GTL16612DGG,112

Universal Bus Functions Overview

The GTL16612DGG,112 is an 18-bit bidirectional universal translator designed for VCC operation at 3.3 V with I/O compatibility up to 5 V. It translates between GTL/GTL+ logic levels on B ports and LVTTL/TTL logic levels on A ports. The device features non-inverting 3-State bus compatible outputs in both send and receive directions. Data flow is controlled by output enable, latch enable, and clock inputs. It includes power-up reset and power-up 3-State functionality. The component operates within a temperature range of -40 to +85 °C and utilizes a 56-Pin Plastic TSSOP package.

Universal Bus Functions Feature Summary

• Translates between GTL/GTL+ logic levels and LVTTL/TTL logic levels
• Provides 5 V I/O tolerance on the LVTTL/TTL side
• Features positive edge triggered clock inputs with latch enable control
• Includes ESD protection exceeding specified HBM and MM standards

Universal Bus Functions Applications

• Bidirectional bus interface translation
• GTL/GTL+ to LVTTL/TTL level shifting
• Universal transceiver applications requiring 3-State buffering

Universal Bus Functions Procurement Notes

Verify the specific ordering code GTL16612DGG against the manufacturer's current product status documentation. Confirm that the 56-Pin Plastic TSSOP package matches the required board layout constraints. Ensure the operating temperature range of -40 to +85 °C aligns with the system environment specifications. Cross-reference the datasheet revision history to confirm no recent design changes affect pinout or electrical characteristics.

Universal Bus Functions Selection Notes

Select this component when interfacing systems requiring translation between GTL/GTL+ and LVTTL/TTL voltage domains. The 18-bit width supports wide data buses without external multiplexing. The 3-State outputs allow for shared bus architectures. Verify that the supply voltage requirements match the 3.3 V VCC specification. Consider the propagation delay characteristics relative to the system clock speed to ensure timing compliance.

Universal Bus Functions Part Context

This device belongs to the Philips Semiconductors (now NXP) 74GTL family of high-performance BiCMOS products. It serves as a bridge between different logic families, specifically addressing the need for level translation in mixed-voltage environments. The GTL16612 replaces older discrete translation solutions by integrating 18 channels into a single IC, reducing board space and complexity.

Universal Bus Functions Replacement Considerations

The GTL16612DL is a direct substitute offering identical electrical characteristics but housed in a 56-Pin Plastic SSOP package instead of TSSOP. Verify footprint compatibility before substitution. No other cross-model replacements are documented in the provided source material.