PIC24FJ192GA108-I/PT - 192KB Flash 16-bit MCU 80-TQFP | Microchip
MPN: PIC24FJ192GA108-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.51 | $75.10 |
| 100 | $6.24 | $624.00 |
| 500 | $5.43 | $2,715.00 |
| 1,000 | $4.91 | $4,910.00 |
PIC24FJ192GA108-I/PT Overview
A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory, data RAM, and peripherals (UART, SPI, I2C, ADC, timers) into a single chip. The PIC24F family belongs to the wider taxonomy: microcontroller -> embedded processor -> semiconductor IC. PIC24F parts use Microchip's modified Harvard RISC architecture with 16-bit instructions and 24-bit instruction words, designed to balance deterministic real-time response with low energy consumption for portable and battery-backed designs.
Key features of the PIC24FJ192GA108 include: 192 KB flash (65.5K x 24 words), 16 KB SRAM, 4 KB EEPROM-like data flash, 16 MIPS at 32 MHz CPU speed, and a peripheral set covering 3x I2C, 3x SPI, 4x UART, and 23 independent timers. The part supports USB, Real-Time Clock and Calendar (RTCC), 16-channel 10-bit ADC, and parallel master port, while integrated nanoWatt XLP technology keeps standby draw below 100 nA.
Internally the device separates regulated core power (1.8V via internal LDO) from I/O power (2.0-3.6V), enabling mixed-voltage peripherals. The 80-pin TQFP exposes up to 69 digital I/O lines and supports 5V-tolerant inputs, while programming is handled through ICSP and JTAG. This combination of high memory density and rich connectivity makes the part suitable for applications that previously required multiple 8-bit MCUs.
Typical applications include industrial sensor hubs, low-power wireless gateways, USB human-interface devices (HID), battery-backed data loggers, and consumer appliances requiring graphical LCDs via integrated PMP. The 4x UART channels are particularly useful for protocol-bridging gateways (RS-232/485 to USB) and the parallel master port can directly drive external graphics memory.
When designing with this device, ensure all VSS/VDD pins are connected per datasheet, ENVREG is configured correctly for internal vs external voltage regulator mode, and the JTAG/ICSP pins are reserved for in-circuit debugging unless disabled in firmware.
This page synthesizes distributor pricing, drop-in alternatives, application notes, and PCB layout guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24FJ192GA108-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 PIC24FJ192GA108-I/PT (same form factor and footprint) — differing in Package, Standby Current, Timers, ADC, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ192GA106-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.35 / Unit
View Datasheet →PIC24FJ128GA108-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.78 / Unit
View Datasheet →PIC24FJ256GA108-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.1 / Unit
View Datasheet →PIC24FJ192GB108-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.88 / Unit
View Datasheet →PIC24FJ256GB108-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.42 / Unit
View Datasheet →PIC24FJ128GB106-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.54 / Unit
View Datasheet →PIC24FJ192GA108-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F (16-bit RISC, modified Harvard) |
| Program Flash Memory | 192 KB (65.5K x 24 words) |
| Data RAM | 16 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage (VDD) | 2.0 V to 3.6 V |
| Standby Current | <100 nA (nanoWatt XLP) |
| I/O Count | 69 digital I/O |
| ADC | 16-channel 10-bit |
| UART | 4 |
| SPI | 3 |
| I2C | 3 |
| Timers | 23 independent |
| USB | Yes (Full-Speed) |
| RTCC | Yes (Real-Time Clock and Calendar) |
| Parallel Master Port (PMP) | Yes |
| Package | TQFP-80 (PT), 12x12 mm |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (Industrial, -I) |
| MSL Level | 3 |
| RoHS Status | Compliant |
| Lead-Free / Halogen-Free | Yes / Yes |
PIC24FJ192GA108-I/PT Pin Configuration
| Pin 1 | RP15/RB15 — Remappable I/O / general purpose I/O pin B15 |
| Pin 2 | RP14/RB14 — Remappable I/O / general purpose I/O pin B14 |
| Pin 3 | RP13/RB13 — Remappable I/O / general purpose I/O pin B13 |
