MAX3483CSA+ - 3.3V 10Mbps RS-485 Transceiver | Maxim
部品番号: MAX3483CSA+ ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.96 | $2.96 |
| 10 | $2.83 | $28.30 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MAX3483CSA+ 概要
An RS-485/RS-422 transceiver is an interface IC that converts logic-level digital signals into differential line signals and receives differential line signals back into logic-level data. The differential architecture helps reject common-mode noise and supports communication over longer cables or noisier industrial environments. The MAX3483 family combines a transmitter, receiver, and driver-enable control in one package, reducing the number of discrete interface components required in a point-to-point or multidrop RS-485 link.
Key verified characteristics include 3.3V operation, operation to 10Mbps according to the manufacturer product-page description, one driver and one receiver per device, and slew-rate-limited operation. The manufacturer product page states that the MAX3483 slew-rate-limited drivers minimize electromagnetic interference and reduce reflections caused by improperly terminated cables. Distributor listings also classify the part as an RS-422/RS-485 interface IC and identify the 8-SOIC package.
The device is suitable for industrial equipment, instrumentation, building automation, data acquisition, and embedded control links that require a compact differential interface. A driver-enable input supports direction control in half-duplex RS-485 systems, allowing the transmitter to be disabled when the bus is not being driven. The receiver can then monitor the bus without creating a line conflict. Exact pin names, electrical limits, receiver thresholds, propagation delays, and temperature ratings must be taken from the manufacturer datasheet before final circuit design.
For layout, place the transceiver close to the connector and keep differential traces short, matched, and continuous. Provide the supply bypassing and protection required by the selected system-level interface requirements. RS-485 cables normally benefit from termination, biasing, and common-mode protection, but those network components should be designed from the actual cable length, topology, baud rate, and grounding arrangement.
This product page consolidates verified manufacturer and distributor information, package classification, source links, and application guidance. It does not invent electrical values absent from the supplied data; consult the MAX3483CSA+ manufacturer datasheet for the complete pinout, timing, electrical characteristics, recommended operating conditions, and application circuit.
ドロップイン代替品: MAX3483CSA+ — 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: MAX3483CSA+ （同一形状・フットプリント）.
クイック比較ツール — 並列比較する代替部品を選択:
MAX3483ESA+
✅ ドロップイン✓ 在庫あり
$2.96 / 個
データシートを見る →SP3483CN-L
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MAX3483CSA+T
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MAX3483CSA+ 仕様
| Product Type | RS-485/RS-422 transceiver |
| 電源電圧 | 3.3 V |
| Maximum Data Rate | 10 Mbps |
| Driver Configuration | 1 driver |
| Receiver Configuration | 1 receiver |
| Supported Standards | RS-485 and RS-422 |
| Driver Edge Rate | Slew-rate limited |
| パッケージ | 8-SOIC |
| 実装タイプ | Surface mount |
| Low-Power Operation | Low-power transceiver |
| EMI Reduction | Slew-rate-limited driver designed to minimize EMI |
| Cable Reflection Control | Driver designed to reduce reflections from improperly terminated cables |
| Manufacturer Lifecycle Status | Production |
| RoHS ステータス | Compliant |
MAX3483CSA+ 8-soic ピン配置ガイド
MAX3483CSA+ (8-soic パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: MAX3483CSA+.
詳細は データシート をご参照ください。
主な用途
MAX3483CSA+ の用途: 6 件s: Industrial RS-485 Control Links, Building Automation Networks, Data-Acquisition Modules, Embedded Serial Hubs, Instrumentation and Test Equipment, Low-Voltage Embedded Communication.
Industrial RS-485 Control Links
MAX3483CSA+ fits industrial control and instrumentation links that use RS-485 differential signaling at 3.3V. Place the transceiver between the controller UART and the field-bus connector, use its driver-enable control for half-duplex direction control, and provide external termination and biasing selected from the actual cable topology. The verified 10Mbps capability is useful for factory equipment, remote sensor nodes, and actuator controllers where the physical layer must be compact and low-power. The family’s slew-rate-limited driver is intended to reduce EMI and cable reflections, but reliable operation still depends on wiring, grounding, protection, and baud-rate margin.
おすすめ
Building Automation Networks
MAX3483CSA+ can support low-voltage building automation modules that exchange control and status data over RS-485. Its 3.3V supply target suits many embedded controller boards, while the single-driver, single-receiver arrangement keeps the physical-layer implementation compact in an 8-SOIC package. The installer must still design cable termination, fail-safe bias, isolation, and surge protection for the building environment. The manufacturer page highlights low-power operation and reduced EMI from slew-rate limiting, which helps when the transceiver sits close to a connector and long cables run through equipment rooms.
