PIC16LF1718-I/ML - 8-Bit 32MHz XLP MCU 28KB Flash | Microchip
MPN: PIC16LF1718-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.66 | $2.66 |
| 10 | $2.45 | $24.50 |
| 100 | $2.1 | $210.00 |
| 500 | $1.82 | $910.00 |
| 1,000 | $1.55 | $1,550.00 |
PIC16LF1718-I/ML Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (typically Flash), working RAM, and configurable peripherals such as ADC, timers, communication interfaces and I/O. The 8-bit class trades raw clock speed for deterministic behavior, low cost and very low active/standby power, and PIC microcontrollers use a RISC-based Harvard architecture that executes most instructions in one clock cycle. Within Microchip's portfolio, the PIC16F171x family sits in the mid-range (PIC16) tier with enhanced analog and CIP blocks, positioned between baseline PIC10/12/16F and the PIC18/dsPIC performance lines.
Key features include 28KB (16K x 14 words) Flash, 2KB RAM, 256B EEPROM, 10-bit ADC, two on-chip op amps, two comparators, a 10-bit DAC, up to 28 I/O pins, Peripheral Pin Select, and CIP blocks (CLC, COG, NCO, ZCD). The QFN-28 package exposes the exposed thermal pad (EP) as an additional low-impedance ground and thermal path. The LF silicon supports 1.8V-3.6V operation versus 2.3V-5.5V for the F variant, which is the most important differentiator between PIC16LF1718 and PIC16F1718.
Architecturally, the device uses a RISC core with a 14-bit instruction word and a separate data bus, an internal 32MHz oscillator, and an integrated 10-bit ADC with computation capabilities such as averaging, threshold detection and burst averaging. The on-chip op amps are trimmed and routed through Peripheral Pin Select, enabling closed-loop analog front ends without external amplifiers.
Typical applications include low-power IoT sensor nodes, battery-powered medical and wearable devices, automotive body and lighting control, industrial sensor conditioning, consumer appliances, and mixed-signal front-end signal conditioning for actuators and sensors. The 28-QFN footprint suits compact PCBs where routing density matters more than hand-prototyping convenience.
When designing with this device, plan analog pin assignments carefully because on-chip op amps, ADC channels and Peripheral Pin Select share pins. Keep the exposed pad soldered to a continuous ground pour for thermal dissipation and ground integrity, and respect the LF voltage range (1.8V-3.6V) when migrating from F-silicon designs.
This page synthesizes distributor pricing and inventory, drop-in package-compatible alternatives drawn from the PIC16F/LF171x family, and practical engineering guidance not duplicated in the manufacturer datasheet - giving procurement, firmware and hardware teams a single source of truth for part selection.
Drop-in alternatives for PIC16LF1718-I/ML — 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 PIC16LF1718-I/ML (same form factor and footprint) — differing in Package, Program Memory (Flash), ADC, Operating Temperature, Comparators.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1718-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1717-I/PT
✅ Drop-In✓ In Stock
$1.45 / Unit
View Datasheet →PIC16LF1709-I/ML
✅ Drop-In✓ In Stock
$1.21 / Unit
View Datasheet →PIC16LF1619-I/ML
✅ Drop-In✓ In Stock
$1.32 / Unit
View Datasheet →PIC16LF1559-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1718-I/ML Maximum Ratings & Electrical Characteristics
| Family | PIC16F/LF171x |
| Core | 8-bit PIC RISC (Harvard), 14-bit instruction word |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| RAM | 2 KB |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage (LF silicon) | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial, -I suffix) |
| ADC | 10-bit, with computation (ADC2) |
| On-chip Operational Amplifiers | 2 |
| Comparators | 2 |
| DAC | 10-bit |
| I/O Pins | Up to 28 |
| Peripheral Pin Select (PPS) | Yes |
| Core Independent Peripherals | CLC, COG, NCO, ZCD |
| Package | 28-pin QFN (6x6 mm), designation ML |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16LF1718-I/ML Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O / analog input / op-amp output |
| Pin 2 | RA4 — Bidirectional I/O / analog input |
