SN74LVCE161284DGGR

Specialty Logic Overview

The SN74LVCE161284DGGR is a 19-bit IEEE Std 1284 translation transceiver in a 48-pin TSSOP package. It operates with VCC at 3 V to 3.6 V and VCC CABLE at 3 V to 5.5 V. The device features an auto-power-up circuit that holds Y9–Y13 outputs high until A9–A13 inputs go high, preventing printer errors. Integrated 1.4-kΩ pullup resistors are present on open-drain outputs. Propagation delays range from 1 ns to 30 ns depending on the data path.

Specialty Logic Feature Summary

• Auto-Power-Up feature prevents printer errors by holding specific outputs high during power-on
• Integrated 1.4-kΩ pullup resistors eliminate the need for discrete external components
• Dual supply design supports 5-V tolerant cable-side I/O pins while operating at lower peripheral voltages
• Flow-through architecture optimizes PCB layout for bidirectional data buses

Specialty Logic Applications

• IEEE Std 1284-I (Level-1 Type) parallel peripheral interfaces
• IEEE Std 1284-II (Level-2 Type) parallel peripheral interfaces
• Asynchronous two-way communication between data buses
• Printer system connections requiring error-free power-up sequences

Specialty Logic Procurement Notes

Verify the exact ordering suffix matches the required package type, as the DGGR suffix specifically denotes the TSSOP-48 variant. Confirm RoHS compliance and lead finish details against the latest Texas Instruments packaging addendum. Ensure the application environment stays within the specified 0°C to 70°C operating temperature range for this specific part number.

Specialty Logic Selection Notes

Select this component when designing systems compliant with IEEE Std 1284 specifications that require integrated pullup resistors. It is suitable for applications needing dual-voltage translation between 3-V logic and 5-V cable interfaces. The flow-through pinout is advantageous for high-density board layouts where minimizing trace length is critical for signal integrity.

Specialty Logic Part Context

This device belongs to the SN74LVCE161284 family of translation transceivers designed specifically for parallel port standards. Unlike standard bus transceivers, it includes dedicated drivers for PERI LOGIC and receivers for HOST LOGIC lines. The LVCE series focuses on low voltage operation with enhanced ESD protection capabilities exceeding JESD 78 Class II latch-up performance.

Specialty Logic Replacement Considerations

SN74LVCE161284DLR is a direct replacement offering the same functionality in an SSOP-48 package.