PIC16LF1615T-I/ST - 8-Bit 32MHz XLP MCU 14KB Flash | Microchip
MPN: PIC16LF1615T-I/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.49 | $1.49 |
| 10 | $1.34 | $13.40 |
| 100 | $1.19 | $119.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.93 | $930.00 |
PIC16LF1615T-I/ST Overview
Background: An 8-bit microcontroller (MCU) is a single-chip computer integrating a CPU, RAM, Flash program memory, peripherals (ADC, timers, PWM, communication blocks) and I/O on one silicon die. The PIC16F/LF family uses a Harvard RISC architecture with a 14-bit instruction word. The 'LF' sub-family is the low-voltage variant of the F-series, optimized for sub-3.6V operation. Within the broader taxonomy, the PIC16LF1615 belongs to the microcontrollers > 8-bit MCUs > PIC16 family > PIC16F161x sub-family hierarchy.
Key features include the XLP deep-sleep current of typically 20 nA, integrated Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Numerically Controlled Oscillator (NCO) and Complementary Waveform Generator (CWG) that offload tasks from the CPU, a 10-bit ADC with computation, multiple 16-bit timers and enhanced USART, I2C and SPI interfaces. The device supports up to 12 I/O pins with interrupt-on-change capability and a wide operating temperature range of -40C to +85C (industrial 'I' grade).
Architecturally, the PIC16LF1615 implements Microchip's enhanced mid-range core with a hardware stack, interrupt controller, and 49 CIP peripherals selectable via Peripheral Pin Select (PPS), allowing flexible PCB layout. The 32 MHz internal oscillator provides ±2% accuracy across temperature and voltage, eliminating the need for an external crystal in many designs. The Flash endurance is rated at 100,000 write/erase cycles minimum with data EEPROM retention of 40+ years, suitable for field-deployed IoT nodes.
Typical applications include low-power IoT sensor nodes, wearable health monitors, battery-powered HVAC thermostats, intelligent LED lighting controls, and small appliance user-interface boards. The XLP architecture makes it particularly suited to remote controls, energy-harvesting switches, and wireless sensor end-points where 5-10 year battery life is required.
When designing with this part, plan GPIO assignments around the Peripheral Pin Select remap to avoid pin conflicts, place a 0.1uF decoupling capacitor within 5 mm of the VDD pin, and use the CWG and NCO peripherals for hardware-based waveform synthesis without invoking the CPU, which preserves the deep-sleep current budget. Verified datasheet, distributor stock and pricing are aggregated on this page.
Drop-in alternatives for PIC16LF1615T-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 PIC16LF1615T-I/ST (same form factor and footprint) — differing in Package, ADC, Timers, Program Memory (Flash), DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1615T-I/SL
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16LF1615-I/ST
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1615T-I/ST
✅ Drop-In✓ In Stock
$0.71 / Unit
View Datasheet →PIC16LF1554T-I/ST
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16LF1574T-I/SL
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.86 / Unit
View Datasheet →PIC16LF1615T-I/ST Maximum Ratings & Electrical Characteristics
| Core | PIC16 8-bit RISC enhanced mid-range |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Maximum CPU Frequency | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 14-pin TSSOP |
| I/O Pins | 12 |
| ADC | 10-bit, computation engine |
| Timers | Multiple 8/16-bit |
| Communication | I2C, SPI, Enhanced USART |
| Core Independent Peripherals (CIP) | CLC, NCO, CWG, DSM |
| Deep Sleep Current | XLP family, typical 20 nA |
| Instruction Set | 14-bit PIC mid-range |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF1615T-I/ST Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 2 | RA5 — Port A bit 5 / general purpose I/O with IOC |
| Pin 3 | RA4 — Port A bit 4 / general purpose I/O with IOC |
| Pin 4 | RA3/MCLR — Port A bit 3 / Master Clear (reset, active low) |
| Pin 5 | RC5 — Port C bit 5 / general purpose I/O |
| Pin 6 | RC4 — Port C bit 4 / general purpose I/O |
| Pin 7 | RC3 — Port C bit 3 / general purpose I/O |
| Pin 8 | RC2 — Port C bit 2 / general purpose I/O |
| Pin 9 | RC1 — Port C bit 1 / general purpose I/O |
| Pin 10 | RC0 — Port C bit 0 / general purpose I/O |
| Pin 11 | RA2 — Port A bit 2 / general purpose I/O / analog |
| Pin 12 | RA1 — Port A bit 1 / general purpose I/O / analog |
| Pin 13 | ICSPCLK/RA0 — In-circuit serial programming clock / Port A bit 0 |
| Pin 14 | VSS/ICSPDAT — Ground reference / In-circuit serial programming data |
Typical Applications
PIC16LF1615T-I/ST is suitable for 6 applications: Battery-Powered IoT Sensor Node, Wearable Health Monitor, HVAC Smart Thermostat Control Board, Intelligent LED Lighting Controller, Small Appliance User-Interface Board, Remote Control / Wireless End-Node.
