SN74ALS191ADR
- Mfr.Part #
- SN74ALS191ADR
- Manufacturer
- Texas Instruments
- Package / Case
- 16-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC COUNTER BIN 4BIT U/D 16-SOIC
- Stock
- 3
- In Stock :
- 3
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- Manufacturer :
- Texas Instruments
- Product Category :
- Counters, Dividers
- Mounting Type :
- Surface Mount
- Height :
- 1.75mm
- Timing :
- SYNCHRONOUS
- Terminal Form :
- Gull wing
- Series :
- 74ALS
- Voltage - Supply :
- 4.5V~5.5V
- Terminal Position :
- Dual
- Clock Edge Trigger Type :
- POSITIVE EDGE
- Qualification Status :
- Not Qualified
- Number of Functions :
- 1
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Lead Free :
- Lead Free
- Propagation Delay :
- 37 ns
- Power Supply Current-Max (ICC) :
- 22mA
- Load Capacitance :
- 50pF
- JESD-609 Code :
- e4
- Weight :
- 141.690917mg
- RoHS Status :
- ROHS3 Compliant
- Pbfree Code :
- yes
- Time@Peak Reflow Temperature-Max (s) :
- NOT SPECIFIED
- Operating Temperature :
- 0°C~70°C
- Packaging :
- Tape and Reel (TR)
- Length :
- 9.9mm
- Frequency :
- 30MHz
- Number of Pins :
- 16
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Load/Preset Input :
- yes
- Number of Terminations :
- 16
- Family :
- ALS
- ECCN Code :
- EAR99
- Power Supplies :
- 5V
- Width :
- 3.91mm
- Pin Count :
- 16
- Operating Supply Voltage :
- 5V
- Direction :
- Up, Down
- Turn On Delay Time :
- 37 ns
- Logic Type :
- BINARY COUNTER
- Mount :
- Surface Mount
- Max I(ol) :
- 0.008 A
- Thickness :
- 1.58mm
- Peak Reflow Temperature (Cel) :
- 260
- Number of Elements :
- 1
- Base Part Number :
- 74ALS191
- Logic Function :
- Counter
- Package / Case :
- 16-SOIC (0.154, 3.90mm Width)
- Supply Voltage :
- 5V
- Number of Bits per Element :
- 4
- Additional Feature :
- TCO OUTPUT
- Factory Lead Time :
- 6 Weeks
- Trigger Type :
- POSITIVE EDGE
- Lifecycle Status :
- ACTIVE (Last Updated: 2 days ago)
- Packing Method :
- TR
- Datasheets
- SN74ALS191ADR

Counters, Dividers Texas Instruments SN74ALS191ADR Overview
The Counters, Dividers Texas Instruments SN74ALS191ADR is a highly versatile 4-bit binary up/down counter IC, crafted for precision and reliability in digital data processing applications. Manufactured by Texas Instruments, this component is designed to perform seamless counting operations in either direction, supporting a wide range of engineering projects. Its robustness, combined with a compact 16-SOIC package, ensures it can be integrated into various high-density applications where space and accuracy are critical. This IC is particularly suitable for complex multi-function systems requiring high-speed, bidirectional counting capabilities.
SN74ALS191ADR Features
This integrated circuit boasts several key features that make it an indispensable part of any digital counting solution:
- Bi-directional counting capability allows for versatile data management.
- 4-bit binary counter design supports precise data processing tasks.
- High-speed operation ensures efficient performance in time-sensitive applications.
- Compatible with other TTL logic families for easy integration into existing systems.
- Available in a 16-SOIC package, ideal for applications with limited PCB space.
SN74ALS191ADR Applications
- Digital clocks: Utilized for managing time tracking, enabling accurate hour, minute, and second counts.
- Event counters: Suitable for counting events in surveillance or traffic systems, ensuring accurate logging of occurrences.
- Frequency counters: Used to measure frequency in communication equipment, crucial for maintaining system integrity.
- Assembly lines: Helps in counting products or components during manufacturing, enhancing process efficiency and quality control.
- Robotics: Integral in controlling mechanical movements, counting steps or rotations in precise automation tasks.
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