TMC2084-HT - 3.3V 48-TQFP CircLink Controller | Microchip
MPN: TMC2084-HT ✓ Hoạt độngTMC2084-HT Tóm tắt
A CircLink controller is a semiconductor interface device that extends controller-area network communication to remote I/O nodes. In a token-passing network, one node holds the token and communicates in a defined order, reducing simultaneous transmission contention. The TMC2084 therefore sits between a host node and distributed I/O devices, helping organize network traffic while exposing local control and status information to the host.
The TMC2084-HT operates from a 3.3 V low-power CMOS supply and provides 5 V tolerant I/O, allowing it to interface with external circuitry whose logic levels exceed the core supply. The enhanced token-passing protocol supports up to 15 nodes per network according to the verified data. A token-retry mechanism and consecutive node-ID assignment help the controller recover after communication interruptions and organize network participants.
The controller supports 64-byte or 128-byte packets, providing a choice between communication efficiency and payload granularity. Its parallel interface makes it suitable for systems where the controller is connected to a host processor or dedicated interface logic. The 48-TQFP package is a surface-mount, fine-pitch package suitable for industrial and embedded control equipment.
Typical applications include industrial automation equipment, factory monitoring systems, distributed data-acquisition modules, remote I/O racks, building-control equipment, and embedded test systems. In these systems, the TMC2084 can organize token-based communication between a host controller and remote I/O nodes, reducing the need for a dedicated processor at every node.
Designers should verify the exact pin assignments, clocking, reset, interface timing, and electrical limits against the Microchip TMC2084 manufacturer datasheet before layout. Because the available search results provide only a subset of the complete electrical and timing data, values not explicitly present in the verified sources are marked for data completion rather than inferred.
Bộ thay thế dễ dàng lắp đặt cho TMC2084-HT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TMC2084-HT (cùng hình factor và footprint) — khác nhau ở Package.
Không có bộ thay thế dễ dàng lắp đặt sẵn có cho sản phẩm này.
Yêu cầu các bộ thay thếTMC2084-HT Thông số kỹ thuật
| Product Type | Standalone-mode CircLink controller and intelligent remote I/O controller |
| Điện áp cung cấp | 3.3 V |
| CAN Data Rate | 5 Mbps |
| I/O Logic Tolerance | 5 V tolerant I/O |
| Network Topology | Enhanced token-passing protocol from ARCNET |
| Maximum Nodes per Network | 15 nodes |
| Token Retry Mechanism | Supported |
| Packet Size | 64 bytes or 128 bytes per packet |
| Node Addressing | Consecutive node ID assignment |
| Host Relationship | Works with host node TMC2074 or TMC2072 |
| Loại giao diện | Parallel interface |
| Hộp | 48-pin TQFP, 7 mm × 7 mm |
| Kiểu lắp đặt | Surface mount |
| Process Technology | Low-power CMOS |
Hướng dẫn cấu hình chân TMC2084-HT 48-pin tqfp, 7 mm × 7 mm
Cấu hình chân cho TMC2084-HT (48-pin tqfp, 7 mm × 7 mm gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.
Không có dữ liệu chân cụ thể sẵn có cho TMC2084-HT.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
TMC2084-HT phù hợp cho 6 Áp dụngs: Industrial Automation Control, Distributed Remote I/O, Factory Monitoring Systems, Building and Facility Control, Embedded Test and Measurement, Process and Machine Control.
Industrial Automation Control
The TMC2084-HT fits distributed industrial automation systems where a host controller must communicate with multiple remote I/O nodes. Its enhanced token-passing protocol organizes network access, while support for up to 15 nodes allows a single network to cover several controlled endpoints. The 3.3 V CMOS supply and 5 V tolerant I/O are useful when interfacing the controller with external logic. The 5 Mbps CAN connection should be paired with the appropriate transceiver and verified against the system’s cable, termination, timing, and environmental requirements.
Được đề xuất
Distributed Remote I/O
TMC2084-HT is designed for intelligent remote I/O arrangements in which a host node coordinates peripheral modules over a token-passing network. Consecutive node-ID assignment helps organize participating devices, and the token-retry mechanism supports controlled recovery after communication interruptions. The 64-byte and 128-byte packet options allow the system designer to match transaction size to the application. For equipment requiring many nodes, long cables, or isolated field wiring, the interface transceiver and power architecture must be selected separately from the TMC2084-HT.
