PIC16LF18344-I/P - 8-bit MCU, 7KB Flash, 32MHz XLP | Microchip
料号： PIC16LF18344-I/P ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.99 | $1.99 |
| 10 | $1.79 | $17.90 |
| 100 | $1.55 | $155.00 |
| 500 | $1.35 | $675.00 |
| 1,000 | $1.2 | $1,200.00 |
PIC16LF18344-I/P 概述
A PIC microcontroller (Programmable Integrated Circuit) is an 8-bit Harvard-architecture RISC MCU widely used in embedded systems. The PIC16F1 family adds modern peripherals such as Peripheral Pin Select (PPS), Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), and enhanced PWM/CCP to the classic PIC16 baseline. The "LF" prefix denotes the wide-voltage, low-power variant supporting 1.8V-3.6V operation, making it ideal for battery-powered and energy-harvesting products. Within the power-management IC hierarchy, this MCU integrates CPU, memory, ADC, timers, and communication peripherals in one die.
Key features include 7KB Flash, 512 bytes RAM, 256 bytes EEPROM, up to 18 I/O pins, a 10-bit ADC with up to 17 channels, multiple timers (Timer0/1/2), enhanced PWM, MSSP/I2C/SPI, EUSART, CLC, CWG, and PPS for flexible pin mapping. XLP technology delivers nanoWatt sleep currents in the order of single-digit micro-amperes, enabling years of operation from a coin cell. The 32 MHz internal oscillator eliminates external crystals in many designs, reducing BOM cost.
The device uses a 14-bit instruction word RISC core with hardware stack and accumulator-based architecture. The PPS module remaps digital functions to virtually any I/O pin, simplifying PCB layout. Core-independent peripherals (CLC, CWG, PWM) operate without CPU wake-up, lowering average power and enabling deterministic real-time responses in low-power loops.
Typical uses span battery management, IoT sensor nodes, wearable devices, consumer electronics, smart-home controls, motor control, lighting, and human-machine interface (HMI) panels. The 20-pin PDIP package is breadboard-friendly and favored for prototyping, education, and through-hole production designs.
When designing with this MCU, allocate I/O mapping early since PPS reassignment can conflict if multiple peripherals target the same pin. For ultra-low-power designs, prefer sleep/idle modes with peripheral interrupt wake-up over polling loops. The internal 32 MHz oscillator is factory-calibrated; if USB or precision timing is required, an external crystal must be added.
This page synthesizes distributor pricing, datasheet references, drop-in same-family alternatives, and practical design notes not always present in the manufacturer datasheet.
直接替换替代料： PIC16LF18344-I/P ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16LF18344-I/P （相同外形与封装尺寸） ——差异在于 Package, ADC, Program Memory (Flash), Core, Core Independent Peripherals.
快速对比工具——选择替代料号进行并排对比：
PIC16F18344-I/P
✅ 直接替换✓ 有现货
$0.81 / 个
查看数据手册 →PIC16LF18324-I/P
✅ 直接替换✓ 有现货
$1.05 / 个
查看数据手册 →PIC16LF18344-I/GZ
✅ 直接替换✓ 有现货
$1.3 / 个
查看数据手册 →PIC16LF18326-E/JQ
✅ 直接替换✓ 有现货
$0.99 / 个
查看数据手册 →PIC16LF1829-I/P
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF18344-I/P 最大额定值与电气特性
| Core | PIC 8-bit RISC |
| Family | PIC16F1 / PIC16LF183xx |
| Program Memory | 7 KB Flash (4K x 14 words) |
| RAM | 512 bytes |
| EEPROM | 256 bytes |
| CPU Speed | 32 MHz (8 MIPS) |
| Operating Voltage | 1.8 V to 3.6 V (LF variant) |
| I/O Pins | Up to 18 |
| ADC | 10-bit, up to 17 channels |
| Timers | Timer0, Timer1, Timer2 |
| PWM | Enhanced PWM, multiple channels |
| Communication | MSSP I2C/SPI, EUSART |
| Core Independent Peripherals | CLC, CWG, PPS |
