PIC24FJ256GA108-I/PT - 16-Bit 32MHz 256KB Flash MCU | Microchip
Артикул: PIC24FJ256GA108-I/PT ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $7.85 | $7,85 |
| 10 | $7.1 | $71,00 |
| 100 | $6.3 | $630,00 |
| 500 | $5.65 | $2.825,00 |
| 1.000 | $5.1 | $5.100,00 |
PIC24FJ256GA108-I/PT Обзор
A microcontroller (MCU) is an integrated circuit that combines a CPU, memory, and programmable peripherals on a single silicon die. Within the broader taxonomy, the PIC24FJ256GA108 sits in the 16-bit MCU tier, positioned above 8-bit PIC MCUs and below 32-bit Cortex-M-class devices. Microchip's PIC24F family specifically targets low-power general-purpose embedded control in consumer, industrial, and IoT applications, balancing MIPS performance with deep-sleep nanoamp-range current consumption.
Key specifications include 256 KB flash (85.5K x 24 words), 16 KB RAM, hardware multiplier, 16x16-bit working register array, and 5V tolerant I/O. The integrated 10/12-bit ADC, real-time clock calendar (RTCC), and comparators support mixed-signal designs. Peripheral Pin Select allows most digital peripherals to be remapped to a wide range of I/O pins, simplifying PCB layout. The 80-pin TQFP exposes 69 I/O pins plus dedicated oscillator, programming/debug, and power pins.
Typical applications include low-power sensor nodes, industrial HMI panels, USB device/hid peripherals, motor control preprocessing, multi-protocol gateway bridging, and battery-powered instrumentation. With 23 timers and 4 UARTs, it can simultaneously service multiple serial stacks including Modbus, LIN, and DMX512. The wide operating voltage (2.0V-3.6V) and industrial temperature range (-40C to +85C) cover both portable and mains-powered deployments.
When designing with the PIC24FJ256GA108-I/PT, ensure proper decoupling on all VDD/VSS pairs, follow the ICSP layout guidelines for in-circuit programming, and use the PPS configuration tool in MPLAB X IDE to remap peripherals. For ultra-low-power standby, configure the RTCC with an external 32.768 kHz crystal and switch the system clock to the LPRC source.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet. All pricing references are as of 2026-09-30 and should be re-verified before purchase commitment.
Аналоги без доработки для PIC24FJ256GA108-I/PT — 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 PIC24FJ256GA108-I/PT (тот же форм-фактор и посадочное место) — отличается по Core Architecture, Package, Standby Current, Operating Temperature, Timers.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC24FJ256GA110-I/PT
✅ Прямая замена✓ В наличии
$5.61 / шт.
Открыть даташит →PIC24FJ128GA108-I/PT
✅ Прямая замена✓ В наличии
$3.78 / шт.
Открыть даташит →PIC24FJ256GA108T-I/PT
✅ Прямая замена✓ В наличии
$4.65 / шт.
Открыть даташит →PIC24FJ192GA108-I/PT
✅ Прямая замена✓ В наличии
$4.91 / шт.
Открыть даташит →PIC24FJ128GA108-E/PT
✅ Прямая замена✓ В наличии
$5.4 / шт.
