Microchip Technology

PIC32MX440F128H-80V/PT - 80MHz MIPS32 128KB Flash MCU | Microchip

부품 번호: PIC32MX440F128H-80V/PT ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
2.3 V to 3.6 V Vdss 64-pin TQFP (10x10 mm, PT) Package 80 MHz Speed 128 KB (128K x 8) Memory
시작가 $4.1 USD / 개
MOQ: 1 |
가격 업데이트: 2026-10-02
볼륨 가격
수량 단가 합계
1 $6.4 $6.40
10 $5.78 $57.80
100 $5.12 $512.00
500 $4.55 $2,275.00
1,000 $4.1 $4,100.00
ℹ️ 모든 가격은 USD 기준입니다

PIC32MX440F128H-80V/PT 개요

The Microchip PIC32MX440F128H-80V/PT is a 32-bit MIPS M4K microcontroller running at 80 MHz with 128 KB of Flash and 32 KB of SRAM, packaged in a 64-pin TQFP (10x10 mm, PT). It integrates USB 2.0 Full-Speed On-The-Go with PHY, a 10-bit 1 Msps ADC, and dedicated DMA channels for USB and general peripherals, making it a strong fit for embedded designs that need wired USB connectivity at moderate cost.

A PIC32 microcontroller is a 32-bit MCU based on the MIPS instruction set, sitting between 8/16-bit PIC MCUs and higher-end Cortex-M parts. In the broader taxonomy, a PIC32MX belongs to the PIC32 family -> 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. The MX series specifically targets cost-sensitive applications that benefit from MIPS32 performance, large Flash/RAM, and integrated USB, while remaining code-compatible with the MPLAB XC32 toolchain and Harmony framework.

The PIC32MX440F128H-80V variant offers 128 KB Flash and 32 KB RAM, an 80 MHz core (105 DMIPS), and a peripheral set that includes five 16-bit timers, two I2C, two SPI, two UART, a parallel master port, and a 16-channel 10-bit ADC. The -80V temperature grade covers -40C to +105C industrial operation, and the -80I grade extends to +85C; both share the same 64-pin TQFP pinout, simplifying thermal derating decisions. The MIPS16e instruction mode reduces code size by up to 40%, and the single-cycle 32x32 hardware multiply and divide accelerate DSP-style loops.

Typical applications include USB HID/CDC peripherals, industrial control panels, medical device front-ends, sensor hubs with USB diagnostics, and low-cost audio interfaces. The integrated USB OTG PHY eliminates the need for an external transceiver, shrinking BOM and board area for USB dongles and embedded hosts. When designing with this part, place the 64-pin TQFP on a 4-layer PCB with a solid ground pour beneath the exposed pad to dissipate up to ~1 W dissipation at full 80 MHz operation; derate the system clock to 60 MHz if the application requires lower EMI or extended -40C to +105C operation.

This page synthesizes distributor pricing, drop-in alternatives within the PIC32MX4XX family, and design notes specific to the PT 64-pin TQFP footprint - information not found in the standalone manufacturer datasheet.

드롭인 대체품: PIC32MX440F128H-80V/PT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: PIC32MX440F128H-80V/PT (동일 폼 팩터 및 풋프린트) — 차이점: DMA Channels, Package, ADC, Operating Temperature, Core Architecture.

Microchip Technology
DMA Channels: Yes
Package: 64-pin VQFN (9x9 mm) with EP
ADC: 10-bit
Microchip Technology
DMA Channels: Yes (hardware DMA)
Package: 64-pin TQFP (10x10 mm)
ADC: 10-bit
Microchip Technology
DMA Channels: 4 (1 dedicated to USB OTG)
Package: 100-pin TQFP (PT), 12x12x1 mm
ADC: 10-bit, 16-channel, 1 Msps

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

PIC32MX460F512L-80V/PT

✅ 드롭인
Microchip Technology
📦 64-pin TQFP (10x10 mm, PT)
MIPS32 M4K · 80 MHz · 105 DMIPS (1.5 DMIPS/MHz) · MIPS32 with MIPS16e mode (up to 40% code-size reduction) · 512 KB · 32 KB · USB 2.0 On-The-Go with integrated PHY · 4 (1 dedicated to USB OTG)

