Datasheets
SN74LS191NSR by: Texas Instruments

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

Part Details for SN74LS191NSR by Texas Instruments

Overview of SN74LS191NSR by Texas Instruments

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Applications Education and Research Space Technology Aerospace and Defense Automotive

Price & Stock for SN74LS191NSR

Part # Distributor Description Stock Price Buy
DISTI # 2156-SN74LS191NSR-ND
DigiKey IC BINARY COUNTER 4-BIT 16SO Min Qty: 1 Lead time: 12 Weeks Container: Bulk MARKETPLACE PRODUCT 4000
In Stock
  • 521 $0.5800
$0.5800 Buy Now
DISTI # 296-29978-1-ND
DigiKey IC BINARY COUNTER 4-BIT 16SO Min Qty: 1 Lead time: 12 Weeks Container: Cut Tape (CT), Digi-Reel®, Tape & Reel (TR) Temporarily Out of Stock
  • 1 $1.3300
  • 10 $1.1890
  • 25 $1.1284
  • 100 $0.9269
  • 250 $0.8664
  • 500 $0.7657
  • 1,000 $0.6045
  • 2,000 $0.5642
  • 6,000 $0.5360
  • 10,000 $0.5158
$0.5158 / $1.3300 Buy Now
DISTI # 595-SN74LS191NSR
Mouser Electronics Counter ICs 4-Bit Sync Up/Down RoHS: Compliant 3242
  • 1 $1.3300
  • 10 $1.1500
  • 100 $0.8820
  • 500 $0.7660
  • 1,000 $0.6050
  • 2,000 $0.5580
  • 4,000 $0.5350
  • 10,000 $0.5150
$0.5150 / $1.3300 Buy Now
Bristol Electronics   1789
RFQ
Quest Components   1431
  • 1 $1.9785
  • 203 $0.7914
  • 1,012 $0.6925
$0.6925 / $1.9785 Buy Now
Quest Components   5338
  • 1 $2.2000
  • 910 $0.7700
  • 1,949 $0.6600
$0.6600 / $2.2000 Buy Now
Rochester Electronics SN74LS191 Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control RoHS: Compliant Status: Active Min Qty: 1 4000
  • 1 $0.5819
  • 25 $0.5703
  • 100 $0.5470
  • 500 $0.5237
  • 1,000 $0.4946
$0.4946 / $0.5819 Buy Now
Ameya Holding Limited IC SYNC 4-BIT UP/DN CNTR 16SO 4322
RFQ
Chip1Cloud IC SYNC 4-BIT UP/DN CNTR 16SO 1650
RFQ
Perfect Parts Corporation   3520
RFQ

Part Details for SN74LS191NSR

SN74LS191NSR CAD Models

SN74LS191NSR Part Data Attributes

SN74LS191NSR Texas Instruments
Buy Now Datasheet
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SN74LS191NSR Texas Instruments Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control 16-SO 0 to 70
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
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 10.2 mm
Load Capacitance (CL) 15 pF
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,.3
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Packing Method TR
Peak Reflow Temperature (Cel) 260
Power Supply Current-Max (ICC) 105 mA
Prop. Delay@Nom-Sup 52 ns
Propagation Delay (tpd) 36 ns
Qualification Status Not Qualified
Seated Height-Max 2 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 5.3 mm
fmax-Min 20 MHz

Alternate Parts for SN74LS191NSR

This table gives cross-reference parts and alternative options found for SN74LS191NSR. 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 SN74LS191NSR, 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
HD74LS191RP LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, FP-16DN Renesas Electronics Corporation SN74LS191NSR vs HD74LS191RP
SN74LS193NSR Synchronous 4-Bit Up/Down Binary Counters With Dual Clock and Clear 16-SO 0 to 70 Texas Instruments SN74LS191NSR vs SN74LS193NSR
DV74LS193D Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, PDSO16, PLASTIC, SOP-16 avg Semiconductors SN74LS191NSR vs DV74LS193D
HD74LS193RP LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, FP-16DN Renesas Electronics Corporation SN74LS191NSR vs HD74LS193RP
SN74LS193NSRE4 LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, GREEN, PLASTIC, SOP-16 Texas Instruments SN74LS191NSR vs SN74LS193NSRE4
HD74LS193FP LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, FP-16DA Renesas Electronics Corporation SN74LS191NSR vs HD74LS193FP
HD74LS193FP-E LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, FP-16DA Renesas Electronics Corporation SN74LS191NSR vs HD74LS193FP-E
HD74LS191RP-EL LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, FP-16DN Renesas Electronics Corporation SN74LS191NSR vs HD74LS191RP-EL
SN74LS193NSRG4 LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, GREEN, PLASTIC, SOP-16 Texas Instruments SN74LS191NSR vs SN74LS193NSRG4
HD74LS193RPEL LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, 3.95 X 9.90 MM, 1.27 MM PITCH, PLASTIC, SOP-16 Renesas Electronics Corporation SN74LS191NSR vs HD74LS193RPEL
Part Number Description Manufacturer Compare
N74LS191D Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, PDSO16, YAGEO Corporation SN74LS191NSR vs N74LS191D
HD74LS193FP LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, FP-16DA Renesas Electronics Corporation SN74LS191NSR vs HD74LS193FP
HD74LS193RP LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, FP-16DN Renesas Electronics Corporation SN74LS191NSR vs HD74LS193RP
935188600118 Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, CMOS, PDSO16 Nexperia SN74LS191NSR vs 935188600118
HD74HC191FP-E HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, FP-16DA Renesas Electronics Corporation SN74LS191NSR vs HD74HC191FP-E
HD74LS191RP LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, FP-16DN Renesas Electronics Corporation SN74LS191NSR vs HD74LS191RP
935188600112 Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, CMOS, PDSO16 Nexperia SN74LS191NSR vs 935188600112
N74LS193D Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, PDSO16, YAGEO Corporation SN74LS191NSR vs N74LS193D
HD74LS191FP LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, FP-16DA Renesas Electronics Corporation SN74LS191NSR vs HD74LS191FP
TC74HC191AF-EL IC HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, 0.300 INCH, PLASTIC, SOIC-16, Counter Toshiba America Electronic Components SN74LS191NSR vs TC74HC191AF-EL

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