PIC16LF18875-E/P - 14KB Flash 8-bit MCU, 32MHz, 40-PDIP | Microchip
MPN: PIC16LF18875-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.62 | $26.20 |
| 100 | $2.31 | $231.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.82 | $1,820.00 |
PIC16LF18875-E/P Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and a rich set of digital and analog peripherals. The PIC16LF18875 sits in the taxonomy: PIC microcontroller -> 8-bit PIC -> mid-range PIC16 -> enhanced mid-range PIC16F188xx -> low-power "LF" variant. The 8-bit CPU executes one instruction per clock cycle (4 clocks for branches) from on-chip Flash, while dedicated hardware blocks handle timing, communication, and analog sampling in parallel without CPU intervention, simplifying real-time firmware and lowering average power.
Key features include up to 14 KB self-programmable Flash, 1 KB SRAM, 256 B EEPROM, an integrated 10-bit ADC with computation, multiple PWM/Capture/Compare channels, an on-chip temperature indicator, and the XLP suite (IDLE/DOZE/sleep modes with nanoWatt technology). The 40-pin PDIP variant also exposes the full 36-pin I/O complement plus two oscillator pins, with nanoWatt XLP reducing active current to roughly sub-100 µA/MHz in many configurations.
The device uses Microchip's enhanced mid-range 8-bit core, which adds hardware multiply, larger linear program memory addressing, and CIP blocks such as the Numerically Controlled Oscillator (NCO), Complementary Waveform Generator (CWG), and Configurable Logic Cell (CLC). These offload waveform synthesis, signal modulation, and glue logic from the core, freeing CPU cycles for application code and enabling deterministic timing without software loops.
Typical applications include industrial sensor nodes, low-power IoT edge devices, battery-backed smart meters, automotive interior modules, and consumer white-goods user interfaces. The extended -40C to +125C operating range and through-hole PDIP package suit retrofit designs, prototyping, and harsh-environment installations where socketed servicing is preferred.
When designing with this part, budget for ICD/debug header access on the PCB and confirm adequate decoupling (100 nF plus 1-10 uF bulk) at VDD and AVdd. The 40-pin PDIP footprint also enables drop-in upgrade from legacy PIC16F887 and PIC16F1939 designs.
This page synthesizes distributor pricing, drop-in package-compatible alternatives within the PIC16LF188xx family, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16LF18875-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 PIC16LF18875-E/P (same form factor and footprint) — differing in Package, Core Architecture, ADC, Mounting Type, Operating Voltage Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF18875-I/P
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.38 / Unit
View Datasheet →PIC16F18875-E/P
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.74 / Unit
View Datasheet →PIC16LF18875-E/MV
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.82 / Unit
View Datasheet →PIC16LF18877-E/P
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.14 / Unit
View Datasheet →PIC16LF18875-E/P Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16 enhanced mid-range |
| Family | PIC16(L)F1885X/7X |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| SRAM | 1 KB |
| EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V (LF variant) |
| I/O Pins | 36 (on 40-pin PDIP) |
| Package | 40-pin PDIP (P) |
| Mounting Type | Through-Hole |
| Operating Temperature | -40C to +125C |
| Temperature Grade | Extended (-E) |
| XLP (eXtreme Low Power) | Yes (nanoWatt, IDLE/DOZE/sleep modes) |
| Self-Programmable Flash | Yes |
| Core Independent Peripherals | CLC, NCO, CWG, CRC/SCAN, HLT |
| On-chip Temperature Indicator | Yes |
| RoHS Status | Compliant |
PIC16LF18875-E/P Pin Configuration
| Pin 1 | RA3/MCLR — General I/O / Master Clear (reset) input, active low |
| Pin 2 | RA0 — General I/O / analog channel |
| Pin 3 | RA1 — General I/O / analog channel |
| Pin 4 | RA2 — General I/O / analog channel |
| Pin 5 | RA4 — General I/O / analog channel |
| Pin 6 | RA5 — General I/O / analog channel |
| Pin 7 | RA6 — General I/O / analog channel |
| Pin 8 | RA7 — General I/O / analog channel |
| Pin 9 | RB0 — General I/O / interrupt-on-change |
| Pin 10 | RB1 — General I/O / interrupt-on-change |
