PIC16LF15344-I/SS - 8-Bit 32MHz XLP MCU 7KB Flash 20-SSOP | Microchip
MPN: PIC16LF15344-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.71 | $1.71 |
| 10 | $1.53 | $15.30 |
| 100 | $1.34 | $134.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.06 | $1,060.00 |
PIC16LF15344-I/SS Overview
An 8-bit microcontroller (MCU) is a self-contained computer-on-chip built around an 8-bit data path, integrating CPU, non-volatile program memory, RAM, timers, and various peripherals on a single die. Within the broader taxonomy, microcontrollers fall under embedded processors -> microcontrollers -> 8-bit microcontrollers -> low-power MCUs -> XLP family. The PIC16F153xx series extends Microchip's mid-range PIC16 architecture with peripheral-rich Core Independent Peripherals (CIPs), allowing hardware-driven tasks without CPU intervention and enabling deterministic, ultra-low-power operation.
Key features include 32MHz internal oscillator, 7KB Flash with self-programmability, 4 hardware PWM channels for LED/motor control, a 10-bit ADC with computation, 4 CLC blocks for combinational/sequential logic, and a 5-bit DAC. The XLP technology achieves <50 nA sleep current with full RAM retention, supporting years of battery life on a single coin cell.
Architecturally, the PIC16LF15344 uses a modified Harvard RISC core with a 14-bit instruction word optimized for code density, paired with a wide peripheral set including DMA-less analog-to-digital conversion, hardware slope compensation, and zero-cross detection. This combination delivers deterministic interrupt response for real-time control loops while keeping dynamic power below 30 uA/MHz.
Typical applications include battery-powered IoT sensor nodes, remote controls, low-power wireless sensor networks (LoRa/Zigbee/BLE front-ends), LED lighting controllers, small appliance HMI boards, and consumer electronics requiring long battery life in compact 20-pin SSOP form factor.
Design consideration: SSOP (Shrink Small Outline Package) is preferred over QFN when hand-rework or breadboard-prototyping is needed, but pay attention to clearance between adjacent pins during PCB layout.
This page synthesizes distributor pricing, same-brand drop-in alternatives such as the PIC16F15344-I/SS extended-voltage variant and the PIC16LF15344-I/SO 20-SOIC package, and practical design notes not aggregated in the manufacturer datasheet.
Drop-in alternatives for PIC16LF15344-I/SS — 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 PIC16LF15344-I/SS (same form factor and footprint) — differing in Package, ADC, Comparators, Core Architecture, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F15344-I/SS
✅ Drop-In✓ In Stock
$0.79 / Unit
View Datasheet →PIC16LF15344T-I/SS
✅ Drop-In✓ In Stock
$0.86 / Unit
View Datasheet →PIC16LF15324-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1507-I/SS
✅ Drop-In✓ In Stock
$0.75 / Unit
View Datasheet →PIC16LF1513-I/SS
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC16LF15344-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 (8-bit RISC, 14-bit instruction word) |
| Family | PIC® XLP™ 16F |
| Sub-Family | PIC16F153xx / PIC16LF153xx |
| Operating Voltage Range (LF) | 1.8 V to 3.6 V |
| Maximum Clock Frequency | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data RAM | 512 B |
| Package | 20-SSOP (5.30 mm body width) |
| Operating Temperature | -40C to +85C (Industrial, '-I' suffix) |
| I/O Pins | 17 |
| ADC | 10-bit |
| DAC | 5-bit |
| PWM Channels | 4 |
| Comparators | 1 |
| CLC (Configurable Logic Cell) | 4 |
| EUSART | 2 |
| SPI / I2C | Yes (1 each via PPS) |
| Complementary Waveform Generator (CWG) | Yes |
| Mounting Type | Surface Mount |
| MSL Level | MSL1 (unlimited floor life) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16LF15344-I/SS Pin Configuration
| Pin 1 | RA0/ANA0 — Bidirectional I/O; analog input channel 0 |
| Pin 2 | RA1/ANA1 — Bidirectional I/O; analog input channel 1 |
| Pin 3 | RA2/ANA2 — Bidirectional I/O; analog input channel 2 |
| Pin 4 | RA3/ANA3 — Bidirectional I/O; analog input channel 3 / VREF+ |
| Pin 5 | RA4/ANA4 — Bidirectional I/O; analog input channel 4 |
