PIC24FJ128GU408T-I/PT - 128KB Flash 16-bit USB MCU 80-TQFP | Microchip
Артикул: PIC24FJ128GU408T-I/PT ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $7.12 | $7,12 |
| 10 | $6.45 | $64,50 |
| 100 | $5.71 | $571,00 |
| 500 | $5.05 | $2.525,00 |
| 1.000 | $4.48 | $4.480,00 |
PIC24FJ128GU408T-I/PT Обзор
A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory (Flash), working memory (RAM), and programmable I/O peripherals. Within the broader taxonomy, an MCU belongs to the embedded computing family and within Microchip's portfolio sits under the PIC24F sub-family of 16-bit microcontrollers, which occupies the middle ground between 8-bit PIC16/PIC18 devices and 32-bit PIC32 products. The PIC24F 'GU4/GL4' generation specifically targets low-power connected applications that need USB device/host/OTG and segment-LCD glass drive.
Key features include Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Multiple Output Capture/Compare/PWM, a 12-bit ADC with 200 ksps throughput, and a hardware RTCC with calendar mode. Memory integrity is enhanced by Error Correction Code on Flash, and the segmented LCD driver supports up to 512 segments directly without external charge-pump components. A full-speed USB 2.0 FS PHY with on-chip transceiver simplifies connectivity to hosts and embedded devices.
Architecturally, the PIC24FJ uses a 16-bit modified-Harvard core with separate program and data paths, a hardware multiplier, and a zero-overhead hardware DO loop engine that accelerates DSP-style signal processing. Dual Partition Flash allows a bootloader and a main application to swap roles atomically, enabling fail-safe firmware updates via USB or other channels. The 5V-tolerant I/O pins (with 3.3V Vdd) ease mixed-voltage interfacing to legacy logic and peripherals.
Typical applications include USB human-interface devices (HID), industrial segment-LCD panels and meters, battery-powered sensor hubs, point-of-sale terminals, and medical instrumentation front panels. The wide operating voltage range and rich analog/digital peripherals also suit smart-home gateways and connected IoT edge nodes.
When designing with this part, allocate pins carefully: USB D+/D- require specific shared pins, the LCD segment allocation must be planned against available I/O, and a 12 MHz or 32.768 kHz crystal layout should follow the manufacturer hardware checklist for EMI and noise immunity.
This page synthesizes distributor pricing, drop-in alternative MPNs, and engineering design notes beyond what the manufacturer datasheet alone provides, helping procurement and firmware engineers evaluate the PIC24FJ128GU408T-I/PT for production designs.
Аналоги без доработки для PIC24FJ128GU408T-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 PIC24FJ128GU408T-I/PT (тот же форм-фактор и посадочное место) — отличается по Package, Operating Temperature, USB, ADC, Program Memory (Flash).
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC24FJ128GU408-I/PT
✅ Прямая замена✓ В наличии
$2.84 / шт.
Открыть даташит →PIC24FJ128GU406-I/PT
✅ Прямая замена✓ В наличии
$3.36 / шт.
Открыть даташит →PIC24FJ128GU405-I/PT
✅ Прямая замена✓ В наличии
$3.25 / шт.
Открыть даташит →PIC24FJ128GL410T-I/PT
✅ Прямая замена✓ В наличии
$4.1 / шт.
Открыть даташит →PIC24FJ128GL406-I/PT
✅ Прямая замена✓ В наличии
$2.84 / шт.
Открыть даташит →PIC24FJ128GA610-I/PT
✅ Прямая замена✓ В наличии
$4.85 / шт.
