The SN74LS169BNSR is a high-performance, 4-bit synchronous up/down binary counter designed by Texas Instruments, a leader in semiconductor innovation. This integrated circuit (IC) is part of the 74LS family, known for its low-power Schottky technology, which combines the low power consumption of CMOS with the speed and strength of bipolar transistors.

Key Features

• Counting Capability: The counter can perform both up and down counting, offering flexibility for various applications that require reversible operation.
• Synchronous Operation: All state changes, whether in counting up or down, are initiated by the LOW-to-HIGH transitions of the clock input for consistent and reliable operation.
• Binary Counter: It operates as a 4-bit binary counter, making it suitable for digital systems that require binary counting sequences.
• Direct Clear Function: The device includes a direct clear input that, when activated, sets all outputs to a low level, resetting the counter instantaneously.
• Multiple Count Enable Inputs: The counter features two count enable inputs (P and T) that allow the device to count only when both are in the high state, providing enhanced control over the counting process.
• Output Capability: The SN74LS169BNSR offers fully buffered outputs, which can drive up to 10 low-power Schottky equivalent loads, ensuring compatibility with a wide range of digital components.
• Package Type: It is available in a 16-pin plastic small-outline (SO) package, making it suitable for space-constrained applications.

Applications

The SN74LS169BNSR is a versatile counter IC that can be used in a variety of digital systems. Its applications include:

• Industrial control systems
• Programmable dividers
• Frequency counters
• Timers and time-delay circuits
• Sequence controllers

Quality and Reliability

Texas Instruments is committed to delivering high-quality products. The SN74LS169BNSR is designed and manufactured to meet the stringent requirements of the electronics industry, ensuring reliable performance in a wide range of operating conditions.