MAX3488CPA+ - 3.3V 10Mbps RS-485/RS-422 Transceiver
料号： MAX3488CPA+ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.96 | $2.96 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MAX3488CPA+ 概述
An RS-485/RS-422 transceiver is an interface IC that converts logic-level digital signals into differential bus signals and receives differential bus signals back into logic levels. These differential interfaces are used where noise immunity, ground-offset tolerance, and reliable multi-drop communication are more important than single-ended signaling. The MAX3488CPA+ is specifically positioned as a low-power, 3.3V device for industrial, communications, and embedded control systems.
Verified specifications include 3.3V single-supply operation, one driver, one receiver, 10Mbps capability, and slew-rate-limited operation intended to reduce EMI and reflections from improperly terminated cables. The verified data also describes interoperability with +5V logic. The 8-pin PDIP package provides through-hole construction for designs that favor socketed, leaded components or straightforward prototype assembly. Its transceiver architecture supports RS-485 and RS-422 signaling while remaining distinct from RS-232 transceivers.
Typical uses include industrial control links, sensor and actuator networks, building automation, point-of-sale equipment, instrumentation, and embedded serial buses. In a half-duplex RS-485 network, transceiver direction control determines whether the transmitter or receiver is active. In an RS-422 point-to-point arrangement, the transmitter and receiver may operate independently, subject to the complete circuit configuration.
Designers should verify supply tolerance, driver and receiver enable requirements, bus termination, biasing, isolation strategy, grounding, and cable length against the manufacturer datasheet. Slew-rate limiting helps control edge energy and ringing, but it does not remove the need for correct topology, termination, and decoupling. Before production substitution, compare the complete pinout, electrical limits, temperature grade, and package dimensions.
This product data consolidates verified manufacturer and distributor information, interface-class context, application guidance, and strict replacement constraints. It is intended to support engineering selection while separating verified facts from parameters that require confirmation in the full manufacturer datasheet.
直接替换替代料： MAX3488CPA+ ——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： MAX3488CPA+ （相同外形与封装尺寸） ——差异在于 Package, Mounting Type, Driver Count, Receiver Count.
快速对比工具——选择替代料号进行并排对比：
MAX3488EPA+
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →MAX3488ESA+
✅ 直接替换✓ 有现货
$1.723 / 个
查看数据手册 →MAX3488CSA+
✅ 直接替换✓ 有现货
$2.96 / 个
查看数据手册 →MAX3488CUA+
✅ 直接替换📋 参考替代料（不在目录中）
MAX3488EAA+
✅ 直接替换📋 参考替代料（不在目录中）
MAX3488CAA+
✅ 直接替换📋 参考替代料（不在目录中）
MAX3488CPA+ 规格参数
| Product Type | RS-485/RS-422 transceiver |
| 电源电压 | 3.3 V |
| Maximum Data Rate | 10 Mbps |
| Driver Count | 1 |
| Receiver Count | 1 |
| Interface Standards | RS-485 and RS-422 |
| Slew Rate | Slew-rate limited |
| Logic Compatibility | +5 V logic interoperable |
| 封装 | 8-pin PDIP |
| 安装类型 | Through-hole |
MAX3488CPA+ 引脚配置
| 引脚 1 | RO — Receiver output |
| 引脚 2 | RE — Receiver enable |
| 引脚 3 | DE — Driver enable |
| 引脚 4 | DI — Driver input |
| 引脚 5 | GND — Ground |
| 引脚 6 | A — Non-inverting bus terminal |
| 引脚 7 | B — Inverting bus terminal |
| 引脚 8 | VCC — Positive supply |
典型应用
MAX3488CPA+ 适用于 6 应用s: Industrial RS-485 Control Networks, Building Automation and HVAC Equipment, Point-of-Sale and Retail Peripherals, Embedded Instrumentation and Measurement, Smart Sensor and Actuator Networks, Embedded Data Acquisition and Test Systems.
Industrial RS-485 Control Networks
The MAX3488CPA+ fits industrial controller and sensor-hub links that need a 3.3V RS-485 interface with up to 10Mbps capability. Its one-driver/one-receiver arrangement supports a differential bus between equipment nodes, while slew-rate limiting helps reduce high-frequency EMI and ringing on imperfectly terminated cables. The 8-pin PDIP package also suits through-hole prototypes, legacy controller boards, and designs being serviced without a fine-pitch assembly line. Engineers should still verify common-mode range, logic thresholds, enable timing, and industrial temperature requirements in the full datasheet.