Battery-Powered IoT Sensor Node
The PIC16LF1615T-I/ST fits low-duty-cycle IoT sensor nodes where 5-10 year battery life on 2x AA cells is required. The XLP deep-sleep current of approximately 20 nA and the CLC/NCO/CWG core-independent peripherals let the device wake on a timer, sample the ADC, run sensor compensation in hardware, and transmit via USART-triggered DMA without waking the CPU - extending field life dramatically. With 14 KB Flash accommodating a LoRaWAN MAC stack plus custom application code, and 1 KB RAM for sensor buffers, this MCU balances capability and energy budget. Operating at 1.8V to 3.6V, it interfaces directly to 3.3V sensors without level shifters, reducing BOM cost.
Recommended
Wearable Health Monitor
The PIC16LF1615T-I/ST supports wearable health monitors such as heart-rate straps and step counters where PCB area and battery life are tightly constrained. Its 14-pin TSSOP footprint (5.0 mm x 4.4 mm) fits inside coin-cell battery compartments, while the 12 GPIO lines support I2C biometric sensors, SPI accelerometers, and PWM-driven vibration motors. The 32 MHz CPU executes pulse-oximetry and accelerometer-fusion algorithms in real time, then enters deep-sleep with CLC-based wake on motion. Sub-3.6V operation enables direct CR2032 use without boost regulators, cutting quiescent draw. The XLP sleep current preserves battery life for months of continuous wear.
Recommended
HVAC Smart Thermostat Control Board
The PIC16LF1615T-I/ST is a cost-effective controller for HVAC smart thermostats, where it reads thermistor temperature, drives an LCD, and supervises a relay or TRIAC for HVAC load switching. The 10-bit ADC with computation engine delivers oversampling and averaging without CPU intervention, providing stable temperature readings across the 0C to 50C thermostat range. The CWG peripheral generates zero-cross switching waveforms for the TRIAC dimmer, and the NCO produces precise timing for relay de-bounce. With 14 KB Flash, full Modbus or BACnet stacks fit comfortably, and 1 KB RAM is sufficient for thermostat state-machine buffers.
Recommended
Intelligent LED Lighting Controller
The PIC16LF1615T-I/ST suits intelligent LED lighting controllers with DMX-512, DLI or SIEM-pre dimming interfaces, providing smooth 16-bit PWM dimming via its 16-bit timers and CWG peripherals. The PIC16LF1615's 32 MHz CPU runs color-mixing algorithms, while the CLC block handles hardware fault detection for LED open/short conditions without CPU load. The 1.8V to 3.6V supply operates from a small buck regulator off the LED driver, keeping standby power low. With 12 GPIO available, it drives multiple LED channels and accepts tactile-button or 0-10V analog dim inputs in a single TSSOP-14 footprint.
Recommended
Small Appliance User-Interface Board
The PIC16LF1615T-I/ST is a strong fit for small appliance UI boards such as coffee machines, blenders, or induction cooktops, where it scans capacitive touch buttons, drives a small character LCD, and times motor/relay cycles. The CWG peripheral generates complementary PWM for half-bridge motor drives, and the 10-bit ADC reads thermistor inputs for over-temperature protection. With 14 KB Flash and 1 KB RAM, the PIC16LF1615 hosts the full state machine, fault-recovery routines, and LCD font tables. Industrial-grade -40C to +85C operation survives kitchen environments.
