Microchip Technology

PIC24FJ128DA106-I/PT - 16-Bit 32MHz 128KB Flash MCU | Microchip

부품 번호: PIC24FJ128DA106-I/PT ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
64-pin TQFP (10x10 mm), 0.5 mm pitch Package 32 MHz Speed 128 KB (43K x 24) Memory
시작가 $5.07 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-29
볼륨 가격
수량 단가 합계
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
ℹ️ 모든 가격은 USD 기준입니다

PIC24FJ128DA106-I/PT 개요

The Microchip Technology PIC24FJ128DA106-I/PT is a 16-bit PIC24F flash microcontroller with integrated graphics acceleration and a display controller, packaged in a 64-pin TQFP (10x10 mm) form factor. It runs at 32 MHz, provides 128 KB (43K x 24) of program flash memory, and includes 24 KB of RAM, 52 programmable I/O pins, and an internal oscillator. The device is part of the PIC24F-DA family and integrates a USB On-The-Go (OTG) controller, a charge time measurement unit (CTMU), and a parallel graphics master port designed to directly drive displays up to 4.3" WQVGA (480x272) without an external graphics controller.

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.

드롭인 대체품: PIC24FJ128DA106-I/PT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: PIC24FJ128DA106-I/PT (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, MSL Level, Core Architecture, I/O Pins.

Microchip Technology
Package: 64-pin VQFN (9x9 mm) with exposed pad
ADC: 10-bit, 16 channels
Core Architecture: PIC 16-bit (modified Harvard, RISC)
Microchip Technology
Package: 100-pin TQFP (PT), 12x12 mm
MSL Level: 3 (168 hours)
Core Architecture: PIC24F (16-bit modified Harvard RISC)
Microchip Technology
Package: 64-TQFP (PT), 10 x 10 mm
ADC: 10-bit, 16-channel
MSL Level: 3 (168 hours)
Microchip Technology
Package: 64-pin TQFP (10x10 mm)
ADC: 10-bit, 16-channel, up to 500 ksps
I/O Pins: Up to 52
Microchip Technology
Package: 64-pin TQFP (10x10 mm, 0.5 mm pitch)
ADC: 10-bit, multi-channel
MSL Level: 3 (per TQFP package)
Microchip Technology
Package: TQFP-100 (14x14 mm)
ADC: 10-bit
MSL Level: 3 (per Microchip tray packing)
Microchip Technology
Package: 64-pin TQFP (PT) 10x10 mm
ADC: 10/12-bit, multi-channel
I/O Pins: 53 (approximate, varies by peripheral remap)
Microchip Technology
Package: 44-pin TQFP (PT), 10x10 mm
Core Architecture: PIC24F (16-bit modified Harvard RISC)
Microchip Technology
Package: 100-pin TQFP (PT) 12x12 mm
ADC: 16-channel 10-bit A/D converter
MSL Level: 3 (per JEDEC J-STD-020)
Microchip Technology
Package: 64-pin TQFP (10x10 mm)
ADC: 10-bit, 500 ksps
MSL Level: MSL3 (per JEDEC J-STD-020)
Microchip Technology
Package: 100-pin TQFP (PT) 12x12 mm
ADC: 10-bit and 12-bit, multi-channel
MSL Level: 3 (per JEDEC J-STD-020)
Microchip Technology
Package: 44-pin TQFP (10x10 mm)
ADC: 12-bit, up to 20 channels, 200 ksps
MSL Level: MSL3 (168 hours)

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

PIC24FJ128GA106-I/PT

✅ 드롭인
Microchip Technology
📦 64-pin TQFP (10x10)
PIC24F (16-bit MCU) · 128 KB (43K x 24 words) · 16 KB · 32 MHz (8 MIPS with instruction-pipeline divide) · 2.0 V to 3.6 V · 64-pin TQFP (PT) 10x10 mm · 53 (approximate, varies by peripheral remap) · 3 channels

✓ 재고 있음

$4.88 / 개

데이터시트 보기 →

PIC24FJ256GB106-I/PT

✅ 드롭인
📦 64-pin TQFP (10x10)
Same 64-pin TQFP footprint; flash 256 KB (+100% vs 128 KB); USB OTG; lacks DA integrated graphics controller

📋 참조 대체품 (카탈로그에 없음)

