Texas Instruments SN74LS191N

Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control 16-PDIP 0 to 70
Production

Price and Stock

Authorized Distributors
Non-Authorized Stocking Distributors
Non-Authorized Dealers

Technical Specifications

Physical
Case/PackagePDIP
MountThrough Hole
Number of Pins16
Weight951.693491 mg
Technical
Clock Edge Trigger TypePositive Edge
DirectionBidirectional
Frequency25 MHz
Logic FunctionCounter
Max Operating Temperature70 °C
Max Supply Voltage5.25 V
Min Operating Temperature0 °C
Min Supply Voltage4.75 V
Number of Bits4
Number of Bits per Element4
Number of Elements1
Operating Supply Voltage5 V
Output Current800 µA
Propagation Delay52 ns
Schedule B8542390000
Sync/AsyncSynchronous
Turn-On Delay Time52 ns
Dimensions
Height5.08 mm
Length19.3 mm
Thickness3.9 mm
Width6.35 mm

Documents

Download datasheets and manufacturer documentation for Texas Instruments SN74LS191N.

Texas Instruments
Official datasheet0 pages0 years ago
Datasheet16 pages14 years ago
Datasheet16 pages16 years ago
Technical Drawing2 pages20 years ago
Farnell
Datasheet16 pages10 years ago
Datasheet16 pages15 years ago
Newark
Datasheet16 pages14 years ago
Datasheet16 pages14 years ago
Datasheet16 pages14 years ago
Datasheet14 pages24 years ago
SHENGYU ELECTRONICS
Datasheet17 pages2 years ago
Rochester Electronics
Datasheet15 pages10 years ago
iiiC
Datasheet16 pages11 years ago
Mouser
Datasheet16 pages16 years ago
Jameco
Datasheet15 pages16 years ago
RS (Formerly Allied Electronics)
Datasheet8 pages24 years ago
DigiKey
Datasheet14 pages24 years ago
Sierra IC
Datasheet10 pages0 years ago

Inventory History

3 month trend:
-38.56%

Alternate Parts

Price @ 1000
$ 0.572
$ 10.02
Stock
310,239
12,661
Authorized Distributors
4
2
Case/Package
PDIP
CDIP
Number of Pins
16
16
Logic Function
Counter
Counter
Direction
Bidirectional
Bidirectional
Number of Elements
1
1
Number of Bits per Element
4
-
Reset
-
-
Clock Edge Trigger Type
Positive Edge
-
Frequency
25 MHz
-
Min Supply Voltage
4.75 V
4.5 V
Max Supply Voltage
5.25 V
5.5 V

Supply Chain

Lifecycle StatusProduction (Last Updated: 18 hours ago)
Manufacturer Lifecycle StatusACTIVE (Last Updated: 18 hours ago)

Engineering Resources

View Evaluation kits and Reference designs for Texas Instruments SN74LS191N.

Related Parts

Descriptions

Descriptions of Texas Instruments SN74LS191N provided by its distributors.

Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control 16-PDIP 0 to 70
Counter Single 4-Bit Async Binary UP/Down 16-Pin PDIP Tube
IC, COUNTER/MULTIPLIER/DIVIDER; Famille Logique/ Numéro de base: 74LS191; Type de compteur: Binaire, progressif / dégressif; Fréquence, horloge: 25MHz; Comptage max: 15; Type de boîtier CI logique: DIP; Nombre de broches: 16Br
IC, COUNTER/MULTIPLIER/DIVIDER; Logic Family / Base Number:74LS191; Counter Type:Binary, Up / Down; Clock Frequency:25MHz; Count Maximum:15; Logic Case Style:DIP; No. of Pins:16Pins; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V; Logic IC Family:74LS; Logic IC Base Number:74191; Operating Temperature Min:0°C; Operating Temperature Max:70°C; Product Range:-; MSL:-; SVHC:No SVHC (15-Jan-2019); Base Number:74191; Logic Function Number:74191; Logic IC Base Number:74191; Logic IC Function:Synchronous 4bit Up/Down Counter with Up/Down Mode Control; Operating Temperature Range:0°C to +70°C; Supply Voltage Range:4.75V to 5.25V; Termination Type:Through Hole

Manufacturer Aliases

Texas Instruments has several brands around the world that distributors may use as alternate names. Texas Instruments may also be known as the following names:

  • TI
  • TEXAS
  • TEXAS INST
  • TEXAS INSTR
  • TEXAS INSTRUMENT
  • TEXAS INS
  • TEXAS INSTRUMENTS INC
  • TEXAS INSTRU
  • TEXAS INSTRUMEN
  • TI/NS
  • TEX
  • Texas Instruments (TI)
  • TEXASIN
  • TEXAS INSTRUMENTS INCORPORATED
  • TEXINS
  • TEXAS INTRUMENTS
  • TEAXS
  • TEXASI
  • TEXAS INSTRUM
  • TI Texas Instruments
  • TEXAS USD
  • TEXAS INSRUMENTS
  • TEXAS INSRUMENT
  • TEXAS INSTUMENTS
  • TEXAS INTRUMENT
  • Texas Instr.
  • Texas Instruments Inc.

Part Number Aliases

This part may be known by these alternate part numbers:

  • SN74LS191 N
  • SN74LS191N .
  • SN74LS191N.
  • SN74LS191N..

Technical Specifications

Physical
Case/PackagePDIP
MountThrough Hole
Number of Pins16
Weight951.693491 mg
Technical
Clock Edge Trigger TypePositive Edge
DirectionBidirectional
Frequency25 MHz
Logic FunctionCounter
Max Operating Temperature70 °C
Max Supply Voltage5.25 V
Min Operating Temperature0 °C
Min Supply Voltage4.75 V
Number of Bits4
Number of Bits per Element4
Number of Elements1
Operating Supply Voltage5 V
Output Current800 µA
Propagation Delay52 ns
Schedule B8542390000
Sync/AsyncSynchronous
Turn-On Delay Time52 ns
Dimensions
Height5.08 mm
Length19.3 mm
Thickness3.9 mm
Width6.35 mm

Documents

Download datasheets and manufacturer documentation for Texas Instruments SN74LS191N.

Texas Instruments
Official datasheet0 pages0 years ago
Datasheet16 pages14 years ago
Datasheet16 pages16 years ago
Technical Drawing2 pages20 years ago
Farnell
Datasheet16 pages10 years ago
Datasheet16 pages15 years ago
Newark
Datasheet16 pages14 years ago
Datasheet16 pages14 years ago
Datasheet16 pages14 years ago
Datasheet14 pages24 years ago
SHENGYU ELECTRONICS
Datasheet17 pages2 years ago
Rochester Electronics
Datasheet15 pages10 years ago
iiiC
Datasheet16 pages11 years ago
Mouser
Datasheet16 pages16 years ago
Jameco
Datasheet15 pages16 years ago
RS (Formerly Allied Electronics)
Datasheet8 pages24 years ago
DigiKey
Datasheet14 pages24 years ago
Sierra IC
Datasheet10 pages0 years ago

Compliance

Environmental Classification
Lead FreeContains Lead
Radiation HardeningNo
REACH SVHCNo SVHC
RoHSCompliant
Compliance Statements
Conflict Mineral Statement2 pages11 years ago
Reach Statement7 pages10 years ago