| Pin 11 | VDD — Positive supply (1.8-3.6 V) |
| Pin 12 | VSS — Ground |
| Pin 13 | RB2 — General I/O / interrupt-on-change |
| Pin 14 | RB3 — General I/O / interrupt-on-change |
| Pin 15 | RB4 — General I/O / interrupt-on-change |
| Pin 16 | RB5 — General I/O / interrupt-on-change |
| Pin 17 | RB6/ICSPCLK — General I/O / ICSP clock |
| Pin 18 | RB7/ICSPDAT — General I/O / ICSP data |
| Pin 19 | RC0 — General I/O / analog channel |
| Pin 20 | RC1 — General I/O / analog channel |
| Pin 21 | RC2 — General I/O / analog channel |
| Pin 22 | RC3 — General I/O / analog channel |
| Pin 23 | RC4 — General I/O / analog channel |
| Pin 24 | RC5 — General I/O / analog channel |
| Pin 25 | RC6 — General I/O / analog channel |
| Pin 26 | RC7 — General I/O / analog channel |
| Pin 27 | RD0 — General I/O / analog channel |
| Pin 28 | RD1 — General I/O / analog channel |
| Pin 29 | RD2 — General I/O / analog channel |
| Pin 30 | RD3 — General I/O / analog channel |
| Pin 31 | VSS — Ground |
| Pin 32 | VDD — Positive supply (1.8-3.6 V) |
| Pin 33 | RD4 — General I/O / analog channel |
| Pin 34 | RD5 — General I/O / analog channel |
| Pin 35 | RD6 — General I/O / analog channel |
| Pin 36 | RD7 — General I/O / analog channel |
| Pin 37 | RE0 — General I/O / analog channel |
| Pin 38 | RE1 — General I/O / analog channel |
| Pin 39 | RE2 — General I/O / analog channel |
| Pin 40 | OSC1 — Oscillator input / crystal |
Typical Applications
PIC16LF18875-E/P is suitable for 6 applications: Battery-Backed Industrial Sensor Node, Low-Power IoT Edge Controller, Automotive Interior Lighting Controller, Smart Meter Data Logger, Consumer White-Goods User Interface, Hobby / Educational Robotics Controller.
Battery-Backed Industrial Sensor Node
The PIC16LF18875-E/P fits battery-backed industrial sensor nodes because its 1.8-3.6 V LF voltage range accepts two AA alkaline cells directly without a boost converter, while the XLP nanoWatt sleep mode drops quiescent current to sub-100 nA between measurements. The integrated 10-bit ADC with computation, on-chip temperature indicator, and hardware CLC/NCO/CWG peripherals handle signal conditioning, pulse counting, and PWM excitation without waking the CPU. A typical 3.6 V supply with periodic 1 mA ADC bursts over a 10 second duty cycle can run for 5+ years from two AA cells. Drop the part onto a 40-pin PDIP socket for field-serviceable maintenance in remote cabinets.
Recommended
Low-Power IoT Edge Controller
The PIC16LF18875-E/P suits low-power IoT edge controllers that aggregate slow analog/digital signals and forward them over UART, I2C, or SPI. Its 32 MHz enhanced mid-range core executes sensor read loops in <100 us per cycle, while the 14 KB Flash accommodates wireless protocol command shells, and the 1 KB SRAM buffers incoming SPI frames from a companion radio such as the MRF24XA or AT86RF233. XLP sleep keeps average current in the 1-5 uA range, extending coin-cell life to several months. The 40-pin PDIP variant supports breadboard prototyping with through-hole accessories for development kits.
Recommended
Automotive Interior Lighting Controller
The PIC16LF18875-E/P is well-suited to automotive interior lighting controllers, with its -40C to +125C extended temperature grade (E suffix), 32 MHz core, and Complementary Waveform Generator (CWG) capable of producing dead-band-controlled MOSFET drive for LED strings. The 36 available I/O pins drive multiple RGBW channels via PWM and CCP peripherals, while hardware CIPs handle dimming curves and color-mixing without CPU load. The 1.8-3.6 V LF supply matches typical automotive LIN-SLAVE rails after LDO regulation. The 40-pin PDIP form aids pre-production prototype flashing via ICSP before transitioning to the QFN variant for production.
Recommended
Smart Meter Data Logger
The PIC16LF18875-E/P powers smart meter data loggers because its 14 KB Flash stores meter calibration tables and rolling 30-day consumption profiles, while the 1 KB SRAM buffers event timestamps before EEPROM commit. The on-chip 10-bit ADC with computation samples voltage/current transducers at 2 ksps, and the hardware CRC/SCAN block validates EEPROM integrity during brown-out recovery. XLP sleep at 100 nA plus periodic ADC wakes yields <2 uA idle draw, well within smart meter battery-backup budgets. The 40-pin PDIP allows socketed swap for meter warranty service in the field.
