PIC16LF1613-I/ST - 8-Bit 32MHz 3.5KB Flash MCU | Microchip
MPN: PIC16LF1613-I/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.32 | $1.32 |
| 10 | $1.19 | $11.90 |
| 100 | $0.95 | $95.00 |
| 500 | $0.84 | $420.00 |
| 1,000 | $0.72 | $720.00 |
PIC16LF1613-I/ST Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripheral interfaces into one IC. MCUs sit at the heart of virtually every embedded system, executing deterministic firmware that controls sensors, actuators, and communication links. The 8-bit class remains attractive when system cost, code density, and ultra-low sleep current dominate the design trade-off, particularly in sensor nodes, white goods, personal care devices, and remote controls. The PIC16F161X family specifically targets low-cost motor and lighting control with on-chip signal-conversion and timing peripherals that normally require external components.
Key features include 32MHz internal oscillator, 14-pin TSSOP footprint, 256 bytes SRAM, 128 bytes EEPROM, a 10-bit ADC with hardware Capacitive Voltage Divider (CVD) for touch and capacitive sensing, and dedicated peripherals for zero-cross detection, waveform generation, and configurable logic. Internal clock accuracy eliminates external crystals in many designs, reducing BOM cost and PCB area.
Typical applications include small DC motor and BLDC control, LED lighting drivers, sensor signal conditioning, household appliances, and ultra-low-power IoT nodes. The XLP nanoWatt architecture makes it suitable for battery-powered products targeting years of service life on a single coin cell.
When designing with this device, plan pin allocation carefully - only 14 pins are available, and shared peripheral functions can quickly exhaust the available I/O. Use Microchip's MPLAB X IDE with XC8 compiler for development; pick PIC16LF1613-I/ST for industrial-temperature TSSOP builds, PIC16LF1613-I/SL for SOIC-14, or PIC16F1613 for 5V-tolerant extended voltage range. Verify the ZCD, CWG and NCO pin assignments against your PCB layout before committing to layout.
This page synthesizes distributor pricing, drop-in alternatives from the same PIC16(L)F161X family and PIC16F1xxx cross-references, plus practical design notes that go beyond a manufacturer datasheet.
Drop-in alternatives for PIC16LF1613-I/ST — 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 PIC16LF1613-I/ST (same form factor and footprint) — differing in Package, ADC, Core, Program Memory (Flash), I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1613-I/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1613-I/ST
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC16LF1614-I/ST
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1554-I/ST
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16LF15323-I/P
✅ Drop-In✓ In Stock
$0.78 / Unit
View Datasheet →PIC16LF1454-I/ML
✅ Drop-In✓ In Stock
$1.42 / Unit
View Datasheet →PIC16LF1613-I/ST Maximum Ratings & Electrical Characteristics
| Core | PIC 8-bit RISC |
| Series | PIC® XLP™ 16F |
| Program Memory Size | 3.5 KB (2K x 14) Flash |
| RAM Size | 256 bytes |
| EEPROM Size | 128 bytes |
| CPU Speed | 32 MHz |
| Operating Voltage | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 14-pin TSSOP |
| Mounting Type | Surface Mount |
| ADC | 10-bit ADC with computation |
| Timer Modules | Multiple 8/16-bit timers |
| Special Peripherals | CLC, CWG, NCO, ZCD, CCP, SMT |
| Programming Interface | ICSP (2-wire) |
| RoHS Status | Compliant |
| MSL Level | 1 (unlimited floor life) |
PIC16LF1613-I/ST Pin Configuration
| Pin 1 | RA3/AN3/VPP/MCLR — Digital I/O / analog input / programming high voltage / Master Clear (reset) |
| Pin 2 | RA4/AN4/T0CKI — Digital I/O / analog input / Timer0 clock input |
| Pin 3 | RA5/AN5 — Digital I/O / analog input |
| Pin 4 | VDD — Positive supply voltage (1.8V-3.6V) |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB4/AN10 — Digital I/O / analog input |
| Pin 7 | RB5/AN11 — Digital I/O / analog input |
| Pin 8 | RB6/ICSPCLK/AN12 — Digital I/O / ICSP clock / analog input |
| Pin 9 | RB7/ICSPDAT/AN13 — Digital I/O / ICSP data / analog input |
| Pin 10 | RC0 — Digital I/O |
| Pin 11 | RC1/AN14 — Digital I/O / analog input |
| Pin 12 | RC2/AN16 — Digital I/O / analog input |
| Pin 13 | RC3/AN17 — Digital I/O / analog input |
| Pin 14 | RC4 — Digital I/O |
Typical Applications
PIC16LF1613-I/ST is suitable for 6 applications: Small DC Motor and BLDC Control, LED Lighting Drivers, Ultra-Low-Power IoT Sensor Nodes, Household Appliance Control, Capacitive Touch Sensing, Personal Care and Battery Devices.
