PIC16LF1518T-I/SO - 8-bit 20MHz 28KB Flash MCU 28-SOIC | Microchip
MPN: PIC16LF1518T-I/SO ✓ فعالPIC16LF1518T-I/SO نمای کلی
A microcontroller (MCU) is an integrated circuit combining a CPU core, program memory, data memory, and peripherals such as ADC, timers, and communication interfaces on a single die. The PIC16 architecture belongs to the broader hierarchy of 8-bit microcontrollers -> microcontrollers -> microprocessors & controllers -> integrated circuits -> semiconductors, and is one of the longest-lived 8-bit families in the industry. The "LF" prefix designates the low-voltage, low-power (XLP™) variant, while the "T" suffix indicates Tape & Reel packaging and the "-I" industrial temperature grade.
Key features include nanoWatt XLP™ technology for deep sleep currents in the sub-microamp range, a 10-bit Analog-to-Digital Converter (ADC), multiple Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART) and MSSP (I2C/SPI) interfaces, PWM modules, and a wide portfolio of timers. The 28-SOIC footprint also exposes additional I/O versus 14- or 20-pin SOIC parts in the same family, while remaining hand-solderable for prototypes.
Typical applications include low-power sensor nodes, battery-powered instrumentation, consumer white goods, HVAC controls, LED lighting controllers, and small industrial controllers. The 28KB Flash supports modular, field-upgradable firmware while keeping ample headroom for application code and a small RTOS-style loop.
When designing with this part, place a 0.1uF decoupling capacitor within 5 mm of each VDD pin and consider the unused-pin recommendations in the datasheet. Programming is supported through the ICSP™ interface using MPLAB X IDE and tools such as the MPLAB Snap or PICkit 4.
This page synthesizes distributor pricing, same-package Microchip drop-in alternatives, and practical design notes that complement the manufacturer datasheet for the PIC16LF1518T-I/SO.
جایگزین‌های drop-in برای PIC16LF1518T-I/SO — 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 PIC16LF1518T-I/SO (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در ADC, Package, Core Architecture, I/O Pins, Timers.
PIC16LF1518-I/SO
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16LF1518-I/ML
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LF1519-I/SO
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16LF1517-I/SO
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16F1518T-I/SO
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LF1516T-I/SO
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LF1518-E/SS
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LF1518T-I/SO حداکثر مقادیر مجاز و مشخصات الکتریکی
| Product Family | PIC16 (PIC® XLP™ 16F) |
| Core | 8-bit PIC16 |
| Program Memory Size | 28 KB (16K x 14 words) Flash |
| RAM Size | 1024 bytes |
| Maximum CPU Frequency | 20 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| ADC | 10-bit |
| بسته‌بندی | 28-SOIC (0.295", 7.50 mm width) |
| نوع نصب | Surface Mount |
| دمای کاری | -40 C to +85 C (Industrial, "I") |
| Low-Power Technology | nanoWatt XLP™ |
| Communication Interfaces | EUSART, MSSP (I2C/SPI) |
| Programming Interface | ICSP™ (In-Circuit Serial Programming) |
| سطح MSL | MSL 1 (per JEDEC J-STD-020, generally for SOIC) |
| وضعیت RoHS | Compliant |
| Packaging Form | Tape & Reel ("T" suffix) |
پیکربندی پین PIC16LF1518T-I/SO
| پین 1 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / Positive voltage reference |
| پین 2 | RA4 — PORTA bit 4 |
| پین 3 | RA5/MCLR/VPP — PORTA bit 5 / Master Clear (reset) / Programming voltage |
| پین 4 | RA6/OSC2/CLKOUT — PORTA bit 6 / Crystal oscillator output / Clock out |
| پین 5 | RA7/OSC1/CLKIN — PORTA bit 7 / Crystal oscillator input / Clock in |
| پین 6 | RC0/SOSC/SCLKI — PORTC bit 0 / Secondary oscillator / External clock input |
| پین 7 | RC1/CCP2 — PORTC bit 1 / Capture/Compare/PWM 2 |
| پین 8 | RC2/P1A/CCP1 — PORTC bit 2 / PWM output / CCP1 |
| پین 9 | RC3/P1B/SCL — PORTC bit 3 / PWM output / I2C clock |
| پین 10 | RC4/P1C/SDA — PORTC bit 4 / PWM output / I2C data |
| پین 11 | RC5/P1D/SDO — PORTC bit 5 / PWM output / SPI data out |
| پین 12 | RC6/TX/CK/SDI — PORTC bit 6 / EUSART TX / SPI clock / SPI data in |
| پین 13 | RC7/RX/DT — PORTC bit 7 / EUSART RX |
| پین 14 | VSS — Ground reference |
| پین 15 | VDD — Positive supply voltage (1.8V to 3.6V) |
| پین 16 | RB7/PGD — PORTB bit 7 / ICSP data |
| پین 17 | RB6/PGC — PORTB bit 6 / ICSP clock |
| پین 18 | RB5/AN13 — PORTB bit 5 / Analog input 13 |
| پین 19 | RB4/AN11 — PORTB bit 4 / Analog input 11 |
| پین 20 | RB3/AN9/CCP3 — PORTB bit 3 / Analog input 9 / CCP3 |
| پین 21 | RB2/AN8 — PORTB bit 2 / Analog input 8 |
| پین 22 | RB1/AN7 — PORTB bit 1 / Analog input 7 |
| پین 23 | RB0/AN6/INT — PORTB bit 0 / Analog input 6 / External interrupt |
| پین 24 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| پین 25 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| پین 26 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| پین 27 | VSS — Ground reference (second VSS pin) |
| پین 28 | VDD — Positive supply voltage (1.8V to 3.6V, second VDD pin) |
کاربردهای معمول
PIC16LF1518T-I/SO مناسب است برای 7 کاربردs: Battery-Powered Sensor Nodes, Consumer White Goods Control, LED Lighting Controllers, HVAC and Environmental Controls, Industrial Sensor and Actuator Nodes, Small Appliance and Toy Electronics, Smart Energy Meters and Sub-Metering.
