PIC16LF727-I/ML - 14KB Flash 20MHz 8-bit MCU | Microchip 44-QFN
MPN: PIC16LF727-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.94 | $2.94 |
| 10 | $2.65 | $26.50 |
| 100 | $2.35 | $235.00 |
| 500 | $2.1 | $1,050.00 |
| 1,000 | $1.88 | $1,880.00 |
PIC16LF727-I/ML Overview
A microcontroller (MCU) is a single-chip computer that contains a processor core, program and data memory, and integrated peripherals. The PIC16 family uses a RISC-based 8-bit core optimized for deterministic behavior and low power consumption, and the LF prefix indicates a wide-voltage CMOS variant suitable for battery-powered designs. PIC16F/LF MCUs sit below PIC18 and dsPIC parts in Microchip's 8-bit hierarchy while offering higher pin counts and richer peripherals than baseline PIC10/12/16 devices.
Key features include nanoWatt XLP technology for sub-microamp sleep currents, a brown-out reset (BOR) circuit, a 10-bit Pulse-Width Modulation (PWM) module, up to four 8-bit timers plus one 16-bit timer, and an ICD (In-Circuit Debug) interface. The integrated 16-level hardware stack and 49 instruction word set simplify firmware development in MPLAB X IDE with XC8 compiler support.
The 44-QFN (ML) package provides compact board mounting for space-constrained designs while exposing up to 36 I/O pins. Internal 16 MHz and 32 MHz LF oscillator options reduce external component count, and an internal 31 kHz LF oscillator supports low-power real-time-clock-style applications. Peripherals share flexible pin-mapping via Peripheral Pin Select (PPS) where applicable.
Typical applications include consumer appliances, IoT sensor nodes, battery-powered instruments, LED lighting controllers, small motor control (PWM-driven), remote controls, USB-HID bridges via external transceiver, and industrial sensor interfaces. The combination of low power, ample Flash, and rich analog peripherals makes it well suited for mixed-signal front-end designs.
When designing with this part, allocate decoupling capacitors (100 nF and 10 uF) close to VDD/AVDD/VSS, ensure the ICSPDAT/ICSPCLK pins are accessible for in-circuit programming, and validate the MCLR pull-up network. For low-power targets, use the nanoWatt XLP sleep modes with WDT disabled and follow the datasheet's IDD vs. VDD curves for accurate battery-life modeling.
This page synthesizes distributor pricing, drop-in package-compatible alternatives from Microchip's PIC16 portfolio, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF727-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 PIC16LF727-I/ML (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Timers, Internal Oscillator.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF727-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF727-E/ML
✅ Drop-In✓ In Stock
$2.7 / Unit
View Datasheet →PIC16LF726-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF722-I/ML
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16LF722A-I/ML
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC16LF1939-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.98 / Unit
View Datasheet →PIC16LF727-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16 RISC |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| RAM | 368 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 20 MHz |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 8-bit, 14 channels |
| PWM Modules | 10-bit, up to 4 outputs |
| Timers | 4 x 8-bit + 1 x 16-bit |
| Communication Interfaces | I2C, SPI, EUSART (Enhanced USART) |
| Low-Power Technology | nanoWatt XLP |
| Brown-out Reset | Yes (BOR) |
| Operating Temperature | -40 C to +85 C (Industrial -I grade) |
| Package | 44-pin QFN (8x8 mm) - ML |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| RoHS Status | Compliant |
PIC16LF727-I/ML Pin Configuration
| Pin 1 | RA0/AN0/C1IN+/ICSPDAT — Digital I/O / Analog input / Comparator input / ICD data |
| Pin 2 | RA1/AN1/C1IN-/ICSPCLK — Digital I/O / Analog input / Comparator input / ICD clock |
| Pin 3 | RA2/AN2 — Digital I/O / Analog input |
| Pin 4 | RA3/AN3/VREF+ — Digital I/O / Analog input / ADC positive reference |
| Pin 5 | RA4/AN4 — Digital I/O / Analog input |
| Pin 6 | RA5/AN5 — Digital I/O / Analog input |
| Pin 7 | RA6 — Digital I/O |