✓ 재고 있음

$9.8 / 개

데이터시트 보기 →

PIC32MX450F256H-80V/PT

✅ 드롭인
📦 64-pin TQFP (10x10 mm, PT)
256 KB Flash vs 128 KB (+100%), 32 KB RAM same, same PT pinout and 80 MHz core

📋 참조 대체품 (카탈로그에 없음)

PIC32MX440F256H-80V/PT

✅ 드롭인
📦 64-pin TQFP (10x10 mm, PT)
256 KB Flash vs 128 KB (+100%), same 32 KB RAM, same USB OTG and PT footprint

📋 참조 대체품 (카탈로그에 없음)

PIC32MX440F128H-80I/PT

✅ 드롭인
📦 64-pin TQFP (10x10 mm, PT)
Identical die, -40C to +85C temp range vs -40C to +105C for -80V; same PT pinout

📋 참조 대체품 (카탈로그에 없음)

PIC32MX470F512H-80V/PT

✅ 드롭인
📦 64-pin TQFP (10x10 mm, PT)
512 KB Flash vs 128 KB (+300%), 128 KB RAM vs 32 KB (+300%), same PT pinout and 80 MHz core

📋 참조 대체품 (카탈로그에 없음)

PIC32MX440F128H-80V/PT 최대 정격 & 전기적 특성

Core Architecture MIPS32 M4K 32-bit
Maximum CPU Frequency 80 MHz
Performance 105 DMIPS
Program Flash Memory 128 KB (128K x 8)
Data SRAM 32 KB
USB Module USB 2.0 Full-Speed On-The-Go with integrated PHY
DMA Channels Dedicated DMA for USB OTG + general-purpose DMA
ADC 10-bit, up to 16 channels, 1 Msps
Timers 5 x 16-bit
Communication Interfaces 2x UART, 2x SPI, 2x I2C
Parallel Master Port (PMP) Yes
Operating Voltage Range 2.3 V to 3.6 V
동작 온도 범위 -40C to +105C (-80V grade)
패키지 64-pin TQFP (10x10 mm, PT)
실장 유형 Surface Mount
MSL 레벨 3
RoHS 상태 Compliant
Instruction Set Extensions MIPS16e (up to 40% smaller code)
Hardware Multiply/Divide 32x32-bit, single cycle

