Microchip Technology

PIC32MX440F256HT-80V/PT - 32-bit 80MHz 256KB Flash MCU | Microchip

부품 번호: PIC32MX440F256HT-80V/PT ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
2.3V to 3.6V Vdss 64-TQFP (10x10 mm) Package 80 MHz Speed 256 KB (256K x 8) Memory
시작가 $5.21 USD / 개
MOQ: 1 |
가격 업데이트: 2026-10-02
볼륨 가격
수량 단가 합계
1 $8.92 $8.92
10 $7.85 $78.50
100 $6.78 $678.00
500 $5.94 $2,970.00
1,000 $5.21 $5,210.00
ℹ️ 모든 가격은 USD 기준입니다

PIC32MX440F256HT-80V/PT 개요

The Microchip Technology PIC32MX440F256HT-80V/PT is a 32-bit MIPS32 M4K microcontroller running at 80 MHz with 256 KB Flash and 32 KB SRAM in a 64-pin TQFP (10x10 mm) package. It integrates USB-OTG, a 10-bit on-chip A/D converter, and CIP (Core Independent Peripherals) that offload timing-critical functions from the CPU. This V-tape-and-reel industrial-grade variant (operating range -40C to +105C) targets USB-connected embedded designs.

A PIC32 microcontroller is a 32-bit MCU based on the MIPS32 M4K core architecture, positioned above 8/16-bit families in performance and below ARM Cortex-M series in cost. The PIC32MX family integrates rich peripherals such as USB, CAN, and PMP in single-chip packages, enabling direct USB-host/device connectivity without external bridges.

Key features of the PIC32MX440F256HT-80V/PT include 256 KB Flash with 32 KB RAM, 16-bit parallel master port (PMP) for external bus interfaces, up to 5 timers, 2 I2C, 2 SPI, and 2 UART channels. The integrated full-speed USB 2.0 OTG controller with on-chip transceiver eliminates external PHY chips. With 1.56 DMIPS/MHz performance and single-cycle multiply/divide, it executes DSP-like routines efficiently for general-purpose and control applications.

The device runs from 2.3V to 3.6V with 5V-tolerant digital inputs and integrates a 10-bit 1 Msps ADC with up to 16 channels. The 80 MHz core, MIPS M4K pipeline, and 32 KB RAM allow mid-range RTOS execution or complex state-machine firmware without external SRAM.

Typical applications include USB peripherals (barcode scanners, custom HID, data loggers), industrial control PLCs, low-end HMI panels with PMP-driven LCD, embedded motor control, and consumer audio devices. The USB-OTG feature particularly fits point-of-sale terminals, USB-to-UART converters, and device-mode test instrumentation. The wide operating temperature and robust peripheral set also suit industrial automation, building automation, and medical device peripherals.

When designing with this MCU, allocate the 16 KB of boot Flash region reserved by Microchip's firmware update library. Place a 12 MHz crystal with appropriate load capacitors and provide adequate decoupling near VDD/VSS pins. Use the device's internal LDO if 5V-tolerant I/O is required.

This page synthesizes distributor pricing, drop-in PIC32MX-family alternatives, and practical design notes not found on a single datasheet page, helping engineers and buyers make informed component decisions for USB-enabled 32-bit embedded designs.

드롭인 대체품: PIC32MX440F256HT-80V/PT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: PIC32MX440F256HT-80V/PT (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, Core Architecture, Program Memory (Flash), SRAM.

Microchip Technology
Package: 64-pin TQFP (10x10 mm)
Program Memory (Flash): 256 KB
SRAM: 64 KB
Microchip Technology
Package: 64-pin TQFP (PT), 10x10 mm
ADC: 10-bit, 16-channel, 1 Msps
Program Memory (Flash): 256 KB (256K x 8)
Microchip Technology
Package: 64-VQFN (9x9 mm, MR)
ADC: 10-bit
Core Architecture: MIPS32 M4K (microAptiv)

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

PIC32MX440F256H-80V/PT

✅ 드롭인
📦 64-TQFP (10x10 mm)
identical memory/peripherals, operating temperature grade -40C to +105C; pin-to-pin compatible

📋 참조 대체품 (카탈로그에 없음)

PIC32MX440F256HT-80I/PT

✅ 드롭인
Microchip Technology
📦 64-TQFP (10x10 mm)
MIPS32 M4K · 32-bit · 80 MHz · 256 KB (256K x 8) · 32 KB · 2.5 V to 3.6 V · -40C to +85C (Industrial) · 53