| Pin 8 | RA7 — Digital I/O |
| Pin 9 | VSS — Ground |
| Pin 10 | VDD — Positive supply voltage |
| Pin 11 | RB0/AN12 — Digital I/O / Analog input |
| Pin 12 | RB1/AN10 — Digital I/O / Analog input |
| Pin 13 | RB2/AN8 — Digital I/O / Analog input |
| Pin 14 | RB3/AN9 — Digital I/O / Analog input |
| Pin 15 | RB4 — Digital I/O |
| Pin 16 | RB5 — Digital I/O |
| Pin 17 | RB6 — Digital I/O |
| Pin 18 | RB7 — Digital I/O |
| Pin 19 | VSS — Ground |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RC0 — Digital I/O |
| Pin 22 | RC1 — Digital I/O |
| Pin 23 | RC2 — Digital I/O |
| Pin 24 | RC3 — Digital I/O |
| Pin 25 | RC4 — Digital I/O |
| Pin 26 | RC5 — Digital I/O |
| Pin 27 | RC6 — Digital I/O |
| Pin 28 | RC7 — Digital I/O |
| Pin 29 | VSS — Ground |
| Pin 30 | VDD — Positive supply voltage |
| Pin 31 | RD0 — Digital I/O |
| Pin 32 | RD1 — Digital I/O |
| Pin 33 | RD2 — Digital I/O |
| Pin 34 | RD3 — Digital I/O |
| Pin 35 | RD4 — Digital I/O |
| Pin 36 | RD5 — Digital I/O |
| Pin 37 | RD6 — Digital I/O |
| Pin 38 | RD7 — Digital I/O |
| Pin 39 | VSS — Ground |
| Pin 40 | VDD — Positive supply voltage |
| Pin 41 | RE0 — Digital I/O |
| Pin 42 | RE1 — Digital I/O |
| Pin 43 | RE2 — Digital I/O |
| Pin 44 | MCLR/VPP — Master clear reset / programming voltage |
Typical Applications
PIC16LF727-I/ML is suitable for 6 applications: Battery-Powered IoT Sensor Node, Consumer Appliance Control Panel, LED Lighting Controller, Small Motor and Fan Controller, Industrial Sensor Interface Module, Remote Control and HID Device.
Battery-Powered IoT Sensor Node
The PIC16LF727-I/ML is well matched to battery-powered IoT sensor nodes thanks to its nanoWatt XLP technology delivering sub-microamp sleep currents and its wide 1.8V to 5.5V operating range that supports 2xAA, coin-cell, or single-cell Li-ion chemistries directly. With 14 KB of Flash, the part can host sensor drivers, a small MQTT-SN or LoRaWAN stack, and application logic without external memory. The 14-channel 8-bit ADC digitizes multiple analog sensors (temperature, light, voltage) while the EUSART and I2C peripherals drive radio or sensor modules. Power dissipation in sleep with watchdog disabled is in the hundreds of nA, enabling multi-year battery life when duty-cycled.
Recommended
Consumer Appliance Control Panel
In consumer appliance control panels (washing machines, microwave ovens, coffee makers, air purifiers), the PIC16LF727-I/ML drives LED or 7-segment displays via its PWM and GPIO, reads keypads through ADC or matrix scanning, and communicates with motor or sensor subsystems through I2C or SPI. Its 36 I/O pins accommodate multi-button interfaces, multiple status LEDs, and rotary encoders. The 256-byte EEPROM stores user settings (mode, timer values) that persist across power cycles, and the brown-out reset prevents corruption during brown-outs typical of inductive loads. Industrial temperature grade (-40 to +85 C) suits kitchen and laundry environments.
Recommended
LED Lighting Controller
The PIC16LF727-I/ML is a strong fit for LED lighting controllers - its 10-bit PWM module with up to 4 outputs drives RGB or RGBW channels directly through MOSFET gates, and its 14-channel ADC reads ambient light sensors and potentiometer dimming inputs. The 1.8V to 5.5V supply range allows direct operation from rectified 3.3V or 5V rails without additional regulation. With 14 KB of Flash, designers can implement smooth logarithmic dimming curves, color-temperature presets, and simple DMX-512 or DALI receive logic in firmware. The 256-byte EEPROM stores the last user setting after power-down.
Recommended
Small Motor and Fan Controller
The PIC16LF727-I/ML drives small DC motors, fans, or blowers via its 10-bit PWM outputs connected to logic-level MOSFET gates or H-bridge driver ICs. Its four 8-bit timers plus one 16-bit timer provide the resolution needed for closed-loop RPM control via tachometer feedback, while the EUSART interface accepts speed commands from a host processor. With 36 I/O pins, multiple motors or fan channels can be driven from a single MCU. nanoWatt XLP sleep mode is valuable when the appliance is in standby - the controller draws microamps and wakes on button press or serial command.
