PIC16LF1614T-I/ML - 8-bit 32MHz MCU 7KB Flash 16-QFN | Microchip
MPN: PIC16LF1614T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.55 | $1.55 |
| 10 | $1.4 | $14.00 |
| 100 | $1.2 | $120.00 |
| 500 | $1.08 | $540.00 |
| 1,000 | $0.96 | $960.00 |
PIC16LF1614T-I/ML Overview
A microcontroller (MCU) is an integrated circuit containing a CPU, non-volatile program memory (Flash/ROM), volatile data memory (RAM), and configurable peripherals such as timers, comparators, ADCs, and communication interfaces on a single die. The PIC16 architecture is a Harvard-type RISC core with a 14-bit instruction word optimized for deterministic single-cycle execution. Within the power management hierarchy, microcontrollers sit at the application layer, executing control logic and driving actuators that regulators like LDOs and DC-DC converters supply with stable voltage. The "LF" prefix designates the low-voltage Flash variant suitable for 1.8V-3.6V operation.
Key differentiating features include the integrated Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Numerically Controlled Oscillator (NCO), and Complementary Waveform Generator (CWG), which offload timing-critical functions from the core to reduce code complexity and power consumption. The device also offers 2 comparators, up to 9 timers, a 10-bit ADC, and an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) for serial communication. The XLP designation ensures nanoWatt technology with sleep currents in the nanoampere range, enabling multi-year battery life.
The PIC16LF1614T-I/ML's 16-QFN (4x4 mm) exposed-pad package provides excellent thermal performance for the LF silicon, supports surface-mount reflow assembly, and integrates into compact designs where PCB area is at a premium. Operating junction temperature spans -40C to +85C (-I grade), satisfying industrial environment requirements.
Typical applications include IoT sensor nodes, low-power wireless remote controls, BLDC motor control with CIP-assisted commutation, LED lighting controllers, and battery-powered home automation devices. The integrated NCO and CWG make this MCU particularly attractive for waveform generation, FAN control, and lighting dimming applications.
For circuit design, place a 100nF decoupling capacitor as close as possible to the VDD pin and connect the exposed pad to a ground copper pour for thermal dissipation. Do not leave the EP floating, as it serves as the primary thermal path and a secondary ground reference.
This page synthesizes distributor pricing, same-family drop-in alternatives, and CIP configuration notes not consolidated in the Microchip datasheet, providing design engineers with an actionable reference for evaluating the PIC16LF1614T-I/ML in real-world low-power embedded systems.
Drop-in alternatives for PIC16LF1614T-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 PIC16LF1614T-I/ML (same form factor and footprint) — differing in Package, Program Memory (Flash), ADC, Core Architecture, Data EEPROM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1613-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1618-I/ML
✅ Drop-In✓ In Stock
$1.02 / Unit
View Datasheet →PIC16F1614T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1704-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18426-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1554-I/ML
✅ Drop-In✓ In Stock
$0.84 / Unit
View Datasheet →PIC16LF1614T-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 8-bit RISC (enhanced mid-range) |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14 instructions) |
| Data RAM | 256 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Operating Temperature Range | -40 C to +85 C (-I grade) |
| Number of Timers | 9 |
| Comparators | 2 |
| ADC | 10-bit |
| Communication | EUSART, I2C, SPI |
| Core Independent Peripherals (CIP) | CLC, NCO, CWG |
| Package | 16-QFN (4x4 mm) with Exposed Pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Family | PIC XLP 16F |
| Watchdog Timer | Yes |
| Power-on Reset (POR) | Yes |
PIC16LF1614T-I/ML Pin Configuration
| Pin 1 | RA0/ICSPDAT — Digital I/O port A0 / ICSP data |
| Pin 2 | RA1/ICSPCLK — Digital I/O port A1 / ICSP clock |
| Pin 3 | RA2 — Digital I/O port A2 |
| Pin 4 | RA3/MCLR/VPP — Digital I/O / Master Clear / Programming voltage |
| Pin 5 | RA4 — Digital I/O port A4 |
| Pin 6 | RA5 — Digital I/O port A5 |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply voltage (1.8V-3.6V) |
| Pin 9 | RB4 — Digital I/O port B4 |
| Pin 10 | RB5 — Digital I/O port B5 |
| Pin 11 | RB6/ICSPDAT — Digital I/O port B6 / ICSP data alt |
| Pin 12 | RB7/ICSPCLK — Digital I/O port B7 / ICSP clock alt |
| Pin 13 | RB0 — Digital I/O port B0 (interrupt-on-change) |
| Pin 14 | RB1 — Digital I/O port B1 |
| Pin 15 | RB2 — Digital I/O port B2 |
| Pin 16 | RB3 — Digital I/O port B3 |
Typical Applications
PIC16LF1614T-I/ML is suitable for 6 applications: IoT Battery-Powered Sensor Node, BLDC Motor Control with CIP Commutation, LED Lighting Dimmer Controller, Low-Power Wireless Remote Control, Industrial Sensor Interface, Battery-Powered Home Automation Switch.
IoT Battery-Powered Sensor Node
The PIC16LF1614T-I/ML fits IoT sensor nodes due to its 1.8V-3.6V wide supply, XLP nanoamp sleep currents, and 256-byte RAM. Its 32MHz core wakes quickly from sleep to transmit sensor bursts over EUSART, then returns to deep sleep, achieving multi-year CR2032 battery life. The 9 timers handle periodic sampling, while the integrated 10-bit ADC captures analog sensor channels without external components.
