PIC16LF18426T-I/SL - 28KB Flash 8-bit XLP MCU | Microchip
MPN: PIC16LF18426T-I/SL ✓ Hoạt độngPIC16LF18426T-I/SL Tóm tắt
An 8-bit microcontroller (MCU) is a programmable processor built around an 8-bit data path, optimized for deterministic real-time control with low power consumption. Within the broader semiconductor hierarchy, an MCU is a microprocessor family -> microcontroller -> 8-bit MCU -> PIC16 family -> PIC16LF184xx sub-family. The PIC16 core uses a RISC-style Harvard architecture with 14-bit instruction words, giving 16 KB words of code space addressable from 28 KB Flash; the LF variant targets low-voltage, battery-backed applications.
Key features include XLP sleep currents measured in the tens of nanoamperes, peripheral pin select (PPS) for flexible signal routing, an idle/doze/current-shielding scheme for power budgeting, and Core Independent Peripherals (CIPs) that execute timing-critical tasks without CPU intervention. The 12-bit ADCC and 5-bit DAC support sensor conditioning and bias generation, while the CWG drives synchronous MOSFET half-bridges for LED, motor, or PFC control. The integrated EUSART and SPI/I2C cover most sensor-bus and host-communication requirements.
Typical applications include battery-powered IoT sensor nodes, low-power wireless remote controls, wearable health patches, energy-harvesting switches, e-metering peripherals, and industrial sensor conditioning front-ends. In each case the LF voltage range, the nanoampere sleep current, and the 12-bit ADC with internal reference remove the need for a separate analog front-end IC.
When designing with this device, budget active and sleep currents separately: peak active current at 32 MHz from a 3.3 V rail is approximately 4-5 mA, while sleep current with the RTCC and ADC active stays below 1 microampere. Configure the PPS mapping early to avoid pin re-routing late in PCB design.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF18426T-I/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 PIC16LF18426T-I/SL (cùng hình factor và footprint) — khác nhau ở ADC, DAC, Operating Temperature, PWM Channels, Package.
PIC16LF18426-I/SL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18426T-I/SL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF18446-I/SL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF18426T-I/JQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF18424T-I/SL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF18426T-I/SL Tỷ lệ tối đa & tính chất điện
| Core | PIC16 8-bit RISC Harvard |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| SRAM | 2 KB |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Hộp | 14-pin SOIC (SL) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| ADC | 12-bit ADCC |
| DAC | 5-bit DAC |
| PWM Channels | 2 |
| Comparators | Yes |
| CWG | Complementary Waveform Generator |
| EUSART | 1 |
| SPI / I2C | Yes / Yes |
| XLP Sleep Current | Typical 50-100 nA range (XLP mode) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16LF18426T-I/SL
| Chân 1 | RA3/MCLR — Digital I/O / Master Clear (reset) input |
| Chân 2 | RC5 — Digital I/O / PPS-mappable peripheral |
| Chân 3 | RC4 — Digital I/O / PPS-mappable peripheral |
| Chân 4 | RC3 — Digital I/O / PPS-mappable peripheral |
| Chân 5 | RC2 — Digital I/O / PPS-mappable peripheral |
| Chân 6 | RC1 — Digital I/O / PPS-mappable peripheral |
| Chân 7 | RC0 — Digital I/O / PPS-mappable peripheral |
| Chân 8 | VSS — Ground reference |
| Chân 9 | RA0 — Digital I/O / PPS-mappable peripheral |
| Chân 10 | RA1 — Digital I/O / PPS-mappable peripheral |
| Chân 11 | RA2 — Digital I/O / PPS-mappable peripheral |
| Chân 12 | RA4 — Digital I/O / PPS-mappable peripheral |
| Chân 13 | RA5 — Digital I/O / PPS-mappable peripheral |
| Chân 14 | VDD — Positive supply 1.8V to 3.6V |
Ứng dụng tiêu biểu
PIC16LF18426T-I/SL phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Node, Industrial Sensor Conditioning Front-End, Wearables and Health Monitoring Patches, Smart Home and Building Automation, Portable Consumer Electronics and Remote Controls, Energy Metering and Sub-Hz Data Loggers.
Battery-Powered IoT Sensor Node
The PIC16LF18426T-I/SL's 1.8-3.6 V VDD range and XLP nanoampere sleep current below 1 microampere make it ideal for coin-cell or 2xAA battery-powered IoT sensor nodes. The 12-bit ADCC handles direct temperature, light, or analog sensor conditioning without an external front-end IC, while SPI/I2C interfaces low-power wireless transceivers like BLE or LoRa. Realistic battery life on a CR2032 with 1% duty-cycle sensor reads typically exceeds 5 years; the 28 KB Flash accommodates lightweight BLE provisioning stacks and over-the-air update handlers. Compared to a discrete 8-bit MCU family (PIC16LF183xx), the 18426 ADCC with hardware averaging reduces firmware loop overhead.
Được đề xuất
Industrial Sensor Conditioning Front-End
The PIC16LF18426T-I/SL serves as a 4-20 mA loop-powered sensor transmitter, where its 1.8 V minimum VDD and 12-bit ADCC with hardware accumulation handle bridge sensor and RTD linearization directly. The CWG (Complementary Waveform Generator) drives isolated H-bridge outputs for actuator control; the 5-bit DAC supplies excitation bias for platinum RTDs. SPI backhaul to a host PLC avoids protocol stack overhead. The -40 C to +85 C industrial temperature grade handles plant-floor environments, and the 14-SOIC is suitable for through-hole-friendly retrofit designs.