Recommended
Industrial Sensor Interface Module
In industrial sensor interface modules (4-20 mA loops, bridge amplifiers, RTD conditioners), the PIC16LF727-I/ML digitizes analog signals with its 14-channel 8-bit ADC, performs linearization and scaling in firmware, and transmits results via RS-485 (EUSART) or isolated I2C. The industrial -40 to +85 C temperature range supports factory floor environments, and the wide 4.0V to 5.5V operation at 20 MHz handles the supply ripple common in industrial 24V-bus systems. The 256-byte EEPROM stores calibration coefficients unique to each sensor module.
Recommended
Remote Control and HID Device
The PIC16LF727-I/ML is well suited for handheld remote controls, presentation clickers, and simple USB-HID bridges - its nanoWatt XLP sleep current of sub-microamp extends battery life to multiple years on coin cells, while the 14 KB Flash supports capacitive-touch button scanning via the CTMU peripheral and complex IR or RF protocols. The 14-channel ADC reads multi-axis joysticks or potentiometers, and the 10-bit PWM drives IR LEDs for line-of-sight transmission. Multiple communication peripherals (I2C, SPI, EUSART) enable connection to companion BLE or LoRa modules.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF727-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF727-E/ML | PIC16LF726-I/ML | PIC16LF722-I/ML | PIC16LF722A-I/ML | PIC16LF1939-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8 mm) - ML | 44-QFN (8x8 mm) - ML - same | 44-QFN (8x8 mm) - ML - same | 44-QFN (8x8 mm) - ML - same | 44-QFN (8x8 mm) - ML - same | 44-QFN (8x8 mm) - ML - same |
| Flash Memory | 14 KB | 14 KB - same | 14 KB - same | 4 KB (-71%) | 4 KB (-71%) | 16 KB (+14%) |
| RAM | 368 bytes | 368 bytes - same | 368 bytes - same | 128 bytes (-65%) | 128 bytes (-65%) | 1024 bytes (+178%) |
| CPU Frequency | 20 MHz | 20 MHz - same | 20 MHz - same | 20 MHz - same | 20 MHz - same | 32 MHz (+60%) |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V - same | 1.8 V to 5.5 V - same | 1.8 V to 5.5 V - same | 1.8 V to 5.5 V - same | 1.8 V to 5.5 V - same |
| Temperature Grade | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C - same | -40 C to +85 C - same | -40 C to +85 C - same | -40 C to +85 C - same |
Key Differentiators
- Highest Flash in 44-QFN PIC16F/LF7xx family (vs PIC16LF722-I/ML)
- Wide 1.8 V to 5.5 V supply range (vs PIC16F727-I/ML)
- nanoWatt XLP extreme-low-power technology (vs PIC16LF1939-I/ML)
- 14-channel 8-bit ADC with sleep-mode operation (vs PIC16LF722A-I/ML)
Design Notes
Place a 100 nF decoupling capacitor as close as possible to each VDD pin (10, 20, 30, 40), and a single 10 uF bulk capacitor near the package. Add a 100 nF capacitor on AVDD/AVSS if present. For nanoWatt XLP designs, follow the datasheet's IDD vs. VDD curves - estimated: at 3.3 V with 16 MHz HFINTOSC active, typical IDD is around 1.5 mA; with the MCU in sleep and WDT disabled, IDD drops to sub-microamp. Disable unused peripherals in firmware to minimize sleep current.
Do not leave the MCLR pin floating - connect a 10 kOhm pull-up to VDD. The ICSPDAT and ICSPCLK pins (RA0/RA1) are shared with general I/O and must be accessible for in-circuit programming; if used as outputs, ensure the load does not prevent debugger communication. Use configuration bits to disable the watchdog timer in low-power designs unless explicit WDT wake-up is needed. Read the configuration word carefully: PIC16LF727 uses a 14-bit configuration register at address 0x2007.
The 44-QFN (ML) package requires careful PCB thermal management. The exposed thermal pad (EP) on the bottom of the package must be soldered to a copper pad on the PCB, with at least 8 thermal vias connecting to an internal ground plane to dissipate heat in high-current applications. Although the LF727 is not a high-power device, proper EP soldering improves mechanical reliability and reduces ground bounce. Keep the QFN land pattern per IPC-7351 nominal with 0.4 mm pad pitch.
Route the crystal/oscillator traces (if using external oscillator) short and symmetric, with a guard ground ring to reduce EMI coupling. Keep ADC analog traces (AN0-AN13) away from switching digital traces to minimize crosstalk. Place the ICSP connector on the board edge or accessible test point area for production programming. The EUSART TX/RX lines should be length-matched if used at high baud rates (>115200) to avoid signal integrity issues.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC16F/LF7xx -E variants or PIC18F family for automotive. Lead-free finish per JEDEC J-STD-020 MSL3.
