74HCT245PW,112

Overview

The Nexperia 74HCT245PW,112 is an octal bus transceiver with 3-state outputs housed in a TSSOP20 package (SOT360-1). It operates within a supply voltage range of 4.5 V to 5.5 V and supports temperatures from -40 °C to +125 °C. The device features non-inverting data transfer controlled by Output Enable (OE) and Direction (DIR) inputs. Static characteristics specify a maximum low-level output current of 6.0 mA and high-level output current of -6.0 mA at 4.5 V. Dynamic performance includes a propagation delay of up to 33 ns and enable/disable times of 45 ns under specified load conditions.

Feature Summary

• Octal bidirectional bus interface with non-inverting 3-state outputs
• TTL input levels compatible for the HCT logic family
• Direction control via DIR pin and high-impedance OFF-state via OE pin

Applications

• Mobile phones
• Personal computers
• Consumer electronics
• Telecommunications equipment

Procurement Notes

Verify the specific ordering suffix matches the required tape and reel configuration. Confirm that the TSSOP20 package variant aligns with PCB footprint requirements. Ensure the temperature grade meets operational environmental specifications. Cross-reference the manufacturer part number against official distributor catalogs to confirm authenticity and revision status before finalizing procurement orders.

Selection Notes

Select this component when TTL-compatible inputs are required alongside CMOS drive capabilities. The wide operating temperature range suits industrial or automotive environments. Verify that the 6.0 mA output drive current satisfies the load requirements of the connected bus lines. Consider the TSSOP20 package dimensions for space-constrained board layouts compared to other available package options.

Part Context

This device belongs to the 74HCT series of logic integrated circuits, designed for compatibility with standard TTL logic families while utilizing CMOS technology. The 245 architecture provides an 8-bit wide data path, facilitating parallel data transmission between buses. It serves as a fundamental building block for data routing in digital systems requiring direction control and tri-state isolation.

Replacement Considerations

Direct replacements include the 74HC245PW variants for CMOS input compatibility or other 74HCT245 packages such as SO20 if pinout and thermal constraints allow. Verify functional equivalence regarding propagation delays and output drive strengths when substituting.