SP232ECP-L - RS-232 Transceiver, 5V, +/-15kV ESD | MaxLinear
料号： SP232ECP-L ✓ 量产中SP232ECP-L 概述
An RS-232 transceiver is an interface IC that converts logic-level digital signals into RS-232 line levels and converts incoming RS-232 signals back into CMOS-compatible logic. In the broader electronics hierarchy, the SP232ECP-L belongs to the RS-232 interface family, which is part of interface ICs and serial communication semiconductors. The integrated charge pump generates the positive and negative voltage swings required by RS-232 without requiring a separate bipolar supply. This makes the device useful where the system already has a 5 V rail and only a serial communications port is needed.
Key features include operation from a single +5 V supply, two RS-232 drivers, two RS-232 receivers, compatibility with RS-232-D and ITU V.28 protocols, and improved ESD tolerance exceeding +/-15 kV for the human-body model. The wide specified operating-temperature range of 0 C to 70 C supports commercial equipment. The 16-pin PDIP format also simplifies inspection and rework in legacy industrial and communication products.
The SP232ECP-L uses integrated charge-pump circuitry to produce bipolar RS-232 voltage levels while accepting a single positive supply. Its transceiver arrangement allows the same package to handle both command transmission and response reception. Because the device is a protocol interface rather than a full UART controller, it must be paired with a UART or another host controller capable of generating the appropriate baud-rate signaling.
Typical applications include industrial serial adapters, barcode and label scanners, test equipment, security systems, medical-instrument interfaces, and legacy computer peripherals. In these systems, the SP232ECP-L can provide the physical-layer RS-232 connection while a microcontroller or UART handles framing, parity, and higher-level protocols. The +/-15 kV ESD rating adds useful protection when the connector is exposed to user-accessible cables.
Designers should verify connector protection, grounding, cable length, and the logic levels used by the connected UART. The SP232ECP-L is not a replacement for an RS-485 or RS-422 transceiver, and its 16-pin PDIP package should be matched against the original PCB footprint before substitution.
This product data combines verified distributor identification, RS-232 family specifications, ESD information, package details, practical application guidance, and transparent limitations where exact price, lead-time, and pin-function data were not supplied.
直接替换替代料： SP232ECP-L ——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： SP232ECP-L （相同外形与封装尺寸） ——差异在于 Package, Product Type, Protocol Compatibility, Mounting Type, Driver Count.
SP232ECN-L
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →SP232ECT-L/TR
✅ 直接替换联系询价
查看数据手册 →SP232ECP
✅ 直接替换📋 参考替代料（不在目录中）
SP232EEP-L
✅ 直接替换联系询价
查看数据手册 →SP232ECP-L 规格参数
| Product Type | RS-232 line driver and receiver interface IC |
| Transceiver Configuration | 2/2 full RS-232 |
| Number of Drivers | 2 |
| Number of Receivers | 2 |
| 电源电压 | +5 V single supply |
| ESD Tolerance | +/-15 kV human-body model |
| 工作温度 | 0 C to 70 C |
| Protocol Compatibility | RS-232-D and ITU V.28 |
| Voltage Conversion | Integrated charge pump |
| 封装 | 16-pin PDIP |
| 安装类型 | Through-hole |
| 接口类型 | Serial transceiver |
SP232ECP-L 16-pin pdip 引脚配置指南
SP232ECP-L（16-pin pdip 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： SP232ECP-L.
请参阅 数据手册 以查看完整引脚配置。
典型应用
SP232ECP-L 适用于 6 应用s: Industrial serial control, Barcode and label scanners, Test and measurement instrumentation, Embedded service interfaces, Security and access systems, Legacy computer peripherals.
Industrial serial control
The SP232ECP-L fits industrial control equipment that needs a legacy RS-232 port while the controller operates from a 5 V rail. Its 2/2 transceiver arrangement supports two outgoing control or status signals and two incoming responses in the same 16-pin PDIP footprint. The integrated charge pump supplies the required RS-232 voltage levels, while the specified +/-15 kV human-body-model ESD tolerance helps protect a user-accessible connector. The 0 C to 70 C rating is appropriate for many commercial indoor systems, but it should be checked against the enclosure temperature. A UART remains responsible for baud rate, framing, parity, and protocol handling.
推荐
Barcode and label scanners
The SP232ECP-L can provide the physical RS-232 connection for barcode scanners, label printers, and other point-of-sale peripherals that use legacy serial protocols. Two driver and two receiver channels allow command transmission and acknowledgement data on one compact interface. Operating from a single +5 V supply simplifies integration into scanners and terminal electronics that do not provide a bipolar RS-232 rail. The +/-15 kV human-body-model ESD rating is useful when the cable is exposed to charged user contact. Designers should still confirm connector grounding, logic polarity, and the peripheral's supported baud rate before production use.
推荐
Test and measurement instrumentation
The SP232ECP-L is appropriate for legacy test equipment and measurement instruments that communicate with a host PC through an RS-232 port. The single +5 V supply is convenient for compact bench instruments, while the integrated charge pump eliminates the need for an external negative voltage generator. The 16-pin PDIP package is useful when maintaining older professional equipment. Its 0 C to 70 C specification covers typical indoor laboratory conditions. Engineers must verify isolation requirements, ground-loop behavior, and maximum cable length because the provided data does not specify receiver thresholds, slew rates, or isolation performance.
