SN74HCS21DR The Texas Instruments SN74HCS21DR is a dual 4-input AND gate with Schmitt-trigger inputs. It operates over a wide voltage range and is available in a SOIC-14 package.
Mfr Part #:

SN74HCS21DR

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments SN74HCS21DR is a dual 4-input AND gate with Schmitt-trigger inputs. It operates over a wide voltage range and is available in a SOIC-14 package.
✓ Total Stock: 5,889 pcs
$ Price Range: $0.22

SN74HCS21DR Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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5,889 pcs
5889 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16

SN74HCS21DR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Features
Input Logic Level
Logic Type
Max Propagation Delay @ V, Max CL
Mounting Type
Number of Circuits
Number of Inputs
Operating Temperature
SVHC Present
Supplier Device Package
Supply Current
Voltage

SN74HCS21DR Description

Short technical summary and product information.

The SN74HCS21DR from Texas Instruments is a dual 4-input AND gate integrated circuit. Each gate within the device performs the Boolean function Y = A ● B ● C ● D in positive logic. This component is designed with Schmitt-trigger inputs, which allows for tolerance to slow or noisy input signals, enhancing reliability in various applications.

 

Key electrical characteristics include a wide operating voltage range from 2V to 6V. The device exhibits low power consumption, with a typical supply current (ICC) of 100 nA and a typical input leakage current of ±100 nA. It provides an output drive of ±7.8 mA at 5V. The maximum propagation delay is specified at 16 ns at 6V with a 50 pF load capacitance.

 

The SN74HCS21DR operates within an extended ambient temperature range of -40°C to +125°C. It is housed in a 14-SOIC package with dimensions of 8.70 mm × 3.90 mm, suitable for surface mounting. This logic gate is well-suited for applications such as combining power good signals or enabling digital signals where robust input handling is required.

SN74HCS21DR Quick Information

Product Type: Logic Gate
Series: 74HCS
Canonical Name: Texas Instruments SN74HCS21DR Dual 4-Input AND Gate with Schmitt-Trigger Inputs
Subcategory: AND Gate

SN74HCS21DR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SN74HCS21DR Estimated Pricing

Qty Low High
1+ $0.22 $0.22

Estimated market price range - modelled values for guidance only, not live distributor offers.

SN74HCS21DR Features

  • Dual 4-input AND gates
  • Schmitt-trigger inputs for noise immunity
  • Wide 2V to 6V operating voltage range
  • Low power consumption: 100nA typical ICC
  • 14-SOIC surface mount package

SN74HCS21DR Applications

  • Combining power good signals
  • Enabling digital signals
  • Applications requiring signal conditioning
  • Systems with noisy input signals

SN74HCS21DR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the SN74HCS21DR?

The SN74HCS21DR operates over a wide voltage range from 2V to 6V.

What is the typical supply current of the SN74HCS21DR?

The typical supply current (ICC) for the SN74HCS21DR is 100 nA.

What is the maximum propagation delay for the SN74HCS21DR?

The maximum propagation delay is 16ns at 6V with a 50pF load.

What type of inputs does the SN74HCS21DR feature?

The SN74HCS21DR features Schmitt-trigger inputs.

What package is the SN74HCS21DR supplied in?

The SN74HCS21DR is supplied in a 14-SOIC package.

What is the operating temperature range for the SN74HCS21DR?

The operating temperature range for the SN74HCS21DR is -40°C to +125°C.

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