PIC24FJ192GB108-I/PT - 192KB Flash USB MCU 80-TQFP | Microchip
MPN: PIC24FJ192GB108-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.42 | $7.42 |
| 10 | $6.78 | $67.80 |
| 100 | $6.05 | $605.00 |
| 500 | $5.41 | $2,705.00 |
| 1,000 | $4.88 | $4,880.00 |
PIC24FJ192GB108-I/PT Overview
A PIC microcontroller (MCU) is a compact integrated circuit containing a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals (timers, UARTs, ADC, communication interfaces). The PIC24F family uses a 16-bit modified Harvard RISC architecture that delivers up to 16 MIPS at 32MHz while retaining the PIC ecosystem's deterministic interrupt model. Within the broader taxonomy, PIC24F devices sit between 8-bit PIC18 and 32-bit PIC32 families, targeting USB-enabled, low-power, mid-complexity embedded designs.
Key features include a full-speed USB 2.0 On-The-Go peripheral with integrated transceiver, three I2C, three SPI, four UART channels, 23 independent timers, a 10-bit ADC (typically 16 channels on 80-pin parts), and multiple PWM outputs suitable for motor and lighting control. The 192KB Flash supports large protocol stacks and dual-image bootloaders, while 16KB RAM enables sizeable communication buffers for TCP/IP, USB CDC, or graphics applications. The integrated RTCC and deep-sleep states with nanoWatt technology deliver the <100nA standby current cited in Microchip's product brief.
Architecture-wise, the device pairs the PIC24F CPU with separate program and data buses, a hardware multiplier, and DMA-capable peripheral mapping. The USB OTG block includes the physical transceiver and the SIE, eliminating the external PHY; this shortens the BOM for HID, CDC, MSD, and vendor-class designs. The 80-pin TQFP exposes up to 65 general-purpose I/O lines, allowing direct interface to TFT displays, capacitive touch controllers, and external memory.
Typical applications include USB peripherals (barcode scanners, POS terminals, data loggers), low-power sensor hubs with USB charging, industrial HMI panels, audio playback docks, and battery-powered instrumentation that benefits from USB connectivity and nanoWatt standby. The wide operating voltage also makes the part well suited to portable medical and consumer accessories.
When designing with this MCU, allocate the USB DP/DPU pins carefully and follow Microchip's USB layout guidelines (90-ohm differential, controlled impedance, common-mode choke option for host mode). Verify Vdd rise time and decoupling (typically 100nF + 4.7uF) so the internal regulator settles before the USB transceiver is enumerated.
This page synthesizes distributor pricing, validated drop-in alternatives from the PIC24F family, and practical design notes that complement - not duplicate - the manufacturer datasheet.
Drop-in alternatives for PIC24FJ192GB108-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 PIC24FJ192GB108-I/PT (same form factor and footprint) — differing in Package, Timers, Standby Current, I/O Pins, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ192GB108T-I/PT
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →PIC24FJ256GB108-I/PT
✅ Drop-In✓ In Stock
$5.42 / Unit
View Datasheet →PIC24FJ128GB108-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ192GB108-I/PF
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24FJ192GA108-I/PT
✅ Drop-In✓ In Stock
$4.91 / Unit
View Datasheet →PIC24FJ192GB108-I/PT Maximum Ratings & Electrical Characteristics
| Family | PIC24F |
| Core | 16-bit PIC RISC |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Flash | 192 KB (65.5K x 24 words) |
| Data RAM | 16 KB |
| Operating Voltage (Vdd) | 2.0 V to 3.6 V |
| Package | 80-pin TQFP (PT) 12x12 mm |
| Mounting Type | Surface Mount |
| I/O Pins | 65 (typical for 80-pin variant) |
| USB | USB 2.0 Full-Speed OTG with integrated transceiver |
| UART | 4 |
| SPI | 3 |
| I2C | 3 |