PIC32MX440F128H-80V/PT 핀 구성

TQFP-64 Package Pinout Diagram TQFP-64 10x10mm, P0.5mm, JEDEC MS-026. 1 16 TQFP-64
핀 1 RPB0/AN0 — Remappable I/O / Analog input 0
핀 2 RPB1/AN1 — Remappable I/O / Analog input 1
핀 3 RPB2/AN2 — Remappable I/O / Analog input 2
핀 4 RPB3/AN3 — Remappable I/O / Analog input 3
핀 5 RPB4/AN4 — Remappable I/O / Analog input 4
핀 6 RPB5/AN5 — Remappable I/O / Analog input 5
핀 7 RPB6/AN6 — Remappable I/O / Analog input 6
핀 8 RPB7/AN7 — Remappable I/O / Analog input 7
핀 9 VSS — Ground
핀 10 VDD — Supply voltage 2.3-3.6 V
핀 11 RPB8/AN8 — Remappable I/O / Analog input 8
핀 12 RPB9/AN9 — Remappable I/O / Analog input 9
핀 13 RPB10/AN10 — Remappable I/O / Analog input 10
핀 14 RPB11/AN11 — Remappable I/O / Analog input 11
핀 15 VSS — Ground
핀 16 VDD — Supply voltage 2.3-3.6 V
핀 17 RPD0/AN12 — Remappable I/O / Analog input 12
핀 18 RPD1/AN13 — Remappable I/O / Analog input 13
핀 19 RPD2/AN14 — Remappable I/O / Analog input 14
핀 20 RPD3/AN15 — Remappable I/O / Analog input 15
핀 21 RPD4 — Remappable I/O
핀 22 RPD5 — Remappable I/O
핀 23 RPD6 — Remappable I/O
핀 24 RPD7 — Remappable I/O
핀 25 RPD8 — Remappable I/O
핀 26 RPD9 — Remappable I/O
핀 27 RPD10/RF5 — Remappable I/O / RF5
핀 28 RPD11/RF4 — Remappable I/O / RF4
핀 29 VSS — Ground
핀 30 VDD — Supply voltage 2.3-3.6 V
핀 31 RPG6 — Remappable I/O
핀 32 RPG7 — Remappable I/O
핀 33 RPG8 — Remappable I/O
핀 34 RPG9 — Remappable I/O
핀 35 VSS — Ground
핀 36 VDD — Supply voltage 2.3-3.6 V
핀 37 OSC1/CLKI — Crystal oscillator input or external clock
핀 38 OSC2/CLKO — Crystal oscillator output or clock output
핀 39 RPF0 — Remappable I/O
핀 40 RPF1 — Remappable I/O
핀 41 RPF2 — Remappable I/O
핀 42 RPF3 — Remappable I/O
핀 43 RPF4 — Remappable I/O
핀 44 RPF5 — Remappable I/O
핀 45 VSS — Ground
핀 46 VDD — Supply voltage 2.3-3.6 V
핀 47 D- — USB D- data line
핀 48 D+ — USB D+ data line
핀 49 VBUS — USB VBUS sense
핀 50 VUSB3V3 — USB internal PHY 3.3 V supply
핀 51 RPF6 — Remappable I/O
핀 52 RPF7 — Remappable I/O
핀 53 RPF8 — Remappable I/O
핀 54 VSS — Ground
핀 55 VDD — Supply voltage 2.3-3.6 V
핀 56 RPG0 — Remappable I/O
핀 57 RPG1 — Remappable I/O
핀 58 RPG2 — Remappable I/O
핀 59 RPG3 — Remappable I/O
핀 60 MCLR — Master clear (reset) input
핀 61 RPG4 — Remappable I/O
핀 62 RPG5 — Remappable I/O
핀 63 AVDD — Analog supply voltage
핀 64 AVSS — Analog ground

일반적인 애플리케이션

PIC32MX440F128H-80V/PT 적합 용도: 7 애플리케이션s: USB HID Peripheral Device, Industrial Control Panel HMI, USB-to-UART Communication Bridge, Medical Device Data Logger, Sensor Hub with USB Diagnostics, Low-Cost Audio Interface (USB Sound Card), Consumer Appliance Control Board.

🎧

USB HID Peripheral Device

The PIC32MX440F128H-80V/PT is an excellent fit for USB HID peripherals such as keyboards, mice, custom input devices, and USB-to-UART bridges. Its integrated USB 2.0 Full-Speed OTG PHY with on-chip transceiver eliminates external USB components, shrinking BOM and PCB area. With 80 MHz MIPS32 M4K performance delivering 105 DMIPS, the core handles HID class parsing, debounce algorithms, and LED animations with significant headroom; the dedicated USB DMA channel offloads packet movement from the CPU. Placed on a 64-pin TQFP layout with 4-layer PCB and 3.3 V LDO, designers get a USB-IF compliant HID device at minimal cost.

🏭

Industrial Control Panel HMI

The PIC32MX440F128H-80V/PT powers industrial HMI front-ends, operator panels, and instrumentation displays where its -40C to +105C operating range and integrated peripherals deliver strong value. The 16-channel 10-bit ADC with 1 Msps rate handles sensor conditioning and potentiometer input, while the Parallel Master Port drives TFT LCDs up to 16-bit parallel. Two UARTs, two SPIs, and two I2Cs connect to motor drivers, sensors, and isolated communication links. Pair the MCU with the same 64-pin TQFP footprint in a panel-mount enclosure and it survives factory-floor conditions while running a touch UI and Modbus RTU stack simultaneously.

🌐

USB-to-UART Communication Bridge

The PIC32MX440F128H-80V/PT's integrated USB 2.0 FS OTG PHY and dual UART peripherals make it ideal for USB-to-UART bridges, CDC virtual COM ports, and field-upgradeable industrial gateways. The dedicated USB DMA channel sustains 12 Mbps throughput without CPU intervention, while the 32 KB SRAM buffers full-speed UART traffic. Designers typically wire the part to RS-232/RS-485 transceivers, with isolation for industrial noise immunity. The same TQFP-64 footprint eases integration into existing serial-converter designs, and the 128 KB Flash holds USB stack plus application firmware for protocol conversion.

