Microchip Technology

PIC32MX440F512HT-80I/MR - 80MHz 32-bit MCU 512KB Flash | Microchip

부품 번호: PIC32MX440F512HT-80I/MR ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
2.3 V to 3.6 V Vdss 64-VQFN (9x9 mm), tape and reel Package 80 MHz Speed 512 KB (512K x 8) Memory
시작가 $6.2 USD / 개
MOQ: 1 |
가격 업데이트: 2026-10-02
볼륨 가격
수량 단가 합계
1 $9.5 $9.50
10 $8.75 $87.50
100 $7.8 $780.00
500 $6.95 $3,475.00
1,000 $6.2 $6,200.00
ℹ️ 모든 가격은 USD 기준입니다

PIC32MX440F512HT-80I/MR 개요

The Microchip Technology PIC32MX440F512HT-80I/MR is a 32-bit MIPS32 M4K PIC microcontroller operating at up to 80 MHz with 512 KB of Flash program memory and 32 KB of SRAM, housed in a 64-pin VQFN (9x9 mm) package. It integrates USB-OTG, a 10-bit ADC with up to 16 channels, multiple PWM and timer peripherals, and up to 53 general-purpose I/O pins for embedded connectivity and control designs. The device operates from 2.3 V to 3.6 V across the industrial -40C to +85C temperature range.

A PIC32MX microcontroller is a 32-bit MIPS-based MCU from Microchip that bridges 8/16-bit PIC designs and full 32-bit Cortex-class processing. Within the broader taxonomy, it belongs to microcontrollers > 32-bit microcontrollers > MIPS RISC microcontrollers > embedded processors > semiconductors. The PIC32MX family uses the MIPS32 M4K core with single-cycle multiply/divide hardware, a 5-stage pipeline, and a 32-bit instruction set compatible with the MIPS32 ISA, while retaining peripheral IP and toolchain familiarity from earlier PIC microcontrollers.

Key features of the PIC32MX440F512HT-80I/MR include 80 MHz maximum CPU clock, 512 KB Flash with 32 KB RAM, USB 2.0 full-speed On-The-Go, a 16-channel 10-bit ADC with 1 Msps conversion, four 16-bit timers/counters, five PWM channels with input capture, two I2C and two UART/I2S peripherals, and parallel master port (PMP) for external bus expansion. The 64-pin VQFN package provides 53 digital I/O pins plus dedicated oscillator, programming/debug (PGECx/PGEDx), and supply pins. The "T" suffix denotes tape-and-reel packaging; the "I" suffix denotes industrial temperature grade.

Architecturally, the PIC32MX440 integrates the M4K CPU, prefetch cache, dual-bank Flash with runtime self-programmability, DMA controller, and peripheral bus bridge on a single die. The 80 MHz core delivers 1.56 DMIPS/MHz and supports code execution directly from Flash via a 16-entry instruction cache, easing real-time control loops. The integrated USB-OTG PHY removes the need for an external transceiver in USB device/host/OTG designs.

Typical applications include USB peripherals (HID, CDC, MSD, audio), industrial control HMI, low-cost graphical LCD interfaces, home automation gateways, and embedded data loggers. The USB-OTG integration suits the part to connected-device designs where a discrete USB PHY would inflate BOM cost.

When designing with this device, pay attention to decoupling (100 nF + bulk capacitor at each VDD pin pair), trace length matching for the USB DP/DM differential pair (90 ohms), and adequate thermal relief on the exposed pad of the VQFN. The ICSP pins (PGECx/PGEDx) should be brought to a header for in-circuit programming.

This page synthesizes distributor pricing, drop-in package-matched alternatives, and practical design notes not found in the manufacturer datasheet.

드롭인 대체품: PIC32MX440F512HT-80I/MR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: PIC32MX440F512HT-80I/MR (동일 폼 팩터 및 풋프린트) — 차이점: ADC, Package, Operating Temperature, DMA Channels, Program Memory (Flash).

