SN74F253D

Overview

The SN74F253D is a dual 4-input multiplexer from the Texas Instruments SN74F logic family, housed in a 16-pin SOIC package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a propagation delay of 9 ns. The device functions across an operating temperature range of 0°C to +70°C.

Feature Summary

• Integrates two independent 4-to-1 data selectors within a single integrated circuit
• Provides high-speed signal routing capabilities suitable for fast TTL applications
• Features three-state outputs to facilitate bus-oriented systems

Applications

• Data routing in digital communication systems
• Address decoding circuits
• Signal selection in microprocessor-based designs

Procurement Notes

Verify that the component matches the specific SN74F253D part number rather than other variants like SN74F253DR or SN74HC253. Confirm the package type is SOIC-16 and check for RoHS compliance status on official datasheets before procurement.

Selection Notes

Select this component when dual 4:1 multiplexing with three-state outputs is required in a 16-pin surface-mount format. Ensure the design environment supports the 4.5V to 5.5V supply range and the 0°C to +70°C temperature specifications typical of the F series.

Part Context

This device belongs to the SN74F (Fast) logic family, known for higher speed performance compared to standard TTL. It serves as a functional equivalent to older 74LS253 designs but offers improved switching speeds for modern digital logic applications requiring rapid data path selection.

Replacement Considerations

SN74F253DR

FAQ

What is the maximum propagation delay for the SN74F253D?

The maximum propagation delay is 9 ns.

Does the SN74F253D support three-state outputs?

Yes, the device features three-state outputs to allow connection to shared buses.