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Logic / Counters / SN74HC161NSR
Datasheets
SN74HC161NSR by:
Texas Instruments
Rochester Electronics LLC
Texas Instruments
Not Found

4-Bit Synchronous Binary Counters 16-SOP -40 to 85

Part Details for SN74HC161NSR by Texas Instruments

Results Overview of SN74HC161NSR by Texas Instruments

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Education and Research Space Technology Computing and Data Storage Aerospace and Defense Automotive

SN74HC161NSR Information

SN74HC161NSR by Texas Instruments is a Counter.
Counters are under the broader part category of Logic Components.

Digital logic governs the behavior of signals in electronic circuits, enabling complex decisions based on simple binary inputs (yes/no). Logic components perform operations from these signals. Read more about Logic Components on our Logic part category page.

Available Datasheets

Part # Manufacturer Description Datasheet
SN74HC161NSR Texas Instruments 4-Bit Synchronous Binary Counters 16-SO -40 to 85

Price & Stock for SN74HC161NSR

Part # Distributor Description Stock Price Buy
DISTI # 2156-SN74HC161NSR-ND
DigiKey IC BINARY COUNTER 4-BIT 16SO Min Qty: 1 Lead time: 6 Weeks Container: Bulk MARKETPLACE PRODUCT 6000
In Stock
  • 1,174 $0.2600
$0.2600 Buy Now
DISTI # 296-SN74HC161NSRCT-ND
DigiKey IC BINARY COUNTER 4-BIT 16SO Min Qty: 1 Lead time: 6 Weeks Container: Cut Tape (CT), Digi-Reel®, Tape & Reel (TR) 783
In Stock
  • 1 $0.6200
  • 10 $0.4370
  • 25 $0.3912
  • 100 $0.3414
  • 250 $0.3176
  • 500 $0.3033
  • 1,000 $0.2915
  • 2,000 $0.2818
  • 4,000 $0.2738
  • 6,000 $0.2698
  • 10,000 $0.2654
  • 14,000 $0.2628
  • 20,000 $0.2603
$0.2603 / $0.6200 Buy Now
DISTI # 595-SN74HC161NSR
Mouser Electronics Counter ICs 4-Bit Synchronous Bi nary Counters RoHS: Compliant 225
  • 1 $0.6200
  • 10 $0.4370
  • 25 $0.3920
  • 100 $0.3420
  • 250 $0.3040
  • 1,000 $0.2920
  • 2,000 $0.2690
  • 10,000 $0.2540
  • 20,000 $0.2510
$0.2510 / $0.6200 Buy Now
Quest Components   392
  • 1 $0.9000
  • 29 $0.5400
  • 112 $0.4500
$0.4500 / $0.9000 Buy Now
Rochester Electronics SN74HC161 4-Bit Synchronous Binary Counters RoHS: Compliant Status: Active Min Qty: 1 6000
  • 1 $0.2458
  • 25 $0.2409
  • 100 $0.2311
  • 500 $0.2212
  • 1,000 $0.2089
$0.2089 / $0.2458 Buy Now

Part Details for SN74HC161NSR

SN74HC161NSR CAD Models

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SN74HC161NSR Part Data Attributes

Parametric Data
SN74HC161NSR Texas Instruments
Buy Now Datasheet
Compare Parts:
SN74HC161NSR Texas Instruments 4-Bit Synchronous Binary Counters 16-SOP -40 to 85
Select a part to compare:
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SOIC
Pin Count 16
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Additional Feature RCO OUTPUT
Count Direction UP
Family HC/UH
JESD-30 Code R-PDSO-G16
JESD-609 Code e4
Length 10.2 mm
Load Capacitance (CL) 50 pF
Load/Preset Input YES
Logic IC Type BINARY COUNTER
Max Frequency@Nom-Sup 25000000 Hz
Max I(ol) 0.0052 A
Mode of Operation SYNCHRONOUS
Moisture Sensitivity Level 1
Number of Bits 4
Number of Functions 1
Number of Terminals 16
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
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) 0.08 mA
Prop. Delay@Nom-Sup 46 ns
Propagation Delay (tpd) 255 ns
Qualification Status Not Qualified
Seated Height-Max 2 mm
Supply Voltage-Max (Vsup) 6 V
Supply Voltage-Min (Vsup) 2 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount YES
Technology CMOS
Temperature Grade INDUSTRIAL
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) 30
Trigger Type POSITIVE EDGE
Width 5.3 mm
fmax-Min 29 MHz

