PIC16LF18325-I/P - 8KB Flash, 32MHz 8-bit MCU | Microchip
MPN: PIC16LF18325-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.28 | $12.80 |
| 100 | $1.14 | $114.00 |
| 500 | $1.02 | $510.00 |
| 1,000 | $0.92 | $920.00 |
PIC16LF18325-I/P Overview
The PIC16 microcontroller family represents one of the most widely deployed 8-bit architectures in the industry. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory (RAM), and a configurable set of peripheral blocks (timers, ADC, communication, I/O) into one package. In the broader system hierarchy, MCUs sit between discrete logic and full microprocessors: they are smaller and lower power than MPU-based systems, yet provide more integrated peripherals than simple logic ICs. The PIC16LF18325 specifically leverages the enhanced mid-range 16F core with Peripheral Pin Select (PPS), giving designers flexibility to remap digital peripherals onto a wide range of physical pins.
Key features of the PIC16LF18325-I/P include: 14KB Flash (8K x 14) program memory, 1KB SRAM, 256B EEPROM, 32MHz maximum CPU clock with a 4-clock-per-instruction cycle yielding 8MIPS peak throughput, 12 ADC channels with 10-bit resolution, Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Numerically Controlled Oscillator (NCO), Complementary Waveform Generator (CWG), and Signal Measurement Timer (SMT). The LF prefix denotes the wide-voltage, low-power variant: 1.8V to 3.6V VDD operation.
Architecturally the part uses a Harvard-class RISC core with separate program and data buses, an 8-level hardware stack, and 49 instructions. PPS, combined with 18 I/O pins, lets the engineer route UART, SPI, I2C, PWM, and other digital peripherals to almost any GPIO. The XLP technology delivers nanoWatt sleep currents in the order of nA with retention, making the device attractive for IoT edge nodes, sensor reporting, and energy-harvesting designs.
Typical applications include battery-operated sensor nodes, IoT end-node controllers, consumer remote controls, low-power metering, and general-purpose embedded control replacing discrete logic. Designers benefit from the same firmware-development ecosystem (MPLAB X IDE, XC8 compiler, MPLAB Code Configurator) used across the entire PIC16 family. Compared to a generic 8051, this part offers higher peripheral integration, lower sleep current, and Pin Select flexibility at comparable cost.
Designers should connect the MCLR pin through a pull-up to VDD for normal operation, provide a 0.1uF decoupling capacitor close to VDD, and ensure unused I/O pins are configured as outputs or inputs with the weak pull-up enabled to minimize quiescent current. The VDD operating range of 1.8V to 3.6V supports direct connection to a single-cell Li-ion or two-AA battery stack in XLP applications.
This page consolidates distributor pricing, exact-footprint drop-in alternatives (14-pin PDIP), and applied design notes not always visible in the manufacturer datasheet itself, helping procurement, hardware, and firmware engineers evaluate PIC16LF18325-I/P at a glance.
Drop-in alternatives for PIC16LF18325-I/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 PIC16LF18325-I/P (same form factor and footprint) — differing in ADC, Program Memory (Flash), Package, Core, Data SRAM.
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No drop-in alternatives available for this product.
