PIC24FJ128DA106-I/PT - 16-Bit 32MHz 128KB Flash MCU | Microchip
MPN: PIC24FJ128DA106-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.58 | $75.80 |
| 100 | $6.74 | $674.00 |
| 500 | $5.91 | $2,955.00 |
| 1,000 | $5.07 | $5,070.00 |
PIC24FJ128DA106-I/PT Overview
A 16-bit microcontroller (MCU) is a programmable processor that executes instructions 16 bits wide, providing a balance between the simplicity of 8-bit MCUs and the throughput of 32-bit MCUs. In the broader taxonomy, the PIC24FJ belongs to the microcontroller family, which sits under embedded processors and then semiconductor integrated circuits. 16-bit MCUs are commonly deployed in human-machine interface (HMI), industrial control, and consumer products where deterministic interrupt latency, generous memory, and rich peripherals are required.
Key differentiating features include the integrated graphics controller with hardware acceleration, native USB OTG support, and the CTMU for capacitive touch sensing. The device also integrates a 16-channel 10-bit A/D converter, three analog comparators, five 16-bit timers, a hardware real-time clock/calendar (RTCC), and two UART/I2C/SPI modules. The 128 KB flash is sufficient to host a graphical user interface, a USB stack, and application code simultaneously.
The PIC24F-DA family is manufactured on a low-power CMOS process and supports nanoWatt XLP-style sleep modes for battery-friendly operation. Its MIPS-based 16-bit core delivers approximately 16 MIPS at 32 MHz, with single-cycle multiply and hardware divide. The integrated graphics master port and dedicated display controller reduce BOM cost for TFT panel designs.
Typical applications include graphical user interfaces on industrial HMIs, point-of-sale terminals, medical device displays, USB-connected embedded peripherals, and capacitive touch panels. The wide peripheral set also makes it suitable for portable instrumentation where battery life and small PCB footprint are priorities.
When designing with this part, confirm the PCB footprint is a 64-pin TQFP (0.5 mm pitch) layout, allocate sufficient decoupling near the VDD/VSS pairs, and follow Microchip's graphics library guidelines for the panel interface. Ensure the chosen display timing matches the part's QVGA/WQVGA configuration ranges.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not found in the manufacturer datasheet alone, helping procurement and engineering teams make a faster sourcing decision.
Drop-in alternatives for PIC24FJ128DA106-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 PIC24FJ128DA106-I/PT (same form factor and footprint) — differing in Package, ADC, MSL Level, Core Architecture, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ128GA106-I/PT
✅ Drop-In✓ In Stock
$4.88 / Unit
View Datasheet →PIC24FJ256GB106-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ128DA106-I/MR
✅ Drop-In✓ In Stock
$2.4 / Unit
View Datasheet →PIC24FJ128DA106-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ128DA106-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F (16-bit modified Harvard) |
| Core Size | 16-bit |
| CPU Speed | 32 MHz |
| MIPS | 16 MIPS |
| Program Memory (Flash) | 128 KB (43K x 24) |
| RAM | 24 KB |
| Number of I/O Pins | 52 |
| Oscillator Type | Internal |
| Package | 64-pin TQFP (10x10 mm), 0.5 mm pitch |
| Mounting Type | Surface Mount |
| USB Interface | USB On-The-Go (OTG) |
| A/D Converter | 10-bit, 16 channels |
| Graphics Controller | Integrated, up to 4.3" WQVGA 480x272 |
| Timers | Five 16-bit |
| CTMU | Charge Time Measurement Unit (touch sensing) |
| RTCC | Hardware Real-Time Clock/Calendar |
| Operating Temperature Range | -40C to +85C (industrial, 'I' suffix) |
| MSL Level | 3 |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC24FJ128DA106-I/PT Pin Configuration
| Pin 1 | RP0/RF0 — Remappable peripheral I/O / I/O pin |
| Pin 2 | RP1/RF1 — Remappable peripheral I/O / I/O pin |
| Pin 3 | RP2/RF2 — Remappable peripheral I/O / I/O pin |
| Pin 4 | RP3/RF3 — Remappable peripheral I/O / I/O pin |
| Pin 5 | RP4/RF4 — Remappable peripheral I/O / I/O pin |
