Philips 74HC191D Presettable Synchronous Binary Up/Down Counter OM0098

£6.00

125 in stock

SKU: OM0098 Category:

Description

WE ARE RICH ELECTRONICS

WE PURCHASE AND RECYCLE

SURPLUS ELECTRONIC

COMPONENTS AND EQUIPMENT!

For sale here we have the above…

1 Piece

Product Overview

The 74HC191D is a 4-bit synchronous Up/Down Binary Counter 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 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. It features a fully independent clock circuit. Change at the control (CTEN\ and D/U\) inputs that modifies the operating mode has 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.
  • Outputs can drive up to 10 LSTTL loads
  • 13ns Typical tpd
  • Low input current of 1µA Maximum
  • Single down/up count-control line
  • Look-ahead circuitry enhances speed of cascaded counters
  • Fully synchronous in count modes
  • Asynchronously presettable with load control
  • 80µA Maximum low power consumption
  • ±4mA Output drive at 5V
  • Green product and no Sb/Br

Applications

Industrial

Product Information

74HC191
: Binary, Synchronous, Up / Down
: 48MHz
: 16
: SOIC
: 16Pins
: 2V
: 6V
: 74HC
: 74191
: -40°C
: 85°C

For datasheet go to…

https://pdf1.alldatasheet.com/datasheet-pdf/view/15561/PHILIPS/74HC191D.html

PLEASE NOTE!

These parts came to us as part of a lot of surplus stock from a large distribution Co. and have been kept in storage for a time, they are however pristine, stored with us still in their original packaging and ‘as new’ in all respects, the photographs are representative of their excellent condition, and, as with all our products they come with a full guarantee. 

If you have similar items to this, or indeed any electronic components that are surplus to requirements please contact us with details.

 

Additional information

Brand

MPN