PIC16LF1705-I/ML - 8-Bit XLP MCU, 32MHz, 14KB Flash | Microchip
Артикул: PIC16LF1705-I/ML ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $0.94 | $0,94 |
| 10 | $0.86 | $8,60 |
| 100 | $0.72 | $72,00 |
| 500 | $0.61 | $305,00 |
| 1.000 | $0.54 | $540,00 |
PIC16LF1705-I/ML Обзор
What is an 8-bit microcontroller? An 8-bit MCU executes instructions on 8-bit data paths and represents one of the most widely deployed classes of microcontrollers in embedded design. It sits within the broader taxonomy of microcontrollers -> microprocessors -> semiconductors. The PIC16LF1705 specifically belongs to the PIC16F family and combines a RISC Harvard architecture with XLP (eXtreme Low Power) technology, well suited to battery-powered and energy-harvesting designs where standby current is critical.
Key features include a 10-bit ADC with Computation (ADC2) providing automated averaging, filtering and threshold comparison, two on-chip operational amplifiers (op amps), a 5-bit DAC, two comparators, Core Independent Peripherals (CLC, COG, Zero-Cross Detect), Peripheral Pin Select (PPS) for flexible signal routing, and eXtreme Low Power (XLP) modes with sleep current down to nanoamp levels. The device operates from 1.8 V to 3.6 V on the LF (low-voltage) variant.
Internally, the PIC16LF1705 uses a 16-bit instruction word / 8-bit data path Harvard architecture with a 2-stage pipeline, hardware stack, and direct/indirect memory addressing. The integrated op amps, comparators and DAC are tied to the ADC2 pipeline through analog multiplexers, which is what enables many signal-chain tasks (sensor conditioning, threshold detection, waveform generation) to run without CPU intervention - the hallmark of Core Independent Peripherals.
Typical applications include battery-powered sensor nodes, IoT edge devices, low-power remote controls, LED lighting controllers, small appliance user interfaces, and 12 V/24 V industrial sensor conditioning boards where the integrated op amps can directly amplify transducer signals before ADC sampling.
When designing with this part, place a 100 nF decoupling capacitor as close to the VDD pin as possible and use the PPS feature to remap peripherals away from the few QFN pinouts that are inaccessible on a 16-pin package. Always reserve an MCLR pull-up of approximately 10 kohm unless the internal MCLR is enabled.
This page synthesizes distributor pricing, drop-in alternatives and design notes that complement the manufacturer datasheet for engineers sourcing the PIC16LF1705-I/ML on a 16-QFN footprint.
Аналоги без доработки для PIC16LF1705-I/ML — 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/ML (тот же форм-фактор и посадочное место) — отличается по Package, Core Architecture, ADC, I/O Pins, DAC.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC16F1705-I/ML
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC16LF1705-I/P
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$1.1 / шт.
Открыть даташит →PIC16LF1709-I/ML
✅ Прямая замена✓ В наличии
$1.21 / шт.
Открыть даташит →PIC16F1709-I/ML
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$1.28 / шт.
Открыть даташит →PIC16LF1559-I/ML
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
PIC16LF1554-I/ML
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$0.84 / шт.