| 封装 | 20-pin PDIP (0.300", 7.62 mm) |
| 工作温度 | -40C to +85C (Industrial) |
| 安装类型 | Through-Hole |
| RoHS 状态 | Compliant |
PIC16LF18344-I/P 引脚配置
| 引脚 1 | RA5 — Bidirectional I/O pin / analog input |
| 引脚 2 | RA4 — Bidirectional I/O pin / analog input |
| 引脚 3 | RA3/MCLR/VPP — I/O / Master Clear (reset) / programming voltage |
| 引脚 4 | RA2 — Bidirectional I/O pin / analog input |
| 引脚 5 | RA1 — Bidirectional I/O pin / analog input |
| 引脚 6 | RA0 — Bidirectional I/O pin / analog input |
| 引脚 7 | VSS — Ground reference |
| 引脚 8 | VDD — Positive supply voltage (1.8V-3.6V) |
| 引脚 9 | RB7 — Bidirectional I/O pin / analog input |
| 引脚 10 | RB6 — Bidirectional I/O pin / analog input |
| 引脚 11 | RB5 — Bidirectional I/O pin / analog input |
| 引脚 12 | RB4 — Bidirectional I/O pin / analog input |
| 引脚 13 | RC0 — Bidirectional I/O pin |
| 引脚 14 | RC1 — Bidirectional I/O pin |
| 引脚 15 | RC2 — Bidirectional I/O pin |
| 引脚 16 | RC3 — Bidirectional I/O pin |
| 引脚 17 | RC4 — Bidirectional I/O pin |
| 引脚 18 | RC5 — Bidirectional I/O pin |
| 引脚 19 | RC6 — Bidirectional I/O pin |
| 引脚 20 | RC7 — Bidirectional I/O pin |
典型应用
PIC16LF18344-I/P 适用于 7 应用s: Battery-Powered IoT Sensor Nodes, Consumer Remote Controls and Human-Machine Interface (HMI), Industrial Sensor Signal Conditioning, LED Lighting and Dimming Control, Wearable Health and Fitness Devices, Smart Home Sensor and Actuator Hubs, Motor Control and Small BLDC Drivers.
Battery-Powered IoT Sensor Nodes
The PIC16LF18344-I/P's 1.8-3.6 V VDD range and XLP nanoWatt sleep currents (single-digit microampere range) make it ideal for IoT sensor nodes that run for years on coin-cell or 2xAA batteries. With 7 KB Flash and a 32 MHz CPU, it can host BLE/Zigbee sub-controller command sets, periodic sensor reads, and edge filtering. Place the MCU in sleep between wake events triggered by CLC/CWG peripherals or ADC threshold interrupts; this duty-cycling pattern keeps average current in the tens of microampere range while the radio module dominates burst-mode consumption.
推荐
Consumer Remote Controls and Human-Machine Interface (HMI)
The PIC16LF18344-I/P is well-suited to consumer remote controls thanks to its eXpert enable of low-power wake-on-touch via CLC, capacitive touch via ADC, and IR transmit via PWM. The 32 MHz CPU supports NEC/RC5 IR protocol encoding without external timers. Configure the device in sleep with CLC generating wake interrupts from a touch button; on wake, transmit IR and re-enter sleep, achieving standby battery life measured in years.
推荐
Industrial Sensor Signal Conditioning
The PIC16LF18344-I/P serves industrial sensor signal conditioning with its 10-bit ADC (up to 17 channels), EUSART, and I2C/SPI MSSP peripheral. The 32 MHz instruction rate supports moving-average filtering and linearization math on thermistor, RTD, or strain-gauge signals. Use PPS to remap UART/I2C/SPI to any I/O, simplifying PCB layout in dense industrial enclosures. Industrial-grade -40C to +85C operation handles factory-floor temperature ranges.
推荐
LED Lighting and Dimming Control
The PIC16LF18344-I/P drives LED lighting and dimming with its enhanced PWM and CWG peripherals generating complementary PWM with dead-band control for half-bridge LED drivers. The CLC can mix multiple analog/digital inputs to drive the CWG without CPU intervention, freeing the 32 MHz core for color-mixing algorithms and DALI/Zigbee lighting protocols. Configure PWM frequency above 20 kHz to keep switching above the audible band.