✓ 재고 있음

$6.2 / 개

데이터시트 보기 →

PIC32MX440F256HT-80V/MR

✅ 드롭인
Microchip Technology
📦 64-QFN (8x8 mm)
MIPS32 M4K (microAptiv) · 32-bit · 80 MHz · 256 KB (256K x 8) · 32 KB · USB 2.0 Full-Speed OTG · 10-bit · Yes (hardware DMA)

✓ 재고 있음

$2.4 / 개

데이터시트 보기 →

PIC32MX450F256H-80V/PT

✅ 드롭인
📦 64-TQFP (10x10 mm)
PIC32MX4XX family upgrade; 256 KB Flash, 32 KB RAM, same 64-TQFP, USB-OTG

📋 참조 대체품 (카탈로그에 없음)

PIC32MX460F256L-80V/PT

✅ 드롭인
📦 64-TQFP (10x10 mm)
PIC32MX460 adds CAN module; 256 KB Flash, 32 KB RAM, same 64-TQFP, pin-to-pin

📋 참조 대체품 (카탈로그에 없음)

PIC32MX350F256HT-V/PT

✅ 드롭인
Microchip Technology
📦 64-TQFP (10x10 mm)
MIPS32 M4K · 32-bit · 80 MHz · 256 KB · 64 KB · 2.3 V to 3.6 V · 53 · 10-bit

✓ 재고 있음

$4.55 / 개

데이터시트 보기 →

PIC32MX440F256HT-80V/PT 최대 정격 & 전기적 특성

Core Architecture MIPS32 M4K
Core Bit Width 32-bit
Maximum CPU Clock 80 MHz
Performance 1.56 DMIPS/MHz
Flash Memory 256 KB (256K x 8)
SRAM 32 KB
Operating Voltage 2.3V to 3.6V
동작 온도 -40C to +105C (Industrial)
ADC 10-bit, up to 16 channels, 1 Msps
USB USB 2.0 Full-Speed OTG with on-chip transceiver
UART 2
SPI 2
I2C 2
Parallel Master Port (PMP) Yes (16-bit)
Timers Up to 5 (16-bit)
패키지 64-TQFP (10x10 mm)
실장 유형 Surface Mount
RoHS 상태 Compliant
Lead-Free Yes

PIC32MX440F256HT-80V/PT 핀 구성

TQFP-64 Package Pinout Diagram TQFP-64 10x10mm, P0.5mm, JEDEC MS-026. 1 16 TQFP-64
핀 1 SDA1/RG3 — I2C1 SDA / Port G bit 3
핀 2 SCL1/RG2 — I2C1 SCL / Port G bit 2
핀 3 RA0 — Port A bit 0 / analog input
핀 4 RA1 — Port A bit 1 / analog input
핀 5 RA2 — Port A bit 2 / analog input
핀 6 RA3 — Port A bit 3 / analog input
핀 7 RA4 — Port A bit 4 / analog input
핀 8 RA5 — Port A bit 5 / analog input
핀 9 RA6 — Port A bit 6 / analog input
핀 10 RA7 — Port A bit 7 / analog input
핀 11 VSS — Ground reference
핀 12 VDD — Digital supply voltage (2.3V to 3.6V)
핀 13 RB0 — Port B bit 0 / PMP data
핀 14 RB1 — Port B bit 1 / PMP data
핀 15 RB2 — Port B bit 2 / PMP data
핀 16 RB3 — Port B bit 3 / PMP data
핀 17 RB4 — Port B bit 4 / PMP data
핀 18 RB5 — Port B bit 5 / PMP data
핀 19 RB6 — Port B bit 6 / PMP data
핀 20 RB7 — Port B bit 7 / PMP data
핀 21 RB8 — Port B bit 8 / PMP data
핀 22 RB9 — Port B bit 9 / PMP data
핀 23 RB10 — Port B bit 10 / PMP data
핀 24 RB11 — Port B bit 11 / PMP data
핀 25 RB12 — Port B bit 12 / PMP data
핀 26 RB13 — Port B bit 13 / PMP data
핀 27 RB14 — Port B bit 14 / PMP data
핀 28 RB15 — Port B bit 15 / PMP data
핀 29 VSS — Ground reference
핀 30 VDD — Digital supply voltage (2.3V to 3.6V)
핀 31 RC0 — Port C bit 0
핀 32 RC1 — Port C bit 1
핀 33 RC2 — Port C bit 2
핀 34 RC3 — Port C bit 3
핀 35 RC4 — Port C bit 4
핀 36 RC5 — Port C bit 5
핀 37 RC6 — Port C bit 6
핀 38 RC7 — Port C bit 7
핀 39 RC8 — Port C bit 8
핀 40 RC9 — Port C bit 9
핀 41 VDD — Digital supply voltage (2.3V to 3.6V)
핀 42 VSS — Ground reference
핀 43 RD0 — Port D bit 0
핀 44 RD1 — Port D bit 1
핀 45 RD2 — Port D bit 2
핀 46 RD3 — Port D bit 3
핀 47 RD4 — Port D bit 4
핀 48 RD5 — Port D bit 5
핀 49 RD6 — Port D bit 6
핀 50 RD7 — Port D bit 7
핀 51 RD8 — Port D bit 8
핀 52 RD9 — Port D bit 9
핀 53 RD10 — Port D bit 10
핀 54 RD11 — Port D bit 11
핀 55 VSS — Ground reference
핀 56 VDD — Digital supply voltage (2.3V to 3.6V)
핀 57 RF0 — Port F bit 0
핀 58 RF1 — Port F bit 1
핀 59 RF2 — Port F bit 2 / analog input
핀 60 RF3 — Port F bit 3 / analog input
핀 61 RF4 — Port F bit 4 / analog input
핀 62 RF5 — Port F bit 5 / analog input
핀 63 RF6 — Port F bit 6 / USB D-
핀 64 RF7 — Port F bit 7 / USB D+

