PIC16LF15344-I/SO - 8-bit MCU, 7KB Flash, 32MHz XLP | Microchip
MPN： PIC16LF15344-I/SO ✓ 啟用中PIC16LF15344-I/SO 概覽
An 8-bit PIC microcontroller is a Harvard-architecture RISC processor with separate program and data buses, executing one instruction per clock cycle (except branches). Within the broader semiconductor hierarchy, PIC16 MCUs sit below 16-bit PIC24/dsPIC and 32-bit PIC32 devices, but above discrete logic in capability, making them ideal for cost-sensitive, deterministic embedded control. The "LF" variants use F-flash process technology that supports operation down to 1.8V with active currents typically below 50 uA/MHz and sleep currents in the nanoamp range.
Key differentiating features of the PIC16LF15344 include the Core Independent Peripherals (CIPs) ecosystem, which lets CLC, CWG, PWM, ADC and the comparator chain together without CPU intervention, freeing the core for system tasks. The 10-bit ADC with automated accumulation, averaging, and threshold comparison reduces firmware overhead in sensor applications. Four CLC blocks enable combinatorial logic synthesis on-chip, often eliminating external gates.
Typical applications include battery-powered IoT sensor nodes, consumer appliances with touch or capacitive sensing, LED lighting controllers, low-cost motor control, and industrial sensor transmitters. The 32 MHz internal oscillator and 14-bit instruction word deliver roughly 8 MIPS throughput, sufficient for protocol stacks and simple RTOS workloads.
When designing with this part, pay attention to the LF voltage range: the maximum operating voltage is 3.6V, so this MCU is not directly interchangeable with 5V F-series PIC16F15344 parts. Verify that all peripherals on the board are 3.3V-tolerant before substituting the two parts.
This page synthesizes distributor pricing tiers, drop-in alternative analysis, and practical design considerations not always covered in the manufacturer datasheet. Cross-brand equivalents and same-family Microchip variants are listed to support sourcing resilience.
直接替換替代品，適用於 PIC16LF15344-I/SO — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16LF15344-I/SO （相同外形與佔位） — 差異在於 Comparators, Package, PWM Channels, ADC, DAC.
PIC16F15344-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF15344-E/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF15324-I/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF15325-I/P
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16LF1554-I/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF15344-I/SO 最大額定值與電氣特性
| Core | PIC16 8-bit RISC |
| Family | PIC® XLP™ 16F |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| RAM | 512 B |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage (Vdd) | 1.8 V to 3.6 V |
| I/O Pins | 18 (maximum, package-dependent) |
| ADC | 10-bit, with computation (ADC2) |
| DAC | 5-bit |
| Comparators | Yes (1 module) |
| PWM Channels | 4 |
| CLC | 4 Configurable Logic Cells |
| CWG | Complementary Waveform Generator |
| EUSART | 2 |
| SPI / I2C | 1 SPI, 1 I2C |
| 封裝 | 20-pin SOIC (SO) |
| 工作溫度 | -40C to +85C (Industrial) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
PIC16LF15344-I/SO 腳位配置
| 腳位 1 | RA5 — I/O port A bit 5 / digital-only |
| 腳位 2 | RA4 — I/O port A bit 4 |
| 腳位 3 | RA3 — I/O port A bit 3 / MCLR |
| 腳位 4 | RA2 — I/O port A bit 2 |
| 腳位 5 | RA1 — I/O port A bit 1 / ICSPCLK |
| 腳位 6 | RA0 — I/O port A bit 0 / ICSPDAT |
| 腳位 7 | VSS — Ground reference |
| 腳位 8 | RA7 — I/O port A bit 7 / OSC1 |
| 腳位 9 | RA6 — I/O port A bit 6 / OSC2 |
| 腳位 10 | RC0 — I/O port C bit 0 |
| 腳位 11 | RC1 — I/O port C bit 1 |
| 腳位 12 | RC2 — I/O port C bit 2 |
| 腳位 13 | RC3 — I/O port C bit 3 / SCL |
| 腳位 14 | RC4 — I/O port C bit 4 / SDA |
| 腳位 15 | RC5 — I/O port C bit 5 |
| 腳位 16 | RC6 — I/O port C bit 6 / TX |
| 腳位 17 | RC7 — I/O port C bit 7 / RX |
| 腳位 18 | VSS — Ground reference (duplicate) |
| 腳位 19 | VDD — Positive supply 1.8V-3.6V |
| 腳位 20 | RB7 — I/O port B bit 7 |
典型應用
PIC16LF15344-I/SO 適用於 6 應用s: Battery-Powered IoT Sensor Nodes, Consumer Appliance Control Boards, LED Lighting and Smart Drivers, Industrial Sensor Transmitters, Low-Cost Motor Control, Hobbyist and Educational Development.
Battery-Powered IoT Sensor Nodes
The PIC16LF15344-I/SO fits IoT sensor nodes because its 1.8V-3.6V LF voltage range and XLP nanoWatt sleep modes keep quiescent current under 50 nA in deep sleep, extending coin-cell battery life to multi-year deployments. Its 10-bit ADC2 with computation can autonomously average sensor readings and wake the core only when thresholds are crossed, eliminating firmware polling loops. The 32 MHz core provides enough throughput to run lightweight protocol stacks (Modbus RTU, custom sensor protocols) over the dual EUSART or SPI interfaces. A 1uA sleep current with RTC running from the internal 32 kHz LF oscillator is typical. The 20-SOIC package keeps BOM cost low for high-volume sensor products targeting sub-$5 retail.
