PIC16LF18324T-I/SL - 8-bit XLP MCU, 7KB Flash, 32MHz | Microchip
MPN： PIC16LF18324T-I/SL ✓ 啟用中PIC16LF18324T-I/SL 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), and a rich set of peripherals such as timers, ADC, communication interfaces, and I/O. PIC microcontrollers belong to the 8-bit RISC microcontroller family, sitting within the broader hierarchy of microcontrollers -> microprocessors -> semiconductors. The 8-bit PIC architecture is widely used in cost-sensitive, low-power embedded designs where deterministic interrupt response and small code footprint matter more than raw computational throughput.
Key features of the PIC16LF18324 include Peripheral Pin Select (PPS) for flexible signal placement, two I2C, two SPI and one EUSART serial interfaces, 2 PWM outputs, 2 10-bit ADCs with up to 11 channels, 2 comparators, 2 8-bit DACs, and 1 5-bit DAC. The device also integrates Core Independent Peripherals such as Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), and Numerically Controlled Oscillator (NCO), enabling complex functions without CPU intervention.
Typical applications include low-power IoT sensor nodes, battery-powered wearables, consumer appliances, LED lighting controllers, and general-purpose embedded control. The 14-pin SOIC footprint makes it a strong choice for designs migrating from legacy PIC16F parts or migrating down from larger PIC18F devices when cost and PCB area are constrained.
When designing with this part, designers should evaluate the LF (1.8-3.6V) vs. F (1.8-5.5V) variant based on system voltage rails, and confirm pinout compatibility if substituting with PIC16LF18344 (20-pin) variants. PPS remapping must be configured in firmware at startup to assign peripheral functions to physical pins.
This page synthesizes distributor pricing, same-brand and cross-brand drop-in equivalents, and practical design notes not found in the manufacturer datasheet alone, helping engineers select and qualify the part faster.
直接替換替代品，適用於 PIC16LF18324T-I/SL — 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： PIC16LF18324T-I/SL （相同外形與佔位） — 差異在於 ADC, Core Architecture, Core Independent Peripherals, DAC, I/O Pins.
PIC16F18324T-I/SL
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16LF18323T-I/SL
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16LF18324-I/SL
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16LF18324T-I/SL 最大額定值與電氣特性
| Core Architecture | PIC16 8-bit enhanced mid-range RISC |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage (VDD) | 1.8 V to 3.6 V (LF) |
| Supply Voltage Range (PIC16F variant) | 1.8 V to 5.5 V (F) |
| I/O Pins | 12 (on 14-pin SOIC) |
| ADC | 2 x 10-bit, up to 11 channels |
| Comparators | 2 |
| DAC | 2 x 8-bit, 1 x 5-bit |
| Timers | Multiple (see datasheet) |
| PWM Channels | 2 (10-bit) |
| Communication Interfaces | 2 x I2C, 2 x SPI, 1 x EUSART |
| Peripheral Pin Select (PPS) | Yes |
| Core Independent Peripherals | CLC, CWG, NCO |
| 封裝 | 14-pin SOIC (SL) |
| 工作溫度 | -40 C to +85 C (Industrial, "I") |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
PIC16LF18324T-I/SL 腳位配置
| 腳位 1 | RA3 — Bidirectional I/O pin / analog input |
| 腳位 2 | RA2 — Bidirectional I/O pin / analog input |
| 腳位 3 | RA1/ICSPCLK — I/O pin / serial programming clock |
| 腳位 4 | RA0/ICSPDAT — I/O pin / serial programming data |
| 腳位 5 | VSS — Ground reference |
| 腳位 6 | RA4 — Bidirectional I/O pin / analog input |
| 腳位 7 | RA5 — Bidirectional I/O pin / analog input |
| 腳位 8 | VDD — Positive power supply |
| 腳位 9 | RA7 — Bidirectional I/O pin / analog input |
| 腳位 10 | RA6 — Bidirectional I/O pin / analog input |
| 腳位 11 | RC5 — Bidirectional I/O pin / analog input |
| 腳位 12 | RC4 — Bidirectional I/O pin / analog input |
| 腳位 13 | RC3 — Bidirectional I/O pin / analog input |
| 腳位 14 | RC2 — Bidirectional I/O pin / analog input |
典型應用
PIC16LF18324T-I/SL 適用於 6 應用s: Battery-Powered IoT Sensor Node, Consumer Appliance Control, LED Lighting Controller, Wearable Health Device, Industrial Sensor Interface, Smart Home Edge Node.
Battery-Powered IoT Sensor Node
The PIC16LF18324T-I/SL is purpose-built for battery-powered IoT sensor nodes thanks to its eXtreme Low Power (XLP) technology, which delivers sleep currents below 100 nA typical and active currents in the microamp range at low MHz. The wide 1.8 V to 3.6 V VDD supports single Li-coin, 2xAA, or single Li-Ion cells directly without a boost converter. Its 7 KB Flash and PPS flexibility let designers run a LoRaWAN / BLE stack front-end or simple Modbus slave, while the 10-bit ADC and CLC cells can wake the CPU only on threshold-crossing events. This results in multi-year battery life on a single CR2032 coin cell.
