ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC GATE NOR 4CH 2-INP 14WQFN
- Series：74AHCT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Logic Type：NOR 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：7.5ns @ 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：-
Download product information
Overview
The SN74AHCT02BQAR is a commercial-grade quadruple 2-input positive-NOR gate manufactured by Texas Instruments. It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range from -40°C to +125°C. The device features TTL-compatible CMOS inputs and balanced push-pull outputs capable of ±8mA drive current at 5V. It is housed in a 14-pin WQFN package.
Feature Summary
- Contains four independent 2-input NOR gates performing Boolean logic functions
- Features TTL-compatible CMOS inputs for direct interface with TTL logic devices
- Provides balanced CMOS push-pull outputs for symmetric sourcing and sinking capabilities
Applications
- Enabling or disabling digital signals
- Controlling indicator LEDs
- Translation between communication modules and system controllers
Procurement Notes
Verify the specific BQA suffix corresponds to the WQFN-14 package configuration required for your PCB layout. Confirm that the commercial grade rating (-40°C to +125°C) aligns with your environmental specifications. Ensure input pins are never left floating during operation to prevent undefined states and excessive power consumption.
Selection Notes
Select this component when a quad NOR gate topology is required within a standard 5V logic family. The AHCT series is appropriate for systems needing compatibility with TTL voltage thresholds while utilizing CMOS technology. Consider the WQFN package size constraints and thermal dissipation requirements associated with surface-mount assembly.
Part Context
This part belongs to the SNx4AHCT02 family, which includes various packaging options such as SOIC, SSOP, and PDIP. The BQA suffix specifically designates the WQFN (WQFN-14) package variant. Other members of the family share identical electrical characteristics but differ in physical footprint and pinout configurations suitable for different board space limitations.
Replacement Considerations
SN74AHCT02DBR
FAQ
How should unused inputs be handled?
Unused inputs must not be left floating. They should be terminated to either VCC or GND to prevent undefined operational states and excessive power consumption.
What is the maximum capacitive load recommended?
The device can drive a load with a total capacitance less than or equal to 50pF while still meeting all data sheet specifications.