Recommended
Remote Control / Wireless End-Node
The PIC16LF1615T-I/ST is ideal for energy-harvesting wireless remote controls and end-nodes, leveraging its XLP deep-sleep current of approximately 20 nA and 1.8V minimum supply. The CLC peripheral performs button-debouncing and edge-counting in deep-sleep, waking the CPU when a press is detected. The 32 MHz CPU runs a simple RF4CE or proprietary protocol stack, then returns to sleep. The 14 KB Flash accommodates firmware updates via the bootloader, and the 12 GPIO lines drive LED indicators and matrix-scanned keypads. The TSSOP-14 (5 mm) package fits inside CR2032-battery-powered remote housings.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1615T-I/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1615T-I/SL | PIC16LF1615-I/ST | PIC16F1615T-I/ST | PIC16LF1554T-I/ST | PIC16LF1574T-I/SL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin TSSOP | 14-pin TSSOP - same | 14-pin TSSOP - same | 14-pin TSSOP - same | 14-pin TSSOP - same | 14-pin TSSOP - same |
| Program Flash | 14 KB | 14 KB | 14 KB | 14 KB | 4 KB (-71%) | 7 KB (-50%) |
| Data RAM | 1 KB | 1 KB | 1 KB | 1 KB | 256 B (-75%) | 512 B (-50%) |
| Supply Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 2.3V to 5.5V | 1.8V to 3.6V | 1.8V to 3.6V |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Core Independent Peripherals | CLC, NCO, CWG, DSM, ADC2 | CLC, NCO, CWG, DSM, ADC2 | CLC, NCO, CWG, DSM, ADC2 | CLC, NCO, CWG, DSM, ADC2 | CLC, NCO (no CWG) | CLC, NCO, CWG (no DSM) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Richest CIP peripheral set in PIC16 TSSOP-14 family (vs PIC16LF1554T-I/ST)
- Largest Flash and RAM in PIC16 TSSOP-14 XLP family (vs PIC16LF1574T-I/SL)
- Lower-voltage operation than F-variant (vs PIC16F1615T-I/ST)
Design Notes
Place a 0.1uF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 1) and a bulk 10uF capacitor on the same supply rail. For battery applications drawing under 100 uA average, use Sleep mode with CLC peripherals running on the internal LFINTOSC (~32 kHz) to keep quiescent current under 1 uA. Activate the ADC only during active sampling windows to avoid the 200 uA typical ADC operating current.
The TSSOP-14 exposed-pad variant does not exist for this part - VSS (pin 14) is the sole ground. Provide a continuous ground plane on layer 2 and stitch vias around the TSSOP-14 perimeter. Keep the ICSP lines (RA0/ICSPCLK and ICSPDAT) accessible on the PCB edge or test pads for in-circuit programming and debug, otherwise field firmware updates become impossible.
The 'T' in PIC16LF1615T-I/ST indicates tape-and-reel packaging only - the silicon is identical to PIC16LF1615-I/ST (tube packaging). Do not pay a premium for the T suffix if your production line accepts tubes. Also note: the 'LF' prefix denotes 1.8V to 3.6V operation, NOT 5V-tolerant I/O - driving I/O above VDD+0.3V will damage the part. Use the F-variant (PIC2F1625T-I/ST, 2.3V to 5.5V) for 5V-rail designs.
Use Peripheral Pin Select (PPS) to remap peripheral functions to GPIO pins flexibly. Avoid routing the USART TX line adjacent to the ADC input channel to prevent digital switching noise coupling into the analog path. Place a 100 ohm series resistor on the MCLR line if the design is exposed to ESD events, and route the trace directly back to pin 4 (RA3/MCLR) without stubs.
Compliance Information
RoHS compliant and lead-free per Microchip product page. Not AEC-Q100 qualified - this is the standard industrial grade (-40C to +85C) variant. For automotive applications, choose a PIC16F1615 AEC-Q100 qualified variant.