Được đề xuất
Wearables and Health Monitoring Patches
The PIC16LF18426T-I/SL is well suited to wearable health patches and continuous-monitoring sensor strips where board space and battery life are critical. Its 14-SOIC footprint fits compact PCB layouts, the 12-bit ADCC acquires photoplethysmography (PPG) or bioimpedance signals with 0.5 mV resolution, and XLP sleep holds total quiescent current below 1 microampere between samples. The integrated comparator and 5-bit DAC drive low-power LED pulse-oximetry front-ends without extra analog ICs. 28 KB Flash accommodates lightweight BLE communication stacks and on-device data compression.
Được đề xuất
Smart Home and Building Automation
The PIC16LF18426T-I/SL powers battery-powered smart-home sensors such as wireless door/window contacts, occupancy sensors, and smart thermostats. Its EUSART and SPI/I2C interfaces cover Zigbee, Thread, BLE, and sub-GHz radio modules; the 12-bit ADCC reads light, temperature, and humidity transducers with 0.1 C accuracy after calibration. The CWG generates the audible alarm chirp for smoke or CO sensor bases without extra PWM ICs. Battery life on a 2xAA pack typically exceeds 7 years at one event per minute; the LF variant's 1.8 V floor is critical for primary lithium cell deployment.
Được đề xuất
Portable Consumer Electronics and Remote Controls
The PIC16LF18426T-I/SL serves as the main MCU in voice remote controls, electronic shelf labels, and e-reader peripherals where standby current and tactile button response time are key. Its nanoampere sleep with wake-on-touch supports years of standby on a coin cell; the 12-bit ADCC decodes resistive touch buttons or capacitive sense via charge-time measurement; the integrated CWG drives haptic feedback buzzers. The 32 MHz core handles IR or sub-GHz protocol encoding in firmware without external peripherals, and the 14-SOIC is small enough for slim remote enclosures.
Được đề xuất
Energy Metering and Sub-Hz Data Loggers
The PIC16LF18426T-I/SL fits battery-powered energy meters, gas-meter AMR modules, and environmental data loggers that pulse-count then sleep. The 32 MHz core handles pulse accumulation and CRC checks; the 12-bit ADCC samples battery voltage for state-of-charge estimation; the EEPROM stores rolling 30-90 day data logs; and the XLP sleep holds quiescent below 100 nanoamperes with the WDT active. Its 1.8 V minimum VDD is critical for metering units powered by harvested indoor light or thermal gradients, where the supply may dip well below 2 V. 28 KB Flash accommodates DLMS/COSEM or wM-Bus protocol stacks.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF18426T-I/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 | PIC16LF18426-I/SL | PIC16F18426T-I/SL | PIC16LF18446-I/SL | PIC16LF18424T-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 |
| Flash Memory | 28 KB | 28 KB | 28 KB | 32 KB) | 14 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 4 KB | 1 KB |
| Operating Voltage | 1.8 V to 3.6 V | 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 |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| ADC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Bảo phân biệt quan trọng
- Same-package memory upgrade with double the RAM (vsPIC16LF18446-I/SL)
- Cost-down option with half the Flash (vsPIC16LF18424T-I/SL)
- Wide-voltage LF variant vs F variant (vsPIC16F18426T-I/SL)
Ghi chú thiết kế
Estimated: at VDD=3.3 V, 32 MHz active core draws approximately 4-5 mA peak, while XLF sleep with RTCC and WDT active stays below 1 microampere per Microchip XLP datasheet. For coin-cell designs on CR2032 (220 mAh), budget active duty cycle at less than 0.1% to achieve 5+ year battery life. Use the IDLE current mode for sensor read events that need ADC + computation but no I/O activity. The 1.8 V minimum VDD is critical for single-cell Li-FeS2 or depleted Li-MnO2 primary cells.
Place a 100 nF decoupling capacitor within 3 mm of the VDD pin (pin 14) with the ground return via to VSS (pin 8) directly underneath; this forms the shortest high-frequency loop. Add a 1-10 uF bulk capacitor near the IC if the supply impedance exceeds 1 ohm at 10 MHz. For ADC accuracy, route analog signals (RA0/RA1) away from PWM/CWG outputs (RC2/RC3/RC4/RC5) by at least 3x the trace width. Place the ICGSP crystal or resonator (if used) within 5 mm of the OSC pins.
Do not enable interrupts before configuring PPS; PPS registers are unlocked via IOCON and must be written in the unlock sequence per datasheet. The MCLR pin (RA3/MCLR, pin 1) is shared with general-purpose I/O - configure MCLREbits FUSE to repurpose as RA3 only if the reset function is not needed. The 32 MHz internal oscillator needs at least 2.0 V VDD for full-speed operation; below 2.0 V, switch to 16 MHz or 8 MHz via the OSCCON register to maintain timing accuracy.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature grade; not AEC-Q100 qualified - choose PIC16F18426 (F variant) for AEC-Q100 Grade 1/Q0 functional safety applications.