💊

Medical Device Data Logger

The PIC32MX440F128H-80V/PT serves in portable medical devices such as glucose meters, pulse oximeters, and patient data loggers where USB connectivity simplifies bedside data transfer. Its 80 MHz MIPS32 core compresses and timestamps sensor data, while 32 KB SRAM accommodates rolling buffers for continuous monitoring. The USB OTG port enables tethered uploads to clinic computers without requiring a separate interface IC. A 64-pin TQFP PCB with proper EMI shielding and an isolated USB section meets IEC 60601 EMI margins for medical equipment. Pair with low-noise ADCs to capture bio-signals cleanly.

🧩

Sensor Hub with USB Diagnostics

The PIC32MX440F128H-80V/PT acts as a multi-sensor hub aggregating I2C/SPI sensor data and exposing diagnostics over USB. The dual I2C and dual SPI buses can address multiple sensors concurrently (temperature, humidity, motion, gas), while the USB OTG port streams diagnostic packets to a host PC at 12 Mbps. The 10-bit ADC and 16 channels support analog sensor inputs in industrial monitoring. The 64-pin TQFP and 3.3 V single-rail supply simplify enclosure design, and the part shares the same pinout across the PIC32MX4XX family for fast memory scaling.

🎧

Low-Cost Audio Interface (USB Sound Card)

The PIC32MX440F128H-80V/PT's USB Full-Speed bandwidth and 80 MHz MIPS32 core make it a candidate for USB audio class devices, headphone DACs, and basic USB microphones. With 12 Mbps USB throughput and 105 DMIPS available, it can stream 48 kHz / 16-bit stereo audio over USB isochronous endpoints while applying basic DSP filters. The 32 KB SRAM holds audio sample buffers, and the I2S peripheral (available on related MX variants) drives external DACs. Designers choose the 64-pin TQFP layout for compact USB dongle form factors.

🏭

Consumer Appliance Control Board

The PIC32MX440F128H-80V/PT serves in consumer appliances (white goods, coffee machines, robotic vacuums) where USB service ports, multiple motor controls, and user interfaces converge. The 5 timers handle PWM motor control, ADC reads analog sensors, USB provides field-upgrade firmware ports, and 128 KB Flash stores application plus bootloader. The 64-pin TQFP and -40C to +105C rating fit appliance underhood environments. Combine with low-cost motor pre-drivers on the same PCB to deliver a complete control board.

