74LVC245AMTR

Overview

The STMicroelectronics 74LVC245AMTR is a low voltage CMOS octal bus transceiver with three-state outputs. It operates within a supply voltage range of 1.65V to 3.6V, featuring 5V tolerant inputs and outputs. The device provides symmetrical output impedance with minimum drive currents of ±24mA at VCC = 3V. Propagation delay is specified as a maximum of 6.3ns at VCC = 3V. It includes power-down protection on inputs and outputs, balanced propagation delays, and latch-up performance exceeding 500mA per JESD 17 standards.

Feature Summary

• Supports two-way asynchronous communication between data buses with direction controlled by the DIR input.
• Features five-volt tolerant inputs and outputs suitable for mixed voltage applications.
• Includes power-down protection on all inputs and outputs to prevent excessive current draw during power-off states.

Applications

• Two-way asynchronous communication between data buses
• Mixed voltage system interfacing

Procurement Notes

Verify that the ordering suffix 'MTR' corresponds specifically to the SOP-20 package in tape and reel configuration. Confirm the manufacturer is STMicroelectronics. Ensure the component meets the required operating temperature range of -55°C to 125°C for your specific application environment.

Selection Notes

Select this component when an octal bus transceiver is required for low voltage logic families. It is suitable for designs needing high-speed data transfer with minimal skew. Consider the 5V tolerance feature if interfacing with legacy 5V systems while operating the core logic at lower voltages.

Part Context

This part belongs to the 74LVC245A family of octal bus transceivers manufactured by STMicroelectronics. It utilizes sub-micron silicon gate and double-layer metal wiring C2MOS technology. The device is designed for low power and low noise applications, offering higher speed performance at 3.3V compared to the 5V AC/ACT family.

Replacement Considerations

Check datasheets for other manufacturers' 74LVC245A equivalents to ensure pin compatibility and electrical parameter matching before substitution.