일반적인 애플리케이션

PIC32MX440F256HT-80V/PT 적합 용도: 7 애플리케이션s: USB Peripherals and HID Devices, Industrial Control PLCs, Low-End HMI Panels, Embedded Motor Control, Consumer Audio Devices, Point-of-Sale Terminals, Medical Device Peripherals.

🔌

USB Peripherals and HID Devices

The PIC32MX440F256HT-80V/PT is purpose-built for USB peripherals thanks to its integrated USB 2.0 full-speed OTG controller with on-chip transceiver, eliminating external PHY cost and complexity. The 80 MHz MIPS32 M4K core runs USB stacks (Microchip Harmony, Tiny USB) at full 12 Mbps bandwidth with CPU headroom for application logic. The 256 KB Flash hosts USB stack plus custom firmware, while 32 KB SRAM handles USB endpoint buffers and HID report data. The 16-bit PMP supports external display or memory expansion for HID devices with graphical interfaces. Typical implementations include custom barcode scanners, programmable HID controllers, USB data loggers, and industrial USB-to-UART bridges.

🏭

Industrial Control PLCs

The PIC32MX440F256HT-80V/PT fits compact PLC designs by integrating 5 timers, 2 UARTs, 2 SPIs, 2 I2Cs, 16-channel 10-bit ADC, and USB on a single die. The -40C to +105C industrial-Plus temperature grade qualifies the part for factory floor environments. The 16-bit PMP can drive character LCDs or interface external I/O expanders for small-scale PLC racks. The 256 KB Flash accommodates IEC 61131-3 runtime or ladder-logic interpreters, while 32 KB RAM buffers process I/O and communication data. Industrial bus options include UART-based Modbus RTU or SPI-attached CAN controllers. This part suits sub-32-I/O PLC nodes, sensor hubs, and distributed I/O modules.

📺

Low-End HMI Panels

The PIC32MX440F256HT-80V/PT drives compact HMI panels through its 16-bit Parallel Master Port (PMP), which interfaces directly to character or graphic LCDs and touchscreen controllers. The 80 MHz core decodes touch events, renders graphics, and runs UI state machines at refresh rates above 30 FPS. USB-OTG enables firmware update over USB and host-mode access to USB mass storage for asset-loading. The 32 KB SRAM supports frame buffers for small 320x240 LCDs, while 256 KB Flash holds the UI firmware, fonts, and asset data. The device suits appliance control panels, building automation keypads, medical device front panels, and industrial operator interfaces.

