74AHCT1G08W5-7

Overview

The 74AHCT1G08W5-7 is a single 2-input positive AND gate from the 74AHCT logic family, manufactured by Diodes Incorporated. It operates within a supply voltage range of 4.5V to 5.5V and features a standard totem pole output capable of ±8 mA drive current at 5.0V. The device utilizes Schmitt trigger inputs to tolerate slower input rise and fall times. It is housed in an SOT-25 package with five pins and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Schmitt trigger action at all inputs for tolerance to slower input transition rates
• ESD protection exceeding 200-V machine model, 2000-V human body model, and 1000-V charged device model
• Latch-up performance exceeds 100mA per JESD 78, Class II
• Assembled with green molding compound free of bromine and antimony

Applications

• General purpose logic circuits
• PCs, networking equipment, notebooks, and netbooks
• Computer peripherals including hard drives and CD/DVD ROMs
• TV, DVD, DVR, and set-top boxes
• Phones, personal navigation/GPS devices, MP3 players, cameras, and video recorders

Procurement Notes

Verify that the component matches the specific W5 suffix indicating the SOT-25 package configuration. Confirm compliance with RoHS directives and lead-free finish requirements as specified in the datasheet notes. Ensure the ordering quantity aligns with the standard tape and reel packaging format of 3000 units per reel. Validate that the application environment remains within the recommended operating conditions for voltage and temperature.

Selection Notes

Select this component when TTL-compatible input levels are required alongside CMOS low power consumption characteristics. The AHCT series ensures compatibility with standard 5V logic systems while providing robust noise immunity through Schmitt trigger inputs. Consider the SOT-25 package for space-constrained surface-mount designs requiring a single two-input AND function with high ESD protection ratings.

Part Context

This part belongs to the 74AHCT1G series of single-gate logic ICs produced by Diodes Incorporated under the 74AHCT family designation. The '1G' indicates a single gate configuration, while '08' specifies the AND gate function. The 'W5' suffix denotes the SOT-25 package type, distinguishing it from other available packages like SOT-353. This series is designed for general-purpose digital applications requiring reliable operation across wide industrial temperature ranges.

Replacement Considerations

The 74AHCT1G08SE-7 serves as a direct functional substitute utilizing the SOT-353 package instead of SOT-25. Both parts share identical electrical specifications and logical functions within the 74AHCT family. Verify pinout compatibility and physical footprint differences before substituting the SE variant for the W5 version in existing PCB layouts.

FAQ

What is the maximum propagation delay for the 74AHCT1G08W5-7?

The maximum propagation delay is 10.5 ns when measured with a 50 pF load capacitance at an operating temperature range of -40°C to 125°C.

Does the 74AHCT1G08W5-7 support partial power-down mode?

No, the datasheet does not list I_OFF circuitry or partial power-down support for the 74AHCT1G08. This feature is typically associated with the 74LVC1G series.

What is the input voltage tolerance for unused inputs?

Unused inputs should be held at VCC or Ground to prevent undefined states. The absolute maximum input voltage rating is 6.5 V, but normal operation limits the input voltage to the supply rail range of 4.5V to 5.5V.