Products > Integrated Circuits (ICs) > 74HC191D
74HC191D SOIC-16
  • 74HC191D
  • 74HC191D 1
  • 74HC191D 2
Images are for reference only.

74HC191D

Hot Sale

Presettable synchronous 4-bit binary up/down counter

Manufacturer :
Texas Instruments, Inc
Package/Case :
SOIC-16
Product Categories :
Counters
Datasheet:
74HC191D PDF
RoHs Status:
Lead free / RoHS Compliant
In-stock:
6800
  • Price:$ 0.8200
  • In-stock :6800
    • Quantity Unite Price
    • 1-9 $ 0.8200
    • 10-49 $ 0.8000
    • 50-99 $ 0.7800
    • >=100 $ 0.7600

Request for Quotation

Warm Tips: Please fill out the below form and we will contact you as soon as possible.

* Buy Quantity Target Price  (USD)
* Contact Name Country
* E-mail
Phone
Company
Content
 

74HC191D Product Details

·Wide Operating Voltage Range of2V to 6V
·Outputs Can Drive Up To 10 LSTTL Loads
·Low Power Consumption,80-uA Max lcc
·Typical tpd=13 ns
·±4-mA Output Drive at 5V
·Low Input Current of 1 uA Max
·Single Down/Up Count-Control Line
·Look-Ahead Circuitry Enhances Speed of Cascaded Counters
·Fully Synchronous in Count Modes
·Asynchronously Presettable With Load Control

description/ordering information

The HC191 devices are 4-bit synchronous, reversible, up/down binary counters.Synchronous counting operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when instructed by the steering logic. This mode of operation eliminates the output counting spikes normally associated with asynchronous
(ripple-clock) counters.
The outputs of the four flip-flops are triggered on a low-to high-level transition of the clock(CLK)input if the count-enable (CTEN) input is low.A high at CTEN inhibits counting. The direction of the count is determined by the level of the down/up(D/U) input. When D/U is low, the counter counts up, and when D/U is high, it counts down.

description/ordering information(continued)
These counters feature a fully independent clock circuit. Change at the control (CTEN and D/) inputs that modifies the operating mode have no effect on the contents of the counter until clocking occurs. The function of the counter is dictated solely by the condition meeting the stable setup and hold times.
These counters are fully programmable; that is, each of the outputs can be preset to either level by placing alow on the load(LOAD) input and entering the desired data at the data inputs. The output changes to agree with the data inputs independenty of the level of CLK. This feature allows the counters to be used as modulo-N dividers simply by modifying the count length with the preset inputs.
Two outputs are available to perform the cascading function: ripple clock (RCO) and maximum/minimum
(MAX/MIN) count. MAX/MIN produces a high-level output pulse with a duration approximately equal to one complete cycle of the clock while the count is zero(all outputs low) counting down, or maximum (9 or 15)
counting up. RCO produces a low-level output pulse under those same conditions, but only while CLK is low.
The counters can be cascaded easily by feeding RCO to CTEN of the succeeding counter if parallel clocking is used, or to CLK if parallel enabling is used. MAX/MIN can be used to accomplish look ahead for high-speed operation.

Feature

  • Synchronous reversible counting
  • Count enable control for synchronous expansion
  • Single up/down control input
  • Standard Output capability
  • ICC Category

74HC191D Pinout
(Picture: Pinout)

74HC191D Block Diagram
(Picture: Diagram)

Technical Parameters

Manufacturer TI RoHs Status Lead free / RoHS Compliant
Packing Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube Package/Case SOIC-16

74HC191D Related Products

Ratings and Reviews (1)

  • 5 / 5
  • 5 Stars 100%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • ****cato vitt*****
    2020-03-28

    Tutto Ok. Spedizione perfetta.

Reviews
  • Ratings
  • Please rate the product!
Payment:
Payment
Shipping:
Shipping More
Estimated Delivery Time: Jan 31 - Feb 05 days (choose Expedited at checkout).

