PIC32MX440F128L-80I/BG - 80MHz 32-bit MCU 128KB Flash USB-OTG | Microchip
料号： PIC32MX440F128L-80I/BG ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.2 | $8.20 |
| 10 | $7.45 | $74.50 |
| 100 | $6.62 | $662.00 |
| 500 | $5.95 | $2,975.00 |
| 1,000 | $5.3 | $5,300.00 |
PIC32MX440F128L-80I/BG 概述
A microcontroller (MCU) is a single-chip computer containing a CPU core, volatile and non-volatile memory, and programmable peripherals. PIC32MX devices specifically use the MIPS32 M4K core, a true 32-bit RISC architecture with hardware multiply/divide and a 5-stage pipeline. Within the broader taxonomy, the PIC32MX family is a 32-bit MCU -> MIPS architecture -> RISC microcontroller -> embedded processor -> semiconductor. The "MX" series is the general-purpose and USB-capable branch, sitting below the "MZ" series that adds higher clock speeds and enhanced peripherals.
Key features include 128 KB of Flash program memory (128K x 8), 32 KB of SRAM, and an integrated USB-OTG full-speed controller. The device offers 10-bit ADC, comparators, I2C, SPI, UART, and PMP peripherals, with DMA support for offloading CPU data movement. Industrial temperature range (-40C to +85C) is indicated by the "I" suffix, and the "80" denotes the 80 MHz maximum operating frequency.
Typical applications include USB peripherals (HID, CDC, mass storage), industrial control panels, embedded data acquisition with USB logging, and low-cost graphical user interfaces driven by an external PMP-connected display. The combination of USB-OTG and a 32-bit core makes the part well-suited to designs that previously required an external USB controller plus 16-bit MCU.
When designing with the TFBGA-121 package, pay attention to PCB layout: route the inner balls out through vias in a dog-bone or via-in-pad pattern, and follow Microchip's recommended decoupling scheme of 0.1 uF + bulk caps per VDD/VUSB rail. Programming is performed via ICSP (PGECx/PGEDx pins) or JTAG.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes that go beyond the manufacturer datasheet, helping engineers select a pin-compatible variant for the PIC32MX440F128L-80I/BG.
直接替换替代料： PIC32MX440F128L-80I/BG ——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： PIC32MX440F128L-80I/BG （相同外形与封装尺寸） ——差异在于 ADC, Package, Operating Temperature, Operating Voltage, Program Memory (Flash).
快速对比工具——选择替代料号进行并排对比：
PIC32MX440F128LT-80I/BG
✅ 直接替换✓ 有现货
$4.78 / 个
查看数据手册 →PIC32MX460F256L-80I/BG
✅ 直接替换✓ 有现货
$5.55 / 个
查看数据手册 →PIC32MX340F128L-80I/BG
✅ 直接替换✓ 有现货
$5.48 / 个
查看数据手册 →PIC32MX360F512L-80V/BG
✅ 直接替换✓ 有现货
$6.65 / 个
查看数据手册 →PIC32MX360F256L-80I/BG
✅ 直接替换✓ 有现货
$7.58 / 个
查看数据手册 →PIC32MX440F128L-80I/BG 最大额定值与电气特性
| Core Architecture | MIPS32 M4K |
| Core Bit Width | 32-bit |
| Maximum CPU Frequency | 80 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (SRAM) | 32 KB |
| USB Controller | USB 2.0 Full-Speed OTG |
| ADC | 10-bit |
| 电源电压 | 2.5 V / 3.3 V |
| 工作温度范围 | -40C to +85C (Industrial, "I") |
| 封装 | 121-pin TFBGA (10x10 mm) |
| 安装类型 | Surface Mount |
| 引脚数量 | 121 |
| DMA Channels | Yes |
| ICSP / Debug | PGECx / PGEDx |
| RoHS 状态 | Compliant |
PIC32MX440F128L-80I/BG 121-pin tfbga (10x10 mm) 引脚配置指南
PIC32MX440F128L-80I/BG（121-pin tfbga (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： PIC32MX440F128L-80I/BG.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PIC32MX440F128L-80I/BG 适用于 6 应用s: USB Full-Speed Peripherals (HID, CDC, Mass Storage), Industrial Control Panels with USB Diagnostics, Embedded Data Acquisition with USB Logging, Low-Cost Graphical User Interfaces with PMP, USB-OTG Dual-Role Device Chargers, Educational and Development Boards.
USB Full-Speed Peripherals (HID, CDC, Mass Storage)
The PIC32MX440F128L-80I/BG's integrated USB 2.0 full-speed OTG controller is the primary reason engineers select this MCU for USB peripheral applications. With 80 MHz of CPU headroom, the device can drive USB HID stacks, CDC virtual COM ports, or USB mass storage device mode at USB full speed (12 Mbps) without external PHY. The 32 KB SRAM is large enough to buffer USB descriptor tables and packet payloads alongside user application state, while the 128 KB Flash accommodates full USB stacks (e.g., Microchip's MLA USB framework). Place the device on a board with a 48 MHz crystal and the VUSB rail filter caps; verify differential pair impedance (90 ohm) on the D+/D- lines.
推荐
Industrial Control Panels with USB Diagnostics
The PIC32MX440F128L-80I/BG's industrial -40C to +85C temperature range and USB-OTG controller make it well-suited to factory-floor panels that expose configuration ports over CDC. The 80 MHz MIPS M4K core can scan 10-bit ADC inputs for sensor telemetry while servicing USB transfers, and the 32 KB SRAM buffers diagnostics logs. Use the device's DMA controller to offload ADC-to-memory transfers from the CPU so USB enumeration latency stays low. Compared to a discrete 16-bit MCU plus external USB controller, the integrated approach reduces PCB area by roughly 40% and BOM count by 6-8 components.