Request AlternativesPIC16LF18325-I/P Maximum Ratings & Electrical Characteristics
| Device Family | PIC16LF183xx (PIC16 XLP, enhanced mid-range) |
| Core | 8-bit PIC16 enhanced mid-range RISC |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| SRAM | 1 KB |
| EEPROM | 256 bytes |
| Maximum CPU Clock | 32 MHz |
| Operating Voltage (VDD) | 1.8 V to 3.6 V (LF wide-voltage, XLP) |
| I/O Pins | 18 |
| ADC | 10-bit, up to 12 channels |
| Core Independent Peripherals | CLC, NCO, CWG, SMT, CCP |
| Communication Peripherals | UART, SPI, I2C (via PPS) |
| Peripheral Pin Select (PPS) | Yes |
| Package | 14-pin PDIP (P) |
| Mounting Type | Through-hole (PDIP) |
| Operating Temperature | -40C to +85C (industrial, 'I') |
| RoHS Status | Compliant |
PIC16LF18325-I/P Pin Configuration
| Pin 1 | RA5/MCLR/VPP/ICSPDAT — Digital I/O / Master Clear (reset) / ICSP data; held low to reset the device |
| Pin 2 | RA0/AN0/ICSPCLK — Digital I/O / Analog input channel 0 / ICSP clock |
| Pin 3 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| Pin 4 | RA2/AN2 — Digital I/O / Analog input channel 2 |
| Pin 5 | RA3/AN3/MCLR (with LVP) — Digital I/O / Analog input channel 3 (also MCLR in LVP mode) |
| Pin 6 | RA4/AN4 — Digital I/O / Analog input channel 4 |
| Pin 7 | VDD — Positive supply (1.8 V to 3.6 V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RC0/AN5 — Digital I/O / Analog input channel 5 |
| Pin 10 | RC1/AN6 — Digital I/O / Analog input channel 6 |
| Pin 11 | RC2/AN7 — Digital I/O / Analog input channel 7 |
| Pin 12 | RC3/AN8 — Digital I/O / Analog input channel 8 |
| Pin 13 | RC4/AN9 — Digital I/O / Analog input channel 9 |
| Pin 14 | RC5/AN10 — Digital I/O / Analog input channel 10 |
Typical Applications
PIC16LF18325-I/P is suitable for 6 applications: Battery-Powered IoT Sensor Node, Consumer Remote Control, Industrial Sensor Interface Module, Smart Home Edge Controller, Portable Medical Monitoring Accessory, Hobby Electronics and Education Platform.
Battery-Powered IoT Sensor Node
PIC16LF18325-I/P fits battery-powered IoT sensor nodes because its XLP nanoWatt sleep currents in the nA range and 1.8 V minimum VDD permit multi-year operation on a single CR2032 or pair of AA cells. The 14 KB Flash can hold device drivers for sensors like the Bosch BMP280 (over I2C) and a small protocol stack for periodic reporting. The 10-bit ADC samples a thermistor or a soil-moisture probe on a slow duty cycle, while the SMT (Signal Measurement Timer) plus the CLC provide hardware wake-up without firmware intervention. Compared to a Cortex-M0+ node, this part uses less code space and 40-60% lower sleep current, extending battery life at the cost of lower raw compute.
Recommended
Consumer Remote Control
PIC16LF18325-I/P fits consumer IR or RF remote controls thanks to its 1.8-3.6 V operating range, which matches two-AAA or one-CR2032 cell stacks without an extra LDO. The CWG (Complementary Waveform Generator) and NCO (Numerically Controlled Oscillator) support hardware-generated carrier frequencies for IR (typically 38 kHz) or sub-GHz OOK transmitters, offloading the CPU and saving firmware code space. PPS lets the design map the same UART, SPI or PWM to whichever pins are most convenient, easing PCB layout. The result is a remote that can sit in standby for years on a single cell while still waking on a single key press in under 1 ms.
Recommended
Industrial Sensor Interface Module
PIC16LF18325-I/P fits industrial sensor interface modules that require 4-20 mA loop input or similar industrial signaling alongside a microcontroller with deterministic behavior. The 1.8-3.6 V VDD range supports modern digital isolation levels, while the industrial -40C to +85C operating temperature enables plant-floor deployment. PPS lets the developer route UART to a digital isolation barrier and the I2C master to a 4-20 mA DAC back-end, all without changing the PCB. Compared to 5 V legacy MCUs, the LF variant rejects more digital noise and integrates 18 I/O on a 14-pin footprint for compact module designs.
Recommended
Smart Home Edge Controller
PIC16LF18325-I/P fits smart home edge controllers that need to wake up, take a sensor reading, drive a low-power relay or LED, and return to nA sleep within milliseconds. The CLC (Configurable Logic Cell) combines GPIO inputs into a custom wake-up condition without firmware, allowing instant response to mechanical switch closures. The 1 KB SRAM buffers a short message before asynchronous transmission over UART or SPI to a higher-tier MCU. The 14-pin PDIP package simplifies hand-soldered prototyping for makers and small-scale smart-home products without committing to a reflow oven at low volume.
Recommended
Portable Medical Monitoring Accessory
PIC16LF18325-I/P fits portable medical monitoring accessories such as pill-box reminders or pulse-rate display devices where < 100 uA total system current is mandatory. The 14 KB Flash allows lookup tables for measurement thresholds, the 10-bit ADC reads pulse-oximetry or thermometer analog front-ends, and the LF voltage range supports a single 3 V coin cell. The PPS-routed SPI talks to a small OLED display controller over a few MHz of bandwidth. The optional 'E' (extended temperature) variant PIC16LF18325-E/P falls back when the device must operate in transit or unconditioned environments.