| Pin 4 | RP12/RB12 — Remappable I/O / general purpose I/O pin B12 |
| Pin 5 | AVDD — Analog supply voltage |
| Pin 6 | AVSS — Analog ground |
| Pin 7 | RP11/RB11 — Remappable I/O / general purpose I/O pin B11 |
| Pin 8 | RP10/RB10 — Remappable I/O / general purpose I/O pin B10 |
| Pin 9 | RP9/RB9 — Remappable I/O / general purpose I/O pin B9 |
| Pin 10 | RP8/RB8 — Remappable I/O / general purpose I/O pin B8 |
| Pin 11 | RP7/RB7 — Remappable I/O / general purpose I/O pin B7 |
| Pin 12 | RP6/RB6 — Remappable I/O / general purpose I/O pin B6 |
| Pin 13 | RP5/RB5 — Remappable I/O / general purpose I/O pin B5 |
| Pin 14 | RP4/RB4 — Remappable I/O / general purpose I/O pin B4 |
| Pin 15 | RP3/RB3 — Remappable I/O / general purpose I/O pin B3 |
| Pin 16 | RP2/RB2 — Remappable I/O / general purpose I/O pin B2 |
| Pin 17 | RP1/RB1 — Remappable I/O / general purpose I/O pin B1 |
| Pin 18 | RP0/RB0 — Remappable I/O / general purpose I/O pin B0 |
| Pin 19 | VDD — Digital supply voltage |
| Pin 20 | VSS — Digital ground |
| Pin 21 | OSC1/RC0 — Crystal oscillator input or general I/O RC0 |
| Pin 22 | OSC2/RC1 — Crystal oscillator output or general I/O RC1 |
| Pin 23 | RC2 — General purpose I/O pin C2 |
| Pin 24 | RC3 — General purpose I/O pin C3 |
| Pin 25 | RC4 — General purpose I/O pin C4 |
| Pin 26 | RC5 — General purpose I/O pin C5 |
| Pin 27 | ENVREG — Enable for internal voltage regulator |
| Pin 28 | VDD — Digital supply voltage |
| Pin 29 | VSS — Digital ground |
| Pin 30 | RD0 — General purpose I/O pin D0 |
| Pin 31 | RD1 — General purpose I/O pin D1 |
| Pin 32 | RD2 — General purpose I/O pin D2 |
| Pin 33 | RD3 — General purpose I/O pin D3 |
| Pin 34 | RD4 — General purpose I/O pin D4 |
| Pin 35 | RD5 — General purpose I/O pin D5 |
| Pin 36 | RD6 — General purpose I/O pin D6 |
| Pin 37 | RD7 — General purpose I/O pin D7 |
| Pin 38 | VDD — Digital supply voltage |
| Pin 39 | VSS — Digital ground |
| Pin 40 | RD8 — General purpose I/O pin D8 |
| Pin 41 | RD9 — General purpose I/O pin D9 |
| Pin 42 | RD10 — General purpose I/O pin D10 |
| Pin 43 | RD11 — General purpose I/O pin D11 |
| Pin 44 | RD12 — General purpose I/O pin D12 |
| Pin 45 | RD13 — General purpose I/O pin D13 |
| Pin 46 | RD14 — General purpose I/O pin D14 |
| Pin 47 | RD15 — General purpose I/O pin D15 |
| Pin 48 | RF0 — General purpose I/O pin F0 |
| Pin 49 | RF1 — General purpose I/O pin F1 |
| Pin 50 | RF2 — General purpose I/O pin F2 |
| Pin 51 | RF3 — General purpose I/O pin F3 |
| Pin 52 | RF4 — General purpose I/O pin F4 |
| Pin 53 | RF5 — General purpose I/O pin F5 |
| Pin 54 | RF6 — General purpose I/O pin F6 |
| Pin 55 | RF7 — General purpose I/O pin F7 |
| Pin 56 | VDD — Digital supply voltage |
| Pin 57 | VSS — Digital ground |
| Pin 58 | RG0 — General purpose I/O pin G0 |
| Pin 59 | RG1 — General purpose I/O pin G1 |
| Pin 60 | RG2 — General purpose I/O pin G2 |
| Pin 61 | RG3 — General purpose I/O pin G3 |
| Pin 62 | RG4 — General purpose I/O pin G4 |
| Pin 63 | RG5 — General purpose I/O pin G5 |
| Pin 64 | RG6 — General purpose I/O pin G6 |
| Pin 65 | RG7 — General purpose I/O pin G7 |
| Pin 66 | RG8 — General purpose I/O pin G8 |
| Pin 67 | RG9 — General purpose I/O pin G9 |
| Pin 68 | RG10 — General purpose I/O pin G10 |
| Pin 69 | RG11 — General purpose I/O pin G11 |
| Pin 70 | VDD — Digital supply voltage |
| Pin 71 | VSS — Digital ground |
| Pin 72 | RG12 — General purpose I/O pin G12 |
| Pin 73 | RG13 — General purpose I/O pin G13 |
| Pin 74 | RG14 — General purpose I/O pin G14 |
| Pin 75 | RG15 — General purpose I/O pin G15 |
| Pin 76 | MCLR — Master Clear (reset) input |
| Pin 77 | RA0 — General purpose I/O pin A0 |
| Pin 78 | RA1 — General purpose I/O pin A1 |
| Pin 79 | RA2 — General purpose I/O pin A2 |
| Pin 80 | RA3 — General purpose I/O pin A3 |
Typical Applications
PIC24FJ192GA108-I/PT is suitable for 7 applications: Low-Power Wireless Sensor Hub, USB Human Interface Device (HID), Industrial Protocol Bridge Gateway, Battery-Backed Data Logger, Consumer Appliance with Graphical LCD, Portable Medical Monitoring Device, IoT Edge Node with USB Debug.
