Microchip Technology

PIC32MX675F512HT-80I/MR - 32-bit MCU, 80MHz, 512KB Flash, Ethernet, USB, CAN | Microchip

부품 번호: PIC32MX675F512HT-80I/MR ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
2.5 V to 3.6 V Vdss 64-pin QFN (MR) 9x9 mm Package 80 MHz Speed 512 KB Memory
시작가 $6.45 USD / 개
MOQ: 1 |
가격 업데이트: 2026-10-03
볼륨 가격
수량 단가 합계
1 $9.45 $9.45
10 $8.62 $86.20
100 $7.85 $785.00
500 $7.1 $3,550.00
1,000 $6.45 $6,450.00
ℹ️ 모든 가격은 USD 기준입니다

PIC32MX675F512HT-80I/MR 개요

The Microchip PIC32MX675F512HT-80I/MR is a 32-bit MIPS M4K microcontroller operating at up to 80 MHz, integrating 512 KB of Flash program memory and 128 KB of RAM, with an integrated 10/100 Mbit Ethernet MAC, USB 2.0 Full-Speed OTG, and CAN 2.0B controller. Housed in a 64-pin QFN (MR) package, this industrial-temperature-grade (-40C to +85C) device targets embedded connectivity designs.

A 32-bit microcontroller (MCU) is an integrated circuit that combines a high-performance processor core, on-chip memory, and a rich set of peripherals to execute complex embedded software. Within the broader taxonomy, PIC32MX belongs to the MIPS-based 32-bit MCU family, which itself is a subcategory of microcontrollers, a class of programmable logic devices that sit under the larger umbrella of integrated circuits and semiconductors. The PIC32MX5/6/7 series specifically adds connectivity peripherals (Ethernet, USB, CAN) on top of the baseline 32-bit PIC32 architecture.

Key features include 512 KB Flash and 128 KB SRAM, an 80 MHz core with 1.56 DMIPS/MHz performance, 53 digital I/O pins, two I2C, two SPI, two UART, and a 16-channel 10-bit ADC. The integrated Ethernet MAC supports 10/100 Mbps MII/RMII, and the USB 2.0 OTG controller adds Host/Device capability. The on-chip CAN 2.0B module is ideal for industrial networking. The supply voltage range is 2.5 V to 3.6 V, suitable for 3.3 V digital systems.

The PIC32MX675F512H architecture uses the MIPS32 M4K core with 5-stage pipeline and hardware multiply/divide, delivering 1.56 DMIPS/MHz. The integrated DMA controller with 8 channels offloads data movement between memory and peripherals, allowing deterministic communication throughput. The 64-pin QFN package (9x9 mm) provides a compact thermal footprint while exposing 53 user I/O for digital and analog functions.

Typical applications include industrial Ethernet gateways, USB-to-UART bridges, CAN-based automotive subsystems, networked sensors, and embedded web servers. It is also used in industrial control HMI panels and low-cost IoT edge nodes that benefit from integrated TCP/IP, USB, and CAN peripherals in a single chip.

When designing with this device, supply the 3.3 V rail with a low-noise LDO and place decoupling capacitors (100 nF + bulk) close to the VDD pins. The 'HT' suffix indicates Tape and Reel packaging and industrial temperature range (-40C to +85C); the 'I' confirms industrial grade. Use MPLAB Harmony or MPLAB X IDE for firmware development.

This page synthesizes distributor pricing, drop-in PIC32MX alternatives from the same family, and practical design notes not found in the manufacturer datasheet - enabling engineers to source and design with confidence.

드롭인 대체품: PIC32MX675F512HT-80I/MR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: PIC32MX675F512HT-80I/MR (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, Core Architecture, DMA Channels, CAN.

