74HCT245PW,118

Overview

The Nexperia 74HCT245PW,118 is an octal bus transceiver with 3-state outputs housed in a TSSOP20 package. It operates within a supply voltage range of 4.5 V to 5.5 V and accepts TTL-level inputs. The device features non-inverting data transfer controlled by Output Enable (OE) and Direction (DIR) signals. Propagation delay is specified at 22 ns maximum under standard conditions.

Feature Summary

• Octal bidirectional bus interface with non-inverting 3-state outputs
• TTL input levels compatible with standard logic families
• Direction control via DIR pin for flexible signal routing

Applications

• Telecommunications infrastructure systems
• Industrial control applications
• Test and measurement equipment

Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the application environment remains within the specified temperature range and voltage limits. Ensure proper handling procedures are followed due to ESD sensitivity specifications defined in JEDEC standards.

Selection Notes

Select this component when interfacing between TTL-driven sources and CMOS loads requiring high noise immunity. The wide operating temperature range supports demanding industrial environments. Verify that the propagation delay meets system timing requirements for the target bus architecture.

Part Context

This part belongs to the 74HCT series, designed for compatibility with Transistor-Transistor Logic (TTL) inputs while utilizing Complementary Metal Oxide Semiconductor (CMOS) output characteristics. It provides low power dissipation and high noise immunity compared to older logic families.

Replacement Considerations

The 74HC245PW,118 serves as a functional alternative but requires CMOS-compatible input drivers rather than TTL sources.