74LVC1284PW,118

Overview

The NXP USA Inc. 74LVC1284PW,118 is a 3.3V parallel printer interface transceiver and buffer designed for asynchronous, 4-bit bi-directional data transmission between personal computers and peripherals. It complies with the IEEE 1284 standard (Levels 1 & 2) and includes three additional lines for host-peripheral handshaking. The device features TTL-compatible inputs with at least 300mV of hysteresis at VCC = 3.3V. It operates within a supply voltage range of 3.0V to 3.6V and an ambient temperature range of 0°C to +70°C. The component is housed in a 20-pin plastic TSSOP Type I package.

Feature Summary

• Provides asynchronous, 4-bit bidirectional data transmission compliant with IEEE 1284 standards
• Includes dedicated lines for host-to-peripheral handshaking signals
• Features TTL-compatible inputs with inherent input hysteresis for low noise operation
• Offers configurable B/Y-side outputs selectable between totem pole and open drain styles

Applications

• Asynchronous parallel printer interfaces for personal computers
• Bi-directional data transmission between host systems and peripheral devices
• IEEE 1284 Level 1 and Level 2 compliant communication links

Procurement Notes

Verify the specific ordering code matches the required package type, as the family includes SO and SSOP variants. Confirm that the application environment remains within the specified 0°C to +70°C operating temperature range. Ensure power supply voltages are strictly maintained between 3.0V and 3.6V to prevent exceeding absolute maximum ratings. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when designing an asynchronous 4-bit parallel interface requiring IEEE 1284 compliance. It is suitable for applications needing TTL-compatible inputs and configurable output drive styles on the B/Y bus. Consider the 20-pin TSSOP package constraints for PCB layout. Verify that the system's logic levels align with the 3.3V supply requirements and that ESD protection specifications meet MIL STD 883 Method 3015 criteria.

Part Context

This part belongs to the 74LVC series of integrated circuits manufactured by Philips/NXP Semiconductors. It is specifically engineered for low-voltage parallel interface applications. The datasheet indicates it was originally published in November 1995. The PW suffix denotes the 20-pin plastic TSSOP Type I package variant.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.