74LS90 – Decade Counter / Binary Counter [Original]

74LS90 Decade Counter / Binary Counter IC (TTL, 42MHz)

The 74LS90 is a monolithic integrated circuit. It functions as both a Decade Counter and a Binary Counter. This device incorporates four master-slave flip-flops. It features a divide-by-two counter and a three-stage binary counter, providing a divide-by-five count cycle. The IC includes a gated zero reset for initialization. Gated set-to-nine inputs are provided for BCD nine's complement applications. It supports a maximum count frequency of 42 MHz. This low-power TTL device operates reliably up to 70°C.

Specifications:

• IC Type: Decade Counter / Binary Counter
• Logic Family: 74LS Series (TTL)
• Count Frequency (Max): 42 MHz
• Counter Configuration: Divide-by-2 & 3-Stage Binary (Divide-by-5)
• Reset Function: Gated Zero Reset
• BCD Functionality: Gated Set-to-Nine Inputs
• Operating Temperature (Max): 70°C
• Flip-Flops: 4 Master-Slave
• Power Dissipation: Low
• Supply Voltage: Standard TTL

Key features and benefits:

• Decade Counter and Binary Counter functionality
• Integrated divide-by-two and three-stage binary counters
• 42 MHz maximum count frequency
• Gated zero reset for initialization
• Gated set-to-nine inputs for BCD nine's complement applications
• Low power dissipation
• Standard TTL switching voltages
• Operates reliably in temperatures up to 70°C

Applications:

• Frequency division and generation circuits
• Digital clock and timer circuits
• Event counting and pulse accumulation
• BCD (Binary Coded Decimal) counting applications
• Sequential control and logic systems
• Data processing and display units

Frequently Asked Questions:

Q: What is the primary function of the 74LS90 IC?
A: The 74LS90 IC functions as both a Decade Counter and a Binary Counter, incorporating four master-slave flip-flops for counting operations.

Q: What is the maximum operating frequency of the 74LS90?
A: The 74LS90 supports a maximum count frequency of 42 MHz.

Q: Does the 74LS90 support BCD counting?
A: Yes, the 74LS90 includes gated set-to-nine inputs specifically for BCD nine's complement applications.

Package Includes:

*Image shown is a representation only.

Note: Contact sales(at)electroncomponents.com for bulk enquiry & get best price!