SN74LS161ADAlternatives & Equivalent Parts
About SN74LS161AD
SN74LS161AD is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | SN74LS161ADSource | SN74LS161AN | SN74LS85D | SN74LS00D | SN74LS00DR | SN74LS161ADG4 |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Small Outline Packages | Dual-In-Line Packages | Small Outline Packages | — | Small Outline Packages | Small Outline Packages |
| Pin Count | 16 | 16 | 16 | — | 14 | 16 |
| Temperature Range | ~ 70.0°C | ~ 70.0°C | ~ 70.0°C | — | ~ 70.0°C | ~ 70.0°C |
| Price | $0.0706 | $0.3150 | $0.8201 | $0.1365 | $0.1915 | — |
| Electrical Parameters | ||||||
| YTEOL | 0 | 15 | 0 | — | 15 | 0 |
| Additional Feature | TCO OUTPUT | TCO OUTPUT | CASCADABLE | — | — | TCO OUTPUT |
| Count Direction | UP | UP | — | — | — | UP |
| Family | LS | LS | LS | — | LS | LS |
| JESD-30 Code | R-PDSO-G16 | R-PDIP-T16 | R-PDSO-G16 | — | R-PDSO-G14 | R-PDSO-G16 |
| JESD-609 Code | e4 | e4 | e4 | — | e4 | e4 |
| Load Capacitance (CL) | 15 pF | 15 pF | 15 pF | — | 15 pF | 15 pF |
| Load/Preset Input | YES | YES | — | — | — | YES |
| Logic IC Type | BINARY COUNTER | BINARY COUNTER | MAGNITUDE COMPARATOR | — | NAND GATE | BINARY COUNTER |
| Max Frequency@Nom-Sup | 25000000 Hz | 25000000 Hz | — | — | — | 25000000 Hz |
| Max I(ol) | 0.008 A | 0.008 A | 0.016 A | — | 0.008 A | 0.008 A |
| Mode of Operation | SYNCHRONOUS | SYNCHRONOUS | — | — | — | SYNCHRONOUS |
| Number of Bits | 4 | 4 | 4 | — | — | 4 |
| Number of Functions | 1 | 1 | 4 | — | 4 | 1 |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 | DIP16,.3 | SOP16,.25 | — | SOP14,.25 | SOP16,.25 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | — | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | IN-LINE | SMALL OUTLINE | — | SMALL OUTLINE | SMALL OUTLINE |
| Packing Method | TUBE | TUBE | TUBE | — | TR | TUBE |
| Peak Reflow Temperature (Cel) | 260 | — | 260 | — | 260 | 260 |
| Power Supply Current-Max (ICC) | 32 mA | 32 mA | 20 mA | — | 4.4 mA | 32 mA |
| Prop. Delay@Nom-Sup | 35 ns | 35 ns | 35 ns | — | 15 ns | 27 ns |
| Propagation Delay (tpd) | 27 ns | 27 ns | 45 ns | — | 15 ns | 27 ns |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | — | Not Qualified | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25 V | 5.25 V | 5.25 V | — | 5.25 V | 5.25 V |
| Supply Voltage-Min (Vsup) | 4.75 V | 4.75 V | 4.75 V | — | 4.75 V | 4.75 V |
| Supply Voltage-Nom (Vsup) | 5 V | 5 V | 5 V | — | 5 V | 5 V |
| Surface Mount | YES | NO | YES | — | YES | YES |
| Technology | TTL | TTL | TTL | — | TTL | TTL |
| Temperature Grade | COMMERCIAL | COMMERCIAL | COMMERCIAL | — | COMMERCIAL | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | — | Nickel/Palladium/Gold (Ni/Pd/Au) | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING | THROUGH-HOLE | GULL WING | — | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | 2.54 mm | 1.27 mm | — | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL | DUAL | — | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | — | 30 | — | 30 | 30 |
| Trigger Type | POSITIVE EDGE | POSITIVE EDGE | — | — | — | POSITIVE EDGE |
| fmax-Min | 25 MHz | 25 MHz | — | — | — | 25 MHz |
| ## SN74LS161AD Alternates Showing results | Image | — | — | — | — | — |
| Pbfree Code | — | Yes | — | — | Yes | — |
| ## SN74LS161AN Alternates Showing results | — | Image | — | — | — | — |
| Output Polarity | — | — | TRUE | — | — | — |
| Schmitt Trigger | — | — | YES | — | NO | — |
| ## SN74LS85D Alternates Showing results | — | — | Image | — | — | — |
| Number of Inputs | — | — | — | — | 2 | — |
| ## SN74LS00DR Alternates Showing results | — | — | — | — | Image | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
suggested
suggested
Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, TTL, PDSO16
Why Look for Alternatives?
Finding alternatives for SN74LS161AD is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating SN74LS161AD replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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Request Alternatives for SN74LS161ADFAQ
What is equivalent to SN74LS161AD?
Known equivalents for SN74LS161AD include SN74LS161AN, SN74LS85D, SN74LS00D. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74LS161AD?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify SN74LS161AD alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.