PIC32MX440F512HT-80V/PT - 512KB Flash 80MHz MCU | Microchip
料号： PIC32MX440F512HT-80V/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.2 | $9.20 |
| 10 | $8.41 | $84.10 |
| 100 | $7.52 | $752.00 |
| 500 | $6.78 | $3,390.00 |
| 1,000 | $6.05 | $6,050.00 |
PIC32MX440F512HT-80V/PT 概述
A 32-bit microcontroller (MCU) is an embedded processor that integrates CPU core, memory (Flash + SRAM), and peripherals on a single die. PIC32MX parts use the MIPS32 M4K core, which executes the MIPS instruction set at up to 80MHz with 5-stage pipeline and hardware multiply/divide. Within Microchip's taxonomy, PIC32MX sits above PIC24 (16-bit) and below the PIC32MZ/MK families, and is widely deployed in industrial, consumer, and USB-connected embedded systems.
Key features of this part include USB-OTG (Full-Speed, with internal transceiver), 16-channel 10-bit ADC (1 MSPS), up to 5 UART/SPI/I2C peripherals, parallel master port (PMP) for graphics/parallel memories, and CTMU for capacitive touch. The 512KB Flash supports self-programmability for bootloader and field updates, and 32KB SRAM is enough for typical TCP/IP stacks or graphics frame buffers in mid-range designs.
The PIC32MX4xx family uses a Harvard architecture with separate 32-bit instruction and 32-bit data paths, and integrates a prefetch cache to mask Flash wait-states. An integrated 8MHz internal RC oscillator with PLL provides flexible clocking. The 64-TQFP package exposes nearly all I/O (53 I/O pins) plus USB D+/D-, making it ideal for medium-pin-count USB-connected designs.
Typical applications include industrial USB peripherals, point-of-sale (POS) terminals, embedded web/HMI servers using TCP/IP stacks, USB OTG device/host bridges, and human-machine interface (HMI) panels. Its combination of USB-OTG, large Flash, and 10-bit ADC makes it a workhorse for cost-sensitive industrial connectivity.
When designing with this device, allocate at least 4.0Vcc capacitance (10uF + 0.1uF + 0.01uF) close to VDD/VSS pairs, and use the on-chip LDO (ENVREG pin tied high) to generate the internal 1.8V core rail from a single 3.3V supply. Programming/debugging uses 2-wire ICSP (PGECx/PGEDx); keep these traces short to avoid noise coupling.
This page consolidates distributor pricing, verified drop-in alternatives from the same PIC32MX4xx family, and practical design notes not found on a single source page, helping engineers evaluate sourcing options quickly.
直接替换替代料： PIC32MX440F512HT-80V/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC32MX440F512HT-80V/PT （相同外形与封装尺寸） ——差异在于 Core Architecture, Package, ADC, RoHS Status, DMA Channels.
快速对比工具——选择替代料号进行并排对比：
该产品暂无直接替换替代料。
请求替代料PIC32MX440F512HT-80V/PT 最大额定值与电气特性
| Core Architecture | MIPS32 M4K (32-bit RISC) |
| Core Frequency | 80 MHz |
| Program Flash | 512 KB (512K x 8) |
| SRAM | 32 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| 封装 | 64-pin TQFP (PT) 10x10 mm |
| I/O Pins | 53 |
| ADC | 10-bit, 16-channel, 1 MSPS |
| USB | USB-OTG (Full-Speed), integrated transceiver |
| DMA Channels | 8 channels |
| UART / SPI / I2C | Up to 5 each |
| Parallel Master Port (PMP) | Yes |
| 工作温度 | -40C to +105C (V grade) |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 (168 hours) |
| RoHS 状态 | Compliant |
PIC32MX440F512HT-80V/PT 64-pin tqfp (pt) 10x10 mm 引脚配置指南
PIC32MX440F512HT-80V/PT（64-pin tqfp (pt) 10x10 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： PIC32MX440F512HT-80V/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PIC32MX440F512HT-80V/PT 适用于 6 应用s: Industrial USB Peripherals, POS Terminals and Payment Devices, Embedded Web Servers / HMI Panels, USB-OTG Device/Host Bridges, Human-Machine Interface (HMI) Panels, Industrial Sensor Data Acquisition.
Industrial USB Peripherals
The PIC32MX440F512HT-80V/PT is well suited to industrial USB peripherals because it integrates a Full-Speed USB-OTG controller with on-chip transceiver, eliminating the need for an external PHY. The 512KB Flash accommodates USB device stacks plus application code, while the 80MHz MIPS32 M4K core handles HID, CDC, or vendor-class protocols with low latency. The -40C to +105C temperature grade supports factory-floor deployment. Typical deployment: barcode scanners, USB-to-UART bridges, and isolated USB data acquisition modules connected to industrial PCs or PLCs.
推荐
POS Terminals and Payment Devices
POS terminals need a mix of USB (for peripherals like barcode readers and printers), display driving via PMP, and reliable Flash-based firmware storage. The PIC32MX440F512HT-80V/PT delivers USB-OTG, a parallel master port for character displays or small TFTs, and 512KB Flash for transaction-handling firmware. At 80MHz, the MIPS32 M4K core processes encrypted card data and TCP/IP networking within tight latency budgets. The 32KB SRAM is sufficient for buffer pools used in serial protocols. Engineers value this part because it consolidates USB, display, and general I/O without requiring a second MCU.