推荐
Embedded service interfaces
The SP232ECP-L can add a service or configuration port to embedded industrial equipment that has 5 V power but no native RS-232 connector. Its 2/2 channel arrangement supports diagnostic commands in one direction and telemetry or acknowledgements in the other. The DIP package is especially practical for legacy controller boards where a through-hole footprint already exists and a compact SMD redesign would be disruptive. The integrated charge pump reduces external circuitry, while the stated +/-15 kV human-body-model ESD tolerance helps manage electrostatic exposure at an accessible service connector. Firmware engineers should implement timeout and framing behavior appropriate to the peripheral protocol.
推荐
Security and access systems
The SP232ECP-L can support RS-232 connections in access-control readers, alarm panels, and legacy security equipment that uses a 5 V control board. The two transmitters and two receivers permit bidirectional command and status communication, which is common in access-control systems. Its enhanced +/-15 kV human-body-model ESD tolerance provides a useful level of connector protection when cables are repeatedly connected by installers or users. The device itself is not an isolated interface, so cabinet grounding and potential differences between connected equipment must be evaluated. Its 0 C to 70 C commercial temperature range also requires consideration in outdoor or unconditioned installations.
推荐
Legacy computer peripherals
The SP232ECP-L is suited to maintaining legacy computer peripherals, service adapters, and industrial data-collection equipment that still uses RS-232. Its 16-pin PDIP package allows straightforward use in older through-hole designs, and the single +5 V supply is compatible with many established controller boards. The 2/2 transceiver arrangement supports both control outputs and status inputs without requiring separate driver and receiver packages. The specified +/-15 kV human-body-model ESD tolerance is valuable in desktop and laboratory environments where cables are frequently handled. Before replacing an existing IC, confirm that shutdown, enable, supply, and receiver-threshold behavior are identical in the relevant datasheet revision.
推荐
推荐产品汇总
工程参考数据： SP232ECP-L ——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 | SP232E | SP232ECT | SP232ECP | SP232EEP-L |
|---|---|---|---|---|---|
| Package | 16-pin PDIP | 16-pin PDIP family package | 16-pin PDIP family package | 16-pin PDIP family package | 16-pin PDIP family package |
| Brand | MaxLinear | MaxLinear | MaxLinear | MaxLinear | MaxLinear |
| Transceiver Configuration | 2/2 full RS-232 | SP232E family 2/2 RS-232 | SP232E family RS-232 transceiver | RS-232 driver/receiver interface | SP232E family RS-232 transceiver |
| Supply Voltage | +5 V single supply | +5 V single supply | +5 V family supply | +5 V single supply | +5 V family supply |
| Protocol Support | RS-232-D and ITU V.28 | RS-232 and ITU V.28 | SP232E family RS-232/V.28 | RS-232 and ITU V.28 family | SP232E family RS-232/V.28 |
| Voltage Conversion | Integrated charge pump | Integrated charge pump | Integrated charge pump | Integrated charge pump | Integrated charge pump |
关键差异点
- Enhanced ESD capability （对比 SP232ECT)
- Single +5 V operation with integrated charge pump （对比 SP232EEP-L)
- Catalog availability from two major distributors （对比 SP232E)
- Commercial temperature specification （对比 SP232ECP)
设计说明
Use the manufacturer pinout and footprint drawings before replacing SP232ECP-L in an existing board. The verified data confirms a 16-pin PDIP format, but it does not provide the individual pin names or exact dimensions. Confirm pin-1 orientation, package row spacing, and any exposed board-level differences before inserting the replacement. Keep the transceiver close to the connector so transient energy is not coupled into unrelated logic.
The SP232ECP-L uses a single +5 V supply and an integrated charge pump to create the bipolar RS-232 signal levels. Place the device-side bypass capacitor close to its supply and ground pins according to the manufacturer application circuit, and keep the charge-pump return current within the intended ground path. The supplied data does not state the recommended capacitor values or charge-pump switching details, so those values must be obtained from the manufacturer datasheet.
Do not assume that every SP232E suffix is automatically interchangeable. The supplied cross-reference results show related SP232E-family parts, but they do not provide complete electrical and pin-function tables for each suffix. Before substitution, compare supply voltage, receiver thresholds, enable or shutdown behavior, temperature grade, ESD rating, and PDIP pinout. Also verify that the connected UART logic levels and signal polarities are compatible.
RS-232 driver outputs are relatively slow compared with many modern digital interfaces, but they can still radiate noise when the cable is long or poorly terminated. Route driver and receiver traces away from sensitive analog and clock networks, return the cable shield to chassis ground according to the equipment architecture, and avoid long unprotected stubs. If the connector is user accessible, retain the specified +/-15 kV human-body-model ESD capability and follow the manufacturer protection-circuit guidance.
合规信息
No explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals statements were present in the supplied verified web data. AEC-Q100 is treated as not applicable because SP232ECP-L is specified for a 0 C to 70 C commercial temperature range and is not identified as an automotive-qualified variant.