PIC16LF1824-E/SL - 7KB Flash 8-bit MCU, 32MHz, 14-SOIC | Microchip
MPN: PIC16LF1824-E/SL ✓ Hoạt độngPIC16LF1824-E/SL Tóm tắt
A PIC microcontroller (Programmable Interface Controller) is a compact RISC-based microcontroller featuring integrated Flash program memory, RAM, EEPROM, and a rich set of peripherals such as ADC, comparators, timers, PWM modules, and communication interfaces. PIC MCUs sit in the broader hierarchy of microcontrollers -> embedded controllers -> processors -> semiconductors, serving applications where deterministic real-time control, low cost, and low power are critical.
Key features of the PIC16LF1824-E/SL include 12 I/O pins, an integrated mTouch capacitive touch sensing peripheral, a 10-bit ADC with up to 11 channels, multiple Enhanced USART, SPI, and I2C interfaces, and a hardware 16-bit PWM module. The 'LF' (low-voltage/low-power F) variant operates from 1.8V to 3.6V, drawing as little as 25 nA in sleep mode per Microchip's nanoWatt XLP technology claims.
Architecturally, the device uses a Harvard-style RISC core with a 14-bit instruction word, 8-level hardware stack, and 32 MHz internal oscillator that supports PLL-assisted operation from a 31 kHz source. The mTouch peripheral enables capacitive touch sensing directly on I/O pins, eliminating external touch controller ICs in user-interface designs.
Typical applications include battery-powered IoT sensor nodes, capacitive touch user interfaces, low-power remote controls, wearable health monitoring, and energy harvesting systems. Its combination of 7KB Flash and XLP power modes makes it a frequent choice for cost- and power-constrained embedded designs.
When designing with this MCU, observe the 1.8V to 3.6V supply range; using 5V will damage the LF variant - the non-LF PIC16F1824 supports the wider range. Use the internal 32 MHz oscillator with PLL to eliminate external crystals in space-constrained layouts.
This page consolidates distributor inventory and stock data, pin-compatible drop-in alternatives from Microchip and other vendors, and practical low-power design considerations that are not aggregated in any single manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1824-E/SL — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16LF1824-E/SL (cùng hình factor và footprint) — khác nhau ở Core Architecture, ADC, Package, Internal Oscillator, Maximum CPU Speed.
PIC16LF1824-I/SL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1824-I/SL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1823-I/SL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1554-I/SL
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF1824-E/SL Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16 (Enhanced Mid-Range), 8-bit RISC |
| Instruction Set | 14-bit, 200 ns instruction cycle at 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14) |
| RAM | 256 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Internal Oscillator | 32 MHz with PLL (factory calibrated) |
| Supply Voltage (Vdd) | 1.8 V to 3.6 V (LF variant) |
| I/O Pins | 12 |
| ADC | 10-bit, up to 11 channels |
| PWM Modules | Enhanced 16-bit PWM, multiple ECCP |
| Communication Interfaces | EUSART, SPI, I2C |
| Capacitive Touch | mTouch peripheral on supported I/O |
| Hộp | 14-pin SOIC (SL), 3.90 mm body width |
| Nhiệt độ hoạt động | -40 C to +125 C (E suffix = Extended) |
| Technology | nanoWatt XLP (eXtreme Low Power) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16LF1824-E/SL
| Chân 1 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Chân 2 | RA5 — Digital I/O / analog input / ICSPCLK |
| Chân 3 | RA4 — Digital I/O / analog input / ICSPDAT |
| Chân 4 | RA3/MCLR/VPP — Digital input only / Master Clear (reset) / programming voltage |
| Chân 5 | RC5 — Digital I/O / analog input / PWM output |
| Chân 6 | RC4 — Digital I/O / analog input |
| Chân 7 | RC3 — Digital I/O / analog input / SCL (I2C) |
| Chân 8 | RC2 — Digital I/O / analog input |
| Chân 9 | RC1 — Digital I/O / analog input / SDA (I2C) |
| Chân 10 | RC0 — Digital I/O / analog input |
| Chân 11 | RA2 — Digital I/O / analog input / T0CKI |
| Chân 12 | RA1/ICSPCLK — Digital I/O / analog input / serial programming clock |
| Chân 13 | RA0/ICSPDAT — Digital I/O / analog input / serial programming data |
| Chân 14 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC16LF1824-E/SL phù hợp cho 7 Áp dụngs: Battery-Powered IoT Sensor Node, Capacitive Touch User Interface, Low-Power Remote Control (BLE/Sub-GHz Keyfob), Wearable Health Monitor, Energy-Harvesting Wireless Switch, Industrial Sensor Transmitter (4-20 mA / 0-10 V), Smart Home Lighting Controller.