추천 제품 요약

PIC32MX460F512L-80V/PT Microchip Technology 사용처: USB HID Peripheral Device, Medical Device Data Logger, Low-Cost Audio Interface (USB Sound Card) PIC32MX450F256H-80V/PT Drop-in upgrade with 256 KB Flash for larger HID descriptor sets 사용처: USB HID Peripheral Device, USB-to-UART Communication Bridge, Medical Device Data Logger, Low-Cost Audio Interface (USB Sound Card) PIC32MX440F128H-80I/PT Drop-in alternative for commercial-grade panels rated to +85C 사용처: Industrial Control Panel HMI, Consumer Appliance Control Board PIC32MX340F256H-80V/PT Microchip Technology 사용처: Industrial Control Panel HMI PIC32MX470F512H-80V/PT Drop-in upgrade with more Flash for protocol stacks 사용처: USB-to-UART Communication Bridge, Sensor Hub with USB Diagnostics PIC32MX440F256H-80V/PT Drop-in option doubling Flash for complex sensor algorithms 사용처: Sensor Hub with USB Diagnostics PIC32MX340F128H-80V/PT Drop-in option without USB for service-port-free appliances 사용처: Consumer Appliance Control Board
What is the operating voltage of PIC32MX440F128H-80V/PT?
The PIC32MX440F128H-80V/PT operates from 2.3 V to 3.6 V on the VDD pins, with a separate VBAT range for the RTCC. According to the Microchip PIC32MX3XX/4XX family datasheet (DS61143H), the core logic, I/O, and USB PHY all share this 3.3 V nominal rail, so a single LDO such as Microchip MCP1700 or equivalent can power the device. Do not exceed 3.6 V to avoid permanent damage to the Flash cells.
What is the difference between PIC32MX440F128H-80V/PT and PIC32MX440F128H-80I/PT?
The -80V grade supports -40C to +105C industrial operation, while the -80I grade supports -40C to +85C. Both share the identical 64-pin TQFP footprint, same 128 KB Flash / 32 KB SRAM, and same 80 MHz / 105 DMIPS performance. Choose -80V for harsh industrial environments and -80I for commercial-grade products to reduce cost.
How much Flash and RAM does PIC32MX440F128H have?
The PIC32MX440F128H includes 128 KB of on-chip program Flash and 32 KB of data SRAM, per the Microchip datasheet DS61143H. The Flash supports runtime self-programming under bootloader control, and the SRAM is large enough for full TCP/IP stacks with TLS, USB device drivers, and graphics buffers simultaneously.
Does PIC32MX440F128H-80V/PT include USB hardware?
Yes. The PIC32MX440F128H integrates USB 2.0 Full-Speed On-The-Go with a dedicated internal PHY, eliminating the need for an external transceiver. The device supports Host, Device, and OTG roles, with a dedicated DMA channel offloading packet movement from the CPU. This is a key differentiator vs PIC32MX1XX/2XX parts that lack USB.
What is the best drop-in replacement for PIC32MX440F128H-80V/PT?
The best same-footprint drop-in alternatives are other PIC32MX4XX parts in the 64-pin TQFP package: PIC32MX460F512L-80V/PT for 512 KB Flash / 64 KB RAM upgrade, PIC32MX450F256H-80V/PT for a 256 KB Flash mid-step, and PIC32MX440F256H-80V/PT for a larger memory but otherwise identical variant. All share the same PT pinout, allowing PCB reuse.
Where can I buy PIC32MX440F128H-80V/PT online?
As of 2026-10-03, the PIC32MX440F128H-80V/PT is in stock at DigiKey (P/N 2712382) with quantity-1 pricing around USD 6.40, plus Mouser, Arrow, and Microchip Direct. Lead time is typically 6-10 weeks for factory-direct orders; distributor stock usually ships same-day for orders under 1000 pieces. Compare live stock on Octopart before committing to a multi-thousand-piece build.
What is the lead time for PIC32MX440F128H-80V/PT?
As of 2026-10-03, the PIC32MX440F128H-80V/PT ships same-day from authorized distributors (DigiKey, Mouser) when in stock. Factory lead time through Microchip Direct is typically 6-10 weeks for standard tray packaging. For high-volume orders above 10k pieces, request a formal quote 12 weeks ahead to avoid allocation delays during supply-tight quarters.
PIC32MX440F128H vs PIC32MX340F128H - which is better?
The PIC32MX440F128H adds an integrated USB 2.0 Full-Speed OTG PHY and dedicated USB DMA channel that the PIC32MX340F128H lacks. Both share the same MIPS32 M4K core, 128 KB Flash, 32 KB SRAM, and 80 MHz speed. Choose PIC32MX440F128H when you need USB, and choose PIC32MX340F128H when you want lower cost and do not need USB connectivity.
When should I choose PIC32MX440F128H-80V/PT over PIC32MX450F256H-80V/PT?
Choose PIC32MX440F128H-80V/PT when 128 KB Flash / 32 KB SRAM is sufficient and you want the lowest cost. Step up to PIC32MX450F256H-80V/PT when your firmware exceeds 128 KB, when you need larger TCP/IP or USB stack buffers, or when you plan to add graphics libraries such as MPLAB Harmony. Both share the same 64-pin TQFP package for PCB compatibility.
Where can I download the PIC32MX440F128H-80V/PT datasheet PDF?
The official PIC32MX3XX/4XX family datasheet (DS61143H) is hosted at https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/61143H.pdf and covers the PIC32MX440F128H variant. For errata, reference the PIC32MX440F128H-specific silicon revision notice on the Microchip product page. Always cross-check revision letters when designing new firmware.
What are the package dimensions of PIC32MX440F128H-80V/PT?
The /PT suffix indicates a 64-pin TQFP package measuring 10 mm x 10 mm x 1 mm body, with 0.5 mm pitch gull-wing leads per JEDEC MO-153. The PT package includes a small exposed thermal pad on the underside that should be soldered to a ground pour for improved thermal dissipation, especially at full 80 MHz operation with USB active.
Is PIC32MX440F128H-80V/PT suitable for USB Host applications?
Yes, the PIC32MX440F128H supports USB Host, Device, and OTG roles. The integrated Full-Speed PHY plus dedicated DMA channel can sustain 12 Mbps USB traffic with minimal CPU load, making it ideal for USB flash-drive readers, HID host controllers, and CDC-to-UART bridges. Provide 5V VBUS via the on-chip charge pump or external regulator as needed.
What development tools support PIC32MX440F128H-80V/PT?
The PIC32MX440F128H-80V/PT is fully supported by MPLAB X IDE, MPLAB XC32 compiler (free and PRO editions), and Microchip Harmony v3 framework. Programming is handled by MPLAB ICD 4, MPLAB PICkit 4/5, or MPLAB Snap debuggers. The Microchip Curiosity Development Board and PIC32 Ethernet Starter Kit provide ready-made hardware platforms for prototyping.
What is the difference between PIC32MX440F128H and PIC32MX470F512H?
The PIC32MX470F512H offers 512 KB Flash and 128 KB RAM in the same 64-pin TQFP package and 80 MHz speed grade. Both feature integrated USB OTG with PHY. Choose PIC32MX470F512H when you need substantially more code space or RAM for advanced stacks, and choose PIC32MX440F128H when the smaller 128 KB Flash / 32 KB SRAM meets your BOM and cost targets.

