74HC243DB,112

Overview

The 74HC243DB,112 is a high-speed Si-gate CMOS quad bus transceiver with non-inverting 3-state outputs. It supports bidirectional asynchronous data communication across four lines. The device operates within a supply voltage range of 2.0 V to 6.0 V and features low-power dissipation characteristics. Propagation delay is specified at 6 ns typ at 5.0 V with 15 pF load. ESD protection exceeds 2000 V (HBM) and 200 V (MM). It complies with JEDEC standard no. 7A and is available in an SSOP14 package.

Feature Summary

• Non-inverting 3-state outputs for bus isolation
• Bidirectional 4-line asynchronous data communication
• High ESD protection capabilities

Applications

• Data bus communication systems
• Bus driver applications
• Memory interface circuits

Procurement Notes

Verify the specific ordering suffix '112' against current manufacturer documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status and lead times directly with authorized distributors or Nexperia sales offices, as availability may vary by region.

Selection Notes

Select this component when non-inverting logic is required for bidirectional bus interfacing. Ensure the operating voltage aligns with the 2.0 V to 6.0 V range. Consider the SSOP14 package constraints for PCB layout. Verify that the propagation delay meets system timing requirements under expected load conditions.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices. It is pin-compatible with low power Schottky TTL (LSTTL) standards. The device is manufactured by Nexperia (formerly Philips Semiconductors) and adheres to JEDEC standard no. 7A specifications for digital integrated circuits.

Replacement Considerations

The 74HC242DB is a similar device but features inverting outputs. Other quad bus transceivers from the same family may offer different electrical characteristics or packaging options. Verify functional compatibility before substitution.