Texas Instruments SN74LS390NS
Product Information
The SN74LS390NS, designed by Texas Instruments, is a specialised dual 4-bit decade and binary counter IC, offering reliable performance and efficient counting capabilities for numerous electronic applications. It is a dedicated integrated circuit that facilitates precise counting and sequential logic functions, perfect for digital electronics and microcontroller-based systems.
HTSUS:
8542.39.0001
Package:
Bulk
Series:
*
edacadModel:
SN74LS390NS Models
edacadModelUrl:
/en/models/13526148
ECCN:
EAR99
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The SN74LS390NS is a counter IC (integrated circuit) designed and manufactured by Texas Instruments. It is a versatile component used in various digital applications that require counting and sequencing functions. The SN74LS390NS is designed explicitly as a decade counter with 2 elements and a 4-bit negative edge. This IC is packaged in a 16-SO (small-outline) package, making it compact and suitable for use in space-constrained designs. Its compact 16-SO package makes it a convenient choice for various digital applications. Its precise counting and sequencing capabilities offer a reliable design solution requiring accurate and efficient counting operations.
The SN74LS390NS is primarily utilised as a decade counter, meaning it can count up to 10 in binary (0 to 9) before resetting. This makes it ideal for digital clocks, frequency dividers, and event sequencing applications. Depending on the application requirements, the counter can be configured to count in various modes, such as up-counting or down-counting.
The SN74LS390NS operates on a negative edge triggering mechanism. This means that the count is updated when a falling edge (transition from high to low) is detected on the clock input. This feature allows precise control and synchronisation of the counter with other components in the digital circuit, ensuring accurate counting and sequencing.
The SN74LS390NS is packaged in a 16-SO package with a small outline. This compact package offers space-saving advantages, making it suitable for applications where size constraints are considered. The box is designed for surface-mount technology (SMT), allowing easy integration into PCBs (printed circuit boards) and automated manufacturing processes.
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