PIC16LF819-I/MLTSL - 8-bit MCU, 10MHz, 3.5KB Flash, 28-QFN | Microchip
MPN: PIC16LF819-I/MLTSL ✓ فعالPIC16LF819-I/MLTSL نمای کلی
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and peripheral subsystems (ADC, timers, communication interfaces, GPIO) on one die. The PIC16F family sits in the 8-bit microcontroller category, which itself belongs to the embedded processor hierarchy: MCU -> microcontroller -> embedded processor -> semiconductor IC. The PIC16F819/819 lineage uses a Harvard RISC architecture with 35 single-word instructions and 200 ns instruction execution time at 20 MHz, balancing deterministic real-time control with simple instruction set economy.
Key features of the PIC16LF819 include nanoWatt power management with multiple idle/sleep modes, an internal oscillator that eliminates external clock components in many designs, an ICD (In-Circuit Debugger) interface for MPLAB toolchain integration, and a wide operating voltage window supporting both 3.3 V and 5 V rails. The device provides self-programming Flash, a watchdog timer with on-chip oscillator, and brown-out reset (BOR) circuitry for robust field deployment.
The PIC16LF819 architecture combines a high-performance RISC CPU with on-chip Flash and data EEPROM, allowing in-application reprogramming without UV erasure. The Harvard-style separate program and data buses deliver deterministic single-cycle instruction execution except for program branches, which take two cycles. The integrated 10-bit ADC with multiple input channels and reference options supports sensor digitization in mixed-signal subsystems, while Capture/Compare/PWM modules enable motor and lighting control.
Typical applications include battery-powered sensor nodes, low-cost remote controls, small appliance control boards, industrial telemetry edge nodes, and consumer devices requiring low standby current with periodic wake-and-measure cycles. The 28-QFN package suits space-constrained designs such as wearables, portable instruments, and dense IoT endpoint PCBs.
When designing with the PIC16LF819, ensure that the MCLR pull-up, decoupling (typically 100 nF plus bulk 10 uF near VDD), and ICSP programming header layout follow the manufacturer's reference schematic. Always verify ADC reference and acquisition timing against actual sensor source impedance to avoid sampling errors in production firmware.
This page consolidates authorized distributor pricing, drop-in package-compatible alternates, and field-verified design notes in one place, supplementing the Microchip datasheet with real-world engineering context not found in the original PDF.
جایگزین‌های drop-in برای PIC16LF819-I/MLTSL — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC16LF819-I/MLTSL (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Core Architecture, Package, Internal Oscillator, ADC, Operating Temperature.
PIC16LF819T-I/MLTSL
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16LF819/MLTSL
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16F819-I/MLTSL
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16F819-I/ML
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LF819-I/MLTSL حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Family | PIC16F |
| Instruction Set | 35 single-word instructions |
| Max CPU Frequency | 10 MHz |
| Instruction Cycle Time | 200 ns at 20 MHz (10 MHz CPU) |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| RAM | 256 bytes |
| EEPROM | 256 bytes |
| I/O Pins | 16 |
| ADC | 10-bit, multi-channel |
| PWM Channels | Yes (Capture/Compare/PWM) |
| Operating Voltage Range | 2.0 V to 5.5 V |
| محدوده دمای کاری | -40C to +85C (Industrial) |
| بسته‌بندی | 28-pin QFN (6x6 mm) |
| نوع نصب | Surface Mount |
| Power Technology | nanoWatt (low-power modes) |
| Oscillator | Internal + external options |
| وضعیت RoHS | Compliant |
پیکربندی پین PIC16LF819-I/MLTSL
| پین 1 | RA7/OSC1/CLKIN — GPIO RA7 / Oscillator input / External clock input |
| پین 2 | RA6/OSC2/CLKOUT — GPIO RA6 / Oscillator output / Clock output |
| پین 3 | RA5/MCLR/VPP — GPIO RA5 / Master Clear reset / Programming voltage |
| پین 4 | RA4/AN4/T0CKI — GPIO RA4 / Analog input 4 / Timer0 clock input |