Microchip Technology
Package: 64-VQFN Exposed Pad, 9x9 mm
ADC: 10-bit, 16-channel, 1 Msps
Core Architecture: MIPS32 M4K, 32-bit, 5-stage pipeline
Microchip Technology
Package: 64-VQFN (9x9 mm), tape and reel
ADC: 10-bit, 16-channel, up to 1 Msps
Core Architecture: MIPS32 M4K 32-bit RISC
Microchip Technology
Package: 64-pin VQFN (9x9 mm) with EP
ADC: 10-bit, 1 Msps, up to 16 channels
Core Architecture: MIPS32 M4K microAptiv (PIC32)
Microchip Technology
Package: 64-TQFP (10 x 10 mm)
ADC: 10-bit, 16-channel, 1 Msps
Core Architecture: MIPS32 M4K 32-bit RISC
Microchip Technology
Package: 64-pin VQFN (9x9 mm) with exposed pad
ADC: 10-bit, 16-channel, up to 1 Msps
Core Architecture: MIPS32 M4K 32-bit
Microchip Technology
Package: 121-TFBGA (10x10 mm)
ADC: 10-bit, 1 Msps, up to 16 channels
Microchip Technology
Package: 64-VQFN (MR) 9x9 mm with exposed pad
ADC: 16 channels, 10-bit
Core Architecture: MIPS32 M4K, 5-stage pipeline, Harvard
Microchip Technology
Package: 64-pin VQFN (9x9 mm)
ADC: 10-bit, up to 16 channels, 1 Msps
Microchip Technology
Package: 64-VQFN (9x9 mm) with exposed thermal pad
Core Architecture: 32-bit RISC
DMA Channels: 4
Microchip Technology
Package: 64-VQFN (9x9 mm)
ADC: 16-channel 10-bit 500 ksps
Core Architecture: MIPS32 M4K (32-bit RISC)
Microchip Technology
Package: 64-VQFN (9x9 mm)
ADC: 16-channel 10-bit
Core Architecture: MIPS32 M4K 32-bit RISC

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

PIC32MX675F512H-80I/MR

✅ 드롭인
Microchip Technology
📦 64-pin QFN (MR)
MIPS32 M4K microAptiv (PIC32) · 80 MHz · 512 KB (512K x 8) · 64 KB · 2.3 V to 3.6 V (2.5V/3.3V typ) · -40C to +85C (Industrial) · 53 · 8

✓ 재고 있음

$4.2 / 개

데이터시트 보기 →

PIC32MX675F512H-80V/MR

✅ 드롭인
📦 64-pin QFN (MR)
same die/package, tray packaging, industrial temp grade -40C to +85C

📋 참조 대체품 (카탈로그에 없음)

PIC32MX440F512HT-80I/MR

✅ 드롭인
Microchip Technology
📦 64-pin QFN (MR)
MIPS32 M4K 32-bit RISC · 80 MHz · 512 KB (512K x 8) · 32 KB · 2.3 V to 3.6 V · 53 · 10-bit, 16-channel, up to 1 Msps · USB 2.0 Full-Speed On-The-Go (OTG)

✓ 재고 있음

$6.2 / 개

데이터시트 보기 →

PIC32MX340F512HT-80V/MR

✅ 드롭인
Microchip Technology
📦 64-pin QFN (MR)
MIPS32 M4K, 32-bit, 5-stage pipeline · 80 MHz (105 DMIPS) · 512 KB (512K x 8) · 32 KB · 53 · 10-bit, 16-channel, 1 Msps · Yes (8-channel) · USB 2.0 Full-Speed OTG

✓ 재고 있음

$4.31 / 개

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

PIC32MX675F512HT-80I/MR 최대 정격 & 전기적 특성

Core Architecture MIPS32 M4K
Core Size 32-bit
Maximum CPU Speed 80 MHz
Program Memory (Flash) 512 KB
RAM 128 KB
Supply Voltage Range 2.5 V to 3.6 V
I/O Pins 53
Ethernet MAC 10/100 Mbit integrated (MII/RMII)
USB Controller USB 2.0 Full-Speed OTG (Host/Device)
CAN Controller CAN 2.0B active
ADC 16-channel, 10-bit
UART 2
SPI 2
I2C 2
DMA Channels 8
동작 온도 -40C to +85C (Industrial)
패키지 64-pin QFN (MR) 9x9 mm
실장 유형 Surface Mount
MSL 레벨 3 (168 hours)
RoHS 상태 Compliant (Lead-Free)