Low-Power Wireless Sensor Hub
The PIC24FJ192GA108-I/PT suits battery-backed wireless sensor hubs because its 192 KB flash accommodates full Zigbee/LoRaWAN stack libraries plus application firmware, while sub-100 nA standby current extends coin-cell life to multi-year timescales. The 4x UART channels handle concurrent RS-485 sensor buses, the 3x SPI bus drives radio modules, and the 16 KB RAM buffers measurement packets between transmissions. The integrated RTCC schedules periodic wake-ups without CPU intervention, and 16-channel 10-bit ADC reads analog sensors directly. Engineers benefit from a single-chip solution replacing an external RTC + EEPROM + 8-bit MCU trio.
Recommended
USB Human Interface Device (HID)
The PIC24FJ192GA108-I/PT integrates Full-Speed USB 2.0 device with on-chip transceiver, eliminating the external PHY required by older PIC18 designs. The 16 MIPS performance handles USB HID polling at 1 kHz with ample headroom for key-matrix scanning, LED PWM control, and boot-loader firmware in the 192 KB flash. The 4x UARTs can bridge legacy serial peripherals over USB CDC, and 23 independent timers support debounce, backlight dimming, and capacitive-touch sampling. Power delivery through USB VBUS simplifies single-cable designs, while industrial -40 C to +85 C temperature rating supports harsh-environment input devices.
Recommended
Industrial Protocol Bridge Gateway
The PIC24FJ192GA108-I/PT fits multi-protocol industrial gateways because it offers 4x UARTs for concurrent RS-232/RS-485 buses plus 3x SPI and 3x I2C for sensor and EEPROM interconnects. The 16 KB RAM and 192 KB flash store Modbus RTU, Modbus TCP, and proprietary protocol stacks simultaneously. The RTCC timestamps event logs, the 10-bit ADC monitors supply rails for fault detection, and the parallel master port drives an external LCD for local HMI. Industrial -40 C to +85 C rating allows deployment in factory-floor cabinets, and nanoWatt XLP modes cut idle draw below 100 nA between polling cycles.
Recommended
Battery-Backed Data Logger
The PIC24FJ192GA108-I/PT serves battery-backed data loggers because the 192 KB flash doubles as data-flash storage (wear-leveled by MPLAB Harmony drivers), and the 16 KB RAM buffers high-speed ADC samples between writes. Sub-100 nA standby current lets a CR2032 cell sustain years of logging-only operation, while the integrated RTCC provides accurate timestamps without external crystals. The 16-channel 10-bit ADC scans multiple analog inputs (temperature, voltage, current) sequentially, and the I2C/SPI buses connect external FRAM or SD-card storage when higher capacity is needed.
Recommended
Consumer Appliance with Graphical LCD
The PIC24FJ192GA108-I/PT drives graphical LCD panels directly through its integrated Parallel Master Port (PMP), which supports 8-bit and 16-bit wide buses plus chip-select control. The 192 KB flash stores multi-language UI assets and bitmap fonts, while the 16 MIPS core refreshes the display at 30+ FPS for animated icons. The 4x UART channels connect to Wi-Fi/BLE modules for IoT-enabled appliances, the 16-channel ADC reads temperature and humidity sensors, and 23 timers handle PWM backlight dimming plus capacitive touch sensing. The industrial -40 C to +85 C rating supports kitchen and laundry environments.