| Pin 6 | RA5/ANA5 — Bidirectional I/O; analog input channel 5 |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RA7 — Bidirectional I/O |
| Pin 9 | RA6 — Bidirectional I/O; ICSPCLK |
| Pin 10 | RC0 — Bidirectional I/O |
| Pin 11 | RC1 — Bidirectional I/O |
| Pin 12 | RC2 — Bidirectional I/O |
| Pin 13 | RC3 — Bidirectional I/O |
| Pin 14 | RC4 — Bidirectional I/O; ICSPDAT |
| Pin 15 | RC5 — Bidirectional I/O |
| Pin 16 | RC6 — Bidirectional I/O |
| Pin 17 | RC7 — Bidirectional I/O |
| Pin 18 | VSS — Ground (second pad for thermal/signal) |
| Pin 19 | VDD — Positive supply voltage 1.8V-3.6V |
| Pin 20 | MCLR/VPP/RA3 — Reset input (active-low) / programming voltage |
Typical Applications
PIC16LF15344-I/SS is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Remote Controls and Wireless HMI, LED Lighting Controllers, Small Appliance HMI Boards, Industrial Sensor Transmitters, Consumer Wearable Devices.
Battery-Powered IoT Sensor Nodes
The PIC16LF15344-I/SS is an excellent choice for wireless IoT sensor nodes operating from a coin cell or 2x AA cells, because its XLP technology achieves sub-uA sleep current with full RAM retention and 32MHz run-time MIPS for occasional sensor reads. The 10-bit ADC with computation provides oversampling and threshold interrupts directly in hardware, while the 2 EUSARTs can drive sub-1GHz transceivers like the MRF89XA for LoRa-style remotes. Placing the MCU adjacent to the sensor reduces I/O pin trace length and yields lower BOM cost; unlike 32-bit Cortex-M0+ alternatives, the PIC16LF15344 integrates 4 CLC blocks for hardware-only signal conditioning that can wake the core only when threshold is met, extending battery life to multi-year scale.
Recommended
Remote Controls and Wireless HMI
In infrared/BLE remote controllers, the PIC16LF15344-I/SS fits by combining its 4 PWM channels (for IR or RGB LED backlight), 5-bit DAC (for audio click feedback), and 4 CLC blocks (for hardware-only button matrix scanning). Its 1.8V-3.6V VDD range accommodates single CR2032 coin-cell operation directly without boost, and the wide 20-SSOP footprint simplifies hand-prototyping. Compared with smaller 8-pin MCUs, it offers more I/O for matrix keypads and screen-driving while staying within single-digit mA active current at 32MHz.
Recommended
LED Lighting Controllers
For LED drivers and color-mixing luminaires, the PIC16LF15344-I/SS integrates 4 hardware PWM channels plus the Complementary Waveform Generator (CWG) with programmable dead-band, enabling direct control of high-side/low-side MOSFETs in buck/boost topologies. The CLCs can implement active PFC and zero-cross detection without CPU intervention, allowing the MCU to stay in sleep for most of the AC line cycle. This delivers deterministic flicker-free output while keeping thermal budget low; unlike purely analog LED drivers, this MCU allows field-upgradeable DMX/DALI/Casambi firmware.
Recommended
Small Appliance HMI Boards
The PIC16LF15344-I/SS suits small appliance human-machine interface boards (coffee machines, blenders, kitchen timers) needing touch/proximity sensing plus motor control. The integrated Comparator and ADC with hardware accumulation enable capacitive touch via the mTouch inductive-touch firmware library, while the 4 PWM and CWG channels drive a brushed or BLDC motor via a companion driver. Operating from a 3.3V LDO bus reduces thermal dissipation in enclosed housings; unlike parts without CWG, this MCU can produce zero-cross switching patterns without timer ISR overhead.
Recommended
Industrial Sensor Transmitters
In 4-20 mA loop-powered or IO-Link sensor transmitters, the PIC16LF15344-I/SS delivers 32MHz of compute for linearization algorithms while maintaining XLP sleep current < 1uA for compliance with industrial loop-power budgets. The 10-bit ADC provides redundant readings with hardware averaging, and the 2 EUSARTs support both RS-485 and IO-Link simultaneously. Industrial design benefits from the 20-SSOP package's vibration tolerance vs leadless packages; unlike bare 8-pin MCUs, this part includes CIPs that offload protocol framing from the CPU.
