GTL2018PW,112

Translators, Level Shifters Overview

The GTL2018PW,112 is an octal translating transceiver designed to interface 3.3 V LVTTL systems with GTL-, GTL, or GTL+ buses. It operates within a supply voltage range of 3.0 V to 3.6 V and features 5 V tolerant LVTTL inputs on the A port. The device supports bidirectional data transfer controlled by a DIR pin, allowing it to function as either a GTL-to-LVTTL sampling receiver or an LVTTL-to-GTL driver. It includes adjustable Vref from 0.5 V to 0.5VCC and supports partial power-down modes.

Translators, Level Shifters Feature Summary

• Operates as an octal GTL-/GTL/GTL+ sampling receiver or LVTTL to GTL-/GTL/GTL+ driver
• Features 5 V tolerant LVTTL inputs for direct access to TTL or 5 V CMOS inputs
• Includes adjustable Vref ranging from 0.5 V to 0.5VCC for flexible termination compatibility
• Supports partial power-down applications with latch-up protection exceeding 100 mA per JESD78

Translators, Level Shifters Applications

• Interfacing 3.3 V LVTTL systems with GTL-/GTL/GTL+ buses
• Bidirectional translation between LVTTL and GTL logic families
• Systems requiring 5 V tolerant input access for TTL or 5 V CMOS integration

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix to confirm package type and compliance status. The standard PW variant uses TSSOP24 packaging. Check for the /Q900 suffix if automotive qualification under AEC-Q100 standards is required. Confirm RoHS compliance and ensure the datasheet revision matches current production specifications before finalizing procurement.

Translators, Level Shifters Selection Notes

Select this component when bridging 3.3 V LVTTL logic with GTL-based bus architectures. Ensure the application requires bidirectional translation capabilities controlled by a direction pin. Verify that the operating temperature range of -40 °C to +85 °C meets environmental requirements. Consider the TSSOP24 package dimensions for PCB layout constraints.

Translators, Level Shifters Part Context

The GTL2018 belongs to NXP's family of translating transceivers designed for mixed-voltage system interfaces. It specifically addresses the need to connect Low Voltage Transistor-Transistor Logic (LVTTL) components with Gunning Transceiver Logic (GTL) buses. This role is critical in legacy system upgrades or hybrid designs where different logic families must communicate reliably across voltage domains.

Translators, Level Shifters Replacement Considerations

Consult official NXP documentation for qualified substitutes. The GTL2018PW/Q900 is an automotive-qualified version of the same functional device.