Recommended
Hobby Electronics and Education Platform
PIC16LF18325-I/P fits hobby and education because the 14-pin PDIP through-hole footprint is breadboard-compatible and hand-solderable. The PIC16 instruction set is well documented in textbooks for first-time firmware authors, and MPLAB X IDE plus XC8 compiler are free downloads. The CLC, NCO and CWG peripherals give engineering students exposure to modern Core Independent Peripherals, while PPS teaches pin-routing concepts central to nearly all modern MCUs. Compared with bare AVR or 8051 DIP parts, the PIC16LF18325 offers more integrated peripherals and shorter firmware development cycles for the same learning curve.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18325-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18325-E/P | PIC16F18325-I/P | PIC16LF18324-I/P | PIC16LF18323-I/P | PIC16F18325-E/P | PIC16LF1826-I/P |
|---|---|---|---|---|---|---|---|
| Package | 14-pin PDIP (P) | 14-pin PDIP | 14-pin PDIP | 14-pin PDIP | 14-pin PDIP | 14-pin PDIP | 14-pin PDIP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage (VDD) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) | 1.8 V to 3.6 V (LF) |
| Flash Program Memory | 14 KB (8K x 14 words) | 14 KB | 14 KB | 7 KB (-50%) | 4 KB (-71%) | 14 KB | 3.5 KB (-75%) |
| SRAM | 1 KB | 1 KB | 1 KB | 0.5 KB (-50%) | 0.5 KB (-50%) | 1 KB | 0.256 KB (-74%) |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Core Independent Peripherals (CLC/NCO/CWG/SMT) | Yes (full set) | Yes (full set) | Yes (full set) | Yes (full set) | Yes (subset) | Yes (full set) | No (legacy generation) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +125C (extended) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +125C (extended) | -40C to +85C (industrial) |
Key Differentiators
- Largest Flash in the 14-pin PDIP PIC16LF183xx family (vs PIC16LF18324-I/P)
- Wide-voltage XLP support to 1.8 V (vs PIC16F18325-I/P)
- Modern Core Independent Peripherals (vs PIC16LF1826-I/P)
Design Notes
PIC16LF18325-I/P has nanoWatt XLP sleep modes that drop current to tens of nA with RAM retention. According to the Microchip datasheet, the DOZE and Sleep modes can be combined to further reduce active current at lower CPU frequencies. Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the VDD pin; a bulk 1 uF to 10 uF tantalum or ceramic on the same rail is recommended for switch-heavy loads such as radio modules that share the supply.
For 14-pin PDIP, route the MCLR line on a top-layer trace away from high-frequency edges; place the MCLR pull-up (typically 10 kohm to VDD) close to the pin. Keep analog ADC traces short and guarded by a digital ground or a quiet analog ground island, and place the AVREF (VDD) capacitor at the VDD pin. Routing PPS-mapped peripherals (UART, SPI, I2C) should leave unused pins as digital inputs with weak pull-ups disabled to avoid floating inputs that draw leakage current.
When laying out for 32 MHz operation, place a tight loop around VDD and VSS with 0.1 uF decoupling to suppress ringing. Avoid running long traces parallel to the HFINTOSC-derived CLKOUT pin. Pin 1 (RA5/ICSPDAT) and pin 2 (RA0/ICSPCLK) are the ICSP lines for programming; route a 2-pin ICSP header close to them so the PIC-KIT programmer can attach without crossing other signal traces.
Estimated: maximum source current per I/O pin is 25 mA per the datasheet; sinking similar 25 mA. Combined VDD/VSS current must stay within the package dissipation limit (about 200 mA for PDIP). A common pitfall is leaving MCLR floating - always tie it through a 10 kohm pull-up to VDD or the device will randomly reset, especially in noisy environments. Another frequent error is failing to configure the ADC channel and acquisition time after switching analog channels, producing noisy or wrong readings.
Compliance Information
RoHS and lead-free per Microchip product page; not AEC-Q100 qualified (industrial/consumer focus).
