Datasheets
SN74LS191D by:

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

Part Details for SN74LS191D by Texas Instruments

Overview of SN74LS191D by Texas Instruments

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Applications Education and Research Space Technology Aerospace and Defense Automotive

Price & Stock for SN74LS191D

Part # Distributor Description Stock Price Buy
DISTI # 296-33974-5-ND
DigiKey IC BINARY COUNTER 4-BIT 16SOIC Min Qty: 1 Lead time: 6 Weeks Container: Tube 308
In Stock
  • 1 $1.4400
  • 10 $1.2840
  • 40 $1.2188
  • 120 $1.0012
  • 280 $0.9359
$0.9359 / $1.4400 Buy Now
Bristol Electronics   Min Qty: 6 10
  • 6 $0.9375
$0.9375 Buy Now
Quest Components Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, SOP 100
  • 1 $0.7500
  • 8 $0.6250
  • 33 $0.5000
$0.5000 / $0.7500 Buy Now
Quest Components Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, SOP 250
  • 1 $1.2500
  • 21 $0.7500
  • 81 $0.6250
$0.6250 / $1.2500 Buy Now
Quest Components Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, SOP 8
  • 1 $1.2500
  • 5 $1.0000
$1.0000 / $1.2500 Buy Now
Rochester Electronics 74LS191 - Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control RoHS: Compliant Status: End of Life / Last Time Buy Min Qty: 1 14027
  • 1 $0.6285
  • 25 $0.6159
  • 100 $0.5908
  • 500 $0.5657
  • 1,000 $0.5342
$0.5342 / $0.6285 Buy Now
Chip 1 Exchange INSTOCK 164
RFQ
Component Electronics, Inc IN STOCK SHIP TODAY 2200
  • 1 $0.7700
  • 100 $0.5800
  • 1,000 $0.5000
$0.5000 / $0.7700 Buy Now

Part Details for SN74LS191D

SN74LS191D CAD Models

SN74LS191D Part Data Attributes:

SN74LS191D Texas Instruments
Buy Now Datasheet
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SN74LS191D Texas Instruments Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control 16-SOIC 0 to 70
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Obsolete
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SOIC
Package Description SOP-16
Pin Count 16
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Additional Feature TCO OUTPUT
Count Direction BIDIRECTIONAL
Family LS
JESD-30 Code R-PDSO-G16
JESD-609 Code e4
Length 9.9 mm
Load Capacitance (CL) 15 pF
Load/Preset Input YES
Logic IC Type BINARY COUNTER
Max Frequency@Nom-Sup 20000000 Hz
Max I(ol) 0.016 A
Mode of Operation SYNCHRONOUS
Moisture Sensitivity Level 1
Number of Bits 4
Number of Functions 1
Number of Terminals 16
Operating Temperature-Max 70 °C
Operating Temperature-Min
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP16,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Packing Method TUBE
Peak Reflow Temperature (Cel) 260
Power Supply Current-Max (ICC) 35 mA
Prop. Delay@Nom-Sup 52 ns
Propagation Delay (tpd) 36 ns
Qualification Status Not Qualified
Seated Height-Max 1.75 mm
Supply Voltage-Max (Vsup) 5.25 V
Supply Voltage-Min (Vsup) 4.75 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount YES
Technology TTL
Temperature Grade COMMERCIAL
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Trigger Type POSITIVE EDGE
Width 3.9 mm
fmax-Min 20 MHz

Alternate Parts for SN74LS191D

This table gives cross-reference parts and alternative options found for SN74LS191D. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of SN74LS191D, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Description Manufacturer Compare
DM74LS191M LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, PLASTIC, SOP-16 Texas Instruments SN74LS191D vs DM74LS191M
DM74LS191M IC LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, PLASTIC, SOP-16, Counter National Semiconductor Corporation SN74LS191D vs DM74LS191M
T74LS191M1 LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, MICRO, SO-16 STMicroelectronics SN74LS191D vs T74LS191M1
SN74LS191DRE4 LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, SOP-16 Texas Instruments SN74LS191D vs SN74LS191DRE4
SN74LS191DRG4 LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, SOP-16 Texas Instruments SN74LS191D vs SN74LS191DRG4
SN74LS191DE4 Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control 16-SOIC 0 to 70 Texas Instruments SN74LS191D vs SN74LS191DE4
Part Number Description Manufacturer Compare
JM38510/31509B2A Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, CQCC20, CERAMIC, LCC-20 Motorola Semiconductor Products SN74LS191D vs JM38510/31509B2A
DM74LS191M LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, PLASTIC, SOP-16 Texas Instruments SN74LS191D vs DM74LS191M
S54LS191F Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, CDIP16, CERAMIC, DIP-16 Signetics SN74LS191D vs S54LS191F
M38510/31509BEB Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, CDIP16, CERAMIC, DIP-16 Signetics SN74LS191D vs M38510/31509BEB
SN54LS191JD Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, CDIP16, CERAMIC, DIP-16 Motorola Semiconductor Products SN74LS191D vs SN54LS191JD
T74LS191B1 LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDIP16, PLASTIC, DIP-16 STMicroelectronics SN74LS191D vs T74LS191B1
SN74LS191ND Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, PDIP16, PLASTIC, DIP-16 Motorola Semiconductor Products SN74LS191D vs SN74LS191ND
JM38510/31509B2A LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CQCC20, CERAMIC, LCC-20 Motorola Mobility LLC SN74LS191D vs JM38510/31509B2A
SN74LS191JDS LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CDIP16, CERAMIC, DIP-16 Motorola Mobility LLC SN74LS191D vs SN74LS191JDS
DM74LS191N IC LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDIP16, PLASTIC, DIP-16, Counter National Semiconductor Corporation SN74LS191D vs DM74LS191N

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