PIC16LF1705-I/P - 8-Bit MCU, 14KB Flash, 32MHz | Microchip
Артикул: PIC16LF1705-I/P ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $1.85 | $1,85 |
| 10 | $1.65 | $16,50 |
| 100 | $1.45 | $145,00 |
| 500 | $1.28 | $640,00 |
| 1.000 | $1.1 | $1.100,00 |
PIC16LF1705-I/P Обзор
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (typically Flash), data RAM, peripherals (timers, ADC, communications), and I/O on one die. The PIC16 family uses Microchip's enhanced mid-range 8-bit RISC architecture and falls within the hierarchy: MCU -> 8-bit MCU -> PIC microcontroller -> PIC16 family -> PIC16F/LF170x series. The 'LF' suffix indicates a wide-voltage low-power variant supporting operation down to 1.8V, while 'F' variants typically start at 2.3V, making 'LF' parts preferred for battery-powered or energy-harvesting designs.
The PIC16LF1705 integrates Microchip's Intelligent Analog peripherals including on-chip operational amplifiers, a 10-bit ADC with Computation (ADC2), two 8-bit DACs, Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Complementary Output Generator (COG), Zero-Cross Detect (ZCD), and Peripheral Pin Select (PPS). It supports eXtreme Low Power (XLP) modes including Sleep currents down to approximately 20 nA typical and active currents near 35 uA/MHz at 1 MHz, enabling long battery life in sensor and IoT nodes.
Typical applications include low-power IoT sensor nodes, battery-powered measurement instruments, white goods and consumer control panels, LED lighting drivers using the COG and on-chip op-amps, general-purpose motor control, and any cost-sensitive 8-bit embedded control design that requires analog integration without an external op-amp or DAC. The through-hole PDIP-14 package simplifies prototyping, breadboarding, and field replacement versus surface-mount alternatives.
When designing with this part, place a 100 nF decoupling capacitor as close as possible to the VDD pin and consider a 10 uF bulk capacitor near the supply rail. Verify that your selected oscillator configuration matches the application speed and power budget, and consult the device datasheet for ADC acquisition-time calculations and FVR stabilization timing.
Аналоги без доработки для PIC16LF1705-I/P — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с PIC16LF1705-I/P (тот же форм-фактор и посадочное место) — отличается по Package, ADC, I/O Pins, DAC, Comparators.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC16F1705-I/P
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC16LF1704-I/SL
✅ Прямая замена✓ В наличии
$0.92 / шт.
Открыть даташит →PIC16LF1709-I/P
✅ Прямая замена✓ В наличии
$1.42 / шт.
Открыть даташит →PIC16LF1703-I/P
✅ Прямая замена✓ В наличии
$1.08 / шт.
Открыть даташит →PIC16LF1574-I/P
✅ Прямая замена✓ В наличии
$0.91 / шт.
Открыть даташит →PIC16LF1554-I/ML
✅ Прямая замена✓ В наличии
$0.84 / шт.
Открыть даташит →PIC16LF1705-I/P Максимальные параметры и электрические характеристики
| Core | PIC 8-bit enhanced mid-range RISC |
| Program Memory | 14 KB Flash (8K x 14) |
| Data RAM | 1 KB |
| Data EEPROM | 128 bytes |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V (LF variant) |
| I/O Pins | 11 (on 14-pin PDIP) |
| ADC | 10-bit, up to 8 channels |
| DAC | 2 x 8-bit DAC |
| On-chip Op-Amps | Yes (2x, integrated) |
| Корпус | 14-pin PDIP (0.300 inch / 7.62 mm) |
| Тип монтажа | Through-Hole |
| Диапазон рабочих температур | -40C to +85C (Industrial, 'I' suffix) |
| Low-Power Features | XLP - Sleep ~20 nA typ, Active ~35 uA/MHz |
| Статус RoHS | Compliant |
Конфигурация выводов PIC16LF1705-I/P
| Контакт 1 | RA3/MCLR/VPP — GPIO RA3 / Master Clear reset / programming voltage input |
| Контакт 2 | RA0 — GPIO RA0 / analog input |
| Контакт 3 | RA1 — GPIO RA1 / analog input |
| Контакт 4 | RA2 — GPIO RA2 / analog input |
| Контакт 5 | VSS — Ground reference |
| Контакт 6 | RC0 — GPIO RC0 |
| Контакт 7 | RC1 — GPIO RC1 |
| Контакт 8 | RC2 — GPIO RC2 |
| Контакт 9 | RC3 — GPIO RC3 |
| Контакт 10 | RC4 — GPIO RC4 |
| Контакт 11 | RC5 — GPIO RC5 |
| Контакт 12 | RA4 — GPIO RA4 |
| Контакт 13 | RA5 — GPIO RA5 |
| Контакт 14 | VDD — Positive supply voltage (1.8V to 3.6V) |
Типичное применение
PIC16LF1705-I/P подходит для 6 применениеs: Battery-Powered IoT Sensor Nodes, Consumer Appliance Control Panels, LED Lighting Drivers and Dimming, Portable Measurement Instruments, Industrial Sensor Signal Conditioning, Educational and Hobby Electronics.
