PI7C9X762CLEX - I2C/SPI to UART Bridge | Diodes Incorporated
部品番号: PI7C9X762CLEX ✓ 生産中PI7C9X762CLEX 概要
An I2C bridge controller is an interface IC that connects serial protocols whose electrical and transaction formats differ. In this case, the PI7C9X762CLEX is positioned as an I2C/SPI-to-UART bridge rather than a general-purpose microcontroller or standalone UART transceiver. Such devices are useful when one subsystem communicates through I2C or SPI while another expects serial UART traffic, helping designers avoid implementing a complex protocol-conversion layer in host firmware.
The principal verified features are the combined I2C/SPI-to-UART function, UART interface classification, and 28-pin TSSOP package. The PI7C9X762CLEX is available in a tape-and-reel production format, and the manufacturer part-number listing confirms it as the X ordering variant. Detailed operating voltage, clock limits, UART data-rate range, I2C rates, SPI rates, and logic-level specifications require confirmation in the manufacturer datasheet before a circuit is finalized.
Protocol-bridge designs normally depend on consistent command formats, electrical levels, timing margins, and deterministic reset behavior. The PI7C9X762CLEX should therefore be evaluated as part of a complete host-to-target interface chain rather than only by its bridge description. Designers should confirm which side of the device is intended to originate transactions, how register access is implemented across each supported protocol, and whether the available serial rates satisfy the latency and bandwidth needs of the target equipment.
Typical uses include industrial control modules, serial protocol adapters, embedded instrumentation, automated test equipment, and communication subsystems that need I2C or SPI connectivity presented through a UART-oriented controller interface. It may also be used in legacy equipment where an established UART backbone must accommodate a modern serial peripheral without changing the external connector architecture.
Before layout, verify the complete pin assignment, power rails, ground requirements, and decoupling recommendations in the manufacturer datasheet. Keep high-speed or exposed serial traces short, provide a continuous ground reference, and follow the device's recommended input and output arrangements. Confirm logic thresholds against every connected host before committing the PCB layout.
This page consolidates the exact ordering information, package and packaging facts, protocol-interface identity, sourcing details, pin-compatible ordering option, and application guidance for PI7C9X762CLEX. It also highlights the parameter fields that engineers should verify in the manufacturer datasheet, helping accelerate component selection and design review.
ドロップイン代替品: PI7C9X762CLEX — 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: PI7C9X762CLEX （同一形状・フットプリント） — 相違点: Device Type.
PI7C9X762CLE
✅ ドロップイン価格はお問い合わせください
データシートを見る →PI7C9X762CLEX 最大定格＆電気的特性
| Device Type | I2C/SPI to UART bridge controller |
| Product Classification | UART interface IC |
| Interface Function | I2C/SPI to UART protocol conversion |
| Package Type | TSSOP-28 |
| Total Pin Count | 28 pins |
| 実装タイプ | Surface mount |
| Shipping Format | Tape and reel |
| Standard Reel Quantity | 3,000 units |
| Manufacturer | Diodes Incorporated |
PI7C9X762CLEX tssop-28 ピン配置ガイド
PI7C9X762CLEX (tssop-28 パッケージ) のピン配置。 このパワーデバイスは、ゲート、ドレイン、ソース端子を備えています。非極性パッケージの場合、正確なピン1の向きとフットプリントの詳細については、メーカーのデータシートを参照してください。主な用途には、電源設計、モータ駆動、負荷スイッチングがあります。
詳細なピン配置データはありません: PI7C9X762CLEX.
詳細は データシート をご参照ください。
主な用途
PI7C9X762CLEX の用途: 6 件s: Industrial Serial Protocol Adapter, Embedded Test and Measurement Equipment, Legacy UART Communication Module, Automated Handling Controller, Serial Communication Gateway, Compact Sensor and Actuator Node.
Industrial Serial Protocol Adapter
The PI7C9X762CLEX fits an industrial adapter that must expose an I2C or SPI peripheral through a UART-oriented host interface. Its 28-pin TSSOP package limits board area while retaining separate protocol connections for the embedded peripheral and serial controller. The key engineering checks are the supported UART rate, I2C and SPI timing, supply voltage, and logic levels for the connected equipment. Because a bridge can reduce host-side protocol handling, it is useful when the controller already communicates through UART but the new peripheral uses I2C or SPI. Confirm reset behavior and command latency against the control system before production release.
Embedded Test and Measurement Equipment
The PI7C9X762CLEX can serve as the interface controller in test and measurement equipment that combines a UART-based operator or instrument port with an I2C or SPI measurement peripheral. The bridge function avoids assigning additional direct bus pins to the main controller, while the 28-pin TSSOP package remains practical for compact instrument electronics. Design around the exact serial bandwidth required by captures, configuration transfers, and status polling. Verify clock tolerances, bus pull-up requirements, isolation strategy, and electrical thresholds before placing the controller next to sensitive analog or high-voltage sections.