Được đề xuất
Factory Monitoring Systems
The TMC2084-HT can support factory monitoring systems that collect status information from distributed sensors, switches, and actuators. Token passing provides an ordered communication method for remote nodes, while the parallel interface allows the controller to connect with host-side digital logic. A 5 Mbps CAN link can provide a responsive communication path when the physical layer is implemented correctly. Designers should budget for transceiver protection, grounding, surge handling, and fault recovery rather than treating the controller IC as a complete field-bus solution.
Được đề xuất
Building and Facility Control
TMC2084-HT is applicable to building-control equipment requiring centralized control of remote lighting, HVAC, access, or environmental-monitoring nodes. The controller’s token-passing architecture helps manage deterministic access among a bounded group of nodes, and its 3.3 V core operation fits modern embedded control platforms. The 5 V tolerant I/O capability simplifies connection to suitable external logic, but system designers must still verify voltage levels, isolation requirements, EMC behavior, and environmental limits before deployment in building equipment.
Được đề xuất
Embedded Test and Measurement
The TMC2084-HT can be used in embedded test systems that distribute measurement or control functions across multiple remote modules. The host node can coordinate the remote I/O controllers through the enhanced token-passing protocol, and selectable 64-byte or 128-byte packets provide flexibility for different data volumes. The 5 Mbps CAN connection is useful for responsive control traffic, but instrument-grade designs should also address calibration, grounding, analog isolation, and timing margins beyond the controller’s digital specifications.
Được đề xuất
Process and Machine Control
TMC2084-HT can serve as part of a process-control network when a host node needs to coordinate multiple remote I/O points. The bounded 15-node network and token-retry behavior provide a defined communication structure, while the parallel interface supports connection to control logic. The controller itself is a digital interface component, so motor drives, relays, sensors, safety interlocks, and actuators require separate external circuitry. The final design must verify timing, fault containment, and environmental requirements for the target machine.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TMC2084-HT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này |
|---|---|
| Package | 48-pin TQFP, 7 mm × 7 mm |
| Brand | Microchip Technology |
| Supply Voltage | 3.3 V |
| I/O Tolerance | 5 V tolerant I/O |
| CAN Data Rate | 5 Mbps |
| Network Nodes | Up to 15 nodes |
| Packet Size | 64 bytes or 128 bytes |
| Interface | Parallel interface |
| Protocol | Enhanced token passing from ARCNET |
Bảo phân biệt quan trọng
- Purpose-built standalone-mode CircLink controller (vsGeneric interface-controller alternatives)
- Designed for distributed token-passing networks (vsTMC208KB5C)
- 3.3 V core with 5 V tolerant I/O (vsTHS0842IPFB)
Ghi chú thiết kế
Use the official Microchip TMC2084 package drawing and land pattern for the 48-pin TQFP before routing. The verified source identifies the package as 7 mm × 7 mm, but it does not provide the complete pin assignment or recommended footprint in the supplied excerpts. Confirm pin 1 orientation, exposed-pad or thermal-pad requirements, and clearance against the exact datasheet revision before fabrication.
Design the 3.3 V supply and I/O reference rails independently. The controller is specified as low-power CMOS with 5 V tolerant I/O, so do not assume that every external pin may safely tolerate 5 V. Review the manufacturer’s absolute maximum ratings, input thresholds, output drive, and power sequencing requirements before connecting field-side logic.
The verified data identifies a 5 Mbps CAN connection, but the TMC2084-HT is not a complete physical-layer network device. Select and place the required CAN transceiver, protection components, termination, grounding, and isolation according to the system topology. Validate rise time, reflections, common-mode range, and recovery behavior on the actual board rather than relying only on the controller’s nominal data rate.
Do not treat a similarly named TMC2084 variant as a drop-in replacement without checking the exact ordering code. The provided comparison material names TMC2084-MT, but it does not establish identical pinout, temperature grade, qualification, or timing. Review the Microchip ordering guide and exact datasheet before changing the BOM or reusing an existing PCB.
Thông tin tuân thủ
The supplied search snippets identify a low-profile fine-pitch TQFP package and RoHS-related classification data in one comparison result, but do not provide authoritative compliance statements for TMC2084-HT. Compliance fields remain unknown rather than inferred.