Small DC Motor and BLDC Control
The PIC16LF1613-I/ST fits small DC motor and BLDC control applications because it integrates a Complementary Waveform Generator (CWG), a Numerical Comparator (NCO), Zero-Cross Detect (ZCD), and CCP peripherals that replace several external components in a typical brushed or brushless motor driver. At 32MHz CPU speed, the MCU can sustain PWM frequencies up to 32kHz while servicing ADC computations for back-EMF sensing. The 1.8V-3.6V operating range supports 1-cell Li-ion or 2xAA battery packs. Designers typically route the CWG outputs through a gate driver IC to MOSFET half-bridges, using the ZCD to detect rotor position. XLP sleep currents below 1uA extend standby across multi-mode appliances.
Recommended
LED Lighting Drivers
The PIC16LF1613-I/ST serves as the controller in dimmable LED lighting drivers where smooth PWM dimming and zero-cross detection of the AC mains are required. Its CWG peripheral generates PWM dimming signals up to 32kHz with 10-bit resolution, while the on-chip 10-bit ADC reads ambient light sensor inputs for closed-loop dimming. The 1.8V-3.6V range supports direct connection to a small auxiliary supply derived from the LED driver. XLP nanoWatt sleep currents below 1uA in idle states make the device attractive for always-on smart lighting. The CLC peripheral allows combining comparator and PWM signals to implement active PFC or valley-fill topologies without external logic.
Recommended
Ultra-Low-Power IoT Sensor Nodes
The PIC16LF1613-I/ST is a strong fit for battery-powered IoT sensor nodes where multi-year coin-cell life is required. The XLP nanoWatt architecture delivers sleep currents below 1uA, while the 32MHz active CPU handles sensor sampling and radio packet assembly in short bursts before returning to sleep. Its on-chip 10-bit ADC with computation performs averaging and threshold checks in hardware, reducing firmware overhead and wake-up cycles. Designers add an external radio module such as a sub-GHz or BLE transceiver and use the CLC peripheral to wake the MCU on external events. The 14-pin TSSOP footprint suits sub-1 cubic-inch sensor enclosures.
Recommended
Household Appliance Control
The PIC16LF1613-I/ST is well suited to control boards in household appliances such as coffee makers, blenders, washing machines, and air purifiers. The 14-pin TSSOP footprint provides enough GPIO for keypad scanning, LED indicators, and relay or TRIAC control, and the CWG peripheral simplifies TRIAC firing-angle phase control. The industrial -40C to +85C temperature range handles kitchen and laundry environments. XLP nanoWatt sleep allows standby power below 0.5W to meet energy-efficiency regulations. The MCU's flash and SRAM cover typical appliance user-interface state machines without external memory.
Recommended
Capacitive Touch Sensing
The PIC16LF1613-I/ST supports capacitive touch sensing via its 10-bit ADC with hardware Capacitive Voltage Divider (CVD) peripheral. The CVD approach removes the need for an analog frontend, allowing direct sensor connection to analog-capable pins with the ADC and on-chip reference. The CLC peripheral can be configured as a wake-on-touch logic block, waking the MCU from sleep only when a finger is detected, which is critical for battery-powered touch interfaces. Designers commonly implement 4 to 8 touch buttons and a slider on this MCU. The 1.8V-3.6V range and low sleep current suit USB-powered and battery-powered touch UI applications.
