onsemi

74LVTH245MTC

74LVTH245MTC Description

The 74LVTH245MTC from onsemi is an 8-bit bidirectional transceiver designed for 2.7V to 3.6V operation, making it ideal for 3.3V systems. Housed in a 20-pin TSSOP package, this device integrates non-inverting buffers with 3-state outputs, enabling seamless bidirectional data flow between buses. It belongs to the 74LVTH series, known for high-speed, low-power performance, and features 32mA high/64mA low output drive, ensuring robust signal integrity in mixed-voltage environments. Although marked as obsolete, it remains relevant for legacy designs due to its RoHS3 compliance and REACH unaffected status.

74LVTH245MTC Features

• Voltage Range: Operates at 2.7V–3.6V, optimized for 3.3V logic systems.
• High Drive Capability: 32mA (source)/64mA (sink) current output for driving heavy loads.
• Bidirectional Interface: Non-inverting 8-bit transceiver with 3-state outputs for bus isolation.
• Low Power Consumption: LVTH technology reduces power dissipation vs. standard TTL.
• Robust Packaging: 20-TSSOP surface-mount package with MSL 1 (Unlimited) moisture sensitivity.
• Compliance: ROHS3 and EAR99 certified, suitable for export-controlled applications.

74LVTH245MTC Applications

• Bus Interface: Ideal for bidirectional data transfer in microcontroller/memory systems.
• Voltage Translation: Bridges 3.3V and 5V logic in mixed-voltage PCBs.
• Industrial Control: Used in PLCs, motor drivers, and sensor interfaces due to noise immunity.
• Telecom/Networking: Ensures signal integrity in routers, switches, and FPGA-based designs.
• Legacy Systems: Maintains compatibility in obsolete but still operational electronics.

Conclusion of 74LVTH245MTC

The 74LVTH245MTC offers a reliable bidirectional bus transceiver solution for 3.3V systems, combining high-speed performance with low-power operation. Its strong output drive and 3-state control make it suitable for voltage translation, industrial automation, and legacy upgrades. While obsolete, its RoHS3 compliance and proven reliability ensure continued utility in niche applications. Engineers should evaluate alternatives for new designs but may leverage this IC for cost-effective replacements in existing systems.