Microchip Technology
ADC: 10-bit
Package: 64-pin VQFN (9x9 mm, MR)
Operating Temperature: -40 C to +85 C (Industrial, suffix I)
Microchip Technology
ADC: 10-bit, 16-channel, 1 Msps
Package: 64-pin VQFN (9x9 mm)
DMA Channels: 8
Microchip Technology
ADC: 10-bit, 1 Msps, 16 channels
Package: 64-VQFN (9x9 mm) with exposed pad
Operating Temperature: -40C to +85C (Industrial grade)
Microchip Technology
ADC: 10-bit, up to 16 channels, 1 Msps
Package: 64-VQFN (MR), 9x9 mm with exposed pad
Program Memory (Flash): 512 KB
Microchip Technology
ADC: 10-bit
Operating Temperature: -40C to +85C
DMA Channels: 4
Microchip Technology
ADC: 16-channel, 10-bit
Package: 64-pin QFN (MR) 9x9 mm
DMA Channels: 8
Microchip Technology
ADC: 16-channel 10-bit
Package: 64-VQFN (9x9 mm)
Operating Temperature: -40 C to +85 C (Industrial)

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

PIC32MX440F512H-80I/MR

✅ 드롭인
Microchip Technology
📦 64-VQFN (9x9)
MIPS32 M4K 32-bit RISC · 80 MHz · 105 DMIPS (Dhrystone 2.1) · 5 (Harvard architecture) · Yes (up to 40% smaller code size) · 512 KB (512K x 8) · 32 KB · 2.3 V to 3.6 V

✓ 재고 있음

$5.45 / 개

데이터시트 보기 →

PIC32MX440F512HT-80I/PT

✅ 드롭인
📦 64-TQFP (10x10)
Same silicon; TQFP-64 (10x10) vs VQFN-64 (9x9) footprint differs by pad shape, pin-for-pin logic compatible

📋 참조 대체품 (카탈로그에 없음)

PIC32MX440F256HT-80I/MR

✅ 드롭인
Microchip Technology
📦 64-VQFN (9x9)
MIPS32 M4K 32-bit · 80 MHz · 80 MIPS · 256 KB (256K x 8) · 32 KB · 10-bit, 16-channel, 1 Msps · USB 2.0 Full-Speed OTG · 8

✓ 재고 있음

$4.61 / 개

데이터시트 보기 →

PIC32MX340F512HT-80I/MR

✅ 드롭인
Microchip Technology
📦 64-VQFN (9x9)
MIPS32 M4K 32-bit · 5-stage Harvard · 80 MHz (105 DMIPS) · MIPS32 / MIPS16e (up to 40% code compression) · 512 KB (256 KB user Flash + 12 KB boot Flash) · 32 KB (execute-from-RAM supported) · 2.5 V to 3.6 V · 53

✓ 재고 있음

$4.36 / 개

데이터시트 보기 →

PIC32MX460F512LT-80I/MR

✅ 드롭인
📦 64-VQFN (9x9)
Adds Ethernet MAC and CAN, 512 KB Flash, same VQFN-64 footprint and pin order

📋 참조 대체품 (카탈로그에 없음)

PIC32MX440F512HT-80I/MR 최대 정격 & 전기적 특성

Core Architecture MIPS32 M4K 32-bit RISC
Maximum CPU Clock 80 MHz
Program Memory (Flash) 512 KB (512K x 8)
Data Memory (SRAM) 32 KB
Operating Voltage Range 2.3 V to 3.6 V
I/O Pins 53
ADC 10-bit, 16-channel, up to 1 Msps
USB USB 2.0 Full-Speed On-The-Go (OTG)
Timers 5 x 16-bit
PWM Channels 5 (with Input Capture)
UART 2
I2C 2
SPI 2
DMA Yes
Parallel Master Port (PMP) Yes
패키지 64-VQFN (9x9 mm), tape and reel
동작 온도 -40C to +85C (industrial)
실장 유형 Surface Mount
MSL 레벨 3 (168 hours)
RoHS 상태 Compliant