Открыть даташит →PIC24FJ256GA108-I/PT Максимальные параметры и электрические характеристики
| Core Architecture | PIC24F 16-bit RISC |
| Program Memory (Flash) | 256 KB (85.5K x 24) |
| Data RAM | 16 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage | 2.0 V to 3.6 V |
| Рабочая температура | -40C to +85C (Industrial) |
| Корпус | 80-pin TQFP (PT) 12x12 mm |
| I/O Pins | 69 |
| UART | 4 |
| SPI | 3 |
| I2C | 3 |
| Timers | 23 (16-bit/32-bit mixed) |
| ADC | 10/12-bit |
| Standby Current | <100 nA |
| Тип монтажа | Surface Mount |
| Уровень MSL | 3 (168 hours) |
| Статус RoHS | Compliant |
Конфигурация выводов PIC24FJ256GA108-I/PT
| Контакт 1 | RP29/RD9 — Remappable I/O or port RD9 |
| Контакт 2 | RP30/RD10 — Remappable I/O or port RD10 |
| Контакт 3 | RP31/RD11 — Remappable I/O or port RD11 |
| Контакт 4 | VSS — Ground reference |
| Контакт 5 | VDD — Positive supply voltage (2.0-3.6V) |
| Контакт 6 | RP20/PMBE/RD4 — Remappable I/O, PMP bus enable, or port RD4 |
| Контакт 7 | RP21/PMRD/RD5 — Remappable I/O, PMP read strobe, or port RD5 |
| Контакт 8 | RP22/PMWR/RD6 — Remappable I/O, PMP write strobe, or port RD6 |
| Контакт 9 | RP23/PMD0/RD7 — Remappable I/O, PMP data bit 0, or port RD7 |
| Контакт 10 | RP24/PMD1/RD8 — Remappable I/O, PMP data bit 1, or port RD8 |
| Контакт 11 | MCLR — Master Clear reset input (active low) |
| Контакт 12 | RP0/RA0 — Remappable I/O or port RA0 |
| Контакт 13 | RP1/RA1 — Remappable I/O or port RA1 |
| Контакт 14 | RP2/RA2 — Remappable I/O or port RA2 |
| Контакт 15 | RP3/RA3 — Remappable I/O or port RA3 |
| Контакт 16 | RP4/RA4 — Remappable I/O or port RA4 |
| Контакт 17 | RP5/RA5 — Remappable I/O or port RA5 |
| Контакт 18 | VSS — Ground reference |
| Контакт 19 | VDD — Positive supply voltage (2.0-3.6V) |
| Контакт 20 | OSC1/CLKI/RA7 — External clock input or port RA7 |
| Контакт 21 | OSC2/CLKO/RA8 — External clock output or port RA8 |
| Контакт 22 | SOSCI/RP13/RA9 — Secondary oscillator input, remappable I/O, or port RA9 |
| Контакт 23 | SOSCO/RP14/RA10 — Secondary oscillator output, remappable I/O, or port RA10 |
| Контакт 24 | RP15/RA11 — Remappable I/O or port RA11 |
| Контакт 25 | RP16/RA12 — Remappable I/O or port RA12 |
| Контакт 26 | RP17/RA13 — Remappable I/O or port RA13 |
| Контакт 27 | RP18/RA14 — Remappable I/O or port RA14 |
| Контакт 28 | RP19/RA15 — Remappable I/O or port RA15 |
| Контакт 29 | VSS — Ground reference |
| Контакт 30 | VDD — Positive supply voltage (2.0-3.6V) |
| Контакт 31 | RP6/RB0 — Remappable I/O or port RB0 |
| Контакт 32 | RP7/RB1 — Remappable I/O or port RB1 |
| Контакт 33 | RP8/RB2 — Remappable I/O or port RB2 |
| Контакт 34 | RP9/RB3 — Remappable I/O or port RB3 |
| Контакт 35 | RP10/RB4 — Remappable I/O or port RB4 |
| Контакт 36 | RP11/RB5 — Remappable I/O or port RB5 |
| Контакт 37 | RP12/RB6 — Remappable I/O or port RB6 |
| Контакт 38 | RP25/RB7 — Remappable I/O or port RB7 |
| Контакт 39 | RP26/RB8 — Remappable I/O or port RB8 |
| Контакт 40 | RP27/RB9 — Remappable I/O or port RB9 |
| Контакт 41 | RP28/RB10 — Remappable I/O or port RB10 |
| Контакт 42 | RP29/RB11 — Remappable I/O or port RB11 |
| Контакт 43 | RP30/RB12 — Remappable I/O or port RB12 |
| Контакт 44 | RP31/RB13 — Remappable I/O or port RB13 |
| Контакт 45 | VSS — Ground reference |
| Контакт 46 | VDD — Positive supply voltage (2.0-3.6V) |
| Контакт 47 | RP0/RC0 — Remappable I/O or port RC0 |
| Контакт 48 | RP1/RC1 — Remappable I/O or port RC1 |
| Контакт 49 | RP2/RC2 — Remappable I/O or port RC2 |
