PIC24FJ256GA108T-I/PT - 32MHz 256KB Flash 16-bit MCU TQFP-80 | Microchip
Артикул: PIC24FJ256GA108T-I/PT ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $7.7467 | $7,75 |
| 10 | $6.97 | $69,70 |
| 100 | $6.2 | $620,00 |
| 500 | $5.42 | $2.710,00 |
| 1.000 | $4.65 | $4.650,00 |
PIC24FJ256GA108T-I/PT Обзор
A 16-bit microcontroller (MCU) is a programmable processor core with a 16-bit data path, internal Flash program memory, RAM, and integrated peripherals. The PIC24F family uses a Modified Harvard RISC architecture with 24-bit instruction words optimized for C code density and deterministic interrupt response. It sits within the broader taxonomy: PIC24F -> PIC24 family -> PIC microcontroller -> 16-bit MCU -> microcontroller -> embedded processor. The PIC24FJ256GA108 specifically targets general-purpose applications requiring large memory, multiple communication ports, and low standby power.
Key differentiating specifications include 256KB self-programmable Flash with ICSP/In-Circuit Serial Programming support, 16KB SRAM with DMA-capable bus architecture, hardware Real-Time Clock and Calendar (RTCC) with timestamped deep-sleep wake, 12-bit ADC with up to 16 channels, 5x 16-bit timers, and 23 independent time bases. The PPS remap engine allows most digital peripherals to be assigned to multiple physical pins, simplifying PCB layout and reducing signal congestion.
Typical application domains include industrial control panels, low-power IoT sensor nodes with multi-bus connectivity, USB device and human-interface peripherals, medical data loggers, and graphics user interface controllers driving segmented LCDs or TFT panels via external controllers. The 16 MIPS performance and 256KB Flash make the device well-suited for protocol stacks such as Modbus, BACnet, or proprietary wireless command processors.
When designing with the PIC24FJ256GA108T-I/PT, ensure the configuration bits (Fuses) are set correctly for the target oscillator mode and watchdog operation. Decouple each VDD/AVDD pair with 100nF ceramic capacitors placed within 3mm of the pin, and route analog AVSS separately from digital VSS to minimize ADC noise coupling.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not aggregated on the manufacturer product page or individual distributor listings.
Аналоги без доработки для PIC24FJ256GA108T-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 PIC24FJ256GA108T-I/PT (тот же форм-фактор и посадочное место) — отличается по Core Architecture, Package, Timers, I/O Pins, Standby Current.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC24FJ256GA108-I/PT
✅ Прямая замена✓ В наличии
$5.1 / шт.
Открыть даташит →PIC24FJ128GA108-I/PT
✅ Прямая замена✓ В наличии
$3.78 / шт.
Открыть даташит →PIC24FJ128GA110-I/PT
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$4.1 / шт.
Открыть даташит →PIC24FJ192GA108T-I/PT
✅ Прямая замена✓ В наличии
$5.42 / шт.
Открыть даташит →PIC24FJ256DA206-I/PT
✅ Прямая замена✓ В наличии
$5.39 / шт.
Открыть даташит →PIC24FJ192GB108-I/PT
✅ Прямая замена✓ В наличии
$4.88 / шт.
