PI7C9X760ABLE - 33Mbps I2C/SPI to UART Bridge | Diodes
料号： PI7C9X760ABLE ✗ 停产PI7C9X760ABLE 概述
An I2C/SPI-to-UART bridge controller is an interface IC that connects a host using a clocked serial bus with a peripheral that expects asynchronous UART signaling. It converts command, configuration, and data traffic between the two protocol formats. This bridge-controller category sits within interface ICs, serial-interface controllers, and broader semiconductor solutions for embedded communication.
The PI7C9X760 family supports UART operation at rates up to 33 Mbps and includes as many as eight programmable GPIO pins. Its 64-byte transmit and receive FIFOs help decouple bus activity from the opposite interface, reducing the need for the host processor to service every byte immediately. Low operating and sleeping current make the device especially relevant to handheld and battery-operated equipment.
The 24-TSSOP package provides a practical footprint for compact assemblies while exposing the bridge and GPIO functions on one component. The PI7C9X760ABLE can operate as the principal protocol-conversion interface in systems that otherwise need separate UART and I2C/SPI adaptation. Its architecture can reduce host software complexity by presenting a common bridge-control interface across two common embedded serial buses.
Typical uses include industrial handheld terminals, battery-powered instrumentation, programmable logic controllers, point-of-sale equipment, and accessory or sensor modules. In these applications, a host processor can configure the bridge over I2C or SPI while legacy or specialized downstream equipment communicates through UART. The available GPIO outputs can also support control signals, status indicators, or peripheral enables when the application does not require all eight pins.
PCB design should preserve short, impedance-controlled traces for high-speed serial signals and place bypass capacitors close to the supply pins. Firmware must configure the protocol mode, baud rate, FIFO behavior, and GPIO functions before enabling data transfer. Because both sides of the bridge can operate at different rates, validate timing, buffering, and overflow handling during system integration.
This product page combines the manufacturer's device description with application-focused engineering guidance, package information, sourcing details, and a practical selection framework. It is designed to help engineers evaluate protocol conversion, throughput, FIFO depth, GPIO availability, footprint compatibility, and low-power suitability before committing the bridge controller to an embedded design.
直接替换替代料： PI7C9X760ABLE ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料PI7C9X760ABLE 最大额定值与电气特性
| Product Type | I2C/SPI to single-channel UART bridge controller |
| Maximum Data Rate | 33 Mbps |
| Number of UART Channels | 1 channel |
| Host Interface | I2C-bus or SPI |
| UART Interface | Single-channel UART |
| Programmable GPIO Count | Up to 8 pins |
| Transmit FIFO Depth | 64 bytes |
| Receive FIFO Depth | 64 bytes |
| 封装 | 24-TSSOP |
| 安装类型 | Surface mount |
PI7C9X760ABLE 24-tssop 引脚配置指南
PI7C9X760ABLE（24-tssop 封装）的引脚配置。 该功率器件具有栅极、漏极和源极端子。对于无极性封装，请参阅制造商数据手册以了解确切的引脚 1 方向和封装尺寸细节。常见应用包括电源设计、电机驱动和负载开关。
暂无详细引脚数据： PI7C9X760ABLE.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PI7C9X760ABLE 适用于 6 应用s: Battery-Powered Handheld Terminals, Industrial Handheld Data Collectors, Programmable Logic Controller Serial Expansion, Point-of-Sale and Accessory Peripherals, Battery-Powered Instrumentation, Programmable Sensor and Communication Modules.
Battery-Powered Handheld Terminals
The PI7C9X760ABLE fits handheld terminals that use an I2C- or SPI-based host processor but must communicate with a UART peripheral. Its manufacturer-described low operating and sleeping current support power-conscious portable designs, while 64-byte transmit and receive FIFOs reduce the frequency with which the host must service the bridge. Up to eight programmable GPIO pins can handle control and status functions. The principal trade-off is the need to configure the operating mode, baud rate, FIFO, and GPIO registers correctly for each accessory or peripheral.
Industrial Handheld Data Collectors
Industrial handheld collectors often combine an embedded host with legacy serial equipment through a compact interface bridge. The PI7C9X760ABLE supports I2C/SPI host access and a single UART channel at rates up to 33 Mbps, allowing the same platform to connect to scanners, meters, or local peripherals. Its 24-TSSOP package supports space-constrained assemblies, and the FIFO buffers can smooth short traffic bursts. Engineers should still budget for protocol conversion latency, overflow behavior, and protocol-specific timeout handling in the firmware.