推薦
Consumer Appliance Control Boards
The PIC16LF15344-I/SO suits appliance control (small kitchen, white goods, HVAC dampers) thanks to the CWG that synthesizes complementary PWM signals directly for half-bridge motor or heater drivers. The 4 CLC blocks replace discrete glue logic, reducing PCB area on cost-sensitive consumer boards. With 7KB Flash and 512B RAM, the MCU handles user interface debouncing, capacitive touch via the ADC, and serial communication with the main appliance controller. The wide 1.8V-3.6V supply range lets it ride through brown-out events from rectified mains. Industrial temperature grade (-40C to +85C) covers refrigerator and dryer operating environments.
推薦
LED Lighting and Smart Drivers
For smart LED drivers, the PIC16LF15344-I/SO integrates the peripherals needed for constant-current control: 4 PWM channels for color-mixing RGBW strings, the CWG for synchronized high-frequency FET switching, and the 5-bit DAC for setting current references. The XLP sleep modes suit battery-powered task lighting that needs long standby life. The internal 32 MHz oscillator eliminates external crystals, simplifying the BOM and reducing assembly cost. Communication via EUSART or I2C ties into DALI, Casambi or Zigbee companion modules. A typical 20-SOIC board area fits in a GU10 lamp base footprint.
推薦
Industrial Sensor Transmitters
Industrial 4-20 mA loop-powered transmitters benefit from the PIC16LF15344-I/SO's 1.8V minimum supply, allowing operation directly from a 3.3V LDO fed by the loop current. The ADC2 computation peripheral performs oversampling and digital filtering to extract small sensor signals below the noise floor of a basic 10-bit converter. The comparator enables fast threshold detection for alarm outputs. Two EUSART modules support HART or Modbus communication on a single twisted pair. Industrial temperature grade and Microchip's long-term product support program suit 10+ year industrial product lifecycles.
推薦
Low-Cost Motor Control
Brushless DC and stepper motor control at low power levels (under 50W) is achievable with the PIC16LF15344-I/SO using the CWG for complementary FET drive, the comparator for back-EMF sensing, and the ADC2 for current measurement. The 32 MIPS throughput is sufficient for sensored BLDC commutation at speeds up to several thousand RPM. With 7KB Flash, the MCU supports open-loop startup, closed-loop commutation, and basic fault handling in a single chip. The 20-SOIC industrial temperature range handles the thermal environment of motor housings.
推薦
Hobbyist and Educational Development
The PIC16LF15344-I/SO is a strong choice for hobbyist and university courses because it offers a modern PIC16 with full CIP peripheral coverage without the complexity of larger pin-count devices. Free MPLAB X IDE, XC8 compiler, and Microchip Code Configurator (MCC) toolchain accelerate learning. The 20-SOIC package is breadboard-friendly with SOIC-to-DIP adapters. The 7KB Flash fits typical student projects (blinking LEDs, servo control, UART demos, sensor reading) with headroom. The XLP features are a good teaching vehicle for low-power design techniques.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LF15344-I/SO — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16F15344-I/SO | PIC16LF15344-E/SO | PIC16LF15324-I/SO | PIC16LF1554-I/SO |
|---|---|---|---|---|---|
| Package | 20-SOIC | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage | 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 |
| Flash Program Memory | 7 KB | 7 KB | 7 KB | 3.5 KB | 3.5 KB |
| RAM | 512 B | 512 B | 512 B | 256 B | 256 B |
| CLC Blocks | 4 | 4 | 4 | 4 | 0 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C |
| Approx. Qty-1 Price (USD, as of 2026-09-23) | 1.42 | 1.35 | 1.55 | 1.10 | 0.95 |
主要差異化特點
- Wide 1.8V-3.6V LF voltage range (對比PIC16F15344-I/SO)
- Full CIP peripheral suite including CLC and CWG (對比PIC16LF1554-I/SO)
- ADC2 computation peripheral reduces firmware overhead (對比PIC16LF15324-I/SO)
設計說明
The LF variant operates from 1.8V to 3.6V; verify all peripherals, sensors, and interface ICs on the board tolerate this range before substituting with a 5V PIC16F15344. Add a bulk 10uF plus 100nF decoupling pair near the VDD pin, plus a 100nF cap on each additional VDD pin. Use the internal 32 MHz HFINTOSC for most tasks and gate it off in sleep to reduce active current to tens of microamps per MHz.
Pin 3 (RA3/MCLR) is shared between general-purpose I/O and the device reset; configure MCLRE = OFF in CONFIG1 to free RA3 as digital I/O, but then the MCLR function is unavailable and in-circuit serial programming requires the high-voltage ICD method. Failure to tie unused pins to defined logic levels (via WPU disabled or explicit output) can cause excess sleep current. Configure ADC2 channel enables via the ADCON registers before relying on auto-trigger thresholds.
Keep the ICSP programming header footprint on prototype boards even if not populated in production - it costs roughly $0.05 in board area and saves hours of debugging later. Route the CWG output pairs (e.g., RC2/RC3) as short differential traces to the gate driver to avoid shoot-through. Place the analog AVSS/AVDD pair (or equivalent analog supply pins) with its own decoupling network if using the ADC for precision measurements.
合規資訊
RoHS and REACH compliance per Microchip product declaration. Industrial temperature grade -40C to +85C; extended -40C to +125C available in PIC16LF15344-E/SO variant. Not AEC-Q100 qualified; select automotive-grade PIC parts from Microchip's AEC-Q100 catalog for vehicle applications.
