HLF 74LS90 Decade, Divide-by-Twelve, and Binary Counter – DIP14 | High-Speed TTL Logic | 4.75V–5.25V, 0°C to +70°C | Through-Hole Package

The HLF 74LS90 is a Low-Power Schottky TTL Decade, Divide-by-Twelve, and Binary Counter IC in a DIP14 through-hole package. It consists of four flip-flops arranged for divide-by-2 and divide-by-5 operations, allowing flexible configurations for divide-by-10 (decade) and divide-by-12 counting modes.

With a supply voltage of 4.75V–5.25V and operating temperature of 0°C to +70°C, the 74LS90 offers fast switching speeds, low power dissipation, and reliable TTL-level performance — ideal for digital timing, frequency division, and event counting systems.

Key Features:

• Function: Decade, Divide-by-Twelve, and Binary Counter

• Technology: Low-Power Schottky TTL (LS Series)

• Operating Voltage: 4.75V – 5.25V

• Operating Temperature: 0°C to +70°C

• Package Type: DIP14 (Dual In-Line Package)

• Mounting Type: Through-Hole

• Fast Switching TTL Logic

• Configurable as ÷2, ÷5, ÷10, or ÷12 Counter

• Stable and Reliable Performance for Logic Systems

Applications:

• Digital Counters and Frequency Dividers

• Timing and Clock Generation Circuits

• Event Counting Systems

• Data Processing and Industrial Control

• Educational Logic Circuit Experiments