推薦
Consumer Appliance Control
In coffee makers, washing machines, microwaves, and air purifiers, the PIC16LF18324T-I/SL handles keypad scanning, LCD/LED display driving, and motor/valve control. Its 2 10-bit ADCs read temperature and humidity sensors, 2 PWMs drive brushless DC fans or solenoids, and 2 I2C busses connect to display drivers and EEPROM. The CWG (Complementary Waveform Generator) simplifies half-bridge drive for small motors. The 14-SOIC small footprint enables cost-sensitive consumer designs while providing ample MIPS for state-machine control firmware.
推薦
LED Lighting Controller
The PIC16LF18324T-I/SL's 2 10-bit PWM outputs, complemented by the CWG module, can drive LED strings with smooth dimming and color mixing for RGBW lighting. The high-resolution PWM enables flicker-free dimming down to low brightness levels required for mood lighting and human-centric circadian designs. PPS lets designers route PWM outputs to any GPIO, simplifying PCB layout for multi-channel LED drivers. XLP low-power features keep standby consumption under 1 mW when lights are off, meeting stringent ENERGY STAR idle requirements for connected lighting products.
推薦
Wearable Health Device
Wearable fitness bands, smartwatches, and continuous glucose monitors benefit from the PIC16LF18324T-I/SL's LF 1.8-3.6 V operation, ultra-low XLP sleep current, and small 14-SOIC footprint that fits inside wristbands and patches. The 10-bit ADC reads heart-rate (PPG), skin temperature, and galvanic skin response signals, while the 2 comparators handle threshold detection for low-power wake events. CLC cells can run simple FIR filters without waking the CPU, further reducing average power. The integrated EUSART and I2C interface with BLE/Bluetooth Low Energy modules.
Industrial Sensor Interface
For 4-20 mA loop sensors, RTD/thermocouple readers, and factory-floor digital I/O modules, the PIC16LF18324T-I/SL provides industrial-grade ESD performance, a wide -40 C to +85 C industrial temperature range, and reliable I2C/SPI/EUSART communications to upstream PLCs or gateways. The 2 10-bit ADCs digitize multiple analog sensor channels, while the DAC generates excitation currents for RTD measurements. PPS allows flexible bus topology on congested industrial backplanes. With the LF variant on 3.3 V, isolated DC-DC converters keep the MCU domain clean from ground loops.
推薦
Smart Home Edge Node
In smart thermostats, door/window sensors, and BLE/Zigbee end devices, the PIC16LF18324T-I/SL provides the core intelligence to read sensors, run simple state machines, and forward events to a coordinator over UART or SPI. Its XLP sleep modes let a coin-cell door sensor last 5-10 years on a single battery, eliminating service calls. The CWG and NCO modules can synthesize custom waveforms for ultrasonic or IR communications without waking the CPU. PPS makes pin assignment flexible across multiple product variants sharing one PCB.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LF18324T-I/SL — 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 | PIC16F18324T-I/SL | PIC16LF18323T-I/SL | PIC16LF18324-I/SL |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL) | 14-SOIC (SL) | 14-SOIC (SL) | 14-SOIC (SL) |
| Flash Memory | 7 KB (4K x 14) | 7 KB | 3.5 KB (-50%) | 7 KB |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| I/O Pins | 12 | 12 | 12 | 12 |
| ADC | 2 x 10-bit | 2 x 10-bit | 2 x 10-bit | 2 x 10-bit |
| PPS Support | Yes | Yes | Yes | Yes |
| XLP Technology | Yes | Yes | Yes | Yes |
主要差異化特點
- Lowest voltage operation in the 1832x family (對比PIC16F18324T-I/SL)
- 7 KB Flash with same pinout as 3.5 KB variant (對比PIC16LF18323T-I/SL)
- Identical die in tube packaging for prototyping (對比PIC16LF18324-I/SL)
設計說明
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 8), plus a bulk 1-10 uF tantalum or ceramic capacitor on the same rail. For XLP designs targeting nanoamp sleep currents, ensure no leakage paths exist on VDD - even a 1 MOhm resistor to ground can leak 1.8 uA at 1.8V. Use the LF variant for 3.3 V systems; the F variant adds no benefit below 3.6 V. Verify quiescent current with the datasheet's typical current vs. frequency chart.
Keep the ICSP programming pins (RA0/ICSPDAT and RA1/ICSPCLK) accessible on the PCB even if used as I/O, to allow in-circuit firmware updates during production and field service. Add a 4-pin or 6-pin header (or test pads) for PICkit 4 / MPLAB Snap connectivity. When using PPS, route peripherals to pins that minimize trace crossings; the datasheet pin map pinout shows which pins support which PPS inputs/outputs. Place the decoupling cap within 3 mm of VDD for best noise immunity.
PPS peripheral functions must be unlocked, configured, and locked back via the PPSLOCK register in firmware before use - many developers forget this step and see no peripheral output. The LF variant operates only up to 3.6 V; connecting a 5 V supply will damage the part - always verify voltage rail before power-up. The 'T' suffix means Tape & Reel; for prototypes, order the -I/SL (Tube) variant instead. The device has no internal voltage reference for ADC; use VDD as reference unless the FVR (Fixed Voltage Reference) is enabled.
合規資訊
RoHS and REACH compliant per Microchip product page. Industrial temperature grade (-40 C to +85 C). Not AEC-Q100 qualified - for automotive applications consider PIC16F18324-E/SL automotive grade variants or dsPIC33EP family.
