PIC16LF819-I/MLTSL - 8-bit MCU, 10MHz, 3.5KB Flash, 28-QFN | Microchip
부품 번호: PIC16LF819-I/MLTSL ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.66 | $26.60 |
| 100 | $2.36 | $236.00 |
| 500 | $2.13 | $1,065.00 |
| 1,000 | $1.89 | $1,890.00 |
PIC16LF819-I/MLTSL 개요
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.
드롭인 대체품: PIC16LF819-I/MLTSL — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16LF819-I/MLTSL (동일 폼 팩터 및 풋프린트) — 차이점: Core Architecture, Package, Internal Oscillator, ADC, Operating Temperature.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16LF819T-I/MLTSL
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16LF819/MLTSL
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16F819-I/MLTSL
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16F819-I/ML
✅ 드롭인✓ 재고 있음
$1.92 / 개
데이터시트 보기 →PIC16LF819-I/MLTSL 최대 정격 & 전기적 특성
| 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 |
| 동작 온도 범위 | -40C to +85C (Industrial) |
| 패키지 | 28-pin QFN (6x6 mm) |
| 실장 유형 | Surface Mount |
| Power Technology | nanoWatt (low-power modes) |
| Oscillator | Internal + external options |
| RoHS 상태 | Compliant |
PIC16LF819-I/MLTSL 핀 구성
| 핀 1 | RA7/OSC1/CLKIN — GPIO RA7 / Oscillator input / External clock input |
| 핀 2 | RA6/OSC2/CLKOUT — GPIO RA6 / Oscillator output / Clock output |
| 핀 3 | RA5/MCLR/VPP — GPIO RA5 / Master Clear reset / Programming voltage |
| 핀 4 | RA4/AN4/T0CKI — GPIO RA4 / Analog input 4 / Timer0 clock input |
| 핀 5 | RA3/AN3/VREF+ — GPIO RA3 / Analog input 3 / ADC positive reference |
| 핀 6 | RA2/AN2/VREF- — GPIO RA2 / Analog input 2 / ADC negative reference |
| 핀 7 | RA1/AN1 — GPIO RA1 / Analog input 1 |
| 핀 8 | RA0/AN0 — GPIO RA0 / Analog input 0 |
| 핀 9 | VSS — Ground reference |
| 핀 10 | VDD — Positive power supply |
| 핀 11 | RB7/PGD — GPIO RB7 / ICSP data |
| 핀 12 | RB6/PGC — GPIO RB6 / ICSP clock |
| 핀 13 | RB5 — GPIO RB5 |
| 핀 14 | RB4 — GPIO RB4 |
| 핀 15 | RB3/CCP1 — GPIO RB3 / Capture Compare PWM 1 |
| 핀 16 | RB2 — GPIO RB2 |
| 핀 17 | RB1 — GPIO RB1 |
| 핀 18 | RB0/INT — GPIO RB0 / External interrupt |
| 핀 19 | RC7 — GPIO RC7 |
| 핀 20 | RC6 — GPIO RC6 |
| 핀 21 | RC5 — GPIO RC5 |
| 핀 22 | RC4 — GPIO RC4 |
| 핀 23 | RC3 — GPIO RC3 |
| 핀 24 | RC2 — GPIO RC2 |
| 핀 25 | RC1 — GPIO RC1 |
| 핀 26 | RC0 — GPIO RC0 |
| 핀 27 | VSS — Ground (exposed pad) |
| 핀 28 | VDD — Positive power supply (exposed pad) |
일반적인 애플리케이션
PIC16LF819-I/MLTSL 적합 용도: 6 애플리케이션s: 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.
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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.
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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.
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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.
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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.
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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.
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추천 제품 요약
엔지니어링 참조 데이터: PIC16LF819-I/MLTSL — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 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 |
주요 차별점
- Extended low-voltage operation to 2.0 V (vs PIC16F819-I/MLTSL)
- nanoWatt low-power technology (vs PIC16LF818-I/ML)
- Compact 28-QFN (6x6 mm) package (vs PIC16LF877-I/P)
설계 노트
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.
규정 준수 정보
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.