Recommended
BLDC Motor Control with CIP Commutation
The PIC16LF1614T-I/ML's integrated Complementary Waveform Generator (CWG) and Numerically Controlled Oscillator (NCO) peripherals execute BLDC motor commutation without core intervention, freeing the CPU for application logic. The 32MHz instruction rate drives 4-PWM complementary outputs for three-phase H-bridge control at speeds to 50kHz. The 2 comparators provide hardware overcurrent protection for the inverter stage.
Recommended
LED Lighting Dimmer Controller
The PIC16LF1614T-I/ML supports LED dimming applications through its integrated CWG (Complementary Waveform Generator) for high-resolution PWM dimming up to 16-bit and CLC (Configurable Logic Cells) for hardware-based blanking timing. The 1.8V-3.6V supply enables direct operation from a 2xAA cell stack. The NCO peripheral generates precise frequency synthesis for color-mixing and dithering effects.
Recommended
Low-Power Wireless Remote Control
The PIC16LF1614T-I/ML's XLP technology delivers nanoampere sleep current, extending coin-cell battery life in IR/RF remote controls. The 32MHz core and 7 KB Flash support state-machine decoding and multi-protocol firmware (NEC, RC5, Bluetooth Low Energy prep). 9 timers and the CLC peripheral handle signal-edge detection without waking the CPU, reducing average power consumption 10x versus polled designs.
Recommended
Industrial Sensor Interface
The PIC16LF1614T-I/ML operates over the full industrial -40C to +85C range and 1.8V-3.6V supply, suitable for factory 4-20mA sensor loop, RTD, and bridge-sensor interfaces. Its 10-bit ADC with 9 timers triggers precise interval sampling; 2 comparators detect threshold alarms without core polling. Industrial systems benefit from reliable noise immunity and integrated CIP offload.
Recommended
Battery-Powered Home Automation Switch
The PIC16LF1614T-I/ML runs at 1.8V on a single 2032 coin cell for years, supporting Zigbee or LoRa push-button wall switches. Its CLC peripheral implements debounce and toggle logic, while the CWG and timers generate PWM for haptic feedback and LED indication. The 7 KB Flash fits full RF stack and OTA update logic for modern home automation protocols.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1614T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1613-I/ML | PIC16LF1618-I/ML | PIC16F1614T-I/ML | PIC16F1704-I/ML | PIC16F18426-I/ML |
|---|---|---|---|---|---|---|
| Package | 16-QFN (4x4) with EP | 16-QFN (4x4) with EP - same | 16-QFN (4x4) with EP - same | 16-QFN (4x4) with EP - same | 16-QFN (4x4) with EP - same | 16-QFN (4x4) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC16 8-bit RISC, 32 MHz | PIC16 8-bit RISC, 32 MHz | PIC16 8-bit RISC, 32 MHz | PIC16 8-bit RISC, 32 MHz | PIC16 8-bit RISC, 32 MHz | PIC16 enhanced, 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14) | 4 KB | 7 KB | 7 KB | 4 KB | 28 KB |
| Data RAM | 256 B | 256 B | 1 KB | 256 B | 256 B | 2 KB |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| CIP Peripherals (CLC/NCO/CWG) | Yes (all three) | Partial (no CWG) | Yes (all three) | Yes (all three) | No | Yes (different set) |
| XLP Low-Power Sleep | Yes (nanoWatt) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Full set of CIP peripherals (CLC, NCO, CWG) in 16-QFN (vs PIC16F1704-I/ML)
- Wide 1.8V-3.6V supply for battery-powered designs (vs PIC16F1614T-I/ML)
- Compact 16-QFN (4x4 mm) with full CIP integration (vs PIC16LF1618-I/ML)
Design Notes
Place a 100 nF decoupling capacitor (X7R) as close as possible to the VDD pin (pin 8), with traces direct to the exposed thermal pad ground plane. The QFN EP serves as the primary thermal path AND a secondary ground reference; if left floating, the device may exhibit reset issues under heavy I/O switching. Recommended ground-pour area is at least 100 mm squared of 1 oz copper to keep junction-to-ambient thermal resistance below 60 C/W.
Estimated: At VDD = 3.0 V and active CPU frequency 32 MHz (HS oscillator), the PIC16LF1614T-I/ML draws approximately 3 mA with all peripherals off and up to 8 mA with full CIP activation. In sleep mode, current drops to the nanoampere range via XLP nanoWatt technology. For sustained battery operation at 32 MHz active duty, ensure the source impedance of the regulator (e.g., MCP1700 LDO) stays below 1 ohm to prevent VDD sag during peripheral turn-on transients.
Do NOT confuse the LF (1.8V-3.6V) and F (2.3V-5.5V) variants in 5V-rail designs - PIC16LF1614T-I/ML will latch up if VDD exceeds 3.6V. For ICSP programming via PICKit, ensure the MCLR/VPP pin is pulled high via a 10 kohm resistor and that VPP rises to at least 8V briefly during programming. Order parts marked /ML (QFN), not /SL (SOIC) - the latter will not fit the 16-QFN land pattern.
For the EUSART, SPI, and I2C peripherals, keep trace lengths to under 50 mm and use a 4-layer PCB with continuous reference ground plane to avoid signal-integrity issues at 32 MHz CPU. The CWG and NCO peripherals do not generate external signals requiring controlled impedance beyond the standard GPIO drive strength of the 16-QFN; however, when driving external MOSFETs or RFICs, place series resistors within 5 mm of the MCU pin.
Compliance Information
RoHS compliant per Microchip product page. Industrial -I temperature grade (-40C to +85C); AEC-Q100 automotive grade not stated for this MPN. Lead-free and halogen-free per Microchip environmental certification.