Battery-Powered IoT Sensor Nodes
The PIC16LF1705-I/P is well suited for battery-powered IoT sensor nodes because it operates from 1.8V to 3.6V per the Microchip datasheet 40001770E and consumes roughly 20 nA in Sleep with XLP modes enabled. The 14KB Flash and 1KB SRAM support typical sensor-fusion and BLE-stack stub code, while the integrated 10-bit ADC and two on-chip op-amps condition sensor signals directly, eliminating external analog components. Estimated battery life at 1% duty-cycle wake is several years on a 2xAA pack. The 14-pin PDIP package simplifies breadboarding during prototype work, replacing surface-mount soldering with through-hole pin access.
Рекомендуется
Consumer Appliance Control Panels
The PIC16LF1705-I/P fits white-goods and consumer control panels because it offers Intelligent Analog integration with on-chip op-amps and DACs, Core Independent Peripherals (CLC, COG, Zero-Cross Detect) that handle triac drive and debounce in hardware, and 14KB Flash to hold keypad, display, and safety logic. Per Microchip datasheet 40001770E, the COG can generate complementary PWM for zero-cross triac firing, eliminating software timing jitter. The 1.8V-3.6V range supports 3.3V regulated rails; pair with an external 5V boost for LED or relay coils. Pin count and peripherals are typically right for microwave, dishwasher, and washer user-interface boards.
Рекомендуется
LED Lighting Drivers and Dimming
The PIC16LF1705-I/P is a strong fit for LED lighting drivers because the Complementary Output Generator (COG) peripheral produces hardware-timed complementary PWM signals that drive high-side/low-side FET pairs without CPU intervention, reducing EMI and software latency. Per Microchip datasheet 40001770E, the on-chip 8-bit DAC and two op-amps can regulate constant-current LED strings with closed-loop analog feedback. The 1.8V-3.6V operation suits battery-powered task lights, while the industrial -40C to +85C temperature range supports outdoor luminaires. Use the Zero-Cross Detect to synchronize dimming to AC mains at low cost.
Рекомендуется
Portable Measurement Instruments
The PIC16LF1705-I/P fits portable measurement instruments because of its 10-bit ADC with Computation (ADC2) that averages samples in hardware, the on-chip op-amps that condition low-level signals, and the XLP Sleep modes that drop current to roughly 20 nA between measurement cycles per the Microchip datasheet 40001770E. The 14KB Flash accommodates calibration tables, while 128 bytes of EEPROM retain user-setpoints across power cycles. The 14-pin PDIP is well suited for hand-held multimeters, clamp meters, and IR thermometers where field serviceability matters; engineers can swap the MCU without reflow rework.
Рекомендуется
Industrial Sensor Signal Conditioning
The PIC16LF1705-I/P is well suited for industrial sensor signal conditioning because its two on-chip op-amps can amplify thermocouple, RTD, or bridge signals directly, while the 10-bit ADC digitizes the conditioned signal and the Core Independent Peripherals (CLC) execute logic without CPU wakeups per the Microchip datasheet 40001770E. The 1.8V-3.6V range supports 3.3V industrial rails, and the -40C to +85C industrial temperature qualification matches factory-floor environments. Estimated PCB area saving versus a discrete op-amp + ADC + MCU approach is approximately 50 percent, reducing both BOM count and assembly cost in volume production.