Открыть даташит →PIC16LF1705-I/ML Максимальные параметры и электрические характеристики
| Core Architecture | PIC16 Enhanced Mid-Range, 8-bit data path / 16-bit instruction word |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| SRAM | 1024 bytes |
| EEPROM | 256 bytes |
| Max CPU Speed | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Рабочая температура | -40C to +85C (Industrial) |
| ADC | 10-bit ADC2 with Computation (automated averaging/filtering/threshold) |
| On-chip Op Amps | 2 |
| Comparators | 2 |
| DAC | 5-bit DAC |
| Core Independent Peripherals | CLC, COG, Zero-Cross Detect |
| Peripheral Pin Select (PPS) | Yes |
| I/O Pins | 12 (on 16-pin QFN) |
| Корпус | 16-pin QFN 4x4 mm (ML) |
| Тип монтажа | Surface Mount |
| Уровень MSL | 1 |
| Статус RoHS | Compliant |
Конфигурация выводов PIC16LF1705-I/ML
| Контакт 1 | RA5/CLKIN/OSC1 — OSC input / GPIO RA5 |
| Контакт 2 | RA4/CLKOUT/OSC2 — OSC output / GPIO RA4 |
| Контакт 3 | RA3/MCLR/VPP — Master Clear reset (active low) or programming high voltage |
| Контакт 4 | RC5/PPS — GPIO RC5 / PPS-capable |
| Контакт 5 | RC4/PPS — GPIO RC4 / PPS-capable |
| Контакт 6 | RC3/PPS — GPIO RC3 / PPS-capable |
| Контакт 7 | RC2/PPS — GPIO RC2 / PPS-capable |
| Контакт 8 | RC1/PPS — GPIO RC1 / PPS-capable |
| Контакт 9 | RC0/PPS — GPIO RC0 / PPS-capable |
| Контакт 10 | VSS — Ground |
| Контакт 11 | VDD — Positive supply (1.8 V to 3.6 V) |
| Контакт 12 | RA2/PPS — GPIO RA2 / PPS-capable |
| Контакт 13 | RA1/PPS/ICSPCLK — GPIO RA1 / PPS / ICD clock |
| Контакт 14 | RA0/PPS/ICSPDAT — GPIO RA0 / PPS / ICD data |
| Контакт 15 | RB7/PPS — GPIO RB7 / PPS-capable |
| Контакт 16 | RB6/PPS — GPIO RB6 / PPS-capable |
Типичное применение
PIC16LF1705-I/ML подходит для 6 применениеs: Battery-Powered Sensor Node, IoT Edge Device / Smart Sensor, LED Lighting Controller, Small Appliance User Interface, Industrial Sensor Conditioning Board, Low-Power Remote Control / HMI.
Battery-Powered Sensor Node
The PIC16LF1705-I/ML is well suited to battery-powered wireless sensor nodes where its nanoamp XLP sleep current and 1.8 V minimum VDD keep the standby drain below typical coin-cell self-discharge. The integrated 10-bit ADC2 with Computation Mode performs automatic averaging and threshold comparison without waking the CPU, which extends battery life by orders of magnitude over polled designs. The two on-chip op amps can be configured as low-side current-sense amplifiers for battery-monitoring, replacing external analog front-ends.
Рекомендуется
IoT Edge Device / Smart Sensor
For IoT edge devices and smart-home sensors, the PIC16LF1705-I/ML combines Core Independent Peripherals (CLC, COG, Zero-Cross Detect) so that signal-conditioning tasks run autonomously without CPU involvement. PPS lets the designer route UART, I2C or SPI to whichever of the 12 exposed I/Os are physically available after PCB layout, freeing tightly-routed QFN boards. The 14 KB Flash supports a fully-featured IoT firmware image including a TLS-style state machine or proprietary RF stack handshake.
Рекомендуется
LED Lighting Controller
The PIC16LF1705-I/ML can drive LED lighting controllers using its COG (Configurable Logic Gate) and Zero-Cross Detect peripherals to perform AC zero-crossing detection and TRIAC dimming without CPU cycles. The 5-bit DAC and on-chip comparators provide smooth analog dimming, while PWM plus the 32 MHz clock ensure flicker-free operation above 200 Hz. PPS allows the PWM outputs to be mapped to any free QFN pin, simplifying routing on a compact lighting PCB.
Рекомендуется
Small Appliance User Interface
In small appliance user interfaces such as coffee machines, blenders or air purifiers, the PIC16LF1705-I/ML's on-chip op amps drive resistive touch or capacitive sensing front-ends, while comparators detect button presses through a low-power wake-up interrupt. CLC peripherals can debounce and route signals in hardware, eliminating CPU overhead. The 16-QFN 4x4 mm footprint fits even the tightest UI panel layouts without sacrificing robustness.
Рекомендуется
Industrial Sensor Conditioning Board
For 12 V/24 V industrial sensor-conditioning boards, the PIC16LF1705-I/ML's two integrated op amps directly amplify thermocouple, RTD or strain-gauge signals before the 10-bit ADC2 samples them. The ADC2 Computation Mode performs oversampling and filtering in hardware, offloading noise-sensitive signal processing from the CPU. The 32 MHz CPU runs PID compensation loops and Modbus framing for sensor hubs. The -40C to +85C industrial temperature grade matches factory-floor environments.