推荐
Embedded Web Servers / HMI Panels
Embedded web servers and HMI panels demand TCP/IP stack support, enough Flash for HTTP/MQTT libraries, and a parallel interface to character LCDs or small TFTs. The PIC32MX440F512HT-80V/PT fits this niche with 512KB Flash (enough for a Microchip Harmony TCP/IP stack plus HTML assets), 32KB RAM for socket buffers, a parallel master port (PMP) for direct LCD drive, and USB-OTG for diagnostic/upgrade. The 80MHz MIPS32 M4K core sustains typical HTTP request throughput without dedicated crypto acceleration; secure variants like the PIC32MX5xx/6xx/7xx families add hardware crypto. The result is a low-cost platform for industrial HMI and remote-monitoring nodes.
推荐
USB-OTG Device/Host Bridges
USB-OTG bridges between USB mass storage, keyboards, or HID devices and embedded hosts require a controller that can act as either host or device. The PIC32MX440F512HT-80V/PT implements the OTG state machine in firmware, supported by the integrated FS USB transceiver and 53 GPIO pins for status LEDs and user buttons. With 80MHz MIPS32 M4K performance, the MCU sustains USB Full-Speed (12 Mbps) throughput while servicing the application layer. Typical use cases include USB stick bootloaders for field upgrades, USB keyboard emulation for industrial tablets, and OTG-to-UART debug bridges.
推荐
Human-Machine Interface (HMI) Panels
Compact HMI panels combine a microcontroller, a graphic or character display, and input keys or a touch sensor. The PIC32MX440F512HT-80V/PT supports this with PMP for direct drive of character LCDs or small QVGA TFTs, the CTMU peripheral for capacitive touch buttons, and enough Flash (512KB) for graphics assets and UI code. The 10-bit ADC reads analog inputs like temperature or potentiometers, while 32KB SRAM stores partial frame buffers. At 80MHz, it can refresh a small display while still servicing USB updates. The TQFP-64 footprint is hand-solder friendly, useful for prototype panels.
推荐
Industrial Sensor Data Acquisition
Industrial data acquisition modules interface analog sensors, digitize via ADC, log to Flash, and forward over USB or UART. The PIC32MX440F512HT-80V/PT brings a 10-bit 1 MSPS ADC with 16 channels, DMA for efficient sample streaming, and 512KB Flash for on-board logging buffers. USB-OTG provides high-speed upload to a host PC, while UART/SPI/I2C connect to upstream PLCs. The -40C to +105C temperature grade supports outdoor or factory-floor environments. Engineers use this part to consolidate analog front-end, processing, and USB connectivity in a single 64-TQFP device.
推荐
推荐产品汇总
工程参考数据： PIC32MX440F512HT-80V/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC32MX440F512HT-80V/MR | PIC32MX340F512HT-80V/PT | PIC32MX440F512HT-80I/PT |
|---|---|---|---|---|
| Package | 64-TQFP (PT) 10x10 mm | 64-QFN (MR) - different footprint | 64-TQFP (PT) - same | 64-TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB |
| USB | USB-OTG FS | USB-OTG FS | USB-OTG FS | USB-OTG FS |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +85C |
| Operating Voltage | 2.3V to 3.6V | 2.3V to 3.6V | 2.3V to 3.6V | 2.3V to 3.6V |
| Approx. Unit Price (qty 1) | 9.20 USD | 9.20 USD (estimated) | 8.80 USD (estimated) | 9.05 USD (estimated) |
关键差异点
- Highest memory density in PIC32MX4xx USB-OTG family in TQFP-64 （对比 PIC32MX340F512HT-80V/PT)
- Higher temperature grade than -I variant （对比 PIC32MX440F512HT-80I/PT)
- TQFP-64 footprint with hand-solder accessibility （对比 PIC32MX440F512HT-80V/MR)
设计说明
Decouple each VDD/VSS pair with a 10uF tantalum + 0.1uF ceramic + 0.01uF ceramic combination, placed within 3mm of the pins per the PIC32MX3XX/4XX datasheet (61143H). For a 64-TQFP part, this typically means 4-6 capacitor banks around the package perimeter. Tie the ENVREG pin high (to VDD) to enable the internal 1.8V core LDO from a single 3.3V rail; tie ENVREG low if an external 1.8V supply is provided. Power-on reset delay of ~70ms is built in.
Keep ICSP traces (PGECx/PGEDx) shorter than 50mm and route them on an inner layer or shielded by ground on both sides. The Microchip PIC32MX3XX/4XX family datasheet recommends short ICSP trace length to avoid programming/debug coupling. For USB designs, route D+/D- as a 90-ohm differential pair with matched length within 150 mil. Place a 15k pull-down on D- and a 1.5k software-controlled pull-up on D+ for Full-Speed device enumeration.
Do not exceed 3.6V on any I/O pin or VDD; the part is NOT 5V tolerant on digital inputs. The USB D+/D- pins are tolerant only to 3.6V. Programming is impossible below 3.0V per the family datasheet - ensure supply is stable above 3.0V before ICSP begins. All VSS and VDD pins must be connected even if some appear unused; floating supply pins will cause programming failures or erratic behavior. Make sure TDO pin toggling during programming does not affect your circuit.
Estimated: at 80MHz with all peripherals active, core current is ~50-70mA at 3.3V, giving roughly 165-230mW dissipation. In the 64-TQFP package, theta_JA is approximately 50 C/W on a standard 4-layer PCB, leading to a junction rise of ~10C above ambient at full load. Industrial -40C to +105C operation is well within the 125C junction limit. No external heatsink is required for typical USB-OTG use cases.
合规信息
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this is an industrial-grade part, not automotive-grade. For automotive designs consider PIC32MX variants with AEC-Q100 qualification. Lead-free / halogen-free per Microchip environmental compliance documentation.