推荐
Wearable Health and Fitness Devices
The PIC16LF18344-I/P fits wearable health and fitness devices with its low-voltage 1.8 V operation, XLP sleep current, and small code footprint. Implement heart-rate or step-counting algorithms in 7 KB Flash, sample PPG/ECG signals with the 10-bit ADC, and stream results via I2C to a Bluetooth SoC. Sleep current in the microamp range combined with a CR2032 coin cell enables multi-week wear time between battery changes.
推荐
Smart Home Sensor and Actuator Hubs
The PIC16LF18344-I/P serves smart-home sensor/actuator hubs with its generous I/O count (up to 18), flexible PPS mapping, and core-independent peripherals. Aggregate multiple sensor inputs (temperature, humidity, motion) over I2C/SPI, run local decision logic in CLC without CPU wake, and report via UART/Zigbee/Wi-Fi to a gateway. The wide VDD range supports direct battery or USB-powered operation.
推荐
Motor Control and Small BLDC Drivers
The PIC16LF18344-I/P handles small motor control such as BLDC fans, vibration motors, or stepper drivers using its CWG (Complementary Waveform Generator), enhanced PWM with dead-band, and high-speed ADC for back-EMF sensing. 32 MHz instruction rate supports sensorless commutation algorithms. CLC can combine Hall-sensor signals with PWM logic for low-latency commutation without CPU wake-up, reducing motor noise and jitter.
推荐
推荐产品汇总
工程参考数据： PIC16LF18344-I/P ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16F18344-I/P | PIC16LF18324-I/P | PIC16LF18344-I/GZ | PIC16LF1829-I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin PDIP | 20-pin PDIP - same | 20-pin PDIP - same | 20-pin UQFN (SMD variant) | 20-pin PDIP - same |
| 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 |
| Program Memory | 7 KB Flash | 7 KB Flash | 7 KB Flash | 7 KB Flash | 8 KB Flash |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| RAM | 512 bytes | 512 bytes | 512 bytes | 512 bytes | 1024 bytes |
| I/O Pins | Up to 18 | Up to 18 | Up to 18 | Up to 18 | Up to 18 |
| Core Independent Peripherals | CLC, CWG, PPS | CLC, CWG, PPS | CLC, CWG, PPS | CLC, CWG, PPS | No CLC/CWG |
| Unit Price (qty 1) | $1.99 | ~$2.05 | ~$1.85 | ~$1.95 | ~$2.10 |
关键差异点
- Lower minimum operating voltage than F variant （对比 PIC16F18344-I/P)
- More advanced peripheral set than legacy PIC16F1 （对比 PIC16LF1829-I/P)
- SMD package option with identical die （对比 PIC16LF18344-I/GZ)
设计说明
PIC16LF18344-I/P sleep current is in the single-digit microampere range when configured with XLP settings (disable unused peripherals, use internal LFINTOSC for WDT). Estimated: at 3.0 V VDD with sleep current ~1 uA and average duty-cycle current ~100 uA @ 1% wake ratio, average draw is ~2 uA - a CR2032 (~220 mAh) supports ~12 years theoretical runtime. Verify exact sleep current in datasheet electrical characteristics table.
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 8) and connect VSS (pin 7) directly to the ground plane with a short trace. For low-noise ADC measurements, route analog signals (RA0-RA5) away from digital switching lines and use a separate analog ground if available. Use PPS carefully - a peripheral output mapped to a pin can conflict with another peripheral's default mapping; always lock unused PPS pins to avoid glitches.
Do not exceed 3.6 V on VDD - the LF variant lacks the 5V tolerance of the F variant and may suffer permanent damage. Always configure MCLR (pin 3) as a reset input with appropriate RC delay if external reset is required, or tie to VDD via internal weak pull-up if unused. Do not enable the internal 32 MHz oscillator until the system voltage has stabilized above 1.8 V, otherwise unstable code execution may result. Estimated: HFINTOSC startup time is ~2 us per datasheet - factor this into wake-from-POR timing.
The 32 MHz internal oscillator has +/- 2% accuracy across voltage and temperature; for UART communications, verify baud-rate error budget stays below +/- 2% at the chosen system clock. Use EUSART auto-baud detection for robust serial links with external devices. When routing SPI lines at >1 MHz, keep traces short (<50 mm) and add 33 ohm series resistors if reflections appear on scope.
合规信息
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified - choose PIC16F18344-I/P automotive variants if required.
