SN74LVCE161284DLR

Specialty Logic Overview

The SN74LVCE161284DLR is a 19-bit IEEE Std 1284 translation transceiver designed for asynchronous two-way communication between data buses. It operates with VCC at 3-V to 3.6-V and VCC CABLE at 3-V to 5.5-V, featuring 5-V tolerant cable-side I/O pins. The device includes eight bidirectional bits controlled by the DIR input, five drivers for the cable side, four receivers, one dedicated HOST LOGIC receiver, and one PERI LOGIC driver. Outputs switch between open-drain (HD low) and totem-pole (HD high) configurations. Integrated 1.4-kΩ pullup resistors are present on all open-drain outputs except specific logic lines.

Specialty Logic Feature Summary

• Auto-Power-Up feature prevents printer errors during power-on by keeping Y outputs high until valid signals are detected
• Integrated 1.4-kΩ pullup resistors eliminate the need for discrete external components on open-drain outputs
• Flow-through architecture optimizes PCB layout for parallel peripheral interface applications
• Supports hot insertion through Ioff and Power-Up 3-State capabilities

Specialty Logic Applications

• IEEE Std 1284-I (Level-1 Type) parallel peripheral interfaces
• IEEE Std 1284-II (Level-2 Type) parallel peripheral interfaces
• Printer systems requiring error-free power-up sequences
• Asynchronous data bus translation between host and peripheral logic

Specialty Logic Procurement Notes

Verify the SSOP-48 package designation matches the DL suffix requirement. Confirm VCC and VCC CABLE supply voltage ranges align with system specifications of 3-V to 3.6-V and up to 5.5-V respectively. Ensure operating temperature range of 0°C to 70°C meets environmental constraints. Check RoHS compliance status and lead finish details in the latest packaging addendum before ordering.

Specialty Logic Selection Notes

Select this component when designing for IEEE 1284 standards requiring 19-bit translation with integrated pullups. The dual-supply design allows flexibility in interfacing 3-V logic with 5-V cable-side peripherals. Consider the HD pin functionality if open-drain or totem-pole drive modes are required. Verify that the flow-through pinout suits the board layout requirements compared to other transceiver families.

Specialty Logic Part Context

This device belongs to the SN74LVCE161284 family of translation transceivers manufactured by Texas Instruments. It is specifically engineered for parallel peripheral interfaces compliant with IEEE Std 1284. The DL suffix indicates the SSOP-48 package variant, distinct from the DGG TSSOP-48 option. It serves as a specialized interface solution bridging host and peripheral logic buses.

Specialty Logic Replacement Considerations

SN74LVCE161284DL is the tube version of the same electrical specification and function, differing only in packaging format.