MC1042P

Encoders, Decoders, Converters Overview

The MC1042P is a high-speed ECL (Emitter-Coupled Logic) component manufactured by Motorola, belonging to the 10K series. It functions as a dual 3-input OR gate with open-emitter outputs, designed for applications requiring simultaneous driving of multiple transmission lines or wire-ORing of gating levels. The device operates on a -5.2 V supply voltage and features a plastic DIP-16 package. Key electrical characteristics include a typical propagation delay of 2.4 ns with all outputs loaded and transition times of 2.2 ns. It supports an operating temperature range from -30 °C to 85 °C and draws a maximum supply current of 80 mW per package under no-load conditions.

Encoders, Decoders, Converters Feature Summary

• Dual independent 3-input OR logic functions
• Open-emitter output configuration for flexible wiring
• High-speed ECL performance suitable for clock distribution

Encoders, Decoders, Converters Applications

• Clock distribution networks requiring minimum skew
• Driving multiple transmission lines simultaneously
• Wire-ORing multiple gating levels to minimize component count

Encoders, Decoders, Converters Procurement Notes

Verify the specific suffix designation against official datasheets to confirm package type and material composition. Ensure compatibility with -5.2 V ECL power supplies and check for obsolete status or lifecycle notifications from NXP Semiconductors, the successor manufacturer. Confirm lead time requirements due to potential discontinuation of legacy 10K series components.

Encoders, Decoders, Converters Selection Notes

Select this component when designing systems that require fast, low-power OR logic in an ECL environment. Consider the open-emitter outputs for their ability to facilitate wire-OR connections, which can reduce overall gate density. Verify that the -30 °C to 85 °C commercial temperature range meets the environmental constraints of the target application.

Encoders, Decoders, Converters Part Context

The MC1042P is part of Motorola's 10K series of ECL logic devices, now maintained by NXP Semiconductors. This series was widely used in high-speed digital systems before the prevalence of faster ECL families. The device serves as a fundamental building block for complex logic structures requiring rapid switching speeds and precise timing control in telecommunications and computing hardware.

Encoders, Decoders, Converters Replacement Considerations

Direct pin-compatible replacements may be limited due to the age of the 10K series. Check for equivalents from ON Semiconductor or NXP that maintain the same ECL voltage levels and logic function. Verify that any substitute component matches the DIP-16 package dimensions and thermal characteristics.