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SN74HC21DR is listed in the Inverter Gates range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC GATE AND 2CH 4-INP 14SOIC. Review the specifications below when checking this part for your BOM.
Inverter Gates specifications for SN74HC21DR
- Description：IC GATE AND 2CH 4-INP 14SOIC
- Series：74HC
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Logic Type：AND Gate
- Number of Circuits：2
- Number of Inputs：4
- Features：-
- Voltage - Supply：2V ~ 6V
- Current - Quiescent (Max)：2 µA
- Current - Output High, Low：5.2mA, 5.2mA
- Input Logic Level - Low：0.5V ~ 1.8V
- Input Logic Level - High：1.5V ~ 4.2V
- Max Propagation Delay @ V, Max CL：19ns @ 6V, 50pF
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOIC
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Grade：-
- Qualification：-
Inverter Gates datasheet and documents for SN74HC21DR
Inverter Gates Overview
The SN74HC21DR is a dual 4-input positive-AND gate integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and features output currents of 5.2mA for both high and low states. The device exhibits a maximum propagation delay of 19ns at 6V with a 50pF load. It functions across an operating temperature range of -40°C to 85°C and is housed in a 14-SOIC surface-mount package.
Inverter Gates Feature Summary
- Dual independent 4-input AND logic gates
- High noise immunity compatible with CMOS outputs
- Surface-mount packaging for automated assembly
Inverter Gates Applications
- Digital logic control circuits
- Signal gating applications
- General-purpose logic processing
Inverter Gates Procurement Notes
Verify the specific ordering suffix against official documentation to confirm package type, tape-and-reel specifications, and environmental compliance status. Ensure the component matches the required logic family characteristics and thermal ratings for the intended operational environment before finalizing procurement.
Inverter Gates Selection Notes
Select this component when dual 4-input AND functionality is required in a compact surface-mount form factor. Consider the 2V to 6V supply range and 5.2mA drive capability for compatibility with downstream logic stages. Verify that the 14-SOIC footprint aligns with the target PCB layout constraints.
Inverter Gates Part Context
This part belongs to the standard 74HC series of high-speed CMOS logic devices. It provides industry-standard pinouts and logical operations, facilitating integration into existing digital designs. The DR suffix indicates a specific tape-and-reel packaging configuration suitable for high-volume manufacturing processes.
Inverter Gates Replacement Considerations
Cross-reference with other 74HC21 variants from Texas Instruments or qualified second-source manufacturers. Confirm identical pinout, electrical parameters, and package dimensions to ensure mechanical and functional interchangeability without redesigning the host circuit.
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