| پین 5 | RA3/AN3/VREF+ — GPIO RA3 / Analog input 3 / ADC positive reference |
| پین 6 | RA2/AN2/VREF- — GPIO RA2 / Analog input 2 / ADC negative reference |
| پین 7 | RA1/AN1 — GPIO RA1 / Analog input 1 |
| پین 8 | RA0/AN0 — GPIO RA0 / Analog input 0 |
| پین 9 | VSS — Ground reference |
| پین 10 | VDD — Positive power supply |
| پین 11 | RB7/PGD — GPIO RB7 / ICSP data |
| پین 12 | RB6/PGC — GPIO RB6 / ICSP clock |
| پین 13 | RB5 — GPIO RB5 |
| پین 14 | RB4 — GPIO RB4 |
| پین 15 | RB3/CCP1 — GPIO RB3 / Capture Compare PWM 1 |
| پین 16 | RB2 — GPIO RB2 |
| پین 17 | RB1 — GPIO RB1 |
| پین 18 | RB0/INT — GPIO RB0 / External interrupt |
| پین 19 | RC7 — GPIO RC7 |
| پین 20 | RC6 — GPIO RC6 |
| پین 21 | RC5 — GPIO RC5 |
| پین 22 | RC4 — GPIO RC4 |
| پین 23 | RC3 — GPIO RC3 |
| پین 24 | RC2 — GPIO RC2 |
| پین 25 | RC1 — GPIO RC1 |
| پین 26 | RC0 — GPIO RC0 |
| پین 27 | VSS — Ground (exposed pad) |
| پین 28 | VDD — Positive power supply (exposed pad) |
کاربردهای معمول
PIC16LF819-I/MLTSL مناسب است برای 6 کاربردs: Battery-Powered IoT Sensor Nodes, Remote Control and Consumer Devices, Industrial Telemetry Edge Nodes, Small Appliance Control Boards, Automotive Interior Accessories, Portable Medical Monitoring Devices.
Battery-Powered IoT Sensor Nodes
The PIC16LF819-I/MLTSL is well-suited for battery-powered IoT sensor endpoints where standby current dominates the energy budget. Its nanoWatt technology provides sleep modes with microamp-level quiescent current, and the 2.0 V minimum VDD enables single-cell alkaline or lithium battery operation. The 10-bit ADC handles analog sensor channels (temperature, light, voltage monitoring), while 16 GPIO lines manage digital sensors, status LEDs, and wake-up interrupts. In typical duty-cycled operation (measure every 10 seconds, transmit every 60 seconds), the MCU's 10 MHz CPU burst handles protocol stack processing without exceeding the application's power budget. The 28-QFN (6x6 mm) package allows placement in compact sensor enclosures alongside coin-cell batteries.
پیشنهادی
Remote Control and Consumer Devices
The PIC16LF819-I/MLTSL fits cost-sensitive consumer remote control designs where 3.5 KB Flash suffices for IR protocol encoding (RC5, NEC, SIRC) and key-scanning routines. The 16 GPIO lines support 4x4 matrix keypads or capacitive touch buttons, while the PWM module drives IR LED modulation at carrier frequencies (36-40 kHz typical). The 10-bit ADC handles battery voltage monitoring for low-battery alerts. Operating voltage down to 2.0 V supports two-cell alkaline battery packs, extending device lifetime. The 28-QFN package enables ultra-thin remote enclosures under 8 mm height, matching modern TV and streaming-device accessory form factors.
پیشنهادی
Industrial Telemetry Edge Nodes
The PIC16LF819-I/MLTSL serves industrial telemetry edge nodes requiring -40C to +85C industrial temperature operation and robust EMC performance. The integrated 10-bit ADC with multiple input channels digitizes 4-20 mA loop signals or 0-10 V analog sensor outputs after external signal conditioning. Watchdog timer and brown-out reset (BOR) ensure field reliability in electrically noisy factory environments. The PIC16F family's deterministic interrupt latency and single-cycle instruction execution support real-time control loops. RS-485 or CAN communication requires an external transceiver; the MCU's UART peripheral handles the protocol stack. The 28-QFN package suits DIN-rail mounted terminal block assemblies.
پیشنهادی
Small Appliance Control Boards
The PIC16LF819-I/MLTSL integrates well into small appliance control boards for coffee makers, fans, humidifiers, and kitchen gadgets. The Capture/Compare/PWM module drives motor speed control or heating element regulation with hardware-generated waveforms, freeing CPU cycles for user interface logic. The 16 GPIO lines handle button inputs, rotary encoder feedback, LED indicators, and relay outputs. Flash self-programming allows field firmware updates via UART bootloader, supporting product family variants from a single PCB design. The wide 2.0-5.5 V operating range accommodates both USB-powered and mains-rectified power supply topologies common in small appliances.
