SN74ALS666NT The Texas Instruments SN74ALS666NT is an 8-bit D-type transparent latch designed for bus-structured applications. It offers 3-state outputs and read-back capabilities.
Mfr Part #:

SN74ALS666NT

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments SN74ALS666NT is an 8-bit D-type transparent latch designed for bus-structured applications. It offers 3-state outputs and read-back capabilities.
✓ Total Stock: 8,867 pcs
$ Price Range: $1.22

SN74ALS666NT Available from 2 distributors

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SN74ALS666NT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Circuit
Current
Delay Time
Independent Circuits
Logic Type
Mounting Type
Operating Temperature
Output Type
Supplier Device Package
Voltage

SN74ALS666NT Description

Short technical summary and product information.

The SN74ALS666NT from Texas Instruments is an 8-bit D-type transparent latch featuring 3-state outputs and read-back functionality. This device is designed for efficient storage of input data bus contents and allows for reading the stored data back onto the bus.

 

Key electrical characteristics include an operating voltage range of 4.5V to 5.5V and a propagation delay of 6ns. The output current is rated at 400µA for high output and 8mA for low output. It operates reliably within a temperature range of 0°C to 70°C.

 

Designed for bus-structured applications, the SN74ALS666NT utilizes a bus-structured pinout. The latch enable (LE) input controls data flow, while output enable (OE1, OE2) inputs manage the 3-state buffer output. A read-back control (OERB) input allows data from the latch output to be passed back to the input data bus.

 

This component is available in a 24-pin Dual In-line Package (DIP) with a standard 0.300-inch lead spacing, suitable for through-hole mounting. The logic type is a D-Type Transparent Latch, with one independent circuit configured as 8:8.

SN74ALS666NT Quick Information

Product Type: Latch
Series: 74ALS
Canonical Name: SN74ALS666NT 8-Bit D-Type Transparent Read-Back Latch with 3-State Outputs
Subcategory: Logic Latches

SN74ALS666NT Compliance

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

SN74ALS666NT Estimated Pricing

Qty Low High
1+ $1.22 $1.22

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

SN74ALS666NT Features

  • 8-bit D-type transparent latch
  • 3-state outputs with read-back
  • 4.5V to 5.5V operating voltage
  • 6ns propagation delay
  • 0°C to 70°C operating temperature

SN74ALS666NT Applications

  • Used in data storage and transfer.
  • Ideal for microprocessor interfacing.
  • Suitable for address latching.
  • Works in bus-oriented systems.

SN74ALS666NT FAQs

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

4.5V to 5.5V.

What is the propagation delay?

6ns.

What is the operating temperature range?

0°C to 70°C.

What is the package type?

24-DIP (0.300", 7.62mm).

What is the output type?

Tri-State.

What is the logic type?

D-Type Transparent Latch.

What is the circuit configuration?

8:8 (8 inputs, 8 outputs).

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