Battery-Powered Sensor Nodes
The PIC16LF1518T-I/SO is well suited to battery-powered sensor nodes because it operates from 1.8V to 3.6V and integrates Microchip's nanoWatt XLP™ low-power technology, enabling deep-sleep currents in the sub-microamp range. Its 28KB Flash (16K x 14 words) comfortably fits typical sensor-fusion or LoRaWAN/BLE host stacks, while 1024 bytes of RAM holds short measurement buffers. The 10-bit ADC reads thermistor, photodiode, or battery-monitor signals directly, removing an external ADC. The 28-SOIC package is hand-solderable for prototypes yet still compact for end products. Pairing this MCU with a 2x AA alkaline or single-cell Li-ion supply plus an LDO lets designers hit multi-year battery life targets without an external RTC.
پیشنهادی
Consumer White Goods Control
The PIC16LF1518T-I/SO fits consumer white-goods control boards (coffee makers, washing machines, dishwashers, microwave ovens) where 28KB Flash is enough for keypad scanning, display multiplexing, motor timing, and safety interlocks. Its EUSART and MSSP (I2C/SPI) interfaces drive character LCDs, capacitive touch front panels, or external EEPROM/FRAM. The 1.8-3.6V range with industrial -40C to +85C tolerance survives the warm enclosures of motor-driven appliances. A 20MHz CPU clock executes PID loops for low-cost BLDC or universal-motor control in software when paired with an external gate driver. The 28-SOIC footprint eases PCB layout and rework versus smaller QFN packages in high-volume manufacturing.
پیشنهادی
LED Lighting Controllers
The PIC16LF1518T-I/SO is a strong choice for LED lighting controllers driving constant-current strings via PWM, where the PIC16's enhanced CCP/ECCP modules deliver multiple PWM channels at adjustable frequencies. The 10-bit ADC monitors supply voltage, LED current sense, and thermal feedback for closed-loop brightness control, while the 1024 bytes of RAM handles smoothing and fade tables. Operating from 1.8-3.6V, the MCU can be powered from a small auxiliary winding or a low-Iq LDO. The 28-SOIC package is friendly to the thermal and mechanical constraints of lighting PCBs. XLP™ sleep modes drop standby consumption below 100nA for off-state standby energy compliance.
پیشنهادی
HVAC and Environmental Controls
The PIC16LF1518T-I/SO suits HVAC and environmental controllers that read temperature, humidity, and pressure sensors over I2C or SPI, drive triac/MOSFET outputs for fans and dampers, and present a UI on segment LCDs or character displays. Its 28KB Flash stores lookup tables for setpoint scheduling, while 1024 bytes of RAM buffers sensor logs. The industrial -40C to +85C range covers equipment-room and outdoor-residential environments. The 10-bit ADC provides adequate resolution for thermistor/NTC10K and CT current-sensing channels. A 28-SOIC footprint survives the long thermal-cycling environments typical of HVAC control boards.
پیشنهادی
Industrial Sensor and Actuator Nodes
For industrial sensor and actuator nodes on 24V factory buses, the PIC16LF1518T-I/SO interfaces to 4-20mA loops, RS-485 transceivers, and digital isolators over EUSART and MSSP. Its 1.8-3.6V core must be supplied from a wide-Vin DC-DC or isolated LDO, but the MCU's 20MHz throughput handles Modbus RTU framing and basic filtering in firmware. The 28KB Flash hosts a Modbus stack plus application logic, while 1024 bytes RAM supports circular buffers. The -40C to +85C industrial grade and 28-SOIC footprint ease integration onto legacy industrial PCBs. nanoWatt XLP™ sleep modes reduce idle consumption between sensor polls.