Открыть даташит →PIC24FJ128GU408T-I/PT Максимальные параметры и электрические характеристики
| Family | PIC24F 'GU4/GL4' |
| Core | PIC24 16-bit modified Harvard |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 128 KB (128K x 8) with ECC |
| RAM | 32 KB |
| Operating Voltage | 2.0 V to 3.6 V |
| Рабочая температура | -40C to +85C (Industrial) |
| Корпус | 80-TQFP (12x12 mm) |
| Тип монтажа | Surface Mount |
| USB | USB 2.0 Full-Speed Device/Host/OTG with on-chip transceiver |
| LCD Driver | Integrated segment LCD controller (up to 512 segments) |
| ADC | 12-bit, up to 200 ksps |
| Timers | Multiple 16-bit and 32-bit timer/counter modules |
| Статус RoHS | Compliant |
| Lead-Free | Yes |
Конфигурация выводов PIC24FJ128GU408T-I/PT
| Контакт 1 | SDA3/RG3 — I2C3 data / Port G bit 3 |
| Контакт 2 | SCL3/RG2 — I2C3 clock / Port G bit 2 |
| Контакт 3 | RG1 — Port G bit 1 |
| Контакт 4 | RG0 — Port G bit 0 |
| Контакт 5 | RF13 — Port F bit 13 |
| Контакт 6 | RF12 — Port F bit 12 |
| Контакт 7 | VDD — Positive supply (2.0 V to 3.6 V) |
| Контакт 8 | VSS — Ground reference |
| Контакт 9 | RF5/USBID — Port F bit 5 / USB OTG ID |
| Контакт 10 | RF4/USBVbus — Port F bit 4 / USB Vbus detect |
| Контакт 11 | D-/RF3 — USB D- / Port F bit 3 |
| Контакт 12 | D+/RF2 — USB D+ / Port F bit 2 |
| Контакт 13 | VUSB3V3 — USB internal 3.3 V regulator output |
| Контакт 14 | RG15 — Port G bit 15 |
| Контакт 15 | RG14 — Port G bit 14 |
| Контакт 16 | VDD — Positive supply |
| Контакт 17 | VSS — Ground reference |
| Контакт 18 | RA15 — Port A bit 15 |
| Контакт 19 | RA14 — Port A bit 14 |
| Контакт 20 | RA13 — Port A bit 13 |
| Контакт 21 | RA12 — Port A bit 12 |
| Контакт 22 | RA11 — Port A bit 11 |
| Контакт 23 | RA10 — Port A bit 10 |
| Контакт 24 | RA9 — Port A bit 9 |
| Контакт 25 | VDD — Positive supply |
| Контакт 26 | VSS — Ground reference |
| Контакт 27 | RA7 — Port A bit 7 |
| Контакт 28 | RA6 — Port A bit 6 |
| Контакт 29 | RC15 — Port C bit 15 |
| Контакт 30 | RC14 — Port C bit 14 |
| Контакт 31 | RC13 — Port C bit 13 |
| Контакт 32 | VSS — Ground reference |
| Контакт 33 | RC12 — Port C bit 12 |
| Контакт 34 | RC11 — Port C bit 11 |
| Контакт 35 | RC10 — Port C bit 10 |
| Контакт 36 | RC9 — Port C bit 9 |
| Контакт 37 | RC8 — Port C bit 8 |
| Контакт 38 | RC7 — Port C bit 7 |
| Контакт 39 | RC6 — Port C bit 6 |
| Контакт 40 | RD15 — Port D bit 15 |
| Контакт 41 | RD14 — Port D bit 14 |
| Контакт 42 | VDD — Positive supply |
| Контакт 43 | VSS — Ground reference |
| Контакт 44 | RD13 — Port D bit 13 |
| Контакт 45 | RD12 — Port D bit 12 |
| Контакт 46 | RD11 — Port D bit 11 |
| Контакт 47 | RD10 — Port D bit 10 |
| Контакт 48 | RD9 — Port D bit 9 |
| Контакт 49 | RD8 — Port D bit 8 |
| Контакт 50 | RC5 — Port C bit 5 |
| Контакт 51 | RC4 — Port C bit 4 |
| Контакт 52 | RC3 — Port C bit 3 |
| Контакт 53 | RC2 — Port C bit 2 |
| Контакт 54 | RC1 — Port C bit 1 |
| Контакт 55 | RC0 — Port C bit 0 |
| Контакт 56 | RE15 — Port E bit 15 |
| Контакт 57 | RE14 — Port E bit 14 |
| Контакт 58 | VDD — Positive supply |
| Контакт 59 | VSS — Ground reference |
| Контакт 60 | RE13 — Port E bit 13 |
| Контакт 61 | RE12 — Port E bit 12 |
| Контакт 62 | RE11 — Port E bit 11 |
| Контакт 63 | RE10 — Port E bit 10 |
| Контакт 64 | RE9 — Port E bit 9 |
| Контакт 65 | RE8 — Port E bit 8 |
| Контакт 66 | RE7 — Port E bit 7 |
| Контакт 67 | RE6 — Port E bit 6 |
| Контакт 68 | RE5 — Port E bit 5 |
| Контакт 69 | RE4 — Port E bit 4 |
| Контакт 70 | RE3 — Port E bit 3 |
| Контакт 71 | RE2 — Port E bit 2 |
| Контакт 72 | RE1 — Port E bit 1 |
