TP3465V/NOPB

Specialized Overview

The TP3465V/NOPB is a MICROWIRE Interface Device (MID) manufactured by Texas Instruments, housed in a 28-pin PLCC package. It enables microprocessors to communicate with up to eight peripheral devices via the serial MICROWIRE interface. The device supports both multiplexed and non-multiplexed bus formats compatible with National/Intel and Motorola architectures. It features a programmable clock divider for MICROWIRE clock speeds up to 5 MHz derived from a master clock input of up to 20 MHz. Operating as a bus master or slave, it maps peripherals to memory locations using six control registers and two data registers.

Specialized Feature Summary

• Supports multiplexed and non-multiplexed microprocessor bus interfaces compatible with National/Intel and Motorola formats
• Provides hardware-assisted chip select generation for up to eight MICROWIRE peripherals
• Configurable as a MICROWIRE bus master or slave with programmable clock polarity and mode settings
• Includes dedicated registers for pin definition, clock rate division, and status monitoring

Specialized Applications

• ISDN terminal adapters interfacing with ISDN components and non-ISDN peripherals
• Digital and analog linecards utilizing COMBO devices or serial EEPROMs
• Interfacing industry standard serial EEPROMs and LCD drivers to microprocessors
• Master and slave inter-processor communication over the MICROWIRE bus

Specialized Procurement Notes

Verify the component origin and authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific ordering suffix matches the required package type and temperature range specifications. Review the datasheet for any updates regarding pin configurations or electrical characteristics prior to integration into the design.

Specialized Selection Notes

Select this device when interfacing parallel buses to serial MICROWIRE peripherals requiring up to eight chip selects. Ensure the host processor supports either multiplexed or non-multiplexed address/data bus structures. Verify that the system clock frequency allows for the required MICROWIRE baud rates using the internal divider. Consider the 28-pin PLCC package constraints for PCB layout.

Specialized Part Context

This component belongs to the MICROWIRE Interface Device family designed to bridge parallel microprocessor buses with serial peripheral interfaces. It simplifies system architecture by handling serialization protocols and chip selection automatically. The device is part of legacy interface solutions for telecommunications and embedded systems requiring efficient peripheral management.

Specialized Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.