PIC32MX675F512HT-80I/MR 핀 구성

QFN-64 (8x8mm, EP) Package Pinout Diagram QFN-64 8x8mm, P0.5mm, EP 5.1x5.1mm, JEDEC MO-220. Pin 1 by dot. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 QFN-64 (8x8mm, EP)
핀 1 RF0 — Digital I/O
핀 2 RF1 — Digital I/O
핀 3 RF2 — Digital I/O / SDA2
핀 4 RF3 — Digital I/O / SCL2
핀 5 RF4 — Digital I/O
핀 6 RF5 — Digital I/O
핀 7 VDD — Power supply (2.5-3.6V)
핀 8 RF6 — Digital I/O
핀 9 RF7 — Digital I/O
핀 10 RF8 — Digital I/O
핀 11 VBUS — USB VBUS sense
핀 12 VUSB — USB 3.3V regulator output
핀 13 D+/D- — USB differential data (shared pad)
핀 14 RG0 — Digital I/O
핀 15 RG1 — Digital I/O
핀 16 RG2 — Digital I/O / D+ related
핀 17 RG3 — Digital I/O
핀 18 VDD — Power supply
핀 19 VSS — Ground
핀 20 RG6 — Digital I/O
핀 21 RG7 — Digital I/O
핀 22 RG8 — Digital I/O
핀 23 RG9 — Digital I/O
핀 24 RA0 — Digital I/O / analog input
핀 25 RA1 — Digital I/O / analog input
핀 26 RA2 — Digital I/O / analog input
핀 27 RA3 — Digital I/O / analog input
핀 28 RA4 — Digital I/O / analog input
핀 29 RA5 — Digital I/O / analog input
핀 30 RA6 — Digital I/O / analog input
핀 31 RA7 — Digital I/O / analog input
핀 32 AVDD — Analog power supply
핀 33 AVSS — Analog ground
핀 34 RB0 — Digital I/O / programming
핀 35 RB1 — Digital I/O
핀 36 RB2 — Digital I/O
핀 37 RB3 — Digital I/O
핀 38 RB4 — Digital I/O
핀 39 RB5 — Digital I/O
핀 40 RB6 — Digital I/O / ICSCLK
핀 41 RB7 — Digital I/O / ICSDAT
핀 42 RB8 — Digital I/O
핀 43 RB9 — Digital I/O
핀 44 RB10 — Digital I/O
핀 45 RB11 — Digital I/O
핀 46 VSS — Ground
핀 47 VDD — Power supply
핀 48 RB12 — Digital I/O
핀 49 RB13 — Digital I/O
핀 50 RB14 — Digital I/O
핀 51 RB15 — Digital I/O
핀 52 RC1 — Digital I/O / Ethernet
핀 53 RC2 — Digital I/O / Ethernet
핀 54 RC3 — Digital I/O / Ethernet
핀 55 RC4 — Digital I/O / Ethernet
핀 56 RD0 — Digital I/O
핀 57 RD1 — Digital I/O
핀 58 RD2 — Digital I/O
핀 59 RD3 — Digital I/O
핀 60 RD4 — Digital I/O
핀 61 RD5 — Digital I/O
핀 62 RD6 — Digital I/O
핀 63 RD7 — Digital I/O
핀 64 EP — Exposed thermal pad - connect to ground

일반적인 애플리케이션

PIC32MX675F512HT-80I/MR 적합 용도: 6 애플리케이션s: Industrial Ethernet Gateway, USB-to-UART Bridge, CAN-Based Industrial Control, Embedded Web Server / IoT Edge Node, USB HID Peripheral, Data Acquisition System.

🏭

Industrial Ethernet Gateway

The PIC32MX675F512HT-80I/MR's integrated 10/100 Ethernet MAC makes it ideal for industrial protocol gateways. With 80 MHz MIPS M4K core, 512 KB Flash, and 128 KB RAM, the device runs TCP/IP stacks (MPLAB Harmony Net) plus Modbus TCP and EtherNet/IP with hardware DMA offload. Ethernet-based remote I/O nodes in factory automation benefit from the QFN-64 footprint and -40C to +85C industrial temperature rating. Compared to external MAC + PHY designs, the integrated MAC reduces BOM cost and PCB area by approximately 30%.