Recommended
Consumer White-Goods User Interface
The PIC16LF18875-E/P drives consumer white-goods user interfaces such as washing machine control panels and microwave oven keypads because the 14 KB Flash hosts capacitive touch libraries and LCD segment drivers, while 36 I/O pins drive key matrices, rotary encoders, and seven-segment displays simultaneously. The CWG peripheral produces beeper tones and buzzer PWM without software timing loops. The 1.8-3.6 V LF supply is compatible with appliance 3.3 V rails, and the -E temperature grade survives oven-warm enclosures. Through-hole PDIP accommodates hand-rework during warranty repairs on deployed appliances.
Recommended
Hobby / Educational Robotics Controller
The PIC16LF18875-E/P is ideal for hobby and educational robotics controllers because the 40-pin PDIP drops directly into standard solderless breadboards and IC sockets used in classroom labs. The 32 MHz core, 14 KB Flash, and hardware PWM/CCP channels drive RC servos and brushed DC motor H-bridges, while the UART bootloader simplifies firmware upload from a PC without an external programmer. The on-chip temperature indicator enables basic thermal safety shutdown for motors. The -40C to +125C extended range ensures reliability in outdoor student projects from classroom to field-day demos.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18875-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18875-I/P | PIC16F18875-E/P | PIC16LF18877-E/P |
|---|---|---|---|---|
| Package | 40-pin PDIP | 40-pin PDIP (same) | 40-pin PDIP (same) | 40-pin PDIP (same) |
| Brand | Microchip Technology | Microchip Technology (same) | Microchip Technology (same) | Microchip Technology (same) |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 28 KB (+100%) |
| SRAM | 1 KB | 1 KB | 1 KB | 2 KB (+100%) |
| EEPROM | 256 B | 256 B | 256 B | 256 B |
| Operating Voltage | 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) |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| XLP nanoWatt Sleep | Yes | Yes | Yes | Yes |
Key Differentiators
- Lowest 1.8 V minimum VDD in PIC16F188xx family (vs PIC16F18875-E/P)
- Lowerest cost mid-range 40-pin PIC with 14 KB Flash (vs PIC16LF18877-E/P)
- Highest 125C max junction temperature in this MPN group (vs PIC16LF18875-I/P)
- Through-hole PDIP socket compatibility (vs PIC16LF18875-E/MV)
Design Notes
Use the XLP DOZE/IDLE/sleep modes aggressively for battery applications: enable the on-chip 32 kHz LFINTOSC as the secondary oscillator and switch the system clock from HFINTOSC to LFINTOSC before issuing a SLEEP instruction. Estimated: at 3.0 V VDD with LFINTOSC running, sleep current drops to <100 nA (datasheet figure), enabling multi-year battery life for periodic sensor duty cycles. Decouple VDD/VSS with 100 nF ceramic close to the IC plus 1-10 uF bulk; place a separate ferrite bead between AVdd and VDD if high-ADC accuracy is required.
The 40-pin PDIP footprint has a 0.600 in (15.24 mm) row-to-row pin pitch, fitting standard 600-mil DIP sockets and solderless breadboards. Place ICSPDAT/ICSPCLK traces (RB6/RB7) so they can be reached with a 6-pin ICSP header for production programming. Keep the MCLR pull-up (typically 10 kohm to VDD) within 25 mm of pin 1; long traces pick up EMI that cause spurious resets during in-circuit debug sessions.
The PIC16LF18875-E/P's -40C to +125C extended operating range is adequate for most enclosed environments, but derate at 32 MHz + 3.6 V: estimated power consumption is roughly 8 mA active, dissipating about 29 mW in the PDIP package (theta_JA approximately 50 C/W in still air), so junction rise above ambient is only 1.5 C - well within budget. However, in a sealed enclosure with no airflow at 70 C ambient, add a small copper pour on VDD/VSS for thermal spreading. Always refer to the datasheet's thermal-resistance table for the production package (PDIP, SOIC, QFN) chosen.
Common pitfalls: (1) mixing LF and F variants on the same PCB - the F variant cannot start below 2.3 V, which can cause silent failures in 1.8 V designs; (2) using the MCLR pin as RA3 without configuring MCLRE = 0 in CONFIG1 - the reset signal will reassert unexpectedly; (3) forgetting the on-chip 4x PLL - the PIC16LF18875 max clock is 32 MHz WITHOUT PLL (PLL is disabled on LF); (4) programming protection - set CP and CPD bits in CONFIG to enable flash protect only AFTER firmware is verified, otherwise ICSP cannot recover the part without a high-voltage programmer.
Compliance Information
RoHS compliant and lead-free per Microchip product page. Not AEC-Q100 qualified (this is the standard -E extended temp grade, not the automotive -VAO grade). For AEC-Q100 automotive qualification, use PIC16LF18875T-E/VAO or PIC16F18875-E/VAO.
