MC3486DR - 4-Channel RS-422/423 Receiver | Texas Instruments (Tape & Reel)
MPN： MC3486DR ✗ 停產MC3486DR 概覽
A differential line receiver is an interface IC that rejects common-mode noise and extracts a logic decision from two complementary conductors. The receiver belongs to the line-interface hierarchy: differential receiver → RS-422/RS-423 interface IC → digital interface IC → semiconductor. This category is used where transmitted logic signals must cross cables or noisy interconnects without allowing voltage offsets and interference to corrupt the receiving logic.
The MC3486 provides four independent channels, a shared enable control for the output states, and TTL-compatible outputs. Its 3-state capability permits each receiver output to enter a high-impedance state when the interface is not being selected. Fast transition times support reliable signaling, while the single 5 V supply simplifies connection to conventional TTL and CMOS-compatible system logic.
The MC3486DR is particularly suited to balanced communication links using RS-422 or RS-423 signaling. It can terminate long or electrically noisy interconnects at the receiving end, while its differential input structure provides noise immunity compared with a single-ended receiver. The device is also intended for use with the MC3487 quadruple differential line driver, creating matched transmit and receive channels.
Typical applications include industrial control links, instrumentation interfaces, multidrop communication systems, test equipment, and embedded systems requiring several differential inputs. Designers should provide the termination and biasing values required by the selected line standard, respect the enable polarity and output timing, and validate cable length and topology against the system’s signal-integrity requirements.
This page summarizes verified manufacturer information and distributor presence, while clearly separating unavailable electrical details. The MC3486DR’s main engineering value is its combination of four differential channels, 3-state TTL outputs, standards-oriented RS-422/RS-423 positioning, and a compact 16-pin surface-mount package.
直接替換替代品，適用於 MC3486DR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MC3486DR （相同外形與佔位） — 差異在於 Package, Product Type, Input Type, Transition Time, Logic Compatibility.
此產品無可直接替換的替代品。
申請替代品MC3486DR 規格
| Product Type | Quadruple differential line receiver |
| Number of Channels | 4 independent differential receivers |
| 供應電壓 | 5 V single supply |
| 輸出類型 | TTL-compatible 3-state outputs |
| Input Type | Differential |
| Standards Supported | ANSI TIA/EIA-422-B and TIA/EIA-423-B; ITU V.10 and V.11 |
| Output Enable Function | 3-state high-impedance output control |
| Transition Time | Fast transition times; exact value not provided |
| 封裝 | 16-pin SOIC |
| 工作溫度範圍 | 0°C to 70°C |
| Compatible Driver | MC3487 quadruple differential line driver |
| 安裝類型 | Surface mount |
| Logic Compatibility | TTL-compatible outputs |
| RoHS 狀態 | unknown |
| REACH Status | unknown |
| Lead-Free Status | unknown |
MC3486DR 16-pin soic 腳位配置指南
MC3486DR（16-pin soic 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： MC3486DR.
請參閱 資料表 以查看完整腳位配置。
典型應用
MC3486DR 適用於 6 應用s: Industrial Control Interfaces, Instrumentation and Test Equipment, Embedded Data Acquisition, Communication Equipment, Factory Automation and Control, Multidrop Data Links.
Industrial Control Interfaces
The MC3486DR fits multi-channel industrial control links that use balanced differential signaling and need digital outputs compatible with 5 V logic. Four independent receivers allow command, status, or measurement channels to be received in parallel, reducing package count compared with four separate single-channel devices. The device is intended for ANSI TIA/EIA-422-B and TIA/EIA-423-B interfaces, as well as ITU V.10 and V.11 signaling. The design must include the termination, biasing, grounding, and enable sequencing required by the selected standard. The verified operating range is 0°C to 70°C, so deployments beyond that range require a different qualified part.
推薦
Instrumentation and Test Equipment
The MC3486DR is appropriate for instrumentation systems that receive several low-level differential signals over cable runs. Its differential input architecture helps reject common-mode disturbance that could affect single-ended logic, while the four-channel integration supports parallel status and data paths. The 3-state outputs allow the receiver channels to be disconnected from a shared bus during inactive periods. Designers should determine termination values from the cable impedance and selected RS-422 or RS-423 configuration, then validate timing and noise margins across the intended cable length. Exact threshold and timing figures are not included in the verified search snippets.
