SN74LS161ADR The SN74LS161ADR from Texas Instruments is a 4-bit synchronous binary counter. It features a surface mount 16-SOIC package and operates within a voltage range of 4.75V to 5.25V.
Mfr Part #:

SN74LS161ADR

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The SN74LS161ADR from Texas Instruments is a 4-bit synchronous binary counter. It features a surface mount 16-SOIC package and operates within a voltage range of 4.75V to 5.25V.
✓ Total Stock: 45,200 pcs
$ Price Range: $0.32

SN74LS161ADR Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
45,200 pcs
45200 pcs On Request 1 On Request On Request On Request On Request On Request

SN74LS161ADR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Count Rate
Direction
Features
Function
Input Type
Logic Type
Mounting Type
Number of Bits per Element
Number of Elements
Operating Temperature
Output Type
Reset
SVHC Present
Supplier Device Package
Timing
Trigger Type
Voltage

SN74LS161ADR Description

Short technical summary and product information.

The Texas Instruments SN74LS161ADR is a synchronous, presettable 4-bit binary counter designed for high-speed counting applications. It utilizes LS technology with bipolar inputs and push-pull outputs.

 

This counter features internal carry look-ahead for fast counting and a carry output for n-bit cascading. It operates synchronously, meaning all flip-flops are clocked simultaneously, eliminating output counting spikes common in asynchronous counters. The buffered clock input triggers on the rising edge. The device is fully programmable, allowing outputs to be preset to any level synchronously.

 

Packaged in a 16-SOIC (0.154", 3.90mm Width) format, the SN74LS161ADR is designed for surface mounting. It operates within a voltage range of 4.75V to 5.25V and has an operating temperature range of 0°C to 70°C. Its count rate is up to 25 MHz.

 

Key specifications include its 4-bit binary count logic, synchronous timing, and asynchronous reset capability. The high-speed feature with a propagation delay between 10ns and 50ns makes it suitable for various digital logic designs.

SN74LS161ADR Quick Information

Product Type: Binary Counter
Series: 74LS
Canonical Name: SN74LS161ADR Synchronous 4-Bit Binary Counter
Subcategory: Counters

SN74LS161ADR Compliance

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

SN74LS161ADR Estimated Pricing

Qty Low High
1+ $0.32 $0.32

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

SN74LS161ADR Features

  • Synchronous 4-bit binary counter.
  • Internal carry look-ahead for speed.
  • Synchronously programmable load control.
  • Surface mount 16-SOIC package.
  • Operates at 4.75V to 5.25V.

SN74LS161ADR Applications

  • High-speed digital counting designs.
  • Logic circuit frequency division.
  • Digital system timing control.
  • Cascadable for larger counters.

SN74LS161ADR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SN74LS161ADR?

The operating voltage range is 4.75 V to 5.25 V.

What package does the SN74LS161ADR come in?

It comes in a 16-SOIC (0.154", 3.90mm Width) surface-mount package.

What is the operating temperature range?

The operating temperature range is 0°C to 70°C.

What is the count rate of this counter?

The maximum count rate is 25 MHz.

What is the logic type and timing?

It is a 4-bit synchronous binary counter with positive edge triggering.

Does the SN74LS161ADR have a reset function?

Yes, it has an asynchronous reset.

Home

Categories