74HC245PW,118

Overview

The Nexperia 74HC245PW,118 is an octal bus transceiver with non-inverting 3-state outputs housed in a TSSOP20 package (SOT360-1). It operates within a supply voltage range of 2.0 V to 6.0 V and supports CMOS input levels. The device features direction control via DIR and output enable via OE pins. At 5.0 V with a 15 pF load, the propagation delay is typically 7 ns. It complies with JEDEC standards JESD8C and JESD7A, offering latch-up performance exceeding 100 mA per JESD 78 Class II Level B.

Feature Summary

• Octal bidirectional bus interface with non-inverting 3-state outputs
• Direction control through dedicated send/receive and output enable inputs
• Input clamp diodes allow interfacing to voltages exceeding VCC using current limiting resistors
• High noise immunity and low power dissipation characteristics

Applications

• Data bus interfaces for microprocessor systems
• Memory module data transfer lines
• Industrial control system signal routing
• Test equipment data acquisition paths

Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the application environment stays within the specified temperature range of -40 °C to +125 °C. Ensure supply voltage limits are respected to prevent permanent damage. Check for RoHS compliance requirements against project specifications. Validate pinout compatibility during PCB layout integration.

Selection Notes

Select this component when an 8-bit bidirectional interface is required with CMOS logic compatibility. The wide supply voltage range allows operation across various digital logic families. Consider the TSSOP20 package dimensions for space-constrained designs. Evaluate the propagation delay specifications against system timing requirements at the target operating voltage.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices manufactured by Nexperia. It serves as a standard solution for connecting parallel buses in digital circuits. The PW suffix indicates the thin shrink small outline plastic package. It is distinct from the HCT variant which utilizes TTL input levels.

Replacement Considerations

The 74HCT245PW,118 is a functional substitute with TTL-compatible input levels. Other packages such as SO20 or DHVQFN20 offer alternative form factors for the same logical function.