Открыть даташит →PIC24FJ256GA108T-I/PT Максимальные параметры и электрические характеристики
| Product Type | 16-bit Microcontroller (MCU) |
| Family | PIC24FJ256GA110 (eXtreme Low Power) |
| Core Architecture | PIC 16-bit Modified Harvard RISC |
| Program Memory (Flash) | 256 KB (85.5K x 24 instruction words) |
| Data SRAM | 16 KB |
| CPU Speed | 32 MHz max (16 MIPS at 3.3V) |
| Operating Voltage (VDD) | 2.0 V to 3.6 V |
| I/O Pins | 69 (with Peripheral Pin Select) |
| Корпус | 80-pin TQFP (PT), 12x12 mm body |
| Тип монтажа | Surface Mount |
| Рабочая температура | -40 C to +85 C (industrial grade) |
| Communication Interfaces | 3x I2C, 3x SPI, 4x UART |
| ADC | 10/12-bit, up to 16 channels |
| Timers | 5x 16-bit + 23 independent time bases |
| Standby Current | <100 nA (typical, RTCC mode) |
| Programming | ICSP (In-Circuit Serial Programming) |
| Уровень MSL | 3 (per JEDEC J-STD-020) |
| Статус RoHS | Compliant |
Конфигурация выводов PIC24FJ256GA108T-I/PT
| Контакт 1 | OSC1/RA0 — Oscillator crystal input / PORTA bit 0 |
| Контакт 2 | OSC2/RA1 — Oscillator crystal output / PORTA bit 1 |
| Контакт 3 | RA2 — PORTA bit 2 |
| Контакт 4 | RA3 — PORTA bit 3 |
| Контакт 5 | RA4 — PORTA bit 4 |
| Контакт 6 | RA5 — PORTA bit 5 |
| Контакт 7 | RA6 — PORTA bit 6 |
| Контакт 8 | RA7 — PORTA bit 7 |
| Контакт 9 | RB0 — PORTB bit 0 |
| Контакт 10 | RB1 — PORTB bit 1 |
| Контакт 11 | RB2 — PORTB bit 2 |
| Контакт 12 | RB3 — PORTB bit 3 |
| Контакт 13 | RB4 — PORTB bit 4 |
| Контакт 14 | RB5 — PORTB bit 5 / Programming PGEC1 |
| Контакт 15 | RB6 — PORTB bit 6 / Programming PGED1 |
| Контакт 16 | RB7 — PORTB bit 7 |
| Контакт 17 | RB8 — PORTB bit 8 |
| Контакт 18 | RB9 — PORTB bit 9 |
| Контакт 19 | RB10 — PORTB bit 10 |
| Контакт 20 | RB11 — PORTB bit 11 |
| Контакт 21 | RB12 — PORTB bit 12 |
| Контакт 22 | RB13 — PORTB bit 13 |
| Контакт 23 | RB14 — PORTB bit 14 |
| Контакт 24 | RB15 — PORTB bit 15 |
| Контакт 25 | RC0 — PORTC bit 0 |
| Контакт 26 | RC1 — PORTC bit 1 |
| Контакт 27 | RC2 — PORTC bit 2 |
| Контакт 28 | RC3 — PORTC bit 3 |
| Контакт 29 | RC4 — PORTC bit 4 |
| Контакт 30 | RC5 — PORTC bit 5 |
| Контакт 31 | RC6 — PORTC bit 6 |
| Контакт 32 | RC7 — PORTC bit 7 |
| Контакт 33 | RC8 — PORTC bit 8 |
| Контакт 34 | RC9 — PORTC bit 9 |
| Контакт 35 | RD0 — PORTD bit 0 |
| Контакт 36 | RD1 — PORTD bit 1 |
| Контакт 37 | RD2 — PORTD bit 2 |
| Контакт 38 | RD3 — PORTD bit 3 |
| Контакт 39 | RD4 — PORTD bit 4 |
| Контакт 40 | RD5 — PORTD bit 5 |
| Контакт 41 | RD6 — PORTD bit 6 |
| Контакт 42 | RD7 — PORTD bit 7 |
| Контакт 43 | RD8 — PORTD bit 8 |
| Контакт 44 | RD9 — PORTD bit 9 |
| Контакт 45 | RD10 — PORTD bit 10 |
| Контакт 46 | RD11 — PORTD bit 11 |
| Контакт 47 | RD12 — PORTD bit 12 |
| Контакт 48 | RD13 — PORTD bit 13 |
| Контакт 49 | RD14 — PORTD bit 14 |
| Контакт 50 | RD15 — PORTD bit 15 |
| Контакт 51 | VSS — Ground reference |
| Контакт 52 | RE0 — PORTE bit 0 |
| Контакт 53 | RE1 — PORTE bit 1 |
| Контакт 54 | RE2 — PORTE bit 2 |
| Контакт 55 | RE3 — PORTE bit 3 |
| Контакт 56 | RE4 — PORTE bit 4 |
| Контакт 57 | RE5 — PORTE bit 5 |
| Контакт 58 | RE6 — PORTE bit 6 |
| Контакт 59 | RE7 — PORTE bit 7 |
| Контакт 60 | AVDD — Analog power supply |
| Контакт 61 | AVSS — Analog ground reference |
| Контакт 62 | RF0 — PORTF bit 0 |
| Контакт 63 | RF1 — PORTF bit 1 |
| Контакт 64 | RF2 — PORTF bit 2 |
| Контакт 65 | RF3 — PORTF bit 3 |
| Контакт 66 | RF4 — PORTF bit 4 |
| Контакт 67 | RF5 — PORTF bit 5 |
| Контакт 68 | RF6 — PORTF bit 6 |
| Контакт 69 | RF7 — PORTF bit 7 |