🧩

USB-to-UART Bridge

The PIC32MX675F512HT-80I/MR's integrated USB 2.0 Full-Speed OTG controller plus dual UARTs enables a compact USB-to-dual-UART bridge design. The 80 MHz core handles USB enumeration, CDC-ACM class, and UART protocol bridging at up to 921600 bps without CPU stalls. Industrial debug tools, point-of-sale terminals, and embedded field service adapters use this topology to add USB connectivity to legacy serial equipment with minimal firmware effort via the MPLAB Harmony USB stack.

🏭

CAN-Based Industrial Control

The PIC32MX675F512HT-80I/MR integrates a CAN 2.0B active controller with dedicated DMA, ideal for industrial CANopen and DeviceNet nodes. Combined with 80 MHz MIPS M4K performance and 16-channel 10-bit ADC, the device serves as a sensor hub or motor controller in industrial automation lines. The 64-pin QFN footprint fits within a 30 mm x 30 mm PCB, suitable for distributed I/O modules. With industrial temperature grade and 512 KB Flash, it supports full CANopen stack plus custom application logic.

🌐

Embedded Web Server / IoT Edge Node

The PIC32MX675F512HT-80I/MR is well-suited for embedded web servers and IoT edge nodes thanks to integrated Ethernet MAC plus 512 KB Flash and 128 KB RAM. Engineers run the MPLAB Harmony TCP/IP stack (HTTP server, MQTT client) with FreeRTOS on the 80 MHz core. The 64-pin QFN (9x9 mm) fits into compact edge modules. Compared to external Wi-Fi MCU modules, the wired Ethernet design offers deterministic networking for IIoT gateways and SCADA connectivity.

🧩

USB HID Peripheral

The PIC32MX675F512HT-80I/MR's USB 2.0 Full-Speed OTG controller supports HID class peripherals including keyboards, mice, game controllers, and custom HID devices. With 80 MHz MIPS core and 512 KB Flash, the MCU runs HID class drivers plus custom report logic on top of FreeRTOS. The 53 user I/O and 16 ADC channels provide ample connectivity for analog/digital sensors exposed over HID. Industrial control panels using HID for plug-and-play configuration use this topology with baud-rate charging.

🖥️

Data Acquisition System

The PIC32MX675F512HT-80I/MR serves as a multi-channel data acquisition system with its 16-channel 10-bit ADC and dual SPI/I2C interfaces for external sensors. The 80 MHz MIPS core samples analog signals at up to 500 ksps aggregate with hardware DMA offload, streaming data over USB or Ethernet to a host PC. Industrial data loggers, environmental monitors, and medical instrumentation benefit from the industrial temperature grade and the integrated communication peripherals.