پیشنهادی
Small Appliance and Toy Electronics
The PIC16LF1518T-I/SO fits small appliance and toy electronics that need a friendly 8-bit core, modest Flash for sound/light sequencing, and a handful of ADC channels for capacitive touch or motor-current feedback. The 28-SOIC package is forgiving for hand assembly and rework in low-volume toy lines. Its 1.8-3.6V supply works directly from 2x AA alkaline cells, while XLP™ sleep modes keep shelf life long. EUSART and MSSP interfaces drive addressable RGB LED strips, audio DACs, or IR transceivers for remote-control toys. The 10-bit ADC is sufficient for touch-proximity sensing and battery monitoring.
پیشنهادی
Smart Energy Meters and Sub-Metering
The PIC16LF1518T-I/SO serves as the MCU in single-phase sub-metering and energy-monitoring modules, where its 10-bit ADC samples current-transformer and shunt signals at the line frequency, while EUSART outputs Modbus or DLMS/COSEM frames to a concentrator. The 28KB Flash holds calibration tables and basic communication stacks; 1024 bytes RAM buffers instantaneous-power accumulators. The 1.8-3.6V core is fed from a low-Iq LDO tied to the line-side auxiliary supply. The 28-SOIC footprint simplifies the mixed-signal PCB layout and keeps analog and digital grounds cleanly separated.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC16LF1518T-I/SO — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC16LF1518-I/SO | PIC16LF1519-I/SO | PIC16LF1517-I/SO | PIC16F1518T-I/SO | PIC16LF1516T-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (0.295", 7.50 mm) | 28-SOIC (0.295", 7.50 mm) - same | 28-SOIC (0.295", 7.50 mm) - same | 28-SOIC (0.295", 7.50 mm) - same | 28-SOIC (0.295", 7.50 mm) - same | 28-SOIC (0.295", 7.50 mm) - same |
| Program Memory | 28 KB Flash | 28 KB Flash | 32 KB Flash | 14 KB Flash | 28 KB Flash | 14 KB Flash |
| RAM | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 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 |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
| Low-Power Technology | nanoWatt XLP™ | nanoWatt XLP™ | nanoWatt XLP™ | nanoWatt XLP™ | Standard (no LF/XLP) | nanoWatt XLP™ |
| Packaging Form | Tape & Reel | Tube | Tube | Tube | Tape & Reel | Tape & Reel |
تفاوت‌های کلیدی
- Lowest-voltage operation in the PIC16F151x family (در مقابلPIC16F1518T-I/SO)
- NanoWatt XLP™ low-power technology integrated (در مقابلPIC16F1518T-I/SO)
- 28KB Flash vs smaller family members (در مقابلPIC16LF1517-I/SO)
- 28-pin SOIC vs QFN package flexibility (در مقابلPIC16LF1518-I/ML)
یادداشت‌های طراحی
Place a 0.1uF decoupling capacitor within 5 mm of each VDD pin (pins 15 and 28 on the 28-SOIC) and a bulk 1uF-10uF capacitor on the same rail. For battery designs, ensure the brown-out-reset (BOR) trip is configured above the minimum 1.8V supply to avoid undefined operation. The XLP™ Sleep mode can drop Iq below 100nA, so verify the chosen LDO has a quiescent current below the MCU sleep Iq if Sleep is the dominant mode.
Keep analog traces (AN0-AN13, VREF+) short and away from switching nodes such as PWM outputs (RC2/RC3/RC4/RC5 or P1A-P1D). Use a single-point ground or split analog/digital ground with a single bridge under the MCU's VSS pins. The 28-SOIC (0.295"/7.50 mm) footprint accepts either hand-soldering or standard reflow profiles; respect the MSL 1 floor-life requirements if reusing parts from opened bags.
Do not exceed 3.6V on VDD - the LF variant is permanently damaged above its absolute maximum. If migrating from the PIC16F1518 to the PIC16LF1518, retune the BOR and oscillator settings for the new voltage range. The MCLR pin (pin 5 / RA5) must have a pull-up if not used; leaving it floating can cause spurious resets. Finally, ICSP™ programming requires pin 16 (PGD) and pin 17 (PGC) to be free of strongly-loaded circuits during in-circuit programming.
اطلاعات انطباق
Microchip PIC16LF1518T-I/SO is RoHS compliant and lead-free per the Microchip product page. Not AEC-Q100 qualified; this is an industrial-grade MCU. For automotive applications use the AEC-Q100-qualified PIC16F1518-E/SOQ variants or similar.
