PI7C9X752FAE

Controllers Overview

The PI7C9X752FAE is a dual Universal Asynchronous Receiver and Transmitter (UART) manufactured by Diodes Incorporated. It operates within a supply voltage range of 1.62V to 3.6V and features 5V tolerant serial inputs. Each UART channel includes a 16C550 compatible register set, 64-byte transmit FIFOs, and 64-byte receive FIFOs. The device supports Intel or Motorola bus interfaces, automatic RTS/CTS hardware flow control, Xon/Xoff software flow control, and RS-485 half-duplex direction control. It accommodates data rates up to 16 Mbps with a 64MHz external clock input and integrates an infrared encoder/decoder compliant with IrDA 1.0/1.1 standards. The component is housed in a 48-TQFP package.

Controllers Feature Summary

• Dual independent UART channels with 16C550 compatible configuration registers
• Integrated 64-byte transmit and receive FIFOs per channel with programmable trigger levels
• Support for Intel and Motorola host bus interfaces with automatic wake-up from sleep mode
• Built-in infrared encoder/decoder supporting IrDA 1.0 and 1.1 protocols

Controllers Applications

• Remote Access Servers
• Ethernet Network to Serial Ports
• Network Management Systems
• Factory Automation and Process Control
• Multi-port RS-232/RS-422/RS-485 Interface Cards

Controllers Procurement Notes

Verify the specific ordering suffix 'AE' against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure compatibility with the required host interface protocol, either Intel or Motorola mode, as selected by the 16/68# pin. Confirm that the system power supply remains within the 1.62V to 3.6V operating range to guarantee proper functionality.

Controllers Selection Notes

Select this component when a dual-channel UART solution with integrated FIFOs is required for high-bandwidth communication systems. Consider the 48-TQFP package constraints and the need for 5V tolerant inputs if interfacing with legacy serial devices. Evaluate the requirement for infrared communication capabilities, as the device includes dedicated IrDA encoding and decoding logic without external components.

Controllers Part Context

The PI7C9X752 belongs to the PI7C9X75x family of high-performance UARTs from Diodes Incorporated. This series is designed to replace standard 16C550 UARTs by providing larger FIFO buffers and additional features like hardware flow control and infrared support. The FAE suffix typically denotes a specific tape and reel packaging option for automated assembly, distinct from tray-packaged variants.

Controllers Replacement Considerations

Direct replacements include other members of the PI7C9X75x family, such as the PI7C9X752FCE, which offers similar functionality but may differ in packaging or environmental specifications. Verify pinout compatibility and register set equivalence before substitution.