Рекомендуется
Low-Power Remote Control / HMI
The PIC16LF1705-I/ML supports low-power remote-control and HMI designs where its nanoamp sleep current extends coin-cell life to multi-year timescales. The eXLP wake-from-sleep on comparator change allows the MCU to remain dormant until a button is pressed, dramatically reducing average drain. PPS lets the developer route IR, RF or BLE-UART peripherals to whatever QFN pin faces the antenna PCB section, simplifying mechanical-to-electrical layout integration.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC16LF1705-I/ML — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC16F1705-I/ML | PIC16LF1705-I/P | PIC16LF1709-I/ML | PIC16F1709-I/ML | PIC16LF1559-I/ML | PIC16LF1554-I/ML |
|---|---|---|---|---|---|---|---|
| Package | 16-QFN (4x4) (ML) | 16-QFN (4x4) (ML) | 16-QFN (4x4) (ML) | 16-QFN (4x4) (ML) | 16-QFN (4x4) (ML) | 16-QFN (4x4) (ML) | 16-QFN (4x4) (ML) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 14 KB | 14 KB | 32 KB | 32 KB | 8 KB | 4 KB |
| SRAM | 1024 B | 1024 B | 1024 B | 2048 B | 2048 B | 512 B | 256 B |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 16 MHz |
| Supply 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 | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| On-chip Op Amps | 2 | 2 | 2 | 2 | 2 | 0 | 0 |
| 10-bit ADC2 | Yes (with Computation) | Yes | Yes | Yes | Yes | Yes (basic) | Yes (basic) |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | Yes | Yes | Limited |
| Unit Price (qty 1, USD) | 0.94 | 1.02 | 0.96 | 1.18 | 1.24 | 0.78 | 0.74 |
Ключевые отличия
- Lower-voltage silicon for single-cell applications (против PIC16F1705-I/ML)
- Smaller Flash, lower cost (против PIC16LF1709-I/ML)
- Two on-chip op amps eliminate external analog front-end (против PIC16LF1559-I/ML)
Заметки по проектированию
Place a 100 nF decoupling capacitor as close to the VDD pin (pin 11) of the PIC16LF1705-I/ML as possible, with a 10 uF bulk capacitor at the board's supply entry. Estimated: VDD glitch during ADC burst conversion can reach 50 mV without local decoupling, which degrades ADC2 accuracy by 1-2 LSB. An additional 10 kohm pull-up on MCLR (pin 3) is recommended unless the internal MCLR is enabled in the configuration word.
The 16-QFN package has an exposed thermal pad (EP) on the underside that MUST be soldered to the PCB's ground pad for mechanical reliability and thermal dissipation. Estimated: a properly soldered EP provides roughly 30 C/W theta_JA; an un-soldered EP raises theta_JA by 2-3x and can violate thermal limits at 32 MHz continuous operation. Use a via-array (4-8 thermal vias) under the pad to reduce junction temperature rise.
A common pitfall when migrating firmware between PIC16LF1705 variants is the Peripheral Pin Select (PPS) lock state. PPS is unlocked by a specific sequence of writes to PPSLOCK; failure to perform the unlock before remapping UART/SPI/I2C results in the peripherals defaulting back to fixed pins. Always reset PPS to the device-default mapping at startup and only remap after the unlock sequence is executed. Also note that the LF variant's 32 MHz operation requires VDD above 3.0 V; at 1.8 V the maximum is 16 MHz.
When the PIC16LF1705's on-chip op amps drive the ADC2 directly, keep the analog traces short and routed over a solid ground pour. Estimated: traces longer than 25 mm in noisy digital environments can pick up switching noise from PWM/CWG outputs and corrupt the 10-bit ADC reading by 2-3 LSB. For thermocouple or strain-gauge amplification, use the FVR (Fixed Voltage Reference) with the ADC rather than VDD to maintain gain accuracy across the supply range.
Информация о соответствии
RoHS and REACH compliant per Microchip product page. The PIC16LF1705 family is not AEC-Q100 qualified; for automotive use, select PIC16F1705-I/ML with extended testing or move to a Q100-graded PIC16 such as PIC16F18155.
