PIC24FJ128GA108T-I/PT - 16-bit 32MHz 128KB Flash MCU TQFP-80 | Microchip
Référence : PIC24FJ128GA108T-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.93 | $6,93 |
| 10 | $6.24 | $62,40 |
| 100 | $5.55 | $555,00 |
| 500 | $4.99 | $2 495,00 |
| 1 000 | $4.45 | $4 450,00 |
PIC24FJ128GA108T-I/PT Présentation
What is a 16-bit Flash microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and programmable peripherals such as timers, UARTs, SPIs, and I2Cs. A 16-bit Flash MCU, like the PIC24FJ128GA108, uses a 16-bit data path (versus 8-bit for legacy MCUs), enabling higher arithmetic throughput and richer peripheral integration. Within the product hierarchy, the PIC24FJ128GA108 sits as: microcontroller -> 16-bit MCU -> PIC24F family -> general-purpose Flash MCU -> semiconductor IC.
Key features include Peripheral Pin Select (PPS) for flexible remapping of digital peripherals, three I2C, three SPI, four UART interfaces, 23 independent timers, and a 10-bit ADC with up to 16 channels depending on package variant. The device also offers a Real-Time Clock/Calendar (RTCC) module and an ultra-low-power sleep current below 100 nA.
The PIC24FJ128GA108 uses Microchip's modified Harvard architecture with a 16-bit wide instruction set and 24-bit instructions, delivering 16 MIPS at 32 MHz from a single 3.3V supply. It features a hardware multiply/divide unit, DMA controller, and a parallel master port for external bus expansion where supported.
Typical applications include industrial sensor hubs, low-power connected devices, USB/HID peripherals, multi-protocol gateways, and human-machine interface (HMI) controllers. The combination of large RAM (16 KB), multiple serial ports, and PPS makes the part especially useful as a system coordinator in mixed-signal embedded designs.
When designing with this MCU, plan the JTAG/ICSP pin allocation early, since pins used for in-circuit programming must not be repurposed as outputs. The 80-pin TQFP variant exposes the maximum peripheral count in the family, while smaller 64-pin and 100-pin variants trade peripheral count for board area.
This page synthesizes distributor pricing, drop-in alternative MPNs from the same family, and practical design notes that complement the manufacturer datasheet with cross-brand and cross-package context.
Alternatives de remplacement direct pour PIC24FJ128GA108T-I/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC24FJ128GA108T-I/PT (même facteur de forme et même empreinte) — différant par Package, Standby Current, Timers, Core Architecture, I/O Pins.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC24FJ128GA108-I/PT
✅ Remplacement direct✓ En stock
$3.78 / unité
Voir la fiche technique →PIC24FJ192GA108T-I/PT
✅ Remplacement direct✓ En stock
$5.42 / unité
Voir la fiche technique →PIC24FJ128GA108-E/PT
✅ Remplacement direct✓ En stock
$5.4 / unité
Voir la fiche technique →PIC24FJ128GA108T-I/PT Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC24F (16-bit modified Harvard) |
| Program Memory (Flash) | 128 KB (43K x 24 instructions) |
| Data RAM | 16 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage Range | 2.0 V to 3.6 V |
| Plage de température de fonctionnement | -40 C to +85 C (Industrial) |
| Boîtier | 80-pin TQFP (PT) 12x12 mm |
| I/O Pins | 69 (per manufacturer overview) |
| ADC | 10-bit |
| UART Modules | 4 |
| SPI Modules | 3 |
| I2C Modules | 3 |
| Timers | 23 (independent) |
| Peripheral Pin Select (PPS) | Yes |
| Standby Current | <100 nA (typical, per Microchip product page) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant (per Microchip product page) |
