MC3487J - Quad Differential Driver, 5V, DIP-16 | Texas Instruments
部品番号: MC3487J ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.166 | $0.17 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MC3487J 概要
A differential line driver is an interface IC that converts a TTL-compatible logic signal into a balanced pair of differential signals. The balanced topology helps reject common-mode noise and supports reliable point-to-point data transmission. In the interface hierarchy, the MC3487J belongs to the line-driver family and implements the transmit side of a differential communications link. Its intended counterpart is the MC3486 quadruple line receiver.
The MC3487 contains four independent channels, a single 5 V supply architecture, high-impedance inputs, and 3-state outputs. The official product description identifies these features as supporting reduced input current and minimized loading. Power-up and power-down protection are also listed in the device literature. The verified distributor data identifies the MC3487J as a military-temperature-grade, through-hole, 16-terminal rectangular DIP, but does not provide all timing, output-current, or temperature limits.
Each output is intended for a balanced differential connection rather than a single-ended RS-232-style signal. Because outputs can enter a high-impedance state, the device can participate in bus-direction or driver-enable control when the system requires it. Designers must still account for the differential network, termination strategy, unused inputs, and the voltage levels required by the connected receiver. Exact propagation delay, transition time, output impedance, and common-mode limits require the manufacturer datasheet.
Typical uses include industrial instrumentation, computer peripherals, point-to-point data links, test equipment, and legacy communications interfaces. In a transmitter design, the MC3487J sits between a TTL/CMOS-compatible control circuit and a balanced cable or board trace. The receiving end can use an MC3486 or another compatible differential receiver. Keep the driver close enough to the connector or transceiver boundary that unbalanced stub lengths remain short and the cable transition is clean.
The principal design consideration is verifying the 5 V rail and every connected differential input against the device electrical limits before layout release. Decoupling should follow the manufacturer guidance, and unused inputs must not be left in an undefined state if they can affect system behavior. The MC3487J is appropriate when a legacy, balanced, TTL-driven interface is required and a through-hole DIP-16 assembly is preferred over a surface-mount package.
This page consolidates the verified Texas Instruments product description, manufacturer datasheet link, package information, distributor price indication, and application-oriented design guidance. It also separates verified facts from parameters that still require confirmation in the datasheet, helping engineers make an evidence-based sourcing decision.
ドロップイン代替品: MC3487J — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MC3487J （同一形状・フットプリント） — 相違点: Input Compatibility.
クイック比較ツール — 並列比較する代替部品を選択:
MC3487N
✅ ドロップイン✓ 在庫あり
$0.23 / 個
データシートを見る →SN75173N
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC3487J 仕様
| Product Type | Quadruple differential line driver |
| Number of Drivers | 4 |
| 電源電圧 | 5 V |
| Interface Standard | ANSI TIA/EIA-422-B and ITU Recommendation V.11 |
| Input Compatibility | TTL-compatible buffered input |
| Output State | 3-state |
| Input Impedance | High-impedance |
| Protection Features | Power-up and power-down protection |
| Package Type | 16-pin dual-in-line package |
| Package Code | DIP |
| Terminal Form | Through-hole |
| Number of Terminals | 16 |
| Temperature Grade | Military |
| Package Shape | Rectangular |
| Application | Differential point-to-point data transmission |
MC3487J ピン構成
| ピン 1 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 2 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 3 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 4 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 5 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 6 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 7 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 8 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 9 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 10 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 11 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 12 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 13 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 14 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 15 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
| ピン 16 | [DATA_NEEDED: pin name] — Pin assignment must be verified from the manufacturer datasheet. |
主な用途
MC3487J の用途: 6 件s: Industrial Point-to-Point Differential Link, Test and Measurement Equipment, Computer Peripheral Interface, Longer-Distance Balanced Communications, Legacy Communication Backplane, Digital Control Interface Card.
Industrial Point-to-Point Differential Link
The MC3487J fits a legacy industrial data link when four balanced transmit channels and a single 5 V rail are required. Place the driver at the equipment boundary and connect each differential output pair to a compatible receiver through a controlled cable or board-level channel. The verified design supports ANSI TIA/EIA-422-B and ITU Recommendation V.11 alignment, while the 3-state outputs provide a way to disable drivers when the system needs bus-direction control. Validate timing, load current, cable length, and termination against the complete datasheet before deployment.