おすすめ
Data-Acquisition Modules
MAX3483CSA+ is appropriate for distributed data-acquisition equipment that brings measurements from remote sensor or instrument nodes back to a controller. The differential RS-485 interface helps reject common-mode disturbance encountered when sensor equipment shares power or ground with industrial machinery. The transceiver’s verified 10Mbps capability supports high-speed short-distance links, while the driver’s slew-rate limitation is intended to limit EMI and reflections. Engineers should select baud rate, cable length, termination, and protection together rather than treating 10Mbps as a universal maximum for every topology.
おすすめ
Embedded Serial Hubs
MAX3483CSA+ can be used in compact embedded serial hubs where one controller must connect to an RS-485 bus. The device combines a receiver and driver in one 8-SOIC package, allowing the receiver to remain available while the driver is disabled during bus turnaround. In a multidrop arrangement, node addressing and bus direction control must be coordinated by the host logic. Proper idle bias, termination at physical endpoints, common-mode protection, and shielded or twisted-pair cabling are important because the transceiver does not replace the complete RS-485 network interface.
おすすめ
Instrumentation and Test Equipment
MAX3483CSA+ suits laboratory and test equipment that needs a compact RS-485 control or measurement port. A host processor can transmit commands through the driver and read responses through the receiver while the enable input manages half-duplex direction. The 3.3V-powered device is convenient for mixed-signal systems, and the manufacturer describes the family as low-power. To maintain measurement integrity, keep the transceiver and its protection network away from sensitive analog paths, use a defined reference ground, and verify the cable’s common-mode behavior with the final peripheral and enclosure.
おすすめ
Low-Voltage Embedded Communication
MAX3483CSA+ is a practical choice for a 3.3V embedded system that already uses a UART and needs a standards-based differential physical layer. Connect the UART transmit and receive pins to the transceiver logic interface, control the driver through the enable function, and route the differential outputs through the board edge or connector. The 8-SOIC package simplifies assembly compared with a multi-chip discrete driver and receiver arrangement. Verify the exact pinout, supply limits, receiver thresholds, and timing from the manufacturer datasheet before layout release, especially when firmware timing is sensitive.
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: MAX3483CSA+ — 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 | MAX3483ESA+ | SP3483CN-L | MAX3483CSA+T |
|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC - comparison candidate | 8-SOIC - comparison candidate | 8-SOIC - comparison candidate |
| Brand | Analog Devices | Analog Devices | Maxim Integrated | Maxim Integrated |
| Interface Standards | RS-485/RS-422 | RS-485/RS-422 family comparison | RS-485 comparison | RS-485/RS-422 family comparison |
主な差別化要因
- Verified MAX3483-family operation up to 10Mbps （vs MAX3483ESA+)
- Slew-rate-limited driver for reduced EMI and reflections （vs SP3483CN-L)
- Single 8-SOIC package combines one driver and one receiver （vs MAX3483CSA+T)
設計ノート
Route the two differential conductors as a tightly coupled pair from the MAX3483CSA+ pins to the connector or transceiver interface. Keep the path short and avoid splitting the pair around unrelated circuitry. Place the transceiver close to the connector to minimize stub effects and radiated noise, then connect its supply pins to local decoupling. The supplied data does not specify the manufacturer’s exact capacitor values, so use the datasheet application circuit and the calculated supply-noise requirements for the final board.
Do not assume that the 10Mbps headline guarantees reliable communication over every RS-485 cable. Match the baud rate to cable length, topology, termination, noise, and receiver margins. Add termination only where the network design requires it, provide fail-safe biasing for an idle bus, and verify common-mode voltage at the receiver. The MAX3483 slew-rate limitation reduces reflections and EMI, but it does not replace correct network termination or grounding.
Separate the differential RS-485 pair from sensitive analog and clock paths, especially near the board connector. Use a continuous reference plane and avoid adding long copper stubs to either differential conductor. If the design requires surge, ESD, or isolation protection, place those network components in the signal path according to the protection-device capacitance and the manufacturer’s recommended layout. Confirm the exact pin names and enable polarity against the current MAX3483 datasheet before fabrication.
Design the 3.3V rail for the transceiver and any connected digital load rather than assuming the interface IC can share an unregulated or noisy supply. Keep local decoupling close to the supply pins and account for transients from cable protection devices. The verified data does not provide supply-current limits or operating-voltage tolerances, so calculate thermal and rail margin from the complete datasheet specifications before release.
コンプライアンス情報
A distributor result reports MAX3483CSA+ as RoHS compliant. The supplied data does not verify REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status.
