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Product Detailed Parameters
- Description：IC GATE AND 4CH 2-INP 14WQFN
- Series：74AHCT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Logic Type：AND Gate
- Number of Circuits：4
- Number of Inputs：2
- Features：-
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Max)：2 µA
- Current - Output High, Low：8mA, 8mA
- Input Logic Level - Low：0.8V
- Input Logic Level - High：2V
- Max Propagation Delay @ V, Max CL：7.9ns @ 5V, 50pF
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Supplier Device Package：14-WQFN (3x2.5)
- Package / Case：14-WFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The SN74AHCT08BQAR is a quadruple 2-input positive-AND gate in a 14-pin WQFN package. It operates at a supply voltage of 4.5 V to 5.5 V with an operating temperature range of -40°C to 125°C. Propagation delay is typically 6.9 ns at 5V and 15 pF load. Input thresholds are 2 V (high) and 0.8 V (low). Output drive is ±8 mA. ESD protection exceeds 2000 V HBM, 200 V MM, and 1000 V CDM.
Feature Summary
- TTL-voltage compatible inputs allow up translation from 3.3 V to 5 V
- Slow rise and fall times minimize output signal ringing
- High ESD protection performance across multiple testing standards
Applications
- Servers
- Network switches
- PCs and notebooks
- Electronic points-of-sale
Procurement Notes
Verify the BQA suffix corresponds to the WQFN 14-pin package configuration. Confirm the 'R' suffix indicates tape-and-reel packaging containing 3000 units per reel. Ensure the component meets RoHS compliance and Lead-free specifications as listed in the orderable addendum for this specific part number.
Selection Notes
Select this device when TTL logic compatibility is required within a 5 V CMOS system. The slow edge rates make it suitable for bus-interface applications where minimizing overshoot and undershoot is critical. Verify that the 14-pin WQFN footprint fits the PCB layout constraints and thermal requirements.
Part Context
This component belongs to the SNx4AHCT08 family of quadruple 2-input positive-AND gates. It utilizes low-drive CMOS technology to reduce noise. The BQA variant specifically denotes the WQFN package option, distinguishing it from SOIC, SSOP, or other package types available within the same logical family.
Replacement Considerations
SN74AHCT08DR
FAQ
How does the device handle unused inputs?
All unused inputs must be connected to VCC or GND to prevent undefined operational states caused by floating voltages.
What is the input voltage tolerance?
Inputs are overvoltage tolerant, allowing them to accept voltages up to 5.5 V even when VCC is at its minimum rating.