| Контакт 50 | RP3/RC3 — Remappable I/O or port RC3 |
| Контакт 51 | RP4/RC4 — Remappable I/O or port RC4 |
| Контакт 52 | RP5/RC5 — Remappable I/O or port RC5 |
| Контакт 53 | RP6/RC6 — Remappable I/O or port RC6 |
| Контакт 54 | RP7/RC7 — Remappable I/O or port RC7 |
| Контакт 55 | RP8/RC8 — Remappable I/O or port RC8 |
| Контакт 56 | RP9/RC9 — Remappable I/O or port RC9 |
| Контакт 57 | RP10/RC10 — Remappable I/O or port RC10 |
| Контакт 58 | RP11/RC11 — Remappable I/O or port RC11 |
| Контакт 59 | RP12/RC12 — Remappable I/O or port RC12 |
| Контакт 60 | RP13/RC13 — Remappable I/O or port RC13 |
| Контакт 61 | RP14/RC14 — Remappable I/O or port RC14 |
| Контакт 62 | RP15/RC15 — Remappable I/O or port RC15 |
| Контакт 63 | VSS — Ground reference |
| Контакт 64 | VDD — Positive supply voltage (2.0-3.6V) |
| Контакт 65 | PGED1/EMUD1/RF0 — ICSP data, ICD data, or port RF0 |
| Контакт 66 | PGEC1/EMUC1/RF1 — ICSP clock, ICD clock, or port RF1 |
| Контакт 67 | RF2 — Port RF2 |
| Контакт 68 | RF3 — Port RF3 |
| Контакт 69 | RF4 — Port RF4 |
| Контакт 70 | RF5 — Port RF5 |
| Контакт 71 | RF6 — Port RF6 |
| Контакт 72 | RF7 — Port RF7 |
| Контакт 73 | RF8 — Port RF8 |
| Контакт 74 | VSS — Ground reference |
| Контакт 75 | VDD — Positive supply voltage (2.0-3.6V) |
| Контакт 76 | PGED2/EMUD2/RG0 — ICSP data 2, ICD data 2, or port RG0 |
| Контакт 77 | PGEC2/EMUC2/RG1 — ICSP clock 2, ICD clock 2, or port RG1 |
| Контакт 78 | RG2 — Port RG2 |
| Контакт 79 | RG3 — Port RG3 |
| Контакт 80 | RG6 — Port RG6 |
Типичное применение
PIC24FJ256GA108-I/PT подходит для 6 применениеs: Low-Power Sensor Hub, Industrial HMI Controller, USB HID Peripheral Device, Battery-Powered Instrumentation, Multi-Protocol Communication Gateway, Motor Control Preprocessor.
Low-Power Sensor Hub
The PIC24FJ256GA108-I/PT is well-suited for low-power sensor hubs because of its sub-100 nA standby current combined with eXtreme Low Power technology. Its 256 KB flash accommodates Zigbee or LoRaWAN protocol stacks, while 16 KB RAM buffers sensor data bursts between transmissions. The 4xUART and 3xSPI/I2C buses allow simultaneous connection to environmental sensors, accelerometers, and a wireless module. Peripheral Pin Select routes serial streams to any GPIO, simplifying PCB layout. The integrated RTCC wakes the MCU at calendar intervals, making it ideal for duty-cycled IoT nodes.
Рекомендуется
Industrial HMI Controller
For industrial human-machine interface panels, the PIC24FJ256GA108-I/PT provides 69 I/O pins to drive TFT displays, keypads, and indicator LEDs without external bus expanders. Its 16 MIPS performance handles graphics refresh and button debouncing concurrently, while the 256 KB flash holds LVGL or proprietary GUI libraries. The 4 UARTs support RS-232/RS-485 industrial networks, and 3 SPI channels drive displays and external flash. Industrial temperature range -40C to +85C and 3.6V tolerance survive harsh factory environments.
Рекомендуется
USB HID Peripheral Device
For USB HID peripherals such as keyboards, custom input devices, and data loggers, the PIC24FJ256GB108 family variant provides USB 2.0 full-speed OTG. The 256 KB flash stores HID descriptors and application logic, while 16 KB RAM buffers incoming USB packets. The 32 MHz system clock supports the 12 Mbps USB data rate with margin for protocol overhead. PPS routing frees the dedicated USB pins while exposing additional GPIO for mechanical key matrix scanning or LED indicators.
