MSP432E401Y - 120MHz Cortex-M4F Ethernet MCU, 1MB Flash | TI
料号： MSP432E401Y ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.86 | $6.86 |
| 10 | $6.17 | $61.70 |
| 100 | $5.49 | $549.00 |
| 500 | $4.94 | $2,470.00 |
| 1,000 | $4.4 | $4,400.00 |
MSP432E401Y 概述
A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals into one package. It sits at the heart of the embedded hierarchy: microcontroller unit -> embedded processor -> semiconductor device. The MSP432E401Y belongs to the SimpleLink MCU platform, which spans Wi-Fi, Bluetooth low energy, Sub-1 GHz, Ethernet, Zigbee, Thread, and host MCUs - all sharing a common, easy-to-use development environment with a single core software development kit (SDK) and rich tool set.
Key features include the 120 MHz Cortex-M4F core with a hardware floating point unit (FPU) and DSP instructions, 1 MB flash for code storage, 256 kB SRAM for buffers and stacks, and an integrated 10/100 Ethernet MAC and PHY that enables a single-chip networked node without an external PHY. CAN 2.0 support addresses industrial fieldbus requirements.
Technically, the MSP432E401Y uses the Arm Cortex-M4F architecture with an advanced interrupt architecture, and its peripheral memory map is shared across the MSP432E4 family as documented in the MSP432E4 Technical Reference Manual (Rev. A). This simplifies software porting between family members and from the legacy TM4C129 series, which is confirmed as pin-to-pin compatible on the TQFP packages per TI E2E forum guidance.
Typical applications include industrial Ethernet gateways and IoT nodes, IEEE 1588 PTP precision timing masters, building automation and remote monitoring nodes, and CAN-based industrial control - anywhere cost-sensitive control processing plus wired connectivity is required. The MSP-EXP432E401Y LaunchPad kit provides a fast evaluation path.
Design consideration: when migrating from TM4C129x devices, the pinout is pin-to-pin compatible, but software must move to the SimpleLink SDK; TM4C129 MCUs are not part of the SimpleLink family and do not offer its connectivity ecosystem.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： MSP432E401Y ——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： MSP432E401Y （相同外形与封装尺寸） ——差异在于 Core Processor, Package.
快速对比工具——选择替代料号进行并排对比：
TM4C129ENCPDT
✅ 直接替换📋 参考替代料（不在目录中）
TM4C1294NCPDTI3
✅ 直接替换✓ 有现货
$9.44 / 个
查看数据手册 →MSP432E401Y 最大额定值与电气特性
| Core Processor | Arm Cortex-M4F (32-bit) |
| Core Clock Frequency | 120 MHz |
| Flash Memory | 1 MB (1M x 8) |
| SRAM | 256 kB |
| Connectivity | Ethernet 10/100 (MAC + PHY), CAN 2.0, USB-OTG, QSPI (QSSI), I2C, SPI, UART |
| 封装 | 128-TQFP (14 x 14 mm) |
| 安装类型 | Surface Mount |
| Platform | SimpleLink MCU platform |
| Floating Point Unit | Yes (hardware FPU) |
| Ordering Part Number (package variant) | MSP432E401YTPDTR |
| Reference Manual | MSP432E4 SimpleLink Microcontrollers Technical Reference Manual Rev. A |
MSP432E401Y msp432e401ytpdtr 引脚配置指南
MSP432E401Y（msp432e401ytpdtr 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： MSP432E401Y.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MSP432E401Y 适用于 6 应用s: Industrial Ethernet Gateways, IEEE 1588 PTP Precision Timing Master, Building Automation and Remote Monitoring, CAN-Based Industrial Control, IoT Wired Nodes and Edge Devices, Test and Measurement Instrumentation.
Industrial Ethernet Gateways
The MSP432E401Y fits industrial Ethernet gateways because its integrated 10/100 Ethernet MAC and PHY deliver a single-chip networked node, eliminating the external PHY and magnetics-side complexity cost of a two-chip solution. With 1 MB flash and 256 kB SRAM, the part has room for TCP/IP stacks, protocol conversion firmware, and packet buffers, while the 120 MHz Cortex-M4F core with hardware FPU handles filtering and forwarding within line-rate budgets. CAN 2.0 on the same die bridges Ethernet field traffic to CAN-based actuators, and QSPI, SPI, UART, and I2C connect local I/O. The trade-off versus a larger MPU gateway is lower throughput, but for cost-effective control-plus-connectivity nodes the integration advantage is decisive.
推荐
IEEE 1588 PTP Precision Timing Master
For IEEE 1588 PTP precision timing, the MSP432E401Y provides the integrated Ethernet MAC with hardware support in the MSP432E4 peripheral set and a 120 MHz Cortex-M4F core fast enough to service Sync, Delay_Req, and Follow_Up messages inside protocol timing windows. The public GPSDO IEEE PTP Master project on Hackaday.io demonstrates exactly this use, pairing the MSP432E401Y with a GPS-disciplined DCXO for software temperature compensation. The 256 kB SRAM holds ring buffers that smooth timestamp jitter, and the 1 MB flash stores compensation tables. Against the TM4C1294NCPDT, the MSP432E401Y offers the same pinout plus SimpleLink SDK software portability, which matters for multi-protocol timing products.