Configuration des broches de PIC24FJ128GA108T-I/PT
| Broche 1 | RP0/CN16/RB0 — Remappable peripheral / change notification |
| Broche 2 | RP1/CN17/RB1 — Remappable peripheral / change notification |
| Broche 3 | RP2/CN18/RB2 — Remappable peripheral / change notification |
| Broche 4 | RP3/CN19/RB3 — Remappable peripheral / change notification |
| Broche 5 | VSS — Ground reference |
| Broche 6 | RP4/CN20/RB4 — Remappable peripheral / change notification |
| Broche 7 | RP5/CN21/RB5 — Remappable peripheral / change notification |
| Broche 8 | RP6/CN22/RB6 — Remappable peripheral / change notification |
| Broche 9 | RP7/CN23/RB7 — Remappable peripheral / change notification |
| Broche 10 | RP8/CN24/RB8 — Remappable peripheral / change notification |
| Broche 11 | RP9/CN25/RB9 — Remappable peripheral / change notification |
| Broche 12 | VSS — Ground reference |
| Broche 13 | VDD — Positive supply (2.0V-3.6V) |
| Broche 14 | RP10/CN26/RB10 — Remappable peripheral / change notification |
| Broche 15 | RP11/CN27/RB11 — Remappable peripheral / change notification |
| Broche 16 | RP12/CN28/RB12 — Remappable peripheral / change notification |
| Broche 17 | RP13/CN29/RB13 — Remappable peripheral / change notification |
| Broche 18 | RP14/CN30/RB14 — Remappable peripheral / change notification |
| Broche 19 | RP15/CN31/RB15 — Remappable peripheral / change notification |
| Broche 20 | VSS — Ground reference |
| Broche 21 | VDD — Positive supply (2.0V-3.6V) |
| Broche 22 | OSC1/RA0 — Oscillator input / general I/O |
| Broche 23 | OSC2/RA1 — Oscillator output / general I/O |
| Broche 24 | RA2 — General I/O |
| Broche 25 | RA3 — General I/O |
| Broche 26 | RA4 — General I/O |
| Broche 27 | RA5 — General I/O |
| Broche 28 | RA6 — General I/O |
| Broche 29 | RA7 — General I/O |
| Broche 30 | VSS — Ground reference |
| Broche 31 | VDD — Positive supply (2.0V-3.6V) |
| Broche 32 | RP16/CN32/RC0 — Remappable peripheral / change notification |
| Broche 33 | RP17/CN33/RC1 — Remappable peripheral / change notification |
| Broche 34 | RP18/CN34/RC2 — Remappable peripheral / change notification |
| Broche 35 | RP19/CN35/RC3 — Remappable peripheral / change notification |
| Broche 36 | RP20/CN36/RC4 — Remappable peripheral / change notification |
| Broche 37 | RP21/CN37/RC5 — Remappable peripheral / change notification |
| Broche 38 | RP22/CN38/RC6 — Remappable peripheral / change notification |
| Broche 39 | RP23/CN39/RC7 — Remappable peripheral / change notification |
| Broche 40 | VSS — Ground reference |
| Broche 41 | VDD — Positive supply (2.0V-3.6V) |
| Broche 42 | RP24/CN40/RC8 — Remappable peripheral / change notification |
| Broche 43 | RP25/CN41/RC9 — Remappable peripheral / change notification |
| Broche 44 | VSS — Ground reference |
| Broche 45 | VDD — Positive supply (2.0V-3.6V) |
| Broche 46 | SDA1/RP26/CN42/RC10 — I2C1 data / remappable peripheral |
| Broche 47 | SCL1/RP27/CN43/RC11 — I2C1 clock / remappable peripheral |
| Broche 48 | SDA2/RP28/CN44/RC12 — I2C2 data / remappable peripheral |
| Broche 49 | SCL2/RP29/CN45/RC13 — I2C2 clock / remappable peripheral |
| Broche 50 | RP30/CN46/RC14 — Remappable peripheral / change notification |
| Broche 51 | OSC1/CLKI/RC15 — Oscillator input / general I/O |
| Broche 52 | VSS — Ground reference |
| Broche 53 | VDD — Positive supply (2.0V-3.6V) |
| Broche 54 | RD0 — General I/O |
| Broche 55 | RD1 — General I/O |
| Broche 56 | RD2 — General I/O |
| Broche 57 | RD3 — General I/O |
| Broche 58 | RD4 — General I/O |
| Broche 59 | RD5 — General I/O |
| Broche 60 | RD6 — General I/O |
| Broche 61 | RD7 — General I/O |