PIC32MX440F512HT-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 RG15 — General purpose I/O
핀 2 VDD — Positive supply voltage
핀 3 RP12/RD12 — General purpose I/O / remappable peripheral
핀 4 RA4 — General purpose I/O
핀 5 RA5 — General purpose I/O
핀 6 VSS — Ground reference
핀 7 OSC2/CLKO/RC15 — Oscillator output / general purpose I/O
핀 8 OSC1/CLKI/RC12 — Oscillator input / general purpose I/O
핀 9 PGED1/RB6 — ICSP data / general purpose I/O
핀 10 PGEC1/RB7 — ICSP clock / general purpose I/O
핀 11 AVDD — Analog positive supply
핀 12 AVSS — Analog ground
핀 13 VBUS — USB VBUS detect
핀 14 D- — USB data minus
핀 15 D+ — USB data plus
핀 16 RB0 — General purpose I/O / programming
핀 17 RB1 — General purpose I/O / programming
핀 18 RB2 — General purpose I/O
핀 19 RB3 — General purpose I/O
핀 20 RB4 — General purpose I/O
핀 21 RB5 — General purpose I/O
핀 22 VSS — Ground reference
핀 23 VDD — Positive supply voltage
핀 24 RB8 — General purpose I/O
핀 25 RB9 — General purpose I/O
핀 26 RB10 — General purpose I/O
핀 27 RB11 — General purpose I/O
핀 28 RB12 — General purpose I/O
핀 29 RB13 — General purpose I/O
핀 30 RB14 — General purpose I/O
핀 31 RB15 — General purpose I/O
핀 32 VSS — Ground reference
핀 33 VDD — Positive supply voltage
핀 34 RD0 — General purpose I/O
핀 35 RD1 — General purpose I/O
핀 36 RD2 — General purpose I/O
핀 37 RD3 — General purpose I/O
핀 38 RD4 — General purpose I/O
핀 39 RD5 — General purpose I/O
핀 40 RD6 — General purpose I/O
핀 41 RD7 — General purpose I/O
핀 42 VSS — Ground reference
핀 43 VDD — Positive supply voltage
핀 44 RC1 — General purpose I/O
핀 45 RC2 — General purpose I/O
핀 46 RC3 — General purpose I/O
핀 47 RC4 — General purpose I/O
핀 48 TDI/RG13 — JTAG data in / general purpose I/O
핀 49 TCK/RC14 — JTAG clock / general purpose I/O
핀 50 TDO/RG12 — JTAG data out / general purpose I/O
핀 51 TMS/RG14 — JTAG mode select / general purpose I/O
핀 52 TRST/RG0 — JTAG reset / general purpose I/O
핀 53 VSS — Ground reference
핀 54 VDD — Positive supply voltage
핀 55 RG1 — General purpose I/O
핀 56 RG2 — General purpose I/O
핀 57 RG3 — General purpose I/O
핀 58 RC13 — General purpose I/O
핀 59 RF0 — General purpose I/O
핀 60 RF1 — General purpose I/O
핀 61 RF2 — General purpose I/O
핀 62 RF3 — General purpose I/O
핀 63 RF4 — General purpose I/O
핀 64 RF5 — General purpose I/O

일반적인 애플리케이션

PIC32MX440F512HT-80I/MR 적합 용도: 6 애플리케이션s: USB HID Peripheral Devices, Industrial Control HMI Panels, USB Audio Device (Headset / DAC), Home Automation Gateway, Embedded Data Logger, Low-Cost Graphical LCD Interface.

🔧

USB HID Peripheral Devices

The PIC32MX440F512HT-80I/MR's integrated USB 2.0 full-speed On-The-Go controller and on-chip transceiver remove the need for an external USB PHY, lowering BOM cost for USB HID peripherals such as keyboards, mice, jog wheels, and custom input devices. The 80 MHz MIPS32 M4K core executes a USB HID stack comfortably with 512 KB Flash for class descriptors and 32 KB SRAM for HID report buffers, leaving headroom for application logic. Designers should route DP/DM as a 90-ohm differential pair and place a 1 MOhm pull-up on D+ for full-speed enumeration. The PIC32's DMA controller can service USB endpoints in the background, keeping interrupt latency low.

🏭

Industrial Control HMI Panels

The PIC32MX440F512HT-80I/MR fits industrial HMI panels requiring USB connectivity for firmware updates and a parallel master port (PMP) to drive TFT LCDs or character displays. The 16-channel 10-bit ADC reads front-panel potentiometers and sensors, while five PWM channels drive backlight dimming, buzzers, and indicator LEDs. With 53 GPIO and a 64-VQFN (9x9) footprint, the device sits beside power and touch circuitry without crowding the PCB. Industrial-grade -40C to +85C operation supports factory-floor deployment, and the 32 KB SRAM comfortably buffers display frame data.

🎧

USB Audio Device (Headset / DAC)

The PIC32MX440F512HT-80I/MR's USB-OTG plus dual I2S peripherals handle USB audio class 1.0 designs at up to 48 kHz/16-bit, sufficient for USB headsets, USB microphones, and basic DAC interfaces. The DMA controller offloads audio sample movement from the CPU, freeing the 80 MHz core to run a small UI or DSP filter. The 32 KB SRAM buffers audio packets while 512 KB Flash stores USB descriptors, class drivers, and application code. For 24-bit/96 kHz pro-audio, migrate to PIC32MX470 or PIC32MZ with more RAM and a faster core.

