The 74LS169 is a synchronous 4-bit binary up/down counter from Fairchild/ON Semiconductor. This device is designed for high-speed counting applications and features synchronous counting, preset inputs, and a carry output for cascading multiple counters.

Applications

• Frequency dividers
• Digital timers
• Address generation
• Microprocessor counters
• Programmable counters

Features

• Synchronous counting operation
• Up/down counting capability
• Carry output for cascading
• Preset inputs for programmable counting
• TTL compatible inputs and outputs
• High-speed operation

Benefits

• Provides precise counting with synchronous operation.
• Offers flexibility with up/down counting capability.
• Enables cascading for higher-order counting.
• Allows for custom counting sequences with preset inputs.
• Simplifies system integration with TTL compatibility.

Additional Details

The 74LS169 is a 4-bit synchronous binary up/down counter. It features a clock input (CLK), an up/down control input (U/D), preset inputs (A, B, C, D), and a carry output (CO). The counter increments or decrements on the rising edge of the clock, depending on the state of the U/D input. The preset inputs allow the counter to be loaded with a specific value. The carry output is asserted when the counter reaches its maximum or minimum count value, enabling cascading of multiple counters for higher-order counting. The device operates from a 5V supply and has TTL-compatible inputs and outputs.