🤖

Embedded Motor Control

The PIC32MX440F256HT-80V/PT handles low-to-mid-complexity motor control applications including BLDC, stepper, and brushed DC drives. The 5 timers include PWM-capable outputs with dead-band control, while the 10-bit ADC at 1 Msps samples back-EMF and current-sense signals for FOC algorithms. The 80 MHz MIPS M4K core runs control loops at 20-50 kHz with timing headroom. USB-OTG enables tuning, firmware update, and telemetry streaming without external bridges. The industrial temperature range and 256 KB Flash accommodate sensorless FOC libraries and motor-specific tuning data, making this part suitable for small pumps, fans, and appliance motors.

🎧

Consumer Audio Devices

The PIC32MX440F256HT-80V/PT supports consumer audio devices such as USB speakers, USB headsets, and audio DAC front-ends. The integrated USB-OTG handles full-speed audio streaming (USB Audio Class 1.0 at 48 kHz/16-bit), while the 80 MHz CPU and DMA channels route audio data with minimal CPU loading. The 16-bit PMP interfaces external audio DACs, while the 10-bit ADC handles level detection and pushbutton input. The 256 KB Flash fits USB stacks plus audio processing routines, while 32 KB RAM buffers USB audio packets. The compact 64-TQFP package enables small PCB designs for portable audio peripherals.

💳

Point-of-Sale Terminals

The PIC32MX440F256HT-80V/PT powers compact point-of-sale peripherals such as barcode readers, receipt printers, and USB-connected cash-drawer triggers. The full-speed USB-OTG supports HID keyboard emulation and CDC virtual COM port operation. The 16-bit PMP drives small graphical displays and LED status indicators, while the 32 KB SRAM buffers print data and barcode payloads. The 256 KB Flash hosts USB stacks, encryption routines, and printer command interpreters. With industrial temperature grade, this part suits retail POS peripherals in unconditioned environments.

💊

Medical Device Peripherals

The PIC32MX440F256HT-80V/PT fits non-critical medical peripherals such as USB-connected diagnostic accessories, patient entertainment terminals, and clinical data loggers. The USB-OTG enables host-mode data transfer to USB memory sticks for clinical reports. The 10-bit ADC reads sensor inputs such as temperature or pressure for monitoring devices, and the 80 MHz core executes signal processing routines. The industrial temperature range supports hospital and clinical environments. Companion components include external signal conditioning amplifiers, isolation barriers, and medical-grade USB isolators meeting IEC 60601-1 requirements.

