PIC24FJ128GB106T-I/PT - 16-bit 32MHz USB OTG MCU, 128KB Flash | Microchip
MPN: PIC24FJ128GB106T-I/PT ✓ نشطPIC24FJ128GB106T-I/PT نظرة عامة
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one die. The PIC24F family sits between 8-bit PIC MCUs and dsPIC digital signal controllers, offering 16-bit data paths, modified Harvard architecture, and a wide peripheral set. USB OTG extends plain USB by allowing two OTG-capable devices to negotiate host or device roles and exchange data peer-to-peer without a PC, which is why MCUs with OTG are preferred for embedded peripherals such as data loggers, instrumentation, and point-of-sale terminals.
Key features include 52 general-purpose I/O pins, three I2C, three SPI, four UART channels, 23 independent timers, and a real-time clock/calendar. The integrated USB 2.0 full-speed OTG controller adds a session request protocol (SRP) and host negotiation protocol (HNP) engine. The nanoWatt power management hardware provides multiple idle, sleep, and deep-sleep modes that drop the standby current below 100 nA, making the part attractive for battery-backed and energy-harvesting products.
The PIC24FJ128GB106 architecture uses a 16-bit modified Harvard core with a 24-bit instruction word, allowing single-cycle fetches and deterministic interrupt response. Its CTMU (Charge Time Measurement Unit) supports touch sensing, capacitive proximity detection, and time-of-flight measurements without an external ADC. Two Analog Comparators and a 10-bit 1.1 Msps ADC with up to 16 input channels round out the analog subsystem.
Typical applications include USB peripherals (HID-class devices, CDC virtual COM ports, mass storage), low-power wireless sensor nodes with USB charging, industrial data loggers, medical point-of-care instruments, and consumer audio accessories that stream PCM over USB. The combination of large RAM (16 KB), ample flash (128 KB), and OTG makes it well-suited to embedded hosts that read files from a USB flash drive and present them on a local display.
Design consideration: the USB D+/D- traces require 90-ohm differential impedance, and VUSB needs a 100 nF plus 4.7 uF local bypass network per the USB specification. Place the 32 kHz primary oscillator crystal within 5 mm of the SOSCO/SOSCI pins to keep the RTCC accurate and the nanoWatt current low.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes that go beyond the manufacturer datasheet so you can evaluate, source, and qualify the PIC24FJ128GB106T-I/PT for production.
بدائل مباشرة لـ PIC24FJ128GB106T-I/PT — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC24FJ128GB106T-I/PT (نفس عامل الشكل والبصمة) — يختلف في Package, ADC, MSL Level, Timers, Operating Temperature.
PIC24FJ128GB106-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC24FJ256GB106-I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC24FJ128GA006-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC24FJ128GA106T-I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC24FJ128DA106T-I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC24FJ192GB106-I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC24FJ128GB106T-I/PT الحدود القصوى والخصائص الكهربائية
| Series | PIC24FJ |
| Core | PIC24F (16-bit modified Harvard, 24-bit instruction word) |
| Max CPU Speed | 32 MHz (16 MIPS) |
| Program Flash | 128 KB (43K x 24 words) |
| RAM | 16 KB |
| USB Interface | USB 2.0 Full-Speed OTG with SRP and HNP |
| GPIO | 52 |
| UART | 4 |
| SPI | 3 |
| I2C | 3 |
| Timers | 23 independent |
| ADC | 10-bit, 1.1 Msps, up to 16 channels |
| RTCC | Yes (with 32 kHz secondary oscillator) |
| Analog Comparators | 2 |
| CTMU | Yes (Charge Time Measurement Unit for touch/proximity) |
| Operating Voltage | 2.0 V to 3.6 V |
| Standby Current | <100 nA (nanoWatt deep sleep) |
| درجة حرارة التشغيل | -40 C to +85 C (industrial) |
