USBN9604-28M/NOPB

Controllers Overview

The USBN9604-28M/NOPB is a Universal Serial Bus Full Speed Node Controller compatible with USB Specification versions 1.0 and 1.1. It integrates a high-speed transceiver, a 3.3V regulator, a Serial Interface Engine (SIE), endpoint FIFOs, an 8-bit parallel interface, and a clock generator. The device supports seven endpoint pipes: one bidirectional control endpoint with an 8-byte FIFO and six unidirectional endpoints with 64-byte FIFOs each. It operates on a 24 MHz oscillator with internal 48 MHz clock generation and accepts power supplies between 3V and 5.5V. The component utilizes a 28-pin SOIC package.

Controllers Feature Summary

• Integrated USB transceiver with 3.3V regulator for full-speed node operation
• Enhanced DMA support including automatic data handling and PID toggling
• Versatile 8-bit parallel interface supporting multiplexed and non-multiplexed modes
• Seven dedicated endpoint pipes with configurable interrupt signaling

Controllers Applications

• USB peripheral devices requiring full-speed connectivity
• Portable applications utilizing bus-powered operation
• Systems integrating advanced DMA mechanisms for bulk or isochronous transfers

Controllers Procurement Notes

Verify the specific ordering suffix to confirm the package type and lead-free status. Confirm that the -28M variant corresponds to the standard 28-SOIC package rather than the CSP option. Ensure compatibility with existing design constraints regarding the parallel interface mode selection pins.

Controllers Selection Notes

Select this controller for designs requiring pin-to-pin compatibility with the USBN9602 in a standard SOIC footprint. Evaluate the need for enhanced DMA capabilities versus simpler microcontroller polling methods. Consider the power supply requirements for the integrated 3.3V regulator when designing the external circuitry.

Controllers Part Context

This component belongs to the USBN96 series of USB node controllers manufactured by Texas Instruments, formerly National Semiconductor. It serves as an advanced version of the USBN9602, offering improved DMA features while maintaining functional similarities. The series provides solutions for implementing USB functionality in embedded systems.

Controllers Replacement Considerations

The USBN9604-28M is pin-to-pin compatible with the USBN9602-28M. Verify that any substitute maintains the same 28-SOIC package dimensions and electrical characteristics.