74HC08D

Overview

The Toshiba 74HC08D is a high-speed CMOS quad 2-input AND gate fabricated with silicon gate C2MOS technology. It operates within a supply voltage range of 2.0 V to 6.0 V and supports an operating temperature range from -40 °C to 125 °C. The device features balanced propagation delays, achieving a typical delay of 6 ns at 5 V. It provides a maximum quiescent supply current of 1.0 µA and includes input protection circuits against static discharge or transient excess voltage.

Feature Summary

• High-speed operation comparable to equivalent LSTTL while maintaining low power dissipation
• Internal two-stage circuit design providing buffer output for high noise immunity and stable performance
• Wide operating voltage range supporting 2.0 V to 6.0 V applications
• Integrated protection circuits on all inputs against static discharge and transient overvoltage

Applications

• Digital logic signal processing in consumer electronics
• Data acquisition systems requiring reliable AND gate functionality
• Industrial control equipment operating across extended temperature ranges
• General-purpose digital logic interfacing in embedded systems

Procurement Notes

Verify the specific ordering suffix matches the required package type and tape/reel specifications. Confirm RoHS compliance status directly with the manufacturer or authorized distributor documentation. Ensure the component lot date code aligns with project requirements. Validate that the intended application does not fall under the restricted unintended use categories defined in the datasheet restrictions section.

Selection Notes

Select this component when a quad 2-input AND gate is required in a surface-mount SOIC-14 package. It is suitable for designs needing CMOS-level compatibility with wide voltage flexibility. Consider the 6 ns typical propagation delay for timing-critical paths. Verify that the 5.2 mA output drive capability meets the load requirements of the connected circuitry.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices manufactured by Toshiba Semiconductor and Storage. The 74HC08D specifically implements four independent AND gates in a single integrated circuit. It serves as a fundamental building block for complex digital logic functions, offering a balance between speed and power efficiency compared to older logic families.

Replacement Considerations

Direct pin-compatible substitutes include the SN74HC08N (Texas Instruments) and CD74HC08E (Texas Instruments). These alternatives maintain the same logical function and electrical characteristics but may differ in packaging options or specific parameter tolerances. Verify cross-manufacturer datasheets for exact matching before substitution.