| Pin 3 | RA3 — Bidirectional I/O / analog input / MCLR |
| Pin 4 | RA2 — Bidirectional I/O / analog input |
| Pin 5 | RA1 — Bidirectional I/O / analog input / OPA1IN- |
| Pin 6 | RA0 — Bidirectional I/O / analog input / OPA1OUT |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply (1.8V-3.6V LF) |
| Pin 9 | RA7 — Bidirectional I/O / analog input / OPA2IN- |
| Pin 10 | RA6 — Bidirectional I/O / analog input / OPA2OUT |
| Pin 11 | RC0 — Bidirectional I/O / analog input / SOSCO |
| Pin 12 | RC1 — Bidirectional I/O / analog input / SOSCI |
| Pin 13 | RC2 — Bidirectional I/O / analog input |
| Pin 14 | RC3 — Bidirectional I/O / analog input |
| Pin 15 | RC4 — Bidirectional I/O / analog input |
| Pin 16 | RC5 — Bidirectional I/O / analog input |
| Pin 17 | RC6 — Bidirectional I/O / analog input / TX |
| Pin 18 | RC7 — Bidirectional I/O / analog input / RX |
| Pin 19 | RB7 — Bidirectional I/O / analog input / ICSPDAT |
| Pin 20 | RB6 — Bidirectional I/O / analog input / ICSPCLK |
| Pin 21 | RB5 — Bidirectional I/O / analog input |
| Pin 22 | RB4 — Bidirectional I/O / analog input |
| Pin 23 | RB3 — Bidirectional I/O / analog input |
| Pin 24 | RB2 — Bidirectional I/O / analog input |
| Pin 25 | RB1 — Bidirectional I/O / analog input |
| Pin 26 | RB0 — Bidirectional I/O / analog input / INT |
| Pin 27 | VSS — Ground reference (also routed via EP) |
| Pin 28 | VDD — Positive supply (also routed via EP) |
Typical Applications
PIC16LF1718-I/ML is suitable for 6 applications: Battery-Powered IoT Sensor Node, Wearable Health and Fitness Device, Industrial Sensor Transmitter (4-20 mA / 0-10 V), Automotive Body and Lighting Module, Smart Home and Appliance Control, Portable Consumer Accessory (HID, Earbud Charger, Toy).
Battery-Powered IoT Sensor Node
The PIC16LF1718-I/ML suits battery-powered IoT sensor nodes because its LF 1.8V-3.6V supply range and XLP architecture minimize quiescent current while 28KB Flash and 2KB RAM fit typical sensor-fusion, BLE-comms and edge-processing firmware. Its 10-bit ADC2 with computation, dual on-chip op amps and CLC/COG/NCO/ZCD Core Independent Peripherals enable sensor conditioning, threshold detection and waveform synthesis without external parts. A 32MHz internal oscillator eliminates an external crystal, dropping BOM count and standby current further - critical when nodes run for years on a coin cell.
Recommended
Wearable Health and Fitness Device
For wearable health and fitness devices, the PIC16LF1718-I/ML delivers the low active and standby currents needed to extend battery life while integrating the analog front end on-chip. Its two on-chip op amps can bias a photoplethysmography (PPG) sensor or a thermistor bridge, and the 10-bit ADC2 with averaging reduces noise on small biosignals without burdening the CPU. The Peripheral Pin Select feature remaps serial I/O to spare pins, allowing a compact 28-QFN PCB layout under 10x10 mm typical for wristband form factors.
Recommended
Industrial Sensor Transmitter (4-20 mA / 0-10 V)
In a 4-20 mA loop-powered or 0-10 V industrial sensor transmitter, the PIC16LF1718-I/ML acts as both signal conditioner and protocol controller. The on-chip op amps implement the bridge excitation and instrumentation amplifier stages, while the 10-bit DAC drives the output stage precisely. The 1.8V minimum supply lets the MCU run directly from a low-voltage LDO fed from the loop, simplifying power architecture. PPS routes UART/SPI to any convenient pin, easing PCB routing in crowded sensor heads.
Recommended
Automotive Body and Lighting Module
For automotive body electronics and lighting modules, the PIC16LF1718-I/ML is acceptable for non-safety subsystems such as interior lighting, ambient lighting controllers, or door-module logic, while for AEC-Q100-qualified automotive variants Microchip offers the PIC16F1718 family. The 32MHz core provides the timing resolution needed for PWM dimming and LED color-mixing, and the COG (Complementary Output Generator) peripheral produces dead-band-controlled complementary PWM without CPU overhead. The QFN-28 package reduces PCB area vs equivalent SOIC designs - useful in space-constrained lamp clusters.