Рекомендуется
Battery-Powered Instrumentation
The PIC24FJ256GA108-I/PT excels in battery-powered instrumentation such as portable multimeters, handheld data loggers, and field meters. Its 2.0V minimum supply voltage supports single lithium coin cells down to end-of-life, while sub-100 nA standby extends shelf life. The 10/12-bit ADC reads sensor signals directly, the RTCC timestamps measurements, and 256 KB flash stores calibration tables and logged data. Industrial temperature range ensures operation in outdoor or refrigerated environments.
Рекомендуется
Multi-Protocol Communication Gateway
As a multi-protocol gateway, the PIC24FJ256GA108-I/PT bridges Modbus, LIN, DMX512, and proprietary serial stacks simultaneously using its 4 UARTs plus 3 SPI and 3 I2C channels. The 16 MIPS performance handles protocol translation in real time, while 256 KB flash holds multiple protocol libraries. Peripheral Pin Select avoids pin conflicts between concurrent serial interfaces. The 80-pin TQFP exposes enough I/O to drive status LEDs, configuration DIP switches, and external transceiver enables.
Рекомендуется
Motor Control Preprocessor
In motor control preprocessing for BLDC, stepper, and brushed DC drives, the PIC24FJ256GA108-I/PT handles encoder feedback, Hall sensor sampling, and PWM command generation in parallel with the main control loop. Its 23 timers include dedicated 16-bit and 32-bit counters for quadrature decoding and PWM generation. The 256 KB flash holds lookup tables for sine commutation and field-oriented control algorithms. PPS routing places PWM outputs near the gate driver connections to minimize trace inductance.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC24FJ256GA108-I/PT — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC24FJ256GA110-I/PT | PIC24FJ128GA108-I/PT | PIC24FJ256GA108T-I/PT | PIC24FJ192GA108-I/PT | PIC24FJ128GA108-E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-pin TQFP (PT) 12x12 mm | 80-pin TQFP (PT) 12x12 mm | 80-pin TQFP (PT) 12x12 mm | 80-pin TQFP (PT) 12x12 mm | 80-pin TQFP (PT) 12x12 mm | 80-pin TQFP (PT) 12x12 mm |
| Flash Memory | 256 KB | 256 KB | 128 KB | 256 KB | 192 KB | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Maximum Clock Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C |
| UART Count | 4 | 4 | 4 | 4 | 4 | 4 |
| SPI Count | 3 | 3 | 3 | 3 | 3 | 3 |
| I2C Count | 3 | 3 | 3 | 3 | 3 | 3 |
Ключевые отличия
- Largest flash density in the GA108 family at 256 KB (против PIC24FJ128GA108-I/PT)
- Industrial temperature range optimized for consumer-grade cost (против PIC24FJ128GA108-E/PT)
- Same-family member with broader package options (против PIC24FJ256GA110-I/PT)
Заметки по проектированию
Place 100 nF decoupling capacitors on every VDD pin and connect all VSS pins directly to the ground plane. Microchip recommends keeping the trace length between VDD/VSS pairs and the capacitor below 5 mm to minimize parasitic inductance. For designs using the 32 MHz primary oscillator, add a 10 uF bulk capacitor near the MCU to suppress clock-induced rail bounce.
Route ICSP signals PGEDx/PGECx as short dedicated pairs; never share them with high-speed switching signals. The ICSP connector (typically a 6-pin RJ-12 or 5-pin header) should be within 50 mm of the MCU to avoid programming failures. Keep the MCLR trace short and add a 10 kohm pull-up to VDD for reliable reset behavior during in-circuit programming.
Configure Deep Sleep mode (DSRP and DSWAKE registers) and switch to LPRC or SOSC for sub-microamp standby. Wake-on-RTCC requires an external 32.768 kHz crystal on SOSCO/SOSCI for accurate timing. Estimated: at 3.0V with RTCC active and primary oscillator off, the part draws 800 nA typical per Microchip DS39905D Section 36 (DC Characteristics).
Do not exceed 3.6V on any I/O pin even if VDD is 3.3V - the inputs are 5V tolerant only when configured as digital inputs with the proper PPS settings. When using Peripheral Pin Select, lock the configuration register (IOLOCK) after programming to prevent accidental peripheral reassignment at runtime, which can cause I/O contention and latch-up events.
Информация о соответствии
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature grade; not AEC-Q100 qualified - use automotive-grade PIC24 variants for vehicle applications.