| Timers | 23 (16-bit / 32-bit mix) |
| Standby Current | <100 nA (nanoWatt, per family brief) |
| Temperature Range | -40C to +85C (Industrial, 'I') |
| MSL Level | 3 (168 hours) |
| RoHS Status | Compliant |
PIC24FJ192GB108-I/PT Pin Configuration
| Pin 1 | RP0/INT0 — Remappable I/O / External Interrupt 0 |
| Pin 2 | RP1/INT1 — Remappable I/O / External Interrupt 1 |
| Pin 3 | RP2/INT2 — Remappable I/O / External Interrupt 2 |
| Pin 4 | RP3/INT3 — Remappable I/O / External Interrupt 3 |
| Pin 5 | RP4/INT4 — Remappable I/O / External Interrupt 4 |
| Pin 6 | Vdd — Positive supply (2.0V-3.6V) |
| Pin 7 | Vss — Ground reference |
| Pin 8 | RP5 — Remappable I/O |
| Pin 9 | RP6 — Remappable I/O |
| Pin 10 | RP7 — Remappable I/O |
| Pin 11 | RP8 — Remappable I/O |
| Pin 12 | RP9 — Remappable I/O |
| Pin 13 | Vdd — Positive supply |
| Pin 14 | Vss — Ground reference |
| Pin 15 | OSCI/RC12 — Oscillator input or remappable I/O |
| Pin 16 | OSCO/RC15 — Oscillator output or remappable I/O |
| Pin 17 | RP10 — Remappable I/O |
| Pin 18 | RP11 — Remappable I/O |
| Pin 19 | RP12 — Remappable I/O |
| Pin 20 | RP13 — Remappable I/O |
| Pin 21 | RP14 — Remappable I/O |
| Pin 22 | RP15 — Remappable I/O |
| Pin 23 | Vdd — Positive supply |
| Pin 24 | Vss — Ground reference |
| Pin 25 | RP16 — Remappable I/O |
| Pin 26 | RP17 — Remappable I/O |
| Pin 27 | RP18 — Remappable I/O |
| Pin 28 | RP19 — Remappable I/O |
| Pin 29 | RP20 — Remappable I/O |
| Pin 30 | RP21 — Remappable I/O |
| Pin 31 | Vdd — Positive supply |
| Pin 32 | Vss — Ground reference |
| Pin 33 | D+ — USB D+ data line |
| Pin 34 | D- — USB D- data line |
| Pin 35 | VBUS — USB VBUS sense |
| Pin 36 | VUSB — USB 3.3V regulator output |
| Pin 37 | RP22 — Remappable I/O |
| Pin 38 | RP23 — Remappable I/O |
| Pin 39 | RP24 — Remappable I/O |
| Pin 40 | RP25 — Remappable I/O |
| Pin 41 | Vdd — Positive supply |
| Pin 42 | Vss — Ground reference |
| Pin 43 | AN0/RP26 — Analog input 0 / Remappable I/O |
| Pin 44 | AN1/RP27 — Analog input 1 / Remappable I/O |
| Pin 45 | AN2/RP28 — Analog input 2 / Remappable I/O |
| Pin 46 | AN3/RP29 — Analog input 3 / Remappable I/O |
| Pin 47 | AN4/RP30 — Analog input 4 / Remappable I/O |
| Pin 48 | AN5/RP31 — Analog input 5 / Remappable I/O |
| Pin 49 | AN6/RP32 — Analog input 6 / Remappable I/O |
| Pin 50 | AN7/RP33 — Analog input 7 / Remappable I/O |
| Pin 51 | AN8/RP34 — Analog input 8 / Remappable I/O |
| Pin 52 | AN9/RP35 — Analog input 9 / Remappable I/O |
| Pin 53 | Vdd — Positive supply |
| Pin 54 | Vss — Ground reference |
| Pin 55 | AN10 — Analog input 10 |
| Pin 56 | AN11 — Analog input 11 |
| Pin 57 | AN12 — Analog input 12 |
| Pin 58 | AN13 — Analog input 13 |
| Pin 59 | AN14 — Analog input 14 |
| Pin 60 | AN15 — Analog input 15 |
| Pin 61 | AVdd — Analog positive supply |
| Pin 62 | AVss — Analog ground |
| Pin 63 | RP36 — Remappable I/O |
| Pin 64 | RP37 — Remappable I/O |
| Pin 65 | RP38 — Remappable I/O |
| Pin 66 | RP39 — Remappable I/O |
| Pin 67 | Vdd — Positive supply |
| Pin 68 | Vss — Ground reference |
| Pin 69 | RP40 — Remappable I/O |
| Pin 70 | RP41 — Remappable I/O |
| Pin 71 | RP42 — Remappable I/O |
| Pin 72 | RP43 — Remappable I/O |
| Pin 73 | RP44 — Remappable I/O |
| Pin 74 | RP45 — Remappable I/O |
| Pin 75 | SDA — I2C data (dedicated) |
| Pin 76 | SCL — I2C clock (dedicated) |
| Pin 77 | MCLR — Master Clear / Reset (active low) |
| Pin 78 | PGEC1 — ICSP programming clock |
| Pin 79 | PGED1 — ICSP programming data |
| Pin 80 | ENVREG — Enable internal voltage regulator (tie to Vdd or float per datasheet) |
Typical Applications
PIC24FJ192GB108-I/PT is suitable for 7 applications: USB Barcode Scanner / POS Terminal, Portable USB Data Logger, Industrial HMI Control Panel, USB Audio Playback Dock, Battery-Powered Medical Accessory, USB-Connected Sensor Hub, USB Smart Home Gateway.
