PIC32MX440F512HT-80I/MR - 80MHz 32-bit MCU 512KB Flash | Microchip
料号： PIC32MX440F512HT-80I/MR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 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 |
PIC32MX440F512HT-80I/MR 概述
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.
直接替换替代料： PIC32MX440F512HT-80I/MR ——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-80I/MR （相同外形与封装尺寸） ——差异在于 ADC, Package, Operating Temperature, DMA Channels, Program Memory (Flash).
快速对比工具——选择替代料号进行并排对比：
PIC32MX440F512H-80I/MR
✅ 直接替换✓ 有现货
$5.45 / 个
查看数据手册 →PIC32MX440F512HT-80I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX440F256HT-80I/MR
✅ 直接替换✓ 有现货
$4.61 / 个
查看数据手册 →PIC32MX340F512HT-80I/MR
✅ 直接替换✓ 有现货
$4.36 / 个
查看数据手册 →PIC32MX460F512LT-80I/MR
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX440F512HT-80I/MR 最大额定值与电气特性
| 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 |
| 封装 | 64-VQFN (9x9 mm), tape and reel |
| 工作温度 | -40C to +85C (industrial) |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 (168 hours) |
| RoHS 状态 | Compliant |
PIC32MX440F512HT-80I/MR 引脚配置
| 引脚 1 | RG15 — General purpose I/O |
| 引脚 2 | VDD — Positive supply voltage |
| 引脚 3 | RP12/RD12 — General purpose I/O / remappable peripheral |
| 引脚 4 | RA4 — General purpose I/O |
| 引脚 5 | RA5 — General purpose I/O |
| 引脚 6 | VSS — Ground reference |
| 引脚 7 | OSC2/CLKO/RC15 — Oscillator output / general purpose I/O |
| 引脚 8 | OSC1/CLKI/RC12 — Oscillator input / general purpose I/O |
| 引脚 9 | PGED1/RB6 — ICSP data / general purpose I/O |
| 引脚 10 | PGEC1/RB7 — ICSP clock / general purpose I/O |
| 引脚 11 | AVDD — Analog positive supply |
| 引脚 12 | AVSS — Analog ground |
| 引脚 13 | VBUS — USB VBUS detect |
| 引脚 14 | D- — USB data minus |
| 引脚 15 | D+ — USB data plus |
| 引脚 16 | RB0 — General purpose I/O / programming |
| 引脚 17 | RB1 — General purpose I/O / programming |
| 引脚 18 | RB2 — General purpose I/O |
| 引脚 19 | RB3 — General purpose I/O |
| 引脚 20 | RB4 — General purpose I/O |
| 引脚 21 | RB5 — General purpose I/O |
| 引脚 22 | VSS — Ground reference |
| 引脚 23 | VDD — Positive supply voltage |
| 引脚 24 | RB8 — General purpose I/O |
| 引脚 25 | RB9 — General purpose I/O |
| 引脚 26 | RB10 — General purpose I/O |
| 引脚 27 | RB11 — General purpose I/O |
| 引脚 28 | RB12 — General purpose I/O |
| 引脚 29 | RB13 — General purpose I/O |
| 引脚 30 | RB14 — General purpose I/O |
| 引脚 31 | RB15 — General purpose I/O |
| 引脚 32 | VSS — Ground reference |
| 引脚 33 | VDD — Positive supply voltage |
| 引脚 34 | RD0 — General purpose I/O |
| 引脚 35 | RD1 — General purpose I/O |
| 引脚 36 | RD2 — General purpose I/O |
| 引脚 37 | RD3 — General purpose I/O |
| 引脚 38 | RD4 — General purpose I/O |
| 引脚 39 | RD5 — General purpose I/O |
| 引脚 40 | RD6 — General purpose I/O |
| 引脚 41 | RD7 — General purpose I/O |
| 引脚 42 | VSS — Ground reference |
| 引脚 43 | VDD — Positive supply voltage |
| 引脚 44 | RC1 — General purpose I/O |
| 引脚 45 | RC2 — General purpose I/O |
| 引脚 46 | RC3 — General purpose I/O |
| 引脚 47 | RC4 — General purpose I/O |
| 引脚 48 | TDI/RG13 — JTAG data in / general purpose I/O |
| 引脚 49 | TCK/RC14 — JTAG clock / general purpose I/O |
| 引脚 50 | TDO/RG12 — JTAG data out / general purpose I/O |
| 引脚 51 | TMS/RG14 — JTAG mode select / general purpose I/O |
| 引脚 52 | TRST/RG0 — JTAG reset / general purpose I/O |
| 引脚 53 | VSS — Ground reference |
| 引脚 54 | VDD — Positive supply voltage |
| 引脚 55 | RG1 — General purpose I/O |
| 引脚 56 | RG2 — General purpose I/O |
| 引脚 57 | RG3 — General purpose I/O |
| 引脚 58 | RC13 — General purpose I/O |
| 引脚 59 | RF0 — General purpose I/O |
| 引脚 60 | RF1 — General purpose I/O |
| 引脚 61 | RF2 — General purpose I/O |
| 引脚 62 | RF3 — General purpose I/O |
| 引脚 63 | RF4 — General purpose I/O |
| 引脚 64 | RF5 — General purpose I/O |
典型应用
PIC32MX440F512HT-80I/MR 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： PIC32MX440F512HT-80I/MR ——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 | 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) |
关键差异点
- Integrated USB-OTG with on-chip transceiver （对比 PIC32MX340F512HT-80I/MR)
- Higher Flash density for complex USB stacks （对比 PIC32MX440F256HT-80I/MR)
- Easier hand-soldering alternative available （对比 PIC32MX440F512HT-80I/PT)
设计说明
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.
合规信息
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).