| Broche 62 | VSS — Ground reference |
| Broche 63 | VDD — Positive supply (2.0V-3.6V) |
| Broche 64 | RE0 — General I/O |
| Broche 65 | RE1 — General I/O |
| Broche 66 | RE2 — General I/O |
| Broche 67 | RE3 — General I/O |
| Broche 68 | RE4 — General I/O |
| Broche 69 | RE5 — General I/O |
| Broche 70 | RE6 — General I/O |
| Broche 71 | RE7 — General I/O |
| Broche 72 | VSS — Ground reference |
| Broche 73 | VDD — Positive supply (2.0V-3.6V) |
| Broche 74 | RF0 — General I/O |
| Broche 75 | RF1 — General I/O |
| Broche 76 | RF2 — General I/O |
| Broche 77 | RF3 — General I/O |
| Broche 78 | RF4 — General I/O |
| Broche 79 | RF5 — General I/O |
| Broche 80 | MCLR — Master Clear (reset, active low) |
Applications typiques
PIC24FJ128GA108T-I/PT convient pour 6 applications: Industrial Sensor Hub / Multi-Protocol Gateway, Low-Power IoT Edge Device / Battery Sensor Node, USB HID / Human Interface Device Controller, Human-Machine Interface (HMI) / Display Controller, Automotive Body Electronics (Non-Safety), Motor Control / BLDC FOC Driver.
Industrial Sensor Hub / Multi-Protocol Gateway
The PIC24FJ128GA108T-I/PT fits industrial sensor hubs because its 128 KB Flash holds full Modbus/RTU and CANopen protocol stacks, while 16 KB RAM buffers multi-sensor data streams. Three SPI, three I2C, and four UART interfaces let a single MCU aggregate RS-485 sensor buses, I2C environmental sensors, and SPI accelerometers concurrently. PPS allows layout-friendly pin assignment when board routing is constrained, and the -40C to +85C industrial range supports factory-floor deployment. With sub-100 nA standby, the part is ideal for solar-powered or battery-backed remote telemetry units.
Recommandé
Low-Power IoT Edge Device / Battery Sensor Node
The PIC24FJ128GA108T-I/PT suits battery-powered IoT nodes because its standby current under 100 nA lets multi-year coin-cell operation when the MCU wakes only on RTCC alarm or external interrupt. The 32 MHz/16 MIPS throughput runs BLE-through-UART relay firmware, LoRaWAN device drivers, or simple sensor pre-processing between sleeps. 16 KB RAM supports local data aggregation before transmit bursts, and 128 KB Flash accommodates over-the-air bootloader and signed firmware updates. The 2.0V-3.6V supply range is compatible with single-cell Li-Ion or 2xAA battery stacks.
Recommandé
USB HID / Human Interface Device Controller
The PIC24FJ128GA108T-I/PT is well-suited for USB HID peripherals because the PIC24F USB-capable family supports USB 2.0 Full-Speed device operation with on-chip transceiver. 16 KB RAM is sufficient for HID report buffers, keyboard matrix scanning, and consumer-control descriptors in 128 KB Flash. Four UART channels support auxiliary interfaces (e.g., fingerprint modules, RFID readers) alongside USB, and 23 timers simplify debounce, scan-rate, and LED PWM control. PPS lets the designer keep USB pins on fixed positions while remapping other peripherals to optimize PCB routing.
Recommandé
Human-Machine Interface (HMI) / Display Controller
The PIC24FJ128GA108T-I/PT serves as an HMI controller for small graphical or character LCDs, where 128 KB Flash stores custom font tables, menu trees, and bitmap assets while 16 KB RAM provides frame buffers. The four UART channels support RS-232/RS-485 host communication, and PPS allows flexible assignment of PWM, I2C, and SPI for backlight, touch controller, and TFT display drivers. At 32 MHz/16 MIPS, the core handles touch scanning and animated UI without external graphics accelerators, reducing BOM cost. The industrial -40C to +85C range supports outdoor kiosks and factory HMI panels.
