PIC24FJ192GB108T-I/PT - 16-Bit 32MHz USB OTG MCU, 192KB Flash | Microchip
MPN: PIC24FJ192GB108T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.85 | $7.85 |
| 10 | $7.05 | $70.50 |
| 100 | $6.32 | $632.00 |
| 500 | $5.68 | $2,840.00 |
| 1,000 | $5.1 | $5,100.00 |
PIC24FJ192GB108T-I/PT Overview
A 16-bit microcontroller is an embedded processor core that executes instructions on 16-bit-wide data paths, typically based on a RISC architecture. The PIC24F family belongs to Microchip's broader 16-bit MCU hierarchy: PIC24F -> PIC24 -> dsPIC33 (with DSP) -> 16-bit microcontrollers -> microcontrollers -> embedded semiconductors. This 'F' family emphasizes ultra-low-power eXtreme Low Power (XLP) operation with standby current below 100nA, making it a power-optimized mid-tier option between 8-bit PIC16/PIC18 MCUs and high-performance 32-bit PIC32 devices.
Key differentiating features of this part include: native USB OTG controller (host + device role), 16KB RAM for large data buffering, three I2C and three SPI peripherals plus four UARTs for rich connectivity, 23 independent timers, and rich analog with 10/12-bit ADC. The 80-TQFP footprint also exposes the parallel master port, allowing connection to external bus peripherals or graphics controllers. The USB OTG capability is the primary reason engineers choose GB-series PIC24F parts over the otherwise-similar GA-series that lacks USB.
The part uses Microchip's modified Harvard architecture with a 16-bit instruction word and 24-bit data path, providing up to 16 MIPS performance at 32MHz / 3.3V. XLP technology combined with multiple idle and sleep modes allows battery-powered products to extend operating life; the <100nA standby current enables years of operation from a coin cell when the MCU periodically wakes to sample sensors.
Typical applications include USB peripherals (HID, CDC, mass storage), portable medical devices (blood-glucose meters, pulse oximeters), industrial data loggers with USB connectivity, consumer electronics with USB charging and data exchange, and embedded HMI/graphics products that require both USB and the parallel master port.
When designing with this part, ensure the on-chip voltage regulator is properly decoupled (the ENVREG pin requires an external capacitor per the datasheet). Plan oscillator and PLL configuration carefully because the 32MHz instruction rate derives from the internal FRC or external crystal/clock, and USB Full Speed (12Mbps) requires a 48MHz USB clock domain. For low-power designs, use the deep-sleep and RTCC modes to drop standby current below 100nA.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet. The PIC24FJ192GB108T-I/PT is part of the PIC24FJxxxGB1xx family with USB OTG and is supplied on tape and reel for high-volume SMT assembly.
Drop-in alternatives for PIC24FJ192GB108T-I/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC24FJ192GB108T-I/PT (same form factor and footprint) — differing in Core Architecture, Timers, Standby Current, Package, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ192GB108-I/PT
✅ Drop-In✓ In Stock
$4.88 / Unit
View Datasheet →PIC24FJ128GB108-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ192GA108T-I/PT
✅ Drop-In✓ In Stock
$5.42 / Unit
View Datasheet →PIC24FJ192GA110T-I/PT
✅ Drop-In✓ In Stock
$4.01 / Unit
View Datasheet →PIC24FJ256GA108-I/PT
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →PIC24FJ128GA108-I/PT
✅ Drop-In✓ In Stock
$3.78 / Unit
View Datasheet →PIC24FJ192GB108T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit PIC24F (modified Harvard, RISC) |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 192 KB (65.5K x 24 words) |
| RAM | 16 KB |
| Operating Voltage | 3.3 V typical (2.0V-3.6V range) |
| USB Interface | USB On-The-Go (OTG), Full-Speed 12 Mbps |
| I2C Peripherals | 3 |
| SPI Peripherals | 3 |
| UART Peripherals | 4 |
| Timers | 23 independent |
| Operating Temperature | -40C to +85C (Industrial) |
| Standby Current (XLP) | <100 nA |
| Package | 80-TQFP (12x12 mm) |
| Pin Count | 80 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC24FJ192GB108T-I/PT 80-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for PIC24FJ192GB108T-I/PT (80-tqfp (12x12 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC24FJ192GB108T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC24FJ192GB108T-I/PT is suitable for 6 applications: USB HID / CDC Peripheral Devices, Portable Medical Instruments, Industrial Data Loggers with USB, Consumer Electronics with USB Charging, Embedded HMI / Graphics Controllers, IoT Sensor Hubs and Bridges.
USB HID / CDC Peripheral Devices
The PIC24FJ192GB108T-I/PT fits USB Human Interface Device and Communication Device Class products because its integrated USB OTG Full-Speed controller natively enumerates as HID, CDC, or vendor-class without an external PHY. The 16KB RAM buffers USB descriptors plus application data, while 192KB Flash accommodates composite USB stacks. Compared to UART-only PIC24F GA parts, the GB-series USB saves an external bridge chip like the FT232, cutting BOM cost and PCB area by roughly $2-3 and 100mm^2.
Recommended
Portable Medical Instruments
Battery-powered medical devices such as blood-glucose meters, pulse oximeters, and portable ECG monitors benefit from the PIC24FJ192GB108T-I/PT's eXtreme Low Power (XLP) standby current below 100nA. The MCU wakes on RTCC alarm or button interrupt, samples a sensor, optionally transfers data over USB, then returns to deep-sleep, enabling multi-year coin-cell operation. The 16-bit ADC and 16KB RAM handle local data buffering for offline analysis.
