M74HC155RM13TR

Overview

The M74HC155RM13TR is a high-speed CMOS dual 2-to-4 line decoder fabricated in silicon gate C2MOS technology. It features two independent decoders with individual strobe inputs (1G, 2G) and data inputs (1C, 2C), sharing common binary address inputs (A and B). The device operates within a wide voltage range of 2V to 6V. Propagation delay is typically 13ns at VCC = 6V. Quiescent supply current is maximized at 4μA at 25°C. Output drive capability supports symmetrical impedance with |IOH| = IOL = 4mA minimum.

Feature Summary

• Dual 2-to-4 line decoding functionality with independent control strobes
• High noise immunity with input thresholds defined as 28% of VCC
• Balanced propagation delays ensuring symmetrical output transition times
• Integrated protection circuits against static discharge and transient excess voltage

Applications

• Data routing and demultiplexing in digital systems
• Address decoding for memory or peripheral selection
• Building 3-to-8 line decoders by combining both sections

Procurement Notes

Verify the specific package type upon ordering, as the suffix RM13TR indicates SOP packaging. Confirm end-of-life status with the manufacturer or authorized distributors before finalizing design-in plans. Ensure compatibility with existing PCB footprints if replacing older components from this series.

Selection Notes

Select this component when dual independent decoding channels are required within a single package. It is suitable for applications needing low power dissipation combined with LSTTL-compatible speed performance. Verify that the operating temperature range of -55°C to 125°C meets the environmental requirements of the target system.

Part Context

This part belongs to the M74HC155 series of logic ICs manufactured by STMicroelectronics. It is functionally compatible with the standard 74LS155 series but utilizes CMOS technology for lower power consumption. The device is available in multiple packages including DIP, SOP, and TSSOP, with the RM13TR variant specifically denoting the surface-mount SOP configuration.

Replacement Considerations

Direct pin-compatible replacements include other manufacturers' 74HC155 variants. Ensure any substitute maintains the same SOP-16 footprint and electrical characteristics, particularly the 2V to 6V operating voltage range and propagation delay specifications.