Battery-Powered IoT Sensor Node
The PIC16LF1824-E/SL is well suited to battery-powered IoT sensor nodes because its 1.8V-3.6V Vdd range and nanoWatt XLP technology deliver sleep currents as low as 25 nA. With 7KB Flash and 256B RAM, it can host a sensor-reading application loop, an ADC conversion, and an EUSART-based transmitter while running at 32 MHz internal oscillator with PLL. Designers should use sleep mode between sample intervals and wake on the internal 32 kHz low-power oscillator to achieve multi-year battery life on a single coin cell in remote telemetry or smart metering applications.
Được đề xuất
Capacitive Touch User Interface
The PIC16LF1824-E/SL integrates the mTouch capacitive sensing peripheral, allowing engineers to implement touch buttons, sliders, or proximity sensors directly on selected I/O pins without an external touch controller IC. The 32 MHz CPU executes the mTouch scan algorithm quickly enough for multi-button interfaces, while the 10-bit ADC handles proximity and water-override detection. Typical designs use 1.8V-3.6V supply from a small lithium cell, making this MCU a strong fit for kitchen appliances, consumer electronics, and IoT lighting controls.
Được đề xuất
Low-Power Remote Control (BLE/Sub-GHz Keyfob)
The PIC16LF1824-E/SL is widely used in remote control keyfobs because it can stay in sleep mode at 25 nA and wake on a button press to drive a 315/433/868 MHz transmitter. Its 7KB Flash holds the rolling-code or fixed-code firmware, and the integrated PWM module can drive an IR LED for infrared variants. The 14-SOIC package keeps the PCB small, while the 1.8V minimum Vdd lets the design run from a single CR2032 cell for several years of standby operation in garage door openers, automotive keyfobs, and IoT actuators.
Được đề xuất
Wearable Health Monitor
Wearable health monitors such as heart-rate patches, pulse oximeters, and step-counters benefit from the PIC16LF1824-E/SL's combination of 1.8V-3.6V operation, 25 nA sleep current, and a 10-bit ADC capable of sampling photodiode or ECG signals. The mTouch peripheral can implement capacitive on/off or mode-change buttons directly through a plastic enclosure, and the EUSART or I2C interface streams data to a BLE module. Designers typically pair the MCU with a CR2032 cell and a low-power BLE SoC for multi-month battery life in disposable or rechargeable wearables.
Được đề xuất
Energy-Harvesting Wireless Switch
Energy-harvesting wireless switches use a piezoelectric or kinetic element to generate just enough energy to transmit a single packet. The PIC16LF1824-E/SL is ideal here because it can boot up from a small reservoir capacitor, transmit via the EUSART, and return to sub-uA sleep within milliseconds. The 32 MHz internal oscillator with PLL eliminates any startup delay associated with external crystals. Operating from 1.8V-3.6V directly matches the output range of typical energy-harvesting boost converters used in EnOcean-compatible switches and self-powered IoT buttons.
Được đề xuất
Industrial Sensor Transmitter (4-20 mA / 0-10 V)
The PIC16LF1824-E/SL's extended -40 C to +125 C temperature range makes it suitable for industrial 4-20 mA or 0-10 V sensor transmitters used in process control. Its 10-bit ADC reads the sensor element, the EUSART drives an isolated RS-485 link, and the 16-bit PWM module can synthesize a 0-10 V analog output with adequate resolution. The 'E' suffix temperature grade ensures operation near motors, solenoids, or in outdoor enclosures, while the wide 1.8V-3.6V Vdd accepts a regulated 3.3V rail from common industrial DC-DC converters.