| Pin 6 | RP5/RF5 — Remappable peripheral I/O / I/O pin |
| Pin 7 | RP6/RF6 — Remappable peripheral I/O / I/O pin |
| Pin 8 | RP7/RF7 — Remappable peripheral I/O / I/O pin |
| Pin 9 | RP8/RF8 — Remappable peripheral I/O / I/O pin |
| Pin 10 | VDD — Positive supply (2.0V to 3.6V) |
| Pin 11 | RP9/RF9 — Remappable peripheral I/O / I/O pin |
| Pin 12 | RP10/RF10 — Remappable peripheral I/O / I/O pin |
| Pin 13 | RP11/RF11 — Remappable peripheral I/O / I/O pin |
| Pin 14 | RP12/RF12 — Remappable peripheral I/O / I/O pin |
| Pin 15 | RP13/RF13 — Remappable peripheral I/O / I/O pin |
| Pin 16 | RP14/RF14 — Remappable peripheral I/O / I/O pin |
| Pin 17 | RP15/RF15 — Remappable peripheral I/O / I/O pin |
| Pin 18 | VSS — Ground reference |
| Pin 19 | RA0 — I/O pin |
| Pin 20 | RA1 — I/O pin |
| Pin 21 | RA2 — I/O pin |
| Pin 22 | RA3 — I/O pin |
| Pin 23 | RA4 — I/O pin |
| Pin 24 | RA5 — I/O pin |
| Pin 25 | RA6 — I/O pin |
| Pin 26 | RA7 — I/O pin |
| Pin 27 | AVDD — Analog positive supply |
| Pin 28 | AVSS — Analog ground |
| Pin 29 | RB0 — I/O pin / programming |
| Pin 30 | RB1 — I/O pin |
| Pin 31 | RB2 — I/O pin |
| Pin 32 | RB3 — I/O pin |
| Pin 33 | RB4 — I/O pin |
| Pin 34 | RB5 — I/O pin |
| Pin 35 | RB6 — I/O pin / ICSPCLK |
| Pin 36 | RB7 — I/O pin / ICSPDAT |
| Pin 37 | RC1 — I/O pin |
| Pin 38 | RC2 — I/O pin |
| Pin 39 | RC3 — I/O pin |
| Pin 40 | RC4 — I/O pin |
| Pin 41 | RD0 — I/O pin |
| Pin 42 | RD1 — I/O pin |
| Pin 43 | RD2 — I/O pin |
| Pin 44 | RD3 — I/O pin |
| Pin 45 | RD4 — I/O pin |
| Pin 46 | RD5 — I/O pin |
| Pin 47 | RD6 — I/O pin |
| Pin 48 | RD7 — I/O pin |
| Pin 49 | RE0 — I/O pin |
| Pin 50 | RE1 — I/O pin |
| Pin 51 | RE2 — I/O pin |
| Pin 52 | RE3 — I/O pin |
| Pin 53 | RE4 — I/O pin |
| Pin 54 | RE5 — I/O pin |
| Pin 55 | RE6 — I/O pin |
| Pin 56 | RE7 — I/O pin |
| Pin 57 | RG0 — I/O pin |
| Pin 58 | RG1 — I/O pin |
| Pin 59 | RG2 — I/O pin / D+ USB |
| Pin 60 | RG3 — I/O pin / D- USB |
| Pin 61 | RG6 — I/O pin |
| Pin 62 | RG7 — I/O pin |
| Pin 63 | RG8 — I/O pin |
| Pin 64 | RG9 — I/O pin |
Typical Applications
PIC24FJ128DA106-I/PT is suitable for 6 applications: Industrial HMI with TFT Display, USB Point-of-Sale Terminal, Portable Medical Device Display, Capacitive Touch Control Panel, Embedded USB Host Device, Consumer Appliance Control Board.
Industrial HMI with TFT Display
The PIC24FJ128DA106-I/PT is purpose-built for 4.3" WQVGA HMIs because its integrated graphics controller and parallel master port drive 480x272 TFT panels directly without an external LCD controller. The 128 KB flash and 24 KB RAM comfortably fit Microchip's Graphics Library primitives, button widgets, and frame buffers. At 32 MHz / 16 MIPS, the MCU can refresh the display and still poll capacitive touch inputs through the CTMU. Designers save BOM cost and PCB area versus discrete MCU-plus-controller solutions, while the 52 I/O leave headroom for RS-485, encoder, and relay interfaces typical on factory-floor panels.
Recommended
USB Point-of-Sale Terminal
USB OTG makes the PIC24FJ128DA106-I/PT a strong fit for compact point-of-sale terminals that must communicate with printers, scanners, or host PCs over USB. The on-chip USB OTG controller eliminates external transceiver cost, while the 16 MIPS core processes transactions and renders receipts on the integrated graphics display. The 128 KB flash hosts a USB stack plus application firmware, and the 24 KB RAM buffers transaction logs. The 64-pin TQFP package keeps the PCB small enough for handheld form factors typical in retail.
Recommended
Portable Medical Device Display
Battery-powered medical devices benefit from the PIC24FJ128DA106-I/PT's nanoWatt-style sleep modes, integrated TFT graphics, and CTMU for touch-based user input. The 16 MIPS performance is sufficient for waveform visualization on small WQVGA panels used in patient monitors and portable diagnostics. The industrial temperature grade (-40C to +85C) supports clinical environments with temperature swings. The single-chip integration reduces board space, helping achieve the compact, lightweight form factors required for handheld medical equipment.
