74HCT245BQ,115

Overview

The Nexperia 74HCT245BQ,115 is an octal bus transceiver with 3-state outputs housed in a DHVQFN20 package (SOT764-1). It operates on a single supply voltage ranging from 4.5 V to 5.5 V. The device features TTL input levels and non-inverting data transmission between two 8-bit ports controlled by direction (DIR) and output enable (OE) signals. Propagation delay is specified at a maximum of 33 ns under standard conditions.

Feature Summary

• Octal bidirectional bus interface with non-inverting 3-state outputs
• TTL-compatible input logic levels for direct interfacing
• Integrated clamp diodes on inputs to support current limiting resistors
• High noise immunity and robust latch-up performance

Applications

• Mixed 5 V and 3.3 V system applications
• Industrial control systems requiring signal level translation
• Telecommunications infrastructure equipment
• Test and measurement systems

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component when an 8-bit bidirectional interface is required with TTL-compatible inputs. Ensure the design accommodates the 4.5 V to 5.5 V supply range. Consider the DHVQFN20 package dimensions for PCB layout constraints and thermal dissipation requirements relative to other available packages.

Part Context

This part belongs to the 74HCT series, which provides CMOS low power dissipation with TTL-compatible inputs. It is part of a broader family of transceivers offering various bit widths and package options, designed for applications needing wide supply voltage ranges and high noise immunity across industrial temperature specifications.

Replacement Considerations

Direct pin-to-pin replacements include other manufacturers' SN74HCT245 variants or Nexperia's 74HC245BQ,115 if CMOS input levels are acceptable. Verify that alternative parts meet the same propagation delay and supply voltage specifications.