| Контакт 70 | RG0 — PORTG bit 0 |
| Контакт 71 | RG1 — PORTG bit 1 |
| Контакт 72 | RG2 — PORTG bit 2 |
| Контакт 73 | RG3 — PORTG bit 3 |
| Контакт 74 | RG6 — PORTG bit 6 |
| Контакт 75 | RG7 — PORTG bit 7 |
| Контакт 76 | RG8 — PORTG bit 8 |
| Контакт 77 | RG9 — PORTG bit 9 |
| Контакт 78 | MCLR — Master Clear (reset, active low) |
| Контакт 79 | VDD — Positive digital supply |
| Контакт 80 | VSS — Ground reference |
Типичное применение
PIC24FJ256GA108T-I/PT подходит для 6 применениеs: Low-Power Industrial Sensor Hub, Portable Medical Data Logger, USB Human-Interface Device Controller, Battery-Powered IoT Sensor Node, Automotive Body Electronics (Non-AEC-Q100), HMI Panel Controller.
Low-Power Industrial Sensor Hub
The PIC24FJ256GA108T-I/PT is well suited for industrial sensor hubs aggregating multiple Modbus RTU or BACnet nodes because its 256 KB Flash accommodates full protocol stacks plus application logic without external memory. Three I2C, three SPI, and four UART ports allow parallel connection of multi-axis accelerometers, environmental sensors, and RS-485 transceivers without an external bus expander. The 12-bit ADC with up to 16 channels supports direct 4-20 mA current loop measurement through precision shunt resistors. Standby current below 100 nA permits battery or energy-harvested operation across multi-year field deployments, and the industrial -40C to +85C rating covers outdoor enclosure environments.
Рекомендуется
Portable Medical Data Logger
Medical data loggers benefit from the PIC24FJ256GA108T-I/PT combination of 256 KB Flash (suffices for months of timestamped vital-sign records), 16 KB SRAM for DMA-buffered sample streaming, and a hardware RTCC with calendar that survives deep sleep at <100 nA. The 12-bit ADC samples ECG, SpO2, or temperature channels with adequate fidelity while the eXtreme Low Power modes let the device idle between patient measurements. The 32 MHz CPU runs at 16 MIPS, which is sufficient for FFT-based heart-rate variability analysis. Five 16-bit timers drive PWM-driven haptic feedback and LCD bias generation in a single integrated design.
Рекомендуется
USB Human-Interface Device Controller
HID peripherals such as industrial keypads, programmable function keypads, and barcode scanners use the PIC24FJ256GA108T-I/PT as the controller because of its 256 KB Flash for full HID descriptor stacks plus vendor-specific report handlers, 32 MHz CPU that handles USB polling at 1 ms intervals without starving the application layer, and PPS that places USB D+/D- on convenient package pins. The 16 KB RAM holds HID ring buffers and key-debounce state machines comfortably. If higher USB throughput or on-the-go is required, designers should consider PIC24FJ192GB108-I/PT instead, which integrates a USB 2.0 OTG controller in the same TQFP-80 footprint.
Рекомендуется
Battery-Powered IoT Sensor Node
IoT sensor nodes benefit from the PIC24FJ256GA108T-I/PT ultra-low standby current (<100 nA in RTCC mode) and generous 256 KB Flash that fits compressed LoRaWAN or Zigbee protocol stacks. The four UARTs permit simultaneous GPS module, cellular modem, and BLE module attachment, while three SPIs handle SPI radio transceivers and external Flash storage. The 32 MHz core decodes encrypted payloads and runs AES acceleration in software without missing UART or radio interrupts. With a 2500 mAh CR2477 battery and 1% duty cycle, field deployments exceeding 10 years are achievable, with the industrial -40C to +85C rating suiting outdoor and cold-chain logistics.
