GTL2014PW,118

Translators, Level Shifters Overview

The GTL2014PW,118 is a 4-bit translating transceiver designed for interfacing 3.3 V LVTTL systems with GTL-/GTL/GTL+ buses. It operates on a 3.0 V to 3.6 V supply voltage and features 5 V tolerant LVTTL inputs. The device supports partial power-down modes and includes ESD protection exceeding 2000 V HBM. It is housed in a TSSOP14 package (SOT402-1) and functions as either a GTL to LVTTL sampling receiver or an LVTTL to GTL driver based on the direction pin state.

Translators, Level Shifters Feature Summary

• Functions as a 4-bit GTL-/GTL/GTL+ sampling receiver or LVTTL to GTL driver
• Features 5 V tolerant LVTTL inputs and 3.6 V tolerant GTL I/Os
• Supports adjustable Vref from 0.5 V to VCC/2 for low voltage CPU applications
• Includes partial power-down capability and high ESD/latch-up protection

Translators, Level Shifters Applications

• Interfacing 3.3 V LVTTL system interfaces with GTL bus architectures
• Connecting TTL or 5 V CMOS inputs directly via 5.5 V tolerant LVTTL ports
• Low voltage CPU bus translation requiring Vref tracking down to 0.5 V

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix when sourcing components. The standard packing method utilizes a REEL 13" Q1/T1 configuration. A variant designated with the Z suffix employs a Static Shielding Bag (SSB) solution, which requires the material to remain sealed between uses. Confirm package type and packing method requirements against the specific design needs before procurement.

Translators, Level Shifters Selection Notes

Select this component for applications requiring bidirectional translation between LVTTL and GTL logic families. Ensure the design accommodates the 3.0 V to 3.6 V operating range and provides appropriate VTT termination voltages. Consider the slightly longer propagation delays compared to the GTL2005 if timing margins are tight, particularly for low Vref operations below 0.8 V.

Translators, Level Shifters Part Context

The GTL2014 serves as a backward compatible replacement for the GTL2005, with interchanged port labels. While the GTL2005 offers shorter propagation delays, its Vref linearity degrades below 0.8 V. The GTL2014 maintains Vref tracking down to 0.5 V, making it suitable for lower voltage CPU applications despite having slightly increased propagation delays.

Translators, Level Shifters Replacement Considerations

The GTL2014PWZ is documented as a drop-in replacement for the discontinued GTL2014PW. This substitution is confirmed by PCN:202102035F01. The primary difference lies in the packaging method, with the PWZ variant utilizing a Static Shielding Bag instead of a reel.

Translators, Level Shifters FAQ

How does the GTL2014 differ from the GTL2005 regarding Vref performance?

The GTL2014 tracks Vref down to 0.5 V, whereas the GTL2005 experiences Vref linearity degradation below 0.8 V. The GTL2014 has slightly longer propagation delays than the GTL2005.

What is the function of the DIR pin on the GTL2014?

The DIR pin determines the data flow direction. When set HIGH, the device acts as a GTL to LVTTL sampling receiver (Bn = An). When set LOW, it functions as an LVTTL to GTL driver (An = Bn).