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  • SN74LS191DR

SN74LS191DR

1 Element 5V TTL DUAL Counters & Dividers 74LS Series 74LS191 16 Pins Up, Down Positive Edge 16-SOIC (0.154, 3.90mm Width)


  • Manufacturer: Texas Instruments
  • Origchip NO: 815-SN74LS191DR
  • Package: 16-SOIC (0.154, 3.90mm Width)
  • Datasheet: -
  • Stock: 268
  • Description: 1 Element 5V TTL DUAL Counters & Dividers 74LS Series 74LS191 16 Pins Up, Down Positive Edge 16-SOIC (0.154, 3.90mm Width)(Kg)

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Details

Tags

Parameters
Factory Lead Time 6 Weeks
Lifecycle Status ACTIVE (Last Updated: 5 days ago)
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 16-SOIC (0.154, 3.90mm Width)
Number of Pins 16
Weight 141.690917mg
Operating Temperature 0°C~70°C
Packaging Tape & Reel (TR)
Series 74LS
JESD-609 Code e4
Pbfree Code yes
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 16
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Additional Feature TCO OUTPUT
Packing Method TR
Technology TTL
Voltage - Supply 4.75V~5.25V
Terminal Position DUAL
Terminal Form GULL WING
Peak Reflow Temperature (Cel) 260
Number of Functions 1
Supply Voltage 5V
Frequency 25MHz
Base Part Number 74LS191
Pin Count 16
Operating Supply Voltage 5V
Number of Elements 1
Power Supplies 5V
Propagation Delay 52 ns
Turn On Delay Time 52 ns
Family LS
Logic Function Counter
Direction Up, Down
Logic Type Binary Counter
Number of Bits per Element 4
Trigger Type Positive Edge
fmax-Min 20 MHz
Clock Edge Trigger Type Positive Edge
Load/Preset Input YES
Timing Synchronous
Height 1.75mm
Length 9.9mm
Width 3.91mm
Thickness 1.58mm
Radiation Hardening No
RoHS Status ROHS3 Compliant
Lead Free Contains Lead

SN74LS191DR Overview


A device of this type is supplied in a package of type [0]. There are 16terminations used for configuring it. Having a supply voltage of 5V enables to operate in a fully flexible manner. The 1elements are connected by wires. All component pins are equal to 16. As [0], it is packaged. There are 16 pins going on to connect other parts in the circuit. The Surface Mountway is used to mount it. It is included in the LSfamily. Due to the fact that it is a member of the 74LSseries, it has a wide range of applications. Logic type Binary Counter is adopted. Ideally, the operating temperature should be set to 0°C~70°C. This device is mounted in the Surface Mountposition. As long as the supply voltage is set to [0], the device can operate with a greater degree of reliability. There are 4 bits stored in each element of the array. As far as Pbfree code is concerned, the result may be yes. This electronic device is equipped with the following features [0]. It should be noted that there are more related parts under the 74LS191base part number. In order to package it, TRis employed. As a result of the voltage source, there is 5V voltage. The device operates on a supply voltage of [0]. In this case, the frequency is 25MHz Hz.

SN74LS191DR Features


Embedded in the 16-SOIC (0.154, 3.90mm Width) package
4 bits per element
TCO OUTPUT
Operating supply voltage of 5V
Frequency of 25MHz

SN74LS191DR Applications


There are a lot of Texas Instruments SN74LS191DR Counters & Dividers applications.

  • Fixed and programmable counters greater than 10
  • Analog multiplexing and demultiplexing
  • POWER COMPUTATION
  • Frequency division
  • Dual Up Counters
  • Counter control/timers
  • SQUARE ROOT
  • Time delay circuits
  • Decade counter/decimal decode display (CD4017B）
  • Time-delay circuits