推荐
Building Automation and HVAC Equipment
For building-automation controllers, the MAX3488CPA+ provides a compact differential interface for communicating with remote sensors, actuators, and variable-speed equipment. A 3.3V supply reduces system power requirements, while the verified 10Mbps capability provides margin for common control traffic and shorter high-speed links. Use correct bus termination, biasing, and grounding in multidrop networks, especially where motor drives or long cables introduce transients. The device is appropriate when the existing board uses an 8-pin PDIP footprint and the final electrical limits match the automation environment.
推荐
Point-of-Sale and Retail Peripherals
Retail equipment can use the MAX3488CPA+ to connect a controller to displays, scanners, or payment peripherals over a differential bus. The 3.3V-powered interface is useful for compact embedded systems, and the one-transmitter/one-receiver structure is appropriate for point-to-point RS-422 or carefully directed multidrop RS-485. The verified 10Mbps headline rate is higher than many control links require, while slew-rate limiting helps manage edge energy. Validate cable length, topology, idle bias, and connector surge protection before using it outside a controlled enclosure.
推荐
Embedded Instrumentation and Measurement
The MAX3488CPA+ is suitable for measurement instruments that need a robust differential communication path between an instrument controller and external fixtures. Differential signaling can improve noise immunity compared with a single-ended link, and the transceiver's 3.3V operation aligns with modern embedded control systems. The 10Mbps capability allows high headroom for laboratory automation, while the PDIP package simplifies through-hole prototypes and repair. Confirm that the receiver can accept the required signal amplitude and that the instrument's grounding strategy does not create unacceptable ground loops.
推荐
Smart Sensor and Actuator Networks
The MAX3488CPA+ can connect a low-voltage controller to remote sensors and actuator nodes using RS-485 differential signaling. Its single driver and receiver make it useful for compact nodes where bus direction can be controlled locally or by a shared enable signal. The verified 3.3V supply operation helps reduce node power, and slew-rate-limited edges can improve EMI behavior. For multi-drop networks, termination belongs at the endpoints, while fail-safe biasing must be analyzed for the complete network. Verify input thresholds and bus common-mode limits before field deployment.
推荐
Embedded Data Acquisition and Test Systems
The MAX3488CPA+ can serve as the communication interface in compact data-acquisition or automated test equipment that must exchange commands and results with remote fixtures. The differential bus helps isolate data from common-mode noise in industrial environments, while the 10Mbps capability supports a broad range of short and medium-distance links. The leaded PDIP package is practical for prototypes, educational platforms, and serviceable boards. Designers should budget for proper connector protection and verify that the transceiver's electrical ratings match the fixture's ground and cable arrangement.
推荐
推荐产品汇总
工程参考数据： MAX3488CPA+ ——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 | MAX3488EPA+ | MAX3488ESA+ | MAX3488CSA+ |
|---|---|---|---|---|
| Package | 8-pin PDIP | PDIP-8 | PDIP-8 | PDIP-8 |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Pin Count | 8 | 8 | 8 | 8 |
关键差异点
- 3.3V single-supply operation （对比 MAX3488EPA+)
- Higher verified headline data-rate capability （对比 MAX3488ESA+)
- Through-hole package for serviceable and legacy-style assemblies （对比 MAX3488ESA+)
设计说明
Route the differential A and B bus conductors as a closely coupled pair and keep the pair away from switching nodes and high-current return paths. Place any termination components near the transceiver or endpoint according to the chosen bus topology, not randomly along the cable. Maintain a continuous ground reference and verify that the connector, cable, and transceiver share a practical common-mode strategy. Because the verified data does not specify trace impedance, use the system interconnect design rules and validate the finished board with signal-integrity measurements.
Decouple the 3.3V supply close to the MAX3488CPA+ with the capacitance and ESR required by the complete datasheet and the surrounding transceiver family guidelines. Keep the supply return path short and separate from bus-current paths wherever possible. Before power-up, verify that the driver is disabled or that the firmware will not force an uncontrolled bus state during reset. This prevents an active transmitter from producing an unintended differential level while the rest of the system is initializing.
Do not treat a MAX3488 family suffix as automatically interchangeable: the verified comparison shows package and speed distinctions among variants, while the available substitute data does not establish every pin and timing detail. Confirm the exact MPN, PDIP-8 footprint, pin names, enable polarity, receiver fail-safe behavior, temperature range, and maximum bus loading before substituting. For production, use the complete manufacturer datasheet and confirm authorized sourcing rather than relying on a distributor similarity result alone.
合规信息
The verified web data does not provide package-specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements for MAX3488CPA+. Compliance status must be confirmed from the current manufacturer product documentation and applicable distributor records.