PI7C9X752FAEX Dual UART with 64-Byte FIFO | Diodes
MPN: PI7C9X752FAEX ✓ فعالPI7C9X752FAEX نمای کلی
A UART, or universal asynchronous receiver/transmitter, is an interface controller that converts parallel data from a processor into serial information and receives serial data in parallel form. Within the hierarchy of interface ICs, a dual UART controller sits between a host processor and external communication equipment. Its FIFO buffers help decouple short data bursts from host interrupts, while IrDA support provides compatibility with infrared communication links and the RS-485 controller function supports balanced differential communication designs.
The PI7C9X752FAEX operates from 1.62 V through 3.6 V, making it appropriate for low-voltage embedded systems. Each UART has a 64-byte FIFO according to the device description. The 48-TQFP package provides a substantial pin count for two channels, external interface connections, control signals, and power connections, while its 7 mm by 7 mm body accommodates high-density PCB layouts without using a very large package.
The device combines two UART channels in one package, reducing the component count and board area required for dual-port serial communication. A host processor can use the controller for console management, data acquisition, peripheral connectivity, industrial equipment, and embedded control systems. Its low-voltage range is compatible with contemporary 3.3 V digital systems, although systems operating below 1.62 V require suitable level translation or a different interface controller.
PI7C9X752FAEX is suited to applications involving two serial ports, including industrial control panels, RS-485 equipment, infrared data links, test systems, and embedded communications modules. When implementing an RS-485 network, the controller's logic interface should be paired with an appropriate external transceiver because the integrated RS-485 controller function does not replace the isolation, drive, and receive functions of a physical transceiver.
PCB design should provide a low-impedance ground plane, short supply connections, and decoupling close to the device. Confirm the manufacturer's pin-description table and recommended external-component network before routing the serial signals. Correct signal-level conversion, termination, grounding, and transceiver selection are essential for dependable communication over longer cables or noisy industrial environments.
This product summary combines the manufacturer-listed electrical attributes, package information, interface capabilities, and application-oriented design guidance. It also distinguishes the PI7C9X752FAEX from similar UART devices that use a different package or lack equivalent IrDA and RS-485 controller functions, helping engineers assess PCB compatibility before committing to a replacement.
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درخواست جایگزینPI7C9X752FAEX حداکثر مقادیر مجاز و مشخصات الکتریکی
| Device Type | Dual UART controller |
| Operating Supply Voltage Range | 1.62 V to 3.6 V |
| Number of UART Channels | 2 |
| FIFO Capacity | 64 bytes per UART |
| IrDA Support | IrDA 1.1 |
| RS-485 Controller Support | Yes |
| UART Interface | Dual UART |
| Package Type | 48-pin TQFP |
| Package Dimensions | 7 mm x 7 mm |
| نوع نصب | Surface Mount |
| تعداد پایه | 48 pins |
| Manufacturer | Diodes Incorporated |
| Product Description | High-performance dual UART with 64-byte FIFO |
راهنمای پیکربندی پین PI7C9X752FAEX 7 mm x 7 mm
پیکربندی پین برای PI7C9X752FAEX (پکیج 7 mm x 7 mm). این قطعه قدرت دارای پایانه‌های گیت، درین و سورس است. برای پکیج‌های غیرقطبی، برای جهت دقیق پین ۱ و جزئیات فوت‌پرینت به دیتاشیت سازنده مراجعه کنید. کاربردهای رایج شامل طراحی منبع تغذیه، درایو موتور و سوئیچینگ بار است.
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کاربردهای معمول
PI7C9X752FAEX مناسب است برای 6 کاربردs: Industrial RS-485 Controller, Dual-Port Embedded Console, IrDA Infrared Data Link, Data-Acquisition and Test Equipment, Network Appliance Management Interface, Serial Interface Concentrator.
Industrial RS-485 Controller
The PI7C9X752FAEX is suitable for an embedded industrial controller that manages two serial channels while its RS-485 controller function supports a differential bus. The 1.62 V to 3.6 V operating range accommodates low-voltage control logic, and the two 64-byte FIFO channels can absorb short transmit bursts before the host processes them. In implementation, connect the controller logic to an appropriate external RS-485 transceiver rather than driving the bus directly. Confirm transceiver direction-control, driver-enable, termination, and grounding requirements against the system topology. The 48-TQFP package provides the connections needed for dual-channel communications, while the compact 7 mm by 7 mm body reduces the area occupied by the serial subsystem.