Recommended
Industrial Data Loggers with USB
Industrial USB data loggers use the PIC24FJ192GB108T-I/PT to record sensor data to onboard Flash or an external SD card over SPI, then dump results to a host PC over USB CDC. The 32MHz core sustains 16 MIPS, enough for 1kHz multi-channel sampling with on-the-fly averaging. The -40C to +85C industrial temperature rating supports factory-floor, outdoor, and cold-chain applications without derating.
Recommended
Consumer Electronics with USB Charging
USB-charging consumer products use the PIC24FJ192GB108T-I/PT to negotiate USB BC 1.2 charging profiles, monitor battery state, and present a USB device interface for firmware updates. The four UART peripherals support Bluetooth, Wi-Fi, or display modules simultaneously, while 3x SPI and 3x I2C drive sensors and peripherals. 192KB Flash accommodates USB stack plus full feature firmware in a single chip.
Recommended
Embedded HMI / Graphics Controllers
The PIC24FJ192GB108T-I/PT exposes a Parallel Master Port (PMP) on the 80-TQFP package, enabling direct connection to TFT LCD controllers or external graphics memory. Combined with USB OTG, an HMI panel can accept firmware updates and configuration files from a USB stick. The 32MHz core and 16KB RAM drive QVGA (320x240) monochrome displays at acceptable frame rates for menu-driven interfaces.
Recommended
IoT Sensor Hubs and Bridges
IoT gateways and sensor bridges use the PIC24FJ192GB108T-I/PT to aggregate UART, SPI, and I2C sensor data and forward it over USB to a host processor or cloud modem. The 23 independent timers support PWM-driven actuator control alongside data acquisition. With XLP standby below 100nA, battery-powered sensor hubs can last years on a single AA cell while periodically reporting over USB when docked.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ192GB108T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ192GB108-I/PT | PIC24FJ128GB108-I/PT | PIC24FJ192GA108T-I/PT | PIC24FJ192GA110T-I/PT | PIC24FJ256GA108-I/PT | PIC24FJ128GA108-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-TQFP (12x12) | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same |
| Flash Memory | 192 KB | 192 KB | 128 KB | 192 KB | 192 KB | 256 KB | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| USB OTG | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | No | No | No | No |
| Core 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 | 32 MHz / 16 MIPS |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Packaging Format | Tape & Reel | Tray | Tray | Tape & Reel | Tape & Reel | Tray | Tray |
Key Differentiators
- Integrated USB OTG Full-Speed controller (vs PIC24FJ192GA108T-I/PT)
- Highest-density Flash in the GB1xx family (vs PIC24FJ128GB108-I/PT)
- Industrial temperature range with XLP (vs PIC24FJ192GA108T-I/PT)
Design Notes
The PIC24FJ192GB108T-I/PT supports three core supply domains: VDD (digital I/O and core), VDDCORE (regulated 1.8V internal from VDD via on-chip regulator), and VUSB (USB transceiver 3.3V). The ENVREG pin must be connected with a 10uF + 0.1uF decoupling pair per the datasheet to stabilize the internal regulator. For USB Host mode, VUSB must be sourced from a 3.3V LDO capable of at least 50mA. Estimated: peak VDD current at 32MHz with all peripherals active is roughly 25mA, so a 100mA LDO gives ample headroom.
Place the 12 MHz primary crystal within 5mm of the OSC1/OSC2 pins, with the load capacitors grounded to a quiet ground island near the MCU. The USB DP/DM traces must be 90-ohm differential with length-matched within 2mm and routed over a continuous ground plane. Keep the VUSB decoupling capacitor within 3mm of the VUSB pin. Per the Microchip PIC24FJ USB design checklist, violating these rules causes USB Full-Speed signal-integrity failures and intermittent enumeration.
Do not leave the MCLR pin floating - either tie it to VDD through a 10k pull-up or drive it with the supervisor reset IC, because noise on MCLR can cause unpredictable resets. Configure unused I/O pins as digital outputs driven low, not as inputs, to minimize current leakage in deep-sleep. For USB, the 48 MHz USB clock must come from the primary oscillator or 96 MHz PLL, not from the internal 8 MHz FRC, or USB Full-Speed enumeration will fail at low VDD.
Estimated: at 32MHz with all peripherals active, core current is about 25mA from VDD = 3.3V, dissipating roughly 82.5 mW in the MCU. The 80-TQFP package has a typical theta_JA of about 50 C/W on a standard JEDEC 4-layer test board, yielding a junction temperature rise of only ~4C above ambient. Even at +85C ambient the junction remains well under the +125C absolute maximum. No external heatsink or copper pour beyond standard layout is required.
The Parallel Master Port (PMP) on the 80-TQFP can drive external bus peripherals up to 32 MHz but the traces should be length-matched within 5mm and series-terminated with 22-33 ohm resistors near the source for bus lengths over 50mm. For SD card interfaces over SPI, keep the SPI clock below 20 MHz and place a 100k pull-up on the CS line to prevent bus contention during MCU reset. SD card hot-plug events require software debouncing of the CD pin.
Compliance Information
RoHS and lead-free per Microchip product page; halogen-free status not explicitly stated. Not AEC-Q100 qualified - not intended for automotive safety-critical applications.