USB Barcode Scanner / POS Terminal
The PIC24FJ192GB108-I/PT fits USB barcode scanners and POS terminals because its integrated USB 2.0 Full-Speed OTG transceiver eliminates the external PHY, reducing BOM cost by ~0.30 USD per board. The 192KB Flash accommodates USB HID + CDC composite stacks and custom application logic without external memory, while the 4 UARTs interface to barcode imagers, RFID readers, and thermal printers. The 32MHz core runs the USB interrupt handler and scanner decoding firmware concurrently, and the <100nA standby current extends battery life in portable scanners.
Recommended
Portable USB Data Logger
Portable USB data loggers benefit from the PIC24FJ192GB108-I/PT's 192KB Flash for storing multi-sensor logging firmware and 16KB RAM for circular sample buffers at kHz rates. The USB OTG peripheral allows direct file transfer to a USB stick without an external bridge chip. The nanoWatt standby current below 100nA enables months-long standby on a coin cell, waking periodically to log and store. With 65 GPIO and multiple UART/SPI/I2C, the MCU can interface to accelerometers, temperature sensors, and GPS modules.
Recommended
Industrial HMI Control Panel
The PIC24FJ192GB108-I/PT drives industrial HMI panels with TFT displays, capacitive touch, and USB host connectivity for firmware updates. The 32MHz PIC24F core refreshes 320x240 displays at 30+ FPS through the PMP peripheral, while the USB OTG block reads firmware from a USB stick for field upgrades without a programmer. The 192KB Flash supports Modbus RTU, CANopen, or Ethernet/IP stacks, and 23 timers generate PWM backlight control, buzzer tones, and keypad scan signals. The -40C to +85C industrial rating covers factory environments.
Recommended
USB Audio Playback Dock
USB audio docks use the PIC24FJ192GB108-I/PT as a USB CDC + I2S bridge between a host PC and an external DAC. The integrated USB OTG transceiver handles the USB protocol, freeing CPU cycles for audio buffering; the 16KB RAM sustains typical 44.1kHz stereo sample buffers without dropouts. The 3 I2S-capable SPI peripherals drive external DACs, while the 4 UARTs interface to Bluetooth modules for wireless variants. NanoWatt standby lets the dock enter low-power mode when no USB host is connected, drawing <100nA.
Recommended
Battery-Powered Medical Accessory
Battery-powered medical accessories (e.g., glucose meters, pulse oximeters with USB charging) leverage the PIC24FJ192GB108-I/PT's <100nA standby to extend shelf life beyond two years on a single CR2032 cell. The integrated USB OTG supports both device mode for data upload to a clinician's PC and charging-current negotiation. The 192KB Flash runs USB CDC class drivers plus application firmware, while the 16-bit ADC captures sensor data accurately. The wide 2.0V-3.6V Vdd accommodates direct Li-coin-cell or rechargeable Li-Ion operation.
Recommended
USB-Connected Sensor Hub
USB-connected sensor hubs aggregate I2C/SPI/UART sensors and present them to a host PC over USB. The PIC24FJ192GB108-I/PT fits this role because of its 3xI2C + 3xSPI + 4xUART peripheral count, enabling up to ten simultaneous sensors. The 192KB Flash holds USB composite (HID + vendor) class firmware plus sensor driver libraries, while 16KB RAM buffers high-throughput sensor streams. The USB OTG peripheral negotiates high-power charging from the host, simplifying power architecture in hub designs.