推薦
Embedded Data Acquisition
MC3486DR can provide four differential receive channels in a compact 16-pin SOIC for embedded data-acquisition equipment. The device converts balanced line inputs into TTL-compatible outputs, allowing an external microcontroller, DSP, or programmable logic device to read the channels. The single 5 V supply matches the verified feature set, but the system designer must confirm that the downstream logic thresholds are compatible. Differential signaling is especially useful when sensor or source wiring runs near motors, switching supplies, or other noisy conductors. Cable routing, grounding, shield termination, and receiver termination should be validated together rather than optimized independently.
推薦
Communication Equipment
The MC3486DR is suitable for communication equipment that terminates several differential line inputs in a central receiver. It supports the signaling families identified by Texas Instruments, including TIA/EIA-422-B, TIA/EIA-423-B, ITU V.10, and ITU V.11, while its four independent channels make it useful for parallel data or control links. The 3-state outputs permit controlled bus sharing, provided the enable logic and output timing are compatible with the surrounding system. For robust deployment, use the receiver as part of a complete interface design with defined cable impedance, termination, common-mode limits, and grounding. The MC3487 is the manufacturer-identified complementary driver.
推薦
Factory Automation and Control
MC3486DR can be used in factory automation equipment where remote sensors, actuators, or controllers present differential line signals to a central electronics enclosure. Four channels allow multiple control lines to be decoded without using four separate receiver packages. Differential reception can improve noise immunity in environments containing relay contacts, motor drives, and long wiring runs, although actual performance depends on topology, cable shielding, and grounding. The verified operating range is commercial, from 0°C to 70°C, so the part should not be assumed suitable for extended industrial environments. Verify the complete manufacturer datasheet for enable polarity, timing, and absolute maximum conditions before production release.
推薦
Multidrop Data Links
The MC3486DR is appropriate for receiving differential signals in a multidrop or branched communication arrangement when the electrical design follows the selected line standard. Its four independent channels can receive separate node or control signals, while 3-state outputs help prevent unintended bus loading when a receiver is inactive. The receiver itself does not determine cable length, topology, or termination; those must be calculated from the standard and system topology. Place the receiver near the cable termination and maintain a controlled ground reference to reduce common-mode effects. The verified snippets do not provide propagation delay, input thresholds, or maximum cable-length values, so these must be obtained from the manufacturer documentation.
推薦
推薦產品摘要
工程參考資料，適用於 MC3486DR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MC3486DRR |
|---|---|---|
| Package | 16-pin SOIC | 16-pin SOIC related ordering variant |
| Brand | Texas Instruments | Texas Instruments |
| Receiver Channels | 4 independent differential receivers | Related MC3486 variant; exact value not provided |
| Compatible Driver | MC3487 | MC3487 family relationship not specified |
主要差異化特點
- Four differential receive channels in one package (對比Single-channel RS-422 receiver designs)
- 3-state TTL-compatible outputs (對比Non-3-state receiver implementations)
- Standards-oriented differential interface support (對比Single-ended digital input implementations)
- Matched MC3487 system relationship (對比Unmatched receiver-only interface designs)
設計說明
Treat the differential pair as a controlled transmission line rather than two unrelated logic wires. Verify the cable impedance, receiver termination, topology, and grounding against the selected TIA/EIA-422-B or TIA/EIA-423-B design rules. The verified snippets confirm differential inputs but do not provide threshold, common-mode rejection, timing, or maximum cable-length values, so obtain those limits from the manufacturer datasheet before calculating timing margins.
Place the receiver close to the cable connector and termination components to minimize the unterminated trace between the connector and input. Keep the two members of each differential pair routed together with consistent geometry, minimize stubs, and maintain a continuous return path. For four channels, preserve channel-to-channel spacing and avoid routing high-current switching paths beneath the receiver inputs.
Decouple the single 5 V supply close to the MC3486DR with the manufacturer-recommended bypass network. Because the device interfaces with external cable-connected equipment, verify that the supply remains within the device’s absolute limits despite cable transients and system switching noise. Exact supply-current limits, capacitor values, and absolute maximum ratings are not present in the supplied data and must be taken from the official datasheet.
Do not infer that every related MC3486 ordering suffix is automatically interchangeable with MC3486DR. Package suffix, temperature grade, pinout, and lifecycle status must be checked independently. Also do not use the 3-state output feature without confirming the enable polarity and timing from the datasheet; an incorrectly controlled output can contend with an external bus even when the differential receiver is otherwise functional.
合規資訊
The supplied manufacturer and distributor snippets do not provide verified RoHS, REACH, lead-free, halogen-free, or conflict-minerals statements. AEC-Q100 is not applicable based on the supplied information, which describes an industrial/communications interface IC rather than an automotive-qualified device.