Recommended
Smart Home and Appliance Control
Smart-home hubs and white-goods control boards benefit from the PIC16LF1718-I/ML's mix of 28KB Flash for protocol stacks (Sub-GHz RF, Zigbee end-device, or custom mesh), 2KB RAM for buffers, and on-chip analog for sensing temperature, humidity or current. CLC and NCO peripherals implement custom waveform generation and frequency synthesis in hardware, freeing the CPU for communication housekeeping. The exposed-pad QFN-28 footprint simplifies reflow and yields excellent thermal performance for thermally loaded appliance boards.
Recommended
Portable Consumer Accessory (HID, Earbud Charger, Toy)
For HID peripherals, earbud charging cases and battery-powered toys, the PIC16LF1718-I/ML offers sufficient Flash for USB-HID class firmware, BLE controller bridging, or motor/audio control loops at very low cost. The LF voltage range is well matched to single-cell Li-ion or Li-poly chemistries that drop to 3.0 V under load, while the 32MHz core keeps latency low for human-interface responsiveness. The QFN-28 (6x6 mm) package footprint is friendlier to small PCBs than SOIC or TSSOP, and the exposed pad handles brief peak loads from motors or audio drivers.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1718-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1718-I/ML | PIC16LF1717-I/PT | PIC16LF1709-I/ML | PIC16LF1619-I/ML | PIC16LF1559-I/ML |
|---|---|---|---|---|---|---|
| Package | QFN-28 (6x6 mm) ML | QFN-28 (6x6 mm) ML - same | TQFP-44 PT family (28-pin family) | QFN-28 (6x6 mm) ML - same | QFN-28 (6x6 mm) ML - same | QFN-28 (6x6 mm) ML - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Architecture | 8-bit PIC16 RISC, 32 MHz | 8-bit PIC16 RISC, 32 MHz | 8-bit PIC16 RISC, 32 MHz | 8-bit PIC16 RISC, 32 MHz | 8-bit PIC16 RISC, 32 MHz | 8-bit PIC16 RISC, 32 MHz |
| Operating Voltage (LF silicon) | 1.8 V to 3.6 V | 2.3 V to 5.5 V (F silicon) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Core Independent Peripherals (CLC/COG/NCO/ZCD) | Yes (full set) | Yes (full set) | Yes (full set) | Partial | Partial | Partial |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Highest LF-family Flash density in QFN-28 within the PIC16F/LF171x line (vs PIC16LF1717-I/PT)
- Same footprint, higher supply tolerance via F silicon (vs PIC16F1718-I/ML)
- Broader Core Independent Peripheral coverage than LF1709/LF1559 (vs PIC16LF1709-I/ML)
Design Notes
The QFN-28 (6x6 mm) package exposes a large central thermal pad (EP) on pin 27/28 that must be soldered to a continuous ground pour to meet Microchip's published theta_JA thermal rating (around 31.6 C/W on a 4-layer JEDEC test board). Skip via-in-pad unless the fab supports microvia; use an array of 0.3 mm thermal vias to the inner ground plane for best heat extraction. The exposed pad also serves as the primary low-impedance ground return for the on-chip op amps and ADC - star-grounding the EP ensures analog accuracy.
Place a 100 nF decoupling capacitor as close as possible to VDD (pin 8) and another on the second VDD pin (pin 28) to suppress switching transients from the core and peripherals. Add a bulk capacitor of 1-10 uF on the same rail close to the MCU. LF silicon only operates from 1.8V-3.6V; for designs that need 5V tolerance, choose the PIC16F1718-I/ML instead.
Do not assume pin-compatible PIC16 parts share identical peripheral routing: PPS mapping differs across PIC16 sub-families, so the LF1718 PPS assignments will not match LF1709, LF1619 or LF1559 PPS tables directly. Always re-validate PPS lock registers when migrating firmware, and verify that op-amp inputs and outputs land on the right pads for your schematic. Pin 3 doubles as MCLR on reset; if used as a regular I/O, configure MCLRE=OFF in the configuration words to free the pin.
Compliance Information
Industrial-grade (-40C to +85C) part per Microchip product page. Not AEC-Q100 qualified - choose a Q1 automotive variant of PIC16F1718 for safety-relevant or in-cabin automotive applications. RoHS and lead-free per Microchip packaging materials declaration.
