74VHCT125AMTR

Buffers, Drivers, Receivers, Transceivers Overview

The 74VHCT125AMTR is a quad bus buffer with three-state outputs manufactured by STMicroelectronics. It operates within a supply voltage range of 4.5V to 5.5V and features TTL-compatible inputs (VIH min 2V, VIL max 0.8V). The device provides symmetrical output impedance with minimum drive currents of 8mA for both high and low states. Typical propagation delay is 3.8ns at 5V with 15pF load. Power dissipation is low, with maximum quiescent current of 2µA. It includes power-down protection on all inputs and outputs.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Advanced CMOS technology providing high-speed operation and low power consumption
• TTL-compatible input thresholds enabling direct interfacing with 5V logic systems
• Power-down protection allows inputs to accept voltages from 0V to 7V regardless of supply state
• Symmetrical output impedance ensures balanced rise and fall times

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data buffering in digital communication systems
• Interface circuits between 5V and 3V logic domains
• Bus-oriented memory and driver applications requiring three-state control

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type against the ordering suffix; AMTR indicates SOP-14 packaging. Confirm RoHS compliance status as specifications are subject to change without notice. Ensure the design accounts for the absolute maximum ratings regarding DC input and output voltages to prevent device damage during operation or storage.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when TTL-level compatibility is required alongside high-speed performance. The VHCT series bridges the gap between standard CMOS and TTL logic families. Consider the operating temperature range of -55°C to 125°C for industrial environments. Verify that the load capacitance requirements align with the specified propagation delay characteristics.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74VHCT family of advanced high-speed CMOS logic devices. It is functionally pin-compatible with the standard 74LS125 series but offers superior speed and lower power dissipation. The device utilizes sub-micron silicon gate and double-layer metal wiring C2MOS technology for enhanced performance and latch-up immunity.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct functional equivalents include the 74VHCT125ATTR (TSSOP package) from the same manufacturer. Cross-manufacturer replacements must match the 74VHCT logic family specifications, including voltage ranges and input threshold levels, to ensure circuit compatibility.