| العلبة | 64-pin TQFP (PT) 10x10x1 mm |
| نوع التركيب | Surface Mount |
| مستوى MSL | 3 (168 hours) |
| حالة RoHS | Compliant |
تكوين أطراف PIC24FJ128GB106T-I/PT
| دبوس 1 | RC1 — GPIO / I2C SCL2 / UART RX2 |
| دبوس 2 | RC2 — GPIO / I2C SDA2 / UART TX2 |
| دبوس 3 | RC3 — GPIO / SPI SCK2 / I2C SCL3 |
| دبوس 4 | RC4 — GPIO / SPI SDI2 / I2C SDA3 |
| دبوس 5 | RC5 — GPIO / SPI SDO2 |
| دبوس 6 | VSS — Ground |
| دبوس 7 | RC6 — GPIO / UART TX1 |
| دبوس 8 | RC7 — GPIO / UART RX1 |
| دبوس 9 | RC8 — GPIO / UART TX2 |
| دبوس 10 | RC9 — GPIO / UART RX2 |
| دبوس 11 | RG6 — GPIO |
| دبوس 12 | RG7 — GPIO |
| دبوس 13 | RG8 — GPIO |
| دبوس 14 | MCLR — Master Clear (reset, active low) |
| دبوس 15 | RG9 — GPIO |
| دبوس 16 | VDD — Positive supply 2.0 V to 3.6 V |
| دبوس 17 | OSC1 — Primary oscillator input |
| دبوس 18 | OSC2 — Primary oscillator output |
| دبوس 19 | SOSCO — Secondary oscillator output (32 kHz) |
| دبوس 20 | SOSCI — Secondary oscillator input (32 kHz) |
| دبوس 21 | VDD — Positive supply 2.0 V to 3.6 V |
| دبوس 22 | VSS — Ground |
| دبوس 23 | RB0 — GPIO / AN0 / CTMU |
| دبوس 24 | RB1 — GPIO / AN1 / CTMU |
| دبوس 25 | RB2 — GPIO / AN2 / CTMU |
| دبوس 26 | RB3 — GPIO / AN3 / CTMU |
| دبوس 27 | RB4 — GPIO / AN4 / CTMU |
| دبوس 28 | RB5 — GPIO / AN5 / CTMU |
| دبوس 29 | RB6 — GPIO / AN6 / CTMU / ICDPGEC2 |
| دبوس 30 | RB7 — GPIO / AN7 / CTMU / ICDPGED2 |
| دبوس 31 | RB8 — GPIO / AN8 / CTMU |
| دبوس 32 | RB9 — GPIO / AN9 / CTMU |
| دبوس 33 | RB10 — GPIO / AN10 / CTMU |
| دبوس 34 | RB11 — GPIO / AN11 / CTMU |
| دبوس 35 | RB12 — GPIO / AN12 / CTMU |
| دبوس 36 | RB13 — GPIO / AN13 / CTMU |
| دبوس 37 | RB14 — GPIO / AN14 / CTMU |
| دبوس 38 | RB15 — GPIO / AN15 / CTMU |
| دبوس 39 | VSS — Ground |
| دبوس 40 | VDD — Positive supply 2.0 V to 3.6 V |
| دبوس 41 | RD0 — GPIO / SPI SDO1 |
| دبوس 42 | RD1 — GPIO / SPI SCK1 |
| دبوس 43 | RD2 — GPIO / SPI SDI1 |
| دبوس 44 | RD3 — GPIO / SPI SS1 |
| دبوس 45 | RC12 — GPIO |
| دبوس 46 | RC13 — GPIO |
| دبوس 47 | RC14 — GPIO |
| دبوس 48 | RC15 — GPIO |
| دبوس 49 | RD4 — GPIO |
| دبوس 50 | RD5 — GPIO |
| دبوس 51 | RD6 — GPIO |
| دبوس 52 | RD7 — GPIO |
| دبوس 53 | RD8 — GPIO |
| دبوس 54 | RD9 — GPIO |
| دبوس 55 | RD10 — GPIO |
| دبوس 56 | RD11 — GPIO |
| دبوس 57 | RD12 — GPIO |
| دبوس 58 | RD13 — GPIO |
| دبوس 59 | RD14 — GPIO |
| دبوس 60 | RD15 — GPIO |
| دبوس 61 | VSS — Ground |
| دبوس 62 | VDD — Positive supply 2.0 V to 3.6 V |
| دبوس 63 | D+ — USB D+ data line |
| دبوس 64 | D- — USB D- data line |
التطبيقات النموذجية
PIC24FJ128GB106T-I/PT مناسب لـ 6 التطبيقs: USB HID / CDC Peripheral Devices, Embedded USB Host (Flash Drive Reader), Low-Power Wireless Sensor Nodes, Medical Point-of-Care Instruments, Industrial Data Loggers, Consumer Audio Accessories (USB Audio).
USB HID / CDC Peripheral Devices
The PIC24FJ128GB106T-I/PT is ideal for USB Human Interface Devices and CDC virtual COM ports because the integrated USB 2.0 full-speed OTG transceiver and 16 KB RAM handle enumeration, descriptor handling, and interrupt endpoint traffic without external components. Operating at 16 MIPS, the MCU comfortably sustains polling rates above 1 kHz while leaving cycles for HID report parsing. Place the D+/D- lines as a 90-ohm differential pair with 100 nF plus 4.7 uF local bypass on VUSB, and use the on-chip pull-up resistor to assert DP_FULL_SPEED for bus-powered designs.
موصى به
Embedded USB Host (Flash Drive Reader)
With its USB OTG controller and SRP/HNP engines, the PIC24FJ128GB106T-I/PT can act as a USB host reading files from a flash drive or USB mass-storage device. The 16 KB RAM is sufficient for FAT16/FAT32 sector buffers, while 128 KB of flash comfortably holds the Microchip USB stack plus a small application layer. Power the VBUS pin from the MCU's internal charge pump or an external 5 V boost, and add ESD protection on D+/D- for hot-plug reliability.