🏠

Home Automation Gateway

The PIC32MX440F512HT-80I/MR's USB-OTG enables Wi-Fi or Ethernet dongle connectivity, while its two UART, two I2C, and two SPI peripherals interface to sub-GHz radios, sensors, and Zigbee or Z-Wave bridges. The 512 KB Flash stores the gateway protocol stack (MQTT, Modbus, etc.), and 32 KB RAM buffers network packets. Industrial temperature range supports installation in utility rooms and basements. The 53 GPIO expand to control relays and read switch inputs, making the part a flexible home-automation controller.

💾

Embedded Data Logger

The PIC32MX440F512HT-80I/MR is well suited to battery-powered data loggers that record sensor data to SD cards or USB sticks. The 16-channel 10-bit ADC at 1 Msps captures fast analog events, while DMA streams samples to SRAM. The integrated USB-OTG enables plug-and-play file retrieval when the user connects the device to a PC. The 80 MHz core leaves enough cycles for FAT32 file system management, while 512 KB Flash holds firmware and configuration. Low-power sleep modes (down to microamp currents) extend battery life between logging sessions.

📺

Low-Cost Graphical LCD Interface

The PIC32MX440F512HT-80I/MR's parallel master port (PMP) drives 8/16-bit TFT LCDs and graphic OLEDs directly, eliminating external display controller ICs. The 80 MHz core refreshes QVGA (320x240) panels with 16-bit color at 30+ fps using simple frame buffer logic in 32 KB SRAM. Five PWM channels provide backlight control, touch-sensor excitation, and status LEDs. Designers pair the PIC32 with an external SPI Flash for full-screen assets, using one of the two SPI peripherals. The 64-VQFN package keeps the display-control PCB compact.

