SN74LS191DR
- Mfr.Part #
- SN74LS191DR
- Manufacturer
- Texas Instruments
- Package / Case
- 16-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC SYNC 4-BIT UP/DN CNTR 16-SOIC
- Stock
- 4,878
- In Stock :
- 4,878
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- Manufacturer :
- Texas Instruments
- Product Category :
- Counters, Dividers
- Trigger Type :
- POSITIVE EDGE
- Thickness :
- 1.58mm
- fmax-Min :
- 20 MHz
- Terminal Form :
- Gull wing
- Radiation Hardening :
- No
- Series :
- 74LS
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Lifecycle Status :
- ACTIVE (Last Updated: 5 days ago)
- Package / Case :
- 16-SOIC (0.154, 3.90mm Width)
- Number of Functions :
- 1
- Direction :
- Up, Down
- Turn On Delay Time :
- 52 ns
- Voltage - Supply :
- 4.75V~5.25V
- Operating Temperature :
- 0°C~70°C
- Power Supplies :
- 5V
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Packing Method :
- TR
- Logic Function :
- Counter
- Length :
- 9.9mm
- Number of Terminations :
- 16
- Pin Count :
- 16
- Weight :
- 141.690917mg
- Factory Lead Time :
- 6 Weeks
- Width :
- 3.91mm
- Height :
- 1.75mm
- Number of Bits per Element :
- 4
- Timing :
- SYNCHRONOUS
- Clock Edge Trigger Type :
- POSITIVE EDGE
- Mount :
- Surface Mount
- Operating Supply Voltage :
- 5V
- Peak Reflow Temperature (Cel) :
- 260
- Packaging :
- Tape and Reel (TR)
- Frequency :
- 25MHz
- Terminal Position :
- Dual
- Additional Feature :
- TCO OUTPUT
- Number of Pins :
- 16
- Logic Type :
- BINARY COUNTER
- Base Part Number :
- 74LS191
- Family :
- LS
- Number of Elements :
- 1
- Propagation Delay :
- 52 ns
- JESD-609 Code :
- e4
- Mounting Type :
- Surface Mount
- Load/Preset Input :
- yes
- Lead Free :
- Contains Lead
- Pbfree Code :
- yes
- RoHS Status :
- ROHS3 Compliant
- Supply Voltage :
- 5V
- Datasheets
- SN74LS191DR

[Counters, Dividers] Texas Instruments SN74LS191DR Overview
Introducing the Texas Instruments SN74LS191DR, a versatile synchronous 4-bit up/down counter integrated circuit (IC) designed to meet the demanding requirements of modern electronic systems. This high-performance component offers seamless integration and exceptional functionality, making it an ideal choice for a wide range of applications.
With its robust design and advanced features, the SN74LS191DR empowers engineers and developers to create innovative solutions for various industries, including automotive, industrial automation, telecommunications, and more. Let's delve into its features and discover how it can elevate your projects to new heights.
SN74LS191DR Features
- High-Speed Synchronous Operation: Enables precise counting in both up and down directions, ensuring accurate data processing.
- 4-Bit Binary Counting: Facilitates efficient data management and manipulation, enhancing system performance.
- Versatile Mode Control: Offers flexibility in operation with load, count, enable, and asynchronous clear inputs.
- Wide Operating Voltage Range: Supports reliable functionality across diverse voltage levels, accommodating varying system requirements.
- 16-Pin SOIC Package: Provides ease of integration and space-saving benefits, ideal for compact designs and densely populated PCBs.
- Robust Construction: Ensures durability and longevity, even in challenging environmental conditions.
SN74LS191DR Applications
- Industrial Automation: The SN74LS191DR is utilized in PLCs (Programmable Logic Controllers), frequency counters, and motor control systems for accurate counting and monitoring of industrial processes.
- Automotive Electronics: In automotive applications, this IC serves in odometers, speedometers, and other instrumentation panels, providing reliable counting and data processing functions.
- Telecommunications: Within telecommunications equipment, such as digital switches and network routers, the SN74LS191DR plays a crucial role in data routing and synchronization.
- Consumer Electronics: From digital clocks to gaming consoles, the IC offers seamless counting capabilities, enhancing user experience and device functionality.
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