Recommended
Consumer Wearable Devices
For fitness bands, BLE beacons, and health-tracking wearables, the PIC16LF15344-I/SS pairs XLP sleep below 50 nA with on-the-fly DMA-less DMA-equivalent CIPs for low-overhead sensor polling. The 5-bit DAC can drive a piezo buzzer for haptic feedback without an external CODEC, and the wide VDD range supports Li-ion to coin-cell chemistries. This yields compact, low-BOM designs; unlike Cortex-M0+ parts requiring a debugger expense, the PIC16LF15344 can be programmed in-circuit via the ICSP interface through PICkit 4 tools under 50 USD.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF15344-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F15344-I/SS | PIC16LF15344T-I/SS | PIC16LF15324-I/SS | PIC16LF1507-I/SS | PIC16LF1513-I/SS |
|---|---|---|---|---|---|---|
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage | 1.8V - 3.6V | 2.3V - 5.5V | 1.8V - 3.6V | 1.8V - 3.6V | 1.8V - 3.6V | 1.8V - 3.6V |
| Flash Memory | 7 KB | 7 KB | 7 KB | 3.5 KB | 1.75 KB | 8 KB |
| RAM | 512 B | 512 B | 512 B | 256 B | 64 B | 256 B |
| Maximum Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 20 MHz | 20 MHz |
| CLC Blocks | 4 | 4 | 4 | 4 | 0 | 0 |
| DAC | 5-bit | 5-bit | 5-bit | 5-bit | None | None |
| EUSART | 2 | 2 | 2 | 2 | 1 | 1 |
Key Differentiators
- Highest peripheral density per mW in 20-SSOP PIC16 family (vs PIC16LF1507-I/SS)
- Lower-voltage operating range vs F-variant (vs PIC16F15344-I/SS)
- Larger Flash/RAM than PIC16LF15324 (vs PIC16LF15324-I/SS)
Design Notes
Place a 100nF ceramic decoupling capacitor within 2 mm of the VDD pin (pin 19) and a bulk 1-10uF tantalum or ceramic on the same node. Avoid routing high-speed digital signals (CWG, PWM) directly across the VDD trace. The PIC16LF15344 incorporates a Power-on Reset (POR) and Brown-out Reset (BOR) that the configuration bits can set for 1.8V minimum operation; leaving BOR disabled in 1.8V systems can cause unreliable cold-start at low battery voltage.
The 20-SSOP has 0.65mm lead pitch; route all signals on the top layer with 0.20mm trace width to maintain clearance between pins. The exposed pad is not present on SSOP, so thermal dissipation is limited; if the design dissipates >50mA sustained, use the SOIC variant instead. Add a 4-wire ICSP header footprint (MCLR, VDD, VSS, ICSPDAT, ICSPCLK) for in-circuit programming even if production units are pre-programmed.
Do not apply 5V signals to any I/O when VDD is 3.3V; the PIC16LF15344's absolute maximum on any I/O is VDD + 0.3V. When migrating from PIC16F15344, verify that peripherals set to Fosc/4 still derive valid baud rates at Fosc=32MHz before committing the design. Do not omit the MCLR pull-up resistor; without it, noise can spuriously reset the MCU. Estimated: a typical XLP sleep current with RTC running at 32kHz is below 1uA, but enabling multiple peripherals can push it above 5uA - measure on your specific build.
When using the CLC blocks to debounce or synchronize external signals, keep the input trace lengths matched and avoid routing them adjacent to PWM outputs to minimize coupling. The 2 EUSART clock-driven outputs can introduce peak currents of 5-10mA; bulk decoupling near each EUSART connector helps stabilize the rail. If the design uses SPI at >4MHz, ensure <50mm trace length and add a 33-ohm series resistor to dampen ringing.
Compliance Information
PIC16LF15344-I/SS is RoHS/REACH compliant per Microchip product ordering information. Not AEC-Q100 qualified - choose '-E' or '-VAO' suffix variants for automotive-grade applications. Conflict-mineral declaration available from Microchip.