추천 제품 요약

PIC32MX440F512H-80I/MR Microchip Technology 사용처: USB HID Peripheral Devices, Embedded Data Logger PIC32MX340F512HT-80I/MR Microchip Technology 사용처: USB HID Peripheral Devices, Home Automation Gateway PIC32MX450F256HT-80I/MR Drop-in for lower Flash need; same peripherals 사용처: Industrial Control HMI Panels, USB Audio Device (Headset / DAC), Low-Cost Graphical LCD Interface PIC32MX460F512LT-80I/MR Adds Ethernet for networked HMI 사용처: Industrial Control HMI Panels, USB Audio Device (Headset / DAC), Home Automation Gateway, Low-Cost Graphical LCD Interface PIC32MX440F256HT-80I/MR Microchip Technology 사용처: Embedded Data Logger
What is the maximum CPU clock speed of the PIC32MX440F512HT-80I/MR?
The PIC32MX440F512HT-80I/MR runs the MIPS32 M4K core at up to 80 MHz. According to the Microchip PIC32MX3XX/4XX family datasheet (DS61143), the 80 MHz rating uses the internal 8 MHz FRC multiplied by PLL, and the part delivers 1.56 DMIPS/MHz with single-cycle multiply hardware. Use this rating when budgeting instruction cycles for time-critical interrupt routines.
How much Flash and SRAM does the PIC32MX440F512HT-80I/MR have?
The PIC32MX440F512HT-80I/MR integrates 512 KB of Flash program memory organized as 512K x 8, plus 32 KB of SRAM for data. Flash is split into two banks for runtime updateability, while SRAM supports DMA and dual-buffer USB endpoints directly. This memory size is typical for USB-connected 32-bit designs.
What package does the PIC32MX440F512HT-80I/MR use and how many pins?
The PIC32MX440F512HT-80I/MR ships in a 64-pin VQFN package measuring 9x9 mm with an exposed thermal pad. The "MR" suffix indicates VQFN, while "T" indicates tape-and-reel packaging. The package exposes 53 general-purpose I/O pins plus VDD/VSS, programming, oscillator, and USB pins.
Does the PIC32MX440F512HT-80I/MR support USB OTG?
Yes, the PIC32MX440F512HT-80I/MR integrates a USB 2.0 full-speed On-The-Go controller with on-chip transceiver. According to the PIC32MX3XX/4XX datasheet, it supports device, host, and OTG roles and includes dedicated DP/DM pins that require 90-ohm differential routing for compliance. This eliminates the cost of an external USB PHY.
What is the operating voltage range of the PIC32MX440F512HT-80I/MR?
The PIC32MX440F512HT-80I/MR operates from 2.3 V to 3.6 V, with 3.3 V as the typical design supply. The Microchip datasheet specifies brown-out reset thresholds inside this range and recommends 100 nF ceramic decoupling on every VDD/VSS pair. Operation below 2.3 V is not guaranteed.
Where can I buy the PIC32MX440F512HT-80I/MR online?
The PIC32MX440F512HT-80I/MR is in stock at authorized distributors including DigiKey (DigiKey part number 2092454) and Mouser as of 2026-10-03. Pricing breaks begin around $9.50 USD at qty 1 and step down to roughly $6.20 USD at qty 1000. Lead time for higher quantities is typically 8-12 weeks for factory orders.
What is the price of the PIC32MX440F512HT-80I/MR?
As of 2026-10-03, the PIC32MX440F512HT-80I/MR lists at $9.50 USD at qty 1, $8.75 at qty 10, $7.80 at qty 100, $6.95 at qty 500, and approximately $6.20 at qty 1000 on DigiKey. Volume pricing fluctuates with distributor stock; for OEM quantities above 5,000 units, request a quote directly from Microchip or authorized resellers.
What is the lead time for the PIC32MX440F512HT-80I/MR?
Distributor stock of the PIC32MX440F512HT-80I/MR typically ships same-day from DigiKey or Mouser for quantities under 1,000. For larger volumes, Microchip's factory lead time is 8-12 weeks. As of 2026-10-03, the part shows active lifecycle status with no end-of-life announcement, so long-term supply should remain stable.
PIC32MX440F512HT-80I/MR vs PIC32MX440F512H-80I/MR - what is the difference?
The PIC32MX440F512HT-80I/MR is identical in die and silicon to the PIC32MX440F512H-80I/MR; the trailing "T" indicates tape-and-reel packaging versus the tray-packaged "H" variant. Both share the same 64-VQFN (9x9) footprint, 80 MHz clock, 512 KB Flash, 32 KB RAM, and USB-OTG. The T-suffix is preferred for high-volume SMT assembly, while the H-suffix suits low-volume prototyping.
What is the difference between PIC32MX440F512HT-80I/MR and PIC32MX440F512HT-80I/PT?
The PIC32MX440F512HT-80I/MR uses a 64-pin VQFN (9x9 mm) package, while the PIC32MX440F512HT-80I/PT uses a 64-pin TQFP (10x10 mm) package. Both share identical silicon, Flash, RAM, peripherals, and pinout, but the VQFN offers a smaller PCB footprint and lower thermal resistance, while the TQFP is easier to hand-solder and inspect during prototyping.
When should I choose PIC32MX440F512HT-80I/MR over an STM32 equivalent?
Choose the PIC32MX440F512HT-80I/MR when you need USB-OTG on-chip, a mature MPLAB X toolchain, and code/IP reuse from existing PIC24/dsPIC designs. Choose an STM32F4 equivalent instead if you need higher core performance (168 MHz+), more RAM, or a Cortex-M ecosystem. The PIC32MX440 part shines in cost-sensitive USB device applications with established Microchip firmware stacks.
Is PIC32MX440F512HT-80I/MR suitable for USB audio applications?
Yes, the PIC32MX440F512HT-80I/MR's integrated USB-OTG plus DMA and dual I2S channels make it suitable for USB audio class designs up to 48 kHz/16-bit. The 80 MHz core and 32 KB SRAM comfortably handle a USB audio device stack with sample-rate conversion. For 24-bit/96 kHz USB audio, upgrade to a PIC32MX470 or PIC32MZ part with more RAM.
What is the best drop-in replacement for the PIC32MX440F512HT-80I/MR?
The most direct drop-in replacements for the PIC32MX440F512HT-80I/MR are PIC32MX440F512H-80I/MR (same VQFN-64, tray packaging) and PIC32MX450F256HT-80I/MR (lower Flash at 256 KB but same package and peripherals). All three share the 64-VQFN footprint and pinout, so no PCB rework is required. Verify the lower Flash variant against your code-size needs before substituting.
Where can I download the PIC32MX440F512HT-80I/MR datasheet PDF?
The official PIC32MX3XX/4XX family datasheet (DS61143) PDF is hosted at https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/61143H.pdf. The datasheet covers electrical characteristics, pinout, peripheral configuration, and programming specifications for all PIC32MX440 variants including this MR part. Always refer to the latest revision letter from Microchip.
Where do I find the PIC32MX440F512HT-80I/MR pinout diagram?
The PIC32MX440F512HT-80I/MR pinout is documented in the PIC32MX3XX/4XX family datasheet (DS61143) starting in the pin diagrams section. The 64-VQFN package assigns pins 1-53 to I/O and peripherals, with the remaining pins dedicated to VDD, VSS, OSC, PGECx/PGEDx, USB DP/DM, and the exposed pad. Refer to the package diagram for the exact pin-1 orientation.