推荐
Embedded Data Acquisition with USB Logging
For portable data loggers, the PIC32MX440F128L-80I/BG combines a 10-bit ADC at up to 1 Msps with USB-OTG for direct PC connectivity. The 128 KB Flash stores the acquisition firmware and a small file system, while 32 KB SRAM holds ring-buffer samples between USB transfers. In a typical 8-channel 1 kHz logger design, the CPU overhead is below 20% at 80 MHz, leaving headroom for averaging, filtering, and USB bulk transfers. Use the device's DMA controller to stream ADC results to RAM without CPU intervention during high-rate bursts.
推荐
Low-Cost Graphical User Interfaces with PMP
The PIC32MX440F128L-80I/BG's parallel master port (PMP) can drive small graphical LCDs at up to 16-bit parallel width, enabling cost-sensitive graphical user interfaces. At 80 MHz, the device can refresh QVGA (320x240) displays at 30+ FPS using the PMP's dedicated DMA-style bursting. Combine with a small resistive touch controller over SPI for input. The 121-TFBGA package exposes the full PMP pin count, while smaller 64-pin PIC32MX parts have a reduced PMP width. Pair with an external 8 MB SPI flash for bitmap asset storage.
推荐
USB-OTG Dual-Role Device Chargers
The PIC32MX440F128L-80I/BG's full-speed OTG support allows battery-operated devices to act as either USB device or USB host, enabling chargers that pull power from upstream or deliver power to downstream accessories. The MCU's 32 KB SRAM accommodates OTG host stacks for negotiating role swap, while the 80 MHz core handles BC1.2 detection algorithms. Industrial temperature grade permits use in outdoor or in-vehicle chargers. Use the MCP2200 or an external boost converter for VBUS switching; the PIC32 controls the role via the USB_VBUS_SENSE and USB_ID pins per Microchip reference designs.
推荐
Educational and Development Boards
The PIC32MX440F128L-80I/BG is commonly deployed in university curricula and hobbyist development boards thanks to its combination of USB-OTG, 128 KB Flash, and Microchip's free MPLAB X toolchain. Students gain exposure to MIPS assembly, real-time interrupts, USB stack implementation, and PMP-driven displays using the same MCU found in production designs, easing the transition from learning to deployment. The PICkit 5 in-circuit debugger connects via ICSP (PGECx/PGEDx) pins and supports breakpoints and trace, plus Microchip's MPLAB Harmony framework accelerates graphics and USB stack development. Industrial temperature rating also supports classroom lab environments.
推荐
推荐产品汇总
工程参考数据： PIC32MX440F128L-80I/BG ——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 | PIC32MX440F128LT-80I/BG | PIC32MX460F256L-80I/BG | PIC32MX340F128L-80I/BG | PIC32MX360F512L-80V/BG | PIC32MX360F256L-80I/BG |
|---|---|---|---|---|---|---|
| Package | 121-TFBGA (10x10 mm) | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB | 256 KB | 128 KB | 512 KB | 256 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| Maximum CPU Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| USB Controller | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial, "V" suffix) | -40C to +85C (Industrial) |
| Core | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K |
关键差异点
- Identical die available in tape-and-reel packaging （对比 PIC32MX440F128LT-80I/BG)
- Same package with double the Flash for richer USB stacks （对比 PIC32MX460F256L-80I/BG)
- Identical Flash/SRAM/USB at lower cost when USB-OTG is not required （对比 PIC32MX340F128L-80I/BG)
设计说明
The 121-TFBGA package uses 0.5 mm or 0.8 mm pitch balls and requires dog-bone or via-in-pad PCB layout to route inner balls out. Use a 4-layer stack-up with the inner plane at least 0.5 mm below the BGA pads to minimize via stubs. Add 0.1 uF + 1 uF + 10 uF decoupling caps per VDD/VUSB rail within 5 mm of the package perimeter per the PIC32MX3XX/4XX family reference schematic.
USB-OTG operation requires a precise 48 MHz clock source for full-speed USB. If using the internal 8 MHz PLL with USB fraction, ensure the configured PLL produces a 48 MHz output with the required USB clock accuracy (within 0.25% per the USB specification). Incorrect USB clock settings cause enumeration failures or unstable device connections. Verify VUSB rail voltage (3.3 V) before attempting USB enumeration.
Keep the USB D+ and D- traces as a 90-ohm differential pair with no stubs. Match trace length to within 150 mils of each other. Route D+/D- away from switching signals like PWM or SPI clocks. Place the VBUS sense and USB_ID pins with clean traces back to the corresponding connector pins. Per Microchip's PIC32 USB design checklist, an ESD protection array (such as the USBLC6-2SC6) on D+/D- is required for production designs.
The PIC32MX440F128L-80I/BG requires a 2.5 V or 3.3 V supply on VDD; the core runs from an internal 1.8 V regulator powered by VDD. Total supply current at 80 MHz is approximately 65-75 mA active with USB, so a 100 mA LDO is adequate for most designs. For low-power designs, the device supports Sleep and Idle modes with peripheral clocks gated; reference section 32 of the family datasheet for DC electrical specifications and power-down current values.
合规信息
RoHS compliant per Microchip ordering information. Lead-free TFBGA package. Industrial -40C to +85C temperature grade. Not AEC-Q100 qualified; this is a general-purpose MCU. Conflict minerals compliance available via Microchip corporate sustainability statements.
