74LS169 DIP-16 4-Bit Synchronous Binary Up/Down Counter IC (TTL, 5V)

Description -

The 74LS169 DIP is a TTL logic integrated circuit that functions as a 4-bit synchronous presettable binary up/down counter in a 16-pin Dual Inline Package (DIP). It belongs to the 74LS Low Power Schottky logic family and is designed for high-speed counting, frequency division, timing, and digital control applications.

The IC supports both up and down binary counting using a dedicated control input. All outputs change simultaneously on the rising edge of the clock, ensuring glitch-free synchronous operation. It also features parallel preset inputs, carry look-ahead circuitry, dual enable inputs, and a ripple carry output, making it ideal for cascading multiple counters in digital systems.

Key Features -

• 4-bit synchronous binary up/down counter

• Selectable up or down counting

• Parallel preset capability

• Internal carry look-ahead circuitry

• Dual count enable inputs

• Ripple carry output for cascading

• Low Power Schottky technology

• Standard DIP-16 package

Specifications -

• Product type - TTL Logic IC

• IC Model - 74LS169

• Logic Function - 4-Bit Synchronous Binary Up/Down Counter

• Package type - DIP-16

• Logic family - 74LS TTL

• Operating voltage - 4.75V to 5.25V DC

• Count sequence - Binary (0 to 15)

• Count direction - Up/Down Selectable

• Maximum clock frequency - 25MHz

• Typical power dissipation - 100mW

• High-level output current - -0.4mA

• Low-level output current - 8mA

• Operating temperature - 0C to 70C

Applications -

• Binary event counters

• Frequency dividers

• Digital timers

• Motion and position control

• Frequency synthesis

• Embedded systems

• Industrial automation

• Digital instrumentation