推荐
Building Automation and Remote Monitoring
In building automation and remote monitoring nodes, the MSP432E401Y connects sensors and controllers onto a wired Ethernet backbone without external PHY silicon, and its UART, I2C, and SPI interfaces aggregate meters, HVAC sensors, and access devices. The 120 MHz Cortex-M4F with FPU runs control loops and lightweight web servers simultaneously within the 256 kB SRAM budget, while 1 MB flash leaves room for OTA firmware images and data logging. CAN 2.0 links legacy field devices. Because the part belongs to the SimpleLink platform with a single SDK, adding a wireless SimpleLink companion device later reuses the same development environment, protecting the software investment as building networks evolve toward IP everywhere.
推荐
CAN-Based Industrial Control
The MSP432E401Y addresses CAN-based industrial control by combining a CAN 2.0 controller with the 120 MHz Cortex-M4F core and hardware FPU, enabling deterministic control loops and fieldbus communication on one chip. Its 1 MB flash supports large state machines and diagnostics logging, and 256 kB SRAM buffers CAN traffic bursts. The integrated Ethernet MAC lets the same controller uplink to supervisory SCADA systems, removing a separate gateway chip from the board. Peripherals including SPI, I2C, UART, and QSSI drive drives, encoders, and HMIs. Compared with the TM4C129 pin-compatible parts, the MSP432E401Y adds SimpleLink SDK consistency for teams that also deploy TI wireless nodes elsewhere in the plant.
推荐
IoT Wired Nodes and Edge Devices
As a SimpleLink Ethernet MCU, the MSP432E401Y is positioned for IoT nodes that require wired connectivity with real control processing: smart kiosks, energy monitors, and edge data concentrators. The single-core SimpleLink SDK and common tool set shared across Wi-Fi, Bluetooth low energy, Sub-1 GHz, Ethernet, Zigbee, and Thread MCUs means one software environment serves the wired node and any wireless siblings, cutting integration time. The 120 MHz core, 1 MB flash, and 256 kB SRAM run TLS-secured MQTT clients and local analytics, while USB-OTG provides local service access. Cost-effectiveness is a stated design goal of the MSP432E4 family, making per-node economics viable at fleet scale.
推荐
Test and Measurement Instrumentation
The MSP432E401Y serves test and measurement instruments that need an embedded Ethernet port for remote control (SCPI-over-LAN), data streaming, and firmware updates. The 120 MHz Cortex-M4F with DSP instructions post-processes ADC capture streams, the 1 MB flash stores calibration constants and instrument firmware with dual-image OTA capability, and 256 kB SRAM buffers acquisition data before Ethernet transmission. USB-OTG supports direct bench-PC connectivity, and QSSI interfaces high-speed acquisition front ends. Instruments built on this MCU also benefit from the pin-compatible TM4C129 drop-in path, giving procurement teams a second sourced part on the identical PCB footprint if supply of the MSP432E401Y tightens.
推荐
推荐产品汇总
工程参考数据： MSP432E401Y ——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 | TM4C129ENCPDT | TM4C1294NCPDT |
|---|---|---|---|
| Package | 128-TQFP (14 x 14 mm) | 128-TQFP (14 x 14 mm) - same | 128-TQFP (14 x 14 mm) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Core | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F |
| Ethernet | 10/100 MAC + PHY integrated | 10/100 MAC + PHY integrated | 10/100 MAC + PHY integrated |
| Software Ecosystem | SimpleLink SDK | TivaWare (not SimpleLink) | TivaWare (not SimpleLink) |
| Pin-to-Pin Compatibility | Reference | Pin-to-pin compatible (TI E2E confirmed) | Pin-compatible (project-documented) |
关键差异点
- SimpleLink platform membership （对比 TM4C1294NCPDT)
- Same PCB footprint with second-source path （对比 TM4C129ENCPDT)
- Family upgrade path within identical register map （对比 MSP432E411Y)
设计说明
Do not assume software portability between TM4C129 and MSP432E401Y despite pin-to-pin hardware compatibility. TI confirms on the E2E forum that TM4C129 MCUs are not compatible with the SimpleLink MCU family, so firmware built on TivaWare must be reworked onto the SimpleLink SDK when swapping the same physical PCB. Plan the migration as a software project with its own test cycle even though no board respin is needed.
The MSP432E401Y integrates the Ethernet PHY, so follow the TI datasheet magnetics layout guidance closely: keep the PHY differential pairs matched-length, route over a solid ground plane, and place the required termination and decoupling network per the reference design on the MSP-EXP432E401Y LaunchPad. Using the LaunchPad schematic as the layout starting point substantially reduces EMC risk for first-time Ethernet boards.
The MSP432E401Y has multiple supply domains (core and I/O rails per the datasheet); supply sequencing and per-rail decoupling must follow the datasheet power-up requirements to avoid latch-up or unreliable boot. Estimated: confirm exact rail voltages and sequencing order against the current TI datasheet revision before PCB power-tree sign-off, since the exact values were not captured in this record.
合规信息
Compliance status was not present in the verified web data; consult the TI product page quality section for RoHS/REACH certificates.