Legacy UART Communication Module
PI7C9X762CLEX is appropriate when an established UART communication backbone needs to accommodate a newer I2C or SPI peripheral. The device can act as the protocol-conversion point without changing the existing external UART connector or host firmware structure. This approach is especially useful for field-upgradeable equipment where the external communication architecture must remain stable. Engineers should confirm that the bridge supports the required command framing, timeout behavior, baud rate, and burst-transfer characteristics. Check the manufacturer documentation for reset states and any configuration registers that must be initialized after power-on.
Automated Handling Controller
The PI7C9X762CLEX can support an automated handling system in which a UART command processor coordinates sensors or actuators connected through I2C or SPI. By concentrating mixed serial traffic through a dedicated bridge controller, the main processor can avoid dedicating communication resources to each peripheral bus. The 28-pin TSSOP package is suitable for compact controller boards, although routing must preserve signal integrity across both protocol domains. Validate the required update rate, command latency, fault recovery, and bus contention behavior. Any motor or high-power actuator interface should remain electrically isolated from the low-voltage bridge circuitry.
Serial Communication Gateway
The PI7C9X762CLEX fits a communication gateway designed to combine a UART uplink with I2C or SPI local devices. The gateway can translate between the controller-facing protocol and the local peripheral protocol while maintaining a compact physical design. This application is useful for data acquisition, building controls, and remote monitoring nodes where the upstream processor has a single UART interface but downstream sensors require a different bus. Validate throughput, latency, error detection, and recovery behavior against the gateway workload. Confirm whether additional line drivers, level shifters, or galvanic isolation are required by the external interfaces.
Compact Sensor and Actuator Node
PI7C9X762CLEX can be integrated into a compact sensor or actuator node that accepts configuration from a UART controller and communicates with local I2C or SPI devices. The mixed-interface function helps consolidate several peripheral types behind one controller-oriented connection while preserving the small 28-pin TSSOP footprint. For battery-powered systems, verify sleep behavior, operating current, and whether the bridge remains active between transactions. Establish clear fault handling for disconnected sensors, bus stuck conditions, and invalid commands so the node can recover without disrupting the rest of the equipment.
エンジニアリング参考データ: PI7C9X762CLEX — 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 | PI7C9X762CLE |
|---|---|---|
| Package | TSSOP-28 | TSSOP-28 - same |
| Brand | Diodes Incorporated | Diodes Incorporated |
| Device Type | I2C bridge controller | I2C bridge controller |
| Interface Function | I2C/SPI to UART | I2C/SPI to UART |
| Category | UART interface IC / SPI bridge | UART interface IC / SPI bridge |
| Pin Count | 28 pins | 28 pins |
主な差別化要因
- Combined I2C/SPI-to-UART bridge in a compact package （vs PI7C9X762CLE)
- Exact production packaging distinction （vs PI7C9X762CLE)
- Direct interchangeability within the same manufacturer family （vs PI7C9X762CLE)
設計ノート
Use the manufacturer pin-description table for the 28-pin TSSOP footprint and preserve the package drawing, pin-1 orientation, and exposed-pad requirements. Place required input and output capacitors close to their associated device pins, provide a low-impedance ground reference, and avoid routing communication traces next to switching nodes or high-current actuator outputs. Verify land-pattern dimensions against the latest package drawing before releasing artwork.
Treat I2C, SPI, and UART connections as separate protocol domains with their own timing and termination requirements. Confirm pull-up values and maximum bus capacitance from the manufacturer specifications, keep SPI clock and data routes short, and provide a continuous return path beneath high-speed signals. If UART levels come from another integrated circuit, verify that both devices use compatible voltage thresholds and signal conventions before production.
Do not approve a PI7C9X762CLEX or PI7C9X762CLE substitution based only on the shared TSSOP-28 package. Compare power inputs, ground pins, UART signals, I2C and SPI pins, configuration pins, reset behavior, and maximum electrical ratings in the manufacturer pin and electrical-characteristics tables. A correct package outline does not guarantee that every protocol connection or operating limit is identical.
Identify all supply rails, operating voltage, quiescent current, and peak current requirements from the manufacturer datasheet before designing the power tree. Use the recommended bypass capacitance and place it directly between the relevant supply and ground pins. Account for voltage-level translators, isolated power domains, and load-switch transients separately so that bridge startup or UART activity does not create unacceptable rail disturbance.
コンプライアンス情報
No specific RoHS, REACH, halogen-free, lead-free, or conflict-minerals statements appear in the part listings. Automotive qualification is not applicable to the listed product information.
