PDI1284P11DGG,112

Specialized Overview

The PDI1284P11 is a 3.3 V parallel interface transceiver and buffer designed for asynchronous, 8-bit bidirectional communication in personal computer systems. It supports IEEE 1284 Byte, Nibble, EPP, and ECP modes, enabling interconnection between 3.3 V and 5.0 V devices. The component features eight transceiver pairs (A/B 1 to 8) controlled by the DIR pin, alongside five cable-side control inputs and six peripheral outputs. Operating conditions specify a supply voltage of 3.0 V to 3.6 V for the host side and 3.0 V to 5.5 V for the cable side. Propagation delays range from 0 to 23 ns depending on direction and load.

Specialized Feature Summary

• IEEE 1284 compliant level 1 and 2 operation supporting multiple transfer modes
• 5 V tolerant B/Y side with selectable totem pole or resistive pull-up outputs
• Integrated ESD protection exceeding 2000 V HBM and 200 V MM standards
• Input hysteresis ensuring low-noise operation at 3.3 V logic levels

Specialized Applications

• Asynchronous 8-bit parallel interfaces for personal computers
• Interfacing 3.3 V hosts with 5.0 V peripherals
• Byte, Nibble, EPP, and ECP mode data transmission

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's current catalog to confirm package type and temperature range. Confirm RoHS compliance status and check for any active obsolescence notices prior to finalizing design-in decisions.

Specialized Selection Notes

Select this component when designing an IEEE 1284 compliant parallel link requiring mixed-voltage translation between 3.3 V and 5.0 V domains. Ensure the application operates within the specified 0 °C to 70 °C ambient temperature range and utilizes the TSSOP48 package constraints.

Specialized Part Context

This device belongs to the PDI1284 family of parallel interface chips manufactured by Nexperia. It serves as a specialized interface solution for legacy PC parallel ports, replacing older discrete transistor arrays or generic buffers with a single integrated circuit optimized for standard protocol timing.

Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Nexperia channels for qualified alternatives if this specific variant becomes unavailable.