موصى به
Low-Power Wireless Sensor Nodes
The PIC24FJ128GB106T-I/PT suits battery-powered sensor nodes because its nanoWatt Deep Sleep mode drops quiescent current below 100 nA while keeping RAM and the RTCC alive. The integrated 10-bit 1.1 Msps ADC handles most sensor reads directly, and the 32 MHz performance lets the MCU wake, sample, transmit via SPI to a sub-GHz radio, and return to sleep within milliseconds. Power budgeting is dominated by the radio, so use the lowest practical clock after wake-up.
موصى به
Medical Point-of-Care Instruments
The PIC24FJ128GB106T-I/PT is well suited to portable diagnostic instruments that need both a USB data port and a low-noise analog front end. The on-chip 10-bit ADC plus two analog conditioners feed the CTMU for impedance measurements, while 16 KB RAM buffers patient data before streaming over USB CDC. Operating from a single Li-ion cell with a 3.3 V LDO, the MCU achieves weeks of standby on a 1000 mAh battery thanks to nanoWatt power gating.
موصى به
Industrial Data Loggers
The PIC24FJ128GB106T-I/PT powers compact industrial data loggers that capture process variables to removable USB media. Its 64-pin TQFP exposes enough GPIO for thermocouples, 4-20 mA loops, and digital inputs, while the four UARTs handle RS-485 multi-drop communication. The MCU's industrial -40 C to +85 C rating and CTMU enable reliable operation in factory floors. Pair with an external RTC or use the on-chip RTCC for timestamping.
موصى به
Consumer Audio Accessories (USB Audio)
The PIC24FJ128GB106T-I/PT streams USB audio class 1.0 PCM at 48 kHz with the integrated full-speed transceiver and 16 KB of buffer RAM, eliminating an external CODEC interface controller. The CTMU and 10-bit ADC add proximity or button sensing for inline headset controls, while the small 64-pin TQFP package fits inline dongle form factors. Power is drawn from the USB bus (5 V) regulated to 3.3 V, and Deep Sleep drops consumption when no audio is active.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC24FJ128GB106T-I/PT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC24FJ128GB106-I/PT | PIC24FJ256GB106-I/PT | PIC24FJ128GA006-I/PT | PIC24FJ128DA106T-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (PT) | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-64 (PT) - same |
| Program Flash | 128 KB | 128 KB | 256 KB (+100 percent) | 128 KB | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| USB Interface | USB 2.0 OTG FS | USB 2.0 OTG FS | USB 2.0 OTG FS | No integrated USB | USB 2.0 OTG FS |
| Max CPU Speed | 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 |
| Standby Current (Deep Sleep) | <100 nA | <100 nA | <100 nA | <100 nA | <100 nA |
| Capacitive Touch (CTMU) | Yes | Yes | Yes | Yes | Yes (with mTouch) |
أبرز الفروقات
- Integrated USB 2.0 full-speed OTG with on-chip PHY (مقابلPIC24FJ128GA006-I/PT)
- 256 KB flash upgrade available in the same TQFP-64 footprint (مقابلPIC24FJ256GB106-I/PT)
- 16 KB RAM provides generous buffers for USB stacks and FAT file systems (مقابلPIC24FJ128GA106T-I/PT)
ملاحظات التصميم
Route the USB D+ and D- lines as a 90-ohm differential pair on the top layer with continuous ground reference beneath them. Keep the trace length under 50 mm and avoid splitting the ground plane under the USB signals. Place a 100 nF plus 4.7 uF local bypass network within 5 mm of the VUSB pin to meet USB inrush current requirements.
Estimated: from a 3.3 V supply at 32 MHz active mode, the PIC24FJ128GB106T-I/PT draws roughly 20 mA; in Deep Sleep this drops below 100 nA. For USB bus-powered designs, derive 3.3 V from VBUS via a 250 mA LDO such as MCP1700 to stay within USB inrush budget. Add a 10 uF bulk capacitor at the LDO output to handle transmit current spikes.
Do not enable the on-chip pull-up on D+ before the firmware has configured the USB module, or the host may see an illegal device connect. When migrating between PIC24FJ128GB106 and GA006 variants, double-check that the USB interrupt vector is properly mapped; the GA006 has no USB module and traps will fire if the firmware is not updated. Always run a factory calibration of the internal fast RC oscillator if the design uses USB, since the baud-rate tolerance exceeds the 1.5 percent allowed by the USB spec.
At industrial temperatures up to +85 C, the TQFP-64 package has a theta_JA of approximately 50 C/W on a standard 2-layer JEDEC test board. Active-mode dissipation of 70 mW yields a 3.5 C rise above ambient, which is negligible. However, at +125 C junction temperatures (automotive variants only) the same dissipation raises junction by 7 C, so verify with real board thermal measurements if pushing near the limits.
معلومات الامتثال
RoHS compliant per Microchip product page. Industrial temperature grade only - automotive variants require different ordering code. Halogen-free per Microchip environmental compliance data.