PIC24FJ128DA106-I/MR

✅ 드롭인
Microchip Technology
📦 64-pin TQFP (10x10)
PIC 16-bit (modified Harvard, RISC) · PIC24F-DA · 128 KB (43K x 24 instructions) · 24 KB · 32 MHz (16 MIPS) · 2.5V / 3.3V · -40C to +85C (Industrial) · 64-pin VQFN (9x9 mm) with exposed pad

✓ 재고 있음

$2.4 / 개

데이터시트 보기 →

PIC24FJ128DA106-I/ML

✅ 드롭인
📦 64-pin TQFP (10x10)
Same die; different temperature grade suffix; identical 64-pin TQFP footprint

📋 참조 대체품 (카탈로그에 없음)

ℹ️ 2 교차 패키지 부품은 숨겨졌습니다 — 다른 패키지는 PCB 재작업이 필요하며 진정한 드롭인 대체품이 아닙니다. 문의하기 교차 패키지 제안이 필요하면 다음을 참조하십시오.

PIC24FJ128DA106-I/PT 최대 정격 & 전기적 특성

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
패키지 64-pin TQFP (10x10 mm), 0.5 mm pitch
실장 유형 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
동작 온도 범위 -40C to +85C (industrial, 'I' suffix)
MSL 레벨 3
RoHS 상태 Compliant
Lead-Free Yes

PIC24FJ128DA106-I/PT 핀 구성

TQFP-64 Package Pinout Diagram TQFP-64 10x10mm, P0.5mm, JEDEC MS-026. 1 16 TQFP-64
핀 1 RP0/RF0 — Remappable peripheral I/O / I/O pin
핀 2 RP1/RF1 — Remappable peripheral I/O / I/O pin
핀 3 RP2/RF2 — Remappable peripheral I/O / I/O pin
핀 4 RP3/RF3 — Remappable peripheral I/O / I/O pin
핀 5 RP4/RF4 — Remappable peripheral I/O / I/O pin
핀 6 RP5/RF5 — Remappable peripheral I/O / I/O pin
핀 7 RP6/RF6 — Remappable peripheral I/O / I/O pin
핀 8 RP7/RF7 — Remappable peripheral I/O / I/O pin
핀 9 RP8/RF8 — Remappable peripheral I/O / I/O pin
핀 10 VDD — Positive supply (2.0V to 3.6V)
핀 11 RP9/RF9 — Remappable peripheral I/O / I/O pin
핀 12 RP10/RF10 — Remappable peripheral I/O / I/O pin
핀 13 RP11/RF11 — Remappable peripheral I/O / I/O pin
핀 14 RP12/RF12 — Remappable peripheral I/O / I/O pin
핀 15 RP13/RF13 — Remappable peripheral I/O / I/O pin
핀 16 RP14/RF14 — Remappable peripheral I/O / I/O pin
핀 17 RP15/RF15 — Remappable peripheral I/O / I/O pin
핀 18 VSS — Ground reference
핀 19 RA0 — I/O pin
핀 20 RA1 — I/O pin
핀 21 RA2 — I/O pin
핀 22 RA3 — I/O pin
핀 23 RA4 — I/O pin
핀 24 RA5 — I/O pin
핀 25 RA6 — I/O pin
핀 26 RA7 — I/O pin
핀 27 AVDD — Analog positive supply
핀 28 AVSS — Analog ground
핀 29 RB0 — I/O pin / programming
핀 30 RB1 — I/O pin
핀 31 RB2 — I/O pin
핀 32 RB3 — I/O pin
핀 33 RB4 — I/O pin
핀 34 RB5 — I/O pin
핀 35 RB6 — I/O pin / ICSPCLK
핀 36 RB7 — I/O pin / ICSPDAT
핀 37 RC1 — I/O pin
핀 38 RC2 — I/O pin
핀 39 RC3 — I/O pin
핀 40 RC4 — I/O pin
핀 41 RD0 — I/O pin
핀 42 RD1 — I/O pin
핀 43 RD2 — I/O pin
핀 44 RD3 — I/O pin
핀 45 RD4 — I/O pin
핀 46 RD5 — I/O pin
핀 47 RD6 — I/O pin
핀 48 RD7 — I/O pin
핀 49 RE0 — I/O pin
핀 50 RE1 — I/O pin
핀 51 RE2 — I/O pin
핀 52 RE3 — I/O pin
핀 53 RE4 — I/O pin
핀 54 RE5 — I/O pin
핀 55 RE6 — I/O pin
핀 56 RE7 — I/O pin
핀 57 RG0 — I/O pin
핀 58 RG1 — I/O pin
핀 59 RG2 — I/O pin / D+ USB
핀 60 RG3 — I/O pin / D- USB
핀 61 RG6 — I/O pin
핀 62 RG7 — I/O pin
핀 63 RG8 — I/O pin
핀 64 RG9 — I/O pin

일반적인 애플리케이션

PIC24FJ128DA106-I/PT 적합 용도: 6 애플리케이션s: 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.