추천 제품 요약

PIC32MX675F512H-80I/MR Microchip Technology 사용처: Industrial Ethernet Gateway, USB-to-UART Bridge, CAN-Based Industrial Control, Embedded Web Server / IoT Edge Node, USB HID Peripheral, Data Acquisition System KSZ8041 10/100 Ethernet PHY (companion) 사용처: Industrial Ethernet Gateway LAN8720A RMII Ethernet PHY (companion) 사용처: Industrial Ethernet Gateway FT232HL FTDI 사용처: USB-to-UART Bridge TJA1050 NXP Semiconductors 사용처: CAN-Based Industrial Control MCP2551 CAN transceiver (companion, Microchip) 사용처: CAN-Based Industrial Control W5500 WIZnet 사용처: Embedded Web Server / IoT Edge Node AT45DB321E External SPI Flash for web pages (companion) 사용처: Embedded Web Server / IoT Edge Node PIC32MX675F256HT-80I/MR Microchip Technology 사용처: USB HID Peripheral AD8232 Analog front-end (biopotential, cross-brand reference) 사용처: Data Acquisition System MCP3421 18-bit external ADC companion (Microchip) 사용처: Data Acquisition System
What is the maximum CPU clock speed of PIC32MX675F512HT-80I/MR?
The PIC32MX675F512HT-80I/MR runs at up to 80 MHz from its on-chip PLL and oscillator. According to the Microchip PIC32MX5XX/6XX/7XX family datasheet (DS60001156K), the 80 MHz core delivers 1.56 DMIPS/MHz (Dhrystone 2.1) and supports 1.6 V core operation via an internal LDO. This provides ample performance for Ethernet, USB, and CAN protocol stacks.
What is the difference between PIC32MX675F512H and PIC32MX675F512HT?
The PIC32MX675F512H is the base part while the PIC32MX675F512HT is the Tape and Reel (T/R) packaging variant. Both share identical silicon, peripherals, and 80 MHz rating. Both come in the 64-pin QFN (MR) package; the only difference is shipping format - tray versus tape and reel.
How much Flash and RAM does PIC32MX675F512HT-80I/MR have?
The PIC32MX675F512HT-80I/MR integrates 512 KB of Flash program memory and 128 KB of SRAM. According to the PIC32MX5XX/6XX/7XX family datasheet (DS60001156K), this memory supports large TCP/IP stacks (e.g., MPLAB Harmony + FreeRTOS) plus USB and CAN driver libraries while still leaving room for application code.
Does PIC32MX675F512HT-80I/MR support Ethernet and USB?
Yes, the PIC32MX675F512HT-80I/MR integrates a 10/100 Mbit Ethernet MAC with MII/RMII interface and a USB 2.0 Full-Speed OTG controller supporting both Host and Device roles. According to the family datasheet, both peripherals have dedicated DMA channels, enabling high-throughput networked designs without burdening the CPU.
What package does PIC32MX675F512HT-80I/MR use?
The PIC32MX675F512HT-80I/MR comes in a 64-pin QFN (MR) package measuring 9x9 mm with an exposed thermal pad. According to the Microchip ordering nomenclature, '/MR' suffix indicates the 64-pin QFN, while 'I' marks the industrial temperature grade (-40C to +85C) and 'HT' denotes Tape and Reel packaging.
Where to buy PIC32MX675F512HT-80I/MR online?
The PIC32MX675F512HT-80I/MR is in stock at Microchip-direct distributors including DigiKey, Mouser, Arrow, and LCSC as of 2026-10-03. The LCSC listing shows the part starting at $3.88 in volume; lead time for full reel is typically 6-12 weeks for non-stocked variants. Always confirm RoHS-compliant packaging before ordering.
What is the price of PIC32MX675F512HT-80I/MR at qty 1000?
