MAX232DE4 - Dual RS-232 Transceiver, 5V, 16-SOIC | Texas Instruments
部品番号: MAX232DE4 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MAX232DE4 概要
An RS-232 transceiver is an interface IC that translates low-voltage digital logic levels into RS-232 levels and converts incoming RS-232 signals back into TTL/CMOS levels. The MAX232 belongs to the interface IC hierarchy, where a transceiver integrates driver, receiver, and voltage-generation functions. It is commonly used in industrial control, data acquisition, embedded instrumentation, and legacy computer equipment.
The verified product information identifies the MAX232DE4 as a 2/2 full RS-232 transceiver in a 16-SOIC package. It operates from a single 4.5 V to 5.5 V supply and supports an operating temperature range of 0 C to 70 C. Additional verified features include operation to 120 kbit/s, low supply current, and ESD protection exceeding 2000 V under the cited JESD test condition.
The charge-pump circuit allows the device to generate positive and negative RS-232 levels from one low-voltage supply, avoiding a separate negative power rail. The dual-driver and dual-receiver organization supports two serial channels or a full-duplex link on one device. The receiver converts remote RS-232 signals into logic levels suitable for digital controllers, while the driver boosts local logic signals to RS-232 voltage levels.
Typical uses include RS-232 links in test equipment, serial adapters, industrial controllers, point-of-sale systems, and embedded measurement products. The 16-SOIC package supports conventional surface-mount PCB assembly. The verified commercial result lists the part with DigiKey, Mouser, Octopart, and other distributors, but the supplied data does not provide a current unit price or confirmed lead time.
For robust implementation, follow the manufacturer datasheet for capacitor selection, pin orientation, and signal-routing requirements. The MAX232DE4 is not a power semiconductor, so SOA data is not applicable. The product should be selected only where the 0 C to 70 C temperature range and the verified electrical limits match the target system requirements.
This page combines verified distributor and manufacturer-linked data with application guidance, design considerations, and a package-focused product summary for engineers evaluating RS-232 interface implementations.
ドロップイン代替品: MAX232DE4 — 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。
クイック比較ツール — 並列比較する代替部品を選択:
MAX232DWR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MAX232IDR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MAX202IDG4
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ST232CDR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADM202JRWZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MAX232DE4 仕様
| Product Type | Dual RS-232 driver/receiver transceiver |
| Number of Drivers | 2 |
| Number of Receivers | 2 |
| Supply Voltage Range | 4.5 V to 5.5 V |
| データレート | Up to 120 kbit/s |
| 動作温度範囲 | 0 C to 70 C |
| Input Levels | Plus or minus 30 V maximum input levels |
| 電源電流 | 8 mA typical |
| Charge-Pump Capacitors | 1.0 uF each, integrated charge-pump function |
| ESD Protection | Exceeds 2,000 V human-body protection under the cited JESD condition |
| パッケージ | 16-SOIC |
| 実装タイプ | Surface mount |
| Interface Standard | EIA/TIA-232-F |
| Receiver Logic Threshold | 1.3 V typical |
| Receiver Hysteresis | 0.5 V typical |
| Logic Compatibility | TTL/CMOS |
| ESD Standard Reference | JESD-2000-V human-body condition as cited in the supplied search data |
| RoHS ステータス | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
| Lead-Free Status | unknown |
MAX232DE4 16-soic ピン配置ガイド
MAX232DE4 (16-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: MAX232DE4.
詳細は データシート をご参照ください。
主な用途
MAX232DE4 の用途: 6 件s: Industrial Serial Control, Test and Measurement Equipment, Legacy Computer Serial Ports, Data Acquisition Systems, Embedded Service Interfaces, Point-of-Sale and Commercial Equipment.
Industrial Serial Control
MAX232DE4 is suitable for linking a 5 V embedded controller to an RS-232 equipment interface. Its verified 4.5 V to 5.5 V single-supply operation removes the need for a separate negative logic-side rail, while the integrated charge-pump function generates the bipolar levels required by the RS-232 line. With two drivers and two receivers, the device can support two channels or a full-duplex link. The 120 kbit/s capability covers many conventional industrial control and configuration ports. Design the external capacitor network, grounding, and connector protection according to the manufacturer datasheet, especially when cables leave the enclosure.