Được đề xuất
Smart Home Lighting Controller
Smart home lighting controllers, including dimmers and RGBW controllers, leverage the PIC16LF1824-E/SL's integrated 16-bit PWM and mTouch peripherals. The PWM module drives LED strings with smooth fades, while the mTouch peripheral implements touch dimming without mechanical switches. The 14-SOIC (SL) package supports reflow-compatible surface-mount assembly for mass production. The 1.8V-3.6V Vdd accepts a regulated 3.3V supply from a small AC-DC module, making it suitable for retrofit LED controllers and low-voltage landscape lighting products.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1824-E/SL — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16LF1824-I/SL | PIC16F1824-I/SL | PIC16LF1823-I/SL | PIC16LF1554-I/SL |
|---|---|---|---|---|---|
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Vdd Range | 1.8V - 3.6V | 1.8V - 3.6V | 1.8V - 5.5V | 1.8V - 3.6V | 1.8V - 3.6V |
| Flash | 7 KB | 7 KB | 7 KB | 3.5 KB | 7 KB |
| RAM | 256 B | 256 B | 256 B | 128 B | 256 B |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| mTouch Cap Sense | Yes | Yes | Yes | Yes | No |
| Temperature Grade | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
Bảo phân biệt quan trọng
- Extended temperature grade in same 14-SOIC footprint (vsPIC16LF1824-I/SL)
- Full 7KB Flash and 256B RAM vs reduced-memory family members (vsPIC16LF1823-I/SL)
- 1.8V-3.6V low-voltage operation (vsPIC16F1824-I/SL)
Ghi chú thiết kế
Estimated: at 32 MHz active current is roughly 2 mA at 3.3V per the typical characteristics in datasheet 41419A; in the deepest sleep state with peripherals off, current drops to ~25 nA. For battery-life calculations, assume duty-cycling with the 32 kHz LFINTOSC as wake-up source and the ADC disabled between conversions. Decoupling: place 100 nF X7R as close as practical to VDD pin 1, plus a bulk 10 uF tantalum or ceramic within 1 cm to handle the 32 MHz core switching transients.
Keep the MCLR pin (pin 4) bypassed with a 10 kohm pull-up to VDD if not driven by an external supervisor; Microchip datasheet 41419A recommends a 100 nF capacitor on MCLR for in-circuit serial programming (ICSP) noise immunity. For the 14-SOIC package, allow at least 0.2 mm clearance around pin 1 marker for reflow profiling and probe access during in-circuit debug. PPS (Peripheral Pin Select) mappings must be configured in firmware before alternate functions appear on selected I/O.
Do not exceed 3.6V on VDD - the 'LF' variant is not 5V tolerant despite sharing the same datasheet as the PIC16F1824. A common substitution mistake is to drop a PIC16F1824 firmware onto an LF device and apply 5V, which latches up. Also: when migrating from PIC16F1824 code, the LF variant requires the LFOFR / BOR configuration bits to enable the low-power brown-out reset at the lower threshold (2.6V default vs 4.0V for the F variant). Always re-validate configuration bits after LF substitution.
For I2C bus speeds above 400 kHz, add 4.7 kohm pull-ups to VDD (not 3.3V if VDD is below 3.0V) per datasheet 41419A I2C peripheral specification. The EUSART in high-speed mode (BRGH = 0, BRG16 = 1) supports up to 5 Mbps but requires accurate FOSC setting; use the PLL block to lock the 32 MHz oscillator to a 31 kHz source if crystal accuracy is needed. Probe the MCLR line during ICSP to ensure no spurious resets during in-field firmware upgrades.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip environmental compliance documentation. Lead-free NiPdAu finish, MSL1 moisture sensitivity. Not AEC-Q100 qualified - for AEC-Q100 automotive grade, source a separate Q100-qualified variant (none currently offered for this part number) or up-screen parts.