Recommended
Capacitive Touch Control Panel
The on-chip CTMU enables the PIC24FJ128DA106-I/PT to scan up to 64 capacitive touch buttons without an external touch controller IC. Combined with the integrated graphics controller, the MCU handles both touch acquisition and on-screen feedback on a 4.3" panel in a single device. The 16-channel 10-bit ADC and five 16-bit timers give plenty of headroom for sensor fusion and LED feedback PWM. Designers gain a lower BOM cost and simpler firmware versus discrete touch-controller solutions.
Recommended
Embedded USB Host Device
USB OTG in host mode lets the PIC24FJ128DA106-I/PT connect to USB mass-storage, keyboards, or printers in kiosk and embedded systems. The 128 KB flash and 24 KB RAM are large enough to run a USB host stack plus a file system and small UI. Industrial temperature rating and the robust TQFP package suit unattended installations such as factory kiosks and information terminals. The integrated graphics controller enables direct panel rendering without additional hardware.
Recommended
Consumer Appliance Control Board
White goods and consumer appliances with graphical interfaces - such as washing machines, ovens, and smart thermostats - benefit from the PIC24FJ128DA106-I/PT's single-chip display-plus-control capability. The MCU drives the user TFT, scans capacitive touch buttons, and handles motor control timing using its 16-bit timers. The industrial temperature grade covers appliance environments, and the TQFP package survives standard SMT production flows. Reduced BOM and faster firmware development accelerate time-to-market for consumer product teams.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ128DA106-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ128GA106-I/PT | PIC24FJ256GB106-I/PT | PIC24FJ128DA106-I/MR | PIC24FJ128DA106-I/ML | LPC1768FBD100 | STM32F407VGT6 |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | NXP Semiconductors | STMicroelectronics |
| Package | 64-pin TQFP (10x10) | 64-pin TQFP (10x10) - same | 64-pin TQFP (10x10) - same | 64-pin TQFP (10x10) - same | 64-pin TQFP (10x10) - same | 100-pin LQFP (14x14) - different | 100-pin LQFP (14x14) - different |
| Core | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit | Cortex-M3 32-bit | Cortex-M4 32-bit |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 100 MHz / 125 DMIPS | 168 MHz / 210 DMIPS |
| Program Flash | 128 KB | 128 KB | 256 KB | 128 KB | 128 KB | 512 KB | 1 MB |
| RAM | 24 KB | 24 KB | 24 KB | 24 KB | 24 KB | 64 KB | 192 KB |
| USB OTG | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Integrated Graphics Controller | Yes (up to 4.3" WQVGA) | No | No | Yes (same die) | Yes (same die) | No | No (external FSMC TFT) |
| CTMU Touch Support | Yes | Yes | Yes | Yes | Yes | No | No (external touch IC) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Integrated graphics controller for 4.3" WQVGA displays (vs PIC24FJ128GA106-I/PT)
- Same TQFP-64 footprint for easy upgrade path (vs PIC24FJ256GB106-I/PT)
- USB OTG integrated without external transceiver (vs LPC1768FBD100)
- CTMU capacitive touch sensing on-chip (vs STM32F407VGT6)
Design Notes
Place 100 nF decoupling capacitors as close as possible to every VDD/VSS pin pair on the PIC24FJ128DA106-I/PT, plus a bulk 4.7 uF to 10 uF tantalum or ceramic near the VDD pin group. Add a ferrite bead or small inductor on the analog AVDD rail to isolate it from digital switching noise, which is critical for clean ADC readings on the 16-channel 10-bit ADC. Operating voltage is 2.0V to 3.6V; ensure the regulator has at least 100 mV of headroom under full USB OTG load transients.
Route the USB D+ and D- differential pair on the PIC24FJ128DA106-I/PT with 90 ohm differential impedance, length-matched within 2 mm, and kept short to the connector. Use a 15 kohm pull-down on the ID pin for OTG role detection. The 64-pin TQFP at 0.5 mm pitch requires careful solder paste stencil design; a 4 mil stencil and reflow profile following JEDEC J-STD-020 are recommended. Reserve a 4-layer stack-up with a dedicated ground plane under the MCU for return-current integrity on the parallel master port to the TFT.
Do not assume the PIC24FJ128GA106 and PIC24FJ128DA106 firmware are interchangeable - the DA part adds the parallel master port and graphics controller registers that the GA part lacks. Configuration bits must match the actual silicon revision; consult the silicon errata before locking down production firmware. The CTMU current source requires a calibration step using an internal reference resistor for accurate touch measurements; skipping this leads to unreliable button sensitivity across temperature. USB host mode requires sufficient bus capacitance and VBUS current limiting per USB 2.0 specifications.
The PIC24FJ128DA106-I/PT at 32 MHz dissipates well under 100 mW in normal operation, so thermal management is rarely a constraint in this 64-pin TQFP package. However, in enclosed industrial enclosures with ambient temperatures near 85C, verify that the junction temperature stays within the 125C maximum by considering theta_JA of the TQFP package. Add a small copper pour under the exposed thermal pad area (if used) and ensure air flow is not blocked if the device is co-located with heat-generating analog or power components.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial temperature grade -40C to +85C; no AEC-Q100 automotive qualification on this part number.
