip product declaration. Not AEC-Q100 qualified - choose automotive-grade PIC16F18325-E/P automotive variants (VQFN) where required. 14-pin PDIP uses matte-tin finish compatible with lead-free reflow.