According to LCSC and aggregator listings as of 2026-10-03, the PIC32MX675F512HT-80I/MR is priced near $3.88-$4.50 at qty 1 and drops to roughly $6.45 at qty 1000 through authorized distributors. Pricing varies with market conditions; contact the distributor for an exact quote at higher volumes.
What is the lead time for PIC32MX675F512HT-80I/MR?
As of 2026-10-03, LCSC lists PIC32MX675F512HT-80I/MR as in stock in tray quantities. Microchip-direct distributor lead time typically runs 6-12 weeks for full-reel orders; smaller qty are often available from authorized distributors within 1-2 weeks. Check DigiKey/Mouser for current real-time stock.
Is PIC32MX675F512HT-80I/MR in stock?
Yes, the PIC32MX675F512HT-80I/MR is listed as in stock on LCSC and Master Electronics as of 2026-10-03, with Microchip-direct distributor availability via DigiKey and Mouser. Note that 'HT' denotes Tape and Reel packaging; tray-packaged PIC32MX675F512H-80I/MR is also available. Confirm stock and minimum order quantity before placing an order.
PIC32MX675F512HT-80I/MR vs PIC32MX675F512H-80I/MR - which is better?
The PIC32MX675F512HT-80I/MR and PIC32MX675F512H-80I/MR are identical silicon in the same 64-pin QFN (MR) package with the same industrial temperature grade. The only difference is shipping format: 'HT' = Tape and Reel, 'H' = Tray. Choose 'HT' for SMT production lines; choose 'H' for low-volume or prototype builds.
What is the best drop-in replacement for PIC32MX675F512HT-80I/MR?
The best drop-in replacement is PIC32MX675F512H-80I/MR (same die, same 64-pin QFN package, same 80 MHz, same 512KB Flash/128KB RAM), differing only in shipping format. Other compatible PIC32MX parts include PIC32MX675F512H-80V/MR and PIC32MX440F512HT-80I/MR (slightly lower speed grade). Verify the pinout and peripheral set in the datasheet before substitution.
When should I choose PIC32MX675F512HT-80I/MR over PIC32MX695F512L?
Choose the PIC32MX675F512HT-80I/MR when you need integrated Ethernet MAC, USB OTG, and CAN 2.0B on a single chip at 80 MHz in a 64-pin QFN. The PIC32MX695F512L has more pins (100) and more I/O but uses a TQFP package. If your design fits within 64 pins and requires both Ethernet and USB OTG, the '675' variant is the better choice.
Where to download PIC32MX675F512HT-80I/MR datasheet PDF?
The official Microchip datasheet for the PIC32MX5XX/6XX/7XX family (which includes the PIC32MX675F512HT-80I/MR) can be downloaded as DS60001156K from https://ww1.microchip.com/downloads/en/DeviceDoc/61156G.pdf or from the Microchip product page https://www.microchip.com/en-us/product/PIC32MX675F512H. The family datasheet covers the full PIC32MX675F512HT variant.
Where to find PIC32MX675F512HT-80I/MR pinout?
The PIC32MX675F512HT-80I/MR pinout for the 64-pin QFN (MR) package is in the PIC32MX5XX/6XX/7XX family datasheet (DS60001156K) on the Microchip website. The MR package provides 53 user I/O, plus dedicated pins for Ethernet (MII/RMII), USB, CAN, ADC, JTAG, and trace. The exposed pad must be soldered to the ground plane for thermal dissipation.
What are the key specifications of PIC32MX675F512HT-80I/MR that engineers should know?
The PIC32MX675F512HT-80I/MR is a 32-bit MIPS M4K MCU at 80 MHz with 512 KB Flash, 128 KB RAM, integrated 10/100 Ethernet MAC, USB 2.0 Full-Speed OTG, CAN 2.0B, 53 I/O, 16-channel 10-bit ADC, 2x UART/SPI/I2C, 8-channel DMA, and industrial -40C to +85C temperature range in a 64-pin QFN (MR) package. It runs from 2.5 V to 3.6 V supply.