پیشنهادی
Dual-Port Embedded Console
The PI7C9X752FAEX fits an embedded controller that must expose more than one asynchronous serial port, such as a service console and an external diagnostic channel. Two independent UART channels within one 48-TQFP device simplify the hardware allocation compared with two separate controllers. The 64-byte FIFO helps bridge short traffic bursts, while the 1.62 V to 3.6 V range supports compatible low-voltage processors and peripherals. Connect the appropriate signal levels directly to the target devices or add level translators when their logic thresholds differ. Route both channels according to the manufacturer's pin-description table, provide local bypass capacitance, and keep serial traces away from clocks and high-current switching nodes to reduce coupling.
پیشنهادی
IrDA Infrared Data Link
The PI7C9X752FAEX is appropriate for an embedded system requiring an IrDA 1.1 serial link alongside a second UART channel. Its IrDA capability reduces the controller workload associated with infrared-compatible asynchronous signaling, while the second channel remains available for console, sensor, or peripheral traffic. The 1.62 V to 3.6 V supply range permits operation from compatible low-voltage rails. In the circuit, use the manufacturer's recommended infrared interface network and account for optical-module drive, receiver, and signal-integrity requirements rather than treating IrDA as a direct cable interface. The 64-byte FIFO helps isolate short data exchanges from the host processor, and the 48-pin package consolidates the dual-channel interface on a 7 mm by 7 mm footprint.
پیشنهادی
Data-Acquisition and Test Equipment
The PI7C9X752FAEX can support data-acquisition and test systems that require multiple serial endpoints for sensors, instruments, or laboratory fixtures. The dual-channel architecture and two 64-byte FIFOs allow the host processor to manage short command and response sequences while keeping communication work off the main control loop. Its 1.62 V to 3.6 V operating range fits low-voltage instrumentation signal chains when appropriate level translation is used. Place the UART connections near their associated interface circuitry and maintain a low-impedance ground return to reduce noise. For bench or industrial equipment, add transient protection and use an external transceiver for any RS-485 physical layer. Confirm clock, reset, and termination details in the manufacturer application information before release.
پیشنهادی
Network Appliance Management Interface
The PI7C9X752FAEX is a candidate for a network appliance that needs separate control and diagnostic serial channels. One UART can support configuration or monitoring functions while the second handles a local service connection, reducing the need for separate controller packages. The device's 64-byte FIFO buffers and dual-channel architecture are useful for administrative commands and short log transfers. Its 48-TQFP package supports the required signal count on a compact board, and the 1.62 V to 3.6 V supply range is compatible with modern 3.3 V systems. Use the manufacturer's pin description to maintain pin-to-pin consistency during layout, and isolate external connectors with suitable protection where cables leave the enclosure. Avoid routing the two channels beneath high-speed or switching-power nodes.
پیشنهادی
Serial Interface Concentrator
The PI7C9X752FAEX works as a serial-interface concentrator when a compact controller must gather information from two asynchronous peripherals. The integrated 64-byte FIFO for each channel allows short messages to be queued while the host handles other tasks, and the 1.62 V to 3.6 V range supports low-voltage embedded systems. The 48-TQFP package consolidates both ports into a 7 mm by 7 mm footprint, useful in control cards and communication modules. Choose external transceivers whenever the connected interface requires RS-232 or RS-485 physical signaling. Keep clock routing short, place bypass capacitance at the supply pins, and use a continuous ground plane beneath the device. Review the manufacturer's external-component recommendations and timing requirements before finalizing the firmware and board layout.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PI7C9X752FAEX — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | 48-pin TQFP (7 mm x 7 mm) |
| Product Type | Dual UART controller |
| Number of UART Channels | 2 |
| Operating Voltage Range | 1.62 V to 3.6 V |
| FIFO Capacity | 64 bytes |
| IrDA Support | IrDA 1.1 |
| RS-485 Controller Function | Yes |
یادداشت‌های طراحی
Place the supply-bypass network at the PI7C9X752FAEX power pins and maintain a continuous ground plane beneath the device. Route the two UART channels away from switching nodes, inductors, and high-current return paths. Confirm every connection against the manufacturer's pin-description table, particularly clock, interrupt, modem-control, and RS-485-related signals, before releasing the PCB.
Do not treat the integrated RS-485 controller function as a complete physical RS-485 transceiver. Use an external transceiver for bus drive, receive, and isolation where required. Also verify the external clock network and FIFO-related host interface settings; changing voltage thresholds or transceiver types can alter timing and signal compatibility even when the UART logic remains functionally similar.
Keep the 1.62 V to 3.6 V supply within its specified operating range and account for voltage tolerance at the highest system rail. Use short traces for the reference-clock network and provide local return paths for both UART channels. Where a port leaves the board, use the appropriate RS-232 or RS-485 transceiver, apply connector-side protection, and keep chassis or cable ground handling separate from sensitive signal returns.
اطلاعات انطباق
No explicit compliance statements are identified in the manufacturer listing or distributor product information. A manufacturer declaration should be reviewed for the exact order code before environmental or automotive qualification is claimed.