Recommended
Portable Medical Monitoring Device
The PIC24FJ192GA108-I/PT suits portable patient monitors because the 16 MIPS core runs sensor fusion and ECG/PPG algorithms in real time, while 16 KB RAM stores rolling waveform buffers. The integrated Full-Speed USB enables tethered data upload to clinical PCs, and the RTCC timestamps events for diagnostic logs. The 16-channel 10-bit ADC reads multiple bioelectric signals with proper sequencing, and 23 timers manage precise sampling intervals critical for heart-rate detection. Sub-100 nA standby preserves battery life between patient sessions, while the 2.0-3.6V VDD range supports direct Li-ion supply.
Recommended
IoT Edge Node with USB Debug
The PIC24FJ192GA108-I/PT is well suited for IoT edge nodes that need USB diagnostics during development. The integrated Full-Speed USB allows direct connection to a host PC for firmware updates, log dumps, and real-time debug without external debug ICs. The 192 KB flash holds TCP/IP or MQTT client stacks alongside application logic, while the 4x UARTs bridge to LoRa, NB-IoT, or Wi-Fi modules. The 23 timers drive sensor sampling schedules without CPU load, the RTCC maintains accurate time-of-day across sleep cycles, and the 16-channel ADC reads analog environmental sensors in parallel.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ192GA108-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ192GA106-I/PT | PIC24FJ128GA108-I/PT | PIC24FJ256GA108-I/PT | PIC24FJ192GB108-I/PT | PIC24FJ256GB108-I/PT | PIC24FJ128GB106-I/PT |
|---|---|---|---|---|---|---|---|
| Package | TQFP-80 (PT), 12x12 mm | TQFP-64 (PT) - 64-pin variant | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 192 KB | 192 KB | 128 KB (-33%) | 256 KB (+33%) | 192 KB | 256 KB (+33%) | 128 KB (-33%) |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| 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 | 32 MHz / 16 MIPS |
| USB | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 OTG (Host+Device) | USB 2.0 OTG (Host+Device) | USB 2.0 OTG (Host+Device) |
| Standby Current | <100 nA | <100 nA | <100 nA | <100 nA | <100 nA | <100 nA | <100 nA |
| 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 | 2.0 V to 3.6 V |
| UART / SPI / I2C Count | 4 / 3 / 3 | 4 / 3 / 3 | 4 / 3 / 3 | 4 / 3 / 3 | 4 / 3 / 3 | 4 / 3 / 3 | 4 / 3 / 3 |
Key Differentiators
- Higher flash density in 80-pin TQFP at standard -I temperature grade (vs PIC24FJ128GA108-I/PT)
- Standard USB Device vs OTG upgrade choice (vs PIC24FJ192GB108-I/PT)
- Industrial -40 C to +85 C temperature grade standard (vs PIC24FJ192GA108-E/PT (extended grade))
Design Notes
Connect all VDD and VSS pins (pins 19, 20, 28, 29, 38, 39, 56, 57, 70, 71). Per Microchip datasheet section 2.4, leaving any supply pin disconnected can cause programming failures or unstable operation. Place 100 nF decoupling capacitors within 5 mm of each VDD pin and a single 10 uF bulk capacitor near the IC. Configure ENVREG (pin 27) tied to VDD for internal 1.8V core regulator mode, or to a 1.8V external rail if bypassing the internal LDO.
Route the 32 MHz crystal traces (OSC1/OSC2, pins 21/22) as short as possible with a guard ring to ground to minimize EMI pickup. Place crystal within 5 mm of the MCU and avoid routing digital signal traces under the crystal pads. Use a 4-layer PCB with a dedicated ground plane beneath the MCU; the exposed thermal pad of the TQFP package improves thermal dissipation under heavy peripheral load.
Do not assume any PIC24F pin is 5V tolerant without checking the datasheet. Most I/O on the PIC24FJ192GA108 are 5V tolerant only when the pin is configured as digital input; analog or output modes limit to VDD. Also, when migrating from PIC24FJ64GA108 firmware, the larger flash and RAM require updates to the linker script and startup file; do not blindly reuse the old project. Lastly, the JTAG/ICSP pins (MCLR, PGECx, PGEDx) must be reserved for in-circuit debugging unless disabled in configuration bits.
Compliance Information
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications use PIC24FJ192GA108-I/PT only in non-safety-critical subsystems or select AEC-Q100 qualified PIC variants. REACH compliance declared by Microchip.