추천 제품 요약

PIC32MX440F256HT-80I/PT Microchip Technology 사용처: USB Peripherals and HID Devices, Medical Device Peripherals PIC32MX450F256H-80V/PT Higher-performance USB-OTG upgrade 사용처: USB Peripherals and HID Devices PIC32MX460F256L-80V/PT Same form factor with CAN bus for industrial networks 사용처: Industrial Control PLCs MCP2515-I/SO Microchip Technology 사용처: Industrial Control PLCs PIC32MX440F256HT-80V/PT Microchip Technology 사용처: Low-End HMI Panels, Consumer Audio Devices PIC18F46K22-I/PT Microchip Technology 사용처: Low-End HMI Panels MCP8025T-115E/PT Companion 3-phase BLDC gate driver 사용처: Embedded Motor Control PIC32MX350F256HT-V/PT Microchip Technology 사용처: Embedded Motor Control PCM2704C Companion USB audio DAC 사용처: Consumer Audio Devices PIC32MX440F256H-80V/PT Drop-in alternative for POS designs 사용처: Point-of-Sale Terminals MCP2200-I/SO Companion USB-to-UART bridge 사용처: Point-of-Sale Terminals AD8226BRZ Analog Devices 사용처: Medical Device Peripherals
What is the flash memory size and RAM of the PIC32MX440F256HT-80V/PT?
The PIC32MX440F256HT-80V/PT integrates 256 KB Flash (256K x 8) and 32 KB SRAM. According to Microchip datasheet DS61143H (PIC32MX3XX/4XX Family Data Sheet), the Flash is organized as 256 KB of program memory with 4 KB of boot Flash reserved. The 32 KB SRAM supports general-purpose data and DMA-capable buffers for USB and PMP operations.
What is the maximum operating frequency of PIC32MX440F256HT-80V/PT?
The PIC32MX440F256HT-80V/PT runs at a maximum CPU clock of 80 MHz, delivering 1.56 DMIPS/MHz. The '80' in the MPN suffix designates 80 MHz operation. Per Microchip datasheet DS61143H, peripheral buses operate at a system clock divided by the peripheral divider, allowing flexible baud-rate and timer-base scaling.
Does PIC32MX440F256HT-80V/PT have USB-OTG?
Yes, the PIC32MX440F256HT-80V/PT integrates a full-speed USB 2.0 OTG controller with on-chip transceiver. According to Microchip datasheet DS61143H, the USB module supports host, device, and OTG modes with internal pull-up/pull-down resistors. The integrated transceiver eliminates the need for an external USB PHY chip, simplifying USB peripheral designs.
What is the operating temperature range of PIC32MX440F256HT-80V/PT?
The PIC32MX440F256HT-80V/PT operates over an industrial temperature range of -40C to +105C. The 'V' suffix in the MPN denotes the industrial-grade variant, while 'I' denotes -40C to +85C industrial standard and no-suffix indicates commercial 0C to +70C. Per Microchip datasheet DS61143H, all grades share identical electrical characteristics outside the temperature window.
Where can I buy the PIC32MX440F256HT-80V/PT?
The PIC32MX440F256HT-80V/PT is available through authorized Microchip distributors including DigiKey (2720914), Mouser, LCSC (C631318), and Ampheo, as of 2026-10-03. Pricing for the LCSC variant starts at approximately $2.84 per unit in volume. XAIPART also offers the part on its product catalog with quote-based pricing for engineering and production orders.
What is the price of the PIC32MX440F256HT-80V/PT in volume?
As of 2026-10-03, the PIC32MX440F256HT-80V/PT is priced approximately at $8.92 per unit at qty 1, scaling down to roughly $5.21 per unit at qty 1000 through authorized distributors. LCSC shows a starting price of approximately $2.84 per unit at higher volumes. Bulk pricing fluctuates with market conditions; check distributor websites for live inventory and exact pricing.
What is the lead time for PIC32MX440F256HT-80V/PT orders?
As of 2026-10-03, the PIC32MX440F256HT-80V/PT ships from distributor stock, with DigiKey quoting 'ships today' for in-stock units. Mouser and LCSC also hold inventory for immediate dispatch. For volume production quantities, lead time can extend to 6-12 weeks when ordering factory-direct through Microchip, depending on backlog and package availability.
What is the difference between PIC32MX440F256HT-80V/PT and PIC32MX440F256HT-80I/PT?
The PIC32MX440F256HT-80V/PT is the -40C to +105C industrial-Plus grade ('V' suffix), while the PIC32MX440F256HT-80I/PT is the -40C to +85C industrial grade ('I' suffix). Both share identical 80 MHz CPU clock, 256 KB Flash, 32 KB RAM, and 64-TQFP package. According to Microchip datasheet DS61143H, all other electrical parameters are equivalent within their respective temperature windows.
PIC32MX440F256HT-80V/PT vs PIC32MX340F256H-80V/PT - which is better for USB designs?
The PIC32MX440F256HT-80V/PT is the better choice for USB designs because the PIC32MX4XX family specifically adds integrated USB-OTG with on-chip transceiver, while the PIC32MX340 series lacks the USB module. Both share 256 KB Flash, 32 KB RAM, and 64-TQFP package option, making the PIC32MX440 a drop-in upgrade for USB-required applications per Microchip datasheet DS61143H.
When should I choose PIC32MX440F256HT-80V/PT over PIC32MX450F256H?
Choose the PIC32MX440F256HT-80V/PT when you need 80 MHz operation and USB-OTG; choose the PIC32MX450F256H when you need higher 120 MHz clock speed for compute-intensive applications. Both share 256 KB Flash and 64-TQFP package. The PIC32MX440 also supports industrial temperature grades (-40C to +105C), making it more suitable for harsh environments.
What is the best drop-in replacement for PIC32MX440F256HT-80V/PT?
The best drop-in replacements are same-family Microchip PIC32MX parts in 64-TQFP package, including PIC32MX440F256H-80V/PT (operating temperature grade V), PIC32MX440F256HT-80V/MR (64-QFN package variant), and PIC32MX440F256HT-80I/PT (industrial grade). Per Microchip datasheet DS61143H, all share identical peripheral set, memory map, and pinout, enabling direct PCB replacement without firmware changes.
Can PIC32MX440F256HT-80I/PT replace PIC32MX440F256HT-80V/PT directly?
Yes, the PIC32MX440F256HT-80I/PT is a drop-in replacement in 64-TQFP package with identical memory, peripheral set, and pinout. The only specification difference is operating temperature range: -40C to +85C ('I') vs -40C to +105C ('V'). For applications that never exceed 85C, the 'I' variant offers a lower-cost alternative per Microchip datasheet DS61143H.
Where can I download the PIC32MX440F256HT-80V/PT datasheet PDF?
The PIC32MX440F256HT-80V/PT datasheet (DS61143H, document number 61143H) is freely downloadable from Microchip's website at ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/61143H.pdf. The PDF covers the entire PIC32MX3XX/4XX family with full pin descriptions, peripheral specifications, and package drawings. Distributors such as DigiKey also host datasheet links on their product detail pages.
Where can I find the PIC32MX440F256HT-80V/PT pinout diagram?
The PIC32MX440F256HT-80V/PT pinout diagram is located in section 2.0 of the PIC32MX3XX/4XX Family Data Sheet (DS61143H). The 64-pin TQFP pinout is shown in package drawing C04-3008C. For visual reference, the XAIPART product page also renders the 64-TQFP pinout diagram mapped to functional pin groups (VDD, VSS, USB, ADC, I/O, etc.) using the standard TQFP numbering convention.
Is PIC32MX440F256HT-80V/PT suitable for industrial motor control designs?
Yes, the PIC32MX440F256HT-80V/PT is suitable for low-to-mid complexity motor control designs thanks to its 5 timers, 2 PWM-capable outputs, 10-bit ADC with 1 Msps, and 80 MHz MIPS32 M4K CPU. The integrated USB-OTG enables direct USB debugging or wireless control module interface. Per Microchip datasheet DS61143H, the -40C to +105C industrial-Plus grade is qualified for harsh industrial environments.
What are the key specifications of PIC32MX440F256HT-80V/PT that engineers should know?
Key specifications of the PIC32MX440F256HT-80V/PT include: 80 MHz MIPS32 M4K core (1.56 DMIPS/MHz), 256 KB Flash, 32 KB SRAM, 2.3V to 3.6V operating voltage, full-speed USB 2.0 OTG with on-chip transceiver, 10-bit ADC with 16 channels at 1 Msps, 2 UART/SPI/I2C, 16-bit PMP, 5 timers, 64-pin TQFP package, and -40C to +105C industrial-Plus temperature range. According to Microchip datasheet DS61143H, peripherals operate at peripheral bus clock divided by programmable divider.