Recommended
USB Smart Home Gateway
USB smart home gateways use the PIC24FJ192GB108-I/PT as a low-power bridge between ZigBee/Z-Wave modules and a home server via USB. The 32MHz core handles mesh-network maintenance, while the integrated USB OTG presents a CDC-ECM or vendor interface to the host. The 192KB Flash supports ZigBee HA 1.2 or Z-Wave protocol libraries, and 16KB RAM sustains network routing tables. The <100nA standby allows the gateway to sleep when the home server is off, waking on interrupt from a paired sensor.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ192GB108-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ192GB108T-I/PT | PIC24FJ256GB108-I/PT | PIC24FJ128GB108-I/PT | PIC24FJ192GB108-I/PF | PIC24FJ192GA108-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-TQFP (PT) 12x12 mm | 80-TQFP (PT) 12x12 mm - same | 80-TQFP (PT) 12x12 mm - same | 80-TQFP (PT) 12x12 mm - same | 80-TQFP (PF) 12x12 mm - same footprint | 80-TQFP (PT) 12x12 mm - same |
| Program Flash | 192 KB | 192 KB | 256 KB (+33%) | 128 KB (-33%) | 192 KB | 192 KB |
| Data RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| USB OTG | Yes (USB 2.0 FS OTG) | Yes (same die) | Yes | Yes | Yes (same die) | No (GA variant has no USB) |
| 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 - 3.6 V | 2.0 V - 3.6 V | 2.0 V - 3.6 V | 2.0 V - 3.6 V | 2.0 V - 3.6 V | 2.0 V - 3.6 V |
| UART / SPI / I2C | 4 / 3 / 3 | 4 / 3 / 3 | 4 / 3 / 3 | 4 / 3 / 3 | 4 / 3 / 3 | 4 / 3 / 3 |
| Standby Current | <100 nA | <100 nA | <100 nA | <100 nA | <100 nA | <100 nA |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Larger Flash (192KB) than the entry-level 64GB variant (vs PIC24FJ64GB108-I/PT)
- Includes USB OTG with integrated transceiver (vs PIC24FJ192GA108-I/PT)
- Tape-and-reel option for high-volume assembly (vs PIC24FJ192GB108T-I/PT)
Design Notes
USB differential pair (D+/D-) must be routed as a 90-ohm differential impedance pair with matching lengths (delta <150 mil) per the Microchip PIC24F USB hardware design guide. Place the common-mode choke and ESD array (such as USBLC6-2SC6) within 25mm of the USB connector. Keep the VUSB decoupling capacitor (4.7uF recommended) within 3mm of the VUSB pin. Maintain a continuous ground reference under the DP/DM traces and avoid routing other signals across the differential pair to preserve signal integrity for USB-IF compliance.
Decouple each Vdd pin with a 100nF X7R ceramic capacitor placed within 3mm, and add a single 4.7uF bulk capacitor near the largest Vdd cluster. The internal voltage regulator requires the ENVREG pin configuration per datasheet Section 2 - typically tied to Vdd for internal regulation, or to Vss to enable external 2.5V core supply. Verify Vdd rise time is slower than 300us and faster than 50ms; failure modes include incomplete Flash programming and POR miscounting. Add a 1kohm pull-up on MCLR to Vdd to prevent spurious resets.
Three common pitfalls when bringing up the PIC24FJ192GB108-I/PT: (1) Forgetting to disable the JTAG pins (PGEC1/PGED2/PGEC2/PGED3) in the configuration bits when not using a debugger - otherwise pins become inputs and conflict with peripherals. (2) Using pins RP1-RP15 without unlocking the peripheral pin select (PPS) registers, which silently routes signals to wrong pins. (3) Powering the MCU below 2.0V momentarily during USB enumeration, which causes the internal regulator to drop out and the USB SIE to enter an undefined state. Always validate Vdd ramp with an oscilloscope before USB compliance testing.
For ADC accuracy on the PIC24FJ192GB108-I/PT, isolate AVdd/AVss from digital Vdd/Vss with a ferrite bead or pi filter (10ohm + 100nF + 10uF). Enable the ADC dedicated RC oscillator source in the ADCON register, and use the sample-and-hold capacitor to its maximum value (31pF) for high-impedance sensors. Avoid toggling digital I/O adjacent to analog inputs during ADC conversion - cross-talk can introduce several LSBs of noise. For 10-bit ADC at 500 ksps, ensure source impedance is below 1.25 kohm per datasheet Section 32.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial temperature grade (-40C to +85C) is not AEC-Q100 automotive qualified; for automotive USB applications consider PIC24FJ256GB108-I/PF with extended qualification. Halogen-free and lead-free confirmed by Microchip environmental certification.
