PDI1284P11DL,118

Specialized Overview

The PDI1284P11 is a 3.3 V parallel interface transceiver and buffer designed for asynchronous, 8-bit bidirectional communication compliant with IEEE 1284 specifications. It supports Byte, Nibble, EPP, and ECP modes, enabling interconnection between 3.3 V and 5.0 V devices. The device integrates eight transceiver pairs (A/B 1 to 8) and additional control lines. Operating conditions specify a supply voltage of 3.0 V to 3.6 V for the main logic and 3.0 V to 5.5 V for the cable side. Static characteristics include input hysteresis of up to 0.8 V at 3.3 V and low leakage currents. Dynamic performance features propagation delays ranging from 0 ns to 23 ns depending on direction and load.

Specialized Feature Summary

• Supports IEEE 1284 Byte, Nibble, EPP, and ECP modes for versatile parallel interface applications
• Provides 5 V tolerance on B/Y side inputs and outputs for mixed-voltage system compatibility
• Offers configurable output drive styles including totem pole and resistive pull-up options via the HD pin
• Includes robust ESD protection exceeding 2000 V HBM and latch-up protection exceeding 500 mA

Specialized Applications

• Asynchronous 8-bit parallel interfaces for personal computers
• Interfacing hosts or peripherals operating at different voltage levels (3.3 V and 5.0 V)
• IEEE 1284 compliant level 1 and 2 parallel port implementations

Specialized Procurement Notes

Verify the specific package variant during procurement as the datasheet revision history indicates that the SSOP48 version (PDI1284P11DL) was removed in Rev 4. Ensure the ordered component matches the TSSOP48 package (SOT362-1) currently specified. Confirm temperature range requirements align with the 0 °C to 70 °C operational limit defined for this product data sheet.

Specialized Selection Notes

Select this component when designing systems requiring bidirectional 8-bit parallel data transfer between 3.3 V and 5.0 V domains. It is suitable for applications needing IEEE 1284 compliance without external logic. Consider the available output drive configurations; use the HD pin to enable resistive pull-ups if required by the cable side specification. Ensure the design accommodates the specified input hysteresis and voltage thresholds for reliable signal integrity.

Specialized Part Context

This device belongs to Nexperia's specialized interface IC portfolio, specifically engineered for legacy and industrial parallel communication standards. It serves as a bridge between modern low-voltage logic and traditional 5 V parallel peripherals. The PDI1284 series is widely recognized for its role in printer ports and older computer bus architectures, providing a standardized solution for data transmission across voltage boundaries.

Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not identified in the provided documentation. Designers should verify compatibility with existing circuit layouts, particularly regarding pin assignments and voltage tolerances, when considering alternative vendors or updated revisions.