Alternate Parts for SN74HC161NSR

This table gives cross-reference parts and alternative options found for SN74HC161NSR. 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 SN74HC161NSR, 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 Manufacturer Composite Price Description Compare
SN74HC161NSRG4 Rochester Electronics LLC Check for Price Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PDSO16, GREEN, PLASTIC, SOP-16 SN74HC161NSR vs SN74HC161NSRG4
MM74HC161SJX Fairchild Semiconductor Corporation Check for Price Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PDSO16, 5.30 MM, EIAJ TYPE2, SOP-16 SN74HC161NSR vs MM74HC161SJX
TC74HC161AF-EL Toshiba America Electronic Components Check for Price IC HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16, 0.300 INCH, PLASTIC, SOIC-16, Counter SN74HC161NSR vs TC74HC161AF-EL
SN74HC161NSRG4 Texas Instruments Check for Price 4-Bit Synchronous Binary Counters 16-SO -40 to 85 SN74HC161NSR vs SN74HC161NSRG4
HD74HC161FPEL Renesas Electronics Corporation Check for Price HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16, 5.50 X 10.06 MM, 1.27 MM PITCH, PLASTIC, SOP-16 SN74HC161NSR vs HD74HC161FPEL
Part Number Manufacturer Composite Price Description Compare
5962R9573001VXC Intersil Corporation Check for Price HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDFP16, CERAMIC, DFP-16 SN74HC161NSR vs 5962R9573001VXC
M54HC161K STMicroelectronics Check for Price HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDFP16, CERAMIC, DFP-16 SN74HC161NSR vs M54HC161K
8409401EA Texas Instruments Check for Price HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, CDIP16, CERAMIC, DIP-16 SN74HC161NSR vs 8409401EA
5962R9573001VEC Intersil Corporation Check for Price HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDIP16, CERAMIC, DIP-16 SN74HC161NSR vs 5962R9573001VEC
8607601FA Defense Logistics Agency Check for Price Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, CDFP16, CERAMIC, FP-16 SN74HC161NSR vs 8607601FA
SN54HC161WR Texas Instruments Check for Price HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDFP16, CERAMIC, FP-16 SN74HC161NSR vs SN54HC161WR
84094012X Texas Instruments Check for Price HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, QCC20, 0.350 X 0.350 INCH, CERAMIC, LCC-20 SN74HC161NSR vs 84094012X
HCS161DMSH Harris Semiconductor Check for Price Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, CDIP16, SN74HC161NSR vs HCS161DMSH
HD74HC161P Renesas Electronics Corporation Check for Price HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP16, 6.30 X 19.20 MM, 2.54 MM PITCH, PLASTIC, DIP-16 SN74HC161NSR vs HD74HC161P
8407501EA Texas Instruments $8.7610 Synchronous 4-Bit Binary Counters 16-CDIP -55 to 125 SN74HC161NSR vs 8407501EA

SN74HC161NSR Related Parts

SN74HC161NSR Frequently Asked Questions (FAQ)

  • The maximum clock frequency of the SN74HC161NSR is 30 MHz, but it can vary depending on the operating voltage and temperature. It's recommended to check the timing characteristics in the datasheet for specific frequency limits.

  • To ensure proper power and decoupling, connect the VCC pin to a stable 2-6V power supply, and decouple the power supply lines with 0.1uF ceramic capacitors as close to the device as possible. Additionally, use a 10uF bulk capacitor for further decoupling.

  • The maximum input voltage that the SN74HC161NSR can tolerate is 7V, but it's recommended to keep the input voltage within the recommended operating voltage range of 2-6V to ensure reliable operation.

  • During power-up, the asynchronous reset input (MR) should be held low for at least 10ns to ensure that the device is properly reset. After power-up, the MR input can be released to allow normal operation.

  • The output pins of the SN74HC161NSR are designed to drive standard TTL loads. For proper termination, use a pull-up resistor of 1kΩ to 4.7kΩ to VCC, and a pull-down resistor of 1kΩ to 4.7kΩ to GND, depending on the specific application requirements.