Programmable Logic Controller Serial Expansion
The PI7C9X760ABLE can add UART connectivity to a PLC or embedded controller whose native host bus is I2C or SPI. This is useful when the controller must communicate with a display, modem, sensor, or service interface while avoiding a separate protocol-conversion device. Data rates up to 33 Mbps and 64-byte FIFOs provide a useful performance envelope for burst-oriented traffic, while programmable GPIO can provide peripheral-enable or interrupt-related signals. Pin multiplexing and buffering must be validated against the controller's bus timing.
Point-of-Sale and Accessory Peripherals
Point-of-sale terminals often need a bridge between a compact embedded computer and a UART-based printer, scanner, customer interface, or service connector. The PI7C9X760ABLE places that conversion function in a 24-TSSOP package and adds configurable digital I/O beyond the UART interface. This can simplify the number of dedicated serial adapters in a compact peripheral assembly. Firmware should define timeout, retry, and FIFO-flush behavior so a halted peripheral does not leave stale data or block subsequent transfers.
Battery-Powered Instrumentation
The PI7C9X760ABLE is appropriate for portable measurement equipment that records or transfers data between a sensor-processing subsystem and a UART-based host or radio. Its low operating and sleeping current are relevant to battery life, and the buffered transmit and receive paths can reduce interrupt pressure during short data bursts. The bridge also provides programmable GPIO for functions such as trigger, ready, or enable signaling. A power-budget review should include the bridge's active and sleep current alongside sensor, radio, and display consumption.
Programmable Sensor and Communication Modules
Compact sensor and communication modules can use the PI7C9X760ABLE when the module controller communicates through I2C or SPI but the external interface specification requires UART. The 24-TSSOP footprint supports space-conscious board construction, and the programmable GPIO pins can support module-enable, status, or interrupt signaling. With 64-byte FIFOs in each direction, short local transactions can be buffered efficiently. Integration testing should cover bus contention, flow-control assumptions, reset behavior, and recovery from an interrupted transfer.
工程参考数据： PI7C9X760ABLE ——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 |
|---|---|
| Product Type | I2C/SPI to single-channel UART bridge controller |
| Maximum Data Rate | 33 Mbps |
| UART Channels | 1 channel |
| Transmit FIFO | 64 bytes |
| Receive FIFO | 64 bytes |
| Programmable GPIO | Up to 8 pins |
| Package | 24-TSSOP |
| Brand | Diodes Incorporated |
关键差异点
- Combines protocol conversion and programmable digital I/O （对比 A dedicated UART transceiver)
- Supports high-speed single-channel UART transfer （对比 A low-speed software UART implementation)
- Uses bidirectional buffering in both transfer directions （对比 A single FIFO UART bridge)
设计说明
Route the host-side I2C or SPI interface and the UART signals as short, continuous traces on the PCB. Place the required bypass capacitors immediately adjacent to the device's supply and ground pins, and route high-speed return paths without intervening plane splits. The manufacturer datasheet's pin-description table and application circuit should be used to assign the 24-TSSOP connections and determine whether additional series resistance or controlled-impedance routing is required.
Calculate the bridge's contribution to both active and sleep current using the manufacturer's electrical characteristics for the actual operating voltage and temperature. Confirm that the host keeps the device in its intended low-power state when no UART transfer is active. Also account for pull-up currents on the host bus separately, because those loads can dominate a low-power design even when the bridge controller itself has a low sleeping current.
Do not assume that the maximum UART data-rate capability is the usable application throughput. The selected I2C or SPI clock, baud-rate divider, header structure, FIFO depth, host interrupt latency, and peripheral response time can all reduce performance. Establish reset, timeout, retry, and FIFO-flush procedures in firmware so an interrupted transaction cannot leave stale bytes or create a persistent blockage.
Validate the host-bus and UART edges at the intended operating rate using the final PCB, cables, connectors, and peripheral. Begin with the manufacturer's recommended configuration and then measure rise time, ringing, overshoot, and receiver margin. A clean logic analyzer result at the controller pin does not guarantee compliance at the connector, so test the complete signal path and verify ground reference continuity between communicating assemblies.
合规信息
Compliance status is not stated in the manufacturer description or distributor records for this exact orderable MPN. Verify the declarations and material documentation for the selected part before environmental or automotive qualification.