Recommended
Personal Care and Battery Devices
The PIC16LF1613-I/ST fits personal care devices like electric toothbrushes, shavers, and grooming tools that demand low cost, low power, and reliable motor control. The CWG and CCP peripherals generate brushed or brushless motor PWM, while the ADC reads battery voltage, current, and temperature for charge management and end-of-life detection. XLP sleep currents below 1uA help meet standby drain requirements. The 14-pin TSSOP is small enough to fit in tight enclosures. The 1.8V operating point supports single-cell Li-ion or NiMH chemistries. SEGGER J-Link and Microchip PICkit debuggers are fully supported for in-circuit firmware development.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1613-I/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1613-I/SL | PIC16F1613-I/ST | PIC16LF1614-I/ST | PIC16LF1554-I/ST | PIC16LF1454-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin TSSOP (ST) | 14-pin SOIC (SL) | 14-pin TSSOP (ST) | 14-pin TSSOP (ST) | 14-pin TSSOP (ST) | 16-pin QFN (ML) |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V (USB-capable) |
| Flash Memory | 3.5 KB | 3.5 KB | 3.5 KB | 7 KB | 7 KB | 14 KB |
| SRAM | 256 bytes | 256 bytes | 256 bytes | 512 bytes | 512 bytes | 1 KB |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 48 MHz |
| Special Peripherals | CLC, CWG, NCO, ZCD, ADC-CMP | Same set | Same set | Same + extra peripherals | CLC, NCO, ZCD, ADC-CMP | CLC, ADC, USB 2.0 FS |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Approx. Unit Price @1K (USD) | $0.72 | $0.72 (approx) | $0.78 (approx) | $0.85 (approx) | $0.85 (approx) | $1.10 (approx) |
Key Differentiators
- XLP nanoWatt low-power technology (vs PIC16LF1554-I/ST)
- Integrated CLC, CWG, NCO, ZCD, and CCP (vs PIC16LF1454-I/ML)
- 1.8V-3.6V low-voltage operation (vs PIC16F1613-I/ST)
Design Notes
The PIC16LF1613-I/ST supports 1.8V-3.6V operation. Use a 100nF decoupling capacitor on VDD placed within 5mm of the device pin. For ADC accuracy, add a 10uF bulk capacitor plus ferrite bead if the analog supply shares the digital rail. The XLP nanoWatt sleep current below 1uA is achievable only with the on-chip LFINTOSC and all peripherals disabled; verify sleep current with the MPLAB X Power Database after firmware integration.
The 14-pin TSSOP has 0.65mm pitch - route all signals on outer layers and keep a continuous ground plane under the device. Place ICSP programming test points (RB6/ICSPCLK, RB7/ICSPDAT, MCLR, VDD, VSS) so PICkit 4/5 or ICD 4/5 can connect without rework. Reserve space for a 32.768kHz crystal footprint even if the internal oscillator is selected initially, as crystal operation may be needed for timing-critical applications like zero-cross detection.
Do not assume all 14 pins are usable as GPIO - the ICSP and MCLR pins share functionality and must be left accessible. The CLC, CWG, NCO, and ZCD peripherals are mapped to specific pins; pinout assignment must be cross-checked against the datasheet pin allocation tables. The 'LF' suffix is required for designs operating below 2.3V - using the non-LF PIC16F1613 at 1.8V will result in flash read errors. Avoid powering the MCU from a high-impedance source during flash programming as it can cause VDD droop.
When driving PWM outputs through long PCB traces to MOSFET gates, add 100 ohm source-series resistors near the MCU pin to dampen ringing. For ZCD inputs, use a low-pass RC filter (10k-100pF) to attenuate high-frequency noise from the AC mains. The CLC peripheral can be used to debounce mechanical switches in hardware, reducing firmware load and improving response time in user-interface applications.
Compliance Information
RoHS compliant per Microchip product page. AEC-Q100 not qualified - this is an industrial-temperature MCU, not an automotive-grade part.