Shipping & Payment

Shipping

Shipping Type Ship Fee Lead Time
DHL

$20.00-$40.00 (0.50 KG)

2-5 days
Fedex

$20.00-$40.00 (0.50 KG)

3-7 days
UPS

$20.00-$45.00 (0.50 KG)

2-5 days
TNT

$25.00-$65.00 (0.50 KG)

2-5 days
EMS

$25.00-$45.00 (0.50 KG)

5-14 days
REGISTERED AIR MAIL

$2.00-$3.00 (0.10 KG)

7-30 days

Processing Time:Shipping fee depend on different zone and country.


Payment

Terms of payment Hand Fee Payment Site
Wire Transfer

charge US$30.00 banking fee.

Paypal

charge 4.0% service fee.

https://www.paypal.com/
Credit Card

charge 3.5% service fee.

Western Union

charge US$0.00 banking fee.

https://www.westernunion.com/
Money Gram

charge US$0.00 banking fee.

http://global.moneygram.com/

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.

Packing

  • Step1:Product

    Step1:Product

  • Step2:Vacuum packaging

    Step2:Vacuum packaging

  • Step3:Anti-static bag

    Step3:Anti-static bag

  • Step4:Individual packaging

    Step4:Individual packaging

  • Step5:Packaging boxes

    Step5:Packaging boxes

  • Step6:bar-code shipping tag

    Step6:bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Guarantees

1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.

FAQ:

Q: How does Jotrin guarantee that 74HC191D is the original manufacturer or agent of TI?
We have a professional business development department to strictly test and verify the qualifications of TI original manufacturers and agents. All TI suppliers must pass the qualification review before they can publish their 74HC191D devices; we pay more attention to the channels and quality of 74HC191D products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of 74HC191D chips? Including TI original factory information, Counters application, 74HC191D pictures?
You can use Jotrin's intelligent search engine, or filter by Counters category, or find it through Texas Instruments, Inc Information page.
Q: Are the TI's 74HC191D price and stock displayed on the platform accurate?
The TI's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for 74HC191D, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of 74HC191D?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the 74HC191D we delivered, we will accept the replacement or return of the 74HC191D only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of 74HC191D.
(3)The 74HC191D is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as 74HC191D datasheet pdf, 74HC191D pin diagram?
Need any After-Sales service, please feel free contact us: sales@jotrin.com

Texas Instruments, Inc

TI
Texas Instruments Incorporated designs and manufactures analog technologies, digital signal processing (DSP) and microcontroller (MCU) semiconductors. TI is a leader in semiconductor solutions for ana...
  • 74HC165D,653
    74HC165D,653 8-bit parallel-in/serial-out shift register - Description: 8-Bit Parallel-In/Serial-Out Shift Register ; Fmax: 56 MHz; Logic switching levels: CMOS ; Output drive capability: +/- 5.2 mA ; Power dissipation considerations: Low Power or Battery Applica,Counter Shift Registers 8-BIT S/PI-SO SHIFT REGISTER
  • 74HC166N
    74HC166N 8-bit parallel-in/serial-out shift register,DAC (D/A Converters) 8-BIT S/PI-SO SHIFT REG 3-S
  • 74HC174D
    74HC174D Hex D-type flip-flop with reset; positive-edge trigger,Flip Flops HEX D F-F POS-EDGE W/RESET
  • 74HC165PW
    74HC165PW 8-bit parallel-in/serial-out shift register,Counter Shift Registers 8-BIT SHIFT REGISTER
  • 74HC166D
    74HC166D Shift Register Single 8-Bit Serial/Parallel to Serial 16-Pin SOIC T/R
  • 74HC175D
    74HC175D Flip Flop D-Type Bus Interface Pos-Edge 1-Element 16-Pin SO Bulk

Certificates & Honor

Certificates & Honor