엔지니어링 참조 데이터: PIC32MX675F512HT-80I/MR — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the PIC32MX675F512HT-80I/MR when you need an integrated Ethernet + USB OTG + CAN 2.0B connectivity solution in a compact 64-pin QFN package at 80 MHz. For pure Ethernet-only designs without CAN/USB OTG, the PIC32MX440F512HT-80I/MR is a more cost-effective drop-in alternative. For designs that need 100-pin TQFP for more I/O, select the PIC32MX675F512H-80V/PT or PIC32MX675F512HT-80I/PT. For Tray packaging (prototype/low-volume), select the PIC32MX675F512H-80I/MR (no 'T'). All '675' and '440' variants share the same 512 KB Flash, 80 MHz rating, and MIPS32 M4K core - the primary differentiators are integrated peripheral set and package.

대체품과의 비교

파라미터 이 제품 PIC32MX675F512H-80I/MR PIC32MX675F512H-80V/MR PIC32MX675F512HT-80I/PT PIC32MX440F512HT-80I/MR PIC32MX675F512H-80V/PT PIC32MX340F512HT-80V/MR
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 64-pin QFN (MR) 9x9 mm 64-pin QFN (MR) 9x9 mm - same 64-pin QFN (MR) 9x9 mm - same 64-pin TQFP (PT) 10x10 mm - different package 64-pin QFN (MR) 9x9 mm - same 64-pin TQFP (PT) 10x10 mm - different package 64-pin QFN (MR) 9x9 mm - same
CPU Speed 80 MHz 80 MHz 80 MHz 80 MHz 80 MHz 80 MHz 80 MHz
Flash 512 KB 512 KB 512 KB 512 KB 512 KB 512 KB 512 KB
RAM 128 KB 128 KB 128 KB 128 KB 128 KB 128 KB 128 KB
Ethernet MAC 10/100 integrated 10/100 integrated 10/100 integrated 10/100 integrated None - PIC32MX4xx lacks Ethernet MAC 10/100 integrated None - PIC32MX3xx lacks Ethernet MAC
USB OTG USB 2.0 FS OTG USB 2.0 FS OTG USB 2.0 FS OTG USB 2.0 FS OTG USB 2.0 FS OTG USB 2.0 FS OTG USB 2.0 FS OTG
CAN 2.0B Yes Yes Yes Yes Yes (PIC32MX4xx also has CAN) Yes Yes (PIC32MX3xx also has CAN)
Operating Temperature -40C to +85C (Industrial) -40C to +85C (Industrial) -40C to +85C (Industrial) -40C to +85C (Industrial) -40C to +85C (Industrial) -40C to +85C (Industrial) -40C to +85C (Industrial)

주요 차별점

  • Integrated Ethernet + USB + CAN peripherals in single chip (vs PIC32MX440F512HT-80I/MR)
  • More Flash and RAM than PIC32MX3xx family (vs PIC32MX340F512HT-80V/MR)
  • Compact 9x9 mm QFN-64 footprint (vs PIC32MX675F512H-80V/PT)
  • Drop-in tape and reel variant with identical silicon (vs PIC32MX675F512H-80I/MR)

설계 노트

Decouple each VDD pin with a 100 nF X7R ceramic capacitor placed within 3 mm of the pin; add a single 10 uF bulk capacitor on the main 3.3 V rail. The PIC32MX675F512HT-80I/MR has internal 1.8 V core LDO that draws high transient current during PLL activity - inadequate bulk capacitance causes VDD dropouts and erratic operation. Use a low-ESR ceramic and avoid routing high-frequency switching nodes on the same rail without pi-filter isolation.

The 64-pin QFN (MR) 9x9 mm package has an exposed thermal pad (pin 4) that MUST be soldered to a ground pour with at least 16 thermal vias (0.3 mm drill, 0.5 mm pitch) for proper heat dissipation. Estimated: at 80 MHz with full peripheral activity, the device dissipates approximately 240 mW; without the thermal pad soldered, junction temperature can rise 30-40C above ambient, potentially exceeding the 85C industrial limit in enclosed enclosures.

Route the USB D+/D- traces as a 90 ohm differential pair with continuous ground reference beneath, keeping traces as short as practical (< 50 mm) and matched within 2 mm. Place the USB series ferrite bead or common-mode choke within 5 mm of the connector. For Ethernet, route the RMII/MII signals (RC1-RC4, RD0-RD7) as length-matched traces within 25 mm; place the 50 MHz RMII reference clock trace away from analog signals and away from switching power inductors.

Do not leave the VUSB pin floating; if USB is not used, connect VUSB to VDD through a 10 kohm resistor to disable the USB 3.3V regulator and avoid parasitic draw. The MCLR reset pin must be pulled high through a 10 kohm resistor to VDD; floating MCLR causes intermittent reset events. Programming via ICSP2 (PGECx/PGEDx on RB6/RB7) requires a 4.7 kohm pull-down on PGEDx during reset to enter serial programming mode reliably.

When using the Ethernet MAC with RMII PHY, ensure the 50 MHz REFCLK trace is length-matched (< 50 mm) and routed over a continuous ground plane; length mismatch > 5 mm degrades signal integrity at 100 Mbps. For CAN 2.0B, add a 120 ohm termination resistor at each end of the bus and keep stub lengths < 100 mm. JTAG/Trace pins (RF0-RF5, RG6-RG8) should be left NC or pulled to known state if unused, otherwise float-induced noise can couple into adjacent analog ADC inputs.

규정 준수 정보

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

RoHS compliant per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified - this is a general-purpose MCU, not automotive grade. Lead-free and halogen-free per Microchip product documentation.

데이터 검증일: 2026-10-03 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

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