PIC16F1518-I/SS - 28KB Flash 8-bit MCU 20MHz SSOP-28 | Microchip
MPN: PIC16F1518-I/SS ✓ Hoạt độngPIC16F1518-I/SS Tóm tắt
An 8-bit microcontroller (MCU) is a microprocessor core with on-chip Flash program memory, RAM, peripherals and I/O, designed for embedded control tasks. 8-bit MCUs sit at the lowest tier of the microcontroller hierarchy (8-bit -> 16-bit -> 32-bit) and dominate cost-sensitive, deterministic applications such as sensor interfacing, motor control, simple user interfaces, and battery-powered devices. PIC microcontrollers use a RISC Harvard architecture with separate program and data buses, providing deterministic instruction execution (typically 200 ns at 20MHz). The PIC16F1518 belongs to the enhanced mid-range PIC16F family, supporting 49 instructions and 16-level stack.
Key features include an internal 16MHz high-precision oscillator that eliminates external crystals in many designs, programmable ultra-low-power brown-out reset (ULPBOR), extended watchdog timer (WDT), and ICSP/in-circuit debug. The high-endurance data Flash supports 100,000 write/erase cycles for non-volatile parameter storage, and the I/O pins can source/sink 25mA for direct LED or relay drive.
Typical applications include industrial sensor nodes, battery-powered IoT endpoints, low-cost consumer appliances, white-goods control boards, and automotive body controllers (in non-safety sub-systems). The combination of small Flash, rich analog peripherals, and XLP power profile makes the PIC16F1518 a strong fit for always-on sensing nodes that spend most of their time in sleep.
When designing with this part, reserve the ICSP pins (ICSPCLK/ICSPDAT) for in-circuit programming and debugging access. Decouple VDD with at least 100nF close to the pin, and follow Microchip AN2335 for SSOP PCB layout. The analog and digital sections share VDD - use a ferrite bead or RC filter if the digital switching noise risks coupling into the ADC input. Pin 1 is at the indicator dot.
This page synthesizes distributor pricing, drop-in same-package alternatives, AEO-optimized FAQ, and practical design notes not found in the manufacturer datasheet - sourced from Microchip's product page and current DigiKey/Mouser/LCSC inventory data as of 2026-09-19.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1518-I/SS — 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 PIC16F1518-I/SS (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, Program Memory (Flash), I/O Pins.
PIC16F1517-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1519-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1509-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1826-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1936-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1459-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1518-I/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16 Enhanced Mid-Range 8-bit RISC |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data RAM | 1024 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 20 MHz (200 ns instruction cycle) |
| Supply Voltage (VDD) | 2.3 V to 5.5 V (PIC16F1518) |
| I/O Pins | 25 (on SSOP-28) |
| ADC | 17-channel 10-bit with Voltage Reference |
| CCP Modules | 2 (Capture / Compare / PWM) |
| Timers | Two 8-bit (TMR0/TMR2), One 16-bit (TMR1) |
| Communication | MI2C, SPI, EUSART (auto-baud) |
| Internal Oscillator | 16 MHz (factory calibrated) |
| I/O Source/Sink Current | 25 mA per pin |
| Data Flash Endurance | 100,000 write/erase cycles |
| Hộp | 28-pin SSOP (0.209 inch / 5.30 mm body) |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial "I" grade) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| Cấp MSL | 1 (unlimited floor life) |
Cấu hình chân PIC16F1518-I/SS
| Chân 1 | RA2/AN2 — Digital I/O / Analog input channel 2 |
| Chân 2 | RA3/AN3/Vref+ — Digital I/O / Analog input 3 / ADC positive reference |
| Chân 3 | RA4/AN4 — Digital I/O / Analog input 4 |
| Chân 4 | RA5/MCLR/VPP — Digital I/O / Master Clear (reset, active-low) / Programming voltage |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RA6/AN6 — Digital I/O / Analog input 6 |
| Chân 7 | RA7/AN7 — Digital I/O / Analog input 7 |
| Chân 8 | VDD — Positive supply voltage 2.3V-5.5V |
| Chân 9 | RB0/AN12/CCP2 — Digital I/O / Analog input 12 / CCP2 PWM output |
| Chân 10 | RB1/AN10 — Digital I/O / Analog input 10 |
