SN65ELT21DGK

Translators, Level Shifters Overview

The SN65ELT21DGK is a differential PECL to TTL translator manufactured by Texas Instruments. It operates within a supply voltage range of 4.2 V to 5.7 V and supports data rates up to 400 Mb/s. The device features a propagation delay of 3 ns and functions reliably across an operating temperature range from -40°C to +85°C. It is housed in an 8-pin VSSOP package, designed for surface-mount installation with a power dissipation rating of 840 mW.

Translators, Level Shifters Feature Summary

• Converts differential PECL input signals to standard TTL output levels
• Supports high-speed data transmission at rates up to 400 Mb/s
• Operates within a wide industrial temperature range

Translators, Level Shifters Applications

• Interfacing PECL clock sources with TTL logic circuits
• High-speed data communication systems requiring level translation
• Industrial control applications involving mixed voltage logic domains

Translators, Level Shifters Procurement Notes

Verify the specific suffix DGK indicates the VSSOP-8 package variant when ordering. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to procurement. Ensure the supplier provides traceable origin for quality assurance purposes.

Translators, Level Shifters Selection Notes

Select this component when interfacing 5V PECL drivers with TTL receivers in space-constrained designs. The VSSOP package offers a compact footprint suitable for dense PCB layouts. Consider the 400 Mb/s speed limit and 3 ns delay characteristics against system timing requirements before finalizing the design choice.

Translators, Level Shifters Part Context

This part belongs to the SN65ELT21 family of translators. It serves as the reverse counterpart to the SN65ELT20, which translates TTL to PECL. Both devices facilitate bidirectional communication between different logic families while maintaining signal integrity over high-speed differential lines.

Translators, Level Shifters Replacement Considerations

The SN65ELT21D is a direct functional substitute offering identical electrical specifications but packaged in an SOIC-8 format instead of VSSOP.