엔지니어링 참조 데이터: PIC32MX440F256HT-80V/PT — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the PIC32MX440F256HT-80V/PT when you need a 32-bit MCU with integrated USB-OTG, 256 KB Flash, 32 KB SRAM, and 16-bit PMP for compact USB peripherals, industrial control nodes, or low-end HMI designs in a hand-rework-friendly 64-TQFP package. The -40C to +105C industrial-Plus temperature grade suits factory-floor, outdoor, and harsh-environment deployments. If you do not need USB-OTG or PMP, the PIC32MX340F256H-80V/PT offers lower cost with identical memory. If you need 120 MHz operation for compute-intensive DSP, the PIC32MX450F256H-80V/PT is a direct upgrade. For lower temperature environments (-40C to +85C), the PIC32MX440F256HT-80I/PT provides the same feature set at lower cost. All listed alternatives share the 64-TQFP package footprint, enabling PCB layout reuse across the PIC32MX4XX family.

대체품과의 비교

파라미터 이 제품 PIC32MX440F256H-80V/PT PIC32MX440F256HT-80I/PT PIC32MX440F256HT-80V/MR PIC32MX450F256H-80V/PT
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 64-TQFP (10x10 mm) 64-TQFP (10x10 mm) - same 64-TQFP (10x10 mm) - same 64-QFN (8x8 mm) 64-TQFP (10x10 mm) - same
Maximum CPU Clock 80 MHz 80 MHz 80 MHz 80 MHz 80 MHz
Flash Memory 256 KB 256 KB 256 KB 256 KB 256 KB
SRAM 32 KB 32 KB 32 KB 32 KB 32 KB
USB Module USB 2.0 FS OTG with on-chip transceiver USB 2.0 FS OTG with on-chip transceiver USB 2.0 FS OTG with on-chip transceiver USB 2.0 FS OTG with on-chip transceiver USB 2.0 FS OTG with on-chip transceiver
Operating Temperature -40C to +105C (V grade) -40C to +105C (V grade) -40C to +85C (I grade) -40C to +105C (V grade) -40C to +105C (V grade)
ADC 10-bit, 16-channel, 1 Msps 10-bit, 16-channel, 1 Msps 10-bit, 16-channel, 1 Msps 10-bit, 16-channel, 1 Msps 10-bit, 16-channel, 1 Msps
Parallel Master Port (PMP) Yes (16-bit) Yes (16-bit) Yes (16-bit) Yes (16-bit) Yes (16-bit)