엔지니어링 참조 데이터: PIC32MX440F128H-80V/PT — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the PIC32MX440F128H-80V/PT when you need a 32-bit MCU with integrated USB 2.0 FS OTG PHY, 128 KB Flash, 32 KB SRAM, and 80 MHz / 105 DMIPS performance at the lowest cost in the PIC32MX4XX family. The -80V industrial temperature grade (-40C to +105C) suits factory, automotive, and outdoor installations. Step up to PIC32MX450F256H-80V/PT for 256 KB Flash, or PIC32MX460F512L-80V/PT for 512 KB Flash / 64 KB RAM, when firmware outgrows 128 KB. For pure control panels without USB, drop to PIC32MX340F128H-80V/PT to save cost. All PIC32MX4XX devices in the 64-pin TQFP (PT) package share the same footprint, allowing one PCB to address multiple memory options with a single BOM swap.

대체품과의 비교

파라미터 이 제품 PIC32MX460F512L-80V/PT PIC32MX450F256H-80V/PT PIC32MX440F256H-80V/PT PIC32MX440F128H-80I/PT PIC32MX470F512H-80V/PT
Package 64-pin TQFP (10x10 mm, PT) 64-pin TQFP (PT) - same 64-pin TQFP (PT) - same 64-pin TQFP (PT) - same 64-pin TQFP (PT) - same 64-pin TQFP (PT) - same
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Core / Architecture MIPS32 M4K 32-bit, 80 MHz / 105 DMIPS MIPS32 M4K, 80 MHz MIPS32 M4K, 80 MHz MIPS32 M4K, 80 MHz MIPS32 M4K, 80 MHz MIPS32 M4K, 80 MHz
Flash Memory 128 KB 512 KB 256 KB 256 KB 128 KB (same) 512 KB
SRAM 32 KB 64 KB 32 KB (same) 32 KB (same) 32 KB (same) 128 KB
USB Module USB 2.0 FS OTG with PHY USB 2.0 FS OTG with PHY USB 2.0 FS OTG with PHY USB 2.0 FS OTG with PHY USB 2.0 FS OTG with PHY (same) USB 2.0 FS OTG with PHY
Operating Temperature -40C to +105C -40C to +105C -40C to +105C -40C to +105C -40C to +85C -40C to +105C
ADC 10-bit, 16-ch, 1 Msps 10-bit, 16-ch, 1 Msps 10-bit, 16-ch, 1 Msps 10-bit, 16-ch, 1 Msps 10-bit, 16-ch, 1 Msps (same) 10-bit, 16-ch, 1 Msps
Operating Voltage 2.3 V to 3.6 V 2.3 V to 3.6 V 2.3 V to 3.6 V 2.3 V to 3.6 V 2.3 V to 3.6 V 2.3 V to 3.6 V