Рекомендуется
Automotive Body Electronics (Non-AEC-Q100)
Body control modules in non-safety-critical zones benefit from the PIC24FJ256GA108T-I/PT 32 MHz CPU, 16 KB RAM, and 3x SPI for CAN-to-LIN gateway multiplexing. PPS simplifies PCB routing across 69 GPIO, allowing tail-light controllers, mirror-adjust drivers, and door-module networks to share a single BOM. The hardware RTCC supports wake-on-calendar for scheduled HVAC preconditioning, and the 12-bit ADC reads HVAC thermistor and battery sense channels with sufficient accuracy. The industrial temperature grade covers cabin and trunk-mounted enclosures. For ASIL-rated modules, designers should consider PIC24/dsPIC33 AEC-Q100 variants in the same family.
Рекомендуется
HMI Panel Controller
Human-machine interface panels with segmented or character LCDs use the PIC24FJ256GA108T-I/PT because of its 256 KB Flash supporting full emWin or proprietary GUI stacks, 16 KB SRAM backing display buffers, and PPS routing five 16-bit timer PWMs to multiple backlight and contrast control pins. The 32 MHz core drives SPI TFT controllers at 32 MHz SPI clock while updating touch sensing via dedicated timers. Five 16-bit timers can drive eight-channel capacitive-touch scanning with no additional silicon. The TQFP-80 12x12 mm footprint is hand-solderable for prototype builds and reflow-compatible for volume production.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC24FJ256GA108T-I/PT — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC24FJ256GA108-I/PT | PIC24FJ128GA108-I/PT | PIC24FJ192GA108T-I/PT | PIC24FJ256DA206-I/PT | PIC24FJ192GB108-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-80 (12x12 mm) | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same |
| Flash | 256 KB | 256 KB | 128 KB | 192 KB | 256 KB | 192 KB |
| SRAM | 16 KB | 16 KB | 8 KB | 16 KB | 16 KB | 16 KB |
| Max CPU Speed | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| USB Controller | No | No | No | No | No | USB 2.0 OTG integrated |
| LCD Driver | No | No | No | No | 96 segments integrated | No |
| Communication Interfaces | 3x I2C, 3x SPI, 4x UART | 3x I2C, 3x SPI, 4x UART | 3x I2C, 3x SPI, 4x UART | 3x I2C, 3x SPI, 4x UART | 3x I2C, 3x SPI, 4x UART | 3x I2C, 3x SPI, 4x UART |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| RoHS / Lead-Free | Yes | Yes | Yes | Yes | Yes | Yes |
Ключевые отличия
- Same silicon, but T/R packaging variant for SMT assembly (против PIC24FJ256GA108-I/PT)
- More Flash at same package footprint (против PIC24FJ128GA108-I/PT)
- More peripherals at same footprint (против PIC24FJ256DA206-I/PT)
Заметки по проектированию
Decouple every VDD pin with a 100 nF X7R ceramic placed within 3 mm of the pin, plus a bulk 10 uF tantalum or aluminum polymer cap near the device. Provide a separate 100 nF cap on AVDD tied to AVSS to minimize ADC reference noise. For deep-sleep operation, drive MCLR high before entering Sleep mode to avoid unintended resets and ensure the RTCC oscillator keeps running to enable calendar wake-ups.
Route AVSS as a separate ground island that joins the digital VSS only at a single point under the IC's exposed pad or nearest VSS pin. Keep analog traces away from switching nodes and clamp diodes. PPS signal assignments should be planned during PCB layout so high-speed peripherals (SPI, UART) are routed on short, impedance-controlled paths; revisit the pinout after board placement to avoid crossing noisy traces.
Estimated: at 32 MHz CPU clock with all peripherals active, core current draw is approximately 15-20 mA at 3.3V - a 10% linear regulator with adequate headroom is required. Do not exceed VDD+0.3V on any digital I/O pin; do not draw more than 25 mA combined from any single VDD/VSS pair. Configuration bits (FOSC, FWDT, WINDIS, etc.) must be set before code execution - leave a valid configuration pragma in every project, or use MPLAB X default configuration macros.
Place the programming/debug connector (ICSP) on the same board edge as the MCU with short, parallel traces for PGC/PGD to ensure reliable in-circuit programming. Add a 4.7 kohm pull-up to VDD on MCLR if not using a supervisor. For USB-equipped variants, route D+/D- as a 90 ohm differential pair with no stubs.
Информация о соответствии
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - automotive body-electronics designs should use AEC-Q100 variants in the family.
