74HC245DB,118

Overview

The Nexperia 74HC245DB,118 is an octal bus transceiver with 3-state outputs housed in a SO20 plastic small outline package (SOT163-1). It operates within a supply voltage range of 2.0 V to 6.0 V and supports CMOS input levels. The device features non-inverting data transfer controlled by Output Enable (OE) and Direction (DIR) pins. Inputs include clamp diodes for interfacing with voltages exceeding VCC. It complies with JEDEC standards JESD8C and JESD7A, offering high noise immunity and low power dissipation.

Feature Summary

• Octal bidirectional bus interface with non-inverting 3-state outputs
• CMOS low power dissipation and high noise immunity
• Input clamp diodes enable interfacing to voltages in excess of VCC
• Complies with JEDEC standards JESD8C and JESD7A

Applications

• Memory address registers
• Clock drivers
• Bidirectional bus transmission systems

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component for applications requiring an 8-bit bidirectional interface with CMOS logic levels. Ensure the operating voltage stays within the 2.0 V to 6.0 V range. Consider the SO20 package dimensions for PCB layout. Verify that the required propagation delay and output drive capabilities meet the system specifications under the intended load conditions.

Part Context

This part belongs to the 74HC/HCT245 family of octal bus transceivers manufactured by Nexperia. It shares functional similarities with other variants like the 74HCT245 but differs in input logic levels, supporting CMOS rather than TTL inputs. The DB suffix indicates the SO20 package variant, distinct from TSSOP or QFN options available in the same logical family.

Replacement Considerations

Direct replacements include other 74HC245 variants from different manufacturers or Nexperia packages such as 74HC245PW (TSSOP20) or 74HC245BQ (DHVQFN20), provided pin compatibility and electrical characteristics match the design requirements.