MC10H680FNR2G

Translators, Level Shifters Overview

The MC10H680FNR2G is a dual-supply, 4-bit differential ECL bus to TTL bus transceiver manufactured by onsemi. It operates with an ECL supply voltage (VEE) ranging from -5.7 V to -4.5 V and a TTL supply voltage (VCCT) of +5.0 V ±10%. The device features 28-pin PLCC packaging and supports bidirectional data transfer between ECL and TTL buses. Propagation delays range from 1.8 ns to 4.9 ns depending on direction and temperature. It includes dedicated control pins for direction and chip enable, ensuring reliable signal integrity in high-speed digital systems.

Translators, Level Shifters Feature Summary

• Supports bidirectional data transfer between differential ECL buses and standard TTL buses
• Features separate power and ground pins for both ECL and TTL sections to minimize switching noise
• Includes internal circuitry to detect disabled states and prevent oscillation at the ECL inputs
• Provides high-drive TTL outputs capable of sourcing 15 mA and sinking 48 mA

Translators, Level Shifters Applications

• Interfacing high-speed differential ECL buses with standard TTL logic circuits
• System designs requiring increased bus speed and noise immunity over standard TTL limitations
• Bidirectional data routing in mixed-signal digital environments

Translators, Level Shifters Procurement Notes

Verify that the specific order suffix matches the required package type and lead-free status. Confirm compatibility with the system's ECL supply voltage range (-5.7 V to -4.5 V) and TTL supply (+5.0 V). Ensure control pin levels align with MECL 10H or 100K logic requirements as specified in the datasheet. Check for moisture sensitivity level 3 handling requirements during assembly.

Translators, Level Shifters Selection Notes

Select this component when interfacing differential ECL buses with TTL logic is required. It is suitable for applications needing high drive capability on the TTL side and robust noise immunity on the ECL side. Consider the propagation delay specifications relative to the system clock speed. Verify that the PLCC-28 package fits the PCB layout constraints and thermal management requirements.

Translators, Level Shifters Part Context

This part belongs to the MC10H/100H680 family of bus transceivers designed for mixed-voltage systems. It enables designers to overcome the speed limitations of standard TTL buses by utilizing differential ECL signaling. The device integrates direction and chip enable controls to manage data flow effectively between the two distinct logic families.

Translators, Level Shifters Replacement Considerations

MC10H680FN is the non-lead-free equivalent in the same PLCC-28 package. MC100H680 variants are available for systems using 100K compatible control levels. Verify pinout and electrical characteristics match before substitution.