54ACTQ245JRQMLV

Overview

The 54ACTQ245JRQMLV is a space-level logic bus transceiver from the ACT series, manufactured by National Semiconductor. It features an 8-bit configuration with true output and three-state capability. The device operates within a supply voltage range of 4.5V to 5.5V and supports output currents of 24mA for both high and low states. Designed for through-hole mounting, it utilizes a 20-pin CERDIP package. The component ensures reliable performance across an operating temperature range of -55°C to 125°C (TA), making it suitable for harsh environments requiring robust digital signal transmission.

Feature Summary

• Space-qualified logic design for harsh environment reliability
• Eight-bit bidirectional bus transceiver functionality
• Three-state outputs for effective bus line management

Applications

• Military aerospace communication systems
• Satellite data bus interfaces
• Ruggedized industrial control networks

Procurement Notes

Verify the specific ordering suffix and manufacturer lot codes upon request. Confirm that the component meets current space-grade qualification standards required for your project. Ensure the supplier provides traceability documentation consistent with military or aerospace procurement regulations. Check for any specific handling instructions related to ceramic dual in-line packages.

Selection Notes

Select this component when space-qualified reliability is mandatory for an 8-bit bus interface. It is appropriate for applications requiring wide temperature tolerance and high noise immunity. Consider the CERDIP package constraints if board space allows for through-hole technology. Compare against standard commercial grades only if environmental qualifications are not critical.

Part Context

This part belongs to the 54ACTQ245 family of bus transceivers. The 'QML' designation indicates qualification under Military Quality Level standards. It serves as a non-inverting driver for digital signals in critical infrastructure where standard commercial components would fail due to radiation or thermal stress.

Replacement Considerations

Direct substitutes include other space-qualified 8-bit bus transceivers with identical pinouts and electrical characteristics. Verify compatibility with existing system voltage levels and signal integrity requirements before substitution.