💳

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.

💊

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.

🧩

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.

🌐

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.

📱

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.

추천 제품 요약

PIC24FJ128GA106-I/PT Microchip Technology 사용처: Industrial HMI with TFT Display PIC24FJ128DA106-I/MR Microchip Technology 사용처: Industrial HMI with TFT Display, Consumer Appliance Control Board PIC24FJ256GB106-I/PT Drop-in upgrade with double flash for richer USB stacks and larger UI 사용처: USB Point-of-Sale Terminal, Embedded USB Host Device PIC24FJ128DA106-I/ML Same die, alternate packaging/temperature suffix option 사용처: Portable Medical Device Display PIC24FJ128GA306 Companion nanoWatt XLP variant for ultra-low-power touch panels 사용처: Capacitive Touch Control Panel
What is the program flash memory size of the PIC24FJ128DA106-I/PT?
The PIC24FJ128DA106-I/PT provides 128 KB of flash program memory organized as 43K x 24 words. According to the Microchip datasheet, this is sufficient for graphical user interface code, a USB stack, and application logic in a single image. The 24 KB RAM complements the flash for frame buffers and runtime data structures common in HMI applications.
What is the maximum CPU clock and performance of the PIC24FJ128DA106-I/PT?
The PIC24FJ128DA106-I/PT runs at up to 32 MHz and delivers approximately 16 MIPS of throughput, with single-cycle multiply and hardware divide. This performance is well-suited for driving 480x272 WQVGA panels with frame-buffer updates while still servicing USB and touch inputs at reasonable latency.
Does the PIC24FJ128DA106-I/PT have integrated USB?
Yes, the PIC24FJ128DA106-I/PT integrates a USB On-The-Go (OTG) controller, allowing it to act as either a USB host or device without an external transceiver IC. According to the Microchip datasheet, this eliminates BOM cost in USB peripherals and embedded host designs, but the board still requires the standard 15 kohm pull-down on the ID pin and proper 90 ohm differential routing on D+/D-.
What display resolutions does the integrated graphics controller support?
The PIC24FJ-DA family graphics controller can directly drive TFT panels up to 4.3" WQVGA at 480x272 pixels. The PIC24FJ128DA106-I/PT includes a parallel master port and dedicated graphics acceleration, removing the need for an external LCD controller. For larger displays, an external controller IC is required.
How many I/O pins does the PIC24FJ128DA106-I/PT expose?
The PIC24FJ128DA106-I/PT exposes 52 programmable I/O pins in its 64-pin TQFP package. The remaining pins are dedicated to power, ground, programming/debug, and crystal/oscillator functions. Peripheral Pin Select (PPS) on this family allows remapping of many digital peripherals to alternative I/O pins for flexible PCB routing.
Where can I buy the PIC24FJ128DA106-I/PT online and what is the lead time?
The PIC24FJ128DA106-I/PT is currently stocked at major authorized distributors including DigiKey, Mouser, and Microchip Direct, with the DigiKey listing advertising same-day shipping as of 2026-09-29. Prices start near $8.42 at qty 1, dropping to roughly $5.07 at qty 1000, with lead time typically 4-8 weeks for factory-direct orders outside distributor stock.
What is the price of PIC24FJ128DA106-I/PT in 100-piece quantities?
According to distributor listings verified 2026-09-29, the PIC24FJ128DA106-I/PT breaks at approximately $6.74 per unit at qty 100, $5.91 at qty 500, and $5.07 at qty 1000. Single-piece pricing is around $8.42, and reels are typically packed in trays for this TQFP variant. Always confirm current stock before issuing a PO.
What is the difference between PIC24FJ128DA106-I/PT and PIC24FJ128GA106-I/PT?
The PIC24FJ128DA106-I/PT adds the integrated graphics controller and display master port that the GA variant lacks, while the GA variant focuses on general-purpose features like PPS and CTMU touch support. According to Microchip's family datasheet, the DA part is pin-compatible with the GA part in the same 64-pin TQFP, making it a drop-in upgrade for graphical interface designs.