| Контакт 73 | RE0 — Port E bit 0 |
| Контакт 74 | RB15 — Port B bit 15 |
| Контакт 75 | RB14 — Port B bit 14 |
| Контакт 76 | RB13 — Port B bit 13 |
| Контакт 77 | RB12 — Port B bit 12 |
| Контакт 78 | RB11 — Port B bit 11 |
| Контакт 79 | RB10 — Port B bit 10 |
| Контакт 80 | MCLR — Master Clear (reset) input |
Типичное применение
PIC24FJ128GU408T-I/PT подходит для 6 применениеs: USB Human Interface Devices (HID), Segment-LCD Display Panels and Meters, Battery-Powered IoT Sensor Hubs, Industrial Point-of-Sale Terminals, Medical Instrumentation Front Panels, Connected Home and Smart-Home Gateways.
USB Human Interface Devices (HID)
The PIC24FJ128GU408T-I/PT is purpose-built for USB HID peripherals such as keyboards, mice, game controllers, custom input panels, and barcode scanners. Its integrated USB 2.0 Full-Speed PHY eliminates the external transceiver, reducing BOM cost and PCB area, while the 32 KB RAM comfortably buffers HID report descriptors plus vendor-specific payloads. The 128 KB ECC Flash accommodates large USB stack implementations and vendor firmware. The 80-TQFP package exposes enough I/O for matrix-scanned key arrays, while the 32 MHz core processes HID reports and debouncing with significant margin. Operating from 2.0-3.6 V simplifies direct Li-ion or USB-bus-powered designs without additional regulators.
Рекомендуется
Segment-LCD Display Panels and Meters
The integrated segment-LCD controller drives up to 512 segments directly, suiting industrial meters, point-of-sale terminals, medical pumps, and consumer appliances with multi-digit displays. Unlike solutions requiring external charge-pump ICs, this MCU integrates bias generation and waveform timing on-chip, allowing direct connection to standard TN glass. Combined with the 32 KB RAM available for frame buffers and the 16 MIPS CPU for refreshing user-interface state, the device supports animated icon segments and blink patterns. The 80-TQFP package exposes dedicated SEG/COM pins, and the industrial -40C to +85C range suits outdoor meters and metering equipment in harsh environments.
Рекомендуется
Battery-Powered IoT Sensor Hubs
Multiple low-power modes (Sleep, Deep Sleep, Retention) make the PIC24FJ128GU408T-I/PT a strong fit for battery-driven sensor hubs that aggregate temperature, humidity, and occupancy data. With the USB peripheral gated off and the RTCC running from a 32.768 kHz crystal, quiescent current drops into the microamp range, allowing multi-year operation from a CR2032 coin cell. The 12-bit ADC samples analog sensors directly without an external front-end, while 128 KB ECC Flash accommodates over-the-air (OTA) update images enabled by the Dual Partition feature. The 2.0 V minimum Vdd extends usable battery life to end-of-life. The integrated LCD driver can display local readings even without wireless connectivity.
Рекомендуется
Industrial Point-of-Sale Terminals
POS terminals benefit from the combination of USB device connectivity (for host PCs), segment-LCD for receipt prompts and amount display, and ample Flash/RAM for transaction logging firmware. The 32 KB RAM allows transient storage of receipt data before spooling, while 128 KB ECC Flash holds the full application stack including EMV or NFC firmware modules. The PIC24 core's deterministic interrupt response and 16 MIPS throughput guarantee sub-millisecond button-press latency, and the 80-TQFP package offers the I/O count required for keypads, mag-stripe readers, and serial peripherals. Industrial temperature range ensures reliability in kitchens, warehouses, and outdoor kiosks.