엔지니어링 참조 데이터: PIC32MX440F512HT-80I/MR — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the PIC32MX440F512HT-80I/MR when you need a 32-bit MIPS MCU with integrated USB-OTG, 512 KB Flash for full USB class stacks, and the small PCB footprint of a 64-VQFN (9x9) package. Pick the PIC32MX440F512H-80I/MR instead if you prefer tray packaging for hand-built prototypes - the silicon and footprint are identical. Pick the PIC32MX440F256HT-80I/MR if your firmware fits in 256 KB and you want ~12% BOM cost savings. Switch to the PIC32MX460F512LT-80I/MR if you need integrated Ethernet MAC and CAN for industrial networking. Use the PIC32MX340F512HT-80I/MR when USB is unnecessary and you want the lowest cost in the family while keeping the same footprint.

대체품과의 비교

파라미터 이 제품 PIC32MX440F512H-80I/MR PIC32MX440F512HT-80I/PT PIC32MX440F256HT-80I/MR PIC32MX340F512HT-80I/MR PIC32MX460F512LT-80I/MR
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 64-VQFN (9x9) 64-VQFN (9x9) - same 64-TQFP (10x10) - different footprint, same pinout 64-VQFN (9x9) - same 64-VQFN (9x9) - same 64-VQFN (9x9) - same
Core Clock 80 MHz 80 MHz 80 MHz 80 MHz 80 MHz 80 MHz
Flash Memory 512 KB 512 KB 512 KB 256 KB 512 KB 512 KB
SRAM 32 KB 32 KB 32 KB 32 KB 32 KB 32 KB
USB OTG Yes Yes Yes Yes No Yes
Ethernet MAC No No No No No Yes
CAN No No No No No Yes
Temperature Range -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C
Unit Price (qty 1) $9.50 $9.50 (approx) $9.50 (approx) $8.40 (approx) $8.80 (approx) $10.20 (approx)

주요 차별점

  • Integrated USB-OTG with on-chip transceiver (vs PIC32MX340F512HT-80I/MR)
  • Higher Flash density for complex USB stacks (vs PIC32MX440F256HT-80I/MR)
  • Easier hand-soldering alternative available (vs PIC32MX440F512HT-80I/PT)

설계 노트

The PIC32MX440F512HT-80I/MR requires decoupling on every VDD/VSS pin pair, plus an additional 10 uF bulk capacitor near the IC. Place a 100 nF ceramic capacitor within 2 mm of each VDD pin to suppress switching noise from the internal core logic and PLL. The AVDD/AVSS pair serving the 10-bit ADC deserves its own low-pass filter (10 ohm + 100 nF) to keep ADC readings clean; sharing the digital VDD trace can inject switching noise.

Route the USB DP/DM pair as a 90-ohm differential impedance, matched within 150 mil length mismatch. Place the ESD protection array (e.g. USBLC6-2SC6) within 3 mm of the USB connector, and route the VBUS line to pin 13 via a divider to feed the internal USB transceiver's voltage detector. The 64-VQFN exposed thermal pad must be soldered to a continuous ground copper pour with multiple thermal vias to meet the datasheet thermal resistance and provide mechanical strength.

Do not skip the configuration bits (fuses) programming step - the PIC32MX440 ships with all analog and digital pins disabled by default. Always set the JTAG/Trace pin mux carefully: pins RG13/RC14/RG12/RG14 default to JTAG functions and must be reassigned via CFGCON if used as GPIO. Lastly, leave at least one ICSP header footprint on the prototype board even for production designs - field firmware updates require the PGECx/PGEDx pins to be accessible.

규정 준수 정보

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

RoHS and lead-free compliant per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified (PIC32MX does not offer automotive Q100 variants).

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

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