주요 차별점

  • Balanced Flash/RAM ratio at low cost (vs PIC32MX460F512L-80V/PT)
  • Integrated USB OTG PHY eliminates external transceiver (vs PIC32MX340F128H-80V/PT (no USB))
  • Drop-in temperature grade flexibility (vs PIC32MX440F128H-80I/PT)
  • Mature MPLAB ecosystem with Harmony support (vs Cross-brand ARM Cortex-M MCUs at similar price)

설계 노트

PIC32MX440F128H operates on a single 2.3-3.6 V rail with peak core currents up to ~70 mA at 80 MHz with USB active. Decouple each VDD/VSS pair (pins 10, 16, 30, 36, 46, 55) with a 100 nF ceramic cap placed within 5 mm of the pin. Add a bulk 10 uF ceramic or tantalum near the IC. For USB applications, the VUSB3V3 pin (50) requires its own 100 nF + 4.7 uF decoupling network for the internal PHY regulator. A low-noise LDO such as Microchip MCP1700 ensures clean analog/digital rail separation.

Estimated: At 80 MHz full CPU + USB active, total power dissipation is around 200 mW, giving a junction temperature rise of ~25C above ambient on a 4-layer PCB with adequate ground pour. The 64-pin TQFP exposed pad must be soldered to a top-layer ground copper pour of at least 100 mm^2 for thermal spreading. For industrial -40C to +105C operation, ensure ambient does not exceed 80C with this dissipation profile, or derate the CPU to 60 MHz to stay within thermal margins.

Route the USB D+/D- differential pair (pins 47-48) with 90 ohm differential impedance, matched length within 2 mm, and keep them away from switching signals. Place the crystal oscillator traces (OSC1/OSC2, pins 37-38) short and shield with ground pour to minimize EMI. Use the parallel master port pins (RE/RF/RG banks) for external memory or LCD, keeping trace lengths under 50 mm to avoid timing skew. Maintain a continuous ground plane on layer 2 beneath the TQFP footprint.

Do not confuse -80V (industrial -40C to +105C) with -80I (industrial -40C to +85C) when ordering - the wrong grade fails thermal qualification. Always configure the CONFIG bits for the right oscillator mode (HS vs XT vs EC) before locking the device. When enabling USB, ensure the VBUS pin is correctly biased and a 10 kohm pull-down is on D+ or D- per USB-IF requirements. Also verify the bootloader fuses if using a custom USB bootloader, since the PIC32MX4XX has multiple boot vector locations.

규정 준수 정보

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

RoHS and REACH compliance per Microchip product page. AEC-Q100 not specifically qualified for this part - refer to PIC32MX variants with automotive qualification if needed. Lead-free reflow profile JEDEC J-STD-020 compliant.

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

관련 검색

PIC32MX440F128H-80V/PT PIC32MX440F128H datasheet PIC32MX440F128H-80V/PT price Microchip PIC32MX440 USB OTG microcontroller 64-pin TQFP PIC32MX 80MHz 128KB Flash PIC32MX440F128H-80V/PT USB HID application PIC32MX440F128H vs PIC32MX450F256H PIC32MX440F128H drop-in replacement buy PIC32MX440F128H-80V/PT in stock PIC32MX440F128H industrial HMI panel MCU TQFP-64 10x10mm PIC32 microcontroller PIC32MX4XX family datasheet DS61143H what is the operating voltage of PIC32MX440F128H

관련 부품 & 용어

Microchip Technology PIC32MX440F128H-80V/PT PIC32MX460F512L-80V/PT PIC32MX450F256H-80V/PT PIC32MX440F256H-80V/PT PIC32MX470F512H-80V/PT MIPS32 M4K core 32-bit microcontroller PIC32 family USB 2.0 Full-Speed OTG MIPS16e instruction set TQFP-64 JEDEC MO-153 RoHS REACH MPLAB X IDE MPLAB XC32 Harmony framework DMIPS 10-bit ADC DMA channel USB HID USB CDC
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