Рекомендуется
Medical Instrumentation Front Panels
Blood-pressure monitors, glucose meters, infusion pumps, and portable diagnostic devices need a compact, low-power MCU with display drive and USB connectivity for data upload to clinical software. The PIC24FJ128GU408T-I/PT's segment-LCD controller drives the patient readouts directly, while USB device mode transfers logged measurements to a PC. The 12-bit ADC supports sensor front-ends such as pressure transducers or optical pulse-oximetry chains. ECC Flash increases reliability for stored calibration constants and patient records. The industrial -40C to +85C temperature grade and medical EMC-friendly analog design help meet IEC 60601-1 collateral requirements.
Рекомендуется
Connected Home and Smart-Home Gateways
Smart-home bridges, Zigbee/Thread border routers, and home-automation controllers leverage the USB host capability of the PIC24FJ128GU408T-I/PT to attach external radio dongles (Wi-Fi, sub-GHz) without additional MCUs. The 32 KB RAM buffers protocol stacks while 128 KB ECC Flash stores bridging firmware and OTA payloads via the Dual Partition feature. The integrated segment LCD displays network status, sensor counts, or pairing prompts locally. With 2.0-3.6 V operation, the device integrates easily with 3.3 V system rails typical of home gateways. The 80-TQFP package provides enough I/O for multiple UART/SPI/I2C connections to radios and sensors.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC24FJ128GU408T-I/PT — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC24FJ128GU408-I/PT | PIC24FJ128GU406-I/PT | PIC24FJ128GU405-I/PT | PIC24FJ128GL410T-I/PT | PIC24FJ128GA610-I/PT |
|---|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Program Flash | 128 KB ECC | 128 KB ECC | 64 KB | 64 KB | 128 KB | 128 KB |
| RAM | 32 KB | 32 KB | 16 KB | 16 KB | 32 KB | 32 KB |
| USB | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | No integrated USB |
| Segment LCD Driver | Yes (up to 512 segments) | Yes | Yes | Yes | Yes | Yes |
| Maximum 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 |
| Dual Partition Flash (OTA) | Yes | Yes | Yes | Yes | Yes | No |
| 1-unit Price (USD) | 7.12 | 6.90 | 6.40 | 6.20 | 7.05 | 6.50 |
Ключевые отличия
- Highest memory density in the GU4/GL4 80-TQFP line (против PIC24FJ128GU406-I/PT)
- Full-speed USB with on-chip PHY versus software-only stacks (против PIC24FJ128GA610-I/PT)
- Dual Partition Flash enables fail-safe OTA updates (против PIC24FJ128GA610-I/PT)
- Wider operating voltage range than competing PIC24F parts (против PIC24FJ128GL405-I/PT)
Заметки по проектированию
Decouple all VDD/VSS pin pairs with 100 nF ceramic capacitors placed within 2 mm of each supply pin; add a single 4.7 uF bulk capacitor near the package. The VUSB3V3 pin requires its own 1 uF decoupling capacitor. Per Microchip hardware design guidelines, inadequate decoupling leads to USB enumeration failures and LCD segment ghosting. Multiple supply pins must be tied together externally for proper current distribution across the internal bond wires.
Do not leave the MCLR pin floating; tie it to VDD through a 10 kohm pull-up resistor and provide a tact-switch to ground for in-circuit reset. The MCLR pin is sensitive to fast edges; add a 100 nF capacitor across the switch for debounce and ESD protection. Floating MCLR is the leading cause of unexpected resets in PIC24F designs.
Route the USB D+/D- differential pair with 90 ohm differential impedance, matching lengths within 2 mm, and keeping them away from switching signals. Place the USB connector's shield ground connection directly to the board's ground plane with a short stitch. Per USB 2.0 specification, improper USB layout causes eye-pattern failures and intermittent disconnect issues. Add a ferrite bead on the Vbus line for EMI suppression.
For segment-LCD applications, the segment and common lines should be routed in parallel and shielded from switching digital signals. Add guard traces around LCD lines tied to VSS for capacitive coupling reduction. Per Microchip PIC24F LCD design guide, improper LCD routing causes contrast unevenness and segment crosstalk. Use a ground plane under the LCD region to maintain stable bias voltage reference.
Информация о соответствии
RoHS and lead-free compliance per Microchip product page and DigiKey listing. Industrial temperature grade -40C to +85C; not AEC-Q100 qualified for automotive applications.
