SN74ALS191ADG4Alternatives & Equivalent Parts
About SN74ALS191ADG4
SN74ALS191ADG4 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.
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Specification Comparison
| Parameter | SN74ALS191ADG4Source | SN74ALS191AD | SN74ALS561ADWRG4 |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Small Outline Packages | — | Small Outline Packages |
| Pin Count | 16 | — | 20 |
| Temperature Range | ~ 70.0°C | — | ~ 70.0°C |
| Price | — | $1.7745 | — |
| Stock | In Stock | In Stock | In Stock |
| Lifecycle | OBSOLETE | — | OBSOLETE |
| Electrical Parameters | |||
| YTEOL | 0 | — | 0 |
| Additional Feature | TCO OUTPUT | — | TCO OUTPUT; COUNT ENABLE INPUTS |
| Count Direction | BIDIRECTIONAL | — | UP |
| Family | ALS | — | ALS |
| JESD-30 Code | R-PDSO-G16 | — | R-PDSO-G20 |
| JESD-609 Code | e4 | — | — |
| Load Capacitance (CL) | 50 pF | — | 50 pF |
| Load/Preset Input | YES | — | YES |
| Logic IC Type | BINARY COUNTER | — | BINARY COUNTER |
| Max Frequency@Nom-Sup | 30000000 Hz | — | 30000000 Hz |
| Max I(ol) | 0.008 A | — | 0.008 A |
| Mode of Operation | SYNCHRONOUS | — | SYNCHRONOUS |
| Number of Bits | 4 | — | 4 |
| Number of Functions | 1 | — | 1 |
| Package Body Material | PLASTIC/EPOXY | — | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 | — | SOP20,.4 |
| Package Shape | RECTANGULAR | — | RECTANGULAR |
| Package Style | SMALL OUTLINE | — | SMALL OUTLINE |
| Packing Method | TUBE | — | TR |
| Peak Reflow Temperature (Cel) | 260 | — | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 22 mA | — | 36 mA |
| Prop. Delay@Nom-Sup | 31 ns | — | 18 ns |
| Propagation Delay (tpd) | 18 ns | — | 18 ns |
| Qualification Status | Not Qualified | — | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5 V | — | 5.5 V |
| Supply Voltage-Min (Vsup) | 4.5 V | — | 4.5 V |
| Supply Voltage-Nom (Vsup) | 5 V | — | 5 V |
| Surface Mount | YES | — | YES |
| Technology | TTL | — | TTL |
| Temperature Grade | COMMERCIAL | — | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD | — | — |
| Terminal Form | GULL WING | — | GULL WING |
| Terminal Pitch | 1.27 mm | — | 1.27 mm |
| Terminal Position | DUAL | — | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | — | NOT SPECIFIED |
| Trigger Type | POSITIVE EDGE | — | POSITIVE EDGE |
| fmax-Min | 30 MHz | — | 30 MHz |
| Output Characteristics | — | — | 3-STATE |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 2 alternatives for SN74ALS191ADG4 — response within 24 hours.
Quick Links
Binary Counter, ALS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, PDSO16
Binary Counter, ALS Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, TTL, PDSO20
Why Look for Alternatives?
Finding alternatives for SN74ALS191ADG4 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 SN74ALS191ADG4 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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FAQ
What is equivalent to SN74ALS191ADG4?
Known equivalents for SN74ALS191ADG4 include SN74ALS191AD, SN74ALS561ADWRG4. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74ALS191ADG4?
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 SN74ALS191ADG4 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.