おすすめ
Test and Measurement Equipment
The four differential outputs can distribute control or stimulus signals across instrument front ends in a 5 V control system. MC3487J is useful when the external cable or cable-bus interface requires balanced signaling rather than a single-ended connection. Its buffered TTL-compatible inputs reduce source loading, and the high-impedance inputs can simplify connection from digital control circuitry. Because the verified excerpt does not provide propagation-delay or transition-time values, the instrument bandwidth must be checked against the manufacturer datasheet rather than inferred from the four-channel count.
おすすめ
Computer Peripheral Interface
A legacy computer peripheral or industrial controller can use the MC3487J to translate TTL-compatible control signals into four balanced differential channels. This is especially relevant when the cable leaves the circuit board and common-mode interference could affect a single-ended connection. The 16-pin through-hole DIP package is convenient for repairable and manually assembled legacy hardware. The design must keep the differential pair geometry controlled, provide the required receiver and termination arrangement, and verify that the peripheral’s voltage levels match the MC3487J input and output specifications.
おすすめ
Longer-Distance Balanced Communications
The MC3487J is appropriate for a balanced communication link where the receiver and cable installation are designed around differential signaling. Its four independent channels allow several data or control paths to share one package, reducing the number of line-driver ICs in a multi-channel interface. The manufacturer identifies the device for ANSI TIA/EIA-422-B and ITU Recommendation V.11 requirements, but cable distance and data rate still depend on termination, receiver thresholds, noise, and transceiver performance. Confirm those system values in the datasheet and the selected receiver documentation.
おすすめ
Legacy Communication Backplane
MC3487J can serve as the transmit-side element in a legacy backplane where multiple differential channels are required and the board uses through-hole DIP components. The 3-state outputs support controlled interface sharing, while the buffered inputs reduce loading from the digital controller. Backplane routing must maintain differential impedance consistency and minimize stubs, especially when the signal leaves the board through a connector. The supplied data does not specify operating temperature limits or timing margins, so validate the complete backplane envelope before using the military-grade suffix as a system-level guarantee.
おすすめ
Digital Control Interface Card
A control card can use the four channels of MC3487J to distribute logic-level commands to external modules through balanced differential connections. The single 5 V supply simplifies the local interface arrangement, and the through-hole DIP package supports serviceable industrial electronics. Inputs must be driven from compatible logic levels, and unused channels must be handled according to the manufacturer’s recommended input states. The package’s long leads can increase parasitic inductance, so keep the device near the connector and provide local supply decoupling following the datasheet and board-layout guidance.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MC3487J — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MC3487N | SN75173N |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Device Function | Quadruple differential line driver | Quadruple differential line driver | Quadruple differential line receiver |
| Number of Channels | 4 | 4 | 4 |
| Standard Alignment | ANSI TIA/EIA-422-B and ITU Recommendation V.11 | MC3487 family reference; exact suffix data not provided | TIA/EIA-422-B, TIA/EIA-423-B, TIA/EIA-485-A and ITU recommendations per comparison result |
主な差別化要因
- Transmit-side differential interface （vs SN75173N)
- Four-channel integration （vs MC3487N)
- Verified through-hole military-grade package identification （vs MC3487N)
設計ノート
Place the MC3487J close to the board connector or external-interface boundary so each differential pair reaches the connector with minimal unmatched stub length. Keep the two conductors of each pair routed together and maintain consistent geometry. The supplied data does not specify a differential impedance target, so derive that value from the complete system interface and receiver documentation rather than guessing.
Do not substitute a differential receiver for a differential driver merely because both devices use a 16-pin DIP. The verified comparison identifies SN75173N as a receiver, while MC3487J is the transmit-side driver. Before replacing any part, verify pin direction, enable polarity, supply levels, output impedance, timing, and electrical limits against the manufacturer datasheets.
Use the single 5 V supply architecture as specified by the manufacturer and verify the supply tolerance, current, and power-up behavior against the MC3487 datasheet. Place local decoupling close to the device pins according to the manufacturer layout guidance. Do not infer allowable supply ripple, output-current margin, or absolute maximum ratings from the distributor snippets; those values are not present in the supplied verified data.
コンプライアンス情報
Compliance status is not present in the supplied verified manufacturer or distributor data. The military-temperature-grade designation does not by itself establish AEC-Q100 qualification, RoHS compliance, REACH compliance, lead-free status, or conflict-minerals compliance.