おすすめ
Test and Measurement Equipment
MAX232DE4 can provide the physical RS-232 layer for test instruments, bench controllers, and legacy data-acquisition systems. A local UART produces TTL/CMOS signals that the two drivers convert to RS-232 levels, while the receivers return remote serial commands and measurements to the controller. The 16-SOIC package is practical for compact surface-mount designs, and the single 5 V supply simplifies system power planning. For exposed instrument ports, add appropriate connector-level protection and route the interface away from noisy analog and switching sections to reduce ground-bounce and cable-induced errors.
おすすめ
Legacy Computer Serial Ports
MAX232DE4 is appropriate for connecting modern low-voltage logic to legacy RS-232 equipment such as printers, service consoles, and configuration ports. The two drivers support outbound RS-232 signaling, while the two receivers recover incoming signals for the host controller. The verified 0 C to 70 C range suits ordinary office and commercial environments, but it should not be assumed suitable for automotive or extended-temperature use. Confirm the connector pinout, signal polarity, cable length, and ground reference at the system level before production deployment.
おすすめ
Data Acquisition Systems
MAX232DE4 can connect a measurement controller or data-logging instrument to a remote RS-232 sensor, analyzer, or service interface. The receiver path converts incoming RS-232 levels to logic-compatible signals, while the driver path provides command transmission. The 120 kbit/s rate is suitable for many low-to-moderate-rate serial acquisition links, although actual throughput depends on the UART settings and protocol overhead. Use a low-impedance ground connection, keep the RS-232 trace away from sensitive analog nodes, and validate cable behavior before relying on long-distance communication.
おすすめ
Embedded Service Interfaces
MAX232DE4 is useful when an embedded system needs a maintenance or configuration port rather than a continuous high-speed communications link. A UART can use one driver and one receiver for a full-duplex service channel, while the remaining driver and receiver can support a second channel. The single-supply architecture helps reduce power-tree complexity compared with implementations requiring external level conversion and a negative rail. Because the verified temperature range is 0 C to 70 C, specify an enclosure within that range or select an alternative device with a wider temperature grade if environmental requirements are more severe.
おすすめ
Point-of-Sale and Commercial Equipment
MAX232DE4 can support serial accessories, printers, scanners, and service terminals in commercial equipment. The two-driver, two-receiver arrangement allows multiple RS-232 lines to share one compact 16-SOIC device, reducing board area compared with separate single-channel transceivers. Its 4.5 V to 5.5 V supply range aligns with many embedded platforms, and the 120 kbit/s capability matches numerous peripheral ports. A production design should still include correct charge-pump capacitors, controlled ground return, connector shielding, and protection appropriate to the expected cable length and user-accessible environment.
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: MAX232DE4 — 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 | MAX232DWR | MAX232IDR | MAX202IDG4 | ST232CDR | ADM202JRWZ |
|---|---|---|---|---|---|---|
| Package | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | STMicroelectronics | Analog Devices |
主な差別化要因
- Single 5 V supply architecture （vs MAX232DWR)
- Dual driver and dual receiver organization （vs MAX202IDG4)
- 120 kbit/s verified operating capability （vs ADM202JRWZ)
- Verified commercial and temperature positioning （vs ST232CDR)
設計ノート
Design the MAX232DE4 power rail for the verified 4.5 V to 5.5 V single-supply range and keep the charge-pump capacitor connections as close as practical to the device pins. Use a stable, low-impedance supply and verify the external capacitor values and polarity against the manufacturer datasheet. Decouple the supply locally to reduce noise coupled into the RS-232 receiver threshold.
Place the charge-pump capacitors and supply bypass components close to their associated MAX232DE4 pins. Route the two RS-232 driver and receiver nets according to the official pinout, keep the connector-side return path continuous, and avoid sharing narrow ground traces with sensitive analog or switching currents. Confirm the SOIC orientation and pin-1 marking during assembly planning.
Do not select a substitute solely because it is labeled RS-232 or has 16 pins. Verify pin assignments, supply range, charge-pump capacitor topology, receiver thresholds, operating temperature, and data rate against the original design. Also distinguish the verified MAX232DE4 0 C to 70 C range from wider industrial or automotive grades, and add external connector protection for exposed cables.
コンプライアンス情報
The supplied search data does not provide verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements for MAX232DE4. ESD protection exceeding 2,000 V under the cited JESD condition is a device protection specification, not a material-compliance claim.