Is the PIC24FJ128DA106-I/PT the same as PIC24FJ256GB106-I/PT?
No - the PIC24FJ256GB106-I/PT has 256 KB of flash, while the PIC24FJ128DA106-I/PT has 128 KB; the GB part also targets USB-heavy general-purpose designs, while the DA variant adds the integrated graphics controller. Pinout and package are the same 64-pin TQFP, but software and firmware are not directly interchangeable because the peripheral mix differs.
When should I choose PIC24FJ128DA106-I/PT over PIC24FJ128GA106-I/PT?
Choose the PIC24FJ128DA106-I/PT when the design includes a TFT panel up to 4.3" WQVGA that needs hardware-accelerated graphics rendering with no external controller. Choose the PIC24FJ128GA106-I/PT when the application is general-purpose embedded with capacitive touch but no display graphics. Both share the 64-pin TQFP footprint for PCB reuse.
What is the best drop-in replacement for PIC24FJ128DA106-I/PT?
The PIC24FJ128GA106-I/PT is the closest drop-in replacement, sharing the 64-pin TQFP footprint and 128 KB flash but without the integrated graphics controller. The PIC24FJ256GB106-I/PT is another drop-in option for designs that can use 256 KB flash and the GB-series peripherals. For graphics workloads specifically, no true drop-in from another brand matches the integrated display controller on this footprint.
Where to download the PIC24FJ128DA106-I/PT datasheet PDF?
The official PIC24FJ128DA106-I/PT datasheet can be downloaded from Microchip's document repository at https://ww1.microchip.com/downloads/en/DeviceDoc/39970D.pdf. The same PDF covers the entire PIC24FJ-DA family variants. For errata, refer to the silicon errata document on the Microchip product page for PIC24FJ128DA106.
What is the best equivalent for PIC24FJ128DA106-I/PT from another brand?
Cross-brand equivalents for the PIC24FJ128DA106-I/PT are limited because the integrated graphics controller with master port is a Microchip-specific feature. General-purpose drop-in alternatives in 64-pin TQFP with similar flash and USB include NXP's LPC1768 (Cortex-M3, 512 KB flash, USB OTG) and ST's STM32F407 (Cortex-M4, 1 MB flash, USB OTG), but these require firmware porting and PCB verification since pinouts differ.
What are the key specifications of PIC24FJ128DA106-I/PT that engineers should know?
According to the Microchip datasheet, the PIC24FJ128DA106-I/PT is a 16-bit PIC24F MCU with 32 MHz / 16 MIPS performance, 128 KB flash, 24 KB RAM, 52 I/O, USB OTG, 16-channel 10-bit ADC, integrated graphics controller up to 480x272 WQVGA, CTMU touch support, and a 64-pin TQFP 10x10 mm package. It targets industrial temperature -40C to +85C and operates from 2.0V to 3.6V.

엔지니어링 참조 데이터: PIC24FJ128DA106-I/PT — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the PIC24FJ128DA106-I/PT when the design needs to drive a 4.3" WQVGA TFT panel directly from the MCU without an external graphics controller, and when capacitive touch buttons, USB OTG, and industrial temperature operation are all required in a single 64-pin TQFP. Pick PIC24FJ128GA106-I/PT instead if there is no display and the design only needs the same 128 KB flash with touch and USB OTG on the identical footprint. Choose PIC24FJ256GB106-I/PT when firmware size or USB host stack demands exceed 128 KB of flash. For designs that demand higher MIPS, more RAM, and an RTOS, the NXP LPC1768 or ST STM32F407 provide significant headroom but require PCB redesign and firmware porting to their Cortex-M cores.

대체품과의 비교

파라미터 이 제품 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

주요 차별점

  • 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)

설계 노트

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.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
무연
Yes
무할로겐
Yes
분쟁 광물
Compliant

RoHS and REACH compliant per Microchip product page. Industrial temperature grade -40C to +85C; no AEC-Q100 automotive qualification on this part number.

데이터 검증일: 2026-09-29 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

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