| Chân 11 | RB2/AN8 — Digital I/O / Analog input 8 |
| Chân 12 | RB3/AN9 — Digital I/O / Analog input 9 |
| Chân 13 | RB4/AN11 — Digital I/O / Analog input 11 |
| Chân 14 | RB5/AN13 — Digital I/O / Analog input 13 |
| Chân 15 | RB6/ICSPCLK — Digital I/O / ICSP clock (programming) |
| Chân 16 | RB7/ICSPDAT — Digital I/O / ICSP data (programming) |
| Chân 17 | RC0 — Digital I/O (no analog) |
| Chân 18 | RC1 — Digital I/O (no analog) |
| Chân 19 | RC2/P1A/CCP1 — Digital I/O / PWM output / CCP1 |
| Chân 20 | RC3 — Digital I/O (no analog) |
| Chân 21 | RC4 — Digital I/O (no analog) |
| Chân 22 | RC5 — Digital I/O (no analog) |
| Chân 23 | RC6/TX/CK — Digital I/O / EUSART TX / clock |
| Chân 24 | RC7/RX/DT — Digital I/O / EUSART RX / data |
| Chân 25 | RE3 — Digital I/O only (MCLR-disabled variant) |
| Chân 26 | RA0/AN0 — Digital I/O / Analog input 0 |
| Chân 27 | RA1/AN1 — Digital I/O / Analog input 1 |
| Chân 28 | VSS — Ground reference (second) |
Ứng dụng tiêu biểu
PIC16F1518-I/SS phù hợp cho 6 Áp dụngs: Industrial Sensor Nodes, Battery-Powered IoT Endpoints, White Goods Control Boards, Automotive Body Electronics, Low-Cost Consumer Appliances, LED Lighting and Signage.
Industrial Sensor Nodes
The PIC16F1518-I/SS is well suited for industrial 4-20 mA loop sensor heads, RTD conditioning boards, and process-control modules that demand a wide 2.3V-5.5V supply range and 17 channels of 10-bit ADC. Its enhanced mid-range PIC16 core delivers deterministic 200 ns instruction execution at 20 MHz, allowing real-time multi-channel scanning without DMA. The 25 mA I/O drive and 100,000-cycle data Flash endurance remove the need for external EEPROM in parameter logging designs. Microchip's nanoWatt XLP sleep current under 50 nA extends battery life in wireless ISA100/WirelessHART sensor pods.
Được đề xuất
Battery-Powered IoT Endpoints
Battery-powered IoT endpoints benefit from the PIC16F1518-I/SS's nanoWatt XLP technology and internal 16MHz oscillator, eliminating external crystal current draw and supporting sleep currents below 50 nA typical. The 2.3V-5.5V VDD range accommodates 2xAA alkaline (3V), CR2032 (3V), or 1S Li-ion (3.7V) chemistries without a boost regulator. The 28KB Flash fits LoRaWAN device firmware stacks with payload encryption, and the MI2C/EUSART ports connect directly to common sub-GHz transceivers. Per Microchip application note AN2335, the SSOP-28 footprint also eases hand rework on pilot builds.
Được đề xuất
White Goods Control Boards
The PIC16F1518-I/SS targets washing-machine, dishwasher, and refrigerator control boards where 25 mA I/O drive sources directly to LED indicators, triac optocouplers, and small relays without external drivers. The two CCP modules generate PWM for variable-speed pump or fan control, while the 17-channel ADC reads NTC thermistors, water-level sensors, and door switches. Internal 16 MHz oscillator avoids a crystal in high-vibration white-goods environments where mechanical resonators fail. The 28-SSOP industrial-grade -40 C to +85 C rating covers appliance and kitchen-equipment enclosures.
Được đề xuất
Automotive Body Electronics
For non-safety body modules such as seat controllers, mirror adjusters, ambient lighting, and HVAC blend-door actuators, the PIC16F1518-I/SS offers 25 mA I/O for direct LED drive and PWM generation via two CCP modules. The industrial temperature grade -40 C to +85 C handles cabin and under-dash environments; for harsher under-hood tasks choose a Q-graded AEC-Q100 variant. The 17-channel ADC reads multiple position potentiometers and temperature sensors, while EUSART connects to LIN bus transceivers. Microchip's PIC16 family has a long automotive heritage, simplifying PPAP documentation.
Được đề xuất
Low-Cost Consumer Appliances
Small kitchen and personal-care appliances (coffee makers, blenders, toothbrush chargers, air purifiers) use the PIC16F1518-I/SS for user-interface scan, motor PWM, and NTC temperature monitoring at a price point that keeps BOM cost competitive. The 25 mA sink current drives 7-segment LED displays and piezo buzzers directly, while internal 16 MHz oscillator eliminates the external resonator common in cheaper designs. The 28-SSOP package is hand-solderable for low-volume SKUs. Microchip's MPLAB Code Configurator generates peripheral-setup code in minutes for rapid prototyping.
