MC100EP91DW

Translators, Level Shifters Overview

The MC100EP91DW is a triple any-level positive input to NECL output translator manufactured by onsemi. It accepts LVPECL, LVTTL, LVCMOS, HSTL, CML, or LVDS signals and translates them to differential NECL outputs (-3.0 V to -5.5 V). The device operates with three power rails: VCC (2.375 V to 3.8 V), VEE (-3.0 V to -5.5 V), and GND (0 V). Key electrical parameters include a maximum input clock frequency exceeding 2.0 GHz typical, a maximum input data rate exceeding 2.0 Gb/s typical, and a typical propagation delay of 500 ps. It is housed in a SOIC-20 Wide Body package.

Translators, Level Shifters Feature Summary

• Accepts multiple single-ended and differential input signal levels including LVPECL, LVTTL, LVCMOS, HSTL, CML, and LVDS.
• Translates inputs to differential NECL outputs compatible with negative supply voltages ranging from -3.0 V to -5.5 V.
• Features internal pull-down resistors on D inputs and pull-up/pull-down networks on D inputs to ensure stable default states when inputs are open or grounded.
• Includes an internally generated VBB pin available for use as a switching reference voltage for single-ended inputs or to rebias AC-coupled inputs.

Translators, Level Shifters Applications

• Interfacing high-speed digital circuits requiring translation between various logic families and NECL standards.
• Clock distribution systems utilizing LVPECL or LVDS sources driving NECL loads.
• Data communication equipment requiring level shifting for CML or HSTL signals to NECL receivers.

Translators, Level Shifters Procurement Notes

Verify the specific suffix 'DW' corresponds to the SOIC-20 Wide Body package configuration. Confirm that the procurement source provides the 'G' designation indicating Pb-Free compliance if required by assembly specifications. Ensure the ordering quantity matches the standard tube packaging unit of 38 units per tube for this specific package style.

Translators, Level Shifters Selection Notes

Select this component when interfacing mixed-signal environments where diverse input standards must drive a common NECL output bus. The device supports wide operating voltage ranges for both positive and negative supplies, accommodating variations in system power rails. Designers must account for the requirement to bypass both VEE and VCC pins with 0.01 µF capacitors to ground to maintain signal integrity and stability.

Translators, Level Shifters Part Context

The MC100EP91 belongs to the 100EP series of ECL logic devices produced by onsemi. This series is characterized by temperature compensation and high-speed performance suitable for demanding digital applications. The DW suffix specifically denotes the SOIC-20 Wide Body surface-mount package variant within the broader MC100EP91 product family.

Translators, Level Shifters Replacement Considerations

The MC100EP91MNG is listed as discontinued and not recommended for new designs. The MC100EP91DWR2G represents the same functional device but utilizes a tape and reel shipping format instead of the tube packaging associated with the DW suffix.