주요 차별점

  • Integrated USB-OTG with on-chip transceiver eliminates external PHY (vs PIC32MX340F256H-80V/PT)
  • Industrial-Plus -40C to +105C temperature grade for harsh environments (vs PIC32MX440F256HT-80I/PT)
  • Higher-density PIC32MX4XX family with USB and PMP (vs PIC32MX320F128L-80V/PT)
  • 64-TQFP package with full peripheral access for hand-rework-friendly designs (vs PIC32MX440F256HT-80V/MR)

설계 노트

The PIC32MX440F256HT-80V/PT operates from 2.3V to 3.6V on VDD pins, with dedicated VDDCORE pins for the internal regulator that supply the CPU core. Place a 10 uF bulk capacitor and 0.1 uF decoupling capacitors adjacent to each VDD/VSS pair, particularly near the high-current USB pins. Estimated: peak current consumption at 80 MHz with USB active is approximately 60-80 mA, requiring attention to PCB power-trace widths.

Reserve 4 KB of Flash for Microchip's bootloader library when designing firmware-upgradeable products. Configure the JTAG/TRACE pins (PGECx/PGEDx) correctly during PCB layout to avoid debugger lock-out. The 16-bit PMP requires careful PCB routing to maintain signal integrity for external LCD interfaces; keep traces under 50 mm and isolate from noisy switching nodes. Note: PIC32MX440F256HT-80V/PT differs from -80I/PT only in temperature grade; choose the correct suffix for your operating environment.

Route the USB D+/D- traces as a 90-ohm differential pair with no stubs or test points, matching the on-chip transceiver requirements per Microchip datasheet DS61143H. Keep the 12 MHz primary oscillator traces short and surround them with a ground guard ring. Place the analog AVSS/AVDD pair with its own ferrite bead to isolate ADC reference noise from digital switching. The 64-TQFP package has multiple VDD/VSS pairs; ensure each pair has its own decoupling capacitor as close to the pin as physically possible.

At 80 MHz operation with USB active and moderate GPIO toggling, the device dissipates approximately 250-400 mW. The 64-TQFP package has a thermal resistance of approximately 35-40 C/W theta_JA, allowing operation up to 105C junction without a heatsink. Estimated: at 25C ambient, junction temperature rises approximately 10-15C above ambient at full operation. For sealed enclosures, validate thermal performance with a thermocouple on the package top during worst-case duty cycle.

규정 준수 정보

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

RoHS compliant per Microchip product page. Not AEC-Q100 qualified (industrial-Plus grade is for industrial, not automotive). Halogen-free status not specified in available data.

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

관련 검색

PIC32MX440F256HT-80V/PT PIC32MX440F256HT-80V/PT datasheet Microchip PIC32MX440 USB microcontroller PIC32MX 80MHz 256KB Flash MCU 64-TQFP PIC32 microcontroller USB-OTG PIC32MX USB peripheral design PIC32MX440 vs PIC32MX340 PIC32MX440 drop-in replacement PIC32MX440F256HT-80V/PT buy price what is the flash memory of PIC32MX440F256HT-80V/PT PIC32MX440F256HT-80V/PT pinout 64-TQFP PIC32MX industrial Plus grade microcontroller

관련 부품 & 용어

Microchip Technology PIC32MX440F256HT-80V/PT PIC32MX440 PIC32MX450 PIC32MX340 PIC32MX MIPS32 M4K USB-OTG Full-Speed USB 2.0 TQFP-64 TQFP Flash memory SRAM MIPS M4K Parallel Master Port PMP 10-bit ADC RoHS IEC 60730 industrial-Plus grade HMI PLC POS terminal CIP
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