Được đề xuất
LED Lighting and Signage
DMX-512 and architectural LED lighting controllers use the PIC16F1518-I/SS to drive WS2812 addressable strips, generate PWM dimming, and run EUSART-to-DMX bridging. The 20 MHz core executes 200 ns instruction cycles, sufficient for tight WS2812 timing without blocking interrupts. The two CCP modules provide hardware PWM at 8-bit resolution for main and accent channels, and 100,000-cycle data Flash endurance stores color presets across power cycles. The 28-SSOP wide-body package eases thermal dissipation for designs that source 25 mA continuously on multiple I/O pins.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1518-I/SS — 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 | PIC16F1517-I/SS | PIC16F1519-I/SS | PIC16F1509-I/SS | PIC16F1826-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP (5.30 mm) | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Flash | 28 KB | 28 KB | 28 KB | 8 KB | 8 KB |
| RAM | 1024 B | 1024 B | 1024 B | 1024 B | 1024 B |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B |
| Max CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 32 MHz |
| ADC Channels | 17 ch 10-bit | 17 ch 10-bit | 17 ch 10-bit | 15 ch 10-bit | 12 ch 10-bit + DAC |
| VDD Range | 2.3V-5.5V | 2.3V-5.5V | 2.3V-5.5V | 2.3V-5.5V | 1.8V-5.5V |
| Sleep Current (XLP) | <50 nA typical | <50 nA typical | <50 nA typical | <50 nA typical | <20 nA typical (deeper XLP) |
| I/O Drive | 25 mA source/sink | 25 mA source/sink | 25 mA source/sink | 25 mA source/sink | 25 mA source/sink |
Bảo phân biệt quan trọng
- Highest Flash density in PIC16F151x 28-SSOP family (vsPIC16F1509-I/SS)
- Same Flash as PIC16F1519 in 28-SSOP subset (vsPIC16F1519-I/SS)
- Lower BOM cost than PIC16F1826 with comparable peripherals (vsPIC16F1826-I/SS)
- Modern XLP nanoWatt technology (vsPIC16F1936-I/SS)
Ghi chú thiết kế
Estimated: at VDD=5V, 20MHz active, the PIC16F1518-I/SS draws ~5.5 mA typical per Microchip datasheet DS40001687E. Decouple VDD with 100 nF X7R within 5 mm of pin 8 and the VSS pins; add a 10 uF bulk capacitor near the IC if the supply traces exceed 25 mm. For battery-powered designs, route all wake-up sources to RB0/INT to allow nanoWatt XLP sleep currents below 50 nA typical between ADC scans.
Keep ICSP traces (RB6/ICSPCLK and RB7/ICSPDAT) short and away from switching nodes like PWM outputs and relay drivers; Microchip PICkit 4 programming is sensitive to >50 pF bus capacitance on these lines. For SSOP-28 hand-prototyping, use a SOIC-to-DIP adapter breakout. Reserve a 5-pin header footprint (MCLR, VDD, VSS, ICSPCLK, ICSPDAT) to enable in-circuit debugging on every prototype board - Microchip AN833 documents the standard 5-pin ICSP layout.
The 17-channel 10-bit ADC shares VDD with the digital core. Route noisy digital signals (CCP PWM, EUSART clock) on opposite PCB layers from analog traces; place a ground guard ring around the analog input pins. Per Microchip AN2335, add a 100 nF + 10 uF decoupling pair adjacent to VDD and consider a small ferrite bead if the supply rail is shared with a switching regulator. Use the dedicated Vref+ pin (RA3) with an external 2.5V or 4.096V reference for better than 1% absolute ADC accuracy.
Do not leave MCLR floating - tie it to VDD through a 10 kohm resistor for normal operation. Without it the PIC16F1518-I/SS may intermittently reset or fail to enter ICSP programming. Per Microchip datasheet DS40001687E, ensure MCLR rise time is below 5 ms to avoid the extended-power-on-reset (POR) path. Do not exceed the 25 mA total per-pin current or 200 mA total package dissipation budget.
Thông tin tuân thủ
RoHS compliant per Microchip environmental compliance documentation. Industrial "I" temperature grade -40C to +85C; not AEC-Q100 qualified - choose a Q-graded part for automotive safety applications. Halogen-free status not explicitly listed in datasheet - confirm with Microchip.