Recommandé
Automotive Body Electronics (Non-Safety)
The PIC24FJ128GA108T-I/PT fits non-safety automotive body modules like climate-control panels, seat-position controllers, and interior lighting hubs. Industrial-grade parts are acceptable for cabin environments; for under-hood deployment, the AEC-Q100-qualified PIC24FJ128GA108-E/PT extended-temperature variant is preferred. Four UART channels drive LIN-bus stacks via external transceivers, and 128 KB Flash stores multi-language UI strings and CAN/LIN gateway tables. The 32 MHz core provides real-time response for capacitive touch and rotary encoder inputs.
Recommandé
Motor Control / BLDC FOC Driver
The PIC24FJ128GA108T-I/PT can host sensorless or sensored BLDC field-oriented-control (FOC) firmware in fans, pumps, and small appliances, with 128 KB Flash fitting Microchip's MPLAB X FOC framework plus custom application code. 23 timers provide PWM, input capture, and quadrature decoding for Hall or encoder feedback. The 16 MIPS throughput handles single-axis FOC at switching frequencies up to 20 kHz. Four UART channels expose Modbus or proprietary diagnostic interfaces to the host controller, while PPS lets engineers route PWM outputs to safe board locations.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC24FJ128GA108T-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC24FJ128GA108-I/PT | PIC24FJ192GA108T-I/PT | PIC24FJ128GA108-E/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-80 (PT) 12x12 mm | TQFP-80 (PT) 12x12 mm - same | TQFP-80 (PT) 12x12 mm - same | TQFP-80 (PT) 12x12 mm - same |
| Flash Memory | 128 KB | 128 KB | 192 KB (+50%) | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB |
| Core Speed | 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 (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) |
| Packaging Format | Tape & Reel | Tray | Tape & Reel | Tray |
Principaux différenciateurs
- Same silicon with Tape & Reel packaging for SMT production lines (vs PIC24FJ128GA108-I/PT)
- Industrial temperature grade (-40C to +85C) is standard for non-safety commercial/industrial designs (vs PIC24FJ128GA108-E/PT)
- 128 KB Flash matches most general-purpose firmware stacks without forced upgrade (vs PIC24FJ192GA108T-I/PT)
Notes de conception
Decouple every VDD/VSS pair of the PIC24FJ128GA108T-I/PT with a 100 nF ceramic capacitor placed within 5 mm of the pin. Add a bulk 4.7 uF or larger capacitor near the package. The PIC24F core draws short switching spikes when peripherals enable; per Microchip's PIC24F family datasheet, insufficient decoupling can trigger brown-out resets. Place the bulk cap before any LDO ferrite bead to suppress switching noise from outside the MCU.
Use a four-layer PCB with a continuous ground plane under the TQFP-80 footprint to reduce EMI and provide thermal spreading. Route PPS remappable signals to vias close to the destination pins to simplify later firmware remapping. Keep the 32 kHz crystal traces short and surrounded by ground pour to avoid coupling noise into the RTCC oscillator, especially in low-power designs where RTCC drift directly impacts sleep-cycle accuracy.
Do not repurpose PGC/PGD (ICSP) pins as outputs in production firmware - this will lock out in-circuit programming. Leave MCLR pulled up through a 10 kohm resistor to VDD; never leave it floating, or the MCU may intermittently reset from noise. When migrating code from PIC24FJ128GA008 to PIC24FJ128GA108, audit PPS configuration: the GA108 requires explicit PPS unlock/lock sequences via __builtin_write_OSCCONL, which the GA008 family did not always mandate.
Informations de conformité
RoHS compliant per Microchip product page. Industrial grade only - not AEC-Q100 qualified; for automotive choose PIC24FJ128GA108-E/PT or AEC-Q100-qualified dsPIC/PIC variants.