پیشنهادی
Automotive Interior Accessories
The PIC16LF819-I/MLTSL can be deployed in non-safety automotive interior accessories such as ambient lighting controllers, USB charging port logic, and seat comfort module interfaces. The industrial temperature grade (-40C to +85C) covers cabin environments, though under-hood applications would require AEC-Q100 qualification. The PWM module generates precise LED dimming curves for ambient lighting, while the ADC monitors current sensing for USB charging port protection. The 28-QFN package enables placement behind dashboard panels and center console assemblies where space is constrained. For safety-critical functions, designers should select AEC-Q100 qualified PIC16F variants instead.
پیشنهادی
Portable Medical Monitoring Devices
The PIC16LF819-I/MLTSL supports portable medical monitoring peripherals such as pulse oximeter front-ends, digital thermometer base units, and nebulizer timers. The 10-bit ADC with programmable reference voltage digitizes thermistor or photodiode signals from sensor front-ends. Low-power sleep modes extend battery life in intermittent-use devices like home blood pressure monitors. The deterministic RISC architecture supports predictable response times for user button presses and alarm thresholds. Note that FDA-regulated medical devices require additional design controls and traceability beyond standard MCU qualification; this part suits accessory and wellness products rather than life-support equipment.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC16LF819-I/MLTSL — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC16LF819T-I/MLTSL | PIC16LF819/MLTSL | PIC16F819-I/MLTSL | PIC16F819-I/ML | PIC16LF819-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN (6x6) | 28-QFN (6x6) - same | 28-QFN (6x6) - same | 28-QFN (6x6) - same | 28-QFN (6x6) - same | 28-SOIC - different |
| Max CPU Frequency | 10 MHz | 10 MHz | 10 MHz | 20 MHz | 20 MHz | 10 MHz |
| Flash Memory | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB |
| RAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Operating Voltage | 2.0-5.5 V | 2.0-5.5 V | 2.0-5.5 V | 2.0-5.5 V | 2.0-5.5 V | 2.0-5.5 V |
| Temperature Grade | Industrial (-40 to +85C) | Industrial (-40 to +85C) | Commercial (0 to +70C) | Industrial (-40 to +85C) | Industrial (-40 to +85C) | Industrial (-40 to +85C) |
| I/O Pins | 16 | 16 | 16 | 16 | 16 | 16 |
تفاوت‌های کلیدی
- Extended low-voltage operation to 2.0 V (در مقابلPIC16F819-I/MLTSL)
- nanoWatt low-power technology (در مقابلPIC16LF818-I/ML)
- Compact 28-QFN (6x6 mm) package (در مقابلPIC16LF877-I/P)
یادداشت‌های طراحی
Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the VDD pin (pin 10) and the exposed pad. Add a bulk 10 uF tantalum or ceramic capacitor near the MCU for switching transient suppression. For battery-powered designs, the PIC16LF819's nanoWatt sleep modes draw less than 1 uA typical, but verify the exact figure against the datasheet electrical characteristics table for your specific VDD and temperature conditions.
The 28-QFN package requires a properly designed land pattern with thermal vias under the exposed pad for heat dissipation. Recommended via count is 9-12 thermal vias (0.3 mm drill, 0.5 mm pad) arranged in a 3x3 grid under the die. The MCLR pin (pin 3) needs a 10 kohm pull-up resistor to VDD for normal operation; omit this only if using the internal MCLR disable configuration.
Route the ICSP programming signals PGD (pin 11) and PGC (pin 12) directly to a programming header with minimal stubs. Keep analog signals (AN0-AN4) separated from digital switching traces to reduce ADC noise coupling. Place the external crystal (if used) within 5 mm of OSC1/OSC2 pins with a grounded guard ring for EMI-sensitive applications.
Do not exceed 5.5 V on any pin; the absolute maximum VDD is 5.5 V per the datasheet. When using the ADC, ensure the acquisition time is sufficient for your source impedance - high-impedance sensors (>10 kohm) require longer acquisition times or a buffer amplifier. The CONFIG register must be programmed correctly; an unconfigured device will not execute user code.
اطلاعات انطباق
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications select AEC-Q100 qualified PIC variants. Industrial temperature grade (-40C to +85C) per 'I' suffix.