Рекомендуется
Educational and Hobby Electronics
The PIC16LF1705-I/P is widely used in educational and hobby electronics because the through-hole 14-pin PDIP package is easy to breadboard and replace, and the Microchip MPLAB X IDE with XC8 compiler offers free, well-documented toolchains per the Microchip datasheet 40001770E. The 14KB Flash and 1KB RAM give students room to grow from LED blinky demos to real ADC and PWM projects, while the wide 1.8V to 3.6V operation accepts two AA cells without regulation. Peripherals such as the on-chip op-amps and Core Independent Peripherals let instructors teach modern MCU concepts including hardware state machines and analog integration.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC16LF1705-I/P — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC16F1705-I/P | PIC16LF1704-I/SL | PIC16LF1709-I/P | PIC16LF1703-I/P |
|---|---|---|---|---|---|
| Package | 14-PDIP (0.300 inch) | 14-PDIP - same | 14-SOIC | 20-PDIP | 14-PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage | 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 | 1.8 V to 3.6 V |
| Program Flash | 14 KB | 14 KB | 7 KB | 20 KB | 7 KB |
| Data RAM | 1 KB | 1 KB | 512 B | 1 KB | 512 B |
| Data EEPROM | 128 B | 128 B | 128 B | 128 B | 128 B |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| On-chip Op-Amps | 2 | 2 | 2 | 2 | 1 |
| DAC Channels | 2 x 8-bit | 2 x 8-bit | 2 x 8-bit | 2 x 8-bit | 1 x 8-bit |
| Core Independent Peripherals (CLC/COG/ZCD) | Yes (CLC, COG, ZCD) | Yes | Yes | Yes | Limited |
| Approx. Unit Price (1 pc) | $1.85 (est. as of 2026-09-23) | $1.80 (est.) | $1.40 (est.) | $2.10 (est.) | $1.30 (est.) |
Ключевые отличия
- Wide low-voltage operating range (1.8V-3.6V) with full XLP Sleep current near 20 nA (против PIC16F1705-I/P)
- Integrated Intelligent Analog: 2 on-chip op-amps and 2 x 8-bit DACs (против PIC16LF1554-I/ML)
- Core Independent Peripherals (CLC, COG, ZCD) operate without CPU intervention (против PIC16LF1574-I/P)
- Larger memory (14KB Flash, 1KB RAM) than lower-cost LF siblings (против PIC16LF1703-I/P)
Заметки по проектированию
Place a 100 nF decoupling capacitor as close as physically possible to the VDD pin (pin 14) of the PIC16LF1705-I/P, and add a 10 uF bulk capacitor near the supply rail per Microchip datasheet 40001770E. The LF variant draws very little current in Sleep (~20 nA), so clean decoupling matters most during ADC sampling and active bursts. Estimated: at 32 MHz active, the device consumes roughly 35 uA/MHz, so the bulk cap should recharge quickly between sensor reads.
Through-hole PDIP packages have higher thermal resistance than QFN packages, but at PIC16LF1705-I/P active currents (roughly 35 uA/MHz typical per Microchip datasheet 40001770E) self-heating is negligible in this package. Designers do not need to derate for thermal reasons at 1.8V-3.6V operation up to 32 MHz. Estimated junction temperature rise is well under 5C above ambient in typical sensor-node duty cycles.
Keep the analog signal traces (RA0-RA2, op-amp inputs) short and away from switching signals like PWM outputs and clock traces. Use a ground pour on the bottom layer to provide a low-impedance return path for ADC reference currents per Microchip datasheet 40001770E. If you enable the on-chip op-amps, route their inputs differentially and place the feedback components within a few millimeters of the pins to minimize parasitic capacitance that could destabilize the loop.
Do not confuse the LF voltage range with the F variant: PIC16LF1705-I/P supports 1.8V to 3.6V, while PIC16F1705-I/P supports 2.3V to 5.5V per Microchip datasheet 40001770E. Substituting an F part into an LF design powered from a single Li-ion cell that drops below 2.3V will brown out the MCU. Conversely, an LF part in a 5V rail design will exceed absolute maximum ratings and damage the device. Verify the full part number suffix before layout finalization.
When using the on-chip 10-bit ADC, always start a conversion with a stable reference and adequate acquisition time. Per Microchip datasheet 40001770E, use the FVR (Fixed Voltage Reference) module only after the recommended settling delay; otherwise the first ADC reading may be inaccurate. For op-amp-driven sensor conditioning, use the dedicated CWG/COG peripherals to generate hardware PWM without CPU jitter, which reduces noise injection into the analog front-end.
Информация о соответствии
RoHS and REACH compliant per Microchip product page. Industrial -40C to +85C temperature grade ('I' suffix). Not AEC-Q100 qualified - use automotive-grade PIC16F1705-E/P or similar Q-graded variants for automotive applications.
