PI4GTL2014LE

Translators, Level Shifters Overview

The PI4GTL2014LE is a 4-bit translating transceiver designed for interfacing 3.3 V LVTTL systems with GTL-, GTL, and GTL+ buses. It operates within a supply voltage range of 2.3 V to 3.6 V. 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. The LVTTL inputs are tolerant up to 5.5 V, while GTL I/Os operate up to 3.6 V. It features adjustable Vref from 0.5 V to VCC/2 and includes partial power-down capability.

Translators, Level Shifters Feature Summary

• Supports bidirectional translation between LVTTL and GTL-/GTL/GTL+ bus standards
• Provides 5.5 V tolerance on LVTTL input pins for direct interface compatibility
• Allows adjustable reference voltage (Vref) to accommodate various GTL termination schemes
• Includes high ESD protection and latch-up resistance for robust operation

Translators, Level Shifters Applications

• Interfacing 3.3 V logic systems with GTL-based memory buses
• Data transmission in server and storage architectures requiring level shifting
• System integration where mixed voltage domains (LVTTL and GTL) must communicate

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix when purchasing. The 'E' suffix indicates lead-free and green material compliance, while 'X' denotes tape and reel packaging. Ensure the base part number matches the required package type, typically TSSOP-14, to align with board layout specifications. Confirm that the selected variant meets the environmental and handling requirements for your assembly process.

Translators, Level Shifters Selection Notes

Select this component when bridging 3.3 V LVTTL interfaces with GTL-compatible devices. It is suitable for applications requiring 4-bit wide data paths with configurable direction control. Consider the 5.5 V input tolerance if interfacing with legacy TTL or 5 V CMOS sources. Ensure the system design accommodates the required VTT termination voltages and Vref settings for the target GTL standard.

Translators, Level Shifters Part Context

This device belongs to Diodes Incorporated's family of translating transceivers. It addresses the need for seamless communication between different logic families in mixed-voltage environments. The PI4GTL2014 provides a compact solution for signal integrity and level conversion in high-speed digital systems without requiring complex external circuitry.

Translators, Level Shifters Replacement Considerations

Check for updated revisions or alternative packages from the manufacturer. Verify pinout compatibility and electrical characteristics against current designs before substitution.

Translators, Level Shifters FAQ

Can the PI4GTL2014LE interface directly with 5 V CMOS inputs?

Yes, the LVTTL input ports (A port) are tolerant up to 5.5 V, allowing direct connection to 5 V CMOS or TTL inputs.

What determines the direction of data flow in the PI4GTL2014LE?

The direction is controlled by the DIR pin. A HIGH level configures the device as a GTL-to-LVTTL receiver, while a LOW level configures it as an LVTTL-to-GTL driver.